Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
e6906430 | 3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
fc64cf4d | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
a687059c | 5 | * |
352d5a3a LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
a687059c | 8 | * |
8d063cd8 LW |
9 | */ |
10 | ||
a0d0e21e LW |
11 | /* |
12 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
13 | */ | |
45d8adaa | 14 | |
40d34c0d SB |
15 | /* This file contains the top-level functions that are used to create, use |
16 | * and destroy a perl interpreter, plus the functions used by XS code to | |
17 | * call back into perl. Note that it does not contain the actual main() | |
18 | * function of the interpreter; that can be found in perlmain.c | |
19 | */ | |
20 | ||
23c73cf5 PS |
21 | /* PSz 12 Nov 03 |
22 | * | |
23 | * Be proud that perl(1) may proclaim: | |
24 | * Setuid Perl scripts are safer than C programs ... | |
25 | * Do not abandon (deprecate) suidperl. Do not advocate C wrappers. | |
26 | * | |
27 | * The flow was: perl starts, notices script is suid, execs suidperl with same | |
28 | * arguments; suidperl opens script, checks many things, sets itself with | |
29 | * right UID, execs perl with similar arguments but with script pre-opened on | |
30 | * /dev/fd/xxx; perl checks script is as should be and does work. This was | |
31 | * insecure: see perlsec(1) for many problems with this approach. | |
32 | * | |
33 | * The "correct" flow should be: perl starts, opens script and notices it is | |
707d3842 NC |
34 | * suid, checks many things, execs suidperl with similar arguments but with |
35 | * script on /dev/fd/xxx; suidperl checks script and /dev/fd/xxx object are | |
23c73cf5 PS |
36 | * same, checks arguments match #! line, sets itself with right UID, execs |
37 | * perl with same arguments; perl checks many things and does work. | |
38 | * | |
707d3842 | 39 | * (Opening the script in perl instead of suidperl, we "lose" scripts that |
23c73cf5 PS |
40 | * are readable to the target UID but not to the invoker. Where did |
41 | * unreadable scripts work anyway?) | |
42 | * | |
707d3842 NC |
43 | * For now, suidperl and perl are pretty much the same large and cumbersome |
44 | * program, so suidperl can check its argument list (see comments elsewhere). | |
23c73cf5 PS |
45 | * |
46 | * References: | |
47 | * Original bug report: | |
48 | * http://bugs.perl.org/index.html?req=bug_id&bug_id=20010322.218 | |
49 | * http://rt.perl.org/rt2/Ticket/Display.html?id=6511 | |
50 | * Comments and discussion with Debian: | |
51 | * http://bugs.debian.org/203426 | |
52 | * http://bugs.debian.org/220486 | |
53 | * Debian Security Advisory DSA 431-1 (does not fully fix problem): | |
54 | * http://www.debian.org/security/2004/dsa-431 | |
55 | * CVE candidate: | |
56 | * http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0618 | |
57 | * Previous versions of this patch sent to perl5-porters: | |
58 | * http://www.mail-archive.com/perl5-porters@perl.org/msg71953.html | |
59 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75245.html | |
60 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75563.html | |
61 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75635.html | |
62 | * | |
63 | Paul Szabo - psz@maths.usyd.edu.au http://www.maths.usyd.edu.au:8000/u/psz/ | |
64 | School of Mathematics and Statistics University of Sydney 2006 Australia | |
65 | * | |
66 | */ | |
67 | /* PSz 13 Nov 03 | |
68 | * Use truthful, neat, specific error messages. | |
69 | * Cannot always hide the truth; security must not depend on doing so. | |
70 | */ | |
71 | ||
72 | /* PSz 18 Feb 04 | |
73 | * Use global(?), thread-local fdscript for easier checks. | |
74 | * (I do not understand how we could possibly get a thread race: | |
75 | * do not all threads go through the same initialization? Or in | |
76 | * fact, are not threads started only after we get the script and | |
77 | * so know what to do? Oh well, make things super-safe...) | |
78 | */ | |
79 | ||
378cc40b | 80 | #include "EXTERN.h" |
864dbfa3 | 81 | #define PERL_IN_PERL_C |
378cc40b | 82 | #include "perl.h" |
e3321bb0 | 83 | #include "patchlevel.h" /* for local_patches */ |
378cc40b | 84 | |
011f1a1a JH |
85 | #ifdef NETWARE |
86 | #include "nwutil.h" | |
87 | char *nw_get_sitelib(const char *pl); | |
88 | #endif | |
89 | ||
df5cef82 | 90 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
91 | #ifdef I_UNISTD |
92 | #include <unistd.h> | |
93 | #endif | |
a0d0e21e | 94 | |
8bbf20a9 NC |
95 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
96 | # ifdef I_SYS_WAIT | |
97 | # include <sys/wait.h> | |
98 | # endif | |
99 | # ifdef I_SYSUIO | |
100 | # include <sys/uio.h> | |
101 | # endif | |
102 | ||
103 | union control_un { | |
104 | struct cmsghdr cm; | |
105 | char control[CMSG_SPACE(sizeof(int))]; | |
106 | }; | |
107 | ||
108 | #endif | |
109 | ||
5b7ea690 JH |
110 | #ifdef __BEOS__ |
111 | # define HZ 1000000 | |
112 | #endif | |
113 | ||
114 | #ifndef HZ | |
115 | # ifdef CLK_TCK | |
116 | # define HZ CLK_TCK | |
117 | # else | |
118 | # define HZ 60 | |
119 | # endif | |
120 | #endif | |
121 | ||
7114a2d2 | 122 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO) |
20ce7b12 | 123 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 | 124 | #endif |
125 | ||
acfe0abc | 126 | static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen); |
0cb96387 | 127 | |
a687059c LW |
128 | #ifdef IAMSUID |
129 | #ifndef DOSUID | |
130 | #define DOSUID | |
131 | #endif | |
23c73cf5 | 132 | #endif /* IAMSUID */ |
378cc40b | 133 | |
a687059c LW |
134 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
135 | #ifdef DOSUID | |
136 | #undef DOSUID | |
137 | #endif | |
138 | #endif | |
8d063cd8 | 139 | |
e3e72383 NC |
140 | static void |
141 | S_init_tls_and_interp(PerlInterpreter *my_perl) | |
142 | { | |
143 | if (!PL_curinterp) { | |
144 | PERL_SET_INTERP(my_perl); | |
4d1ff10f | 145 | #if defined(USE_5005THREADS) |
e3e72383 NC |
146 | INIT_THREADS; |
147 | ALLOC_THREAD_KEY; | |
06d86050 GS |
148 | #else |
149 | # if defined(USE_ITHREADS) | |
e3e72383 NC |
150 | INIT_THREADS; |
151 | ALLOC_THREAD_KEY; | |
152 | PERL_SET_THX(my_perl); | |
153 | OP_REFCNT_INIT; | |
154 | MUTEX_INIT(&PL_dollarzero_mutex); | |
155 | } | |
156 | #if defined(USE_ITHREADS) | |
157 | else | |
158 | #else | |
159 | /* This always happens for non-ithreads */ | |
160 | #endif | |
161 | { | |
162 | PERL_SET_THX(my_perl); | |
06d86050 GS |
163 | # endif |
164 | #endif | |
e3e72383 NC |
165 | } |
166 | } | |
06d86050 | 167 | |
32e30700 GS |
168 | #ifdef PERL_IMPLICIT_SYS |
169 | PerlInterpreter * | |
7766f137 GS |
170 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
171 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
172 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
173 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
174 | struct IPerlProc* ipP) | |
175 | { | |
176 | PerlInterpreter *my_perl; | |
cd7a8267 | 177 | /* Newx() needs interpreter, so call malloc() instead */ |
32e30700 | 178 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
e3e72383 | 179 | S_init_tls_and_interp(my_perl); |
32e30700 GS |
180 | Zero(my_perl, 1, PerlInterpreter); |
181 | PL_Mem = ipM; | |
7766f137 GS |
182 | PL_MemShared = ipMS; |
183 | PL_MemParse = ipMP; | |
32e30700 GS |
184 | PL_Env = ipE; |
185 | PL_StdIO = ipStd; | |
186 | PL_LIO = ipLIO; | |
187 | PL_Dir = ipD; | |
188 | PL_Sock = ipS; | |
189 | PL_Proc = ipP; | |
1a6eb1c8 | 190 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); |
7766f137 | 191 | |
32e30700 GS |
192 | return my_perl; |
193 | } | |
194 | #else | |
954c1994 GS |
195 | |
196 | /* | |
ccfc67b7 JH |
197 | =head1 Embedding Functions |
198 | ||
954c1994 GS |
199 | =for apidoc perl_alloc |
200 | ||
201 | Allocates a new Perl interpreter. See L<perlembed>. | |
202 | ||
203 | =cut | |
204 | */ | |
205 | ||
93a17b20 | 206 | PerlInterpreter * |
cea2e8a9 | 207 | perl_alloc(void) |
79072805 | 208 | { |
cea2e8a9 | 209 | PerlInterpreter *my_perl; |
35d7cf2c JH |
210 | #ifdef USE_5005THREADS |
211 | dTHX; | |
212 | #endif | |
79072805 | 213 | |
cd7a8267 | 214 | /* Newx() needs interpreter, so call malloc() instead */ |
e8ee3774 | 215 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 216 | |
e3e72383 | 217 | S_init_tls_and_interp(my_perl); |
1a6eb1c8 | 218 | #ifndef PERL_TRACK_MEMPOOL |
206b424e | 219 | return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter); |
1a6eb1c8 MHM |
220 | #else |
221 | Zero(my_perl, 1, PerlInterpreter); | |
222 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); | |
223 | return my_perl; | |
224 | #endif | |
79072805 | 225 | } |
32e30700 | 226 | #endif /* PERL_IMPLICIT_SYS */ |
79072805 | 227 | |
954c1994 GS |
228 | /* |
229 | =for apidoc perl_construct | |
230 | ||
231 | Initializes a new Perl interpreter. See L<perlembed>. | |
232 | ||
233 | =cut | |
234 | */ | |
235 | ||
79072805 | 236 | void |
0cb96387 | 237 | perl_construct(pTHXx) |
79072805 | 238 | { |
4d1ff10f | 239 | #ifdef USE_5005THREADS |
a863c7d1 | 240 | #ifndef FAKE_THREADS |
e1f15930 | 241 | struct perl_thread *thr = NULL; |
a863c7d1 | 242 | #endif /* FAKE_THREADS */ |
4d1ff10f | 243 | #endif /* USE_5005THREADS */ |
ba869deb | 244 | |
620e3b3d | 245 | PERL_UNUSED_ARG(my_perl); |
8990e307 | 246 | #ifdef MULTIPLICITY |
54aff467 | 247 | init_interp(); |
ac27b0f5 | 248 | PL_perl_destruct_level = 1; |
54aff467 GS |
249 | #else |
250 | if (PL_perl_destruct_level > 0) | |
251 | init_interp(); | |
252 | #endif | |
33f46ff6 | 253 | /* Init the real globals (and main thread)? */ |
3280af22 | 254 | if (!PL_linestr) { |
4d1ff10f | 255 | #ifdef USE_5005THREADS |
533c011a | 256 | MUTEX_INIT(&PL_sv_mutex); |
a863c7d1 MB |
257 | /* |
258 | * Safe to use basic SV functions from now on (though | |
259 | * not things like mortals or tainting yet). | |
260 | */ | |
533c011a NIS |
261 | MUTEX_INIT(&PL_eval_mutex); |
262 | COND_INIT(&PL_eval_cond); | |
263 | MUTEX_INIT(&PL_threads_mutex); | |
264 | COND_INIT(&PL_nthreads_cond); | |
ba869deb | 265 | # ifdef EMULATE_ATOMIC_REFCOUNTS |
533c011a | 266 | MUTEX_INIT(&PL_svref_mutex); |
ba869deb | 267 | # endif /* EMULATE_ATOMIC_REFCOUNTS */ |
a863c7d1 | 268 | |
5ff3f7a4 | 269 | MUTEX_INIT(&PL_cred_mutex); |
3d35f11b GS |
270 | MUTEX_INIT(&PL_sv_lock_mutex); |
271 | MUTEX_INIT(&PL_fdpid_mutex); | |
5ff3f7a4 | 272 | |
199100c8 | 273 | thr = init_main_thread(); |
4d1ff10f | 274 | #endif /* USE_5005THREADS */ |
11343788 | 275 | |
14dd3ad8 | 276 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
0b94c7bb | 277 | PL_protect = MEMBER_TO_FPTR(Perl_default_protect); /* for exceptions */ |
14dd3ad8 | 278 | #endif |
312caa8e | 279 | |
2aea9f8a GS |
280 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
281 | ||
133cdda0 | 282 | PL_linestr = newSV(79); |
3280af22 | 283 | sv_upgrade(PL_linestr,SVt_PVIV); |
79072805 | 284 | |
3280af22 | 285 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
286 | /* set read-only and try to insure than we wont see REFCNT==0 |
287 | very often */ | |
288 | ||
3280af22 NIS |
289 | SvREADONLY_on(&PL_sv_undef); |
290 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 291 | |
3280af22 | 292 | sv_setpv(&PL_sv_no,PL_No); |
0766c23b NC |
293 | /* value lookup in void context - happens to have the side effect |
294 | of caching the numeric forms. */ | |
295 | SvIV(&PL_sv_no); | |
3280af22 NIS |
296 | SvNV(&PL_sv_no); |
297 | SvREADONLY_on(&PL_sv_no); | |
298 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 299 | |
3280af22 | 300 | sv_setpv(&PL_sv_yes,PL_Yes); |
0766c23b | 301 | SvIV(&PL_sv_yes); |
3280af22 NIS |
302 | SvNV(&PL_sv_yes); |
303 | SvREADONLY_on(&PL_sv_yes); | |
304 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
42272d83 JH |
305 | |
306 | SvREADONLY_on(&PL_sv_placeholder); | |
307 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
6e72f9df | 308 | } |
79072805 | 309 | |
17afd9a0 NC |
310 | #if defined(HAS_SIGACTION) && defined(SA_SIGINFO) |
311 | PL_sighandlerp = (Sighandler_t) Perl_sighandler_va; | |
312 | #else | |
313 | PL_sighandlerp = (Sighandler_t) Perl_sighandler; | |
314 | #endif | |
3280af22 | 315 | PL_pidstatus = newHV(); |
79072805 LW |
316 | } |
317 | ||
d7559646 | 318 | PL_rs = newSVpvs("\n"); |
dc92893f | 319 | |
cea2e8a9 | 320 | init_stacks(); |
79072805 | 321 | |
748a9306 | 322 | init_ids(); |
3280af22 | 323 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 324 | |
312caa8e | 325 | JMPENV_BOOTSTRAP; |
f86702cc | 326 | STATUS_ALL_SUCCESS; |
327 | ||
0672f40e | 328 | init_i18nl10n(1); |
36477c24 | 329 | SET_NUMERIC_STANDARD(); |
0b5b802d | 330 | |
a7cb1f99 GS |
331 | { |
332 | U8 *s; | |
133cdda0 | 333 | PL_patchlevel = newSV(4); |
155aba94 | 334 | (void)SvUPGRADE(PL_patchlevel, SVt_PVNV); |
a7cb1f99 | 335 | if (PERL_REVISION > 127 || PERL_VERSION > 127 || PERL_SUBVERSION > 127) |
806e7201 | 336 | SvGROW(PL_patchlevel, UTF8_MAXLEN*3+1); |
a7cb1f99 | 337 | s = (U8*)SvPVX(PL_patchlevel); |
9041c2e3 NIS |
338 | /* Build version strings using "native" characters */ |
339 | s = uvchr_to_utf8(s, (UV)PERL_REVISION); | |
340 | s = uvchr_to_utf8(s, (UV)PERL_VERSION); | |
341 | s = uvchr_to_utf8(s, (UV)PERL_SUBVERSION); | |
a7cb1f99 GS |
342 | *s = '\0'; |
343 | SvCUR_set(PL_patchlevel, s - (U8*)SvPVX(PL_patchlevel)); | |
344 | SvPOK_on(PL_patchlevel); | |
1784ce7c JH |
345 | SvNVX(PL_patchlevel) = (NV)PERL_REVISION + |
346 | ((NV)PERL_VERSION / (NV)1000) + | |
347 | ((NV)PERL_SUBVERSION / (NV)1000000); | |
a7cb1f99 GS |
348 | SvNOK_on(PL_patchlevel); /* dual valued */ |
349 | SvUTF8_on(PL_patchlevel); | |
350 | SvREADONLY_on(PL_patchlevel); | |
351 | } | |
79072805 | 352 | |
ab821d7f | 353 | #if defined(LOCAL_PATCH_COUNT) |
15479b4d | 354 | PL_localpatches = (char **) local_patches; /* For possible -v */ |
ab821d7f | 355 | #endif |
356 | ||
52853b95 GS |
357 | #ifdef HAVE_INTERP_INTERN |
358 | sys_intern_init(); | |
359 | #endif | |
360 | ||
3a1ee7e8 | 361 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 362 | |
3280af22 NIS |
363 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
364 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
d7559646 | 365 | PL_errors = newSVpvs(""); |
48c6b404 | 366 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
367 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
368 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
1fcf4c12 | 369 | #ifdef USE_ITHREADS |
13137afc AB |
370 | PL_regex_padav = newAV(); |
371 | av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */ | |
372 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 373 | #endif |
e5dd39fc | 374 | #ifdef USE_REENTRANT_API |
59bd0823 | 375 | Perl_reentrant_init(aTHX); |
e5dd39fc | 376 | #endif |
3d47000e AB |
377 | |
378 | /* Note that strtab is a rather special HV. Assumptions are made | |
379 | about not iterating on it, and not adding tie magic to it. | |
380 | It is properly deallocated in perl_destruct() */ | |
381 | PL_strtab = newHV(); | |
382 | ||
383 | #ifdef USE_5005THREADS | |
384 | MUTEX_INIT(&PL_strtab_mutex); | |
385 | #endif | |
386 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ | |
387 | hv_ksplit(PL_strtab, 512); | |
388 | ||
0631ea03 AB |
389 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
390 | _dyld_lookup_and_bind | |
391 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
392 | #endif /* environ */ | |
393 | ||
75a5c1c6 JH |
394 | #ifndef PERL_MICRO |
395 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 396 | PL_origenviron = environ; |
75a5c1c6 | 397 | # endif |
0631ea03 AB |
398 | #endif |
399 | ||
5b7ea690 | 400 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
390d21d0 | 401 | * available or if the sysconf() fails, use the HZ. |
fe20fd30 JH |
402 | * BeOS has those, but returns the wrong value. |
403 | * The HZ if not originally defined has been by now | |
404 | * been defined as CLK_TCK, if available. */ | |
390d21d0 | 405 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) |
5b7ea690 JH |
406 | PL_clocktick = sysconf(_SC_CLK_TCK); |
407 | if (PL_clocktick <= 0) | |
408 | #endif | |
409 | PL_clocktick = HZ; | |
410 | ||
c0401c5d JH |
411 | PL_stashcache = newHV(); |
412 | ||
8990e307 | 413 | ENTER; |
79072805 LW |
414 | } |
415 | ||
954c1994 | 416 | /* |
62375a60 NIS |
417 | =for apidoc nothreadhook |
418 | ||
419 | Stub that provides thread hook for perl_destruct when there are | |
420 | no threads. | |
421 | ||
422 | =cut | |
423 | */ | |
424 | ||
425 | int | |
4e9e3734 | 426 | Perl_nothreadhook(pTHX) |
62375a60 | 427 | { |
1e7ed80e | 428 | PERL_UNUSED_CONTEXT; |
62375a60 NIS |
429 | return 0; |
430 | } | |
431 | ||
8bbf20a9 NC |
432 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
433 | void | |
434 | Perl_dump_sv_child(pTHX_ SV *sv) | |
435 | { | |
436 | ssize_t got; | |
437 | const int sock = PL_dumper_fd; | |
438 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
439 | union control_un control; | |
440 | struct msghdr msg; | |
441 | struct iovec vec[2]; | |
442 | struct cmsghdr *cmptr; | |
443 | int returned_errno; | |
444 | unsigned char buffer[256]; | |
445 | ||
446 | if(sock == -1 || debug_fd == -1) | |
447 | return; | |
448 | ||
449 | PerlIO_flush(Perl_debug_log); | |
450 | ||
451 | /* All these shenanigans are to pass a file descriptor over to our child for | |
452 | it to dump out to. We can't let it hold open the file descriptor when it | |
453 | forks, as the file descriptor it will dump to can turn out to be one end | |
454 | of pipe that some other process will wait on for EOF. (So as it would | |
455 | be open, the wait would be forever. */ | |
456 | ||
457 | msg.msg_control = control.control; | |
458 | msg.msg_controllen = sizeof(control.control); | |
459 | /* We're a connected socket so we don't need a destination */ | |
460 | msg.msg_name = NULL; | |
461 | msg.msg_namelen = 0; | |
462 | msg.msg_iov = vec; | |
463 | msg.msg_iovlen = 1; | |
464 | ||
465 | cmptr = CMSG_FIRSTHDR(&msg); | |
466 | cmptr->cmsg_len = CMSG_LEN(sizeof(int)); | |
467 | cmptr->cmsg_level = SOL_SOCKET; | |
468 | cmptr->cmsg_type = SCM_RIGHTS; | |
469 | *((int *)CMSG_DATA(cmptr)) = 1; | |
470 | ||
471 | vec[0].iov_base = (void*)&sv; | |
472 | vec[0].iov_len = sizeof(sv); | |
473 | got = sendmsg(sock, &msg, 0); | |
474 | ||
475 | if(got < 0) { | |
476 | perror("Debug leaking scalars parent sendmsg failed"); | |
477 | abort(); | |
478 | } | |
479 | if(got < sizeof(sv)) { | |
480 | perror("Debug leaking scalars parent short sendmsg"); | |
481 | abort(); | |
482 | } | |
483 | ||
484 | /* Return protocol is | |
485 | int: errno value | |
486 | unsigned char: length of location string (0 for empty) | |
487 | unsigned char*: string (not terminated) | |
488 | */ | |
489 | vec[0].iov_base = (void*)&returned_errno; | |
490 | vec[0].iov_len = sizeof(returned_errno); | |
491 | vec[1].iov_base = buffer; | |
492 | vec[1].iov_len = 1; | |
493 | ||
494 | got = readv(sock, vec, 2); | |
495 | ||
496 | if(got < 0) { | |
497 | perror("Debug leaking scalars parent read failed"); | |
498 | PerlIO_flush(PerlIO_stderr()); | |
499 | abort(); | |
500 | } | |
501 | if(got < sizeof(returned_errno) + 1) { | |
502 | perror("Debug leaking scalars parent short read"); | |
503 | PerlIO_flush(PerlIO_stderr()); | |
504 | abort(); | |
505 | } | |
506 | ||
507 | if (*buffer) { | |
508 | got = read(sock, buffer + 1, *buffer); | |
509 | if(got < 0) { | |
510 | perror("Debug leaking scalars parent read 2 failed"); | |
511 | PerlIO_flush(PerlIO_stderr()); | |
512 | abort(); | |
513 | } | |
514 | ||
515 | if(got < *buffer) { | |
516 | perror("Debug leaking scalars parent short read 2"); | |
517 | PerlIO_flush(PerlIO_stderr()); | |
518 | abort(); | |
519 | } | |
520 | } | |
521 | ||
522 | if (returned_errno || *buffer) { | |
523 | Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" | |
524 | " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, | |
525 | returned_errno, strerror(returned_errno)); | |
526 | } | |
527 | } | |
528 | #endif | |
529 | ||
62375a60 | 530 | /* |
954c1994 GS |
531 | =for apidoc perl_destruct |
532 | ||
533 | Shuts down a Perl interpreter. See L<perlembed>. | |
534 | ||
535 | =cut | |
536 | */ | |
537 | ||
31d77e54 | 538 | int |
0cb96387 | 539 | perl_destruct(pTHXx) |
79072805 | 540 | { |
17184076 | 541 | VOL int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
a0d0e21e | 542 | HV *hv; |
8bbf20a9 NC |
543 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
544 | pid_t child; | |
545 | #endif | |
4d1ff10f | 546 | #ifdef USE_5005THREADS |
33f46ff6 | 547 | Thread t; |
cea2e8a9 | 548 | dTHX; |
4d1ff10f | 549 | #endif /* USE_5005THREADS */ |
8990e307 | 550 | |
620e3b3d | 551 | PERL_UNUSED_ARG(my_perl); |
a2592645 | 552 | |
7766f137 GS |
553 | /* wait for all pseudo-forked children to finish */ |
554 | PERL_WAIT_FOR_CHILDREN; | |
555 | ||
4d1ff10f | 556 | #ifdef USE_5005THREADS |
0f15f207 | 557 | #ifndef FAKE_THREADS |
8023c3ce MB |
558 | /* Pass 1 on any remaining threads: detach joinables, join zombies */ |
559 | retry_cleanup: | |
533c011a | 560 | MUTEX_LOCK(&PL_threads_mutex); |
bf49b057 | 561 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 | 562 | "perl_destruct: waiting for %d threads...\n", |
533c011a | 563 | PL_nthreads - 1)); |
33f46ff6 | 564 | for (t = thr->next; t != thr; t = t->next) { |
605e5515 MB |
565 | MUTEX_LOCK(&t->mutex); |
566 | switch (ThrSTATE(t)) { | |
567 | AV *av; | |
c7848ba1 | 568 | case THRf_ZOMBIE: |
bf49b057 | 569 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 | 570 | "perl_destruct: joining zombie %p\n", t)); |
605e5515 MB |
571 | ThrSETSTATE(t, THRf_DEAD); |
572 | MUTEX_UNLOCK(&t->mutex); | |
533c011a | 573 | PL_nthreads--; |
8023c3ce MB |
574 | /* |
575 | * The SvREFCNT_dec below may take a long time (e.g. av | |
576 | * may contain an object scalar whose destructor gets | |
577 | * called) so we have to unlock threads_mutex and start | |
578 | * all over again. | |
579 | */ | |
533c011a | 580 | MUTEX_UNLOCK(&PL_threads_mutex); |
ea0efc06 | 581 | JOIN(t, &av); |
605e5515 | 582 | SvREFCNT_dec((SV*)av); |
bf49b057 | 583 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 | 584 | "perl_destruct: joined zombie %p OK\n", t)); |
8023c3ce | 585 | goto retry_cleanup; |
c7848ba1 | 586 | case THRf_R_JOINABLE: |
bf49b057 | 587 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 MB |
588 | "perl_destruct: detaching thread %p\n", t)); |
589 | ThrSETSTATE(t, THRf_R_DETACHED); | |
ac27b0f5 | 590 | /* |
c7848ba1 MB |
591 | * We unlock threads_mutex and t->mutex in the opposite order |
592 | * from which we locked them just so that DETACH won't | |
593 | * deadlock if it panics. It's only a breach of good style | |
594 | * not a bug since they are unlocks not locks. | |
595 | */ | |
533c011a | 596 | MUTEX_UNLOCK(&PL_threads_mutex); |
c7848ba1 MB |
597 | DETACH(t); |
598 | MUTEX_UNLOCK(&t->mutex); | |
8023c3ce | 599 | goto retry_cleanup; |
c7848ba1 | 600 | default: |
bf49b057 | 601 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 MB |
602 | "perl_destruct: ignoring %p (state %u)\n", |
603 | t, ThrSTATE(t))); | |
604 | MUTEX_UNLOCK(&t->mutex); | |
c7848ba1 | 605 | /* fall through and out */ |
33f46ff6 MB |
606 | } |
607 | } | |
8023c3ce MB |
608 | /* We leave the above "Pass 1" loop with threads_mutex still locked */ |
609 | ||
610 | /* Pass 2 on remaining threads: wait for the thread count to drop to one */ | |
533c011a | 611 | while (PL_nthreads > 1) |
11343788 | 612 | { |
bf49b057 | 613 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 | 614 | "perl_destruct: final wait for %d threads\n", |
533c011a NIS |
615 | PL_nthreads - 1)); |
616 | COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex); | |
11343788 MB |
617 | } |
618 | /* At this point, we're the last thread */ | |
533c011a | 619 | MUTEX_UNLOCK(&PL_threads_mutex); |
bf49b057 | 620 | DEBUG_S(PerlIO_printf(Perl_debug_log, "perl_destruct: armageddon has arrived\n")); |
533c011a NIS |
621 | MUTEX_DESTROY(&PL_threads_mutex); |
622 | COND_DESTROY(&PL_nthreads_cond); | |
b57a092c | 623 | PL_nthreads--; |
0f15f207 | 624 | #endif /* !defined(FAKE_THREADS) */ |
4d1ff10f | 625 | #endif /* USE_5005THREADS */ |
11343788 | 626 | |
3280af22 | 627 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
628 | #ifdef DEBUGGING |
629 | { | |
a2592645 NC |
630 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); |
631 | if (s) { | |
c05e0e2f | 632 | const int i = atoi(s); |
5f05dabc | 633 | if (destruct_level < i) |
634 | destruct_level = i; | |
635 | } | |
4633a7c4 LW |
636 | } |
637 | #endif | |
638 | ||
fe20fd30 | 639 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
640 | dJMPENV; |
641 | int x = 0; | |
642 | ||
643 | JMPENV_PUSH(x); | |
ce7d4f40 | 644 | PERL_UNUSED_VAR(x); |
f3faeb53 AB |
645 | if (PL_endav && !PL_minus_c) |
646 | call_list(PL_scopestack_ix, PL_endav); | |
647 | JMPENV_POP; | |
26f423df | 648 | } |
f3faeb53 | 649 | LEAVE; |
a0d0e21e LW |
650 | FREETMPS; |
651 | ||
e00b64d4 | 652 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 653 | my_fflush_all(); |
e00b64d4 | 654 | |
62375a60 NIS |
655 | if (CALL_FPTR(PL_threadhook)(aTHX)) { |
656 | /* Threads hook has vetoed further cleanup */ | |
b14528dd | 657 | return STATUS_EXIT; |
62375a60 NIS |
658 | } |
659 | ||
8bbf20a9 NC |
660 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
661 | if (destruct_level != 0) { | |
662 | /* Fork here to create a child. Our child's job is to preserve the | |
663 | state of scalars prior to destruction, so that we can instruct it | |
664 | to dump any scalars that we later find have leaked. | |
665 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
666 | fail gracefully */ | |
667 | int fd[2]; | |
668 | ||
669 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
670 | perror("Debug leaking scalars socketpair failed"); | |
671 | abort(); | |
672 | } | |
673 | ||
674 | child = fork(); | |
675 | if(child == -1) { | |
676 | perror("Debug leaking scalars fork failed"); | |
677 | abort(); | |
678 | } | |
679 | if (!child) { | |
680 | /* We are the child */ | |
681 | const int sock = fd[1]; | |
682 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
683 | int f; | |
684 | const char *where; | |
685 | /* Our success message is an integer 0, and a char 0 */ | |
686 | static const char success[sizeof(int) + 1]; | |
687 | ||
688 | close(fd[0]); | |
689 | ||
690 | /* We need to close all other file descriptors otherwise we end up | |
691 | with interesting hangs, where the parent closes its end of a | |
692 | pipe, and sits waiting for (another) child to terminate. Only | |
693 | that child never terminates, because it never gets EOF, because | |
694 | we also have the far end of the pipe open. We even need to | |
695 | close the debugging fd, because sometimes it happens to be one | |
696 | end of a pipe, and a process is waiting on the other end for | |
697 | EOF. Normally it would be closed at some point earlier in | |
698 | destruction, but if we happen to cause the pipe to remain open, | |
699 | EOF never occurs, and we get an infinite hang. Hence all the | |
700 | games to pass in a file descriptor if it's actually needed. */ | |
701 | ||
702 | f = sysconf(_SC_OPEN_MAX); | |
703 | if(f < 0) { | |
704 | where = "sysconf failed"; | |
705 | goto abort; | |
706 | } | |
707 | while (f--) { | |
708 | if (f == sock) | |
709 | continue; | |
710 | close(f); | |
711 | } | |
712 | ||
713 | while (1) { | |
714 | SV *target; | |
715 | union control_un control; | |
716 | struct msghdr msg; | |
717 | struct iovec vec[1]; | |
718 | struct cmsghdr *cmptr; | |
719 | ssize_t got; | |
720 | int got_fd; | |
721 | ||
722 | msg.msg_control = control.control; | |
723 | msg.msg_controllen = sizeof(control.control); | |
724 | /* We're a connected socket so we don't need a source */ | |
725 | msg.msg_name = NULL; | |
726 | msg.msg_namelen = 0; | |
727 | msg.msg_iov = vec; | |
728 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
729 | ||
730 | vec[0].iov_base = (void*)⌖ | |
731 | vec[0].iov_len = sizeof(target); | |
732 | ||
733 | got = recvmsg(sock, &msg, 0); | |
734 | ||
735 | if(got == 0) | |
736 | break; | |
737 | if(got < 0) { | |
738 | where = "recv failed"; | |
739 | goto abort; | |
740 | } | |
741 | if(got < sizeof(target)) { | |
742 | where = "short recv"; | |
743 | goto abort; | |
744 | } | |
745 | ||
746 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { | |
747 | where = "no cmsg"; | |
748 | goto abort; | |
749 | } | |
750 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
751 | where = "wrong cmsg_len"; | |
752 | goto abort; | |
753 | } | |
754 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
755 | where = "wrong cmsg_level"; | |
756 | goto abort; | |
757 | } | |
758 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
759 | where = "wrong cmsg_type"; | |
760 | goto abort; | |
761 | } | |
762 | ||
763 | got_fd = *(int*)CMSG_DATA(cmptr); | |
764 | /* For our last little bit of trickery, put the file descriptor | |
765 | back into Perl_debug_log, as if we never actually closed it | |
766 | */ | |
767 | if(got_fd != debug_fd) { | |
768 | if (dup2(got_fd, debug_fd) == -1) { | |
769 | where = "dup2"; | |
770 | goto abort; | |
771 | } | |
772 | } | |
773 | sv_dump(target); | |
774 | ||
775 | PerlIO_flush(Perl_debug_log); | |
776 | ||
777 | got = write(sock, &success, sizeof(success)); | |
778 | ||
779 | if(got < 0) { | |
780 | where = "write failed"; | |
781 | goto abort; | |
782 | } | |
783 | if(got < sizeof(success)) { | |
784 | where = "short write"; | |
785 | goto abort; | |
786 | } | |
787 | } | |
788 | _exit(0); | |
789 | abort: | |
790 | { | |
791 | int send_errno = errno; | |
792 | unsigned char length = (unsigned char) strlen(where); | |
793 | struct iovec failure[3] = { | |
794 | {(void*)&send_errno, sizeof(send_errno)}, | |
795 | {&length, 1}, | |
796 | {(void*)where, length} | |
797 | }; | |
798 | int got = writev(sock, failure, 3); | |
799 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
800 | in the parent if we try to read from the socketpair after the | |
801 | child has exited, even if there was data to read. | |
802 | So sleep a bit to give the parent a fighting chance of | |
803 | reading the data. */ | |
804 | sleep(2); | |
805 | _exit((got == -1) ? errno : 0); | |
806 | } | |
807 | /* End of child. */ | |
808 | } | |
809 | PL_dumper_fd = fd[0]; | |
810 | close(fd[1]); | |
811 | } | |
812 | #endif | |
813 | ||
ff0cee69 | 814 | /* We must account for everything. */ |
815 | ||
816 | /* Destroy the main CV and syntax tree */ | |
1e27baec NC |
817 | /* Do this now, because destroying ops can cause new SVs to be generated |
818 | in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they | |
819 | PL_curcop to point to a valid op from which the filename structure | |
820 | member is copied. */ | |
821 | PL_curcop = &PL_compiling; | |
3280af22 | 822 | if (PL_main_root) { |
73de1361 EM |
823 | /* ensure comppad/curpad to refer to main's pad */ |
824 | if (CvPADLIST(PL_main_cv)) { | |
825 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
826 | } | |
3280af22 | 827 | op_free(PL_main_root); |
5900599a | 828 | PL_main_root = NULL; |
a0d0e21e | 829 | } |
5900599a | 830 | PL_main_start = NULL; |
3280af22 NIS |
831 | SvREFCNT_dec(PL_main_cv); |
832 | PL_main_cv = Nullcv; | |
24d3c518 | 833 | PL_dirty = TRUE; |
ff0cee69 | 834 | |
13621cfb NIS |
835 | /* Tell PerlIO we are about to tear things apart in case |
836 | we have layers which are using resources that should | |
837 | be cleaned up now. | |
838 | */ | |
839 | ||
840 | PerlIO_destruct(aTHX); | |
841 | ||
3280af22 | 842 | if (PL_sv_objcount) { |
a0d0e21e LW |
843 | /* |
844 | * Try to destruct global references. We do this first so that the | |
845 | * destructors and destructees still exist. Some sv's might remain. | |
846 | * Non-referenced objects are on their own. | |
847 | */ | |
a0d0e21e | 848 | sv_clean_objs(); |
d5aea225 | 849 | PL_sv_objcount = 0; |
4cd59068 | 850 | if (PL_defoutgv && !SvREFCNT(PL_defoutgv)) |
0e2d6244 | 851 | PL_defoutgv = NULL; /* may have been freed */ |
8990e307 LW |
852 | } |
853 | ||
5cd24f17 | 854 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 | 855 | SvREFCNT_dec(PL_warnhook); |
0e2d6244 | 856 | PL_warnhook = NULL; |
3280af22 | 857 | SvREFCNT_dec(PL_diehook); |
0e2d6244 | 858 | PL_diehook = NULL; |
5cd24f17 | 859 | |
4b556e6c | 860 | /* call exit list functions */ |
3280af22 | 861 | while (PL_exitlistlen-- > 0) |
acfe0abc | 862 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 863 | |
3280af22 | 864 | Safefree(PL_exitlist); |
4b556e6c | 865 | |
654c77f7 JH |
866 | PL_exitlist = NULL; |
867 | PL_exitlistlen = 0; | |
868 | ||
551a8b83 | 869 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
870 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
871 | * so we certainly shouldn't free it here | |
872 | */ | |
75a5c1c6 | 873 | #ifndef PERL_MICRO |
4b647fb0 | 874 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
620ebc51 | 875 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
876 | #ifdef USE_ITHREADS |
877 | /* only main thread can free environ[0] contents */ | |
878 | && PL_curinterp == aTHX | |
879 | #endif | |
880 | ) | |
881 | { | |
551a8b83 JH |
882 | I32 i; |
883 | ||
884 | for (i = 0; environ[i]; i++) | |
4b420006 | 885 | safesysfree(environ[i]); |
0631ea03 | 886 | |
4b420006 JH |
887 | /* Must use safesysfree() when working with environ. */ |
888 | safesysfree(environ); | |
551a8b83 JH |
889 | |
890 | environ = PL_origenviron; | |
891 | } | |
892 | #endif | |
75a5c1c6 | 893 | #endif /* !PERL_MICRO */ |
551a8b83 | 894 | |
c8271eaf NC |
895 | if (destruct_level == 0) { |
896 | ||
897 | DEBUG_P(debprofdump()); | |
898 | ||
899 | #if defined(PERLIO_LAYERS) | |
900 | /* No more IO - including error messages ! */ | |
901 | PerlIO_cleanup(aTHX); | |
902 | #endif | |
903 | ||
904 | CopFILE_free(&PL_compiling); | |
905 | CopSTASH_free(&PL_compiling); | |
906 | ||
907 | /* The exit() function will do everything that needs doing. */ | |
908 | return STATUS_EXIT; | |
909 | } | |
910 | ||
dca90c4e | 911 | /* reset so print() ends up where we expect */ |
0e2d6244 | 912 | setdefout(NULL); |
dca90c4e | 913 | |
5f8cb046 DM |
914 | #ifdef USE_ITHREADS |
915 | /* the syntax tree is shared between clones | |
916 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
917 | * REGEXPs in the parent interpreter | |
918 | * we need to manually ReREFCNT_dec for the clones | |
919 | */ | |
920 | { | |
921 | I32 i = AvFILLp(PL_regex_padav) + 1; | |
1a9219e7 | 922 | SV * const * const ary = AvARRAY(PL_regex_padav); |
5f8cb046 DM |
923 | |
924 | while (i) { | |
1a9219e7 | 925 | SV * const resv = ary[--i]; |
35061a7e DM |
926 | |
927 | if (SvFLAGS(resv) & SVf_BREAK) { | |
577e12cc | 928 | /* this is PL_reg_curpm, already freed |
35061a7e DM |
929 | * flag is set in regexec.c:S_regtry |
930 | */ | |
931 | SvFLAGS(resv) &= ~SVf_BREAK; | |
3a1ee7e8 | 932 | } |
1cc8b4c5 AB |
933 | else if(SvREPADTMP(resv)) { |
934 | SvREPADTMP_off(resv); | |
935 | } | |
e438e509 AD |
936 | else if(SvIOKp(resv)) { |
937 | REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv)); | |
5f8cb046 DM |
938 | ReREFCNT_dec(re); |
939 | } | |
940 | } | |
941 | } | |
942 | SvREFCNT_dec(PL_regex_padav); | |
0e2d6244 | 943 | PL_regex_padav = NULL; |
5f8cb046 DM |
944 | PL_regex_pad = NULL; |
945 | #endif | |
946 | ||
c0401c5d JH |
947 | SvREFCNT_dec((SV*) PL_stashcache); |
948 | PL_stashcache = NULL; | |
949 | ||
5f05dabc | 950 | /* loosen bonds of global variables */ |
951 | ||
3280af22 NIS |
952 | if(PL_rsfp) { |
953 | (void)PerlIO_close(PL_rsfp); | |
0e2d6244 | 954 | PL_rsfp = NULL; |
8ebc5c01 | 955 | } |
956 | ||
957 | /* Filters for program text */ | |
3280af22 | 958 | SvREFCNT_dec(PL_rsfp_filters); |
0e2d6244 | 959 | PL_rsfp_filters = NULL; |
8ebc5c01 | 960 | |
095ea9f7 TS |
961 | if (PL_minus_F) { |
962 | Safefree(PL_splitstr); | |
963 | PL_splitstr = NULL; | |
964 | } | |
965 | ||
8ebc5c01 | 966 | /* switches */ |
3280af22 NIS |
967 | PL_preprocess = FALSE; |
968 | PL_minus_n = FALSE; | |
969 | PL_minus_p = FALSE; | |
970 | PL_minus_l = FALSE; | |
971 | PL_minus_a = FALSE; | |
972 | PL_minus_F = FALSE; | |
973 | PL_doswitches = FALSE; | |
599cee73 | 974 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
975 | PL_doextract = FALSE; |
976 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
977 | PL_unsafe = FALSE; |
978 | ||
979 | Safefree(PL_inplace); | |
0e2d6244 | 980 | PL_inplace = NULL; |
a7cb1f99 | 981 | SvREFCNT_dec(PL_patchlevel); |
3280af22 NIS |
982 | |
983 | if (PL_e_script) { | |
984 | SvREFCNT_dec(PL_e_script); | |
0e2d6244 | 985 | PL_e_script = NULL; |
8ebc5c01 | 986 | } |
987 | ||
d5aea225 RG |
988 | PL_perldb = 0; |
989 | ||
8ebc5c01 | 990 | /* magical thingies */ |
991 | ||
7889fe52 | 992 | SvREFCNT_dec(PL_ofs_sv); /* $, */ |
0e2d6244 | 993 | PL_ofs_sv = NULL; |
5f05dabc | 994 | |
7889fe52 | 995 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
0e2d6244 | 996 | PL_ors_sv = NULL; |
8ebc5c01 | 997 | |
3280af22 | 998 | SvREFCNT_dec(PL_rs); /* $/ */ |
0e2d6244 | 999 | PL_rs = NULL; |
dc92893f | 1000 | |
d33b2eba GS |
1001 | PL_multiline = 0; /* $* */ |
1002 | Safefree(PL_osname); /* $^O */ | |
0e2d6244 | 1003 | PL_osname = NULL; |
5f05dabc | 1004 | |
3280af22 | 1005 | SvREFCNT_dec(PL_statname); |
0e2d6244 SS |
1006 | PL_statname = NULL; |
1007 | PL_statgv = NULL; | |
5f05dabc | 1008 | |
8ebc5c01 | 1009 | /* defgv, aka *_ should be taken care of elsewhere */ |
1010 | ||
8ebc5c01 | 1011 | /* clean up after study() */ |
3280af22 | 1012 | SvREFCNT_dec(PL_lastscream); |
0e2d6244 | 1013 | PL_lastscream = NULL; |
3280af22 NIS |
1014 | Safefree(PL_screamfirst); |
1015 | PL_screamfirst = 0; | |
1016 | Safefree(PL_screamnext); | |
1017 | PL_screamnext = 0; | |
8ebc5c01 | 1018 | |
7d5ea4e7 GS |
1019 | /* float buffer */ |
1020 | Safefree(PL_efloatbuf); | |
0e2d6244 | 1021 | PL_efloatbuf = NULL; |
7d5ea4e7 GS |
1022 | PL_efloatsize = 0; |
1023 | ||
8ebc5c01 | 1024 | /* startup and shutdown function lists */ |
3280af22 | 1025 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 1026 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 1027 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 1028 | SvREFCNT_dec(PL_checkav); |
5b7ea690 | 1029 | SvREFCNT_dec(PL_checkav_save); |
3280af22 | 1030 | SvREFCNT_dec(PL_initav); |
0e2d6244 SS |
1031 | PL_beginav = NULL; |
1032 | PL_beginav_save = NULL; | |
1033 | PL_endav = NULL; | |
1034 | PL_checkav = NULL; | |
1035 | PL_checkav_save = NULL; | |
1036 | PL_initav = NULL; | |
5618dfe8 | 1037 | |
8ebc5c01 | 1038 | /* shortcuts just get cleared */ |
0e2d6244 SS |
1039 | PL_envgv = NULL; |
1040 | PL_incgv = NULL; | |
1041 | PL_hintgv = NULL; | |
1042 | PL_errgv = NULL; | |
1043 | PL_argvgv = NULL; | |
1044 | PL_argvoutgv = NULL; | |
1045 | PL_stdingv = NULL; | |
1046 | PL_stderrgv = NULL; | |
1047 | PL_last_in_gv = NULL; | |
1048 | PL_replgv = NULL; | |
1049 | PL_DBgv = NULL; | |
1050 | PL_DBline = NULL; | |
1051 | PL_DBsub = NULL; | |
1052 | PL_DBsingle = NULL; | |
1053 | PL_DBtrace = NULL; | |
1054 | PL_DBsignal = NULL; | |
1055 | PL_DBcv = NULL; | |
1056 | PL_dbargs = NULL; | |
1057 | PL_debstash = NULL; | |
8ebc5c01 | 1058 | |
7a1c5554 | 1059 | SvREFCNT_dec(PL_argvout_stack); |
0e2d6244 | 1060 | PL_argvout_stack = NULL; |
8ebc5c01 | 1061 | |
5c831c24 | 1062 | SvREFCNT_dec(PL_modglobal); |
0e2d6244 | 1063 | PL_modglobal = NULL; |
5c831c24 | 1064 | SvREFCNT_dec(PL_preambleav); |
0e2d6244 | 1065 | PL_preambleav = NULL; |
5c831c24 | 1066 | SvREFCNT_dec(PL_subname); |
0e2d6244 | 1067 | PL_subname = NULL; |
5c831c24 | 1068 | SvREFCNT_dec(PL_linestr); |
0e2d6244 | 1069 | PL_linestr = NULL; |
5c831c24 | 1070 | SvREFCNT_dec(PL_pidstatus); |
0e2d6244 | 1071 | PL_pidstatus = NULL; |
5c831c24 | 1072 | SvREFCNT_dec(PL_toptarget); |
0e2d6244 | 1073 | PL_toptarget = NULL; |
5c831c24 | 1074 | SvREFCNT_dec(PL_bodytarget); |
0e2d6244 SS |
1075 | PL_bodytarget = NULL; |
1076 | PL_formtarget = NULL; | |
5c831c24 | 1077 | |
d33b2eba | 1078 | /* free locale stuff */ |
b9582b6a | 1079 | #ifdef USE_LOCALE_COLLATE |
d33b2eba | 1080 | Safefree(PL_collation_name); |
0e2d6244 | 1081 | PL_collation_name = NULL; |
b9582b6a | 1082 | #endif |
d33b2eba | 1083 | |
b9582b6a | 1084 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba | 1085 | Safefree(PL_numeric_name); |
0e2d6244 | 1086 | PL_numeric_name = NULL; |
a453c169 | 1087 | SvREFCNT_dec(PL_numeric_radix_sv); |
0e2d6244 | 1088 | PL_numeric_radix_sv = NULL; |
b9582b6a | 1089 | #endif |
d33b2eba | 1090 | |
5c831c24 GS |
1091 | /* clear utf8 character classes */ |
1092 | SvREFCNT_dec(PL_utf8_alnum); | |
1093 | SvREFCNT_dec(PL_utf8_alnumc); | |
1094 | SvREFCNT_dec(PL_utf8_ascii); | |
1095 | SvREFCNT_dec(PL_utf8_alpha); | |
1096 | SvREFCNT_dec(PL_utf8_space); | |
1097 | SvREFCNT_dec(PL_utf8_cntrl); | |
1098 | SvREFCNT_dec(PL_utf8_graph); | |
1099 | SvREFCNT_dec(PL_utf8_digit); | |
1100 | SvREFCNT_dec(PL_utf8_upper); | |
1101 | SvREFCNT_dec(PL_utf8_lower); | |
1102 | SvREFCNT_dec(PL_utf8_print); | |
1103 | SvREFCNT_dec(PL_utf8_punct); | |
1104 | SvREFCNT_dec(PL_utf8_xdigit); | |
1105 | SvREFCNT_dec(PL_utf8_mark); | |
1106 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 1107 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 1108 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 1109 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
1110 | SvREFCNT_dec(PL_utf8_idstart); |
1111 | SvREFCNT_dec(PL_utf8_idcont); | |
0e2d6244 SS |
1112 | PL_utf8_alnum = NULL; |
1113 | PL_utf8_alnumc = NULL; | |
1114 | PL_utf8_ascii = NULL; | |
1115 | PL_utf8_alpha = NULL; | |
1116 | PL_utf8_space = NULL; | |
1117 | PL_utf8_cntrl = NULL; | |
1118 | PL_utf8_graph = NULL; | |
1119 | PL_utf8_digit = NULL; | |
1120 | PL_utf8_upper = NULL; | |
1121 | PL_utf8_lower = NULL; | |
1122 | PL_utf8_print = NULL; | |
1123 | PL_utf8_punct = NULL; | |
1124 | PL_utf8_xdigit = NULL; | |
1125 | PL_utf8_mark = NULL; | |
1126 | PL_utf8_toupper = NULL; | |
1127 | PL_utf8_totitle = NULL; | |
1128 | PL_utf8_tolower = NULL; | |
1129 | PL_utf8_tofold = NULL; | |
1130 | PL_utf8_idstart = NULL; | |
1131 | PL_utf8_idcont = NULL; | |
5c831c24 | 1132 | |
971a9dd3 GS |
1133 | if (!specialWARN(PL_compiling.cop_warnings)) |
1134 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
0e2d6244 | 1135 | PL_compiling.cop_warnings = NULL; |
ac27b0f5 NIS |
1136 | if (!specialCopIO(PL_compiling.cop_io)) |
1137 | SvREFCNT_dec(PL_compiling.cop_io); | |
0e2d6244 | 1138 | PL_compiling.cop_io = NULL; |
05ec9bb3 NIS |
1139 | CopFILE_free(&PL_compiling); |
1140 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 1141 | |
a0d0e21e | 1142 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1143 | |
3280af22 NIS |
1144 | hv = PL_defstash; |
1145 | PL_defstash = 0; | |
a0d0e21e | 1146 | SvREFCNT_dec(hv); |
5c831c24 | 1147 | SvREFCNT_dec(PL_curstname); |
0e2d6244 | 1148 | PL_curstname = NULL; |
a0d0e21e | 1149 | |
5a844595 GS |
1150 | /* clear queued errors */ |
1151 | SvREFCNT_dec(PL_errors); | |
0e2d6244 | 1152 | PL_errors = NULL; |
5a844595 | 1153 | |
a0d0e21e | 1154 | FREETMPS; |
0453d815 | 1155 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 1156 | if (PL_scopestack_ix != 0) |
9014280d | 1157 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1158 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
1159 | (long)PL_scopestack_ix); |
1160 | if (PL_savestack_ix != 0) | |
9014280d | 1161 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1162 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
1163 | (long)PL_savestack_ix); |
1164 | if (PL_tmps_floor != -1) | |
9014280d | 1165 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 1166 | (long)PL_tmps_floor + 1); |
a0d0e21e | 1167 | if (cxstack_ix != -1) |
9014280d | 1168 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 1169 | (long)cxstack_ix + 1); |
a0d0e21e | 1170 | } |
8990e307 LW |
1171 | |
1172 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
d33b2eba | 1173 | SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */ |
3280af22 | 1174 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
5226ed68 JH |
1175 | |
1176 | /* the 2 is for PL_fdpid and PL_strtab */ | |
1177 | while (PL_sv_count > 2 && sv_clean_all()) | |
1178 | ; | |
1179 | ||
d33b2eba GS |
1180 | SvFLAGS(PL_fdpid) &= ~SVTYPEMASK; |
1181 | SvFLAGS(PL_fdpid) |= SVt_PVAV; | |
3280af22 NIS |
1182 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
1183 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
d33b2eba | 1184 | |
d4777f27 GS |
1185 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1186 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
0e2d6244 | 1187 | PL_fdpid = NULL; |
d33b2eba | 1188 | |
6c644e78 GS |
1189 | #ifdef HAVE_INTERP_INTERN |
1190 | sys_intern_clear(); | |
1191 | #endif | |
1192 | ||
6e72f9df | 1193 | /* Destruct the global string table. */ |
1194 | { | |
1195 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1196 | * so that sv_free() won't fail on them. | |
1197 | */ | |
d015a557 AL |
1198 | I32 riter = 0; |
1199 | const I32 max = HvMAX(PL_strtab); | |
1a9219e7 | 1200 | HE * const * const array = HvARRAY(PL_strtab); |
d015a557 AL |
1201 | HE *hent = array[0]; |
1202 | ||
6e72f9df | 1203 | for (;;) { |
0453d815 | 1204 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
9014280d | 1205 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
d015a557 AL |
1206 | "Unbalanced string table refcount: (%ld) for \"%s\"", |
1207 | (long)(HeVAL(hent) - Nullsv), HeKEY(hent)); | |
6e72f9df | 1208 | HeVAL(hent) = Nullsv; |
1209 | hent = HeNEXT(hent); | |
1210 | } | |
1211 | if (!hent) { | |
1212 | if (++riter > max) | |
1213 | break; | |
1214 | hent = array[riter]; | |
1215 | } | |
1216 | } | |
1217 | } | |
3280af22 | 1218 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1219 | |
e652bb2f | 1220 | #ifdef USE_ITHREADS |
a0739874 DM |
1221 | /* free the pointer table used for cloning */ |
1222 | ptr_table_free(PL_ptr_table); | |
d5aea225 | 1223 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1224 | #endif |
a0739874 | 1225 | |
d33b2eba GS |
1226 | /* free special SVs */ |
1227 | ||
1228 | SvREFCNT(&PL_sv_yes) = 0; | |
1229 | sv_clear(&PL_sv_yes); | |
1230 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1231 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1232 | |
1233 | SvREFCNT(&PL_sv_no) = 0; | |
1234 | sv_clear(&PL_sv_no); | |
1235 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1236 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1237 | |
9f375a43 DM |
1238 | { |
1239 | int i; | |
1240 | for (i=0; i<=2; i++) { | |
1241 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1242 | sv_clear(PERL_DEBUG_PAD(i)); | |
1243 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1244 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1245 | } | |
1246 | } | |
1247 | ||
0453d815 | 1248 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1249 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1250 | |
c240c76d JH |
1251 | #ifdef DEBUG_LEAKING_SCALARS |
1252 | if (PL_sv_count != 0) { | |
1253 | SV* sva; | |
1254 | SV* sv; | |
1255 | register SV* svend; | |
1256 | ||
1257 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { | |
1258 | svend = &sva[SvREFCNT(sva)]; | |
1259 | for (sv = sva + 1; sv < svend; ++sv) { | |
1260 | if (SvTYPE(sv) != SVTYPEMASK) { | |
00520713 NC |
1261 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
1262 | " flags=0x08%"UVxf | |
1263 | " refcnt=%"UVuf pTHX__FORMAT "\n", | |
1264 | sv, sv->sv_flags, sv->sv_refcnt pTHX__VALUE); | |
8bbf20a9 NC |
1265 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1266 | Perl_dump_sv_child(aTHX_ sv); | |
1267 | #endif | |
c240c76d JH |
1268 | } |
1269 | } | |
1270 | } | |
1271 | } | |
8bbf20a9 NC |
1272 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1273 | { | |
1274 | int status; | |
1275 | fd_set rset; | |
1276 | /* Wait for up to 4 seconds for child to terminate. | |
1277 | This seems to be the least effort way of timing out on reaping | |
1278 | its exit status. */ | |
1279 | struct timeval waitfor = {4, 0}; | |
1280 | int sock = PL_dumper_fd; | |
1281 | ||
1282 | shutdown(sock, 1); | |
1283 | FD_ZERO(&rset); | |
1284 | FD_SET(sock, &rset); | |
1285 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1286 | waitpid(child, &status, WNOHANG); | |
1287 | close(sock); | |
1288 | } | |
1289 | #endif | |
c240c76d | 1290 | #endif |
d5aea225 | 1291 | PL_sv_count = 0; |
c240c76d JH |
1292 | |
1293 | ||
56a2bab7 | 1294 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1295 | /* No more IO - including error messages ! */ |
1296 | PerlIO_cleanup(aTHX); | |
1297 | #endif | |
1298 | ||
9f4bd222 | 1299 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
0e2d6244 | 1300 | as currently layers use it rather than NULL as a marker |
9f4bd222 NIS |
1301 | for no arg - and will try and SvREFCNT_dec it. |
1302 | */ | |
1303 | SvREFCNT(&PL_sv_undef) = 0; | |
1304 | SvREADONLY_off(&PL_sv_undef); | |
1305 | ||
3280af22 | 1306 | Safefree(PL_origfilename); |
0e2d6244 | 1307 | PL_origfilename = NULL; |
3280af22 | 1308 | Safefree(PL_reg_start_tmp); |
d5aea225 RG |
1309 | PL_reg_start_tmp = (char**)NULL; |
1310 | PL_reg_start_tmpl = 0; | |
4c58c75a | 1311 | Safefree(PL_reg_curpm); |
82ba1be6 | 1312 | Safefree(PL_reg_poscache); |
73c86719 | 1313 | free_tied_hv_pool(); |
3280af22 | 1314 | Safefree(PL_op_mask); |
cf36064f | 1315 | Safefree(PL_psig_ptr); |
d5aea225 | 1316 | PL_psig_ptr = (SV**)NULL; |
cf36064f | 1317 | Safefree(PL_psig_name); |
d5aea225 | 1318 | PL_psig_name = (SV**)NULL; |
2c2666fc | 1319 | Safefree(PL_bitcount); |
0e2d6244 | 1320 | PL_bitcount = NULL; |
ce08f86c | 1321 | Safefree(PL_psig_pend); |
d5aea225 | 1322 | PL_psig_pend = (int*)NULL; |
0e2d6244 | 1323 | PL_formfeed = NULL; |
d5aea225 RG |
1324 | Safefree(PL_ofmt); |
1325 | PL_ofmt = Nullch; | |
6e72f9df | 1326 | nuke_stacks(); |
d5aea225 RG |
1327 | PL_tainting = FALSE; |
1328 | PL_taint_warn = FALSE; | |
3280af22 | 1329 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
d5aea225 | 1330 | PL_debug = 0; |
ac27b0f5 | 1331 | |
a0d0e21e | 1332 | DEBUG_P(debprofdump()); |
4d1ff10f | 1333 | #ifdef USE_5005THREADS |
5f08fbcd | 1334 | MUTEX_DESTROY(&PL_strtab_mutex); |
533c011a NIS |
1335 | MUTEX_DESTROY(&PL_sv_mutex); |
1336 | MUTEX_DESTROY(&PL_eval_mutex); | |
5ff3f7a4 | 1337 | MUTEX_DESTROY(&PL_cred_mutex); |
3d35f11b | 1338 | MUTEX_DESTROY(&PL_fdpid_mutex); |
533c011a | 1339 | COND_DESTROY(&PL_eval_cond); |
11d617a5 GS |
1340 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
1341 | MUTEX_DESTROY(&PL_svref_mutex); | |
1342 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ | |
fc36a67e | 1343 | |
8023c3ce | 1344 | /* As the penultimate thing, free the non-arena SV for thrsv */ |
533c011a NIS |
1345 | Safefree(SvPVX(PL_thrsv)); |
1346 | Safefree(SvANY(PL_thrsv)); | |
1347 | Safefree(PL_thrsv); | |
1348 | PL_thrsv = Nullsv; | |
4d1ff10f | 1349 | #endif /* USE_5005THREADS */ |
d33b2eba | 1350 | |
e5dd39fc | 1351 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1352 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1353 | #endif |
1354 | ||
612f20c3 GS |
1355 | sv_free_arenas(); |
1356 | ||
fc36a67e | 1357 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1358 | ||
3280af22 | 1359 | if (PL_mess_sv) { |
2a8de9e2 AL |
1360 | /* we know that type == SVt_PVMG */ |
1361 | ||
9c63abab | 1362 | /* it could have accumulated taint magic */ |
2a8de9e2 AL |
1363 | MAGIC* mg; |
1364 | MAGIC* moremagic; | |
1365 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1366 | moremagic = mg->mg_moremagic; | |
1367 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1368 | && mg->mg_len >= 0) | |
1369 | Safefree(mg->mg_ptr); | |
1370 | Safefree(mg); | |
9c63abab | 1371 | } |
2a8de9e2 | 1372 | |
fc36a67e | 1373 | /* we know that type >= SVt_PV */ |
676a626c | 1374 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1375 | Safefree(SvANY(PL_mess_sv)); |
1376 | Safefree(PL_mess_sv); | |
0e2d6244 | 1377 | PL_mess_sv = NULL; |
fc36a67e | 1378 | } |
b14528dd | 1379 | return STATUS_EXIT; |
79072805 LW |
1380 | } |
1381 | ||
954c1994 GS |
1382 | /* |
1383 | =for apidoc perl_free | |
1384 | ||
1385 | Releases a Perl interpreter. See L<perlembed>. | |
1386 | ||
1387 | =cut | |
1388 | */ | |
1389 | ||
79072805 | 1390 | void |
0cb96387 | 1391 | perl_free(pTHXx) |
79072805 | 1392 | { |
1a6eb1c8 MHM |
1393 | #ifdef PERL_TRACK_MEMPOOL |
1394 | { | |
1395 | /* | |
1396 | * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero | |
1397 | * value as we're probably hunting memory leaks then | |
1398 | */ | |
1399 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); | |
1400 | if (!s || atoi(s) == 0) { | |
1401 | /* Emulate the PerlHost behaviour of free()ing all memory allocated in this | |
1402 | thread at thread exit. */ | |
1403 | while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)) | |
1404 | safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next)); | |
1405 | } | |
1406 | } | |
1407 | #endif | |
1408 | ||
acfe0abc | 1409 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1410 | # if defined(PERL_IMPLICIT_SYS) |
e4720ea4 | 1411 | { |
acfe0abc | 1412 | # ifdef NETWARE |
e4720ea4 | 1413 | void *host = nw_internal_host; |
acfe0abc | 1414 | # else |
e4720ea4 | 1415 | void *host = w32_internal_host; |
acfe0abc | 1416 | # endif |
e4720ea4 | 1417 | PerlMem_free(aTHXx); |
acfe0abc | 1418 | # ifdef NETWARE |
e4720ea4 | 1419 | nw_delete_internal_host(host); |
acfe0abc | 1420 | # else |
e4720ea4 | 1421 | win32_delete_internal_host(host); |
acfe0abc | 1422 | # endif |
e4720ea4 | 1423 | } |
1c0ca838 GS |
1424 | # else |
1425 | PerlMem_free(aTHXx); | |
1426 | # endif | |
acfe0abc GS |
1427 | #else |
1428 | PerlMem_free(aTHXx); | |
76e3520e | 1429 | #endif |
79072805 LW |
1430 | } |
1431 | ||
304e8f30 NC |
1432 | #if defined(USE_5005THREADS) || defined(USE_ITHREADS) |
1433 | /* provide destructors to clean up the thread key when libperl is unloaded */ | |
1434 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1435 | ||
b21e3693 | 1436 | #if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__) |
304e8f30 | 1437 | #pragma fini "perl_fini" |
5100483f NC |
1438 | #elif defined(__sun) && !defined(__GNUC__) |
1439 | #pragma fini (perl_fini) | |
304e8f30 NC |
1440 | #endif |
1441 | ||
24c2fff4 NC |
1442 | static void |
1443 | #if defined(__GNUC__) | |
1444 | __attribute__((destructor)) | |
304e8f30 | 1445 | #endif |
f1c3982b | 1446 | perl_fini(void) |
304e8f30 NC |
1447 | { |
1448 | if (PL_curinterp) | |
1449 | FREE_THREAD_KEY; | |
1450 | } | |
1451 | ||
1452 | #endif /* WIN32 */ | |
1453 | #endif /* THREADS */ | |
1454 | ||
4b556e6c | 1455 | void |
864dbfa3 | 1456 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1457 | { |
3280af22 NIS |
1458 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1459 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1460 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1461 | ++PL_exitlistlen; | |
4b556e6c JD |
1462 | } |
1463 | ||
63fe74dd NC |
1464 | #ifdef HAS_PROCSELFEXE |
1465 | /* This is a function so that we don't hold on to MAXPATHLEN | |
1466 | bytes of stack longer than necessary | |
1467 | */ | |
1468 | STATIC void | |
1469 | S_procself_val(pTHX_ SV *sv, char *arg0) | |
1470 | { | |
1471 | char buf[MAXPATHLEN]; | |
1472 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1473 | ||
1474 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1475 | includes a spurious NUL which will cause $^X to fail in system | |
1476 | or backticks (this will prevent extensions from being built and | |
1477 | many tests from working). readlink is not meant to add a NUL. | |
1478 | Normal readlink works fine. | |
1479 | */ | |
1480 | if (len > 0 && buf[len-1] == '\0') { | |
1481 | len--; | |
1482 | } | |
1483 | ||
1484 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1485 | returning the text "unknown" from the readlink rather than the path | |
1486 | to the executable (or returning an error from the readlink). Any valid | |
1487 | path has a '/' in it somewhere, so use that to validate the result. | |
1488 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1489 | */ | |
1490 | if (len > 0 && memchr(buf, '/', len)) { | |
1491 | sv_setpvn(sv,buf,len); | |
1492 | } | |
1493 | else { | |
1494 | sv_setpv(sv,arg0); | |
1495 | } | |
1496 | } | |
1497 | #endif /* HAS_PROCSELFEXE */ | |
1498 | ||
1499 | STATIC void | |
1500 | S_set_caret_X(pTHX) { | |
b977d03a | 1501 | GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */ |
63fe74dd NC |
1502 | if (tmpgv) { |
1503 | #ifdef HAS_PROCSELFEXE | |
1504 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
1505 | #else | |
1506 | #ifdef OS2 | |
1507 | sv_setpv(GvSV(tmpgv), os2_execname(aTHX)); | |
1508 | #else | |
1509 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); | |
1510 | #endif | |
1511 | #endif | |
1512 | } | |
1513 | } | |
1514 | ||
954c1994 GS |
1515 | /* |
1516 | =for apidoc perl_parse | |
1517 | ||
1518 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1519 | ||
1520 | =cut | |
1521 | */ | |
1522 | ||
79072805 | 1523 | int |
0cb96387 | 1524 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1525 | { |
6224f72b | 1526 | I32 oldscope; |
6224f72b | 1527 | int ret; |
db36c5a1 | 1528 | dJMPENV; |
4d1ff10f | 1529 | #ifdef USE_5005THREADS |
cea2e8a9 GS |
1530 | dTHX; |
1531 | #endif | |
8d063cd8 | 1532 | |
620e3b3d | 1533 | PERL_UNUSED_ARG(my_perl); |
a2592645 | 1534 | |
a687059c LW |
1535 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
1536 | #ifdef IAMSUID | |
1537 | #undef IAMSUID | |
707d3842 | 1538 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c | 1539 | setuid perl scripts securely.\n"); |
23c73cf5 | 1540 | #endif /* IAMSUID */ |
a687059c LW |
1541 | #endif |
1542 | ||
2adc3af3 PP |
1543 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
1544 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
96c77fbf | 1545 | * This MUST be done before any hash stores or fetches take place. |
7f047bfa NC |
1546 | * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) |
1547 | * yourself, it is your responsibility to provide a good random seed! | |
4f83e563 | 1548 | * You can also define PERL_HASH_SEED in compile time, see hv.h. */ |
7f047bfa NC |
1549 | if (!PL_rehash_seed_set) |
1550 | PL_rehash_seed = get_hash_seed(); | |
2adc3af3 | 1551 | { |
a2592645 | 1552 | const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
af32e254 | 1553 | |
ce7d4f40 AL |
1554 | if (s && (atoi(s) == 1)) |
1555 | PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed); | |
2adc3af3 PP |
1556 | } |
1557 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
1558 | ||
3280af22 | 1559 | PL_origargc = argc; |
7223e9d8 | 1560 | PL_origargv = argv; |
a0d0e21e | 1561 | |
dc252d18 NC |
1562 | if (PL_origalen != 0) { |
1563 | PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */ | |
1564 | } | |
1565 | else { | |
1aa6899f JH |
1566 | /* Set PL_origalen be the sum of the contiguous argv[] |
1567 | * elements plus the size of the env in case that it is | |
be0b3d4b | 1568 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
1aa6899f JH |
1569 | * as the maximum modifiable length of $0. In the worst case |
1570 | * the area we are able to modify is limited to the size of | |
406c4b1e | 1571 | * the original argv[0]. (See below for 'contiguous', though.) |
1aa6899f | 1572 | * --jhi */ |
c05e0e2f | 1573 | const char *s = NULL; |
1aa6899f | 1574 | int i; |
ce7d4f40 | 1575 | const UV mask = |
1aa6899f | 1576 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); |
406c4b1e | 1577 | /* Do the mask check only if the args seem like aligned. */ |
ce7d4f40 | 1578 | const UV aligned = |
406c4b1e JH |
1579 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); |
1580 | ||
1581 | /* See if all the arguments are contiguous in memory. Note | |
1582 | * that 'contiguous' is a loose term because some platforms | |
1583 | * align the argv[] and the envp[]. If the arguments look | |
1584 | * like non-aligned, assume that they are 'strictly' or | |
1585 | * 'traditionally' contiguous. If the arguments look like | |
1586 | * aligned, we just check that they are within aligned | |
1587 | * PTRSIZE bytes. As long as no system has something bizarre | |
1588 | * like the argv[] interleaved with some other data, we are | |
1589 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
7b24b0b0 JH |
1590 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1591 | while (*s) s++; | |
1592 | for (i = 1; i < PL_origargc; i++) { | |
1593 | if ((PL_origargv[i] == s + 1 | |
406c4b1e | 1594 | #ifdef OS2 |
7b24b0b0 | 1595 | || PL_origargv[i] == s + 2 |
406c4b1e | 1596 | #endif |
7b24b0b0 JH |
1597 | ) |
1598 | || | |
1599 | (aligned && | |
1600 | (PL_origargv[i] > s && | |
1601 | PL_origargv[i] <= | |
1602 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1603 | ) | |
1604 | { | |
1605 | s = PL_origargv[i]; | |
1606 | while (*s) s++; | |
1607 | } | |
1608 | else | |
1609 | break; | |
1aa6899f | 1610 | } |
1aa6899f JH |
1611 | } |
1612 | /* Can we grab env area too to be used as the area for $0? */ | |
dc252d18 | 1613 | if (s && PL_origenviron) { |
406c4b1e JH |
1614 | if ((PL_origenviron[0] == s + 1 |
1615 | #ifdef OS2 | |
1616 | || (PL_origenviron[0] == s + 9 && (s += 8)) | |
1617 | #endif | |
1618 | ) | |
1619 | || | |
1620 | (aligned && | |
1621 | (PL_origenviron[0] > s && | |
1622 | PL_origenviron[0] <= | |
1623 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1624 | ) | |
1625 | { | |
1626 | #ifndef OS2 | |
1627 | s = PL_origenviron[0]; | |
1628 | while (*s) s++; | |
1629 | #endif | |
0e2d6244 | 1630 | my_setenv("NoNe SuCh", NULL); |
406c4b1e JH |
1631 | /* Force copy of environment. */ |
1632 | for (i = 1; PL_origenviron[i]; i++) { | |
1633 | if (PL_origenviron[i] == s + 1 | |
1634 | || | |
1635 | (aligned && | |
1636 | (PL_origenviron[i] > s && | |
1637 | PL_origenviron[i] <= | |
1638 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1639 | ) | |
1640 | { | |
1641 | s = PL_origenviron[i]; | |
1642 | while (*s) s++; | |
1643 | } | |
1644 | else | |
1645 | break; | |
1aa6899f | 1646 | } |
406c4b1e | 1647 | } |
1aa6899f | 1648 | } |
dc252d18 | 1649 | PL_origalen = s ? s - PL_origargv[0] + 1 : 0; |
1aa6899f JH |
1650 | } |
1651 | ||
3280af22 | 1652 | if (PL_do_undump) { |
a0d0e21e LW |
1653 | |
1654 | /* Come here if running an undumped a.out. */ | |
1655 | ||
3280af22 NIS |
1656 | PL_origfilename = savepv(argv[0]); |
1657 | PL_do_undump = FALSE; | |
a0d0e21e | 1658 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1659 | init_ids(); |
63fe74dd NC |
1660 | assert (!PL_tainted); |
1661 | TAINT; | |
1662 | S_set_caret_X(aTHX); | |
1663 | TAINT_NOT; | |
a0d0e21e LW |
1664 | init_postdump_symbols(argc,argv,env); |
1665 | return 0; | |
1666 | } | |
1667 | ||
3280af22 | 1668 | if (PL_main_root) { |
3280af22 | 1669 | op_free(PL_main_root); |
5900599a | 1670 | PL_main_root = NULL; |
ff0cee69 | 1671 | } |
5900599a | 1672 | PL_main_start = NULL; |
3280af22 NIS |
1673 | SvREFCNT_dec(PL_main_cv); |
1674 | PL_main_cv = Nullcv; | |
79072805 | 1675 | |
3280af22 NIS |
1676 | time(&PL_basetime); |
1677 | oldscope = PL_scopestack_ix; | |
599cee73 | 1678 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1679 | |
14dd3ad8 GS |
1680 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1681 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit); | |
1682 | #else | |
1683 | JMPENV_PUSH(ret); | |
1684 | #endif | |
6224f72b | 1685 | switch (ret) { |
312caa8e | 1686 | case 0: |
14dd3ad8 GS |
1687 | #ifndef PERL_FLEXIBLE_EXCEPTIONS |
1688 | parse_body(env,xsinit); | |
1689 | #endif | |
7d30b5c4 GS |
1690 | if (PL_checkav) |
1691 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1692 | ret = 0; |
1693 | break; | |
6224f72b GS |
1694 | case 1: |
1695 | STATUS_ALL_FAILURE; | |
1696 | /* FALL THROUGH */ | |
1697 | case 2: | |
1698 | /* my_exit() was called */ | |
3280af22 | 1699 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1700 | LEAVE; |
1701 | FREETMPS; | |
3280af22 | 1702 | PL_curstash = PL_defstash; |
7d30b5c4 GS |
1703 | if (PL_checkav) |
1704 | call_list(oldscope, PL_checkav); | |
b14528dd | 1705 | ret = STATUS_EXIT; |
14dd3ad8 | 1706 | break; |
6224f72b | 1707 | case 3: |
bf49b057 | 1708 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1709 | ret = 1; |
1710 | break; | |
6224f72b | 1711 | } |
14dd3ad8 GS |
1712 | JMPENV_POP; |
1713 | return ret; | |
1714 | } | |
1715 | ||
1716 | #ifdef PERL_FLEXIBLE_EXCEPTIONS | |
1717 | STATIC void * | |
1718 | S_vparse_body(pTHX_ va_list args) | |
1719 | { | |
1720 | char **env = va_arg(args, char**); | |
1721 | XSINIT_t xsinit = va_arg(args, XSINIT_t); | |
1722 | ||
1723 | return parse_body(env, xsinit); | |
312caa8e | 1724 | } |
14dd3ad8 | 1725 | #endif |
312caa8e CS |
1726 | |
1727 | STATIC void * | |
14dd3ad8 | 1728 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1729 | { |
312caa8e | 1730 | int argc = PL_origargc; |
8348d08f | 1731 | char **argv = PL_origargv; |
c05e0e2f | 1732 | const char *scriptname = NULL; |
312caa8e | 1733 | VOL bool dosearch = FALSE; |
c05e0e2f | 1734 | const char *validarg = ""; |
312caa8e CS |
1735 | register SV *sv; |
1736 | register char *s; | |
0e2d6244 | 1737 | const char *cddir = NULL; |
27b8f859 | 1738 | #ifdef USE_SITECUSTOMIZE |
5d39362b | 1739 | bool minus_f = FALSE; |
27b8f859 | 1740 | #endif |
312caa8e | 1741 | |
3280af22 | 1742 | sv_setpvn(PL_linestr,"",0); |
d7559646 | 1743 | sv = newSVpvs(""); /* first used for -I flags */ |
6224f72b GS |
1744 | SAVEFREESV(sv); |
1745 | init_main_stash(); | |
54310121 | 1746 | |
6224f72b GS |
1747 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1748 | if (argv[0][0] != '-' || !argv[0][1]) | |
1749 | break; | |
1750 | #ifdef DOSUID | |
1751 | if (*validarg) | |
1752 | validarg = " PHOOEY "; | |
1753 | else | |
1754 | validarg = argv[0]; | |
23c73cf5 PS |
1755 | /* |
1756 | * Can we rely on the kernel to start scripts with argv[1] set to | |
1757 | * contain all #! line switches (the whole line)? (argv[0] is set to | |
1758 | * the interpreter name, argv[2] to the script name; argv[3] and | |
1759 | * above may contain other arguments.) | |
1760 | */ | |
13281fa4 | 1761 | #endif |
6224f72b GS |
1762 | s = argv[0]+1; |
1763 | reswitch: | |
1764 | switch (*s) { | |
729a02f2 | 1765 | case 'C': |
1d5472a9 GS |
1766 | #ifndef PERL_STRICT_CR |
1767 | case '\r': | |
1768 | #endif | |
6224f72b GS |
1769 | case ' ': |
1770 | case '0': | |
1771 | case 'F': | |
1772 | case 'a': | |
1773 | case 'c': | |
1774 | case 'd': | |
1775 | case 'D': | |
1776 | case 'h': | |
1777 | case 'i': | |
1778 | case 'l': | |
1779 | case 'M': | |
1780 | case 'm': | |
1781 | case 'n': | |
1782 | case 'p': | |
1783 | case 's': | |
1784 | case 'u': | |
1785 | case 'U': | |
1786 | case 'v': | |
599cee73 PM |
1787 | case 'W': |
1788 | case 'X': | |
6224f72b | 1789 | case 'w': |
155aba94 | 1790 | if ((s = moreswitches(s))) |
6224f72b GS |
1791 | goto reswitch; |
1792 | break; | |
33b78306 | 1793 | |
1dbad523 | 1794 | case 't': |
26776375 | 1795 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
317ea90d MS |
1796 | if( !PL_tainting ) { |
1797 | PL_taint_warn = TRUE; | |
1798 | PL_tainting = TRUE; | |
1799 | } | |
1800 | s++; | |
1801 | goto reswitch; | |
6224f72b | 1802 | case 'T': |
26776375 | 1803 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
3280af22 | 1804 | PL_tainting = TRUE; |
317ea90d | 1805 | PL_taint_warn = FALSE; |
6224f72b GS |
1806 | s++; |
1807 | goto reswitch; | |
f86702cc | 1808 | |
6224f72b | 1809 | case 'e': |
bf4acbe4 GS |
1810 | #ifdef MACOS_TRADITIONAL |
1811 | /* ignore -e for Dev:Pseudo argument */ | |
1812 | if (argv[1] && !strcmp(argv[1], "Dev:Pseudo")) | |
5b7ea690 | 1813 | break; |
bf4acbe4 | 1814 | #endif |
c8d40d35 | 1815 | forbid_setid('e', -1); |
3280af22 | 1816 | if (!PL_e_script) { |
d7559646 | 1817 | PL_e_script = newSVpvs(""); |
0cb96387 | 1818 | filter_add(read_e_script, NULL); |
6224f72b GS |
1819 | } |
1820 | if (*++s) | |
3280af22 | 1821 | sv_catpv(PL_e_script, s); |
6224f72b | 1822 | else if (argv[1]) { |
3280af22 | 1823 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1824 | argc--,argv++; |
1825 | } | |
1826 | else | |
cea2e8a9 | 1827 | Perl_croak(aTHX_ "No code specified for -e"); |
d7559646 | 1828 | sv_catpvs(PL_e_script, "\n"); |
6224f72b | 1829 | break; |
afe37c7d | 1830 | |
5d39362b | 1831 | case 'f': |
27b8f859 | 1832 | #ifdef USE_SITECUSTOMIZE |
5d39362b | 1833 | minus_f = TRUE; |
27b8f859 | 1834 | #endif |
5d39362b GA |
1835 | s++; |
1836 | goto reswitch; | |
1837 | ||
6224f72b | 1838 | case 'I': /* -I handled both here and in moreswitches() */ |
c8d40d35 | 1839 | forbid_setid('I', -1); |
0e2d6244 | 1840 | if (!*++s && (s=argv[1]) != NULL) { |
6224f72b GS |
1841 | argc--,argv++; |
1842 | } | |
6224f72b | 1843 | if (s && *s) { |
0df16ed7 | 1844 | STRLEN len = strlen(s); |
c9dc1ff4 | 1845 | const char * const p = savepvn(s, len); |
63fe74dd | 1846 | incpush(p, TRUE, TRUE, FALSE, FALSE); |
d7559646 | 1847 | sv_catpvs(sv, "-I"); |
0df16ed7 | 1848 | sv_catpvn(sv, p, len); |
d7559646 | 1849 | sv_catpvs(sv, " "); |
6224f72b | 1850 | Safefree(p); |
0df16ed7 GS |
1851 | } |
1852 | else | |
a67e862a | 1853 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b GS |
1854 | break; |
1855 | case 'P': | |
c8d40d35 | 1856 | forbid_setid('P', -1); |
3280af22 | 1857 | PL_preprocess = TRUE; |
6224f72b GS |
1858 | s++; |
1859 | goto reswitch; | |
1860 | case 'S': | |
c8d40d35 | 1861 | forbid_setid('S', -1); |
6224f72b GS |
1862 | dosearch = TRUE; |
1863 | s++; | |
1864 | goto reswitch; | |
1865 | case 'V': | |
4c58c75a NC |
1866 | { |
1867 | SV *opts_prog; | |
1868 | ||
1869 | if (!PL_preambleav) | |
1870 | PL_preambleav = newAV(); | |
1871 | av_push(PL_preambleav, | |
d7559646 | 1872 | newSVpvs("use Config;")); |
4c58c75a NC |
1873 | if (*++s != ':') { |
1874 | STRLEN opts; | |
1875 | ||
d7559646 | 1876 | opts_prog = newSVpvs("print Config::myconfig(),"); |
6224f72b | 1877 | #ifdef VMS |
d7559646 | 1878 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 1879 | #else |
d7559646 | 1880 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 1881 | #endif |
4c58c75a | 1882 | opts = SvCUR(opts_prog); |
31ab2e0d | 1883 | |
c53afe68 | 1884 | Perl_sv_catpv(aTHX_ opts_prog,"\" Compile-time options:" |
6224f72b | 1885 | # ifdef DEBUGGING |
c53afe68 | 1886 | " DEBUGGING" |
6224f72b | 1887 | # endif |
704c3401 NC |
1888 | # ifdef DEBUG_LEAKING_SCALARS |
1889 | " DEBUG_LEAKING_SCALARS" | |
1890 | # endif | |
2cd3d6d5 | 1891 | # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
c53afe68 | 1892 | " DEBUG_LEAKING_SCALARS_FORK_DUMP" |
2cd3d6d5 NC |
1893 | # endif |
1894 | # ifdef FAKE_THREADS | |
c53afe68 | 1895 | " FAKE_THREADS" |
2cd3d6d5 | 1896 | # endif |
6224f72b | 1897 | # ifdef MULTIPLICITY |
c53afe68 | 1898 | " MULTIPLICITY" |
6224f72b | 1899 | # endif |
2cd3d6d5 | 1900 | # ifdef MYMALLOC |
c53afe68 | 1901 | " MYMALLOC" |
2cd3d6d5 | 1902 | # endif |
35273943 AL |
1903 | # ifdef NO_MATHOMS |
1904 | " NO_MATHOMS" | |
1905 | # endif | |
2cd3d6d5 | 1906 | # ifdef PERL_DONT_CREATE_GVSV |
c53afe68 | 1907 | " PERL_DONT_CREATE_GVSV" |
2cd3d6d5 NC |
1908 | # endif |
1909 | # ifdef PERL_GLOBAL_STRUCT | |
c53afe68 | 1910 | " PERL_GLOBAL_STRUCT" |
2cd3d6d5 NC |
1911 | # endif |
1912 | # ifdef PERL_IMPLICIT_CONTEXT | |
c53afe68 | 1913 | " PERL_IMPLICIT_CONTEXT" |
2cd3d6d5 NC |
1914 | # endif |
1915 | # ifdef PERL_IMPLICIT_SYS | |
c53afe68 | 1916 | " PERL_IMPLICIT_SYS" |
2cd3d6d5 | 1917 | # endif |
5109a103 NC |
1918 | # ifdef PERL_MAD |
1919 | " PERL_MAD" | |
1920 | # endif | |
2cd3d6d5 | 1921 | # ifdef PERL_MALLOC_WRAP |
c53afe68 | 1922 | " PERL_MALLOC_WRAP" |
2cd3d6d5 NC |
1923 | # endif |
1924 | # ifdef PERL_NEED_APPCTX | |
c53afe68 | 1925 | " PERL_NEED_APPCTX" |
2cd3d6d5 NC |
1926 | # endif |
1927 | # ifdef PERL_NEED_TIMESBASE | |
c53afe68 | 1928 | " PERL_NEED_TIMESBASE" |
2cd3d6d5 NC |
1929 | # endif |
1930 | # ifdef PERL_OLD_COPY_ON_WRITE | |
c53afe68 | 1931 | " PERL_OLD_COPY_ON_WRITE" |
2cd3d6d5 | 1932 | # endif |
704c3401 NC |
1933 | # ifdef PERL_TRACK_MEMPOOL |
1934 | " PERL_TRACK_MEMPOOL" | |
1935 | # endif | |
64596349 AB |
1936 | # ifdef PERL_USE_SAFE_PUTENV |
1937 | " PERL_USE_SAFE_PUTENV" | |
1938 | # endif | |
2cd3d6d5 | 1939 | # ifdef PL_OP_SLAB_ALLOC |
c53afe68 | 1940 | " PL_OP_SLAB_ALLOC" |
2cd3d6d5 NC |
1941 | # endif |
1942 | # ifdef THREADS_HAVE_PIDS | |
c53afe68 | 1943 | " THREADS_HAVE_PIDS" |
2cd3d6d5 | 1944 | # endif |
4d1ff10f | 1945 | # ifdef USE_5005THREADS |
c53afe68 | 1946 | " USE_5005THREADS" |
b363f7ed | 1947 | # endif |
2cd3d6d5 | 1948 | # ifdef USE_64_BIT_ALL |
c53afe68 | 1949 | " USE_64_BIT_ALL" |
ac5e8965 | 1950 | # endif |
10cc9d2a | 1951 | # ifdef USE_64_BIT_INT |
c53afe68 | 1952 | " USE_64_BIT_INT" |
10cc9d2a | 1953 | # endif |
2cd3d6d5 | 1954 | # ifdef USE_ITHREADS |
c53afe68 | 1955 | " USE_ITHREADS" |
2cd3d6d5 NC |
1956 | # endif |
1957 | # ifdef USE_LARGE_FILES | |
c53afe68 | 1958 | " USE_LARGE_FILES" |
ac5e8965 JH |
1959 | # endif |
1960 | # ifdef USE_LONG_DOUBLE | |
c53afe68 | 1961 | " USE_LONG_DOUBLE" |
ac5e8965 | 1962 | # endif |
2cd3d6d5 | 1963 | # ifdef USE_PERLIO |
c53afe68 | 1964 | " USE_PERLIO" |
53430762 | 1965 | # endif |
2cd3d6d5 | 1966 | # ifdef USE_REENTRANT_API |
c53afe68 | 1967 | " USE_REENTRANT_API" |
2cd3d6d5 NC |
1968 | # endif |
1969 | # ifdef USE_SFIO | |
c53afe68 | 1970 | " USE_SFIO" |
ac5e8965 | 1971 | # endif |
5d39362b | 1972 | # ifdef USE_SITECUSTOMIZE |
c53afe68 | 1973 | " USE_SITECUSTOMIZE" |
5d39362b | 1974 | # endif |
2cd3d6d5 | 1975 | # ifdef USE_SOCKS |
c53afe68 | 1976 | " USE_SOCKS" |
b363f7ed | 1977 | # endif |
c53afe68 | 1978 | ); |
31ab2e0d | 1979 | |
4c58c75a NC |
1980 | while (SvCUR(opts_prog) > opts+76) { |
1981 | /* find last space after "options: " and before col 76 | |
1982 | */ | |
31ab2e0d | 1983 | |
4c58c75a | 1984 | const char *space; |
1a9219e7 | 1985 | char * const pv = SvPV_nolen(opts_prog); |
4c58c75a NC |
1986 | const char c = pv[opts+76]; |
1987 | pv[opts+76] = '\0'; | |
1988 | space = strrchr(pv+opts+26, ' '); | |
1989 | pv[opts+76] = c; | |
1990 | if (!space) break; /* "Can't happen" */ | |
31ab2e0d | 1991 | |
4c58c75a | 1992 | /* break the line before that space */ |
31ab2e0d | 1993 | |
4c58c75a | 1994 | opts = space - pv; |
d7559646 AL |
1995 | Perl_sv_insert(aTHX_ opts_prog, opts, 0, |
1996 | STR_WITH_LEN("\\n ")); | |
4c58c75a | 1997 | } |
31ab2e0d | 1998 | |
d7559646 | 1999 | sv_catpvs(opts_prog,"\\n\","); |
b363f7ed | 2000 | |
6224f72b | 2001 | #if defined(LOCAL_PATCH_COUNT) |
4c58c75a NC |
2002 | if (LOCAL_PATCH_COUNT > 0) { |
2003 | int i; | |
d7559646 | 2004 | sv_catpvs(opts_prog, |
4c58c75a NC |
2005 | "\" Locally applied patches:\\n\","); |
2006 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
2007 | if (PL_localpatches[i]) | |
2008 | Perl_sv_catpvf(aTHX_ opts_prog,"q%c\t%s\n%c,", | |
2009 | 0, PL_localpatches[i], 0); | |
2010 | } | |
6224f72b | 2011 | } |
6224f72b | 2012 | #endif |
4c58c75a NC |
2013 | Perl_sv_catpvf(aTHX_ opts_prog, |
2014 | "\" Built under %s\\n\"",OSNAME); | |
6224f72b GS |
2015 | #ifdef __DATE__ |
2016 | # ifdef __TIME__ | |
4c58c75a NC |
2017 | Perl_sv_catpvf(aTHX_ opts_prog, |
2018 | ",\" Compiled at %s %s\\n\"",__DATE__, | |
2019 | __TIME__); | |
6224f72b | 2020 | # else |
4c58c75a NC |
2021 | Perl_sv_catpvf(aTHX_ opts_prog,",\" Compiled on %s\\n\"", |
2022 | __DATE__); | |
6224f72b GS |
2023 | # endif |
2024 | #endif | |
d7559646 | 2025 | sv_catpvs(opts_prog, "; $\"=\"\\n \"; " |
4c58c75a NC |
2026 | "@env = map { \"$_=\\\"$ENV{$_}\\\"\" } " |
2027 | "sort grep {/^PERL/} keys %ENV; "); | |
69fcd688 | 2028 | #ifdef __CYGWIN__ |
d7559646 | 2029 | sv_catpvs(opts_prog, |
4c58c75a | 2030 | "push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); |
69fcd688 | 2031 | #endif |
d7559646 | 2032 | sv_catpvs(opts_prog, |
4c58c75a NC |
2033 | "print \" \\%ENV:\\n @env\\n\" if @env;" |
2034 | "print \" \\@INC:\\n @INC\\n\";"); | |
2035 | } | |
2036 | else { | |
2037 | ++s; | |
2038 | opts_prog = Perl_newSVpvf(aTHX_ | |
2039 | "Config::config_vars(qw%c%s%c)", | |
2040 | 0, s, 0); | |
2041 | s += strlen(s); | |
2042 | } | |
2043 | av_push(PL_preambleav, opts_prog); | |
2044 | /* don't look for script or read stdin */ | |
2045 | scriptname = BIT_BUCKET; | |
2046 | goto reswitch; | |
6224f72b | 2047 | } |
6224f72b | 2048 | case 'x': |
3280af22 | 2049 | PL_doextract = TRUE; |
6224f72b GS |
2050 | s++; |
2051 | if (*s) | |
f4c556ac | 2052 | cddir = s; |
6224f72b GS |
2053 | break; |
2054 | case 0: | |
2055 | break; | |
2056 | case '-': | |
2057 | if (!*++s || isSPACE(*s)) { | |
2058 | argc--,argv++; | |
2059 | goto switch_end; | |
2060 | } | |
2061 | /* catch use of gnu style long options */ | |
2062 | if (strEQ(s, "version")) { | |
0473add9 | 2063 | s = (char *)"v"; |
6224f72b GS |
2064 | goto reswitch; |
2065 | } | |
2066 | if (strEQ(s, "help")) { | |
0473add9 | 2067 | s = (char *)"h"; |
6224f72b GS |
2068 | goto reswitch; |
2069 | } | |
2070 | s--; | |
2071 | /* FALL THROUGH */ | |
2072 | default: | |
cea2e8a9 | 2073 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
2074 | } |
2075 | } | |
6224f72b | 2076 | switch_end: |
54310121 | 2077 | |
f675dbe5 CB |
2078 | if ( |
2079 | #ifndef SECURE_INTERNAL_GETENV | |
2080 | !PL_tainting && | |
2081 | #endif | |
cf756827 | 2082 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 2083 | { |
c05e0e2f | 2084 | const char *popt = s; |
74288ac8 GS |
2085 | while (isSPACE(*s)) |
2086 | s++; | |
317ea90d | 2087 | if (*s == '-' && *(s+1) == 'T') { |
26776375 | 2088 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 2089 | PL_tainting = TRUE; |
317ea90d MS |
2090 | PL_taint_warn = FALSE; |
2091 | } | |
74288ac8 | 2092 | else { |
0e2d6244 | 2093 | char *popt_copy = NULL; |
74288ac8 | 2094 | while (s && *s) { |
4ea8f8fb | 2095 | char *d; |
74288ac8 GS |
2096 | while (isSPACE(*s)) |
2097 | s++; | |
2098 | if (*s == '-') { | |
2099 | s++; | |
2100 | if (isSPACE(*s)) | |
2101 | continue; | |
2102 | } | |
4ea8f8fb | 2103 | d = s; |
74288ac8 GS |
2104 | if (!*s) |
2105 | break; | |
a207a0d7 | 2106 | if (!strchr("CDIMUdmtw", *s)) |
cea2e8a9 | 2107 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
2108 | while (++s && *s) { |
2109 | if (isSPACE(*s)) { | |
cf756827 GS |
2110 | if (!popt_copy) { |
2111 | popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0))); | |
2112 | s = popt_copy + (s - popt); | |
2113 | d = popt_copy + (d - popt); | |
2114 | } | |
4ea8f8fb MS |
2115 | *s++ = '\0'; |
2116 | break; | |
2117 | } | |
2118 | } | |
1c4db469 | 2119 | if (*d == 't') { |
317ea90d MS |
2120 | if( !PL_tainting ) { |
2121 | PL_taint_warn = TRUE; | |
2122 | PL_tainting = TRUE; | |
2123 | } | |
1c4db469 RGS |
2124 | } else { |
2125 | moreswitches(d); | |
2126 | } | |
6224f72b | 2127 | } |
6224f72b GS |
2128 | } |
2129 | } | |
a0d0e21e | 2130 | |
5d39362b GA |
2131 | #ifdef USE_SITECUSTOMIZE |
2132 | if (!minus_f) { | |
2133 | if (!PL_preambleav) | |
2134 | PL_preambleav = newAV(); | |
2135 | av_unshift(PL_preambleav, 1); | |
2136 | (void)av_store(PL_preambleav, 0, Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP)); | |
2137 | } | |
2138 | #endif | |
2139 | ||
317ea90d MS |
2140 | if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) { |
2141 | PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize); | |
2142 | } | |
2143 | ||
6224f72b GS |
2144 | if (!scriptname) |
2145 | scriptname = argv[0]; | |
3280af22 | 2146 | if (PL_e_script) { |
6224f72b GS |
2147 | argc++,argv--; |
2148 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
2149 | } | |
0e2d6244 | 2150 | else if (scriptname == NULL) { |
6224f72b GS |
2151 | #ifdef MSDOS |
2152 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
2153 | moreswitches("h"); | |
2154 | #endif | |
2155 | scriptname = "-"; | |
2156 | } | |
2157 | ||
63fe74dd NC |
2158 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
2159 | assert (!PL_tainted); | |
2160 | TAINT; | |
2161 | S_set_caret_X(aTHX); | |
2162 | TAINT_NOT; | |
6224f72b GS |
2163 | init_perllib(); |
2164 | ||
c8d40d35 NC |
2165 | { |
2166 | int suidscript; | |
2167 | const int fdscript | |
2168 | = open_script(scriptname, dosearch, sv, &suidscript); | |
6224f72b | 2169 | |
c8d40d35 | 2170 | validate_suid(validarg, scriptname, fdscript, suidscript); |
6224f72b | 2171 | |
64ca3a65 | 2172 | #ifndef PERL_MICRO |
c8d40d35 NC |
2173 | # if defined(SIGCHLD) || defined(SIGCLD) |
2174 | { | |
2175 | # ifndef SIGCHLD | |
2176 | # define SIGCHLD SIGCLD | |
2177 | # endif | |
2178 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
2179 | if (sigstate == (Sighandler_t) SIG_IGN) { | |
2180 | if (ckWARN(WARN_SIGNAL)) | |
2181 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), | |
2182 | "Can't ignore signal CHLD, forcing to default"); | |
2183 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
2184 | } | |
0b5b802d | 2185 | } |
c8d40d35 | 2186 | # endif |
64ca3a65 | 2187 | #endif |
0b5b802d | 2188 | |
c8d40d35 | 2189 | if (PL_doextract |
bf4acbe4 | 2190 | #ifdef MACOS_TRADITIONAL |
c8d40d35 | 2191 | || gMacPerl_AlwaysExtract |
bf4acbe4 | 2192 | #endif |
c8d40d35 NC |
2193 | ) { |
2194 | ||
2195 | /* This will croak if suidscript is >= 0, as -x cannot be used with | |
2196 | setuid scripts. */ | |
2197 | forbid_setid('x', suidscript); | |
2198 | /* Hence you can't get here if suidscript >= 0 */ | |
f4c556ac | 2199 | |
c8d40d35 NC |
2200 | find_beginning(); |
2201 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) | |
2202 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
2203 | } | |
f4c556ac | 2204 | } |
6224f72b | 2205 | |
133cdda0 | 2206 | PL_main_cv = PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
2207 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); |
2208 | CvUNIQUE_on(PL_compcv); | |
2209 | ||
9755d405 | 2210 | CvPADLIST(PL_compcv) = pad_new(0); |
4d1ff10f | 2211 | #ifdef USE_5005THREADS |
533c011a | 2212 | CvOWNER(PL_compcv) = 0; |
cd7a8267 | 2213 | Newx(CvMUTEXP(PL_compcv), 1, perl_mutex); |
533c011a | 2214 | MUTEX_INIT(CvMUTEXP(PL_compcv)); |
4d1ff10f | 2215 | #endif /* USE_5005THREADS */ |
6224f72b | 2216 | |
0c4f7ff0 | 2217 | boot_core_PerlIO(); |
6224f72b | 2218 | boot_core_UNIVERSAL(); |
09bef843 | 2219 | boot_core_xsutils(); |
6224f72b GS |
2220 | |
2221 | if (xsinit) | |
acfe0abc | 2222 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 2223 | #ifndef PERL_MICRO |
cb7b5b16 | 2224 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) || defined(SYMBIAN) |
c5be433b | 2225 | init_os_extras(); |
6224f72b | 2226 | #endif |
64ca3a65 | 2227 | #endif |
6224f72b | 2228 | |
29209bc5 | 2229 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
2230 | # ifdef HAS_SOCKS5_INIT |
2231 | socks5_init(argv[0]); | |
2232 | # else | |
29209bc5 | 2233 | SOCKSinit(argv[0]); |
1b9c9cf5 | 2234 | # endif |
ac27b0f5 | 2235 | #endif |
29209bc5 | 2236 | |
6224f72b GS |
2237 | init_predump_symbols(); |
2238 | /* init_postdump_symbols not currently designed to be called */ | |
2239 | /* more than once (ENV isn't cleared first, for example) */ | |
2240 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2241 | if (!PL_do_undump) |
6224f72b GS |
2242 | init_postdump_symbols(argc,argv,env); |
2243 | ||
fe20fd30 JH |
2244 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2245 | * or explicitly in some platforms. | |
085a54d9 | 2246 | * locale.c:Perl_init_i18nl10n() if the environment |
f8bb70a6 | 2247 | * look like the user wants to use UTF-8. */ |
fe20fd30 JH |
2248 | #if defined(SYMBIAN) |
2249 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ | |
2250 | #endif | |
d2aaa77e JH |
2251 | if (PL_unicode) { |
2252 | /* Requires init_predump_symbols(). */ | |
f8bb70a6 | 2253 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
d2aaa77e JH |
2254 | IO* io; |
2255 | PerlIO* fp; | |
2256 | SV* sv; | |
2257 | ||
f8bb70a6 | 2258 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
d2aaa77e | 2259 | * and the default open disciplines. */ |
f8bb70a6 JH |
2260 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2261 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2262 | (fp = IoIFP(io))) | |
2263 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2264 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2265 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2266 | (fp = IoOFP(io))) | |
2267 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2268 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2269 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2270 | (fp = IoOFP(io))) | |
2271 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2272 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
b977d03a NC |
2273 | (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL, |
2274 | SVt_PV)))) { | |
f8bb70a6 JH |
2275 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; |
2276 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2277 | if (in) { | |
2278 | if (out) | |
2279 | sv_setpvn(sv, ":utf8\0:utf8", 11); | |
2280 | else | |
2281 | sv_setpvn(sv, ":utf8\0", 6); | |
2282 | } | |
2283 | else if (out) | |
2284 | sv_setpvn(sv, "\0:utf8", 6); | |
2285 | SvSETMAGIC(sv); | |
2286 | } | |
b310b053 JH |
2287 | } |
2288 | } | |
2289 | ||
5835a535 JH |
2290 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2291 | if (strEQ(s, "unsafe")) | |
2292 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2293 | else if (strEQ(s, "safe")) | |
2294 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2295 | else | |
2296 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2297 | } | |
2298 | ||
6224f72b GS |
2299 | init_lexer(); |
2300 | ||
2301 | /* now parse the script */ | |
2302 | ||
5b7ea690 | 2303 | SETERRNO(0,SS_NORMAL); |
3280af22 | 2304 | PL_error_count = 0; |
bf4acbe4 GS |
2305 | #ifdef MACOS_TRADITIONAL |
2306 | if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) { | |
2307 | if (PL_minus_c) | |
2308 | Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); | |
2309 | else { | |
2310 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", | |
2311 | MacPerl_MPWFileName(PL_origfilename)); | |
2312 | } | |
2313 | } | |
2314 | #else | |
3280af22 NIS |
2315 | if (yyparse() || PL_error_count) { |
2316 | if (PL_minus_c) | |
cea2e8a9 | 2317 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2318 | else { |
cea2e8a9 | 2319 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2320 | PL_origfilename); |
6224f72b GS |
2321 | } |
2322 | } | |
bf4acbe4 | 2323 | #endif |
57843af0 | 2324 | CopLINE_set(PL_curcop, 0); |
3280af22 NIS |
2325 | PL_curstash = PL_defstash; |
2326 | PL_preprocess = FALSE; | |
2327 | if (PL_e_script) { | |
2328 | SvREFCNT_dec(PL_e_script); | |
0e2d6244 | 2329 | PL_e_script = NULL; |
6224f72b GS |
2330 | } |
2331 | ||
3280af22 | 2332 | if (PL_do_undump) |
6224f72b GS |
2333 | my_unexec(); |
2334 | ||
57843af0 GS |
2335 | if (isWARN_ONCE) { |
2336 | SAVECOPFILE(PL_curcop); | |
2337 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2338 | gv_check(PL_defstash); |
57843af0 | 2339 | } |
6224f72b GS |
2340 | |
2341 | LEAVE; | |
2342 | FREETMPS; | |
2343 | ||
2344 | #ifdef MYMALLOC | |
2345 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
2346 | dump_mstats("after compilation:"); | |
2347 | #endif | |
2348 | ||
2349 | ENTER; | |
3280af22 | 2350 | PL_restartop = 0; |
312caa8e | 2351 | return NULL; |
6224f72b GS |
2352 | } |
2353 | ||
954c1994 GS |
2354 | /* |
2355 | =for apidoc perl_run | |
2356 | ||
2357 | Tells a Perl interpreter to run. See L<perlembed>. | |
2358 | ||
2359 | =cut | |
2360 | */ | |
2361 | ||
6224f72b | 2362 | int |
0cb96387 | 2363 | perl_run(pTHXx) |
6224f72b | 2364 | { |
6224f72b | 2365 | I32 oldscope; |
14dd3ad8 | 2366 | int ret = 0; |
db36c5a1 | 2367 | dJMPENV; |
4d1ff10f | 2368 | #ifdef USE_5005THREADS |
cea2e8a9 GS |
2369 | dTHX; |
2370 | #endif | |
6224f72b | 2371 | |
620e3b3d | 2372 | PERL_UNUSED_ARG(my_perl); |
a2592645 | 2373 | |
3280af22 | 2374 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2375 | #ifdef VMS |
2376 | VMSISH_HUSHED = 0; | |
2377 | #endif | |
6224f72b | 2378 | |
14dd3ad8 | 2379 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 2380 | redo_body: |
14dd3ad8 GS |
2381 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope); |
2382 | #else | |
2383 | JMPENV_PUSH(ret); | |
2384 | #endif | |
6224f72b GS |
2385 | switch (ret) { |
2386 | case 1: | |
2387 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2388 | goto redo_body; |
14dd3ad8 GS |
2389 | case 0: /* normal completion */ |
2390 | #ifndef PERL_FLEXIBLE_EXCEPTIONS | |
2391 | redo_body: | |
2392 | run_body(oldscope); | |
2393 | #endif | |
2394 | /* FALL THROUGH */ | |
2395 | case 2: /* my_exit() */ | |
3280af22 | 2396 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2397 | LEAVE; |
2398 | FREETMPS; | |
3280af22 | 2399 | PL_curstash = PL_defstash; |
3a1ee7e8 | 2400 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
2401 | PL_endav && !PL_minus_c) |
2402 | call_list(oldscope, PL_endav); | |
6224f72b GS |
2403 | #ifdef MYMALLOC |
2404 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2405 | dump_mstats("after execution: "); | |
2406 | #endif | |
b14528dd | 2407 | ret = STATUS_EXIT; |
14dd3ad8 | 2408 | break; |
6224f72b | 2409 | case 3: |
312caa8e CS |
2410 | if (PL_restartop) { |
2411 | POPSTACK_TO(PL_mainstack); | |
2412 | goto redo_body; | |
6224f72b | 2413 | } |
bf49b057 | 2414 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 2415 | FREETMPS; |
14dd3ad8 GS |
2416 | ret = 1; |
2417 | break; | |
6224f72b GS |
2418 | } |
2419 | ||
14dd3ad8 GS |
2420 | JMPENV_POP; |
2421 | return ret; | |
312caa8e CS |
2422 | } |
2423 | ||
14dd3ad8 | 2424 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 2425 | STATIC void * |
14dd3ad8 | 2426 | S_vrun_body(pTHX_ va_list args) |
312caa8e | 2427 | { |
312caa8e CS |
2428 | I32 oldscope = va_arg(args, I32); |
2429 | ||
d101baf7 NC |
2430 | run_body(oldscope); |
2431 | return NULL; | |
14dd3ad8 GS |
2432 | } |
2433 | #endif | |
2434 | ||
2435 | ||
0473add9 | 2436 | STATIC void |
14dd3ad8 GS |
2437 | S_run_body(pTHX_ I32 oldscope) |
2438 | { | |
6224f72b | 2439 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 2440 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 2441 | |
3280af22 | 2442 | if (!PL_restartop) { |
6224f72b | 2443 | DEBUG_x(dump_all()); |
fc64cf4d | 2444 | #ifdef DEBUGGING |
856b6425 NC |
2445 | if (!DEBUG_q_TEST) |
2446 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
fc64cf4d | 2447 | #endif |
b900a521 JH |
2448 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
2449 | PTR2UV(thr))); | |
6224f72b | 2450 | |
3280af22 | 2451 | if (PL_minus_c) { |
bf4acbe4 | 2452 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
2453 | PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", |
2454 | (gMacPerl_ErrorFormat ? "# " : ""), | |
2455 | MacPerl_MPWFileName(PL_origfilename)); | |
bf4acbe4 | 2456 | #else |
bf49b057 | 2457 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
bf4acbe4 | 2458 | #endif |
6224f72b GS |
2459 | my_exit(0); |
2460 | } | |
3280af22 | 2461 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2462 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
2463 | if (PL_initav) |
2464 | call_list(oldscope, PL_initav); | |
6224f72b GS |
2465 | } |
2466 | ||
2467 | /* do it */ | |
2468 | ||
3280af22 | 2469 | if (PL_restartop) { |
533c011a | 2470 | PL_op = PL_restartop; |
3280af22 | 2471 | PL_restartop = 0; |
cea2e8a9 | 2472 | CALLRUNOPS(aTHX); |
6224f72b | 2473 | } |
3280af22 NIS |
2474 | else if (PL_main_start) { |
2475 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2476 | PL_op = PL_main_start; |
cea2e8a9 | 2477 | CALLRUNOPS(aTHX); |
6224f72b | 2478 | } |
f6b3007c JH |
2479 | my_exit(0); |
2480 | /* NOTREACHED */ | |
6224f72b GS |
2481 | } |
2482 | ||
954c1994 | 2483 | /* |
ccfc67b7 JH |
2484 | =head1 SV Manipulation Functions |
2485 | ||
954c1994 GS |
2486 | =for apidoc p||get_sv |
2487 | ||
2488 | Returns the SV of the specified Perl scalar. If C<create> is set and the | |
2489 | Perl variable does not exist then it will be created. If C<create> is not | |
2490 | set and the variable does not exist then NULL is returned. | |
2491 | ||
2492 | =cut | |
2493 | */ | |
2494 | ||
6224f72b | 2495 | SV* |
864dbfa3 | 2496 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
2497 | { |
2498 | GV *gv; | |
4d1ff10f | 2499 | #ifdef USE_5005THREADS |
6224f72b GS |
2500 | if (name[1] == '\0' && !isALPHA(name[0])) { |
2501 | PADOFFSET tmp = find_threadsv(name); | |
411caa50 | 2502 | if (tmp != NOT_IN_PAD) |
6224f72b | 2503 | return THREADSV(tmp); |
6224f72b | 2504 | } |
4d1ff10f | 2505 | #endif /* USE_5005THREADS */ |
6224f72b GS |
2506 | gv = gv_fetchpv(name, create, SVt_PV); |
2507 | if (gv) | |
2508 | return GvSV(gv); | |
0e2d6244 | 2509 | return NULL; |
6224f72b GS |
2510 | } |
2511 | ||
954c1994 | 2512 | /* |
ccfc67b7 JH |
2513 | =head1 Array Manipulation Functions |
2514 | ||
954c1994 GS |
2515 | =for apidoc p||get_av |
2516 | ||
2517 | Returns the AV of the specified Perl array. If C<create> is set and the | |
2518 | Perl variable does not exist then it will be created. If C<create> is not | |
2519 | set and the variable does not exist then NULL is returned. | |
2520 | ||
2521 | =cut | |
2522 | */ | |
2523 | ||
6224f72b | 2524 | AV* |
864dbfa3 | 2525 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b | 2526 | { |
1a9219e7 | 2527 | GV* const gv = gv_fetchpv(name, create, SVt_PVAV); |
6224f72b GS |
2528 | if (create) |
2529 | return GvAVn(gv); | |
2530 | if (gv) | |
2531 | return GvAV(gv); | |
0e2d6244 | 2532 | return NULL; |
6224f72b GS |
2533 | } |
2534 | ||
954c1994 | 2535 | /* |
ccfc67b7 JH |
2536 | =head1 Hash Manipulation Functions |
2537 | ||
954c1994 GS |
2538 | =for apidoc p||get_hv |
2539 | ||
2540 | Returns the HV of the specified Perl hash. If C<create> is set and the | |
2541 | Perl variable does not exist then it will be created. If C<create> is not | |
2542 | set and the variable does not exist then NULL is returned. | |
2543 | ||
2544 | =cut | |
2545 | */ | |
2546 | ||
6224f72b | 2547 | HV* |
864dbfa3 | 2548 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 2549 | { |
c6d79d47 | 2550 | GV* const gv = gv_fetchpv(name, create, SVt_PVHV); |
a0d0e21e LW |
2551 | if (create) |
2552 | return GvHVn(gv); | |
2553 | if (gv) | |
2554 | return GvHV(gv); | |
0e2d6244 | 2555 | return NULL; |
a0d0e21e LW |
2556 | } |
2557 | ||
954c1994 | 2558 | /* |
ccfc67b7 JH |
2559 | =head1 CV Manipulation Functions |
2560 | ||
954c1994 GS |
2561 | =for apidoc p||get_cv |
2562 | ||
2563 | Returns the CV of the specified Perl subroutine. If C<create> is set and | |
2564 | the Perl subroutine does not exist then it will be declared (which has the | |
2565 | same effect as saying C<sub name;>). If C<create> is not set and the | |
2566 | subroutine does not exist then NULL is returned. | |
2567 | ||
2568 | =cut | |
2569 | */ | |
2570 | ||
a0d0e21e | 2571 | CV* |
864dbfa3 | 2572 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e | 2573 | { |
1a9219e7 | 2574 | GV* const gv = gv_fetchpv(name, create, SVt_PVCV); |
e2755b47 | 2575 | /* XXX unsafe for 5005 threads if eval_owner isn't held */ |
f6ec51f7 GS |
2576 | /* XXX this is probably not what they think they're getting. |
2577 | * It has the same effect as "sub name;", i.e. just a forward | |
2578 | * declaration! */ | |
8ebc5c01 | 2579 | if (create && !GvCVu(gv)) |
774d564b | 2580 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 2581 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
5900599a | 2582 | NULL, NULL); |
a0d0e21e | 2583 | if (gv) |
8ebc5c01 | 2584 | return GvCVu(gv); |
a0d0e21e LW |
2585 | return Nullcv; |
2586 | } | |
2587 | ||
79072805 LW |
2588 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2589 | ||
954c1994 | 2590 | /* |
ccfc67b7 JH |
2591 | |
2592 | =head1 Callback Functions | |
2593 | ||
954c1994 GS |
2594 | =for apidoc p||call_argv |
2595 | ||
2596 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2597 | ||
2598 | =cut | |
2599 | */ | |
2600 | ||
a0d0e21e | 2601 | I32 |
864dbfa3 | 2602 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 2603 | |
8ac85365 NIS |
2604 | /* See G_* flags in cop.h */ |
2605 | /* null terminated arg list */ | |
8990e307 | 2606 | { |
a0d0e21e | 2607 | dSP; |
8990e307 | 2608 | |
924508f0 | 2609 | PUSHMARK(SP); |
a0d0e21e | 2610 | if (argv) { |
8990e307 | 2611 | while (*argv) { |
a0d0e21e | 2612 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
2613 | argv++; |
2614 | } | |
a0d0e21e | 2615 | PUTBACK; |
8990e307 | 2616 | } |
864dbfa3 | 2617 | return call_pv(sub_name, flags); |
8990e307 LW |
2618 | } |
2619 | ||
954c1994 GS |
2620 | /* |
2621 | =for apidoc p||call_pv | |
2622 | ||
2623 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2624 | ||
2625 | =cut | |
2626 | */ | |
2627 | ||
a0d0e21e | 2628 | I32 |
864dbfa3 | 2629 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2630 | /* name of the subroutine */ |
2631 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2632 | { |
864dbfa3 | 2633 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
2634 | } |
2635 | ||
954c1994 GS |
2636 | /* |
2637 | =for apidoc p||call_method | |
2638 | ||
2639 | Performs a callback to the specified Perl method. The blessed object must | |
2640 | be on the stack. See L<perlcall>. | |
2641 | ||
2642 | =cut | |
2643 | */ | |
2644 | ||
a0d0e21e | 2645 | I32 |
864dbfa3 | 2646 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2647 | /* name of the subroutine */ |
2648 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2649 | { |
968b3946 | 2650 | return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); |
a0d0e21e LW |
2651 | } |
2652 | ||
2653 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2654 | /* |
2655 | =for apidoc p||call_sv | |
2656 | ||
2657 | Performs a callback to the Perl sub whose name is in the SV. See | |
2658 | L<perlcall>. | |
2659 | ||
2660 | =cut | |
2661 | */ | |
2662 | ||
a0d0e21e | 2663 | I32 |
864dbfa3 | 2664 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 | 2665 | /* See G_* flags in cop.h */ |
a0d0e21e | 2666 | { |
924508f0 | 2667 | dSP; |
a0d0e21e | 2668 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 2669 | UNOP method_op; |
aa689395 | 2670 | I32 oldmark; |
17184076 | 2671 | VOL I32 retval = 0; |
a0d0e21e | 2672 | I32 oldscope; |
54310121 | 2673 | bool oldcatch = CATCH_GET; |
6224f72b | 2674 | int ret; |
1a9219e7 | 2675 | OP* const oldop = PL_op; |
db36c5a1 | 2676 | dJMPENV; |
1e422769 | 2677 | |
a0d0e21e LW |
2678 | if (flags & G_DISCARD) { |
2679 | ENTER; | |
2680 | SAVETMPS; | |
2681 | } | |
2682 | ||
aa689395 | 2683 | Zero(&myop, 1, LOGOP); |
5900599a | 2684 | myop.op_next = NULL; |
f51d4af5 | 2685 | if (!(flags & G_NOARGS)) |
aa689395 | 2686 | myop.op_flags |= OPf_STACKED; |
54310121 | 2687 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2688 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2689 | OPf_WANT_SCALAR); | |
462e5cf6 | 2690 | SAVEOP(); |
533c011a | 2691 | PL_op = (OP*)&myop; |
aa689395 | 2692 | |
3280af22 NIS |
2693 | EXTEND(PL_stack_sp, 1); |
2694 | *++PL_stack_sp = sv; | |
aa689395 | 2695 | oldmark = TOPMARK; |
3280af22 | 2696 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2697 | |
3280af22 | 2698 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2699 | /* Handle first BEGIN of -d. */ |
3280af22 | 2700 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2701 | /* Try harder, since this may have been a sighandler, thus |
2702 | * curstash may be meaningless. */ | |
3280af22 | 2703 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 2704 | && !(flags & G_NODEBUG)) |
533c011a | 2705 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2706 | |
968b3946 GS |
2707 | if (flags & G_METHOD) { |
2708 | Zero(&method_op, 1, UNOP); | |
2709 | method_op.op_next = PL_op; | |
2710 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
2711 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; | |
f39d0b86 | 2712 | PL_op = (OP*)&method_op; |
968b3946 GS |
2713 | } |
2714 | ||
312caa8e | 2715 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2716 | CATCH_SET(TRUE); |
14dd3ad8 | 2717 | call_body((OP*)&myop, FALSE); |
312caa8e | 2718 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2719 | CATCH_SET(oldcatch); |
312caa8e CS |
2720 | } |
2721 | else { | |
d78bda3d | 2722 | myop.op_other = (OP*)&myop; |
3280af22 | 2723 | PL_markstack_ptr--; |
6d1a3977 NC |
2724 | push_return(NULL); |
2725 | create_eval_scope(flags|G_FAKINGEVAL); | |
3280af22 | 2726 | PL_markstack_ptr++; |
a0d0e21e | 2727 | |
14dd3ad8 GS |
2728 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
2729 | redo_body: | |
2730 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body), | |
db36c5a1 | 2731 | (OP*)&myop, FALSE); |
14dd3ad8 GS |
2732 | #else |
2733 | JMPENV_PUSH(ret); | |
2734 | #endif | |
6d1a3977 | 2735 | |
6224f72b GS |
2736 | switch (ret) { |
2737 | case 0: | |
14dd3ad8 GS |
2738 | #ifndef PERL_FLEXIBLE_EXCEPTIONS |
2739 | redo_body: | |
2740 | call_body((OP*)&myop, FALSE); | |
2741 | #endif | |
312caa8e CS |
2742 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2743 | if (!(flags & G_KEEPERR)) | |
2a8de9e2 | 2744 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 2745 | break; |
6224f72b | 2746 | case 1: |
f86702cc | 2747 | STATUS_ALL_FAILURE; |
a0d0e21e | 2748 | /* FALL THROUGH */ |
6224f72b | 2749 | case 2: |
a0d0e21e | 2750 | /* my_exit() was called */ |
3280af22 | 2751 | PL_curstash = PL_defstash; |
a0d0e21e | 2752 | FREETMPS; |
14dd3ad8 | 2753 | JMPENV_POP; |
cc3604b1 | 2754 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2755 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2756 | my_exit_jump(); |
a0d0e21e | 2757 | /* NOTREACHED */ |
6224f72b | 2758 | case 3: |
3280af22 | 2759 | if (PL_restartop) { |
533c011a | 2760 | PL_op = PL_restartop; |
3280af22 | 2761 | PL_restartop = 0; |
312caa8e | 2762 | goto redo_body; |
a0d0e21e | 2763 | } |
3280af22 | 2764 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2765 | if (flags & G_ARRAY) |
2766 | retval = 0; | |
2767 | else { | |
2768 | retval = 1; | |
3280af22 | 2769 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2770 | } |
312caa8e | 2771 | break; |
a0d0e21e | 2772 | } |
a0d0e21e | 2773 | |
3280af22 | 2774 | if (PL_scopestack_ix > oldscope) { |
6d1a3977 | 2775 | delete_eval_scope(); |
a0a2876f | 2776 | pop_return(); |
a0d0e21e | 2777 | } |
14dd3ad8 | 2778 | JMPENV_POP; |
a0d0e21e | 2779 | } |
1e422769 | 2780 | |
a0d0e21e | 2781 | if (flags & G_DISCARD) { |
3280af22 | 2782 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2783 | retval = 0; |
2784 | FREETMPS; | |
2785 | LEAVE; | |
2786 | } | |
533c011a | 2787 | PL_op = oldop; |
a0d0e21e LW |
2788 | return retval; |
2789 | } | |
2790 | ||
14dd3ad8 | 2791 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 2792 | STATIC void * |
14dd3ad8 | 2793 | S_vcall_body(pTHX_ va_list args) |
312caa8e CS |
2794 | { |
2795 | OP *myop = va_arg(args, OP*); | |
2796 | int is_eval = va_arg(args, int); | |
2797 | ||
14dd3ad8 | 2798 | call_body(myop, is_eval); |
312caa8e CS |
2799 | return NULL; |
2800 | } | |
14dd3ad8 | 2801 | #endif |
312caa8e CS |
2802 | |
2803 | STATIC void | |
0473add9 | 2804 | S_call_body(pTHX_ const OP *myop, bool is_eval) |
312caa8e | 2805 | { |
312caa8e CS |
2806 | if (PL_op == myop) { |
2807 | if (is_eval) | |
f807eda9 | 2808 | PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */ |
312caa8e | 2809 | else |
f807eda9 | 2810 | PL_op = Perl_pp_entersub(aTHX); /* this does */ |
312caa8e CS |
2811 | } |
2812 | if (PL_op) | |
cea2e8a9 | 2813 | CALLRUNOPS(aTHX); |
312caa8e CS |
2814 | } |
2815 | ||
6e72f9df | 2816 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2817 | |
954c1994 GS |
2818 | /* |
2819 | =for apidoc p||eval_sv | |
2820 | ||
2821 | Tells Perl to C<eval> the string in the SV. | |
2822 | ||
2823 | =cut | |
2824 | */ | |
2825 | ||
a0d0e21e | 2826 | I32 |
864dbfa3 | 2827 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2828 | |
8ac85365 | 2829 | /* See G_* flags in cop.h */ |
a0d0e21e | 2830 | { |
924508f0 | 2831 | dSP; |
a0d0e21e | 2832 | UNOP myop; /* fake syntax tree node */ |
17184076 NC |
2833 | VOL I32 oldmark = SP - PL_stack_base; |
2834 | VOL I32 retval = 0; | |
6224f72b | 2835 | int ret; |
1a9219e7 | 2836 | OP* const oldop = PL_op; |
db36c5a1 | 2837 | dJMPENV; |
84902520 | 2838 | |
4633a7c4 LW |
2839 | if (flags & G_DISCARD) { |
2840 | ENTER; | |
2841 | SAVETMPS; | |
2842 | } | |
2843 | ||
462e5cf6 | 2844 | SAVEOP(); |
533c011a NIS |
2845 | PL_op = (OP*)&myop; |
2846 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2847 | EXTEND(PL_stack_sp, 1); |
2848 | *++PL_stack_sp = sv; | |
79072805 | 2849 | |
4633a7c4 LW |
2850 | if (!(flags & G_NOARGS)) |
2851 | myop.op_flags = OPf_STACKED; | |
5900599a | 2852 | myop.op_next = NULL; |
6e72f9df | 2853 | myop.op_type = OP_ENTEREVAL; |
54310121 | 2854 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2855 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2856 | OPf_WANT_SCALAR); | |
6e72f9df | 2857 | if (flags & G_KEEPERR) |
2858 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2859 | |
14dd3ad8 | 2860 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 2861 | redo_body: |
14dd3ad8 | 2862 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body), |
db36c5a1 | 2863 | (OP*)&myop, TRUE); |
14dd3ad8 | 2864 | #else |
240fcc4a JC |
2865 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2866 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2867 | TAINT_PROPER("eval_sv()"); | |
2868 | ||
14dd3ad8 GS |
2869 | JMPENV_PUSH(ret); |
2870 | #endif | |
6224f72b GS |
2871 | switch (ret) { |
2872 | case 0: | |
14dd3ad8 GS |
2873 | #ifndef PERL_FLEXIBLE_EXCEPTIONS |
2874 | redo_body: | |
2875 | call_body((OP*)&myop,TRUE); | |
2876 | #endif | |
312caa8e CS |
2877 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2878 | if (!(flags & G_KEEPERR)) | |
2a8de9e2 | 2879 | sv_setpvn(ERRSV,"",0); |
4633a7c4 | 2880 | break; |
6224f72b | 2881 | case 1: |
f86702cc | 2882 | STATUS_ALL_FAILURE; |
4633a7c4 | 2883 | /* FALL THROUGH */ |
6224f72b | 2884 | case 2: |
4633a7c4 | 2885 | /* my_exit() was called */ |
3280af22 | 2886 | PL_curstash = PL_defstash; |
4633a7c4 | 2887 | FREETMPS; |
14dd3ad8 | 2888 | JMPENV_POP; |
cc3604b1 | 2889 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2890 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2891 | my_exit_jump(); |
4633a7c4 | 2892 | /* NOTREACHED */ |
6224f72b | 2893 | case 3: |
3280af22 | 2894 | if (PL_restartop) { |
533c011a | 2895 | PL_op = PL_restartop; |
3280af22 | 2896 | PL_restartop = 0; |
312caa8e | 2897 | goto redo_body; |
4633a7c4 | 2898 | } |
3280af22 | 2899 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2900 | if (flags & G_ARRAY) |
2901 | retval = 0; | |
2902 | else { | |
2903 | retval = 1; | |
3280af22 | 2904 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2905 | } |
312caa8e | 2906 | break; |
4633a7c4 LW |
2907 | } |
2908 | ||
14dd3ad8 | 2909 | JMPENV_POP; |
4633a7c4 | 2910 | if (flags & G_DISCARD) { |
3280af22 | 2911 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2912 | retval = 0; |
2913 | FREETMPS; | |
2914 | LEAVE; | |
2915 | } | |
533c011a | 2916 | PL_op = oldop; |
4633a7c4 LW |
2917 | return retval; |
2918 | } | |
2919 | ||
954c1994 GS |
2920 | /* |
2921 | =for apidoc p||eval_pv | |
2922 | ||
2923 | Tells Perl to C<eval> the given string and return an SV* result. | |
2924 | ||
2925 | =cut | |
2926 | */ | |
2927 | ||
137443ea | 2928 | SV* |
864dbfa3 | 2929 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2930 | { |
2931 | dSP; | |
2932 | SV* sv = newSVpv(p, 0); | |
2933 | ||
864dbfa3 | 2934 | eval_sv(sv, G_SCALAR); |
137443ea | 2935 | SvREFCNT_dec(sv); |
2936 | ||
2937 | SPAGAIN; | |
2938 | sv = POPs; | |
2939 | PUTBACK; | |
2940 | ||
2d8e6c8d | 2941 | if (croak_on_error && SvTRUE(ERRSV)) { |
291a7e74 | 2942 | Perl_croak(aTHX_ SvPVx_nolen_const(ERRSV)); |
2d8e6c8d | 2943 | } |
137443ea | 2944 | |
2945 | return sv; | |
2946 | } | |
2947 | ||
4633a7c4 LW |
2948 | /* Require a module. */ |
2949 | ||
954c1994 | 2950 | /* |
ccfc67b7 JH |
2951 | =head1 Embedding Functions |
2952 | ||
954c1994 GS |
2953 | =for apidoc p||require_pv |
2954 | ||
7d3fb230 BS |
2955 | Tells Perl to C<require> the file named by the string argument. It is |
2956 | analogous to the Perl code C<eval "require '$file'">. It's even | |
68da2b4b | 2957 | implemented that way; consider using load_module instead. |
954c1994 | 2958 | |
7d3fb230 | 2959 | =cut */ |
954c1994 | 2960 | |
4633a7c4 | 2961 | void |
864dbfa3 | 2962 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2963 | { |
d3acc0f7 JP |
2964 | SV* sv; |
2965 | dSP; | |
e788e7d3 | 2966 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 | 2967 | PUTBACK; |
4c58c75a NC |
2968 | sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); |
2969 | eval_sv(sv_2mortal(sv), G_DISCARD); | |
d3acc0f7 JP |
2970 | SPAGAIN; |
2971 | POPSTACK; | |
79072805 LW |
2972 | } |
2973 | ||
79072805 | 2974 | void |
864dbfa3 | 2975 | Perl_magicname(pTHX_ char *sym, char *name, I32 namlen) |
79072805 | 2976 | { |
b977d03a | 2977 | register GV * const gv = gv_fetchpv(sym, GV_ADD, SVt_PV); |
79072805 | 2978 | |
1a9219e7 | 2979 | if (gv) |
14befaf4 | 2980 | sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen); |
79072805 LW |
2981 | } |
2982 | ||
76e3520e | 2983 | STATIC void |
c05e0e2f | 2984 | S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2985 | { |
ab821d7f | 2986 | /* This message really ought to be max 23 lines. |
75c72d73 | 2987 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2988 | |
fe20fd30 | 2989 | static const char * const usage_msg[] = { |
fb73857a | 2990 | "-0[octal] specify record separator (\\0, if no argument)", |
2991 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
cdd3a4c6 | 2992 | "-C[number/list] enables the listed Unicode features", |
1950ee41 | 2993 | "-c check syntax only (runs BEGIN and CHECK blocks)", |
aac3bd0d GS |
2994 | "-d[:debugger] run program under debugger", |
2995 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
cdd3a4c6 | 2996 | "-e program one line of program (several -e's allowed, omit programfile)", |
5d39362b | 2997 | "-f don't do $sitelib/sitecustomize.pl at startup", |
aac3bd0d GS |
2998 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
2999 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
3000 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
fb73857a | 3001 | "-l[octal] enable line ending processing, specifies line terminator", |
5332c881 AL |
3002 | "-[mM][-]module execute \"use/no module...\" before executing program", |
3003 | "-n assume \"while (<>) { ... }\" loop around program", | |
aac3bd0d GS |
3004 | "-p assume loop like -n but print line also, like sed", |
3005 | "-P run program through C preprocessor before compilation", | |
3006 | "-s enable rudimentary parsing for switches after programfile", | |
3007 | "-S look for programfile using PATH environment variable", | |
9cbc33e8 | 3008 | "-t enable tainting warnings", |
cdd3a4c6 | 3009 | "-T enable tainting checks", |
aac3bd0d | 3010 | "-u dump core after parsing program", |
fb73857a | 3011 | "-U allow unsafe operations", |
aac3bd0d GS |
3012 | "-v print version, subversion (includes VERY IMPORTANT perl info)", |
3013 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
3014 | "-w enable many useful warnings (RECOMMENDED)", | |
3c0facb2 | 3015 | "-W enable all warnings", |
fb73857a | 3016 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", |
cdd3a4c6 | 3017 | "-X disable all warnings", |
fb73857a | 3018 | "\n", |
3019 | NULL | |
3020 | }; | |
fe20fd30 | 3021 | const char * const *p = usage_msg; |
fb73857a | 3022 | |
b0e47665 GS |
3023 | PerlIO_printf(PerlIO_stdout(), |
3024 | "\nUsage: %s [switches] [--] [programfile] [arguments]", | |
3025 | name); | |
fb73857a | 3026 | while (*p) |
b0e47665 | 3027 | PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); |
4633a7c4 LW |
3028 | } |
3029 | ||
1aa6899f JH |
3030 | /* convert a string of -D options (or digits) into an int. |
3031 | * sets *s to point to the char after the options */ | |
3032 | ||
3033 | #ifdef DEBUGGING | |
3034 | int | |
3035 | Perl_get_debug_opts(pTHX_ char **s) | |
3036 | { | |
3f61fe7e NC |
3037 | return get_debug_opts_flags(s, 1); |
3038 | } | |
3039 | ||
3040 | int | |
3041 | Perl_get_debug_opts_flags(pTHX_ char **s, int flags) | |
3042 | { | |
fe20fd30 | 3043 | static const char * const usage_msgd[] = { |
137fa866 JC |
3044 | " Debugging flag values: (see also -d)", |
3045 | " p Tokenizing and parsing (with v, displays parse stack)", | |
22116afb | 3046 | " s Stack snapshots (with v, displays all stacks)", |
137fa866 JC |
3047 | " l Context (loop) stack processing", |
3048 | " t Trace execution", | |
3049 | " o Method and overloading resolution", | |
3050 | " c String/numeric conversions", | |
3051 | " P Print profiling info, preprocessor command for -P, source file input state", | |
3052 | " m Memory allocation", | |
3053 | " f Format processing", | |
3054 | " r Regular expression parsing and execution", | |
3055 | " x Syntax tree dump", | |
22116afb | 3056 | " u Tainting checks", |
137fa866 JC |
3057 | " H Hash dump -- usurps values()", |
3058 | " X Scratchpad allocation", | |
3059 | " D Cleaning up", | |
3060 | " S Thread synchronization", | |
3061 | " T Tokenising", | |
3062 | " R Include reference counts of dumped variables (eg when using -Ds)", | |
3063 | " J Do not s,t,P-debug (Jump over) opcodes within package DB", | |
3064 | " v Verbose: use in conjunction with other flags", | |
3065 | " C Copy On Write", | |
3066 | " A Consistency checks on internal structures", | |
22116afb | 3067 | " q quiet - currently only suppresses the 'EXECUTING' message", |
137fa866 JC |
3068 | NULL |
3069 | }; | |
1aa6899f JH |
3070 | int i = 0; |
3071 | if (isALPHA(**s)) { | |
3072 | /* if adding extra options, remember to update DEBUG_MASK */ | |
856b6425 | 3073 | static const char debopts[] = "psltocPmfrxu HXDSTRJvCAq"; |
1aa6899f JH |
3074 | |
3075 | for (; isALNUM(**s); (*s)++) { | |
1a9219e7 | 3076 | const char * const d = strchr(debopts,**s); |
1aa6899f JH |
3077 | if (d) |
3078 | i |= 1 << (d - debopts); | |
3079 | else if (ckWARN_d(WARN_DEBUGGING)) | |
137fa866 JC |
3080 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
3081 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
1aa6899f JH |
3082 | } |
3083 | } | |
137fa866 | 3084 | else if (isDIGIT(**s)) { |
1aa6899f JH |
3085 | i = atoi(*s); |
3086 | for (; isALNUM(**s); (*s)++) ; | |
3087 | } | |
3f61fe7e NC |
3088 | else if (flags & 1) { |
3089 | /* Give help. */ | |
f0c41690 | 3090 | const char *const *p = usage_msgd; |
137fa866 JC |
3091 | while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); |
3092 | } | |
1aa6899f JH |
3093 | # ifdef EBCDIC |
3094 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
3095 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
3096 | "-Dp not implemented on this platform\n"); | |
3097 | # endif | |
3098 | return i; | |
3099 | } | |
3100 | #endif | |
3101 | ||
79072805 LW |
3102 | /* This routine handles any switches that can be given during run */ |
3103 | ||
3104 | char * | |
864dbfa3 | 3105 | Perl_moreswitches(pTHX_ char *s) |
79072805 | 3106 | { |
f824e39a | 3107 | UV rschar; |
79072805 LW |
3108 | |
3109 | switch (*s) { | |
3110 | case '0': | |
a863c7d1 | 3111 | { |
a77f7f8b | 3112 | I32 flags = 0; |
8c18bf38 | 3113 | STRLEN numlen; |
a77f7f8b JH |
3114 | |
3115 | SvREFCNT_dec(PL_rs); | |
3116 | if (s[1] == 'x' && s[2]) { | |
8c18bf38 | 3117 | const char *e = s+=2; |
a77f7f8b JH |
3118 | U8 *tmps; |
3119 | ||
8c18bf38 AL |
3120 | while (*e) |
3121 | e++; | |
a77f7f8b JH |
3122 | numlen = e - s; |
3123 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
3124 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
3125 | if (s + numlen < e) { | |
3126 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
3127 | numlen = 0; | |
3128 | s--; | |
3129 | } | |
d7559646 | 3130 | PL_rs = newSVpvs(""); |
c43a4d73 | 3131 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
a77f7f8b JH |
3132 | tmps = (U8*)SvPVX(PL_rs); |
3133 | uvchr_to_utf8(tmps, rschar); | |
3134 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
3135 | SvUTF8_on(PL_rs); | |
3136 | } | |
3137 | else { | |
3138 | numlen = 4; | |
3139 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
3140 | if (rschar & ~((U8)~0)) | |
3141 | PL_rs = &PL_sv_undef; | |
3142 | else if (!rschar && numlen >= 2) | |
d7559646 | 3143 | PL_rs = newSVpvs(""); |
a77f7f8b JH |
3144 | else { |
3145 | char ch = (char)rschar; | |
3146 | PL_rs = newSVpvn(&ch, 1); | |
3147 | } | |
3148 | } | |
2e7fc6b0 | 3149 | sv_setsv(get_sv("/", TRUE), PL_rs); |
a77f7f8b | 3150 | return s + numlen; |
a863c7d1 | 3151 | } |
46487f74 | 3152 | case 'C': |
f8bb70a6 | 3153 | s++; |
15479b4d | 3154 | PL_unicode = parse_unicode_opts(&s); |
2f583b3c NC |
3155 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
3156 | PL_utf8cache = -1; | |
46487f74 | 3157 | return s; |
2304df62 | 3158 | case 'F': |
3280af22 | 3159 | PL_minus_F = TRUE; |
ebce5377 RGS |
3160 | PL_splitstr = ++s; |
3161 | while (*s && !isSPACE(*s)) ++s; | |
1e33ba6a | 3162 | PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr); |
2304df62 | 3163 | return s; |
79072805 | 3164 | case 'a': |
3280af22 | 3165 | PL_minus_a = TRUE; |
79072805 LW |
3166 | s++; |
3167 | return s; | |
3168 | case 'c': | |
3280af22 | 3169 | PL_minus_c = TRUE; |
79072805 LW |
3170 | s++; |
3171 | return s; | |
3172 | case 'd': | |
c8d40d35 | 3173 | forbid_setid('d', -1); |
4633a7c4 | 3174 | s++; |
67924fd2 NC |
3175 | |
3176 | /* -dt indicates to the debugger that threads will be used */ | |
3177 | if (*s == 't' && !isALNUM(s[1])) { | |
3178 | ++s; | |
3179 | my_setenv("PERL5DB_THREADED", "1"); | |
3180 | } | |
3181 | ||
70c94a19 RR |
3182 | /* The following permits -d:Mod to accepts arguments following an = |
3183 | in the fashion that -MSome::Mod does. */ | |
3184 | if (*s == ':' || *s == '=') { | |
ec6f298e | 3185 | const char *start; |
d7559646 | 3186 | SV * const sv = newSVpvs("use Devel::"); |
70c94a19 RR |
3187 | start = ++s; |
3188 | /* We now allow -d:Module=Foo,Bar */ | |
3189 | while(isALNUM(*s) || *s==':') ++s; | |
3190 | if (*s != '=') | |
3191 | sv_catpv(sv, start); | |
3192 | else { | |
3193 | sv_catpvn(sv, start, s-start); | |
c20147de JH |
3194 | /* Don't use NUL as q// delimiter here, this string goes in the |
3195 | * environment. */ | |
3196 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s); | |
70c94a19 | 3197 | } |
4633a7c4 | 3198 | s += strlen(s); |
15479b4d | 3199 | my_setenv("PERL5DB", (char *)SvPV_nolen_const(sv)); |
4633a7c4 | 3200 | } |
ed094faf | 3201 | if (!PL_perldb) { |
3280af22 | 3202 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 3203 | init_debugger(); |
ed094faf | 3204 | } |
79072805 LW |
3205 | return s; |
3206 | case 'D': | |
0453d815 | 3207 | { |
79072805 | 3208 | #ifdef DEBUGGING |
c8d40d35 | 3209 | forbid_setid('D', -1); |
1aa6899f | 3210 | s++; |
0473add9 | 3211 | PL_debug = get_debug_opts_flags( &s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 3212 | #else /* !DEBUGGING */ |
0453d815 | 3213 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 3214 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
137fa866 | 3215 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 3216 | for (s++; isALNUM(*s); s++) ; |
79072805 | 3217 | #endif |
79072805 | 3218 | return s; |
0453d815 | 3219 | } |
4633a7c4 | 3220 | case 'h': |
ac27b0f5 | 3221 | usage(PL_origargv[0]); |
7ca617d0 | 3222 | my_exit(0); |
79072805 | 3223 | case 'i': |
4c58c75a | 3224 | Safefree(PL_inplace); |
c030f24b GH |
3225 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
3226 | if (*(s+1) == '\0') { | |
d7559646 | 3227 | PL_inplace = savepvs(".bak"); |
c030f24b GH |
3228 | return s+1; |
3229 | } | |
3230 | #endif /* __CYGWIN__ */ | |
a28a866d | 3231 | { |
43b2f713 | 3232 | const char * const start = ++s; |
a28a866d NC |
3233 | while (*s && !isSPACE(*s)) |
3234 | ++s; | |
3235 | ||
3236 | PL_inplace = savepvn(start, s - start); | |
3237 | } | |
7b8d334a | 3238 | if (*s) { |
a28a866d | 3239 | ++s; |
7b8d334a | 3240 | if (*s == '-') /* Additional switches on #! line. */ |
a28a866d | 3241 | s++; |
7b8d334a | 3242 | } |
fb73857a | 3243 | return s; |
4e49a025 | 3244 | case 'I': /* -I handled both here and in parse_body() */ |
c8d40d35 | 3245 | forbid_setid('I', -1); |
fb73857a | 3246 | ++s; |
3247 | while (*s && isSPACE(*s)) | |
3248 | ++s; | |
3249 | if (*s) { | |
774d564b | 3250 | char *e, *p; |
0df16ed7 GS |
3251 | p = s; |
3252 | /* ignore trailing spaces (possibly followed by other switches) */ | |
3253 | do { | |
3254 | for (e = p; *e && !isSPACE(*e); e++) ; | |
3255 | p = e; | |
3256 | while (isSPACE(*p)) | |
3257 | p++; | |
3258 | } while (*p && *p != '-'); | |
3259 | e = savepvn(s, e-s); | |
63fe74dd | 3260 | incpush(e, TRUE, TRUE, FALSE, FALSE); |
0df16ed7 GS |
3261 | Safefree(e); |
3262 | s = p; | |
3263 | if (*s == '-') | |
3264 | s++; | |
79072805 LW |
3265 | } |
3266 | else | |
a67e862a | 3267 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 3268 | return s; |
79072805 | 3269 | case 'l': |
3280af22 | 3270 | PL_minus_l = TRUE; |
79072805 | 3271 | s++; |
7889fe52 NIS |
3272 | if (PL_ors_sv) { |
3273 | SvREFCNT_dec(PL_ors_sv); | |
0e2d6244 | 3274 | PL_ors_sv = NULL; |
7889fe52 | 3275 | } |
79072805 | 3276 | if (isDIGIT(*s)) { |
53305cf1 | 3277 | I32 flags = 0; |
8c18bf38 | 3278 | STRLEN numlen; |
d7559646 | 3279 | PL_ors_sv = newSVpvs("\n"); |
53305cf1 NC |
3280 | numlen = 3 + (*s == '0'); |
3281 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3282 | s += numlen; |
3283 | } | |
3284 | else { | |
8bfdd7d9 | 3285 | if (RsPARA(PL_rs)) { |
d7559646 | 3286 | PL_ors_sv = newSVpvs("\n\n"); |
7889fe52 NIS |
3287 | } |
3288 | else { | |
8bfdd7d9 | 3289 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3290 | } |
79072805 LW |
3291 | } |
3292 | return s; | |
1a30305b | 3293 | case 'M': |
c8d40d35 | 3294 | forbid_setid('M', -1); /* XXX ? */ |
1a30305b | 3295 | /* FALL THROUGH */ |
3296 | case 'm': | |
c8d40d35 | 3297 | forbid_setid('m', -1); /* XXX ? */ |
1a30305b | 3298 | if (*++s) { |
a5f75d66 | 3299 | char *start; |
11343788 | 3300 | SV *sv; |
c05e0e2f | 3301 | const char *use = "use "; |
a5f75d66 | 3302 | /* -M-foo == 'no foo' */ |
4c58c75a NC |
3303 | /* Leading space on " no " is deliberate, to make both |
3304 | possibilities the same length. */ | |
3305 | if (*s == '-') { use = " no "; ++s; } | |
3306 | sv = newSVpvn(use,4); | |
a5f75d66 | 3307 | start = s; |
1a30305b | 3308 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 3309 | while(isALNUM(*s) || *s==':') ++s; |
3310 | if (*s != '=') { | |
11343788 | 3311 | sv_catpv(sv, start); |
c07a80fd | 3312 | if (*(start-1) == 'm') { |
3313 | if (*s != '\0') | |
cea2e8a9 | 3314 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
d7559646 | 3315 | sv_catpvs( sv, " ()"); |
c07a80fd | 3316 | } |
3317 | } else { | |
6df41af2 | 3318 | if (s == start) |
be98fb35 GS |
3319 | Perl_croak(aTHX_ "Module name required with -%c option", |
3320 | s[-1]); | |
11343788 | 3321 | sv_catpvn(sv, start, s-start); |
d7559646 AL |
3322 | sv_catpvs(sv, " split(/,/,q"); |
3323 | sv_catpvs(sv, "\0"); /* Use NUL as q//-delimiter. */ | |
11343788 | 3324 | sv_catpv(sv, ++s); |
d7559646 | 3325 | sv_catpvs(sv, "\0)"); |
c07a80fd | 3326 | } |
1a30305b | 3327 | s += strlen(s); |
5c831c24 | 3328 | if (!PL_preambleav) |
3280af22 NIS |
3329 | PL_preambleav = newAV(); |
3330 | av_push(PL_preambleav, sv); | |
1a30305b | 3331 | } |
3332 | else | |
26fc481e | 3333 | Perl_croak(aTHX_ "Missing argument to -%c", *(s-1)); |
1a30305b | 3334 | return s; |
79072805 | 3335 | case 'n': |
3280af22 | 3336 | PL_minus_n = TRUE; |
79072805 LW |
3337 | s++; |
3338 | return s; | |
3339 | case 'p': | |
3280af22 | 3340 | PL_minus_p = TRUE; |
79072805 LW |
3341 | s++; |
3342 | return s; | |
3343 | case 's': | |
c8d40d35 | 3344 | forbid_setid('s', -1); |
3280af22 | 3345 | PL_doswitches = TRUE; |
79072805 LW |
3346 | s++; |
3347 | return s; | |
6537fe72 MS |
3348 | case 't': |
3349 | if (!PL_tainting) | |
26776375 | 3350 | TOO_LATE_FOR('t'); |
6537fe72 MS |
3351 | s++; |
3352 | return s; | |
463ee0b2 | 3353 | case 'T': |
3280af22 | 3354 | if (!PL_tainting) |
26776375 | 3355 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
3356 | s++; |
3357 | return s; | |
79072805 | 3358 | case 'u': |
bf4acbe4 GS |
3359 | #ifdef MACOS_TRADITIONAL |
3360 | Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); | |
3361 | #endif | |
3280af22 | 3362 | PL_do_undump = TRUE; |
79072805 LW |
3363 | s++; |
3364 | return s; | |
3365 | case 'U': | |
3280af22 | 3366 | PL_unsafe = TRUE; |
79072805 LW |
3367 | s++; |
3368 | return s; | |
3369 | case 'v': | |
8e9464f1 | 3370 | #if !defined(DGUX) |
b0e47665 | 3371 | PerlIO_printf(PerlIO_stdout(), |
d2560b70 | 3372 | Perl_form(aTHX_ "\nThis is perl, v%"VDf" built for %s", |
b0e47665 | 3373 | PL_patchlevel, ARCHNAME)); |
8e9464f1 JH |
3374 | #else /* DGUX */ |
3375 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
3376 | PerlIO_printf(PerlIO_stdout(), | |
3377 | Perl_form(aTHX_ "\nThis is perl, version %vd\n", PL_patchlevel)); | |
3378 | PerlIO_printf(PerlIO_stdout(), | |
3379 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
3380 | OSNAME, __DATE__, __TIME__)); | |
3381 | PerlIO_printf(PerlIO_stdout(), | |
3382 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 3383 | OSVERS)); |
8e9464f1 JH |
3384 | #endif /* !DGUX */ |
3385 | ||
fb73857a | 3386 | #if defined(LOCAL_PATCH_COUNT) |
3387 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
3388 | PerlIO_printf(PerlIO_stdout(), |
3389 | "\n(with %d registered patch%s, " | |
3390 | "see perl -V for more detail)", | |
9f01e09a | 3391 | LOCAL_PATCH_COUNT, |
b0e47665 | 3392 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 | 3393 | #endif |
1a30305b | 3394 | |
b0e47665 | 3395 | PerlIO_printf(PerlIO_stdout(), |
fc64cf4d | 3396 | "\n\nCopyright 1987-2006, Larry Wall\n"); |
eae9c151 JH |
3397 | #ifdef MACOS_TRADITIONAL |
3398 | PerlIO_printf(PerlIO_stdout(), | |
be3c0a43 | 3399 | "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" |
03765510 | 3400 | "maintained by Chris Nandor\n"); |
eae9c151 | 3401 | #endif |
79072805 | 3402 | #ifdef MSDOS |
b0e47665 GS |
3403 | PerlIO_printf(PerlIO_stdout(), |
3404 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 3405 | #endif |
3406 | #ifdef DJGPP | |
b0e47665 GS |
3407 | PerlIO_printf(PerlIO_stdout(), |
3408 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
3409 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 3410 | #endif |
79072805 | 3411 | #ifdef OS2 |
b0e47665 GS |
3412 | PerlIO_printf(PerlIO_stdout(), |
3413 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 3414 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 3415 | #endif |
79072805 | 3416 | #ifdef atarist |
b0e47665 GS |
3417 | PerlIO_printf(PerlIO_stdout(), |
3418 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 3419 | #endif |
a3f9223b | 3420 | #ifdef __BEOS__ |
b0e47665 GS |
3421 | PerlIO_printf(PerlIO_stdout(), |
3422 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 3423 | #endif |
1d84e8df | 3424 | #ifdef MPE |
b0e47665 | 3425 | PerlIO_printf(PerlIO_stdout(), |
eafda17a | 3426 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 3427 | #endif |
9d116dd7 | 3428 | #ifdef OEMVS |
b0e47665 GS |
3429 | PerlIO_printf(PerlIO_stdout(), |
3430 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 3431 | #endif |
495c5fdc | 3432 | #ifdef __VOS__ |
b0e47665 | 3433 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 3434 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 3435 | #endif |
092bebab | 3436 | #ifdef __OPEN_VM |
b0e47665 GS |
3437 | PerlIO_printf(PerlIO_stdout(), |
3438 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 3439 | #endif |
a1a0e61e | 3440 | #ifdef POSIX_BC |
b0e47665 GS |
3441 | PerlIO_printf(PerlIO_stdout(), |
3442 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 3443 | #endif |
61ae2fbf | 3444 | #ifdef __MINT__ |
b0e47665 GS |
3445 | PerlIO_printf(PerlIO_stdout(), |
3446 | "MiNT port by Guido Flohr, 1997-1999\n"); | |
61ae2fbf | 3447 | #endif |
f83d2536 | 3448 | #ifdef EPOC |
b0e47665 | 3449 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 3450 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 3451 | #endif |
e1caacb4 | 3452 | #ifdef UNDER_CE |
511118e1 JH |
3453 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
3454 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
3455 | wce_hitreturn(); |
3456 | #endif | |
baed7233 DL |
3457 | #ifdef BINARY_BUILD_NOTICE |
3458 | BINARY_BUILD_NOTICE; | |
3459 | #endif | |
b0e47665 GS |
3460 | PerlIO_printf(PerlIO_stdout(), |
3461 | "\n\ | |
79072805 | 3462 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 3463 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 | 3464 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
5332c881 | 3465 | this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\ |
22116afb | 3466 | Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n"); |
7ca617d0 | 3467 | my_exit(0); |
79072805 | 3468 | case 'w': |
599cee73 | 3469 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
ac27b0f5 | 3470 | PL_dowarn |= G_WARN_ON; |
599cee73 PM |
3471 | s++; |
3472 | return s; | |
3473 | case 'W': | |
ac27b0f5 | 3474 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d MS |
3475 | if (!specialWARN(PL_compiling.cop_warnings)) |
3476 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 3477 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
3478 | s++; |
3479 | return s; | |
3480 | case 'X': | |
ac27b0f5 | 3481 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d MS |
3482 | if (!specialWARN(PL_compiling.cop_warnings)) |
3483 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 3484 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
3485 | s++; |
3486 | return s; | |
a0d0e21e | 3487 | case '*': |
79072805 LW |
3488 | case ' ': |
3489 | if (s[1] == '-') /* Additional switches on #! line. */ | |
3490 | return s+2; | |
3491 | break; | |
a0d0e21e | 3492 | case '-': |
79072805 | 3493 | case 0: |
51882d45 | 3494 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
3495 | case '\r': |
3496 | #endif | |
79072805 LW |
3497 | case '\n': |
3498 | case '\t': | |
3499 | break; | |
aa689395 | 3500 | #ifdef ALTERNATE_SHEBANG |
3501 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3502 | break; | |
3503 | #endif | |
a0d0e21e | 3504 | case 'P': |
3280af22 | 3505 | if (PL_preprocess) |
a0d0e21e LW |
3506 | return s+1; |
3507 | /* FALL THROUGH */ | |
79072805 | 3508 | default: |
cea2e8a9 | 3509 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 | 3510 | } |
0e2d6244 | 3511 | return NULL; |
79072805 LW |
3512 | } |
3513 | ||
3514 | /* compliments of Tom Christiansen */ | |
3515 | ||
3516 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 3517 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
3518 | |
3519 | void | |
864dbfa3 | 3520 | Perl_my_unexec(pTHX) |
79072805 LW |
3521 | { |
3522 | #ifdef UNEXEC | |
be2d5e07 AL |
3523 | SV * prog = newSVpv(BIN_EXP, 0); |
3524 | SV * file = newSVpv(PL_origfilename, 0); | |
ee580363 | 3525 | int status = 1; |
79072805 LW |
3526 | extern int etext; |
3527 | ||
d7559646 AL |
3528 | sv_catpvs(prog, "/perl"); |
3529 | sv_catpvs(file, ".perldump"); | |
79072805 | 3530 | |
ee580363 GS |
3531 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
3532 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 3533 | PerlProc_exit(status); |
79072805 | 3534 | #else |
a5f75d66 AD |
3535 | # ifdef VMS |
3536 | # include <lib$routines.h> | |
3537 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
d1766b33 NC |
3538 | # elif defined(WIN32) || defined(__CYGWIN__) |
3539 | Perl_croak(aTHX_ "dump is not supported"); | |
aa689395 | 3540 | # else |
79072805 | 3541 | ABORT(); /* for use with undump */ |
aa689395 | 3542 | # endif |
a5f75d66 | 3543 | #endif |
79072805 LW |
3544 | } |
3545 | ||
cb68f92d GS |
3546 | /* initialize curinterp */ |
3547 | STATIC void | |
cea2e8a9 | 3548 | S_init_interp(pTHX) |
cb68f92d GS |
3549 | { |
3550 | ||
acfe0abc GS |
3551 | #ifdef MULTIPLICITY |
3552 | # define PERLVAR(var,type) | |
3553 | # define PERLVARA(var,n,type) | |
3554 | # if defined(PERL_IMPLICIT_CONTEXT) | |
3555 | # if defined(USE_5005THREADS) | |
3556 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; | |
fe20fd30 | 3557 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; |
acfe0abc GS |
3558 | # else /* !USE_5005THREADS */ |
3559 | # define PERLVARI(var,type,init) aTHX->var = init; | |
3560 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
3561 | # endif /* USE_5005THREADS */ | |
3967c732 | 3562 | # else |
acfe0abc GS |
3563 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
3564 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 3565 | # endif |
acfe0abc GS |
3566 | # include "intrpvar.h" |
3567 | # ifndef USE_5005THREADS | |
3568 | # include "thrdvar.h" | |
3569 | # endif | |
3570 | # undef PERLVAR | |
3571 | # undef PERLVARA | |
3572 | # undef PERLVARI | |
3573 | # undef PERLVARIC | |
3574 | #else | |
3575 | # define PERLVAR(var,type) | |
3576 | # define PERLVARA(var,n,type) | |
3577 | # define PERLVARI(var,type,init) PL_##var = init; | |
3578 | # define PERLVARIC(var,type,init) PL_##var = init; | |
3579 | # include "intrpvar.h" | |
3580 | # ifndef USE_5005THREADS | |
3581 | # include "thrdvar.h" | |
3582 | # endif | |
3583 | # undef PERLVAR | |
3584 | # undef PERLVARA | |
3585 | # undef PERLVARI | |
3586 | # undef PERLVARIC | |
cb68f92d GS |
3587 | #endif |
3588 | ||
cb68f92d GS |
3589 | } |
3590 | ||
76e3520e | 3591 | STATIC void |
cea2e8a9 | 3592 | S_init_main_stash(pTHX) |
79072805 | 3593 | { |
463ee0b2 | 3594 | GV *gv; |
6e72f9df | 3595 | |
3280af22 | 3596 | PL_curstash = PL_defstash = newHV(); |
4b6d7cf0 NC |
3597 | /* We know that the string "main" will be in the global shared string |
3598 | table, so it's a small saving to use it rather than allocate another | |
3599 | 8 bytes. */ | |
d7559646 | 3600 | PL_curstname = newSVpvs_share("main"); |
b977d03a | 3601 | gv = gv_fetchpvs("main::", GV_ADD|GV_NOTQUAL, SVt_PVHV); |
4b6d7cf0 NC |
3602 | /* If we hadn't caused another reference to "main" to be in the shared |
3603 | string table above, then it would be worth reordering these two, | |
3604 | because otherwise all we do is delete "main" from it as a consequence | |
3605 | of the SvREFCNT_dec, only to add it again with hv_name_set */ | |
adbc6bb1 | 3606 | SvREFCNT_dec(GvHV(gv)); |
4b6d7cf0 | 3607 | hv_name_set(PL_defstash, "main", 4, 0); |
be2d5e07 | 3608 | GvHV(gv) = (HV*)SvREFCNT_inc_simple(PL_defstash); |
463ee0b2 | 3609 | SvREADONLY_on(gv); |
b977d03a NC |
3610 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL, |
3611 | SVt_PVAV))); | |
d64ae468 | 3612 | SvREFCNT_inc(PL_incgv); /* Don't allow it to be freed */ |
3280af22 | 3613 | GvMULTI_on(PL_incgv); |
b977d03a | 3614 | PL_hintgv = gv_fetchpvs("\010", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^H */ |
3280af22 | 3615 | GvMULTI_on(PL_hintgv); |
b977d03a | 3616 | PL_defgv = gv_fetchpvs("_", GV_ADD|GV_NOTQUAL, SVt_PVAV); |
d64ae468 | 3617 | SvREFCNT_inc(PL_defgv); |
b977d03a | 3618 | PL_errgv = gv_HVadd(gv_fetchpvs("@", GV_ADD|GV_NOTQUAL, SVt_PV)); |
d64ae468 | 3619 | SvREFCNT_inc(PL_errgv); |
3280af22 | 3620 | GvMULTI_on(PL_errgv); |
b977d03a | 3621 | PL_replgv = gv_fetchpvs("\022", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^R */ |
3280af22 | 3622 | GvMULTI_on(PL_replgv); |
cea2e8a9 | 3623 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
83fd6193 NC |
3624 | #ifdef PERL_DONT_CREATE_GVSV |
3625 | gv_SVadd(PL_errgv); | |
3626 | #endif | |
38a03e6e MB |
3627 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
3628 | sv_setpvn(ERRSV, "", 0); | |
3280af22 | 3629 | PL_curstash = PL_defstash; |
11faa288 | 3630 | CopSTASH_set(&PL_compiling, PL_defstash); |
b977d03a NC |
3631 | PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV)); |
3632 | PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI, | |
3633 | SVt_PVHV)); | |
92d29cee | 3634 | PL_nullstash = GvHV(gv_fetchpv("<none>::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 | 3635 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 3636 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
3637 | } |
3638 | ||
c8d40d35 NC |
3639 | STATIC int |
3640 | S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv, | |
3641 | int *suidscript) | |
79072805 | 3642 | { |
23c73cf5 | 3643 | #ifndef IAMSUID |
c05e0e2f AL |
3644 | const char *quote; |
3645 | const char *code; | |
3646 | const char *cpp_discard_flag; | |
3647 | const char *perl; | |
23c73cf5 | 3648 | #endif |
c8d40d35 | 3649 | int fdscript = -1; |
1b24ed4b | 3650 | |
c8d40d35 | 3651 | *suidscript = -1; |
79072805 | 3652 | |
3280af22 | 3653 | if (PL_e_script) { |
d7559646 | 3654 | PL_origfilename = savepvs("-e"); |
96436eeb | 3655 | } |
6c4ab083 GS |
3656 | else { |
3657 | /* if find_script() returns, it returns a malloc()-ed value */ | |
15479b4d | 3658 | scriptname = PL_origfilename = find_script((char *)scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
3659 | |
3660 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
c05e0e2f | 3661 | const char *s = scriptname + 8; |
c8d40d35 | 3662 | fdscript = atoi(s); |
6c4ab083 GS |
3663 | while (isDIGIT(*s)) |
3664 | s++; | |
3665 | if (*s) { | |
23c73cf5 PS |
3666 | /* PSz 18 Feb 04 |
3667 | * Tell apart "normal" usage of fdscript, e.g. | |
3668 | * with bash on FreeBSD: | |
3669 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
707d3842 | 3670 | * from usage in suidperl. |
23c73cf5 PS |
3671 | * Does any "normal" usage leave garbage after the number??? |
3672 | * Is it a mistake to use a similar /dev/fd/ construct for | |
707d3842 | 3673 | * suidperl? |
23c73cf5 | 3674 | */ |
c8d40d35 | 3675 | *suidscript = 1; |
23c73cf5 PS |
3676 | /* PSz 20 Feb 04 |
3677 | * Be supersafe and do some sanity-checks. | |
3678 | * Still, can we be sure we got the right thing? | |
3679 | */ | |
3680 | if (*s != '/') { | |
3681 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3682 | } | |
3683 | if (! *(s+1)) { | |
3684 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3685 | } | |
6c4ab083 | 3686 | scriptname = savepv(s + 1); |
3280af22 | 3687 | Safefree(PL_origfilename); |
0473add9 | 3688 | PL_origfilename = (char *)scriptname; |
6c4ab083 GS |
3689 | } |
3690 | } | |
3691 | } | |
3692 | ||
05ec9bb3 | 3693 | CopFILE_free(PL_curcop); |
57843af0 | 3694 | CopFILE_set(PL_curcop, PL_origfilename); |
29652248 | 3695 | if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') |
0473add9 | 3696 | scriptname = (char *)""; |
c8d40d35 NC |
3697 | if (fdscript >= 0) { |
3698 | PL_rsfp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE); | |
1b24ed4b MS |
3699 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3700 | if (PL_rsfp) | |
3701 | /* ensure close-on-exec */ | |
3702 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3703 | # endif | |
96436eeb | 3704 | } |
23c73cf5 PS |
3705 | #ifdef IAMSUID |
3706 | else { | |
18b810ca NC |
3707 | Perl_croak(aTHX_ "sperl needs fd script\n" |
3708 | "You should not call sperl directly; do you need to " | |
3709 | "change a #! line\nfrom sperl to perl?\n"); | |
3710 | ||
23c73cf5 PS |
3711 | /* PSz 11 Nov 03 |
3712 | * Do not open (or do other fancy stuff) while setuid. | |
707d3842 NC |
3713 | * Perl does the open, and hands script to suidperl on a fd; |
3714 | * suidperl only does some checks, sets up UIDs and re-execs | |
23c73cf5 PS |
3715 | * perl with that fd as it has always done. |
3716 | */ | |
3717 | } | |
c8d40d35 | 3718 | if (*suidscript != 1) { |
707d3842 | 3719 | Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); |
23c73cf5 PS |
3720 | } |
3721 | #else /* IAMSUID */ | |
3280af22 | 3722 | else if (PL_preprocess) { |
1a9219e7 | 3723 | const char * const cpp_cfg = CPPSTDIN; |
d7559646 | 3724 | SV * const cpp = newSVpvs(""); |
133cdda0 | 3725 | SV * const cmd = newSV(0); |
46fc3d4c | 3726 | |
75a5c1c6 JH |
3727 | if (cpp_cfg[0] == 0) /* PERL_MICRO? */ |
3728 | Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined"); | |
46fc3d4c | 3729 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 | 3730 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 3731 | sv_catpv(cpp, cpp_cfg); |
79072805 | 3732 | |
1b24ed4b | 3733 | # ifndef VMS |
d7559646 | 3734 | sv_catpvs(sv, "-I"); |
1b24ed4b MS |
3735 | sv_catpv(sv,PRIVLIB_EXP); |
3736 | # endif | |
46fc3d4c | 3737 | |
14953ddc MB |
3738 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3739 | "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n", | |
71a0dd65 NC |
3740 | scriptname, SvPVX_const (cpp), SvPVX_const (sv), |
3741 | CPPMINUS)); | |
1b24ed4b MS |
3742 | |
3743 | # if defined(MSDOS) || defined(WIN32) || defined(VMS) | |
3744 | quote = "\""; | |
3745 | # else | |
3746 | quote = "'"; | |
3747 | # endif | |
3748 | ||
3749 | # ifdef VMS | |
3750 | cpp_discard_flag = ""; | |
3751 | # else | |
3752 | cpp_discard_flag = "-C"; | |
3753 | # endif | |
3754 | ||
3755 | # ifdef OS2 | |
3756 | perl = os2_execname(aTHX); | |
3757 | # else | |
3758 | perl = PL_origargv[0]; | |
3759 | # endif | |
3760 | ||
3761 | ||
3762 | /* This strips off Perl comments which might interfere with | |
62375a60 NIS |
3763 | the C pre-processor, including #!. #line directives are |
3764 | deliberately stripped to avoid confusion with Perl's version | |
1b24ed4b MS |
3765 | of #line. FWP played some golf with it so it will fit |
3766 | into VMS's 255 character buffer. | |
3767 | */ | |
3768 | if( PL_doextract ) | |
3769 | code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3770 | else | |
3771 | code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3772 | ||
3773 | Perl_sv_setpvf(aTHX_ cmd, "\ | |
3774 | %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s", | |
f2139bd3 JH |
3775 | perl, quote, code, quote, scriptname, (void*)cpp, |
3776 | cpp_discard_flag, (void*)sv, CPPMINUS); | |
1b24ed4b | 3777 | |
3280af22 | 3778 | PL_doextract = FALSE; |
0a6c758d | 3779 | |
62375a60 NIS |
3780 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3781 | "PL_preprocess: cmd=\"%s\"\n", | |
71a0dd65 | 3782 | SvPVX_const(cmd))); |
0a6c758d | 3783 | |
71a0dd65 | 3784 | PL_rsfp = PerlProc_popen((char *)SvPVX_const(cmd), (char *)"r"); |
46fc3d4c | 3785 | SvREFCNT_dec(cmd); |
3786 | SvREFCNT_dec(cpp); | |
79072805 LW |
3787 | } |
3788 | else if (!*scriptname) { | |
c8d40d35 | 3789 | forbid_setid(0, *suidscript); |
3280af22 | 3790 | PL_rsfp = PerlIO_stdin(); |
79072805 | 3791 | } |
96436eeb | 3792 | else { |
3280af22 | 3793 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
1b24ed4b MS |
3794 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3795 | if (PL_rsfp) | |
3796 | /* ensure close-on-exec */ | |
3797 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3798 | # endif | |
96436eeb | 3799 | } |
23c73cf5 | 3800 | #endif /* IAMSUID */ |
3280af22 | 3801 | if (!PL_rsfp) { |
137fa866 | 3802 | /* PSz 16 Sep 03 Keep neat error message */ |
4cd59068 NC |
3803 | if (PL_e_script) |
3804 | Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno)); | |
3805 | else | |
3806 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", | |
3807 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3808 | } |
c8d40d35 | 3809 | return fdscript; |
79072805 | 3810 | } |
8d063cd8 | 3811 | |
7b89560d JH |
3812 | /* Mention |
3813 | * I_SYSSTATVFS HAS_FSTATVFS | |
3814 | * I_SYSMOUNT | |
c890dc6c | 3815 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3816 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3817 | * here so that metaconfig picks them up. */ | |
3818 | ||
104d25b7 | 3819 | #ifdef IAMSUID |
864dbfa3 | 3820 | STATIC int |
e688b231 | 3821 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 3822 | { |
23c73cf5 PS |
3823 | /* PSz 27 Feb 04 |
3824 | * We used to do this as "plain" user (after swapping UIDs with setreuid); | |
3825 | * but is needed also on machines without setreuid. | |
3826 | * Seems safe enough to run as root. | |
3827 | */ | |
0545a864 JH |
3828 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
3829 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
23c73cf5 PS |
3830 | /* PSz 12 Nov 03 |
3831 | * Need to check noexec also: nosuid might not be set, the average | |
3832 | * sysadmin would say that nosuid is irrelevant once he sets noexec. | |
3833 | */ | |
3834 | int on_noexec = 0; /* the fd is on a noexec fs */ | |
3835 | ||
104d25b7 | 3836 | /* |
ad27e871 | 3837 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 3838 | * fstatvfs() is UNIX98. |
0545a864 | 3839 | * fstatfs() is 4.3 BSD. |
ad27e871 | 3840 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
3841 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
3842 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
3843 | */ |
3844 | ||
6439433f JH |
3845 | #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ |
3846 | ||
3847 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3848 | defined(HAS_FSTATVFS) | |
3849 | # define FD_ON_NOSUID_CHECK_OKAY | |
104d25b7 | 3850 | struct statvfs stfs; |
6439433f | 3851 | |
104d25b7 JH |
3852 | check_okay = fstatvfs(fd, &stfs) == 0; |
3853 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
23c73cf5 PS |
3854 | #ifdef ST_NOEXEC |
3855 | /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented | |
3856 | on platforms where it is present. */ | |
3857 | on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); | |
3858 | #endif | |
6439433f | 3859 | # endif /* fstatvfs */ |
ac27b0f5 | 3860 | |
6439433f JH |
3861 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ |
3862 | defined(PERL_MOUNT_NOSUID) && \ | |
23c73cf5 | 3863 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3864 | defined(HAS_FSTATFS) && \ |
3865 | defined(HAS_STRUCT_STATFS) && \ | |
3866 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
3867 | # define FD_ON_NOSUID_CHECK_OKAY | |
e688b231 | 3868 | struct statfs stfs; |
6439433f | 3869 | |
104d25b7 | 3870 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 3871 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
23c73cf5 | 3872 | on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); |
6439433f JH |
3873 | # endif /* fstatfs */ |
3874 | ||
3875 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3876 | defined(PERL_MOUNT_NOSUID) && \ | |
23c73cf5 | 3877 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3878 | defined(HAS_FSTAT) && \ |
3879 | defined(HAS_USTAT) && \ | |
3880 | defined(HAS_GETMNT) && \ | |
3881 | defined(HAS_STRUCT_FS_DATA) && \ | |
3882 | defined(NOSTAT_ONE) | |
3883 | # define FD_ON_NOSUID_CHECK_OKAY | |
c623ac67 | 3884 | Stat_t fdst; |
6439433f | 3885 | |
0545a864 | 3886 | if (fstat(fd, &fdst) == 0) { |
6439433f JH |
3887 | struct ustat us; |
3888 | if (ustat(fdst.st_dev, &us) == 0) { | |
3889 | struct fs_data fsd; | |
3890 | /* NOSTAT_ONE here because we're not examining fields which | |
3891 | * vary between that case and STAT_ONE. */ | |
ad27e871 | 3892 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { |
6439433f JH |
3893 | size_t cmplen = sizeof(us.f_fname); |
3894 | if (sizeof(fsd.fd_req.path) < cmplen) | |
3895 | cmplen = sizeof(fsd.fd_req.path); | |
3896 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
3897 | fdst.st_dev == fsd.fd_req.dev) { | |
3f3939a9 NC |
3898 | check_okay = 1; |
3899 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
3900 | on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; | |
6439433f JH |
3901 | } |
3902 | } | |
3903 | } | |
0545a864 | 3904 | } |
6439433f JH |
3905 | # endif /* fstat+ustat+getmnt */ |
3906 | ||
3907 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3908 | defined(HAS_GETMNTENT) && \ | |
3909 | defined(HAS_HASMNTOPT) && \ | |
23c73cf5 PS |
3910 | defined(MNTOPT_NOSUID) && \ |
3911 | defined(MNTOPT_NOEXEC) | |
6439433f JH |
3912 | # define FD_ON_NOSUID_CHECK_OKAY |
3913 | FILE *mtab = fopen("/etc/mtab", "r"); | |
3914 | struct mntent *entry; | |
c623ac67 | 3915 | Stat_t stb, fsb; |
104d25b7 JH |
3916 | |
3917 | if (mtab && (fstat(fd, &stb) == 0)) { | |
6439433f JH |
3918 | while (entry = getmntent(mtab)) { |
3919 | if (stat(entry->mnt_dir, &fsb) == 0 | |
3920 | && fsb.st_dev == stb.st_dev) | |
3921 | { | |
3922 | /* found the filesystem */ | |
3923 | check_okay = 1; | |
3924 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
3925 | on_nosuid = 1; | |
23c73cf5 PS |
3926 | if (hasmntopt(entry, MNTOPT_NOEXEC)) |
3927 | on_noexec = 1; | |
6439433f JH |
3928 | break; |
3929 | } /* A single fs may well fail its stat(). */ | |
3930 | } | |
104d25b7 JH |
3931 | } |
3932 | if (mtab) | |
6439433f JH |
3933 | fclose(mtab); |
3934 | # endif /* getmntent+hasmntopt */ | |
0545a864 | 3935 | |
ac27b0f5 | 3936 | if (!check_okay) |
23c73cf5 PS |
3937 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); |
3938 | if (on_nosuid) | |
3939 | Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); | |
3940 | if (on_noexec) | |
3941 | Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); | |
3942 | return ((!check_okay) || on_nosuid || on_noexec); | |
104d25b7 JH |
3943 | } |
3944 | #endif /* IAMSUID */ | |
3945 | ||
76e3520e | 3946 | STATIC void |
c8d40d35 NC |
3947 | S_validate_suid(pTHX_ const char *validarg, const char *scriptname, |
3948 | int fdscript, int suidscript) | |
79072805 | 3949 | { |
155aba94 | 3950 | #ifdef IAMSUID |
23c73cf5 PS |
3951 | /* int which; */ |
3952 | #endif /* IAMSUID */ | |
96436eeb | 3953 | |
13281fa4 LW |
3954 | /* do we need to emulate setuid on scripts? */ |
3955 | ||
3956 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
3957 | * in the kernel because of a security problem. Merely defining DOSUID | |
3958 | * in perl will not fix that problem, but if you have disabled setuid | |
3959 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
3960 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
cc5f7b51 | 3961 | * root version must be called suidperl or sperlN.NNN. If regular perl |
27e2fb84 LW |
3962 | * discovers that it has opened a setuid script, it calls suidperl with |
3963 | * the same argv that it had. If suidperl finds that the script it has | |
3964 | * just opened is NOT setuid root, it sets the effective uid back to the | |
3965 | * uid. We don't just make perl setuid root because that loses the | |
3966 | * effective uid we had before invoking perl, if it was different from the | |
3967 | * uid. | |
23c73cf5 PS |
3968 | * PSz 27 Feb 04 |
3969 | * Description/comments above do not match current workings: | |
cc5f7b51 | 3970 | * suidperl must be hardlinked to sperlN.NNN (that is what we exec); |
707d3842 NC |
3971 | * suidperl called with script open and name changed to /dev/fd/N/X; |
3972 | * suidperl croaks if script is not setuid; | |
23c73cf5 PS |
3973 | * making perl setuid would be a huge security risk (and yes, that |
3974 | * would lose any euid we might have had). | |
13281fa4 | 3975 | * |
707d3842 NC |
3976 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must |
3977 | * be defined in suidperl only. suidperl must be setuid root. The | |
13281fa4 LW |
3978 | * Configure script will set this up for you if you want it. |
3979 | */ | |
a687059c | 3980 | |
13281fa4 | 3981 | #ifdef DOSUID |
db1c9db1 | 3982 | const char *s, *s2; |
a0d0e21e | 3983 | |
b28d0864 | 3984 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 3985 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
23c73cf5 | 3986 | if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 3987 | I32 len; |
db1c9db1 | 3988 | const char *linestr; |
aae6d3c0 | 3989 | const char *s_end; |
13281fa4 | 3990 | |
a687059c | 3991 | #ifdef IAMSUID |
c8d40d35 | 3992 | if (fdscript < 0 || suidscript != 1) |
cc5f7b51 | 3993 | Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ |
23c73cf5 | 3994 | /* PSz 11 Nov 03 |
707d3842 | 3995 | * Since the script is opened by perl, not suidperl, some of these |
23c73cf5 PS |
3996 | * checks are superfluous. Leaving them in probably does not lower |
3997 | * security(?!). | |
3998 | */ | |
3999 | /* PSz 27 Feb 04 | |
4000 | * Do checks even for systems with no HAS_SETREUID. | |
4001 | * We used to swap, then re-swap UIDs with | |
4002 | #ifdef HAS_SETREUID | |
4003 | if (setreuid(PL_euid,PL_uid) < 0 | |
4004 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) | |
4005 | Perl_croak(aTHX_ "Can't swap uid and euid"); | |
4006 | #endif | |
4007 | #ifdef HAS_SETREUID | |
4008 | if (setreuid(PL_uid,PL_euid) < 0 | |
4009 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) | |
4010 | Perl_croak(aTHX_ "Can't reswap uid and euid"); | |
4011 | #endif | |
4012 | */ | |
4013 | ||
a687059c LW |
4014 | /* On this access check to make sure the directories are readable, |
4015 | * there is actually a small window that the user could use to make | |
4016 | * filename point to an accessible directory. So there is a faint | |
4017 | * chance that someone could execute a setuid script down in a | |
4018 | * non-accessible directory. I don't know what to do about that. | |
4019 | * But I don't think it's too important. The manual lies when | |
4020 | * it says access() is useful in setuid programs. | |
23c73cf5 PS |
4021 | * |
4022 | * So, access() is pretty useless... but not harmful... do anyway. | |
a687059c | 4023 | */ |
61938743 | 4024 | if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ |
23c73cf5 | 4025 | Perl_croak(aTHX_ "Can't access() script\n"); |
61938743 | 4026 | } |
23c73cf5 | 4027 | |
a687059c LW |
4028 | /* If we can swap euid and uid, then we can determine access rights |
4029 | * with a simple stat of the file, and then compare device and | |
4030 | * inode to make sure we did stat() on the same file we opened. | |
4031 | * Then we just have to make sure he or she can execute it. | |
23c73cf5 PS |
4032 | * |
4033 | * PSz 24 Feb 04 | |
707d3842 | 4034 | * As the script is opened by perl, not suidperl, we do not need to |
23c73cf5 PS |
4035 | * care much about access rights. |
4036 | * | |
4037 | * The 'script changed' check is needed, or we can get lied to | |
4038 | * about $0 with e.g. | |
707d3842 | 4039 | * suidperl /dev/fd/4//bin/x 4<setuidscript |
23c73cf5 PS |
4040 | * Without HAS_SETREUID, is it safe to stat() as root? |
4041 | * | |
4042 | * Are there any operating systems that pass /dev/fd/xxx for setuid | |
4043 | * scripts, as suggested/described in perlsec(1)? Surely they do not | |
4044 | * pass the script name as we do, so the "script changed" test would | |
4045 | * fail for them... but we never get here with | |
4046 | * SETUID_SCRIPTS_ARE_SECURE_NOW defined. | |
4047 | * | |
4048 | * This is one place where we must "lie" about return status: not | |
4049 | * say if the stat() failed. We are doing this as root, and could | |
4050 | * be tricked into reporting existence or not of files that the | |
4051 | * "plain" user cannot even see. | |
a687059c LW |
4052 | */ |
4053 | { | |
c623ac67 | 4054 | Stat_t tmpstatbuf; |
23c73cf5 PS |
4055 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 || |
4056 | tmpstatbuf.st_dev != PL_statbuf.st_dev || | |
b28d0864 | 4057 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
23c73cf5 | 4058 | Perl_croak(aTHX_ "Setuid script changed\n"); |
a687059c | 4059 | } |
23c73cf5 | 4060 | |
a687059c | 4061 | } |
23c73cf5 PS |
4062 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
4063 | Perl_croak(aTHX_ "Real UID cannot exec script\n"); | |
4064 | ||
4065 | /* PSz 27 Feb 04 | |
4066 | * We used to do this check as the "plain" user (after swapping | |
4067 | * UIDs). But the check for nosuid and noexec filesystem is needed, | |
4068 | * and should be done even without HAS_SETREUID. (Maybe those | |
4069 | * operating systems do not have such mount options anyway...) | |
4070 | * Seems safe enough to do as root. | |
4071 | */ | |
4072 | #if !defined(NO_NOSUID_CHECK) | |
4073 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) { | |
4074 | Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n"); | |
4075 | } | |
4076 | #endif | |
a687059c LW |
4077 | #endif /* IAMSUID */ |
4078 | ||
61938743 | 4079 | if (!S_ISREG(PL_statbuf.st_mode)) { |
23c73cf5 | 4080 | Perl_croak(aTHX_ "Setuid script not plain file\n"); |
61938743 | 4081 | } |
b28d0864 | 4082 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 4083 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c | 4084 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
23c73cf5 | 4085 | /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */ |
57843af0 | 4086 | CopLINE_inc(PL_curcop); |
0e2d6244 | 4087 | if (sv_gets(PL_linestr, PL_rsfp, 0) == NULL) |
b81b48eb | 4088 | Perl_croak(aTHX_ "No #! line"); |
db1c9db1 | 4089 | linestr = SvPV_nolen_const(PL_linestr); |
b81b48eb NC |
4090 | /* required even on Sys V */ |
4091 | if (!*linestr || !linestr[1] || strnNE(linestr,"#!",2)) | |
cea2e8a9 | 4092 | Perl_croak(aTHX_ "No #! line"); |
b81b48eb | 4093 | linestr += 2; |
db1c9db1 | 4094 | s = linestr; |
23c73cf5 PS |
4095 | /* PSz 27 Feb 04 */ |
4096 | /* Sanity check on line length */ | |
aae6d3c0 NC |
4097 | s_end = s + strlen(s); |
4098 | if (s_end == s || (s_end - s) > 4000) | |
23c73cf5 PS |
4099 | Perl_croak(aTHX_ "Very long #! line"); |
4100 | /* Allow more than a single space after #! */ | |
4101 | while (isSPACE(*s)) s++; | |
4102 | /* Sanity check on buffer end */ | |
4103 | while ((*s) && !isSPACE(*s)) s++; | |
db1c9db1 | 4104 | for (s2 = s; (s2 > linestr && |
3c71ae1e NC |
4105 | (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_' |
4106 | || s2[-1] == '-')); s2--) ; | |
23c73cf5 | 4107 | /* Sanity check on buffer start */ |
db1c9db1 NC |
4108 | if ( (s2-4 < linestr || strnNE(s2-4,"perl",4)) && |
4109 | (s-9 < linestr || strnNE(s-9,"perl",4)) ) | |
cea2e8a9 | 4110 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 4111 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
4112 | /* |
4113 | * #! arg must be what we saw above. They can invoke it by | |
707d3842 NC |
4114 | * mentioning suidperl explicitly, but they may not add any strange |
4115 | * arguments beyond what #! says if they do invoke suidperl that way. | |
13281fa4 | 4116 | */ |
23c73cf5 PS |
4117 | /* |
4118 | * The way validarg was set up, we rely on the kernel to start | |
4119 | * scripts with argv[1] set to contain all #! line switches (the | |
4120 | * whole line). | |
4121 | */ | |
4122 | /* | |
4123 | * Check that we got all the arguments listed in the #! line (not | |
4124 | * just that there are no extraneous arguments). Might not matter | |
4125 | * much, as switches from #! line seem to be acted upon (also), and | |
4126 | * so may be checked and trapped in perl. But, security checks must | |
707d3842 | 4127 | * be done in suidperl and not deferred to perl. Note that suidperl |
23c73cf5 PS |
4128 | * does not get around to parsing (and checking) the switches on |
4129 | * the #! line (but execs perl sooner). | |
4130 | * Allow (require) a trailing newline (which may be of two | |
4131 | * characters on some architectures?) (but no other trailing | |
4132 | * whitespace). | |
4133 | */ | |
13281fa4 LW |
4134 | len = strlen(validarg); |
4135 | if (strEQ(validarg," PHOOEY ") || | |
23c73cf5 | 4136 | strnNE(s,validarg,len) || !isSPACE(s[len]) || |
aae6d3c0 NC |
4137 | !((s_end - s) == len+1 |
4138 | || ((s_end - s) == len+2 && isSPACE(s[len+1])))) | |
cea2e8a9 | 4139 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
4140 | |
4141 | #ifndef IAMSUID | |
c8d40d35 | 4142 | if (fdscript < 0 && |
23c73cf5 | 4143 | PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
b28d0864 NIS |
4144 | PL_euid == PL_statbuf.st_uid) |
4145 | if (!PL_do_undump) | |
cea2e8a9 | 4146 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
cdd3a4c6 | 4147 | FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); |
a687059c | 4148 | #endif /* IAMSUID */ |
13281fa4 | 4149 | |
c8d40d35 | 4150 | if (fdscript < 0 && |
23c73cf5 PS |
4151 | PL_euid) { /* oops, we're not the setuid root perl */ |
4152 | /* PSz 18 Feb 04 | |
4153 | * When root runs a setuid script, we do not go through the same | |
cc5f7b51 | 4154 | * steps of execing sperl and then perl with fd scripts, but |
23c73cf5 PS |
4155 | * simply set up UIDs within the same perl invocation; so do |
4156 | * not have the same checks (on options, whatever) that we have | |
4157 | * for plain users. No problem really: would have to be a script | |
4158 | * that does not actually work for plain users; and if root is | |
4159 | * foolish and can be persuaded to run such an unsafe script, he | |
4160 | * might run also non-setuid ones, and deserves what he gets. | |
4161 | * | |
4162 | * Or, we might drop the PL_euid check above (and rely just on | |
c8d40d35 | 4163 | * fdscript to avoid loops), and do the execs |
23c73cf5 PS |
4164 | * even for root. |
4165 | */ | |
13281fa4 | 4166 | #ifndef IAMSUID |
23c73cf5 PS |
4167 | int which; |
4168 | /* PSz 11 Nov 03 | |
707d3842 NC |
4169 | * Pass fd script to suidperl. |
4170 | * Exec suidperl, substituting fd script for scriptname. | |
23c73cf5 PS |
4171 | * Pass script name as "subdir" of fd, which perl will grok; |
4172 | * in fact will use that to distinguish this from "normal" | |
4173 | * usage, see comments above. | |
4174 | */ | |
4175 | PerlIO_rewind(PL_rsfp); | |
4176 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
4177 | /* PSz 27 Feb 04 Sanity checks on scriptname */ | |
4178 | if ((!scriptname) || (!*scriptname) ) { | |
4179 | Perl_croak(aTHX_ "No setuid script name\n"); | |
4180 | } | |
4181 | if (*scriptname == '-') { | |
4182 | Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); | |
4183 | /* Or we might confuse it with an option when replacing | |
4184 | * name in argument list, below (though we do pointer, not | |
4185 | * string, comparisons). | |
4186 | */ | |
4187 | } | |
4188 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; | |
4189 | if (!PL_origargv[which]) { | |
4190 | Perl_croak(aTHX_ "Can't change argv to have fd script\n"); | |
4191 | } | |
4192 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
4193 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
4194 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
4195 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
4196 | #endif | |
629185f5 | 4197 | PERL_FPU_PRE_EXEC |
cc5f7b51 NC |
4198 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, |
4199 | (int)PERL_REVISION, (int)PERL_VERSION, | |
4200 | (int)PERL_SUBVERSION), PL_origargv); | |
629185f5 | 4201 | PERL_FPU_POST_EXEC |
23c73cf5 | 4202 | #endif /* IAMSUID */ |
cc5f7b51 | 4203 | Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); |
13281fa4 LW |
4204 | } |
4205 | ||
b28d0864 | 4206 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
23c73cf5 PS |
4207 | /* PSz 26 Feb 04 |
4208 | * This seems back to front: we try HAS_SETEGID first; if not available | |
4209 | * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK | |
4210 | * in the sense that we only want to set EGID; but are there any machines | |
4211 | * with either of the latter, but not the former? Same with UID, later. | |
4212 | */ | |
fe14fcc3 | 4213 | #ifdef HAS_SETEGID |
b28d0864 | 4214 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 4215 | #else |
fe14fcc3 | 4216 | #ifdef HAS_SETREGID |
b28d0864 | 4217 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
4218 | #else |
4219 | #ifdef HAS_SETRESGID | |
b28d0864 | 4220 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 4221 | #else |
b28d0864 | 4222 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
4223 | #endif |
4224 | #endif | |
85e6fe83 | 4225 | #endif |
b28d0864 | 4226 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 4227 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 4228 | } |
b28d0864 NIS |
4229 | if (PL_statbuf.st_mode & S_ISUID) { |
4230 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 4231 | #ifdef HAS_SETEUID |
b28d0864 | 4232 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 4233 | #else |
fe14fcc3 | 4234 | #ifdef HAS_SETREUID |
b28d0864 | 4235 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
4236 | #else |
4237 | #ifdef HAS_SETRESUID | |
b28d0864 | 4238 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 4239 | #else |
b28d0864 | 4240 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
4241 | #endif |
4242 | #endif | |
85e6fe83 | 4243 | #endif |
b28d0864 | 4244 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 4245 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 4246 | } |
b28d0864 | 4247 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 4248 | #ifdef HAS_SETEUID |
b28d0864 | 4249 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 4250 | #else |
fe14fcc3 | 4251 | #ifdef HAS_SETREUID |
b28d0864 | 4252 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 4253 | #else |
85e6fe83 | 4254 | #ifdef HAS_SETRESUID |
b28d0864 | 4255 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 4256 | #else |
b28d0864 | 4257 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 4258 | #endif |
a687059c LW |
4259 | #endif |
4260 | #endif | |
b28d0864 | 4261 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 4262 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 4263 | } |
748a9306 | 4264 | init_ids(); |
b28d0864 | 4265 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
23c73cf5 | 4266 | Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ |
13281fa4 LW |
4267 | } |
4268 | #ifdef IAMSUID | |
23c73cf5 | 4269 | else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
cea2e8a9 | 4270 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
c8d40d35 | 4271 | else if (fdscript < 0 || suidscript != 1) |
23c73cf5 | 4272 | /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
707d3842 | 4273 | Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); |
61938743 | 4274 | else { |
23c73cf5 | 4275 | /* PSz 16 Sep 03 Keep neat error message */ |
707d3842 | 4276 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); |
61938743 | 4277 | } |
96436eeb | 4278 | |
4279 | /* We absolutely must clear out any saved ids here, so we */ | |
4280 | /* exec the real perl, substituting fd script for scriptname. */ | |
4281 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
23c73cf5 PS |
4282 | /* |
4283 | * It might be thought that using setresgid and/or setresuid (changed to | |
4284 | * set the saved IDs) above might obviate the need to exec, and we could | |
4285 | * go on to "do the perl thing". | |
4286 | * | |
4287 | * Is there such a thing as "saved GID", and is that set for setuid (but | |
707d3842 | 4288 | * not setgid) execution like suidperl? Without exec, it would not be |
23c73cf5 PS |
4289 | * cleared for setuid (but not setgid) scripts (or might need a dummy |
4290 | * setresgid). | |
4291 | * | |
707d3842 | 4292 | * We need suidperl to do the exact same argument checking that perl |
23c73cf5 PS |
4293 | * does. Thus it cannot be very small; while it could be significantly |
4294 | * smaller, it is safer (simpler?) to make it essentially the same | |
4295 | * binary as perl (but they are not identical). - Maybe could defer that | |
707d3842 NC |
4296 | * check to the invoked perl, and suidperl be a tiny wrapper instead; |
4297 | * but prefer to do thorough checks in suidperl itself. Such deferral | |
4298 | * would make suidperl security rely on perl, a design no-no. | |
23c73cf5 PS |
4299 | * |
4300 | * Setuid things should be short and simple, thus easy to understand and | |
4301 | * verify. They should do their "own thing", without influence by | |
4302 | * attackers. It may help if their internal execution flow is fixed, | |
4303 | * regardless of platform: it may be best to exec anyway. | |
4304 | * | |
707d3842 | 4305 | * Suidperl should at least be conceptually simple: a wrapper only, |
23c73cf5 PS |
4306 | * never to do any real perl. Maybe we should put |
4307 | * #ifdef IAMSUID | |
707d3842 | 4308 | * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); |
23c73cf5 PS |
4309 | * #endif |
4310 | * into the perly bits. | |
4311 | */ | |
b28d0864 NIS |
4312 | PerlIO_rewind(PL_rsfp); |
4313 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
23c73cf5 | 4314 | /* PSz 11 Nov 03 |
707d3842 | 4315 | * Keep original arguments: suidperl already has fd script. |
23c73cf5 PS |
4316 | */ |
4317 | /* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */ | |
4318 | /* if (!PL_origargv[which]) { */ | |
4319 | /* errno = EPERM; */ | |
4320 | /* Perl_croak(aTHX_ "Permission denied\n"); */ | |
4321 | /* } */ | |
4322 | /* PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", */ | |
4323 | /* PerlIO_fileno(PL_rsfp), PL_origargv[which])); */ | |
96436eeb | 4324 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 4325 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 4326 | #endif |
629185f5 | 4327 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4328 | PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4329 | (int)PERL_REVISION, (int)PERL_VERSION, |
4330 | (int)PERL_SUBVERSION), PL_origargv);/* try again */ | |
629185f5 | 4331 | PERL_FPU_POST_EXEC |
707d3842 | 4332 | Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); |
13281fa4 | 4333 | #endif /* IAMSUID */ |
a687059c | 4334 | #else /* !DOSUID */ |
b21e3693 NC |
4335 | PERL_UNUSED_ARG(fdscript); |
4336 | PERL_UNUSED_ARG(suidscript); | |
707d3842 | 4337 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 4338 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
b28d0864 NIS |
4339 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
4340 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 4341 | || |
b28d0864 | 4342 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 4343 | ) |
b28d0864 | 4344 | if (!PL_do_undump) |
cea2e8a9 | 4345 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
4346 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
4347 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
4348 | /* not set-id, must be wrapped */ | |
a687059c | 4349 | } |
13281fa4 | 4350 | #endif /* DOSUID */ |
b21e3693 NC |
4351 | PERL_UNUSED_ARG(validarg); |
4352 | PERL_UNUSED_ARG(scriptname); | |
79072805 | 4353 | } |
13281fa4 | 4354 | |
76e3520e | 4355 | STATIC void |
cea2e8a9 | 4356 | S_find_beginning(pTHX) |
79072805 | 4357 | { |
0473add9 AL |
4358 | register char *s; |
4359 | register const char *s2; | |
5b7ea690 JH |
4360 | #ifdef MACOS_TRADITIONAL |
4361 | int maclines = 0; | |
4362 | #endif | |
33b78306 LW |
4363 | |
4364 | /* skip forward in input to the real script? */ | |
4365 | ||
bf4acbe4 | 4366 | #ifdef MACOS_TRADITIONAL |
084592ab | 4367 | /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ |
ac27b0f5 | 4368 | |
bf4acbe4 | 4369 | while (PL_doextract || gMacPerl_AlwaysExtract) { |
0e2d6244 | 4370 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
bf4acbe4 GS |
4371 | if (!gMacPerl_AlwaysExtract) |
4372 | Perl_croak(aTHX_ "No Perl script found in input\n"); | |
5b7ea690 | 4373 | |
bf4acbe4 GS |
4374 | if (PL_doextract) /* require explicit override ? */ |
4375 | if (!OverrideExtract(PL_origfilename)) | |
4376 | Perl_croak(aTHX_ "User aborted script\n"); | |
4377 | else | |
4378 | PL_doextract = FALSE; | |
5b7ea690 | 4379 | |
bf4acbe4 GS |
4380 | /* Pater peccavi, file does not have #! */ |
4381 | PerlIO_rewind(PL_rsfp); | |
5b7ea690 | 4382 | |
bf4acbe4 GS |
4383 | break; |
4384 | } | |
4385 | #else | |
3280af22 | 4386 | while (PL_doextract) { |
0e2d6244 | 4387 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == NULL) |
cea2e8a9 | 4388 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
bf4acbe4 | 4389 | #endif |
4f0c37ba IZ |
4390 | s2 = s; |
4391 | if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { | |
3280af22 NIS |
4392 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
4393 | PL_doextract = FALSE; | |
6e72f9df | 4394 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
4395 | s2 = s; | |
4396 | while (*s == ' ' || *s == '\t') s++; | |
4397 | if (*s++ == '-') { | |
3c71ae1e NC |
4398 | while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' |
4399 | || s2[-1] == '_') s2--; | |
6e72f9df | 4400 | if (strnEQ(s2-4,"perl",4)) |
155aba94 GS |
4401 | while ((s = moreswitches(s))) |
4402 | ; | |
33b78306 | 4403 | } |
95e8664e | 4404 | #ifdef MACOS_TRADITIONAL |
5b7ea690 JH |
4405 | /* We are always searching for the #!perl line in MacPerl, |
4406 | * so if we find it, still keep the line count correct | |
4407 | * by counting lines we already skipped over | |
4408 | */ | |
4409 | for (; maclines > 0 ; maclines--) | |
4410 | PerlIO_ungetc(PL_rsfp, '\n'); | |
4411 | ||
95e8664e | 4412 | break; |
5b7ea690 JH |
4413 | |
4414 | /* gMacPerl_AlwaysExtract is false in MPW tool */ | |
4415 | } else if (gMacPerl_AlwaysExtract) { | |
4416 | ++maclines; | |
95e8664e | 4417 | #endif |
83025b21 LW |
4418 | } |
4419 | } | |
4420 | } | |
4421 | ||
afe37c7d | 4422 | |
76e3520e | 4423 | STATIC void |
cea2e8a9 | 4424 | S_init_ids(pTHX) |
352d5a3a | 4425 | { |
d8eceb89 JH |
4426 | PL_uid = PerlProc_getuid(); |
4427 | PL_euid = PerlProc_geteuid(); | |
4428 | PL_gid = PerlProc_getgid(); | |
4429 | PL_egid = PerlProc_getegid(); | |
748a9306 | 4430 | #ifdef VMS |
b28d0864 NIS |
4431 | PL_uid |= PL_gid << 16; |
4432 | PL_euid |= PL_egid << 16; | |
748a9306 | 4433 | #endif |
26776375 JH |
4434 | /* Should not happen: */ |
4435 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 4436 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
23c73cf5 PS |
4437 | /* BUG */ |
4438 | /* PSz 27 Feb 04 | |
4439 | * Should go by suidscript, not uid!=euid: why disallow | |
4440 | * system("ls") in scripts run from setuid things? | |
4441 | * Or, is this run before we check arguments and set suidscript? | |
4442 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
4443 | * (We never have suidscript, can we be sure to have fdscript?) | |
4444 | * Or must then go by UID checks? See comments in forbid_setid also. | |
4445 | */ | |
748a9306 | 4446 | } |
79072805 | 4447 | |
1aa6899f JH |
4448 | /* This is used very early in the lifetime of the program, |
4449 | * before even the options are parsed, so PL_tainting has | |
2adc3af3 | 4450 | * not been initialized properly. */ |
1aa6899f | 4451 | bool |
26776375 JH |
4452 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
4453 | { | |
406c4b1e JH |
4454 | #ifndef PERL_IMPLICIT_SYS |
4455 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
4456 | * before we have an interpreter-- and the whole point of this | |
4457 | * function is to be called at such an early stage. If you are on | |
4458 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
4459 | * "tainted because running with altered effective ids', you'll | |
4460 | * have to add your own checks somewhere in here. The two most | |
4461 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
4462 | * of which has much of concept of 'uids'. */ | |
1aa6899f | 4463 | int uid = PerlProc_getuid(); |
26776375 | 4464 | int euid = PerlProc_geteuid(); |
1aa6899f | 4465 | int gid = PerlProc_getgid(); |
26776375 | 4466 | int egid = PerlProc_getegid(); |
c501bbfe | 4467 | (void)envp; |
26776375 JH |
4468 | |
4469 | #ifdef VMS | |
1aa6899f | 4470 | uid |= gid << 16; |
26776375 JH |
4471 | euid |= egid << 16; |
4472 | #endif | |
4473 | if (uid && (euid != uid || egid != gid)) | |
4474 | return 1; | |
406c4b1e | 4475 | #endif /* !PERL_IMPLICIT_SYS */ |
1aa6899f JH |
4476 | /* This is a really primitive check; environment gets ignored only |
4477 | * if -T are the first chars together; otherwise one gets | |
4478 | * "Too late" message. */ | |
26776375 JH |
4479 | if ( argc > 1 && argv[1][0] == '-' |
4480 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
4481 | return 1; | |
4482 | return 0; | |
4483 | } | |
26776375 | 4484 | |
c8d40d35 NC |
4485 | /* Passing the flag as a single char rather than a string is a slight space |
4486 | optimisation. The only message that isn't /^-.$/ is | |
4487 | "program input from stdin", which is substituted in place of '\0', which | |
4488 | could never be a command line flag. */ | |
76e3520e | 4489 | STATIC void |
c8d40d35 | 4490 | S_forbid_setid(pTHX_ const char flag, const int suidscript) |
bbce6d69 | 4491 | { |
c8d40d35 NC |
4492 | char string[3] = "-x"; |
4493 | const char *message = "program input from stdin"; | |
4494 | ||
4495 | if (flag) { | |
4496 | string[1] = flag; | |
4497 | message = string; | |
4498 | } | |
4499 | ||
23c73cf5 | 4500 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 4501 | if (PL_euid != PL_uid) |
c8d40d35 | 4502 | Perl_croak(aTHX_ "No %s allowed while running setuid", message); |
3280af22 | 4503 | if (PL_egid != PL_gid) |
c8d40d35 | 4504 | Perl_croak(aTHX_ "No %s allowed while running setgid", message); |
23c73cf5 PS |
4505 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
4506 | /* PSz 29 Feb 04 | |
4507 | * Checks for UID/GID above "wrong": why disallow | |
4508 | * perl -e 'print "Hello\n"' | |
4509 | * from within setuid things?? Simply drop them: replaced by | |
4510 | * fdscript/suidscript and #ifdef IAMSUID checks below. | |
4511 | * | |
4512 | * This may be too late for command-line switches. Will catch those on | |
4513 | * the #! line, after finding the script name and setting up | |
707d3842 | 4514 | * fdscript/suidscript. Note that suidperl does not get around to |
23c73cf5 PS |
4515 | * parsing (and checking) the switches on the #! line, but checks that |
4516 | * the two sets are identical. | |
4517 | * | |
4518 | * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or | |
4519 | * instead, or would that be "too late"? (We never have suidscript, can | |
4520 | * we be sure to have fdscript?) | |
4521 | * | |
707d3842 NC |
4522 | * Catch things with suidscript (in descendant of suidperl), even with |
4523 | * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, | |
23c73cf5 PS |
4524 | * below; but I am paranoid. |
4525 | * | |
4526 | * Also see comments about root running a setuid script, elsewhere. | |
4527 | */ | |
c8d40d35 NC |
4528 | if (suidscript >= 0) |
4529 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", message); | |
23c73cf5 | 4530 | #ifdef IAMSUID |
707d3842 | 4531 | /* PSz 11 Nov 03 Catch it in suidperl, always! */ |
c8d40d35 | 4532 | Perl_croak(aTHX_ "No %s allowed in suidperl", message); |
23c73cf5 | 4533 | #endif /* IAMSUID */ |
bbce6d69 | 4534 | } |
4535 | ||
1ee4443e IZ |
4536 | void |
4537 | Perl_init_debugger(pTHX) | |
748a9306 | 4538 | { |
1a9219e7 | 4539 | HV * const ostash = PL_curstash; |
1ee4443e | 4540 | |
3280af22 | 4541 | PL_curstash = PL_debstash; |
b977d03a NC |
4542 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args", GV_ADDMULTI, |
4543 | SVt_PVAV)))); | |
3280af22 | 4544 | AvREAL_off(PL_dbargs); |
b977d03a NC |
4545 | PL_DBgv = gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV); |
4546 | PL_DBline = gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
4547 | PL_DBsub = gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
4548 | PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV))); | |
ac27b0f5 | 4549 | sv_setiv(PL_DBsingle, 0); |
b977d03a | 4550 | PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4551 | sv_setiv(PL_DBtrace, 0); |
b977d03a | 4552 | PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4553 | sv_setiv(PL_DBsignal, 0); |
1ee4443e | 4554 | PL_curstash = ostash; |
352d5a3a LW |
4555 | } |
4556 | ||
2ce36478 SM |
4557 | #ifndef STRESS_REALLOC |
4558 | #define REASONABLE(size) (size) | |
4559 | #else | |
4560 | #define REASONABLE(size) (1) /* unreasonable */ | |
4561 | #endif | |
4562 | ||
11343788 | 4563 | void |
cea2e8a9 | 4564 | Perl_init_stacks(pTHX) |
79072805 | 4565 | { |
e336de0d | 4566 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 4567 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 4568 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
4569 | PL_curstackinfo->si_type = PERLSI_MAIN; |
4570 | PL_curstack = PL_curstackinfo->si_stack; | |
4571 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 4572 | |
3280af22 NIS |
4573 | PL_stack_base = AvARRAY(PL_curstack); |
4574 | PL_stack_sp = PL_stack_base; | |
4575 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 4576 | |
cd7a8267 | 4577 | Newx(PL_tmps_stack,REASONABLE(128),SV*); |
3280af22 NIS |
4578 | PL_tmps_floor = -1; |
4579 | PL_tmps_ix = -1; | |
4580 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 4581 | |
cd7a8267 | 4582 | Newx(PL_markstack,REASONABLE(32),I32); |
3280af22 NIS |
4583 | PL_markstack_ptr = PL_markstack; |
4584 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 4585 | |
ce2f7c3b | 4586 | SET_MARK_OFFSET; |
e336de0d | 4587 | |
cd7a8267 | 4588 | Newx(PL_scopestack,REASONABLE(32),I32); |
3280af22 NIS |
4589 | PL_scopestack_ix = 0; |
4590 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 4591 | |
cd7a8267 | 4592 | Newx(PL_savestack,REASONABLE(128),ANY); |
3280af22 NIS |
4593 | PL_savestack_ix = 0; |
4594 | PL_savestack_max = REASONABLE(128); | |
79072805 | 4595 | |
3280af22 NIS |
4596 | New(54,PL_retstack,REASONABLE(16),OP*); |
4597 | PL_retstack_ix = 0; | |
4598 | PL_retstack_max = REASONABLE(16); | |
378cc40b | 4599 | } |
33b78306 | 4600 | |
2ce36478 SM |
4601 | #undef REASONABLE |
4602 | ||
76e3520e | 4603 | STATIC void |
cea2e8a9 | 4604 | S_nuke_stacks(pTHX) |
6e72f9df | 4605 | { |
3280af22 NIS |
4606 | while (PL_curstackinfo->si_next) |
4607 | PL_curstackinfo = PL_curstackinfo->si_next; | |
4608 | while (PL_curstackinfo) { | |
4609 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 4610 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
4611 | Safefree(PL_curstackinfo->si_cxstack); |
4612 | Safefree(PL_curstackinfo); | |
4613 | PL_curstackinfo = p; | |
e336de0d | 4614 | } |
3280af22 NIS |
4615 | Safefree(PL_tmps_stack); |
4616 | Safefree(PL_markstack); | |
4617 | Safefree(PL_scopestack); | |
4618 | Safefree(PL_savestack); | |
4619 | Safefree(PL_retstack); | |
378cc40b | 4620 | } |
33b78306 | 4621 | |
76e3520e | 4622 | STATIC void |
cea2e8a9 | 4623 | S_init_lexer(pTHX) |
8990e307 | 4624 | { |
06039172 | 4625 | PerlIO *tmpfp; |
3280af22 | 4626 | tmpfp = PL_rsfp; |
0e2d6244 | 4627 | PL_rsfp = NULL; |
3280af22 NIS |
4628 | lex_start(PL_linestr); |
4629 | PL_rsfp = tmpfp; | |
d7559646 | 4630 | PL_subname = newSVpvs("main"); |
8990e307 LW |
4631 | } |
4632 | ||
76e3520e | 4633 | STATIC void |
cea2e8a9 | 4634 | S_init_predump_symbols(pTHX) |
45d8adaa | 4635 | { |
93a17b20 | 4636 | GV *tmpgv; |
af8c498a | 4637 | IO *io; |
79072805 | 4638 | |
864dbfa3 | 4639 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
b977d03a | 4640 | PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3280af22 | 4641 | GvMULTI_on(PL_stdingv); |
af8c498a | 4642 | io = GvIOp(PL_stdingv); |
a04651f4 | 4643 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 4644 | IoIFP(io) = PerlIO_stdin(); |
b977d03a | 4645 | tmpgv = gv_fetchpvs("stdin", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4646 | GvMULTI_on(tmpgv); |
be2d5e07 | 4647 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4648 | |
b977d03a | 4649 | tmpgv = gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
a5f75d66 | 4650 | GvMULTI_on(tmpgv); |
af8c498a | 4651 | io = GvIOp(tmpgv); |
a04651f4 | 4652 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4653 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 4654 | setdefout(tmpgv); |
b977d03a | 4655 | tmpgv = gv_fetchpvs("stdout", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4656 | GvMULTI_on(tmpgv); |
be2d5e07 | 4657 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4658 | |
b977d03a | 4659 | PL_stderrgv = gv_fetchpvs("STDERR", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
bf49b057 GS |
4660 | GvMULTI_on(PL_stderrgv); |
4661 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 4662 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4663 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
b977d03a | 4664 | tmpgv = gv_fetchpvs("stderr", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4665 | GvMULTI_on(tmpgv); |
be2d5e07 | 4666 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4667 | |
133cdda0 | 4668 | PL_statname = newSV(0); /* last filename we did stat on */ |
ab821d7f | 4669 | |
4c58c75a | 4670 | Safefree(PL_osname); |
bf4acbe4 | 4671 | PL_osname = savepv(OSNAME); |
79072805 | 4672 | } |
33b78306 | 4673 | |
a11ec5a9 RGS |
4674 | void |
4675 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) | |
33b78306 | 4676 | { |
79072805 | 4677 | argc--,argv++; /* skip name of script */ |
3280af22 | 4678 | if (PL_doswitches) { |
79072805 | 4679 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
c9dc1ff4 | 4680 | char *s; |
79072805 LW |
4681 | if (!argv[0][1]) |
4682 | break; | |
379d538a | 4683 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
4684 | argc--,argv++; |
4685 | break; | |
4686 | } | |
155aba94 | 4687 | if ((s = strchr(argv[0], '='))) { |
057b822e NC |
4688 | const char *const start_name = argv[0] + 1; |
4689 | sv_setpv(GvSV(gv_fetchpvn_flags(start_name, s - start_name, | |
4690 | TRUE, SVt_PV)), s + 1); | |
79072805 LW |
4691 | } |
4692 | else | |
b977d03a | 4693 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1, GV_ADD, SVt_PV)),1); |
fe14fcc3 | 4694 | } |
79072805 | 4695 | } |
b977d03a | 4696 | if ((PL_argvgv = gv_fetchpvs("ARGV", GV_ADD|GV_NOTQUAL, SVt_PVAV))) { |
a11ec5a9 RGS |
4697 | GvMULTI_on(PL_argvgv); |
4698 | (void)gv_AVadd(PL_argvgv); | |
4699 | av_clear(GvAVn(PL_argvgv)); | |
4700 | for (; argc > 0; argc--,argv++) { | |
c9dc1ff4 | 4701 | SV * const sv = newSVpv(argv[0],0); |
a11ec5a9 | 4702 | av_push(GvAVn(PL_argvgv),sv); |
f8bb70a6 JH |
4703 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4704 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4705 | SvUTF8_on(sv); | |
4706 | } | |
4707 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ | |
4708 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4709 | } |
4710 | } | |
4711 | } | |
4712 | ||
3c71ae1e | 4713 | STATIC void |
a11ec5a9 RGS |
4714 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) |
4715 | { | |
a11ec5a9 | 4716 | GV* tmpgv; |
a11ec5a9 | 4717 | |
133cdda0 | 4718 | PL_toptarget = newSV(0); |
3280af22 NIS |
4719 | sv_upgrade(PL_toptarget, SVt_PVFM); |
4720 | sv_setpvn(PL_toptarget, "", 0); | |
133cdda0 | 4721 | PL_bodytarget = newSV(0); |
3280af22 NIS |
4722 | sv_upgrade(PL_bodytarget, SVt_PVFM); |
4723 | sv_setpvn(PL_bodytarget, "", 0); | |
4724 | PL_formtarget = PL_bodytarget; | |
79072805 | 4725 | |
bbce6d69 | 4726 | TAINT; |
a11ec5a9 RGS |
4727 | |
4728 | init_argv_symbols(argc,argv); | |
4729 | ||
b977d03a | 4730 | if ((tmpgv = gv_fetchpvs("0", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
bf4acbe4 GS |
4731 | #ifdef MACOS_TRADITIONAL |
4732 | /* $0 is not majick on a Mac */ | |
4733 | sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); | |
4734 | #else | |
3280af22 | 4735 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 | 4736 | magicname("0", "0", 1); |
bf4acbe4 | 4737 | #endif |
79072805 | 4738 | } |
b977d03a | 4739 | if ((PL_envgv = gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV))) { |
79072805 | 4740 | HV *hv; |
c8271eaf | 4741 | bool env_is_not_environ; |
3280af22 NIS |
4742 | GvMULTI_on(PL_envgv); |
4743 | hv = GvHVn(PL_envgv); | |
0e2d6244 | 4744 | hv_magic(hv, NULL, PERL_MAGIC_env); |
75a5c1c6 | 4745 | #ifndef PERL_MICRO |
fa6a1c44 | 4746 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4747 | /* Note that if the supplied env parameter is actually a copy |
4748 | of the global environ then it may now point to free'd memory | |
4749 | if the environment has been modified since. To avoid this | |
4750 | problem we treat env==NULL as meaning 'use the default' | |
4751 | */ | |
4752 | if (!env) | |
4753 | env = environ; | |
c8271eaf NC |
4754 | env_is_not_environ = env != environ; |
4755 | if (env_is_not_environ | |
4efc5df6 GS |
4756 | # ifdef USE_ITHREADS |
4757 | && PL_curinterp == aTHX | |
4758 | # endif | |
4759 | ) | |
4760 | { | |
0e2d6244 | 4761 | environ[0] = NULL; |
4efc5df6 | 4762 | } |
765545f3 NC |
4763 | if (env) { |
4764 | char** origenv = environ; | |
fe20fd30 JH |
4765 | char *s; |
4766 | SV *sv; | |
764df951 | 4767 | for (; *env; env++) { |
765545f3 | 4768 | if (!(s = strchr(*env,'=')) || s == *env) |
79072805 | 4769 | continue; |
cdcb30de | 4770 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4771 | *s = '\0'; |
137443ea | 4772 | (void)strupr(*env); |
61968511 | 4773 | *s = '='; |
137443ea | 4774 | #endif |
61968511 | 4775 | sv = newSVpv(s+1, 0); |
79072805 | 4776 | (void)hv_store(hv, *env, s - *env, sv, 0); |
c8271eaf | 4777 | if (env_is_not_environ) |
61968511 | 4778 | mg_set(sv); |
765545f3 NC |
4779 | if (origenv != environ) { |
4780 | /* realloc has shifted us */ | |
4781 | env = (env - origenv) + environ; | |
4782 | origenv = environ; | |
4783 | } | |
764df951 | 4784 | } |
765545f3 | 4785 | } |
103a7189 | 4786 | #endif /* USE_ENVIRON_ARRAY */ |
75a5c1c6 | 4787 | #endif /* !PERL_MICRO */ |
79072805 | 4788 | } |
bbce6d69 | 4789 | TAINT_NOT; |
b977d03a | 4790 | if ((tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
306196c3 | 4791 | SvREADONLY_off(GvSV(tmpgv)); |
7766f137 | 4792 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4793 | SvREADONLY_on(GvSV(tmpgv)); |
4794 | } | |
5b7ea690 JH |
4795 | #ifdef THREADS_HAVE_PIDS |
4796 | PL_ppid = (IV)getppid(); | |
4797 | #endif | |
2710853f MJD |
4798 | |
4799 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4800 | if (PL_minus_a) { | |
4801 | (void) get_av("main::F", TRUE | GV_ADDMULTI); | |
4802 | } | |
4803 | /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */ | |
4804 | (void) get_av("main::-", TRUE | GV_ADDMULTI); | |
4805 | (void) get_av("main::+", TRUE | GV_ADDMULTI); | |
33b78306 | 4806 | } |
34de22dd | 4807 | |
76e3520e | 4808 | STATIC void |
cea2e8a9 | 4809 | S_init_perllib(pTHX) |
34de22dd | 4810 | { |
85e6fe83 | 4811 | char *s; |
3280af22 | 4812 | if (!PL_tainting) { |
552a7a9b | 4813 | #ifndef VMS |
76e3520e | 4814 | s = PerlEnv_getenv("PERL5LIB"); |
64596349 AB |
4815 | /* |
4816 | * It isn't possible to delete an environment variable with | |
4817 | * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that | |
4818 | * case we treat PERL5LIB as undefined if it has a zero-length value. | |
4819 | */ | |
4820 | #if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV) | |
4821 | if (s && *s != '\0') | |
4822 | #else | |
85e6fe83 | 4823 | if (s) |
64596349 | 4824 | #endif |
63fe74dd | 4825 | incpush(s, TRUE, TRUE, TRUE, FALSE); |
85e6fe83 | 4826 | else |
63fe74dd | 4827 | incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, FALSE); |
552a7a9b | 4828 | #else /* VMS */ |
4829 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4830 | * "natural" VMS idiom for a Unix path string. We allow each | |
4831 | * element to be a set of |-separated directories for compatibility. | |
4832 | */ | |
4833 | char buf[256]; | |
4834 | int idx = 0; | |
4835 | if (my_trnlnm("PERL5LIB",buf,0)) | |
63fe74dd | 4836 | do { incpush(buf,TRUE,TRUE,TRUE,FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 4837 | else |
63fe74dd | 4838 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE); |
552a7a9b | 4839 | #endif /* VMS */ |
85e6fe83 | 4840 | } |
34de22dd | 4841 | |
c90c0ff4 | 4842 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
65f19062 | 4843 | ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB |
df5cef82 | 4844 | */ |
4633a7c4 | 4845 | #ifdef APPLLIB_EXP |
63fe74dd | 4846 | incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE); |
16d20bd9 | 4847 | #endif |
4633a7c4 | 4848 | |
fed7345c | 4849 | #ifdef ARCHLIB_EXP |
63fe74dd | 4850 | incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
a0d0e21e | 4851 | #endif |
bf4acbe4 GS |
4852 | #ifdef MACOS_TRADITIONAL |
4853 | { | |
c623ac67 | 4854 | Stat_t tmpstatbuf; |
133cdda0 | 4855 | SV * privdir = newSV(0); |
bf4acbe4 GS |
4856 | char * macperl = PerlEnv_getenv("MACPERL"); |
4857 | ||
4858 | if (!macperl) | |
4859 | macperl = ""; | |
4860 | ||
4861 | Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); | |
4862 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
63fe74dd | 4863 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
bf4acbe4 GS |
4864 | Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); |
4865 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
63fe74dd | 4866 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
ac27b0f5 | 4867 | |
bf4acbe4 GS |
4868 | SvREFCNT_dec(privdir); |
4869 | } | |
4870 | if (!PL_tainting) | |
63fe74dd | 4871 | incpush(":", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4872 | #else |
fed7345c | 4873 | #ifndef PRIVLIB_EXP |
65f19062 | 4874 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd | 4875 | #endif |
ac27b0f5 | 4876 | #if defined(WIN32) |
63fe74dd | 4877 | incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE); |
00dc2f4f | 4878 | #else |
63fe74dd | 4879 | incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
00dc2f4f | 4880 | #endif |
4633a7c4 | 4881 | |
65f19062 | 4882 | #ifdef SITEARCH_EXP |
3b290362 GS |
4883 | /* sitearch is always relative to sitelib on Windows for |
4884 | * DLL-based path intuition to work correctly */ | |
4885 | # if !defined(WIN32) | |
63fe74dd | 4886 | incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4887 | # endif |
4888 | #endif | |
4889 | ||
4633a7c4 | 4890 | #ifdef SITELIB_EXP |
65f19062 | 4891 | # if defined(WIN32) |
574c798a | 4892 | /* this picks up sitearch as well */ |
63fe74dd | 4893 | incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE); |
65f19062 | 4894 | # else |
63fe74dd | 4895 | incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4896 | # endif |
4897 | #endif | |
189d1e8d | 4898 | |
5109a103 NC |
4899 | #if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST) |
4900 | /* Search for version-specific dirs below here */ | |
63fe74dd | 4901 | incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE); |
81c6dfba | 4902 | #endif |
65f19062 GS |
4903 | |
4904 | #ifdef PERL_VENDORARCH_EXP | |
4ea817c6 | 4905 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4906 | * DLL-based path intuition to work correctly */ |
4907 | # if !defined(WIN32) | |
63fe74dd | 4908 | incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4909 | # endif |
4b03c463 | 4910 | #endif |
65f19062 GS |
4911 | |
4912 | #ifdef PERL_VENDORLIB_EXP | |
4913 | # if defined(WIN32) | |
63fe74dd | 4914 | incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE); /* this picks up vendorarch as well */ |
65f19062 | 4915 | # else |
63fe74dd | 4916 | incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4917 | # endif |
a3635516 | 4918 | #endif |
65f19062 GS |
4919 | |
4920 | #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */ | |
63fe74dd | 4921 | incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE); |
00dc2f4f | 4922 | #endif |
65f19062 | 4923 | |
3b777bb4 | 4924 | #ifdef PERL_OTHERLIBDIRS |
63fe74dd | 4925 | incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE); |
3b777bb4 GS |
4926 | #endif |
4927 | ||
3280af22 | 4928 | if (!PL_tainting) |
63fe74dd | 4929 | incpush(".", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4930 | #endif /* MACOS_TRADITIONAL */ |
774d564b | 4931 | } |
4932 | ||
fe20fd30 | 4933 | #if defined(DOSISH) || defined(EPOC) || defined(SYMBIAN) |
774d564b | 4934 | # define PERLLIB_SEP ';' |
4935 | #else | |
4936 | # if defined(VMS) | |
4937 | # define PERLLIB_SEP '|' | |
4938 | # else | |
bf4acbe4 GS |
4939 | # if defined(MACOS_TRADITIONAL) |
4940 | # define PERLLIB_SEP ',' | |
4941 | # else | |
4942 | # define PERLLIB_SEP ':' | |
4943 | # endif | |
774d564b | 4944 | # endif |
4945 | #endif | |
4946 | #ifndef PERLLIB_MANGLE | |
4947 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4948 | #endif |
774d564b | 4949 | |
3c71ae1e NC |
4950 | /* Push a directory onto @INC if it exists. |
4951 | Generate a new SV if we do this, to save needing to copy the SV we push | |
4952 | onto @INC */ | |
4953 | STATIC SV * | |
4954 | S_incpush_if_exists(pTHX_ SV *dir) | |
4955 | { | |
4956 | Stat_t tmpstatbuf; | |
71a0dd65 | 4957 | if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && |
3c71ae1e NC |
4958 | S_ISDIR(tmpstatbuf.st_mode)) { |
4959 | av_push(GvAVn(PL_incgv), dir); | |
133cdda0 | 4960 | dir = newSV(0); |
3c71ae1e NC |
4961 | } |
4962 | return dir; | |
4963 | } | |
4964 | ||
76e3520e | 4965 | STATIC void |
63fe74dd NC |
4966 | S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, |
4967 | bool canrelocate) | |
774d564b | 4968 | { |
0e2d6244 | 4969 | SV *subdir = NULL; |
0473add9 | 4970 | const char *p = dir; |
774d564b | 4971 | |
3b290362 | 4972 | if (!p || !*p) |
774d564b | 4973 | return; |
4974 | ||
9c8a64f0 | 4975 | if (addsubdirs || addoldvers) { |
133cdda0 | 4976 | subdir = newSV(0); |
774d564b | 4977 | } |
4978 | ||
4979 | /* Break at all separators */ | |
4980 | while (p && *p) { | |
133cdda0 | 4981 | SV *libdir = newSV(0); |
c05e0e2f | 4982 | const char *s; |
774d564b | 4983 | |
4984 | /* skip any consecutive separators */ | |
574c798a SR |
4985 | if (usesep) { |
4986 | while ( *p == PERLLIB_SEP ) { | |
4987 | /* Uncomment the next line for PATH semantics */ | |
d7559646 | 4988 | /* av_push(GvAVn(PL_incgv), newSVpvs(".")); */ |
574c798a SR |
4989 | p++; |
4990 | } | |
774d564b | 4991 | } |
4992 | ||
0e2d6244 | 4993 | if ( usesep && (s = strchr(p, PERLLIB_SEP)) != NULL ) { |
774d564b | 4994 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
4995 | (STRLEN)(s - p)); | |
4996 | p = s + 1; | |
4997 | } | |
4998 | else { | |
4999 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
0e2d6244 | 5000 | p = NULL; /* break out */ |
774d564b | 5001 | } |
bf4acbe4 | 5002 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
5003 | if (!strchr(SvPVX(libdir), ':')) { |
5004 | char buf[256]; | |
5005 | ||
5006 | sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); | |
5007 | } | |
bf4acbe4 | 5008 | if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') |
d7559646 | 5009 | sv_catpvs(libdir, ":"); |
bf4acbe4 | 5010 | #endif |
774d564b | 5011 | |
6e0d722c NC |
5012 | /* Do the if() outside the #ifdef to avoid warnings about an unused |
5013 | parameter. */ | |
5014 | if (canrelocate) { | |
63fe74dd NC |
5015 | #ifdef PERL_RELOCATABLE_INC |
5016 | /* | |
5017 | * Relocatable include entries are marked with a leading .../ | |
5018 | * | |
5019 | * The algorithm is | |
5020 | * 0: Remove that leading ".../" | |
5021 | * 1: Remove trailing executable name (anything after the last '/') | |
5022 | * from the perl path to give a perl prefix | |
5023 | * Then | |
5024 | * While the @INC element starts "../" and the prefix ends with a real | |
5025 | * directory (ie not . or ..) chop that real directory off the prefix | |
5026 | * and the leading "../" from the @INC element. ie a logical "../" | |
5027 | * cleanup | |
5028 | * Finally concatenate the prefix and the remainder of the @INC element | |
5029 | * The intent is that /usr/local/bin/perl and .../../lib/perl5 | |
5030 | * generates /usr/local/lib/perl5 | |
5031 | */ | |
63fe74dd NC |
5032 | char *libpath = SvPVX(libdir); |
5033 | STRLEN libpath_len = SvCUR(libdir); | |
5034 | if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { | |
5035 | /* Game on! */ | |
5036 | SV *caret_X = get_sv("\030", 0); | |
5037 | /* Going to use the SV just as a scratch buffer holding a C | |
5038 | string: */ | |
5039 | SV *prefix_sv; | |
5040 | char *prefix; | |
5041 | char *lastslash; | |
5042 | ||
5043 | /* $^X is *the* source of taint if tainting is on, hence | |
5044 | SvPOK() won't be true. */ | |
5045 | assert(caret_X); | |
5046 | assert(SvPOKp(caret_X)); | |
5047 | prefix_sv = newSVpvn(SvPVX(caret_X), SvCUR(caret_X)); | |
5048 | /* Firstly take off the leading .../ | |
5049 | If all else fail we'll do the paths relative to the current | |
5050 | directory. */ | |
5051 | sv_chop(libdir, libpath + 4); | |
5052 | /* Don't use SvPV as we're intentionally bypassing taining, | |
5053 | mortal copies that the mg_get of tainting creates, and | |
5054 | corruption that seems to come via the save stack. | |
5055 | I guess that the save stack isn't correctly set up yet. */ | |
5056 | libpath = SvPVX(libdir); | |
5057 | libpath_len = SvCUR(libdir); | |
5058 | ||
5059 | /* This would work more efficiently with memrchr, but as it's | |
5060 | only a GNU extension we'd need to probe for it and | |
5061 | implement our own. Not hard, but maybe not worth it? */ | |
5062 | ||
5063 | prefix = SvPVX(prefix_sv); | |
5064 | lastslash = strrchr(prefix, '/'); | |
5065 | ||
5066 | /* First time in with the *lastslash = '\0' we just wipe off | |
5067 | the trailing /perl from (say) /usr/foo/bin/perl | |
5068 | */ | |
5069 | if (lastslash) { | |
5070 | SV *tempsv; | |
5071 | while ((*lastslash = '\0'), /* Do that, come what may. */ | |
5072 | (libpath_len >= 3 && memEQ(libpath, "../", 3) | |
5073 | && (lastslash = strrchr(prefix, '/')))) { | |
5074 | if (lastslash[1] == '\0' | |
5075 | || (lastslash[1] == '.' | |
5076 | && (lastslash[2] == '/' /* ends "/." */ | |
5077 | || (lastslash[2] == '/' | |
5078 | && lastslash[3] == '/' /* or "/.." */ | |
5079 | )))) { | |
5080 | /* Prefix ends "/" or "/." or "/..", any of which | |
5081 | are fishy, so don't do any more logical cleanup. | |
5082 | */ | |
5083 | break; | |
5084 | } | |
5085 | /* Remove leading "../" from path */ | |
5086 | libpath += 3; | |
5087 | libpath_len -= 3; | |
5088 | /* Next iteration round the loop removes the last | |
5089 | directory name from prefix by writing a '\0' in | |
5090 | the while clause. */ | |
5091 | } | |
5092 | /* prefix has been terminated with a '\0' to the correct | |
5093 | length. libpath points somewhere into the libdir SV. | |
5094 | We need to join the 2 with '/' and drop the result into | |
5095 | libdir. */ | |
5096 | tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); | |
5097 | SvREFCNT_dec(libdir); | |
5098 | /* And this is the new libdir. */ | |
5099 | libdir = tempsv; | |
5100 | if (PL_tainting && | |
5101 | (PL_uid != PL_euid || PL_gid != PL_egid)) { | |
5102 | /* Need to taint reloccated paths if running set ID */ | |
5103 | SvTAINTED_on(libdir); | |
5104 | } | |
5105 | } | |
5106 | SvREFCNT_dec(prefix_sv); | |
5107 | } | |
63fe74dd | 5108 | #endif |
6e0d722c | 5109 | } |
774d564b | 5110 | /* |
5111 | * BEFORE pushing libdir onto @INC we may first push version- and | |
5112 | * archname-specific sub-directories. | |
5113 | */ | |
9c8a64f0 | 5114 | if (addsubdirs || addoldvers) { |
29d82f8d | 5115 | #ifdef PERL_INC_VERSION_LIST |
8353b874 | 5116 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
1a9219e7 AL |
5117 | const char * const incverlist[] = { PERL_INC_VERSION_LIST }; |
5118 | const char * const *incver; | |
29d82f8d | 5119 | #endif |
aa689395 | 5120 | #ifdef VMS |
5121 | char *unix; | |
5122 | STRLEN len; | |
774d564b | 5123 | |
0e2d6244 | 5124 | if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) { |
aa689395 | 5125 | len = strlen(unix); |
5126 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
5127 | sv_usepvn(libdir,unix,len); | |
5128 | } | |
5129 | else | |
bf49b057 | 5130 | PerlIO_printf(Perl_error_log, |
aa689395 | 5131 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 5132 | SvPV(libdir,len)); |
aa689395 | 5133 | #endif |
9c8a64f0 | 5134 | if (addsubdirs) { |
bf4acbe4 GS |
5135 | #ifdef MACOS_TRADITIONAL |
5136 | #define PERL_AV_SUFFIX_FMT "" | |
084592ab CN |
5137 | #define PERL_ARCH_FMT "%s:" |
5138 | #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT | |
bf4acbe4 GS |
5139 | #else |
5140 | #define PERL_AV_SUFFIX_FMT "/" | |
5141 | #define PERL_ARCH_FMT "/%s" | |
084592ab | 5142 | #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT |
bf4acbe4 | 5143 | #endif |
9c8a64f0 | 5144 | /* .../version/archname if -d .../version/archname */ |
084592ab | 5145 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, |
f2139bd3 | 5146 | (void*)libdir, |
9c8a64f0 GS |
5147 | (int)PERL_REVISION, (int)PERL_VERSION, |
5148 | (int)PERL_SUBVERSION, ARCHNAME); | |
3c71ae1e | 5149 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4b03c463 | 5150 | |
9c8a64f0 | 5151 | /* .../version if -d .../version */ |
f2139bd3 JH |
5152 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, |
5153 | (void*)libdir, | |
9c8a64f0 GS |
5154 | (int)PERL_REVISION, (int)PERL_VERSION, |
5155 | (int)PERL_SUBVERSION); | |
3c71ae1e | 5156 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5157 | |
5158 | /* .../archname if -d .../archname */ | |
f2139bd3 JH |
5159 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, |
5160 | (void*)libdir, ARCHNAME); | |
3c71ae1e NC |
5161 | subdir = S_incpush_if_exists(aTHX_ subdir); |
5162 | ||
29d82f8d | 5163 | } |
9c8a64f0 | 5164 | |
9c8a64f0 | 5165 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 5166 | if (addoldvers) { |
9c8a64f0 GS |
5167 | for (incver = incverlist; *incver; incver++) { |
5168 | /* .../xxx if -d .../xxx */ | |
16563954 | 5169 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, (void *)libdir, *incver); |
3c71ae1e | 5170 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5171 | } |
5172 | } | |
29d82f8d | 5173 | #endif |
774d564b | 5174 | } |
5175 | ||
5176 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 5177 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 5178 | } |
3c71ae1e NC |
5179 | if (subdir) { |
5180 | assert (SvREFCNT(subdir) == 1); | |
5181 | SvREFCNT_dec(subdir); | |
5182 | } | |
34de22dd | 5183 | } |
93a17b20 | 5184 | |
4d1ff10f | 5185 | #ifdef USE_5005THREADS |
76e3520e | 5186 | STATIC struct perl_thread * |
cea2e8a9 | 5187 | S_init_main_thread(pTHX) |
199100c8 | 5188 | { |
c5be433b | 5189 | #if !defined(PERL_IMPLICIT_CONTEXT) |
52e1cb5e | 5190 | struct perl_thread *thr; |
cea2e8a9 | 5191 | #endif |
199100c8 MB |
5192 | XPV *xpv; |
5193 | ||
cd7a8267 | 5194 | Newxz(thr, 1, struct perl_thread); |
533c011a | 5195 | PL_curcop = &PL_compiling; |
c5be433b | 5196 | thr->interp = PERL_GET_INTERP; |
199100c8 | 5197 | thr->cvcache = newHV(); |
54b9620d | 5198 | thr->threadsv = newAV(); |
940cb80d | 5199 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 MB |
5200 | thr->specific = newAV(); |
5201 | thr->flags = THRf_R_JOINABLE; | |
5202 | MUTEX_INIT(&thr->mutex); | |
5203 | /* Handcraft thrsv similarly to mess_sv */ | |
cd7a8267 JC |
5204 | Newx(PL_thrsv, 1, SV); |
5205 | Newxz(xpv, 1, XPV); | |
533c011a NIS |
5206 | SvFLAGS(PL_thrsv) = SVt_PV; |
5207 | SvANY(PL_thrsv) = (void*)xpv; | |
5208 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ | |
f011281f | 5209 | SvPV_set(PL_thrsv, (char*)thr); |
533c011a NIS |
5210 | SvCUR_set(PL_thrsv, sizeof(thr)); |
5211 | SvLEN_set(PL_thrsv, sizeof(thr)); | |
5212 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ | |
5213 | thr->oursv = PL_thrsv; | |
5214 | PL_chopset = " \n-"; | |
3967c732 | 5215 | PL_dumpindent = 4; |
533c011a NIS |
5216 | |
5217 | MUTEX_LOCK(&PL_threads_mutex); | |
5218 | PL_nthreads++; | |
199100c8 MB |
5219 | thr->tid = 0; |
5220 | thr->next = thr; | |
5221 | thr->prev = thr; | |
8dcd6f7b | 5222 | thr->thr_done = 0; |
533c011a | 5223 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 | 5224 | |
4b026b9e | 5225 | #ifdef HAVE_THREAD_INTERN |
4f63d024 | 5226 | Perl_init_thread_intern(thr); |
235db74f GS |
5227 | #endif |
5228 | ||
5229 | #ifdef SET_THREAD_SELF | |
5230 | SET_THREAD_SELF(thr); | |
199100c8 MB |
5231 | #else |
5232 | thr->self = pthread_self(); | |
235db74f | 5233 | #endif /* SET_THREAD_SELF */ |
06d86050 | 5234 | PERL_SET_THX(thr); |
199100c8 MB |
5235 | |
5236 | /* | |
411caa50 JH |
5237 | * These must come after the thread self setting |
5238 | * because sv_setpvn does SvTAINT and the taint | |
5239 | * fields thread selfness being set. | |
199100c8 | 5240 | */ |
133cdda0 | 5241 | PL_toptarget = newSV(0); |
533c011a NIS |
5242 | sv_upgrade(PL_toptarget, SVt_PVFM); |
5243 | sv_setpvn(PL_toptarget, "", 0); | |
133cdda0 | 5244 | PL_bodytarget = newSV(0); |
533c011a NIS |
5245 | sv_upgrade(PL_bodytarget, SVt_PVFM); |
5246 | sv_setpvn(PL_bodytarget, "", 0); | |
5247 | PL_formtarget = PL_bodytarget; | |
d7559646 | 5248 | thr->errsv = newSVpvs(""); |
78857c3c | 5249 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 | 5250 | |
533c011a | 5251 | PL_maxscream = -1; |
a2efc822 | 5252 | PL_peepp = MEMBER_TO_FPTR(Perl_peep); |
0b94c7bb GS |
5253 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
5254 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); | |
5255 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); | |
5256 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); | |
5257 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); | |
533c011a NIS |
5258 | PL_regindent = 0; |
5259 | PL_reginterp_cnt = 0; | |
5c0ca799 | 5260 | |
199100c8 MB |
5261 | return thr; |
5262 | } | |
4d1ff10f | 5263 | #endif /* USE_5005THREADS */ |
199100c8 | 5264 | |
93a17b20 | 5265 | void |
864dbfa3 | 5266 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 5267 | { |
971a9dd3 | 5268 | SV *atsv; |
42a5fb54 | 5269 | const line_t oldline = PL_curcop ? CopLINE(PL_curcop) : 0; |
312caa8e | 5270 | CV *cv; |
22921e25 | 5271 | STRLEN len; |
6224f72b | 5272 | int ret; |
db36c5a1 | 5273 | dJMPENV; |
93a17b20 | 5274 | |
c05e0e2f | 5275 | while (av_len(paramList) >= 0) { |
312caa8e | 5276 | cv = (CV*)av_shift(paramList); |
5b7ea690 JH |
5277 | if (PL_savebegin) { |
5278 | if (paramList == PL_beginav) { | |
059a8bb7 | 5279 | /* save PL_beginav for compiler */ |
5b7ea690 JH |
5280 | if (! PL_beginav_save) |
5281 | PL_beginav_save = newAV(); | |
5282 | av_push(PL_beginav_save, (SV*)cv); | |
5283 | } | |
5284 | else if (paramList == PL_checkav) { | |
5285 | /* save PL_checkav for compiler */ | |
5286 | if (! PL_checkav_save) | |
5287 | PL_checkav_save = newAV(); | |
5288 | av_push(PL_checkav_save, (SV*)cv); | |
5289 | } | |
059a8bb7 JH |
5290 | } else { |
5291 | SAVEFREESV(cv); | |
5292 | } | |
14dd3ad8 GS |
5293 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
5294 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv); | |
5295 | #else | |
5296 | JMPENV_PUSH(ret); | |
5297 | #endif | |
6224f72b | 5298 | switch (ret) { |
312caa8e | 5299 | case 0: |
14dd3ad8 GS |
5300 | #ifndef PERL_FLEXIBLE_EXCEPTIONS |
5301 | call_list_body(cv); | |
5302 | #endif | |
971a9dd3 | 5303 | atsv = ERRSV; |
c06c673c | 5304 | (void)SvPV_const(atsv, len); |
312caa8e CS |
5305 | if (len) { |
5306 | PL_curcop = &PL_compiling; | |
57843af0 | 5307 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5308 | if (paramList == PL_beginav) |
d7559646 | 5309 | sv_catpvs(atsv, "BEGIN failed--compilation aborted"); |
312caa8e | 5310 | else |
4f25aa18 GS |
5311 | Perl_sv_catpvf(aTHX_ atsv, |
5312 | "%s failed--call queue aborted", | |
7d30b5c4 | 5313 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
5314 | : paramList == PL_initav ? "INIT" |
5315 | : "END"); | |
312caa8e CS |
5316 | while (PL_scopestack_ix > oldscope) |
5317 | LEAVE; | |
14dd3ad8 | 5318 | JMPENV_POP; |
f2139bd3 | 5319 | Perl_croak(aTHX_ "%"SVf"", (void*)atsv); |
a0d0e21e | 5320 | } |
85e6fe83 | 5321 | break; |
6224f72b | 5322 | case 1: |
f86702cc | 5323 | STATUS_ALL_FAILURE; |
85e6fe83 | 5324 | /* FALL THROUGH */ |
6224f72b | 5325 | case 2: |
85e6fe83 | 5326 | /* my_exit() was called */ |
3280af22 | 5327 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 5328 | LEAVE; |
84902520 | 5329 | FREETMPS; |
3280af22 | 5330 | PL_curstash = PL_defstash; |
3280af22 | 5331 | PL_curcop = &PL_compiling; |
57843af0 | 5332 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 5333 | JMPENV_POP; |
cc3604b1 | 5334 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { |
3280af22 | 5335 | if (paramList == PL_beginav) |
cea2e8a9 | 5336 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 5337 | else |
4f25aa18 | 5338 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
7d30b5c4 | 5339 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
5340 | : paramList == PL_initav ? "INIT" |
5341 | : "END"); | |
85e6fe83 | 5342 | } |
f86702cc | 5343 | my_exit_jump(); |
85e6fe83 | 5344 | /* NOTREACHED */ |
6224f72b | 5345 | case 3: |
312caa8e CS |
5346 | if (PL_restartop) { |
5347 | PL_curcop = &PL_compiling; | |
57843af0 | 5348 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5349 | JMPENV_JUMP(3); |
85e6fe83 | 5350 | } |
bf49b057 | 5351 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
5352 | FREETMPS; |
5353 | break; | |
8990e307 | 5354 | } |
14dd3ad8 | 5355 | JMPENV_POP; |
93a17b20 | 5356 | } |
93a17b20 | 5357 | } |
93a17b20 | 5358 | |
14dd3ad8 | 5359 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 5360 | STATIC void * |
14dd3ad8 | 5361 | S_vcall_list_body(pTHX_ va_list args) |
312caa8e | 5362 | { |
312caa8e | 5363 | CV *cv = va_arg(args, CV*); |
14dd3ad8 GS |
5364 | return call_list_body(cv); |
5365 | } | |
5366 | #endif | |
312caa8e | 5367 | |
14dd3ad8 GS |
5368 | STATIC void * |
5369 | S_call_list_body(pTHX_ CV *cv) | |
5370 | { | |
312caa8e | 5371 | PUSHMARK(PL_stack_sp); |
864dbfa3 | 5372 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e CS |
5373 | return NULL; |
5374 | } | |
5375 | ||
f86702cc | 5376 | void |
864dbfa3 | 5377 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 5378 | { |
8b73bbec | 5379 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 5380 | thr, (unsigned long) status)); |
f86702cc | 5381 | switch (status) { |
5382 | case 0: | |
5383 | STATUS_ALL_SUCCESS; | |
5384 | break; | |
5385 | case 1: | |
5386 | STATUS_ALL_FAILURE; | |
5387 | break; | |
5388 | default: | |
b14528dd | 5389 | STATUS_EXIT_SET(status); |
f86702cc | 5390 | break; |
5391 | } | |
5392 | my_exit_jump(); | |
5393 | } | |
5394 | ||
5395 | void | |
864dbfa3 | 5396 | Perl_my_failure_exit(pTHX) |
f86702cc | 5397 | { |
5398 | #ifdef VMS | |
b14528dd NC |
5399 | /* We have been called to fall on our sword. The desired exit code |
5400 | * should be already set in STATUS_UNIX, but could be shifted over | |
5401 | * by 8 bits. STATUS_UNIX_EXIT_SET will handle the cases where a | |
5402 | * that code is set. | |
5403 | * | |
5404 | * If an error code has not been set, then force the issue. | |
5405 | */ | |
5406 | if (MY_POSIX_EXIT) { | |
5407 | ||
5408 | /* In POSIX_EXIT mode follow Perl documentations and use 255 for | |
5409 | * the exit code when there isn't an error. | |
5410 | */ | |
5411 | ||
5412 | if (STATUS_UNIX == 0) | |
5413 | STATUS_UNIX_EXIT_SET(255); | |
5414 | else { | |
5415 | STATUS_UNIX_EXIT_SET(STATUS_UNIX); | |
5416 | ||
5417 | /* The exit code could have been set by $? or vmsish which | |
5418 | * means that it may not be fatal. So convert | |
5419 | * success/warning codes to fatal. | |
5420 | */ | |
5421 | if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) | |
5422 | STATUS_UNIX_EXIT_SET(255); | |
5423 | } | |
f86702cc | 5424 | } |
5425 | else { | |
b14528dd NC |
5426 | /* Traditionally Perl on VMS always expects a Fatal Error. */ |
5427 | if (vaxc$errno & 1) { | |
5428 | ||
5429 | /* So force success status to failure */ | |
5430 | if (STATUS_NATIVE & 1) | |
5431 | STATUS_ALL_FAILURE; | |
5432 | } | |
5433 | else { | |
5434 | if (!vaxc$errno) { | |
5435 | STATUS_UNIX = EINTR; /* In case something cares */ | |
5436 | STATUS_ALL_FAILURE; | |
5437 | } | |
5438 | else { | |
5439 | int severity; | |
5440 | STATUS_NATIVE = vaxc$errno; /* Should already be this */ | |
5441 | ||
5442 | /* Encode the severity code */ | |
5443 | severity = STATUS_NATIVE & STS$M_SEVERITY; | |
5444 | STATUS_UNIX = (severity ? severity : 1) << 8; | |
5445 | ||
5446 | /* Perl expects this to be a fatal error */ | |
5447 | if (severity != STS$K_SEVERE) | |
5448 | STATUS_ALL_FAILURE; | |
5449 | } | |
5450 | } | |
f86702cc | 5451 | } |
b14528dd | 5452 | |
f86702cc | 5453 | #else |
9b599b2a | 5454 | int exitstatus; |
f86702cc | 5455 | if (errno & 255) |
31a9f214 | 5456 | STATUS_UNIX_SET(errno); |
9b599b2a | 5457 | else { |
31a9f214 | 5458 | exitstatus = STATUS_UNIX >> 8; |
9b599b2a | 5459 | if (exitstatus & 255) |
31a9f214 | 5460 | STATUS_UNIX_SET(exitstatus); |
9b599b2a | 5461 | else |
31a9f214 | 5462 | STATUS_UNIX_SET(255); |
9b599b2a | 5463 | } |
f86702cc | 5464 | #endif |
5465 | my_exit_jump(); | |
93a17b20 LW |
5466 | } |
5467 | ||
76e3520e | 5468 | STATIC void |
cea2e8a9 | 5469 | S_my_exit_jump(pTHX) |
f86702cc | 5470 | { |
f86702cc | 5471 | |
3280af22 NIS |
5472 | if (PL_e_script) { |
5473 | SvREFCNT_dec(PL_e_script); | |
0e2d6244 | 5474 | PL_e_script = NULL; |
f86702cc | 5475 | } |
5476 | ||
3280af22 | 5477 | POPSTACK_TO(PL_mainstack); |
6e2c4f80 RH |
5478 | dounwind(-1); |
5479 | LEAVE_SCOPE(0); | |
ff0cee69 | 5480 | |
6224f72b | 5481 | JMPENV_JUMP(2); |
f86702cc | 5482 | } |
873ef191 | 5483 | |
0cb96387 | 5484 | static I32 |
acfe0abc | 5485 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 | 5486 | { |
a2592645 NC |
5487 | const char * const p = SvPVX_const(PL_e_script); |
5488 | const char *nl = strchr(p, '\n'); | |
5489 | ||
5490 | PERL_UNUSED_ARG(idx); | |
5491 | PERL_UNUSED_ARG(maxlen); | |
0473add9 | 5492 | |
3280af22 | 5493 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 5494 | if (nl-p == 0) { |
0cb96387 | 5495 | filter_del(read_e_script); |
873ef191 | 5496 | return 0; |
7dfe3f66 | 5497 | } |
873ef191 | 5498 | sv_catpvn(buf_sv, p, nl-p); |
15479b4d | 5499 | sv_chop(PL_e_script, (char *) nl); |
873ef191 GS |
5500 | return 1; |
5501 | } | |
d8294a4d NC |
5502 | |
5503 | /* | |
5504 | * Local variables: | |
5505 | * c-indentation-style: bsd | |
5506 | * c-basic-offset: 4 | |
5507 | * indent-tabs-mode: t | |
5508 | * End: | |
5509 | * | |
5510 | * ex: set ts=8 sts=4 sw=4 noet: | |
5511 | */ |