Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
fdf8c088 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 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 | |
166f8a29 DM |
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() | |
ddfa107c | 18 | * function of the interpreter; that can be found in perlmain.c |
166f8a29 DM |
19 | */ |
20 | ||
ae3f3efd 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 | |
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 | |
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 | * | |
39 | * (Opening the script in perl instead of suidperl, we "lose" scripts that | |
40 | * are readable to the target UID but not to the invoker. Where did | |
41 | * unreadable scripts work anyway?) | |
42 | * | |
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). | |
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 | |
2aa47728 NC |
95 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
96 | # ifdef I_SYS_WAIT | |
97 | # include <sys/wait.h> | |
98 | # endif | |
bf357333 NC |
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 | ||
2aa47728 NC |
108 | #endif |
109 | ||
5311654c 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 | |
ae3f3efd | 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 | |
d6f07c05 AL |
140 | #define CALL_BODY_EVAL(myop) \ |
141 | if (PL_op == (myop)) \ | |
142 | PL_op = Perl_pp_entereval(aTHX); \ | |
143 | if (PL_op) \ | |
144 | CALLRUNOPS(aTHX); | |
145 | ||
146 | #define CALL_BODY_SUB(myop) \ | |
147 | if (PL_op == (myop)) \ | |
148 | PL_op = Perl_pp_entersub(aTHX); \ | |
149 | if (PL_op) \ | |
150 | CALLRUNOPS(aTHX); | |
151 | ||
152 | #define CALL_LIST_BODY(cv) \ | |
153 | PUSHMARK(PL_stack_sp); \ | |
154 | call_sv((SV*)(cv), G_EVAL|G_DISCARD); | |
155 | ||
e6827a76 | 156 | static void |
daa7d858 | 157 | S_init_tls_and_interp(PerlInterpreter *my_perl) |
e6827a76 | 158 | { |
27da23d5 | 159 | dVAR; |
e6827a76 NC |
160 | if (!PL_curinterp) { |
161 | PERL_SET_INTERP(my_perl); | |
3db8f154 | 162 | #if defined(USE_ITHREADS) |
e6827a76 NC |
163 | INIT_THREADS; |
164 | ALLOC_THREAD_KEY; | |
165 | PERL_SET_THX(my_perl); | |
166 | OP_REFCNT_INIT; | |
71ad1b0c | 167 | HINTS_REFCNT_INIT; |
e6827a76 | 168 | MUTEX_INIT(&PL_dollarzero_mutex); |
06d86050 | 169 | # endif |
016af4f1 DM |
170 | #ifdef PERL_IMPLICIT_CONTEXT |
171 | MUTEX_INIT(&PL_my_ctx_mutex); | |
172 | # endif | |
e6827a76 NC |
173 | } |
174 | else { | |
175 | PERL_SET_THX(my_perl); | |
176 | } | |
177 | } | |
06d86050 | 178 | |
32e30700 GS |
179 | #ifdef PERL_IMPLICIT_SYS |
180 | PerlInterpreter * | |
7766f137 GS |
181 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
182 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
183 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
184 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
185 | struct IPerlProc* ipP) | |
186 | { | |
187 | PerlInterpreter *my_perl; | |
9f653bb5 | 188 | /* Newx() needs interpreter, so call malloc() instead */ |
32e30700 | 189 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
e6827a76 | 190 | S_init_tls_and_interp(my_perl); |
32e30700 GS |
191 | Zero(my_perl, 1, PerlInterpreter); |
192 | PL_Mem = ipM; | |
7766f137 GS |
193 | PL_MemShared = ipMS; |
194 | PL_MemParse = ipMP; | |
32e30700 GS |
195 | PL_Env = ipE; |
196 | PL_StdIO = ipStd; | |
197 | PL_LIO = ipLIO; | |
198 | PL_Dir = ipD; | |
199 | PL_Sock = ipS; | |
200 | PL_Proc = ipP; | |
7cb608b5 | 201 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); |
7766f137 | 202 | |
32e30700 GS |
203 | return my_perl; |
204 | } | |
205 | #else | |
954c1994 GS |
206 | |
207 | /* | |
ccfc67b7 JH |
208 | =head1 Embedding Functions |
209 | ||
954c1994 GS |
210 | =for apidoc perl_alloc |
211 | ||
212 | Allocates a new Perl interpreter. See L<perlembed>. | |
213 | ||
214 | =cut | |
215 | */ | |
216 | ||
93a17b20 | 217 | PerlInterpreter * |
cea2e8a9 | 218 | perl_alloc(void) |
79072805 | 219 | { |
cea2e8a9 | 220 | PerlInterpreter *my_perl; |
79072805 | 221 | |
9f653bb5 | 222 | /* Newx() needs interpreter, so call malloc() instead */ |
e8ee3774 | 223 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 224 | |
e6827a76 | 225 | S_init_tls_and_interp(my_perl); |
7cb608b5 | 226 | #ifndef PERL_TRACK_MEMPOOL |
07409e01 | 227 | return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter); |
7cb608b5 NC |
228 | #else |
229 | Zero(my_perl, 1, PerlInterpreter); | |
230 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); | |
231 | return my_perl; | |
232 | #endif | |
79072805 | 233 | } |
32e30700 | 234 | #endif /* PERL_IMPLICIT_SYS */ |
79072805 | 235 | |
954c1994 GS |
236 | /* |
237 | =for apidoc perl_construct | |
238 | ||
239 | Initializes a new Perl interpreter. See L<perlembed>. | |
240 | ||
241 | =cut | |
242 | */ | |
243 | ||
79072805 | 244 | void |
0cb96387 | 245 | perl_construct(pTHXx) |
79072805 | 246 | { |
27da23d5 | 247 | dVAR; |
ed6c66dd | 248 | PERL_UNUSED_ARG(my_perl); |
8990e307 | 249 | #ifdef MULTIPLICITY |
54aff467 | 250 | init_interp(); |
ac27b0f5 | 251 | PL_perl_destruct_level = 1; |
54aff467 GS |
252 | #else |
253 | if (PL_perl_destruct_level > 0) | |
254 | init_interp(); | |
255 | #endif | |
33f46ff6 | 256 | /* Init the real globals (and main thread)? */ |
3280af22 | 257 | if (!PL_linestr) { |
2aea9f8a GS |
258 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
259 | ||
561b68a9 | 260 | PL_linestr = newSV(79); |
3280af22 | 261 | sv_upgrade(PL_linestr,SVt_PVIV); |
79072805 | 262 | |
3280af22 | 263 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
264 | /* set read-only and try to insure than we wont see REFCNT==0 |
265 | very often */ | |
266 | ||
3280af22 NIS |
267 | SvREADONLY_on(&PL_sv_undef); |
268 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 269 | |
3280af22 | 270 | sv_setpv(&PL_sv_no,PL_No); |
0309f36e NC |
271 | /* value lookup in void context - happens to have the side effect |
272 | of caching the numeric forms. */ | |
273 | SvIV(&PL_sv_no); | |
3280af22 NIS |
274 | SvNV(&PL_sv_no); |
275 | SvREADONLY_on(&PL_sv_no); | |
276 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 277 | |
3280af22 | 278 | sv_setpv(&PL_sv_yes,PL_Yes); |
0309f36e | 279 | SvIV(&PL_sv_yes); |
3280af22 NIS |
280 | SvNV(&PL_sv_yes); |
281 | SvREADONLY_on(&PL_sv_yes); | |
282 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
7996736c MHM |
283 | |
284 | SvREADONLY_on(&PL_sv_placeholder); | |
285 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
6e72f9df | 286 | } |
79072805 | 287 | |
8aad04aa | 288 | PL_sighandlerp = (Sighandler_t) Perl_sighandler; |
ca0c25f6 | 289 | #ifdef PERL_USES_PL_PIDSTATUS |
3280af22 | 290 | PL_pidstatus = newHV(); |
ca0c25f6 | 291 | #endif |
79072805 LW |
292 | } |
293 | ||
396482e1 | 294 | PL_rs = newSVpvs("\n"); |
dc92893f | 295 | |
cea2e8a9 | 296 | init_stacks(); |
79072805 | 297 | |
748a9306 | 298 | init_ids(); |
3280af22 | 299 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 300 | |
312caa8e | 301 | JMPENV_BOOTSTRAP; |
f86702cc | 302 | STATUS_ALL_SUCCESS; |
303 | ||
0672f40e | 304 | init_i18nl10n(1); |
36477c24 | 305 | SET_NUMERIC_STANDARD(); |
0b5b802d | 306 | |
ab821d7f | 307 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 308 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 309 | #endif |
310 | ||
52853b95 GS |
311 | #ifdef HAVE_INTERP_INTERN |
312 | sys_intern_init(); | |
313 | #endif | |
314 | ||
3a1ee7e8 | 315 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 316 | |
3280af22 NIS |
317 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
318 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
396482e1 | 319 | PL_errors = newSVpvs(""); |
48c6b404 | 320 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
321 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
322 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
1fcf4c12 | 323 | #ifdef USE_ITHREADS |
13137afc AB |
324 | PL_regex_padav = newAV(); |
325 | av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */ | |
326 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 327 | #endif |
e5dd39fc | 328 | #ifdef USE_REENTRANT_API |
59bd0823 | 329 | Perl_reentrant_init(aTHX); |
e5dd39fc | 330 | #endif |
3d47000e AB |
331 | |
332 | /* Note that strtab is a rather special HV. Assumptions are made | |
333 | about not iterating on it, and not adding tie magic to it. | |
334 | It is properly deallocated in perl_destruct() */ | |
335 | PL_strtab = newHV(); | |
336 | ||
3d47000e AB |
337 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
338 | hv_ksplit(PL_strtab, 512); | |
339 | ||
0631ea03 AB |
340 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
341 | _dyld_lookup_and_bind | |
342 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
343 | #endif /* environ */ | |
344 | ||
2f42fcb0 JH |
345 | #ifndef PERL_MICRO |
346 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 347 | PL_origenviron = environ; |
2f42fcb0 | 348 | # endif |
0631ea03 AB |
349 | #endif |
350 | ||
5311654c | 351 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
dbc1d986 | 352 | * available or if the sysconf() fails, use the HZ. |
27da23d5 JH |
353 | * BeOS has those, but returns the wrong value. |
354 | * The HZ if not originally defined has been by now | |
355 | * been defined as CLK_TCK, if available. */ | |
dbc1d986 | 356 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) |
5311654c JH |
357 | PL_clocktick = sysconf(_SC_CLK_TCK); |
358 | if (PL_clocktick <= 0) | |
359 | #endif | |
360 | PL_clocktick = HZ; | |
361 | ||
081fc587 AB |
362 | PL_stashcache = newHV(); |
363 | ||
e6830b13 NC |
364 | PL_patchlevel = Perl_newSVpvf(aTHX_ "%d.%d.%d", (int)PERL_REVISION, |
365 | (int)PERL_VERSION, (int)PERL_SUBVERSION); | |
d7aa5382 | 366 | |
27da23d5 JH |
367 | #ifdef HAS_MMAP |
368 | if (!PL_mmap_page_size) { | |
369 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) | |
370 | { | |
371 | SETERRNO(0, SS_NORMAL); | |
372 | # ifdef _SC_PAGESIZE | |
373 | PL_mmap_page_size = sysconf(_SC_PAGESIZE); | |
374 | # else | |
375 | PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); | |
376 | # endif | |
377 | if ((long) PL_mmap_page_size < 0) { | |
378 | if (errno) { | |
44f8325f | 379 | SV * const error = ERRSV; |
d4c19fe8 | 380 | SvUPGRADE(error, SVt_PV); |
0510663f | 381 | Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); |
27da23d5 JH |
382 | } |
383 | else | |
384 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); | |
385 | } | |
386 | } | |
387 | #else | |
388 | # ifdef HAS_GETPAGESIZE | |
389 | PL_mmap_page_size = getpagesize(); | |
390 | # else | |
391 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
392 | PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ | |
393 | # endif | |
394 | # endif | |
395 | #endif | |
396 | if (PL_mmap_page_size <= 0) | |
397 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
398 | (IV) PL_mmap_page_size); | |
399 | } | |
400 | #endif /* HAS_MMAP */ | |
401 | ||
402 | #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) | |
403 | PL_timesbase.tms_utime = 0; | |
404 | PL_timesbase.tms_stime = 0; | |
405 | PL_timesbase.tms_cutime = 0; | |
406 | PL_timesbase.tms_cstime = 0; | |
407 | #endif | |
408 | ||
5336380d NC |
409 | #ifdef PERL_MAD |
410 | PL_curforce = -1; | |
411 | #endif | |
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 | { |
96a5add6 | 428 | PERL_UNUSED_CONTEXT; |
62375a60 NIS |
429 | return 0; |
430 | } | |
431 | ||
41e4abd8 NC |
432 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
433 | void | |
434 | Perl_dump_sv_child(pTHX_ SV *sv) | |
435 | { | |
436 | ssize_t got; | |
bf357333 NC |
437 | const int sock = PL_dumper_fd; |
438 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
bf357333 NC |
439 | union control_un control; |
440 | struct msghdr msg; | |
808ad2d0 | 441 | struct iovec vec[2]; |
bf357333 | 442 | struct cmsghdr *cmptr; |
808ad2d0 NC |
443 | int returned_errno; |
444 | unsigned char buffer[256]; | |
41e4abd8 | 445 | |
bf357333 | 446 | if(sock == -1 || debug_fd == -1) |
41e4abd8 NC |
447 | return; |
448 | ||
449 | PerlIO_flush(Perl_debug_log); | |
450 | ||
bf357333 NC |
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 | |
b293a5f8 | 455 | be open, the wait would be forever.) */ |
bf357333 NC |
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; | |
808ad2d0 | 463 | msg.msg_iovlen = 1; |
bf357333 NC |
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); | |
41e4abd8 NC |
474 | |
475 | if(got < 0) { | |
bf357333 | 476 | perror("Debug leaking scalars parent sendmsg failed"); |
41e4abd8 NC |
477 | abort(); |
478 | } | |
bf357333 NC |
479 | if(got < sizeof(sv)) { |
480 | perror("Debug leaking scalars parent short sendmsg"); | |
41e4abd8 NC |
481 | abort(); |
482 | } | |
483 | ||
808ad2d0 NC |
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); | |
41e4abd8 NC |
495 | |
496 | if(got < 0) { | |
497 | perror("Debug leaking scalars parent read failed"); | |
808ad2d0 | 498 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
499 | abort(); |
500 | } | |
808ad2d0 | 501 | if(got < sizeof(returned_errno) + 1) { |
41e4abd8 | 502 | perror("Debug leaking scalars parent short read"); |
808ad2d0 | 503 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
504 | abort(); |
505 | } | |
506 | ||
808ad2d0 NC |
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)); | |
41e4abd8 NC |
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 | { |
27da23d5 | 541 | dVAR; |
8ea43dc8 | 542 | VOL int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
a0d0e21e | 543 | HV *hv; |
2aa47728 | 544 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
2aa47728 NC |
545 | pid_t child; |
546 | #endif | |
8990e307 | 547 | |
ed6c66dd | 548 | PERL_UNUSED_ARG(my_perl); |
9d4ba2ae | 549 | |
7766f137 GS |
550 | /* wait for all pseudo-forked children to finish */ |
551 | PERL_WAIT_FOR_CHILDREN; | |
552 | ||
3280af22 | 553 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
554 | #ifdef DEBUGGING |
555 | { | |
9d4ba2ae AL |
556 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); |
557 | if (s) { | |
e1ec3a88 | 558 | const int i = atoi(s); |
5f05dabc | 559 | if (destruct_level < i) |
560 | destruct_level = i; | |
561 | } | |
4633a7c4 LW |
562 | } |
563 | #endif | |
564 | ||
27da23d5 | 565 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
566 | dJMPENV; |
567 | int x = 0; | |
568 | ||
569 | JMPENV_PUSH(x); | |
1b6737cc | 570 | PERL_UNUSED_VAR(x); |
f3faeb53 AB |
571 | if (PL_endav && !PL_minus_c) |
572 | call_list(PL_scopestack_ix, PL_endav); | |
573 | JMPENV_POP; | |
26f423df | 574 | } |
f3faeb53 | 575 | LEAVE; |
a0d0e21e LW |
576 | FREETMPS; |
577 | ||
e00b64d4 | 578 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 579 | my_fflush_all(); |
e00b64d4 | 580 | |
62375a60 NIS |
581 | if (CALL_FPTR(PL_threadhook)(aTHX)) { |
582 | /* Threads hook has vetoed further cleanup */ | |
37038d91 | 583 | return STATUS_EXIT; |
62375a60 NIS |
584 | } |
585 | ||
2aa47728 NC |
586 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
587 | if (destruct_level != 0) { | |
588 | /* Fork here to create a child. Our child's job is to preserve the | |
589 | state of scalars prior to destruction, so that we can instruct it | |
590 | to dump any scalars that we later find have leaked. | |
591 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
592 | fail gracefully */ | |
593 | int fd[2]; | |
594 | ||
595 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
596 | perror("Debug leaking scalars socketpair failed"); | |
597 | abort(); | |
598 | } | |
599 | ||
600 | child = fork(); | |
601 | if(child == -1) { | |
602 | perror("Debug leaking scalars fork failed"); | |
603 | abort(); | |
604 | } | |
605 | if (!child) { | |
606 | /* We are the child */ | |
3125a5a4 NC |
607 | const int sock = fd[1]; |
608 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
609 | int f; | |
808ad2d0 NC |
610 | const char *where; |
611 | /* Our success message is an integer 0, and a char 0 */ | |
612 | static const char success[sizeof(int) + 1]; | |
3125a5a4 | 613 | |
2aa47728 | 614 | close(fd[0]); |
2aa47728 | 615 | |
3125a5a4 NC |
616 | /* We need to close all other file descriptors otherwise we end up |
617 | with interesting hangs, where the parent closes its end of a | |
618 | pipe, and sits waiting for (another) child to terminate. Only | |
619 | that child never terminates, because it never gets EOF, because | |
bf357333 NC |
620 | we also have the far end of the pipe open. We even need to |
621 | close the debugging fd, because sometimes it happens to be one | |
622 | end of a pipe, and a process is waiting on the other end for | |
623 | EOF. Normally it would be closed at some point earlier in | |
624 | destruction, but if we happen to cause the pipe to remain open, | |
625 | EOF never occurs, and we get an infinite hang. Hence all the | |
626 | games to pass in a file descriptor if it's actually needed. */ | |
3125a5a4 NC |
627 | |
628 | f = sysconf(_SC_OPEN_MAX); | |
629 | if(f < 0) { | |
808ad2d0 NC |
630 | where = "sysconf failed"; |
631 | goto abort; | |
3125a5a4 NC |
632 | } |
633 | while (f--) { | |
634 | if (f == sock) | |
635 | continue; | |
3125a5a4 NC |
636 | close(f); |
637 | } | |
638 | ||
2aa47728 NC |
639 | while (1) { |
640 | SV *target; | |
bf357333 NC |
641 | union control_un control; |
642 | struct msghdr msg; | |
643 | struct iovec vec[1]; | |
644 | struct cmsghdr *cmptr; | |
645 | ssize_t got; | |
646 | int got_fd; | |
647 | ||
648 | msg.msg_control = control.control; | |
649 | msg.msg_controllen = sizeof(control.control); | |
650 | /* We're a connected socket so we don't need a source */ | |
651 | msg.msg_name = NULL; | |
652 | msg.msg_namelen = 0; | |
653 | msg.msg_iov = vec; | |
654 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
655 | ||
656 | vec[0].iov_base = (void*)⌖ | |
657 | vec[0].iov_len = sizeof(target); | |
658 | ||
659 | got = recvmsg(sock, &msg, 0); | |
2aa47728 NC |
660 | |
661 | if(got == 0) | |
662 | break; | |
663 | if(got < 0) { | |
808ad2d0 NC |
664 | where = "recv failed"; |
665 | goto abort; | |
2aa47728 NC |
666 | } |
667 | if(got < sizeof(target)) { | |
808ad2d0 NC |
668 | where = "short recv"; |
669 | goto abort; | |
2aa47728 | 670 | } |
bf357333 | 671 | |
808ad2d0 NC |
672 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { |
673 | where = "no cmsg"; | |
674 | goto abort; | |
675 | } | |
676 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
677 | where = "wrong cmsg_len"; | |
678 | goto abort; | |
679 | } | |
680 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
681 | where = "wrong cmsg_level"; | |
682 | goto abort; | |
683 | } | |
684 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
685 | where = "wrong cmsg_type"; | |
686 | goto abort; | |
687 | } | |
bf357333 NC |
688 | |
689 | got_fd = *(int*)CMSG_DATA(cmptr); | |
690 | /* For our last little bit of trickery, put the file descriptor | |
691 | back into Perl_debug_log, as if we never actually closed it | |
692 | */ | |
808ad2d0 NC |
693 | if(got_fd != debug_fd) { |
694 | if (dup2(got_fd, debug_fd) == -1) { | |
695 | where = "dup2"; | |
696 | goto abort; | |
697 | } | |
698 | } | |
2aa47728 | 699 | sv_dump(target); |
bf357333 | 700 | |
2aa47728 NC |
701 | PerlIO_flush(Perl_debug_log); |
702 | ||
808ad2d0 | 703 | got = write(sock, &success, sizeof(success)); |
2aa47728 NC |
704 | |
705 | if(got < 0) { | |
808ad2d0 NC |
706 | where = "write failed"; |
707 | goto abort; | |
2aa47728 | 708 | } |
808ad2d0 NC |
709 | if(got < sizeof(success)) { |
710 | where = "short write"; | |
711 | goto abort; | |
2aa47728 NC |
712 | } |
713 | } | |
714 | _exit(0); | |
808ad2d0 NC |
715 | abort: |
716 | { | |
717 | int send_errno = errno; | |
718 | unsigned char length = (unsigned char) strlen(where); | |
719 | struct iovec failure[3] = { | |
720 | {(void*)&send_errno, sizeof(send_errno)}, | |
721 | {&length, 1}, | |
722 | {(void*)where, length} | |
723 | }; | |
724 | int got = writev(sock, failure, 3); | |
725 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
726 | in the parent if we try to read from the socketpair after the | |
727 | child has exited, even if there was data to read. | |
728 | So sleep a bit to give the parent a fighting chance of | |
729 | reading the data. */ | |
730 | sleep(2); | |
731 | _exit((got == -1) ? errno : 0); | |
732 | } | |
bf357333 | 733 | /* End of child. */ |
2aa47728 | 734 | } |
41e4abd8 | 735 | PL_dumper_fd = fd[0]; |
2aa47728 NC |
736 | close(fd[1]); |
737 | } | |
738 | #endif | |
739 | ||
ff0cee69 | 740 | /* We must account for everything. */ |
741 | ||
742 | /* Destroy the main CV and syntax tree */ | |
17fbfdf6 NC |
743 | /* Do this now, because destroying ops can cause new SVs to be generated |
744 | in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they | |
745 | PL_curcop to point to a valid op from which the filename structure | |
746 | member is copied. */ | |
747 | PL_curcop = &PL_compiling; | |
3280af22 | 748 | if (PL_main_root) { |
4e380990 DM |
749 | /* ensure comppad/curpad to refer to main's pad */ |
750 | if (CvPADLIST(PL_main_cv)) { | |
751 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
752 | } | |
3280af22 | 753 | op_free(PL_main_root); |
5f66b61c | 754 | PL_main_root = NULL; |
a0d0e21e | 755 | } |
5f66b61c | 756 | PL_main_start = NULL; |
3280af22 | 757 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 758 | PL_main_cv = NULL; |
24d3c518 | 759 | PL_dirty = TRUE; |
ff0cee69 | 760 | |
13621cfb NIS |
761 | /* Tell PerlIO we are about to tear things apart in case |
762 | we have layers which are using resources that should | |
763 | be cleaned up now. | |
764 | */ | |
765 | ||
766 | PerlIO_destruct(aTHX); | |
767 | ||
3280af22 | 768 | if (PL_sv_objcount) { |
a0d0e21e LW |
769 | /* |
770 | * Try to destruct global references. We do this first so that the | |
771 | * destructors and destructees still exist. Some sv's might remain. | |
772 | * Non-referenced objects are on their own. | |
773 | */ | |
a0d0e21e | 774 | sv_clean_objs(); |
bf9cdc68 | 775 | PL_sv_objcount = 0; |
a0de6cf5 | 776 | if (PL_defoutgv && !SvREFCNT(PL_defoutgv)) |
a0714e2c | 777 | PL_defoutgv = NULL; /* may have been freed */ |
8990e307 LW |
778 | } |
779 | ||
5cd24f17 | 780 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 | 781 | SvREFCNT_dec(PL_warnhook); |
a0714e2c | 782 | PL_warnhook = NULL; |
3280af22 | 783 | SvREFCNT_dec(PL_diehook); |
a0714e2c | 784 | PL_diehook = NULL; |
5cd24f17 | 785 | |
4b556e6c | 786 | /* call exit list functions */ |
3280af22 | 787 | while (PL_exitlistlen-- > 0) |
acfe0abc | 788 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 789 | |
3280af22 | 790 | Safefree(PL_exitlist); |
4b556e6c | 791 | |
1c4916e5 CB |
792 | PL_exitlist = NULL; |
793 | PL_exitlistlen = 0; | |
794 | ||
551a8b83 | 795 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
796 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
797 | * so we certainly shouldn't free it here | |
798 | */ | |
2f42fcb0 | 799 | #ifndef PERL_MICRO |
4b647fb0 | 800 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
50acdf95 | 801 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
802 | #ifdef USE_ITHREADS |
803 | /* only main thread can free environ[0] contents */ | |
804 | && PL_curinterp == aTHX | |
805 | #endif | |
806 | ) | |
807 | { | |
551a8b83 JH |
808 | I32 i; |
809 | ||
810 | for (i = 0; environ[i]; i++) | |
4b420006 | 811 | safesysfree(environ[i]); |
0631ea03 | 812 | |
4b420006 JH |
813 | /* Must use safesysfree() when working with environ. */ |
814 | safesysfree(environ); | |
551a8b83 JH |
815 | |
816 | environ = PL_origenviron; | |
817 | } | |
818 | #endif | |
2f42fcb0 | 819 | #endif /* !PERL_MICRO */ |
551a8b83 | 820 | |
30985c42 JH |
821 | if (destruct_level == 0) { |
822 | ||
823 | DEBUG_P(debprofdump()); | |
824 | ||
825 | #if defined(PERLIO_LAYERS) | |
826 | /* No more IO - including error messages ! */ | |
827 | PerlIO_cleanup(aTHX); | |
828 | #endif | |
829 | ||
830 | CopFILE_free(&PL_compiling); | |
831 | CopSTASH_free(&PL_compiling); | |
832 | ||
833 | /* The exit() function will do everything that needs doing. */ | |
834 | return STATUS_EXIT; | |
835 | } | |
836 | ||
804ffa60 | 837 | /* reset so print() ends up where we expect */ |
a0714e2c | 838 | setdefout(NULL); |
804ffa60 | 839 | |
5f8cb046 DM |
840 | #ifdef USE_ITHREADS |
841 | /* the syntax tree is shared between clones | |
842 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
843 | * REGEXPs in the parent interpreter | |
844 | * we need to manually ReREFCNT_dec for the clones | |
845 | */ | |
846 | { | |
847 | I32 i = AvFILLp(PL_regex_padav) + 1; | |
c4420975 | 848 | SV * const * const ary = AvARRAY(PL_regex_padav); |
5f8cb046 DM |
849 | |
850 | while (i) { | |
c4420975 | 851 | SV * const resv = ary[--i]; |
35061a7e DM |
852 | |
853 | if (SvFLAGS(resv) & SVf_BREAK) { | |
577e12cc | 854 | /* this is PL_reg_curpm, already freed |
35061a7e DM |
855 | * flag is set in regexec.c:S_regtry |
856 | */ | |
857 | SvFLAGS(resv) &= ~SVf_BREAK; | |
3a1ee7e8 | 858 | } |
1cc8b4c5 AB |
859 | else if(SvREPADTMP(resv)) { |
860 | SvREPADTMP_off(resv); | |
861 | } | |
a560f29b NC |
862 | else if(SvIOKp(resv)) { |
863 | REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv)); | |
5f8cb046 DM |
864 | ReREFCNT_dec(re); |
865 | } | |
866 | } | |
867 | } | |
868 | SvREFCNT_dec(PL_regex_padav); | |
7d49f689 | 869 | PL_regex_padav = NULL; |
5f8cb046 DM |
870 | PL_regex_pad = NULL; |
871 | #endif | |
872 | ||
081fc587 AB |
873 | SvREFCNT_dec((SV*) PL_stashcache); |
874 | PL_stashcache = NULL; | |
875 | ||
5f05dabc | 876 | /* loosen bonds of global variables */ |
877 | ||
3280af22 NIS |
878 | if(PL_rsfp) { |
879 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 880 | PL_rsfp = NULL; |
8ebc5c01 | 881 | } |
882 | ||
883 | /* Filters for program text */ | |
3280af22 | 884 | SvREFCNT_dec(PL_rsfp_filters); |
7d49f689 | 885 | PL_rsfp_filters = NULL; |
8ebc5c01 | 886 | |
84386e14 RGS |
887 | if (PL_minus_F) { |
888 | Safefree(PL_splitstr); | |
889 | PL_splitstr = NULL; | |
890 | } | |
891 | ||
8ebc5c01 | 892 | /* switches */ |
3280af22 NIS |
893 | PL_preprocess = FALSE; |
894 | PL_minus_n = FALSE; | |
895 | PL_minus_p = FALSE; | |
896 | PL_minus_l = FALSE; | |
897 | PL_minus_a = FALSE; | |
898 | PL_minus_F = FALSE; | |
899 | PL_doswitches = FALSE; | |
599cee73 | 900 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
901 | PL_doextract = FALSE; |
902 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
903 | PL_unsafe = FALSE; |
904 | ||
905 | Safefree(PL_inplace); | |
bd61b366 | 906 | PL_inplace = NULL; |
a7cb1f99 | 907 | SvREFCNT_dec(PL_patchlevel); |
3280af22 NIS |
908 | |
909 | if (PL_e_script) { | |
910 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 911 | PL_e_script = NULL; |
8ebc5c01 | 912 | } |
913 | ||
bf9cdc68 RG |
914 | PL_perldb = 0; |
915 | ||
8ebc5c01 | 916 | /* magical thingies */ |
917 | ||
7889fe52 | 918 | SvREFCNT_dec(PL_ofs_sv); /* $, */ |
a0714e2c | 919 | PL_ofs_sv = NULL; |
5f05dabc | 920 | |
7889fe52 | 921 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
a0714e2c | 922 | PL_ors_sv = NULL; |
8ebc5c01 | 923 | |
3280af22 | 924 | SvREFCNT_dec(PL_rs); /* $/ */ |
a0714e2c | 925 | PL_rs = NULL; |
dc92893f | 926 | |
d33b2eba | 927 | Safefree(PL_osname); /* $^O */ |
bd61b366 | 928 | PL_osname = NULL; |
5f05dabc | 929 | |
3280af22 | 930 | SvREFCNT_dec(PL_statname); |
a0714e2c SS |
931 | PL_statname = NULL; |
932 | PL_statgv = NULL; | |
5f05dabc | 933 | |
8ebc5c01 | 934 | /* defgv, aka *_ should be taken care of elsewhere */ |
935 | ||
8ebc5c01 | 936 | /* clean up after study() */ |
3280af22 | 937 | SvREFCNT_dec(PL_lastscream); |
a0714e2c | 938 | PL_lastscream = NULL; |
3280af22 NIS |
939 | Safefree(PL_screamfirst); |
940 | PL_screamfirst = 0; | |
941 | Safefree(PL_screamnext); | |
942 | PL_screamnext = 0; | |
8ebc5c01 | 943 | |
7d5ea4e7 GS |
944 | /* float buffer */ |
945 | Safefree(PL_efloatbuf); | |
bd61b366 | 946 | PL_efloatbuf = NULL; |
7d5ea4e7 GS |
947 | PL_efloatsize = 0; |
948 | ||
8ebc5c01 | 949 | /* startup and shutdown function lists */ |
3280af22 | 950 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 951 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 952 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 953 | SvREFCNT_dec(PL_checkav); |
ece599bd | 954 | SvREFCNT_dec(PL_checkav_save); |
3c10abe3 AG |
955 | SvREFCNT_dec(PL_unitcheckav); |
956 | SvREFCNT_dec(PL_unitcheckav_save); | |
3280af22 | 957 | SvREFCNT_dec(PL_initav); |
7d49f689 NC |
958 | PL_beginav = NULL; |
959 | PL_beginav_save = NULL; | |
960 | PL_endav = NULL; | |
961 | PL_checkav = NULL; | |
962 | PL_checkav_save = NULL; | |
3c10abe3 AG |
963 | PL_unitcheckav = NULL; |
964 | PL_unitcheckav_save = NULL; | |
7d49f689 | 965 | PL_initav = NULL; |
5618dfe8 | 966 | |
8ebc5c01 | 967 | /* shortcuts just get cleared */ |
a0714e2c SS |
968 | PL_envgv = NULL; |
969 | PL_incgv = NULL; | |
970 | PL_hintgv = NULL; | |
971 | PL_errgv = NULL; | |
972 | PL_argvgv = NULL; | |
973 | PL_argvoutgv = NULL; | |
974 | PL_stdingv = NULL; | |
975 | PL_stderrgv = NULL; | |
976 | PL_last_in_gv = NULL; | |
977 | PL_replgv = NULL; | |
978 | PL_DBgv = NULL; | |
979 | PL_DBline = NULL; | |
980 | PL_DBsub = NULL; | |
981 | PL_DBsingle = NULL; | |
982 | PL_DBtrace = NULL; | |
983 | PL_DBsignal = NULL; | |
984 | PL_DBassertion = NULL; | |
601f1833 | 985 | PL_DBcv = NULL; |
7d49f689 | 986 | PL_dbargs = NULL; |
5c284bb0 | 987 | PL_debstash = NULL; |
8ebc5c01 | 988 | |
7a1c5554 | 989 | SvREFCNT_dec(PL_argvout_stack); |
7d49f689 | 990 | PL_argvout_stack = NULL; |
8ebc5c01 | 991 | |
5c831c24 | 992 | SvREFCNT_dec(PL_modglobal); |
5c284bb0 | 993 | PL_modglobal = NULL; |
5c831c24 | 994 | SvREFCNT_dec(PL_preambleav); |
7d49f689 | 995 | PL_preambleav = NULL; |
5c831c24 | 996 | SvREFCNT_dec(PL_subname); |
a0714e2c | 997 | PL_subname = NULL; |
5c831c24 | 998 | SvREFCNT_dec(PL_linestr); |
a0714e2c | 999 | PL_linestr = NULL; |
ca0c25f6 | 1000 | #ifdef PERL_USES_PL_PIDSTATUS |
5c831c24 | 1001 | SvREFCNT_dec(PL_pidstatus); |
5c284bb0 | 1002 | PL_pidstatus = NULL; |
ca0c25f6 | 1003 | #endif |
5c831c24 | 1004 | SvREFCNT_dec(PL_toptarget); |
a0714e2c | 1005 | PL_toptarget = NULL; |
5c831c24 | 1006 | SvREFCNT_dec(PL_bodytarget); |
a0714e2c SS |
1007 | PL_bodytarget = NULL; |
1008 | PL_formtarget = NULL; | |
5c831c24 | 1009 | |
d33b2eba | 1010 | /* free locale stuff */ |
b9582b6a | 1011 | #ifdef USE_LOCALE_COLLATE |
d33b2eba | 1012 | Safefree(PL_collation_name); |
bd61b366 | 1013 | PL_collation_name = NULL; |
b9582b6a | 1014 | #endif |
d33b2eba | 1015 | |
b9582b6a | 1016 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba | 1017 | Safefree(PL_numeric_name); |
bd61b366 | 1018 | PL_numeric_name = NULL; |
a453c169 | 1019 | SvREFCNT_dec(PL_numeric_radix_sv); |
a0714e2c | 1020 | PL_numeric_radix_sv = NULL; |
b9582b6a | 1021 | #endif |
d33b2eba | 1022 | |
5c831c24 GS |
1023 | /* clear utf8 character classes */ |
1024 | SvREFCNT_dec(PL_utf8_alnum); | |
1025 | SvREFCNT_dec(PL_utf8_alnumc); | |
1026 | SvREFCNT_dec(PL_utf8_ascii); | |
1027 | SvREFCNT_dec(PL_utf8_alpha); | |
1028 | SvREFCNT_dec(PL_utf8_space); | |
1029 | SvREFCNT_dec(PL_utf8_cntrl); | |
1030 | SvREFCNT_dec(PL_utf8_graph); | |
1031 | SvREFCNT_dec(PL_utf8_digit); | |
1032 | SvREFCNT_dec(PL_utf8_upper); | |
1033 | SvREFCNT_dec(PL_utf8_lower); | |
1034 | SvREFCNT_dec(PL_utf8_print); | |
1035 | SvREFCNT_dec(PL_utf8_punct); | |
1036 | SvREFCNT_dec(PL_utf8_xdigit); | |
1037 | SvREFCNT_dec(PL_utf8_mark); | |
1038 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 1039 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 1040 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 1041 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
1042 | SvREFCNT_dec(PL_utf8_idstart); |
1043 | SvREFCNT_dec(PL_utf8_idcont); | |
a0714e2c SS |
1044 | PL_utf8_alnum = NULL; |
1045 | PL_utf8_alnumc = NULL; | |
1046 | PL_utf8_ascii = NULL; | |
1047 | PL_utf8_alpha = NULL; | |
1048 | PL_utf8_space = NULL; | |
1049 | PL_utf8_cntrl = NULL; | |
1050 | PL_utf8_graph = NULL; | |
1051 | PL_utf8_digit = NULL; | |
1052 | PL_utf8_upper = NULL; | |
1053 | PL_utf8_lower = NULL; | |
1054 | PL_utf8_print = NULL; | |
1055 | PL_utf8_punct = NULL; | |
1056 | PL_utf8_xdigit = NULL; | |
1057 | PL_utf8_mark = NULL; | |
1058 | PL_utf8_toupper = NULL; | |
1059 | PL_utf8_totitle = NULL; | |
1060 | PL_utf8_tolower = NULL; | |
1061 | PL_utf8_tofold = NULL; | |
1062 | PL_utf8_idstart = NULL; | |
1063 | PL_utf8_idcont = NULL; | |
5c831c24 | 1064 | |
971a9dd3 | 1065 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 1066 | PerlMemShared_free(PL_compiling.cop_warnings); |
a0714e2c | 1067 | PL_compiling.cop_warnings = NULL; |
c28fe1ec NC |
1068 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); |
1069 | PL_compiling.cop_hints_hash = NULL; | |
05ec9bb3 NIS |
1070 | CopFILE_free(&PL_compiling); |
1071 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 1072 | |
a0d0e21e | 1073 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1074 | |
3280af22 NIS |
1075 | hv = PL_defstash; |
1076 | PL_defstash = 0; | |
a0d0e21e | 1077 | SvREFCNT_dec(hv); |
5c831c24 | 1078 | SvREFCNT_dec(PL_curstname); |
a0714e2c | 1079 | PL_curstname = NULL; |
a0d0e21e | 1080 | |
5a844595 GS |
1081 | /* clear queued errors */ |
1082 | SvREFCNT_dec(PL_errors); | |
a0714e2c | 1083 | PL_errors = NULL; |
5a844595 | 1084 | |
a0d0e21e | 1085 | FREETMPS; |
0453d815 | 1086 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 1087 | if (PL_scopestack_ix != 0) |
9014280d | 1088 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1089 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
1090 | (long)PL_scopestack_ix); |
1091 | if (PL_savestack_ix != 0) | |
9014280d | 1092 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1093 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
1094 | (long)PL_savestack_ix); |
1095 | if (PL_tmps_floor != -1) | |
9014280d | 1096 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 1097 | (long)PL_tmps_floor + 1); |
a0d0e21e | 1098 | if (cxstack_ix != -1) |
9014280d | 1099 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 1100 | (long)cxstack_ix + 1); |
a0d0e21e | 1101 | } |
8990e307 LW |
1102 | |
1103 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
d33b2eba | 1104 | SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */ |
3280af22 | 1105 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
5226ed68 JH |
1106 | |
1107 | /* the 2 is for PL_fdpid and PL_strtab */ | |
1108 | while (PL_sv_count > 2 && sv_clean_all()) | |
1109 | ; | |
1110 | ||
d33b2eba GS |
1111 | SvFLAGS(PL_fdpid) &= ~SVTYPEMASK; |
1112 | SvFLAGS(PL_fdpid) |= SVt_PVAV; | |
3280af22 NIS |
1113 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
1114 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
d33b2eba | 1115 | |
d4777f27 GS |
1116 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1117 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
7d49f689 | 1118 | PL_fdpid = NULL; |
d33b2eba | 1119 | |
6c644e78 GS |
1120 | #ifdef HAVE_INTERP_INTERN |
1121 | sys_intern_clear(); | |
1122 | #endif | |
1123 | ||
6e72f9df | 1124 | /* Destruct the global string table. */ |
1125 | { | |
1126 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1127 | * so that sv_free() won't fail on them. | |
80459961 NC |
1128 | * Now that the global string table is using a single hunk of memory |
1129 | * for both HE and HEK, we either need to explicitly unshare it the | |
1130 | * correct way, or actually free things here. | |
6e72f9df | 1131 | */ |
80459961 NC |
1132 | I32 riter = 0; |
1133 | const I32 max = HvMAX(PL_strtab); | |
c4420975 | 1134 | HE * const * const array = HvARRAY(PL_strtab); |
80459961 NC |
1135 | HE *hent = array[0]; |
1136 | ||
6e72f9df | 1137 | for (;;) { |
0453d815 | 1138 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
44f8325f | 1139 | HE * const next = HeNEXT(hent); |
9014280d | 1140 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
44f8325f | 1141 | "Unbalanced string table refcount: (%ld) for \"%s\"", |
de616631 | 1142 | (long)hent->he_valu.hent_refcount, HeKEY(hent)); |
80459961 NC |
1143 | Safefree(hent); |
1144 | hent = next; | |
6e72f9df | 1145 | } |
1146 | if (!hent) { | |
1147 | if (++riter > max) | |
1148 | break; | |
1149 | hent = array[riter]; | |
1150 | } | |
1151 | } | |
80459961 NC |
1152 | |
1153 | Safefree(array); | |
1154 | HvARRAY(PL_strtab) = 0; | |
1155 | HvTOTALKEYS(PL_strtab) = 0; | |
1156 | HvFILL(PL_strtab) = 0; | |
6e72f9df | 1157 | } |
3280af22 | 1158 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1159 | |
e652bb2f | 1160 | #ifdef USE_ITHREADS |
c21d1a0f | 1161 | /* free the pointer tables used for cloning */ |
a0739874 | 1162 | ptr_table_free(PL_ptr_table); |
bf9cdc68 | 1163 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1164 | #endif |
a0739874 | 1165 | |
d33b2eba GS |
1166 | /* free special SVs */ |
1167 | ||
1168 | SvREFCNT(&PL_sv_yes) = 0; | |
1169 | sv_clear(&PL_sv_yes); | |
1170 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1171 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1172 | |
1173 | SvREFCNT(&PL_sv_no) = 0; | |
1174 | sv_clear(&PL_sv_no); | |
1175 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1176 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1177 | |
9f375a43 DM |
1178 | { |
1179 | int i; | |
1180 | for (i=0; i<=2; i++) { | |
1181 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1182 | sv_clear(PERL_DEBUG_PAD(i)); | |
1183 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1184 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1185 | } | |
1186 | } | |
1187 | ||
0453d815 | 1188 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1189 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1190 | |
eba0f806 DM |
1191 | #ifdef DEBUG_LEAKING_SCALARS |
1192 | if (PL_sv_count != 0) { | |
1193 | SV* sva; | |
1194 | SV* sv; | |
1195 | register SV* svend; | |
1196 | ||
1197 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { | |
1198 | svend = &sva[SvREFCNT(sva)]; | |
1199 | for (sv = sva + 1; sv < svend; ++sv) { | |
1200 | if (SvTYPE(sv) != SVTYPEMASK) { | |
a548cda8 | 1201 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
61b61456 | 1202 | " flags=0x%"UVxf |
fd0854ff DM |
1203 | " refcnt=%"UVuf pTHX__FORMAT "\n" |
1204 | "\tallocated at %s:%d %s %s%s\n", | |
6c9570dc | 1205 | (void*)sv, sv->sv_flags, sv->sv_refcnt pTHX__VALUE, |
fd0854ff DM |
1206 | sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", |
1207 | sv->sv_debug_line, | |
1208 | sv->sv_debug_inpad ? "for" : "by", | |
1209 | sv->sv_debug_optype ? | |
1210 | PL_op_name[sv->sv_debug_optype]: "(none)", | |
1211 | sv->sv_debug_cloned ? " (cloned)" : "" | |
1212 | ); | |
2aa47728 | 1213 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
41e4abd8 | 1214 | Perl_dump_sv_child(aTHX_ sv); |
2aa47728 | 1215 | #endif |
eba0f806 DM |
1216 | } |
1217 | } | |
1218 | } | |
1219 | } | |
2aa47728 NC |
1220 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1221 | { | |
1222 | int status; | |
1223 | fd_set rset; | |
1224 | /* Wait for up to 4 seconds for child to terminate. | |
1225 | This seems to be the least effort way of timing out on reaping | |
1226 | its exit status. */ | |
1227 | struct timeval waitfor = {4, 0}; | |
41e4abd8 | 1228 | int sock = PL_dumper_fd; |
2aa47728 NC |
1229 | |
1230 | shutdown(sock, 1); | |
1231 | FD_ZERO(&rset); | |
1232 | FD_SET(sock, &rset); | |
1233 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1234 | waitpid(child, &status, WNOHANG); | |
1235 | close(sock); | |
1236 | } | |
1237 | #endif | |
eba0f806 | 1238 | #endif |
bf9cdc68 | 1239 | PL_sv_count = 0; |
eba0f806 DM |
1240 | |
1241 | ||
56a2bab7 | 1242 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1243 | /* No more IO - including error messages ! */ |
1244 | PerlIO_cleanup(aTHX); | |
1245 | #endif | |
1246 | ||
9f4bd222 | 1247 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
a0714e2c | 1248 | as currently layers use it rather than NULL as a marker |
9f4bd222 NIS |
1249 | for no arg - and will try and SvREFCNT_dec it. |
1250 | */ | |
1251 | SvREFCNT(&PL_sv_undef) = 0; | |
1252 | SvREADONLY_off(&PL_sv_undef); | |
1253 | ||
3280af22 | 1254 | Safefree(PL_origfilename); |
bd61b366 | 1255 | PL_origfilename = NULL; |
3280af22 | 1256 | Safefree(PL_reg_start_tmp); |
bf9cdc68 RG |
1257 | PL_reg_start_tmp = (char**)NULL; |
1258 | PL_reg_start_tmpl = 0; | |
43c5f42d | 1259 | Safefree(PL_reg_curpm); |
82ba1be6 | 1260 | Safefree(PL_reg_poscache); |
dd28f7bb | 1261 | free_tied_hv_pool(); |
3280af22 | 1262 | Safefree(PL_op_mask); |
cf36064f | 1263 | Safefree(PL_psig_ptr); |
bf9cdc68 | 1264 | PL_psig_ptr = (SV**)NULL; |
cf36064f | 1265 | Safefree(PL_psig_name); |
bf9cdc68 | 1266 | PL_psig_name = (SV**)NULL; |
2c2666fc | 1267 | Safefree(PL_bitcount); |
bd61b366 | 1268 | PL_bitcount = NULL; |
ce08f86c | 1269 | Safefree(PL_psig_pend); |
bf9cdc68 | 1270 | PL_psig_pend = (int*)NULL; |
a0714e2c | 1271 | PL_formfeed = NULL; |
6e72f9df | 1272 | nuke_stacks(); |
bf9cdc68 RG |
1273 | PL_tainting = FALSE; |
1274 | PL_taint_warn = FALSE; | |
3280af22 | 1275 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 1276 | PL_debug = 0; |
ac27b0f5 | 1277 | |
a0d0e21e | 1278 | DEBUG_P(debprofdump()); |
d33b2eba | 1279 | |
e5dd39fc | 1280 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1281 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1282 | #endif |
1283 | ||
612f20c3 GS |
1284 | sv_free_arenas(); |
1285 | ||
5d9a96ca DM |
1286 | while (PL_regmatch_slab) { |
1287 | regmatch_slab *s = PL_regmatch_slab; | |
1288 | PL_regmatch_slab = PL_regmatch_slab->next; | |
1289 | Safefree(s); | |
1290 | } | |
1291 | ||
fc36a67e | 1292 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1293 | ||
3280af22 | 1294 | if (PL_mess_sv) { |
f350b448 NC |
1295 | /* we know that type == SVt_PVMG */ |
1296 | ||
9c63abab | 1297 | /* it could have accumulated taint magic */ |
f350b448 NC |
1298 | MAGIC* mg; |
1299 | MAGIC* moremagic; | |
1300 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1301 | moremagic = mg->mg_moremagic; | |
1302 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1303 | && mg->mg_len >= 0) | |
1304 | Safefree(mg->mg_ptr); | |
1305 | Safefree(mg); | |
9c63abab | 1306 | } |
f350b448 | 1307 | |
fc36a67e | 1308 | /* we know that type >= SVt_PV */ |
8bd4d4c5 | 1309 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1310 | Safefree(SvANY(PL_mess_sv)); |
1311 | Safefree(PL_mess_sv); | |
a0714e2c | 1312 | PL_mess_sv = NULL; |
fc36a67e | 1313 | } |
37038d91 | 1314 | return STATUS_EXIT; |
79072805 LW |
1315 | } |
1316 | ||
954c1994 GS |
1317 | /* |
1318 | =for apidoc perl_free | |
1319 | ||
1320 | Releases a Perl interpreter. See L<perlembed>. | |
1321 | ||
1322 | =cut | |
1323 | */ | |
1324 | ||
79072805 | 1325 | void |
0cb96387 | 1326 | perl_free(pTHXx) |
79072805 | 1327 | { |
7cb608b5 | 1328 | #ifdef PERL_TRACK_MEMPOOL |
55ef9aae MHM |
1329 | { |
1330 | /* | |
1331 | * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero | |
1332 | * value as we're probably hunting memory leaks then | |
1333 | */ | |
1334 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); | |
1335 | if (!s || atoi(s) == 0) { | |
1336 | /* Emulate the PerlHost behaviour of free()ing all memory allocated in this | |
1337 | thread at thread exit. */ | |
1338 | while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)) | |
1339 | safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next)); | |
1340 | } | |
1341 | } | |
7cb608b5 NC |
1342 | #endif |
1343 | ||
acfe0abc | 1344 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1345 | # if defined(PERL_IMPLICIT_SYS) |
b36c9a52 | 1346 | { |
acfe0abc | 1347 | # ifdef NETWARE |
7af12a34 | 1348 | void *host = nw_internal_host; |
acfe0abc | 1349 | # else |
7af12a34 | 1350 | void *host = w32_internal_host; |
acfe0abc | 1351 | # endif |
7af12a34 | 1352 | PerlMem_free(aTHXx); |
acfe0abc | 1353 | # ifdef NETWARE |
7af12a34 | 1354 | nw_delete_internal_host(host); |
acfe0abc | 1355 | # else |
7af12a34 | 1356 | win32_delete_internal_host(host); |
acfe0abc | 1357 | # endif |
7af12a34 | 1358 | } |
1c0ca838 GS |
1359 | # else |
1360 | PerlMem_free(aTHXx); | |
1361 | # endif | |
acfe0abc GS |
1362 | #else |
1363 | PerlMem_free(aTHXx); | |
76e3520e | 1364 | #endif |
79072805 LW |
1365 | } |
1366 | ||
b7f7fff6 | 1367 | #if defined(USE_ITHREADS) |
aebd1ac7 GA |
1368 | /* provide destructors to clean up the thread key when libperl is unloaded */ |
1369 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1370 | ||
826955bd | 1371 | #if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__) |
aebd1ac7 | 1372 | #pragma fini "perl_fini" |
666ad1ec GA |
1373 | #elif defined(__sun) && !defined(__GNUC__) |
1374 | #pragma fini (perl_fini) | |
aebd1ac7 GA |
1375 | #endif |
1376 | ||
0dbb1585 AL |
1377 | static void |
1378 | #if defined(__GNUC__) | |
1379 | __attribute__((destructor)) | |
aebd1ac7 | 1380 | #endif |
de009b76 | 1381 | perl_fini(void) |
aebd1ac7 | 1382 | { |
27da23d5 | 1383 | dVAR; |
aebd1ac7 GA |
1384 | if (PL_curinterp) |
1385 | FREE_THREAD_KEY; | |
1386 | } | |
1387 | ||
1388 | #endif /* WIN32 */ | |
1389 | #endif /* THREADS */ | |
1390 | ||
4b556e6c | 1391 | void |
864dbfa3 | 1392 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1393 | { |
97aff369 | 1394 | dVAR; |
3280af22 NIS |
1395 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1396 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1397 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1398 | ++PL_exitlistlen; | |
4b556e6c JD |
1399 | } |
1400 | ||
56cf6df8 RGS |
1401 | #ifdef HAS_PROCSELFEXE |
1402 | /* This is a function so that we don't hold on to MAXPATHLEN | |
1403 | bytes of stack longer than necessary | |
1404 | */ | |
1405 | STATIC void | |
e1ec3a88 | 1406 | S_procself_val(pTHX_ SV *sv, const char *arg0) |
56cf6df8 RGS |
1407 | { |
1408 | char buf[MAXPATHLEN]; | |
1409 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1410 | ||
1411 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1412 | includes a spurious NUL which will cause $^X to fail in system | |
1413 | or backticks (this will prevent extensions from being built and | |
1414 | many tests from working). readlink is not meant to add a NUL. | |
1415 | Normal readlink works fine. | |
1416 | */ | |
1417 | if (len > 0 && buf[len-1] == '\0') { | |
1418 | len--; | |
1419 | } | |
1420 | ||
1421 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1422 | returning the text "unknown" from the readlink rather than the path | |
1423 | to the executable (or returning an error from the readlink). Any valid | |
1424 | path has a '/' in it somewhere, so use that to validate the result. | |
1425 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1426 | */ | |
1427 | if (len > 0 && memchr(buf, '/', len)) { | |
1428 | sv_setpvn(sv,buf,len); | |
1429 | } | |
1430 | else { | |
1431 | sv_setpv(sv,arg0); | |
1432 | } | |
1433 | } | |
1434 | #endif /* HAS_PROCSELFEXE */ | |
b7975bdd NC |
1435 | |
1436 | STATIC void | |
1437 | S_set_caret_X(pTHX) { | |
97aff369 | 1438 | dVAR; |
fafc274c | 1439 | GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */ |
b7975bdd NC |
1440 | if (tmpgv) { |
1441 | #ifdef HAS_PROCSELFEXE | |
1442 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
1443 | #else | |
1444 | #ifdef OS2 | |
c69033f2 | 1445 | sv_setpv(GvSVn(tmpgv), os2_execname(aTHX)); |
b7975bdd | 1446 | #else |
c69033f2 | 1447 | sv_setpv(GvSVn(tmpgv),PL_origargv[0]); |
b7975bdd NC |
1448 | #endif |
1449 | #endif | |
1450 | } | |
1451 | } | |
1452 | ||
954c1994 GS |
1453 | /* |
1454 | =for apidoc perl_parse | |
1455 | ||
1456 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1457 | ||
1458 | =cut | |
1459 | */ | |
1460 | ||
79072805 | 1461 | int |
0cb96387 | 1462 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1463 | { |
27da23d5 | 1464 | dVAR; |
6224f72b | 1465 | I32 oldscope; |
6224f72b | 1466 | int ret; |
db36c5a1 | 1467 | dJMPENV; |
8d063cd8 | 1468 | |
ed6c66dd | 1469 | PERL_UNUSED_ARG(my_perl); |
9d4ba2ae | 1470 | |
a687059c LW |
1471 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
1472 | #ifdef IAMSUID | |
1473 | #undef IAMSUID | |
cea2e8a9 | 1474 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c | 1475 | setuid perl scripts securely.\n"); |
ae3f3efd | 1476 | #endif /* IAMSUID */ |
a687059c LW |
1477 | #endif |
1478 | ||
b0891165 JH |
1479 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
1480 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
103dd899 | 1481 | * This MUST be done before any hash stores or fetches take place. |
008fb0c0 NC |
1482 | * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) |
1483 | * yourself, it is your responsibility to provide a good random seed! | |
830b38bd | 1484 | * You can also define PERL_HASH_SEED in compile time, see hv.h. */ |
008fb0c0 NC |
1485 | if (!PL_rehash_seed_set) |
1486 | PL_rehash_seed = get_hash_seed(); | |
b0891165 | 1487 | { |
9d4ba2ae | 1488 | const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
bed60192 | 1489 | |
1b6737cc AL |
1490 | if (s && (atoi(s) == 1)) |
1491 | PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed); | |
b0891165 JH |
1492 | } |
1493 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
1494 | ||
3280af22 | 1495 | PL_origargc = argc; |
e2975953 | 1496 | PL_origargv = argv; |
a0d0e21e | 1497 | |
a2722ac9 GA |
1498 | if (PL_origalen != 0) { |
1499 | PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */ | |
1500 | } | |
1501 | else { | |
3cb9023d JH |
1502 | /* Set PL_origalen be the sum of the contiguous argv[] |
1503 | * elements plus the size of the env in case that it is | |
e9137a8e | 1504 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
3cb9023d JH |
1505 | * as the maximum modifiable length of $0. In the worst case |
1506 | * the area we are able to modify is limited to the size of | |
43c32782 | 1507 | * the original argv[0]. (See below for 'contiguous', though.) |
3cb9023d | 1508 | * --jhi */ |
e1ec3a88 | 1509 | const char *s = NULL; |
54bfe034 | 1510 | int i; |
1b6737cc | 1511 | const UV mask = |
7d8e7db3 | 1512 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); |
43c32782 | 1513 | /* Do the mask check only if the args seem like aligned. */ |
1b6737cc | 1514 | const UV aligned = |
43c32782 JH |
1515 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); |
1516 | ||
1517 | /* See if all the arguments are contiguous in memory. Note | |
1518 | * that 'contiguous' is a loose term because some platforms | |
1519 | * align the argv[] and the envp[]. If the arguments look | |
1520 | * like non-aligned, assume that they are 'strictly' or | |
1521 | * 'traditionally' contiguous. If the arguments look like | |
1522 | * aligned, we just check that they are within aligned | |
1523 | * PTRSIZE bytes. As long as no system has something bizarre | |
1524 | * like the argv[] interleaved with some other data, we are | |
1525 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
c8941eeb JH |
1526 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1527 | while (*s) s++; | |
1528 | for (i = 1; i < PL_origargc; i++) { | |
1529 | if ((PL_origargv[i] == s + 1 | |
43c32782 | 1530 | #ifdef OS2 |
c8941eeb | 1531 | || PL_origargv[i] == s + 2 |
43c32782 | 1532 | #endif |
c8941eeb JH |
1533 | ) |
1534 | || | |
1535 | (aligned && | |
1536 | (PL_origargv[i] > s && | |
1537 | PL_origargv[i] <= | |
1538 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1539 | ) | |
1540 | { | |
1541 | s = PL_origargv[i]; | |
1542 | while (*s) s++; | |
1543 | } | |
1544 | else | |
1545 | break; | |
54bfe034 | 1546 | } |
54bfe034 | 1547 | } |
3cb9023d | 1548 | /* Can we grab env area too to be used as the area for $0? */ |
2d2af554 | 1549 | if (s && PL_origenviron) { |
9d419b5f | 1550 | if ((PL_origenviron[0] == s + 1) |
43c32782 JH |
1551 | || |
1552 | (aligned && | |
1553 | (PL_origenviron[0] > s && | |
1554 | PL_origenviron[0] <= | |
1555 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1556 | ) | |
1557 | { | |
9d419b5f | 1558 | #ifndef OS2 /* ENVIRON is read by the kernel too. */ |
43c32782 JH |
1559 | s = PL_origenviron[0]; |
1560 | while (*s) s++; | |
1561 | #endif | |
bd61b366 | 1562 | my_setenv("NoNe SuCh", NULL); |
43c32782 JH |
1563 | /* Force copy of environment. */ |
1564 | for (i = 1; PL_origenviron[i]; i++) { | |
1565 | if (PL_origenviron[i] == s + 1 | |
1566 | || | |
1567 | (aligned && | |
1568 | (PL_origenviron[i] > s && | |
1569 | PL_origenviron[i] <= | |
1570 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1571 | ) | |
1572 | { | |
1573 | s = PL_origenviron[i]; | |
1574 | while (*s) s++; | |
1575 | } | |
1576 | else | |
1577 | break; | |
54bfe034 | 1578 | } |
43c32782 | 1579 | } |
54bfe034 | 1580 | } |
2d2af554 | 1581 | PL_origalen = s ? s - PL_origargv[0] + 1 : 0; |
54bfe034 JH |
1582 | } |
1583 | ||
3280af22 | 1584 | if (PL_do_undump) { |
a0d0e21e LW |
1585 | |
1586 | /* Come here if running an undumped a.out. */ | |
1587 | ||
3280af22 NIS |
1588 | PL_origfilename = savepv(argv[0]); |
1589 | PL_do_undump = FALSE; | |
a0d0e21e | 1590 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1591 | init_ids(); |
b7975bdd NC |
1592 | assert (!PL_tainted); |
1593 | TAINT; | |
1594 | S_set_caret_X(aTHX); | |
1595 | TAINT_NOT; | |
a0d0e21e LW |
1596 | init_postdump_symbols(argc,argv,env); |
1597 | return 0; | |
1598 | } | |
1599 | ||
3280af22 | 1600 | if (PL_main_root) { |
3280af22 | 1601 | op_free(PL_main_root); |
5f66b61c | 1602 | PL_main_root = NULL; |
ff0cee69 | 1603 | } |
5f66b61c | 1604 | PL_main_start = NULL; |
3280af22 | 1605 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 1606 | PL_main_cv = NULL; |
79072805 | 1607 | |
3280af22 NIS |
1608 | time(&PL_basetime); |
1609 | oldscope = PL_scopestack_ix; | |
599cee73 | 1610 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1611 | |
14dd3ad8 | 1612 | JMPENV_PUSH(ret); |
6224f72b | 1613 | switch (ret) { |
312caa8e | 1614 | case 0: |
14dd3ad8 | 1615 | parse_body(env,xsinit); |
3c10abe3 AG |
1616 | if (PL_unitcheckav) |
1617 | call_list(oldscope, PL_unitcheckav); | |
7d30b5c4 GS |
1618 | if (PL_checkav) |
1619 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1620 | ret = 0; |
1621 | break; | |
6224f72b GS |
1622 | case 1: |
1623 | STATUS_ALL_FAILURE; | |
1624 | /* FALL THROUGH */ | |
1625 | case 2: | |
1626 | /* my_exit() was called */ | |
3280af22 | 1627 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1628 | LEAVE; |
1629 | FREETMPS; | |
3280af22 | 1630 | PL_curstash = PL_defstash; |
3c10abe3 AG |
1631 | if (PL_unitcheckav) |
1632 | call_list(oldscope, PL_unitcheckav); | |
7d30b5c4 GS |
1633 | if (PL_checkav) |
1634 | call_list(oldscope, PL_checkav); | |
37038d91 | 1635 | ret = STATUS_EXIT; |
14dd3ad8 | 1636 | break; |
6224f72b | 1637 | case 3: |
bf49b057 | 1638 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1639 | ret = 1; |
1640 | break; | |
6224f72b | 1641 | } |
14dd3ad8 GS |
1642 | JMPENV_POP; |
1643 | return ret; | |
1644 | } | |
1645 | ||
312caa8e | 1646 | STATIC void * |
14dd3ad8 | 1647 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1648 | { |
27da23d5 | 1649 | dVAR; |
312caa8e | 1650 | int argc = PL_origargc; |
8f42b153 | 1651 | char **argv = PL_origargv; |
e1ec3a88 | 1652 | const char *scriptname = NULL; |
312caa8e | 1653 | VOL bool dosearch = FALSE; |
e1ec3a88 | 1654 | const char *validarg = ""; |
312caa8e | 1655 | register SV *sv; |
47f56822 | 1656 | register char *s, c; |
bd61b366 | 1657 | const char *cddir = NULL; |
ab019eaa | 1658 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1659 | bool minus_f = FALSE; |
ab019eaa | 1660 | #endif |
312caa8e | 1661 | |
3280af22 | 1662 | sv_setpvn(PL_linestr,"",0); |
396482e1 | 1663 | sv = newSVpvs(""); /* first used for -I flags */ |
6224f72b GS |
1664 | SAVEFREESV(sv); |
1665 | init_main_stash(); | |
54310121 | 1666 | |
6224f72b GS |
1667 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1668 | if (argv[0][0] != '-' || !argv[0][1]) | |
1669 | break; | |
1670 | #ifdef DOSUID | |
1671 | if (*validarg) | |
1672 | validarg = " PHOOEY "; | |
1673 | else | |
1674 | validarg = argv[0]; | |
ae3f3efd PS |
1675 | /* |
1676 | * Can we rely on the kernel to start scripts with argv[1] set to | |
1677 | * contain all #! line switches (the whole line)? (argv[0] is set to | |
1678 | * the interpreter name, argv[2] to the script name; argv[3] and | |
1679 | * above may contain other arguments.) | |
1680 | */ | |
13281fa4 | 1681 | #endif |
6224f72b GS |
1682 | s = argv[0]+1; |
1683 | reswitch: | |
47f56822 | 1684 | switch ((c = *s)) { |
729a02f2 | 1685 | case 'C': |
1d5472a9 GS |
1686 | #ifndef PERL_STRICT_CR |
1687 | case '\r': | |
1688 | #endif | |
6224f72b GS |
1689 | case ' ': |
1690 | case '0': | |
1691 | case 'F': | |
1692 | case 'a': | |
1693 | case 'c': | |
1694 | case 'd': | |
1695 | case 'D': | |
1696 | case 'h': | |
1697 | case 'i': | |
1698 | case 'l': | |
1699 | case 'M': | |
1700 | case 'm': | |
1701 | case 'n': | |
1702 | case 'p': | |
1703 | case 's': | |
1704 | case 'u': | |
1705 | case 'U': | |
1706 | case 'v': | |
599cee73 PM |
1707 | case 'W': |
1708 | case 'X': | |
6224f72b | 1709 | case 'w': |
06492da6 | 1710 | case 'A': |
97bd5664 | 1711 | if ((s = moreswitches(s))) |
6224f72b GS |
1712 | goto reswitch; |
1713 | break; | |
33b78306 | 1714 | |
1dbad523 | 1715 | case 't': |
22f7c9c9 | 1716 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
317ea90d MS |
1717 | if( !PL_tainting ) { |
1718 | PL_taint_warn = TRUE; | |
1719 | PL_tainting = TRUE; | |
1720 | } | |
1721 | s++; | |
1722 | goto reswitch; | |
6224f72b | 1723 | case 'T': |
22f7c9c9 | 1724 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
3280af22 | 1725 | PL_tainting = TRUE; |
317ea90d | 1726 | PL_taint_warn = FALSE; |
6224f72b GS |
1727 | s++; |
1728 | goto reswitch; | |
f86702cc | 1729 | |
bc9b29db RH |
1730 | case 'E': |
1731 | PL_minus_E = TRUE; | |
1732 | /* FALL THROUGH */ | |
6224f72b | 1733 | case 'e': |
bf4acbe4 GS |
1734 | #ifdef MACOS_TRADITIONAL |
1735 | /* ignore -e for Dev:Pseudo argument */ | |
1736 | if (argv[1] && !strcmp(argv[1], "Dev:Pseudo")) | |
e55ac0fa | 1737 | break; |
bf4acbe4 | 1738 | #endif |
a52eba0e | 1739 | forbid_setid('e', -1); |
3280af22 | 1740 | if (!PL_e_script) { |
396482e1 | 1741 | PL_e_script = newSVpvs(""); |
0cb96387 | 1742 | filter_add(read_e_script, NULL); |
6224f72b GS |
1743 | } |
1744 | if (*++s) | |
3280af22 | 1745 | sv_catpv(PL_e_script, s); |
6224f72b | 1746 | else if (argv[1]) { |
3280af22 | 1747 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1748 | argc--,argv++; |
1749 | } | |
1750 | else | |
47f56822 | 1751 | Perl_croak(aTHX_ "No code specified for -%c", c); |
396482e1 | 1752 | sv_catpvs(PL_e_script, "\n"); |
6224f72b | 1753 | break; |
afe37c7d | 1754 | |
20ef40cf | 1755 | case 'f': |
f5542d3a | 1756 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1757 | minus_f = TRUE; |
f5542d3a | 1758 | #endif |
20ef40cf GA |
1759 | s++; |
1760 | goto reswitch; | |
1761 | ||
6224f72b | 1762 | case 'I': /* -I handled both here and in moreswitches() */ |
a52eba0e | 1763 | forbid_setid('I', -1); |
bd61b366 | 1764 | if (!*++s && (s=argv[1]) != NULL) { |
6224f72b GS |
1765 | argc--,argv++; |
1766 | } | |
6224f72b | 1767 | if (s && *s) { |
0df16ed7 | 1768 | STRLEN len = strlen(s); |
aec46f14 | 1769 | const char * const p = savepvn(s, len); |
88fe16b2 | 1770 | incpush(p, TRUE, TRUE, FALSE, FALSE); |
396482e1 | 1771 | sv_catpvs(sv, "-I"); |
0df16ed7 | 1772 | sv_catpvn(sv, p, len); |
396482e1 | 1773 | sv_catpvs(sv, " "); |
6224f72b | 1774 | Safefree(p); |
0df16ed7 GS |
1775 | } |
1776 | else | |
a67e862a | 1777 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b GS |
1778 | break; |
1779 | case 'P': | |
a52eba0e | 1780 | forbid_setid('P', -1); |
3280af22 | 1781 | PL_preprocess = TRUE; |
6224f72b GS |
1782 | s++; |
1783 | goto reswitch; | |
1784 | case 'S': | |
a52eba0e | 1785 | forbid_setid('S', -1); |
6224f72b GS |
1786 | dosearch = TRUE; |
1787 | s++; | |
1788 | goto reswitch; | |
1789 | case 'V': | |
7edfd0ef NC |
1790 | { |
1791 | SV *opts_prog; | |
1792 | ||
1793 | if (!PL_preambleav) | |
1794 | PL_preambleav = newAV(); | |
1795 | av_push(PL_preambleav, | |
396482e1 | 1796 | newSVpvs("use Config;")); |
7edfd0ef NC |
1797 | if (*++s != ':') { |
1798 | STRLEN opts; | |
1799 | ||
396482e1 | 1800 | opts_prog = newSVpvs("print Config::myconfig(),"); |
6224f72b | 1801 | #ifdef VMS |
396482e1 | 1802 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 1803 | #else |
396482e1 | 1804 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 1805 | #endif |
7edfd0ef | 1806 | opts = SvCUR(opts_prog); |
efcaa95b | 1807 | |
9cd7d3f2 | 1808 | Perl_sv_catpv(aTHX_ opts_prog,"\" Compile-time options:" |
6224f72b | 1809 | # ifdef DEBUGGING |
e2e4dbf1 | 1810 | " DEBUGGING" |
6224f72b | 1811 | # endif |
4f185743 NC |
1812 | # ifdef DEBUG_LEAKING_SCALARS |
1813 | " DEBUG_LEAKING_SCALARS" | |
1814 | # endif | |
85e1fcb9 | 1815 | # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
e2e4dbf1 | 1816 | " DEBUG_LEAKING_SCALARS_FORK_DUMP" |
85e1fcb9 SH |
1817 | # endif |
1818 | # ifdef FAKE_THREADS | |
e2e4dbf1 | 1819 | " FAKE_THREADS" |
85e1fcb9 | 1820 | # endif |
6224f72b | 1821 | # ifdef MULTIPLICITY |
e2e4dbf1 | 1822 | " MULTIPLICITY" |
6224f72b | 1823 | # endif |
85e1fcb9 | 1824 | # ifdef MYMALLOC |
e2e4dbf1 | 1825 | " MYMALLOC" |
85e1fcb9 | 1826 | # endif |
3bcf5ed8 SP |
1827 | # ifdef NO_MATHOMS |
1828 | " NO_MATHOMS" | |
1829 | # endif | |
85e1fcb9 | 1830 | # ifdef PERL_DONT_CREATE_GVSV |
e2e4dbf1 | 1831 | " PERL_DONT_CREATE_GVSV" |
85e1fcb9 SH |
1832 | # endif |
1833 | # ifdef PERL_GLOBAL_STRUCT | |
e2e4dbf1 | 1834 | " PERL_GLOBAL_STRUCT" |
85e1fcb9 SH |
1835 | # endif |
1836 | # ifdef PERL_IMPLICIT_CONTEXT | |
e2e4dbf1 | 1837 | " PERL_IMPLICIT_CONTEXT" |
85e1fcb9 SH |
1838 | # endif |
1839 | # ifdef PERL_IMPLICIT_SYS | |
e2e4dbf1 | 1840 | " PERL_IMPLICIT_SYS" |
85e1fcb9 | 1841 | # endif |
a724edfe NC |
1842 | # ifdef PERL_MAD |
1843 | " PERL_MAD" | |
1844 | # endif | |
85e1fcb9 | 1845 | # ifdef PERL_MALLOC_WRAP |
e2e4dbf1 | 1846 | " PERL_MALLOC_WRAP" |
85e1fcb9 SH |
1847 | # endif |
1848 | # ifdef PERL_NEED_APPCTX | |
e2e4dbf1 | 1849 | " PERL_NEED_APPCTX" |
85e1fcb9 SH |
1850 | # endif |
1851 | # ifdef PERL_NEED_TIMESBASE | |
e2e4dbf1 | 1852 | " PERL_NEED_TIMESBASE" |
85e1fcb9 SH |
1853 | # endif |
1854 | # ifdef PERL_OLD_COPY_ON_WRITE | |
e2e4dbf1 | 1855 | " PERL_OLD_COPY_ON_WRITE" |
85e1fcb9 | 1856 | # endif |
9c0a4d5d DM |
1857 | # ifdef PERL_TRACK_MEMPOOL |
1858 | " PERL_TRACK_MEMPOOL" | |
1859 | # endif | |
417cd4a8 SP |
1860 | # ifdef PERL_USE_SAFE_PUTENV |
1861 | " PERL_USE_SAFE_PUTENV" | |
1862 | # endif | |
ca0c25f6 NC |
1863 | #ifdef PERL_USES_PL_PIDSTATUS |
1864 | " PERL_USES_PL_PIDSTATUS" | |
1865 | #endif | |
85e1fcb9 | 1866 | # ifdef PL_OP_SLAB_ALLOC |
e2e4dbf1 | 1867 | " PL_OP_SLAB_ALLOC" |
85e1fcb9 SH |
1868 | # endif |
1869 | # ifdef THREADS_HAVE_PIDS | |
e2e4dbf1 | 1870 | " THREADS_HAVE_PIDS" |
85e1fcb9 | 1871 | # endif |
85e1fcb9 | 1872 | # ifdef USE_64_BIT_ALL |
e2e4dbf1 | 1873 | " USE_64_BIT_ALL" |
ac5e8965 | 1874 | # endif |
10cc9d2a | 1875 | # ifdef USE_64_BIT_INT |
e2e4dbf1 | 1876 | " USE_64_BIT_INT" |
10cc9d2a | 1877 | # endif |
85e1fcb9 | 1878 | # ifdef USE_ITHREADS |
e2e4dbf1 | 1879 | " USE_ITHREADS" |
85e1fcb9 SH |
1880 | # endif |
1881 | # ifdef USE_LARGE_FILES | |
e2e4dbf1 | 1882 | " USE_LARGE_FILES" |
ac5e8965 JH |
1883 | # endif |
1884 | # ifdef USE_LONG_DOUBLE | |
e2e4dbf1 | 1885 | " USE_LONG_DOUBLE" |
ac5e8965 | 1886 | # endif |
85e1fcb9 | 1887 | # ifdef USE_PERLIO |
e2e4dbf1 | 1888 | " USE_PERLIO" |
53430762 | 1889 | # endif |
85e1fcb9 | 1890 | # ifdef USE_REENTRANT_API |
e2e4dbf1 | 1891 | " USE_REENTRANT_API" |
85e1fcb9 SH |
1892 | # endif |
1893 | # ifdef USE_SFIO | |
e2e4dbf1 | 1894 | " USE_SFIO" |
ac5e8965 | 1895 | # endif |
20ef40cf | 1896 | # ifdef USE_SITECUSTOMIZE |
e2e4dbf1 | 1897 | " USE_SITECUSTOMIZE" |
20ef40cf | 1898 | # endif |
85e1fcb9 | 1899 | # ifdef USE_SOCKS |
e2e4dbf1 | 1900 | " USE_SOCKS" |
b363f7ed | 1901 | # endif |
e2e4dbf1 | 1902 | ); |
efcaa95b | 1903 | |
7edfd0ef NC |
1904 | while (SvCUR(opts_prog) > opts+76) { |
1905 | /* find last space after "options: " and before col 76 | |
1906 | */ | |
efcaa95b | 1907 | |
7edfd0ef | 1908 | const char *space; |
c4420975 | 1909 | char * const pv = SvPV_nolen(opts_prog); |
7edfd0ef NC |
1910 | const char c = pv[opts+76]; |
1911 | pv[opts+76] = '\0'; | |
1912 | space = strrchr(pv+opts+26, ' '); | |
1913 | pv[opts+76] = c; | |
1914 | if (!space) break; /* "Can't happen" */ | |
efcaa95b | 1915 | |
7edfd0ef | 1916 | /* break the line before that space */ |
efcaa95b | 1917 | |
7edfd0ef | 1918 | opts = space - pv; |
89529cee | 1919 | Perl_sv_insert(aTHX_ opts_prog, opts, 0, |
6a245ed1 | 1920 | STR_WITH_LEN("\\n ")); |
7edfd0ef | 1921 | } |
efcaa95b | 1922 | |
396482e1 | 1923 | sv_catpvs(opts_prog,"\\n\","); |
b363f7ed | 1924 | |
6224f72b | 1925 | #if defined(LOCAL_PATCH_COUNT) |
7edfd0ef NC |
1926 | if (LOCAL_PATCH_COUNT > 0) { |
1927 | int i; | |
396482e1 | 1928 | sv_catpvs(opts_prog, |
7edfd0ef NC |
1929 | "\" Locally applied patches:\\n\","); |
1930 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
1931 | if (PL_localpatches[i]) | |
1932 | Perl_sv_catpvf(aTHX_ opts_prog,"q%c\t%s\n%c,", | |
1933 | 0, PL_localpatches[i], 0); | |
1934 | } | |
6224f72b | 1935 | } |
6224f72b | 1936 | #endif |
7edfd0ef NC |
1937 | Perl_sv_catpvf(aTHX_ opts_prog, |
1938 | "\" Built under %s\\n\"",OSNAME); | |
6224f72b GS |
1939 | #ifdef __DATE__ |
1940 | # ifdef __TIME__ | |
7edfd0ef NC |
1941 | Perl_sv_catpvf(aTHX_ opts_prog, |
1942 | ",\" Compiled at %s %s\\n\"",__DATE__, | |
1943 | __TIME__); | |
6224f72b | 1944 | # else |
7edfd0ef NC |
1945 | Perl_sv_catpvf(aTHX_ opts_prog,",\" Compiled on %s\\n\"", |
1946 | __DATE__); | |
6224f72b GS |
1947 | # endif |
1948 | #endif | |
396482e1 | 1949 | sv_catpvs(opts_prog, "; $\"=\"\\n \"; " |
7edfd0ef NC |
1950 | "@env = map { \"$_=\\\"$ENV{$_}\\\"\" } " |
1951 | "sort grep {/^PERL/} keys %ENV; "); | |
69fcd688 | 1952 | #ifdef __CYGWIN__ |
396482e1 | 1953 | sv_catpvs(opts_prog, |
7edfd0ef | 1954 | "push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); |
69fcd688 | 1955 | #endif |
396482e1 | 1956 | sv_catpvs(opts_prog, |
7edfd0ef NC |
1957 | "print \" \\%ENV:\\n @env\\n\" if @env;" |
1958 | "print \" \\@INC:\\n @INC\\n\";"); | |
1959 | } | |
1960 | else { | |
1961 | ++s; | |
1962 | opts_prog = Perl_newSVpvf(aTHX_ | |
1963 | "Config::config_vars(qw%c%s%c)", | |
1964 | 0, s, 0); | |
1965 | s += strlen(s); | |
1966 | } | |
1967 | av_push(PL_preambleav, opts_prog); | |
1968 | /* don't look for script or read stdin */ | |
1969 | scriptname = BIT_BUCKET; | |
1970 | goto reswitch; | |
6224f72b | 1971 | } |
6224f72b | 1972 | case 'x': |
3280af22 | 1973 | PL_doextract = TRUE; |
6224f72b GS |
1974 | s++; |
1975 | if (*s) | |
f4c556ac | 1976 | cddir = s; |
6224f72b GS |
1977 | break; |
1978 | case 0: | |
1979 | break; | |
1980 | case '-': | |
1981 | if (!*++s || isSPACE(*s)) { | |
1982 | argc--,argv++; | |
1983 | goto switch_end; | |
1984 | } | |
1985 | /* catch use of gnu style long options */ | |
1986 | if (strEQ(s, "version")) { | |
dd374669 | 1987 | s = (char *)"v"; |
6224f72b GS |
1988 | goto reswitch; |
1989 | } | |
1990 | if (strEQ(s, "help")) { | |
dd374669 | 1991 | s = (char *)"h"; |
6224f72b GS |
1992 | goto reswitch; |
1993 | } | |
1994 | s--; | |
1995 | /* FALL THROUGH */ | |
1996 | default: | |
cea2e8a9 | 1997 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
1998 | } |
1999 | } | |
6224f72b | 2000 | switch_end: |
54310121 | 2001 | |
f675dbe5 CB |
2002 | if ( |
2003 | #ifndef SECURE_INTERNAL_GETENV | |
2004 | !PL_tainting && | |
2005 | #endif | |
cf756827 | 2006 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 2007 | { |
e1ec3a88 | 2008 | const char *popt = s; |
74288ac8 GS |
2009 | while (isSPACE(*s)) |
2010 | s++; | |
317ea90d | 2011 | if (*s == '-' && *(s+1) == 'T') { |
22f7c9c9 | 2012 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 2013 | PL_tainting = TRUE; |
317ea90d MS |
2014 | PL_taint_warn = FALSE; |
2015 | } | |
74288ac8 | 2016 | else { |
bd61b366 | 2017 | char *popt_copy = NULL; |
74288ac8 | 2018 | while (s && *s) { |
4ea8f8fb | 2019 | char *d; |
74288ac8 GS |
2020 | while (isSPACE(*s)) |
2021 | s++; | |
2022 | if (*s == '-') { | |
2023 | s++; | |
2024 | if (isSPACE(*s)) | |
2025 | continue; | |
2026 | } | |
4ea8f8fb | 2027 | d = s; |
74288ac8 GS |
2028 | if (!*s) |
2029 | break; | |
e4af53b0 | 2030 | if (!strchr("CDIMUdmtwA", *s)) |
cea2e8a9 | 2031 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
2032 | while (++s && *s) { |
2033 | if (isSPACE(*s)) { | |
cf756827 GS |
2034 | if (!popt_copy) { |
2035 | popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0))); | |
2036 | s = popt_copy + (s - popt); | |
2037 | d = popt_copy + (d - popt); | |
2038 | } | |
4ea8f8fb MS |
2039 | *s++ = '\0'; |
2040 | break; | |
2041 | } | |
2042 | } | |
1c4db469 | 2043 | if (*d == 't') { |
317ea90d MS |
2044 | if( !PL_tainting ) { |
2045 | PL_taint_warn = TRUE; | |
2046 | PL_tainting = TRUE; | |
2047 | } | |
1c4db469 | 2048 | } else { |
97bd5664 | 2049 | moreswitches(d); |
1c4db469 | 2050 | } |
6224f72b | 2051 | } |
6224f72b GS |
2052 | } |
2053 | } | |
a0d0e21e | 2054 | |
20ef40cf GA |
2055 | #ifdef USE_SITECUSTOMIZE |
2056 | if (!minus_f) { | |
2057 | if (!PL_preambleav) | |
2058 | PL_preambleav = newAV(); | |
2059 | av_unshift(PL_preambleav, 1); | |
2060 | (void)av_store(PL_preambleav, 0, Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP)); | |
2061 | } | |
2062 | #endif | |
2063 | ||
6224f72b GS |
2064 | if (!scriptname) |
2065 | scriptname = argv[0]; | |
3280af22 | 2066 | if (PL_e_script) { |
6224f72b GS |
2067 | argc++,argv--; |
2068 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
2069 | } | |
bd61b366 | 2070 | else if (scriptname == NULL) { |
6224f72b GS |
2071 | #ifdef MSDOS |
2072 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
97bd5664 | 2073 | moreswitches("h"); |
6224f72b GS |
2074 | #endif |
2075 | scriptname = "-"; | |
2076 | } | |
2077 | ||
b7975bdd NC |
2078 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
2079 | assert (!PL_tainted); | |
2080 | TAINT; | |
2081 | S_set_caret_X(aTHX); | |
2082 | TAINT_NOT; | |
6224f72b GS |
2083 | init_perllib(); |
2084 | ||
a52eba0e NC |
2085 | { |
2086 | int suidscript; | |
2087 | const int fdscript | |
2088 | = open_script(scriptname, dosearch, sv, &suidscript); | |
6224f72b | 2089 | |
a52eba0e | 2090 | validate_suid(validarg, scriptname, fdscript, suidscript); |
6224f72b | 2091 | |
64ca3a65 | 2092 | #ifndef PERL_MICRO |
a52eba0e NC |
2093 | # if defined(SIGCHLD) || defined(SIGCLD) |
2094 | { | |
2095 | # ifndef SIGCHLD | |
2096 | # define SIGCHLD SIGCLD | |
2097 | # endif | |
2098 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
2099 | if (sigstate == (Sighandler_t) SIG_IGN) { | |
2100 | if (ckWARN(WARN_SIGNAL)) | |
2101 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), | |
2102 | "Can't ignore signal CHLD, forcing to default"); | |
2103 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
2104 | } | |
0b5b802d | 2105 | } |
a52eba0e | 2106 | # endif |
64ca3a65 | 2107 | #endif |
0b5b802d | 2108 | |
a52eba0e | 2109 | if (PL_doextract |
bf4acbe4 | 2110 | #ifdef MACOS_TRADITIONAL |
a52eba0e | 2111 | || gMacPerl_AlwaysExtract |
bf4acbe4 | 2112 | #endif |
a52eba0e | 2113 | ) { |
faef540c NC |
2114 | |
2115 | /* This will croak if suidscript is >= 0, as -x cannot be used with | |
2116 | setuid scripts. */ | |
2117 | forbid_setid('x', suidscript); | |
2118 | /* Hence you can't get here if suidscript >= 0 */ | |
2119 | ||
2120 | find_beginning(); | |
a52eba0e NC |
2121 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) |
2122 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
2123 | } | |
f4c556ac | 2124 | } |
6224f72b | 2125 | |
561b68a9 | 2126 | PL_main_cv = PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
2127 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); |
2128 | CvUNIQUE_on(PL_compcv); | |
2129 | ||
dd2155a4 | 2130 | CvPADLIST(PL_compcv) = pad_new(0); |
6224f72b | 2131 | |
0c4f7ff0 | 2132 | boot_core_PerlIO(); |
6224f72b | 2133 | boot_core_UNIVERSAL(); |
09bef843 | 2134 | boot_core_xsutils(); |
6224f72b GS |
2135 | |
2136 | if (xsinit) | |
acfe0abc | 2137 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 2138 | #ifndef PERL_MICRO |
d0d72822 | 2139 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) || defined(SYMBIAN) |
c5be433b | 2140 | init_os_extras(); |
6224f72b | 2141 | #endif |
64ca3a65 | 2142 | #endif |
6224f72b | 2143 | |
29209bc5 | 2144 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
2145 | # ifdef HAS_SOCKS5_INIT |
2146 | socks5_init(argv[0]); | |
2147 | # else | |
29209bc5 | 2148 | SOCKSinit(argv[0]); |
1b9c9cf5 | 2149 | # endif |
ac27b0f5 | 2150 | #endif |
29209bc5 | 2151 | |
6224f72b GS |
2152 | init_predump_symbols(); |
2153 | /* init_postdump_symbols not currently designed to be called */ | |
2154 | /* more than once (ENV isn't cleared first, for example) */ | |
2155 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2156 | if (!PL_do_undump) |
6224f72b GS |
2157 | init_postdump_symbols(argc,argv,env); |
2158 | ||
27da23d5 JH |
2159 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2160 | * or explicitly in some platforms. | |
085a54d9 | 2161 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 2162 | * look like the user wants to use UTF-8. */ |
a0fd4948 | 2163 | #if defined(__SYMBIAN32__) |
27da23d5 JH |
2164 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ |
2165 | #endif | |
06e66572 JH |
2166 | if (PL_unicode) { |
2167 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 2168 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
2169 | IO* io; |
2170 | PerlIO* fp; | |
2171 | SV* sv; | |
2172 | ||
a05d7ebb | 2173 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 2174 | * and the default open disciplines. */ |
a05d7ebb JH |
2175 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2176 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2177 | (fp = IoIFP(io))) | |
2178 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2179 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2180 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2181 | (fp = IoOFP(io))) | |
2182 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2183 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2184 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2185 | (fp = IoOFP(io))) | |
2186 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2187 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
fafc274c NC |
2188 | (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL, |
2189 | SVt_PV)))) { | |
a05d7ebb JH |
2190 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; |
2191 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2192 | if (in) { | |
2193 | if (out) | |
2194 | sv_setpvn(sv, ":utf8\0:utf8", 11); | |
2195 | else | |
2196 | sv_setpvn(sv, ":utf8\0", 6); | |
2197 | } | |
2198 | else if (out) | |
2199 | sv_setpvn(sv, "\0:utf8", 6); | |
2200 | SvSETMAGIC(sv); | |
2201 | } | |
b310b053 JH |
2202 | } |
2203 | } | |
2204 | ||
4ffa73a3 JH |
2205 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2206 | if (strEQ(s, "unsafe")) | |
2207 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2208 | else if (strEQ(s, "safe")) | |
2209 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2210 | else | |
2211 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2212 | } | |
2213 | ||
81d86705 NC |
2214 | #ifdef PERL_MAD |
2215 | if ((s = PerlEnv_getenv("PERL_XMLDUMP"))) { | |
2216 | PL_madskills = 1; | |
2217 | PL_minus_c = 1; | |
2218 | if (!s || !s[0]) | |
2219 | PL_xmlfp = PerlIO_stdout(); | |
2220 | else { | |
2221 | PL_xmlfp = PerlIO_open(s, "w"); | |
2222 | if (!PL_xmlfp) | |
2223 | Perl_croak(aTHX_ "Can't open %s", s); | |
2224 | } | |
2225 | my_setenv("PERL_XMLDUMP", Nullch); /* hide from subprocs */ | |
2226 | } | |
2227 | if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) { | |
2228 | PL_madskills = atoi(s); | |
2229 | my_setenv("PERL_MADSKILLS", Nullch); /* hide from subprocs */ | |
2230 | } | |
2231 | #endif | |
2232 | ||
6224f72b GS |
2233 | init_lexer(); |
2234 | ||
2235 | /* now parse the script */ | |
2236 | ||
93189314 | 2237 | SETERRNO(0,SS_NORMAL); |
3280af22 | 2238 | PL_error_count = 0; |
bf4acbe4 GS |
2239 | #ifdef MACOS_TRADITIONAL |
2240 | if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) { | |
2241 | if (PL_minus_c) | |
2242 | Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); | |
2243 | else { | |
2244 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", | |
2245 | MacPerl_MPWFileName(PL_origfilename)); | |
2246 | } | |
2247 | } | |
2248 | #else | |
3280af22 NIS |
2249 | if (yyparse() || PL_error_count) { |
2250 | if (PL_minus_c) | |
cea2e8a9 | 2251 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2252 | else { |
cea2e8a9 | 2253 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2254 | PL_origfilename); |
6224f72b GS |
2255 | } |
2256 | } | |
bf4acbe4 | 2257 | #endif |
57843af0 | 2258 | CopLINE_set(PL_curcop, 0); |
3280af22 NIS |
2259 | PL_curstash = PL_defstash; |
2260 | PL_preprocess = FALSE; | |
2261 | if (PL_e_script) { | |
2262 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 2263 | PL_e_script = NULL; |
6224f72b GS |
2264 | } |
2265 | ||
3280af22 | 2266 | if (PL_do_undump) |
6224f72b GS |
2267 | my_unexec(); |
2268 | ||
57843af0 GS |
2269 | if (isWARN_ONCE) { |
2270 | SAVECOPFILE(PL_curcop); | |
2271 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2272 | gv_check(PL_defstash); |
57843af0 | 2273 | } |
6224f72b GS |
2274 | |
2275 | LEAVE; | |
2276 | FREETMPS; | |
2277 | ||
2278 | #ifdef MYMALLOC | |
2279 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
2280 | dump_mstats("after compilation:"); | |
2281 | #endif | |
2282 | ||
2283 | ENTER; | |
3280af22 | 2284 | PL_restartop = 0; |
312caa8e | 2285 | return NULL; |
6224f72b GS |
2286 | } |
2287 | ||
954c1994 GS |
2288 | /* |
2289 | =for apidoc perl_run | |
2290 | ||
2291 | Tells a Perl interpreter to run. See L<perlembed>. | |
2292 | ||
2293 | =cut | |
2294 | */ | |
2295 | ||
6224f72b | 2296 | int |
0cb96387 | 2297 | perl_run(pTHXx) |
6224f72b | 2298 | { |
97aff369 | 2299 | dVAR; |
6224f72b | 2300 | I32 oldscope; |
14dd3ad8 | 2301 | int ret = 0; |
db36c5a1 | 2302 | dJMPENV; |
6224f72b | 2303 | |
ed6c66dd | 2304 | PERL_UNUSED_ARG(my_perl); |
9d4ba2ae | 2305 | |
3280af22 | 2306 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2307 | #ifdef VMS |
2308 | VMSISH_HUSHED = 0; | |
2309 | #endif | |
6224f72b | 2310 | |
14dd3ad8 | 2311 | JMPENV_PUSH(ret); |
6224f72b GS |
2312 | switch (ret) { |
2313 | case 1: | |
2314 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2315 | goto redo_body; |
14dd3ad8 | 2316 | case 0: /* normal completion */ |
14dd3ad8 GS |
2317 | redo_body: |
2318 | run_body(oldscope); | |
14dd3ad8 GS |
2319 | /* FALL THROUGH */ |
2320 | case 2: /* my_exit() */ | |
3280af22 | 2321 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2322 | LEAVE; |
2323 | FREETMPS; | |
3280af22 | 2324 | PL_curstash = PL_defstash; |
3a1ee7e8 | 2325 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
2326 | PL_endav && !PL_minus_c) |
2327 | call_list(oldscope, PL_endav); | |
6224f72b GS |
2328 | #ifdef MYMALLOC |
2329 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2330 | dump_mstats("after execution: "); | |
2331 | #endif | |
37038d91 | 2332 | ret = STATUS_EXIT; |
14dd3ad8 | 2333 | break; |
6224f72b | 2334 | case 3: |
312caa8e CS |
2335 | if (PL_restartop) { |
2336 | POPSTACK_TO(PL_mainstack); | |
2337 | goto redo_body; | |
6224f72b | 2338 | } |
bf49b057 | 2339 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 2340 | FREETMPS; |
14dd3ad8 GS |
2341 | ret = 1; |
2342 | break; | |
6224f72b GS |
2343 | } |
2344 | ||
14dd3ad8 GS |
2345 | JMPENV_POP; |
2346 | return ret; | |
312caa8e CS |
2347 | } |
2348 | ||
14dd3ad8 | 2349 | |
dd374669 | 2350 | STATIC void |
14dd3ad8 GS |
2351 | S_run_body(pTHX_ I32 oldscope) |
2352 | { | |
97aff369 | 2353 | dVAR; |
6224f72b | 2354 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 2355 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 2356 | |
3280af22 | 2357 | if (!PL_restartop) { |
81d86705 NC |
2358 | #ifdef PERL_MAD |
2359 | if (PL_xmlfp) { | |
2360 | xmldump_all(); | |
2361 | exit(0); /* less likely to core dump than my_exit(0) */ | |
2362 | } | |
2363 | #endif | |
6224f72b | 2364 | DEBUG_x(dump_all()); |
cf2782cd | 2365 | #ifdef DEBUGGING |
ecae49c0 NC |
2366 | if (!DEBUG_q_TEST) |
2367 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
cf2782cd | 2368 | #endif |
b900a521 JH |
2369 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
2370 | PTR2UV(thr))); | |
6224f72b | 2371 | |
3280af22 | 2372 | if (PL_minus_c) { |
bf4acbe4 | 2373 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
2374 | PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", |
2375 | (gMacPerl_ErrorFormat ? "# " : ""), | |
2376 | MacPerl_MPWFileName(PL_origfilename)); | |
bf4acbe4 | 2377 | #else |
bf49b057 | 2378 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
bf4acbe4 | 2379 | #endif |
6224f72b GS |
2380 | my_exit(0); |
2381 | } | |
3280af22 | 2382 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2383 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
2384 | if (PL_initav) |
2385 | call_list(oldscope, PL_initav); | |
6224f72b GS |
2386 | } |
2387 | ||
2388 | /* do it */ | |
2389 | ||
3280af22 | 2390 | if (PL_restartop) { |
533c011a | 2391 | PL_op = PL_restartop; |
3280af22 | 2392 | PL_restartop = 0; |
cea2e8a9 | 2393 | CALLRUNOPS(aTHX); |
6224f72b | 2394 | } |
3280af22 NIS |
2395 | else if (PL_main_start) { |
2396 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2397 | PL_op = PL_main_start; |
cea2e8a9 | 2398 | CALLRUNOPS(aTHX); |
6224f72b | 2399 | } |
f6b3007c JH |
2400 | my_exit(0); |
2401 | /* NOTREACHED */ | |
6224f72b GS |
2402 | } |
2403 | ||
954c1994 | 2404 | /* |
ccfc67b7 JH |
2405 | =head1 SV Manipulation Functions |
2406 | ||
954c1994 GS |
2407 | =for apidoc p||get_sv |
2408 | ||
2409 | Returns the SV of the specified Perl scalar. If C<create> is set and the | |
2410 | Perl variable does not exist then it will be created. If C<create> is not | |
2411 | set and the variable does not exist then NULL is returned. | |
2412 | ||
2413 | =cut | |
2414 | */ | |
2415 | ||
6224f72b | 2416 | SV* |
864dbfa3 | 2417 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
2418 | { |
2419 | GV *gv; | |
6224f72b GS |
2420 | gv = gv_fetchpv(name, create, SVt_PV); |
2421 | if (gv) | |
2422 | return GvSV(gv); | |
a0714e2c | 2423 | return NULL; |
6224f72b GS |
2424 | } |
2425 | ||
954c1994 | 2426 | /* |
ccfc67b7 JH |
2427 | =head1 Array Manipulation Functions |
2428 | ||
954c1994 GS |
2429 | =for apidoc p||get_av |
2430 | ||
2431 | Returns the AV of the specified Perl array. If C<create> is set and the | |
2432 | Perl variable does not exist then it will be created. If C<create> is not | |
2433 | set and the variable does not exist then NULL is returned. | |
2434 | ||
2435 | =cut | |
2436 | */ | |
2437 | ||
6224f72b | 2438 | AV* |
864dbfa3 | 2439 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b | 2440 | { |
c4420975 | 2441 | GV* const gv = gv_fetchpv(name, create, SVt_PVAV); |
6224f72b GS |
2442 | if (create) |
2443 | return GvAVn(gv); | |
2444 | if (gv) | |
2445 | return GvAV(gv); | |
7d49f689 | 2446 | return NULL; |
6224f72b GS |
2447 | } |
2448 | ||
954c1994 | 2449 | /* |
ccfc67b7 JH |
2450 | =head1 Hash Manipulation Functions |
2451 | ||
954c1994 GS |
2452 | =for apidoc p||get_hv |
2453 | ||
2454 | Returns the HV of the specified Perl hash. If C<create> is set and the | |
2455 | Perl variable does not exist then it will be created. If C<create> is not | |
2456 | set and the variable does not exist then NULL is returned. | |
2457 | ||
2458 | =cut | |
2459 | */ | |
2460 | ||
6224f72b | 2461 | HV* |
864dbfa3 | 2462 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 2463 | { |
890ce7af | 2464 | GV* const gv = gv_fetchpv(name, create, SVt_PVHV); |
a0d0e21e LW |
2465 | if (create) |
2466 | return GvHVn(gv); | |
2467 | if (gv) | |
2468 | return GvHV(gv); | |
5c284bb0 | 2469 | return NULL; |
a0d0e21e LW |
2470 | } |
2471 | ||
954c1994 | 2472 | /* |
ccfc67b7 JH |
2473 | =head1 CV Manipulation Functions |
2474 | ||
954c1994 GS |
2475 | =for apidoc p||get_cv |
2476 | ||
2477 | Returns the CV of the specified Perl subroutine. If C<create> is set and | |
2478 | the Perl subroutine does not exist then it will be declared (which has the | |
2479 | same effect as saying C<sub name;>). If C<create> is not set and the | |
2480 | subroutine does not exist then NULL is returned. | |
2481 | ||
2482 | =cut | |
2483 | */ | |
2484 | ||
a0d0e21e | 2485 | CV* |
864dbfa3 | 2486 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e | 2487 | { |
c4420975 | 2488 | GV* const gv = gv_fetchpv(name, create, SVt_PVCV); |
b099ddc0 | 2489 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 GS |
2490 | /* XXX this is probably not what they think they're getting. |
2491 | * It has the same effect as "sub name;", i.e. just a forward | |
2492 | * declaration! */ | |
8ebc5c01 | 2493 | if (create && !GvCVu(gv)) |
774d564b | 2494 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 2495 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
5f66b61c | 2496 | NULL, NULL); |
a0d0e21e | 2497 | if (gv) |
8ebc5c01 | 2498 | return GvCVu(gv); |
601f1833 | 2499 | return NULL; |
a0d0e21e LW |
2500 | } |
2501 | ||
79072805 LW |
2502 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2503 | ||
954c1994 | 2504 | /* |
ccfc67b7 JH |
2505 | |
2506 | =head1 Callback Functions | |
2507 | ||
954c1994 GS |
2508 | =for apidoc p||call_argv |
2509 | ||
2510 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2511 | ||
2512 | =cut | |
2513 | */ | |
2514 | ||
a0d0e21e | 2515 | I32 |
8f42b153 | 2516 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 2517 | |
8ac85365 NIS |
2518 | /* See G_* flags in cop.h */ |
2519 | /* null terminated arg list */ | |
8990e307 | 2520 | { |
97aff369 | 2521 | dVAR; |
a0d0e21e | 2522 | dSP; |
8990e307 | 2523 | |
924508f0 | 2524 | PUSHMARK(SP); |
a0d0e21e | 2525 | if (argv) { |
8990e307 | 2526 | while (*argv) { |
a0d0e21e | 2527 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
2528 | argv++; |
2529 | } | |
a0d0e21e | 2530 | PUTBACK; |
8990e307 | 2531 | } |
864dbfa3 | 2532 | return call_pv(sub_name, flags); |
8990e307 LW |
2533 | } |
2534 | ||
954c1994 GS |
2535 | /* |
2536 | =for apidoc p||call_pv | |
2537 | ||
2538 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2539 | ||
2540 | =cut | |
2541 | */ | |
2542 | ||
a0d0e21e | 2543 | I32 |
864dbfa3 | 2544 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2545 | /* name of the subroutine */ |
2546 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2547 | { |
864dbfa3 | 2548 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
2549 | } |
2550 | ||
954c1994 GS |
2551 | /* |
2552 | =for apidoc p||call_method | |
2553 | ||
2554 | Performs a callback to the specified Perl method. The blessed object must | |
2555 | be on the stack. See L<perlcall>. | |
2556 | ||
2557 | =cut | |
2558 | */ | |
2559 | ||
a0d0e21e | 2560 | I32 |
864dbfa3 | 2561 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2562 | /* name of the subroutine */ |
2563 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2564 | { |
968b3946 | 2565 | return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); |
a0d0e21e LW |
2566 | } |
2567 | ||
2568 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2569 | /* |
2570 | =for apidoc p||call_sv | |
2571 | ||
2572 | Performs a callback to the Perl sub whose name is in the SV. See | |
2573 | L<perlcall>. | |
2574 | ||
2575 | =cut | |
2576 | */ | |
2577 | ||
a0d0e21e | 2578 | I32 |
864dbfa3 | 2579 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 | 2580 | /* See G_* flags in cop.h */ |
a0d0e21e | 2581 | { |
27da23d5 | 2582 | dVAR; dSP; |
a0d0e21e | 2583 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 2584 | UNOP method_op; |
aa689395 | 2585 | I32 oldmark; |
8ea43dc8 | 2586 | VOL I32 retval = 0; |
a0d0e21e | 2587 | I32 oldscope; |
54310121 | 2588 | bool oldcatch = CATCH_GET; |
6224f72b | 2589 | int ret; |
c4420975 | 2590 | OP* const oldop = PL_op; |
db36c5a1 | 2591 | dJMPENV; |
1e422769 | 2592 | |
a0d0e21e LW |
2593 | if (flags & G_DISCARD) { |
2594 | ENTER; | |
2595 | SAVETMPS; | |
2596 | } | |
2597 | ||
aa689395 | 2598 | Zero(&myop, 1, LOGOP); |
5f66b61c | 2599 | myop.op_next = NULL; |
f51d4af5 | 2600 | if (!(flags & G_NOARGS)) |
aa689395 | 2601 | myop.op_flags |= OPf_STACKED; |
54310121 | 2602 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2603 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2604 | OPf_WANT_SCALAR); | |
462e5cf6 | 2605 | SAVEOP(); |
533c011a | 2606 | PL_op = (OP*)&myop; |
aa689395 | 2607 | |
3280af22 NIS |
2608 | EXTEND(PL_stack_sp, 1); |
2609 | *++PL_stack_sp = sv; | |
aa689395 | 2610 | oldmark = TOPMARK; |
3280af22 | 2611 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2612 | |
3280af22 | 2613 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2614 | /* Handle first BEGIN of -d. */ |
3280af22 | 2615 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2616 | /* Try harder, since this may have been a sighandler, thus |
2617 | * curstash may be meaningless. */ | |
3280af22 | 2618 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 2619 | && !(flags & G_NODEBUG)) |
533c011a | 2620 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2621 | |
968b3946 GS |
2622 | if (flags & G_METHOD) { |
2623 | Zero(&method_op, 1, UNOP); | |
2624 | method_op.op_next = PL_op; | |
2625 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
2626 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; | |
f39d0b86 | 2627 | PL_op = (OP*)&method_op; |
968b3946 GS |
2628 | } |
2629 | ||
312caa8e | 2630 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2631 | CATCH_SET(TRUE); |
d6f07c05 | 2632 | CALL_BODY_SUB((OP*)&myop); |
312caa8e | 2633 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2634 | CATCH_SET(oldcatch); |
312caa8e CS |
2635 | } |
2636 | else { | |
d78bda3d | 2637 | myop.op_other = (OP*)&myop; |
3280af22 | 2638 | PL_markstack_ptr--; |
edb2152a | 2639 | create_eval_scope(flags|G_FAKINGEVAL); |
3280af22 | 2640 | PL_markstack_ptr++; |
a0d0e21e | 2641 | |
14dd3ad8 | 2642 | JMPENV_PUSH(ret); |
edb2152a | 2643 | |
6224f72b GS |
2644 | switch (ret) { |
2645 | case 0: | |
14dd3ad8 | 2646 | redo_body: |
d6f07c05 | 2647 | CALL_BODY_SUB((OP*)&myop); |
312caa8e CS |
2648 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2649 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2650 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 2651 | break; |
6224f72b | 2652 | case 1: |
f86702cc | 2653 | STATUS_ALL_FAILURE; |
a0d0e21e | 2654 | /* FALL THROUGH */ |
6224f72b | 2655 | case 2: |
a0d0e21e | 2656 | /* my_exit() was called */ |
3280af22 | 2657 | PL_curstash = PL_defstash; |
a0d0e21e | 2658 | FREETMPS; |
14dd3ad8 | 2659 | JMPENV_POP; |
cc3604b1 | 2660 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2661 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2662 | my_exit_jump(); |
a0d0e21e | 2663 | /* NOTREACHED */ |
6224f72b | 2664 | case 3: |
3280af22 | 2665 | if (PL_restartop) { |
533c011a | 2666 | PL_op = PL_restartop; |
3280af22 | 2667 | PL_restartop = 0; |
312caa8e | 2668 | goto redo_body; |
a0d0e21e | 2669 | } |
3280af22 | 2670 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2671 | if (flags & G_ARRAY) |
2672 | retval = 0; | |
2673 | else { | |
2674 | retval = 1; | |
3280af22 | 2675 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2676 | } |
312caa8e | 2677 | break; |
a0d0e21e | 2678 | } |
a0d0e21e | 2679 | |
edb2152a NC |
2680 | if (PL_scopestack_ix > oldscope) |
2681 | delete_eval_scope(); | |
14dd3ad8 | 2682 | JMPENV_POP; |
a0d0e21e | 2683 | } |
1e422769 | 2684 | |
a0d0e21e | 2685 | if (flags & G_DISCARD) { |
3280af22 | 2686 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2687 | retval = 0; |
2688 | FREETMPS; | |
2689 | LEAVE; | |
2690 | } | |
533c011a | 2691 | PL_op = oldop; |
a0d0e21e LW |
2692 | return retval; |
2693 | } | |
2694 | ||
6e72f9df | 2695 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2696 | |
954c1994 GS |
2697 | /* |
2698 | =for apidoc p||eval_sv | |
2699 | ||
2700 | Tells Perl to C<eval> the string in the SV. | |
2701 | ||
2702 | =cut | |
2703 | */ | |
2704 | ||
a0d0e21e | 2705 | I32 |
864dbfa3 | 2706 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2707 | |
8ac85365 | 2708 | /* See G_* flags in cop.h */ |
a0d0e21e | 2709 | { |
97aff369 | 2710 | dVAR; |
924508f0 | 2711 | dSP; |
a0d0e21e | 2712 | UNOP myop; /* fake syntax tree node */ |
8ea43dc8 SP |
2713 | VOL I32 oldmark = SP - PL_stack_base; |
2714 | VOL I32 retval = 0; | |
6224f72b | 2715 | int ret; |
c4420975 | 2716 | OP* const oldop = PL_op; |
db36c5a1 | 2717 | dJMPENV; |
84902520 | 2718 | |
4633a7c4 LW |
2719 | if (flags & G_DISCARD) { |
2720 | ENTER; | |
2721 | SAVETMPS; | |
2722 | } | |
2723 | ||
462e5cf6 | 2724 | SAVEOP(); |
533c011a NIS |
2725 | PL_op = (OP*)&myop; |
2726 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2727 | EXTEND(PL_stack_sp, 1); |
2728 | *++PL_stack_sp = sv; | |
79072805 | 2729 | |
4633a7c4 LW |
2730 | if (!(flags & G_NOARGS)) |
2731 | myop.op_flags = OPf_STACKED; | |
5f66b61c | 2732 | myop.op_next = NULL; |
6e72f9df | 2733 | myop.op_type = OP_ENTEREVAL; |
54310121 | 2734 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2735 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2736 | OPf_WANT_SCALAR); | |
6e72f9df | 2737 | if (flags & G_KEEPERR) |
2738 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2739 | |
dedbcade DM |
2740 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2741 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2742 | TAINT_PROPER("eval_sv()"); | |
2743 | ||
14dd3ad8 | 2744 | JMPENV_PUSH(ret); |
6224f72b GS |
2745 | switch (ret) { |
2746 | case 0: | |
14dd3ad8 | 2747 | redo_body: |
d6f07c05 | 2748 | CALL_BODY_EVAL((OP*)&myop); |
312caa8e CS |
2749 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2750 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2751 | sv_setpvn(ERRSV,"",0); |
4633a7c4 | 2752 | break; |
6224f72b | 2753 | case 1: |
f86702cc | 2754 | STATUS_ALL_FAILURE; |
4633a7c4 | 2755 | /* FALL THROUGH */ |
6224f72b | 2756 | case 2: |
4633a7c4 | 2757 | /* my_exit() was called */ |
3280af22 | 2758 | PL_curstash = PL_defstash; |
4633a7c4 | 2759 | FREETMPS; |
14dd3ad8 | 2760 | JMPENV_POP; |
cc3604b1 | 2761 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2762 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2763 | my_exit_jump(); |
4633a7c4 | 2764 | /* NOTREACHED */ |
6224f72b | 2765 | case 3: |
3280af22 | 2766 | if (PL_restartop) { |
533c011a | 2767 | PL_op = PL_restartop; |
3280af22 | 2768 | PL_restartop = 0; |
312caa8e | 2769 | goto redo_body; |
4633a7c4 | 2770 | } |
3280af22 | 2771 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2772 | if (flags & G_ARRAY) |
2773 | retval = 0; | |
2774 | else { | |
2775 | retval = 1; | |
3280af22 | 2776 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2777 | } |
312caa8e | 2778 | break; |
4633a7c4 LW |
2779 | } |
2780 | ||
14dd3ad8 | 2781 | JMPENV_POP; |
4633a7c4 | 2782 | if (flags & G_DISCARD) { |
3280af22 | 2783 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2784 | retval = 0; |
2785 | FREETMPS; | |
2786 | LEAVE; | |
2787 | } | |
533c011a | 2788 | PL_op = oldop; |
4633a7c4 LW |
2789 | return retval; |
2790 | } | |
2791 | ||
954c1994 GS |
2792 | /* |
2793 | =for apidoc p||eval_pv | |
2794 | ||
2795 | Tells Perl to C<eval> the given string and return an SV* result. | |
2796 | ||
2797 | =cut | |
2798 | */ | |
2799 | ||
137443ea | 2800 | SV* |
864dbfa3 | 2801 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2802 | { |
97aff369 | 2803 | dVAR; |
137443ea | 2804 | dSP; |
2805 | SV* sv = newSVpv(p, 0); | |
2806 | ||
864dbfa3 | 2807 | eval_sv(sv, G_SCALAR); |
137443ea | 2808 | SvREFCNT_dec(sv); |
2809 | ||
2810 | SPAGAIN; | |
2811 | sv = POPs; | |
2812 | PUTBACK; | |
2813 | ||
2d8e6c8d | 2814 | if (croak_on_error && SvTRUE(ERRSV)) { |
0510663f | 2815 | Perl_croak(aTHX_ SvPVx_nolen_const(ERRSV)); |
2d8e6c8d | 2816 | } |
137443ea | 2817 | |
2818 | return sv; | |
2819 | } | |
2820 | ||
4633a7c4 LW |
2821 | /* Require a module. */ |
2822 | ||
954c1994 | 2823 | /* |
ccfc67b7 JH |
2824 | =head1 Embedding Functions |
2825 | ||
954c1994 GS |
2826 | =for apidoc p||require_pv |
2827 | ||
7d3fb230 BS |
2828 | Tells Perl to C<require> the file named by the string argument. It is |
2829 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2830 | implemented that way; consider using load_module instead. |
954c1994 | 2831 | |
7d3fb230 | 2832 | =cut */ |
954c1994 | 2833 | |
4633a7c4 | 2834 | void |
864dbfa3 | 2835 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2836 | { |
97aff369 | 2837 | dVAR; |
d3acc0f7 | 2838 | dSP; |
97aff369 | 2839 | SV* sv; |
e788e7d3 | 2840 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 | 2841 | PUTBACK; |
be41e5d9 NC |
2842 | sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); |
2843 | eval_sv(sv_2mortal(sv), G_DISCARD); | |
d3acc0f7 JP |
2844 | SPAGAIN; |
2845 | POPSTACK; | |
79072805 LW |
2846 | } |
2847 | ||
79072805 | 2848 | void |
e1ec3a88 | 2849 | Perl_magicname(pTHX_ const char *sym, const char *name, I32 namlen) |
79072805 | 2850 | { |
71315bf2 | 2851 | register GV * const gv = gv_fetchpv(sym, GV_ADD, SVt_PV); |
79072805 | 2852 | |
c4420975 | 2853 | if (gv) |
14befaf4 | 2854 | sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen); |
79072805 LW |
2855 | } |
2856 | ||
76e3520e | 2857 | STATIC void |
e1ec3a88 | 2858 | S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2859 | { |
ab821d7f | 2860 | /* This message really ought to be max 23 lines. |
75c72d73 | 2861 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2862 | |
27da23d5 | 2863 | static const char * const usage_msg[] = { |
aefc56c5 SF |
2864 | "-0[octal] specify record separator (\\0, if no argument)", |
2865 | "-A[mod][=pattern] activate all/given assertions", | |
2866 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
2867 | "-C[number/list] enables the listed Unicode features", | |
2868 | "-c check syntax only (runs BEGIN and CHECK blocks)", | |
2869 | "-d[:debugger] run program under debugger", | |
2870 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
2871 | "-e program one line of program (several -e's allowed, omit programfile)", | |
bc9b29db | 2872 | "-E program like -e, but enables all optional features", |
aefc56c5 | 2873 | "-f don't do $sitelib/sitecustomize.pl at startup", |
aefc56c5 SF |
2874 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
2875 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
2876 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
2877 | "-l[octal] enable line ending processing, specifies line terminator", | |
2878 | "-[mM][-]module execute \"use/no module...\" before executing program", | |
2879 | "-n assume \"while (<>) { ... }\" loop around program", | |
2880 | "-p assume loop like -n but print line also, like sed", | |
2881 | "-P run program through C preprocessor before compilation", | |
2882 | "-s enable rudimentary parsing for switches after programfile", | |
2883 | "-S look for programfile using PATH environment variable", | |
2884 | "-t enable tainting warnings", | |
2885 | "-T enable tainting checks", | |
2886 | "-u dump core after parsing program", | |
2887 | "-U allow unsafe operations", | |
2888 | "-v print version, subversion (includes VERY IMPORTANT perl info)", | |
2889 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
2890 | "-w enable many useful warnings (RECOMMENDED)", | |
2891 | "-W enable all warnings", | |
2892 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", | |
2893 | "-X disable all warnings", | |
fb73857a | 2894 | "\n", |
2895 | NULL | |
2896 | }; | |
27da23d5 | 2897 | const char * const *p = usage_msg; |
fb73857a | 2898 | |
b0e47665 GS |
2899 | PerlIO_printf(PerlIO_stdout(), |
2900 | "\nUsage: %s [switches] [--] [programfile] [arguments]", | |
2901 | name); | |
fb73857a | 2902 | while (*p) |
b0e47665 | 2903 | PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); |
4633a7c4 LW |
2904 | } |
2905 | ||
b4ab917c DM |
2906 | /* convert a string of -D options (or digits) into an int. |
2907 | * sets *s to point to the char after the options */ | |
2908 | ||
2909 | #ifdef DEBUGGING | |
2910 | int | |
e1ec3a88 | 2911 | Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) |
b4ab917c | 2912 | { |
27da23d5 | 2913 | static const char * const usage_msgd[] = { |
e6e64d9b JC |
2914 | " Debugging flag values: (see also -d)", |
2915 | " p Tokenizing and parsing (with v, displays parse stack)", | |
3679267a | 2916 | " s Stack snapshots (with v, displays all stacks)", |
e6e64d9b JC |
2917 | " l Context (loop) stack processing", |
2918 | " t Trace execution", | |
2919 | " o Method and overloading resolution", | |
2920 | " c String/numeric conversions", | |
2921 | " P Print profiling info, preprocessor command for -P, source file input state", | |
2922 | " m Memory allocation", | |
2923 | " f Format processing", | |
2924 | " r Regular expression parsing and execution", | |
2925 | " x Syntax tree dump", | |
3679267a | 2926 | " u Tainting checks", |
e6e64d9b JC |
2927 | " H Hash dump -- usurps values()", |
2928 | " X Scratchpad allocation", | |
2929 | " D Cleaning up", | |
2930 | " S Thread synchronization", | |
2931 | " T Tokenising", | |
2932 | " R Include reference counts of dumped variables (eg when using -Ds)", | |
2933 | " J Do not s,t,P-debug (Jump over) opcodes within package DB", | |
2934 | " v Verbose: use in conjunction with other flags", | |
2935 | " C Copy On Write", | |
2936 | " A Consistency checks on internal structures", | |
3679267a | 2937 | " q quiet - currently only suppresses the 'EXECUTING' message", |
e6e64d9b JC |
2938 | NULL |
2939 | }; | |
b4ab917c DM |
2940 | int i = 0; |
2941 | if (isALPHA(**s)) { | |
2942 | /* if adding extra options, remember to update DEBUG_MASK */ | |
88d2d28a | 2943 | static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAq"; |
b4ab917c DM |
2944 | |
2945 | for (; isALNUM(**s); (*s)++) { | |
c4420975 | 2946 | const char * const d = strchr(debopts,**s); |
b4ab917c DM |
2947 | if (d) |
2948 | i |= 1 << (d - debopts); | |
2949 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
2950 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
2951 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
2952 | } |
2953 | } | |
e6e64d9b | 2954 | else if (isDIGIT(**s)) { |
b4ab917c DM |
2955 | i = atoi(*s); |
2956 | for (; isALNUM(**s); (*s)++) ; | |
2957 | } | |
ddcf8bc1 | 2958 | else if (givehelp) { |
06e869a4 | 2959 | const char *const *p = usage_msgd; |
e6e64d9b JC |
2960 | while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); |
2961 | } | |
b4ab917c DM |
2962 | # ifdef EBCDIC |
2963 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
2964 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
2965 | "-Dp not implemented on this platform\n"); | |
2966 | # endif | |
2967 | return i; | |
2968 | } | |
2969 | #endif | |
2970 | ||
79072805 LW |
2971 | /* This routine handles any switches that can be given during run */ |
2972 | ||
2973 | char * | |
97bd5664 | 2974 | Perl_moreswitches(pTHX_ char *s) |
79072805 | 2975 | { |
27da23d5 | 2976 | dVAR; |
84c133a0 | 2977 | UV rschar; |
79072805 LW |
2978 | |
2979 | switch (*s) { | |
2980 | case '0': | |
a863c7d1 | 2981 | { |
f2095865 | 2982 | I32 flags = 0; |
a3b680e6 | 2983 | STRLEN numlen; |
f2095865 JH |
2984 | |
2985 | SvREFCNT_dec(PL_rs); | |
2986 | if (s[1] == 'x' && s[2]) { | |
a3b680e6 | 2987 | const char *e = s+=2; |
f2095865 JH |
2988 | U8 *tmps; |
2989 | ||
a3b680e6 AL |
2990 | while (*e) |
2991 | e++; | |
f2095865 JH |
2992 | numlen = e - s; |
2993 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
2994 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
2995 | if (s + numlen < e) { | |
2996 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
2997 | numlen = 0; | |
2998 | s--; | |
2999 | } | |
396482e1 | 3000 | PL_rs = newSVpvs(""); |
c5661c80 | 3001 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
3002 | tmps = (U8*)SvPVX(PL_rs); |
3003 | uvchr_to_utf8(tmps, rschar); | |
3004 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
3005 | SvUTF8_on(PL_rs); | |
3006 | } | |
3007 | else { | |
3008 | numlen = 4; | |
3009 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
3010 | if (rschar & ~((U8)~0)) | |
3011 | PL_rs = &PL_sv_undef; | |
3012 | else if (!rschar && numlen >= 2) | |
396482e1 | 3013 | PL_rs = newSVpvs(""); |
f2095865 JH |
3014 | else { |
3015 | char ch = (char)rschar; | |
3016 | PL_rs = newSVpvn(&ch, 1); | |
3017 | } | |
3018 | } | |
800633c3 | 3019 | sv_setsv(get_sv("/", TRUE), PL_rs); |
f2095865 | 3020 | return s + numlen; |
a863c7d1 | 3021 | } |
46487f74 | 3022 | case 'C': |
a05d7ebb | 3023 | s++; |
dd374669 | 3024 | PL_unicode = parse_unicode_opts( (const char **)&s ); |
5a22a2bb NC |
3025 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
3026 | PL_utf8cache = -1; | |
46487f74 | 3027 | return s; |
2304df62 | 3028 | case 'F': |
3280af22 | 3029 | PL_minus_F = TRUE; |
ebce5377 RGS |
3030 | PL_splitstr = ++s; |
3031 | while (*s && !isSPACE(*s)) ++s; | |
e49e380e | 3032 | PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr); |
2304df62 | 3033 | return s; |
79072805 | 3034 | case 'a': |
3280af22 | 3035 | PL_minus_a = TRUE; |
79072805 LW |
3036 | s++; |
3037 | return s; | |
3038 | case 'c': | |
3280af22 | 3039 | PL_minus_c = TRUE; |
79072805 LW |
3040 | s++; |
3041 | return s; | |
3042 | case 'd': | |
97bd5664 | 3043 | forbid_setid('d', -1); |
4633a7c4 | 3044 | s++; |
2cbb2ee1 RGS |
3045 | |
3046 | /* -dt indicates to the debugger that threads will be used */ | |
3047 | if (*s == 't' && !isALNUM(s[1])) { | |
3048 | ++s; | |
3049 | my_setenv("PERL5DB_THREADED", "1"); | |
3050 | } | |
3051 | ||
70c94a19 RR |
3052 | /* The following permits -d:Mod to accepts arguments following an = |
3053 | in the fashion that -MSome::Mod does. */ | |
3054 | if (*s == ':' || *s == '=') { | |
06b5626a | 3055 | const char *start; |
396482e1 | 3056 | SV * const sv = newSVpvs("use Devel::"); |
70c94a19 RR |
3057 | start = ++s; |
3058 | /* We now allow -d:Module=Foo,Bar */ | |
3059 | while(isALNUM(*s) || *s==':') ++s; | |
3060 | if (*s != '=') | |
3061 | sv_catpv(sv, start); | |
3062 | else { | |
3063 | sv_catpvn(sv, start, s-start); | |
95a2b409 RGS |
3064 | /* Don't use NUL as q// delimiter here, this string goes in the |
3065 | * environment. */ | |
3066 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s); | |
70c94a19 | 3067 | } |
4633a7c4 | 3068 | s += strlen(s); |
184f32ec | 3069 | my_setenv("PERL5DB", SvPV_nolen_const(sv)); |
4633a7c4 | 3070 | } |
ed094faf | 3071 | if (!PL_perldb) { |
3280af22 | 3072 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 3073 | init_debugger(); |
ed094faf | 3074 | } |
79072805 LW |
3075 | return s; |
3076 | case 'D': | |
0453d815 | 3077 | { |
79072805 | 3078 | #ifdef DEBUGGING |
97bd5664 | 3079 | forbid_setid('D', -1); |
b4ab917c | 3080 | s++; |
dd374669 | 3081 | PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 3082 | #else /* !DEBUGGING */ |
0453d815 | 3083 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 3084 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 3085 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 3086 | for (s++; isALNUM(*s); s++) ; |
79072805 | 3087 | #endif |
79072805 | 3088 | return s; |
0453d815 | 3089 | } |
4633a7c4 | 3090 | case 'h': |
ac27b0f5 | 3091 | usage(PL_origargv[0]); |
7ca617d0 | 3092 | my_exit(0); |
79072805 | 3093 | case 'i': |
43c5f42d | 3094 | Safefree(PL_inplace); |
c030f24b GH |
3095 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
3096 | if (*(s+1) == '\0') { | |
c86a4f2e | 3097 | PL_inplace = savepvs(".bak"); |
c030f24b GH |
3098 | return s+1; |
3099 | } | |
3100 | #endif /* __CYGWIN__ */ | |
5ef5d758 | 3101 | { |
d4c19fe8 | 3102 | const char * const start = ++s; |
5ef5d758 NC |
3103 | while (*s && !isSPACE(*s)) |
3104 | ++s; | |
3105 | ||
3106 | PL_inplace = savepvn(start, s - start); | |
3107 | } | |
7b8d334a | 3108 | if (*s) { |
5ef5d758 | 3109 | ++s; |
7b8d334a | 3110 | if (*s == '-') /* Additional switches on #! line. */ |
5ef5d758 | 3111 | s++; |
7b8d334a | 3112 | } |
fb73857a | 3113 | return s; |
4e49a025 | 3114 | case 'I': /* -I handled both here and in parse_body() */ |
97bd5664 | 3115 | forbid_setid('I', -1); |
fb73857a | 3116 | ++s; |
3117 | while (*s && isSPACE(*s)) | |
3118 | ++s; | |
3119 | if (*s) { | |
774d564b | 3120 | char *e, *p; |
0df16ed7 GS |
3121 | p = s; |
3122 | /* ignore trailing spaces (possibly followed by other switches) */ | |
3123 | do { | |
3124 | for (e = p; *e && !isSPACE(*e); e++) ; | |
3125 | p = e; | |
3126 | while (isSPACE(*p)) | |
3127 | p++; | |
3128 | } while (*p && *p != '-'); | |
3129 | e = savepvn(s, e-s); | |
88fe16b2 | 3130 | incpush(e, TRUE, TRUE, FALSE, FALSE); |
0df16ed7 GS |
3131 | Safefree(e); |
3132 | s = p; | |
3133 | if (*s == '-') | |
3134 | s++; | |
79072805 LW |
3135 | } |
3136 | else | |
a67e862a | 3137 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 3138 | return s; |
79072805 | 3139 | case 'l': |
3280af22 | 3140 | PL_minus_l = TRUE; |
79072805 | 3141 | s++; |
7889fe52 NIS |
3142 | if (PL_ors_sv) { |
3143 | SvREFCNT_dec(PL_ors_sv); | |
a0714e2c | 3144 | PL_ors_sv = NULL; |
7889fe52 | 3145 | } |
79072805 | 3146 | if (isDIGIT(*s)) { |
53305cf1 | 3147 | I32 flags = 0; |
a3b680e6 | 3148 | STRLEN numlen; |
396482e1 | 3149 | PL_ors_sv = newSVpvs("\n"); |
53305cf1 NC |
3150 | numlen = 3 + (*s == '0'); |
3151 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3152 | s += numlen; |
3153 | } | |
3154 | else { | |
8bfdd7d9 | 3155 | if (RsPARA(PL_rs)) { |
396482e1 | 3156 | PL_ors_sv = newSVpvs("\n\n"); |
7889fe52 NIS |
3157 | } |
3158 | else { | |
8bfdd7d9 | 3159 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3160 | } |
79072805 LW |
3161 | } |
3162 | return s; | |
06492da6 | 3163 | case 'A': |
97bd5664 | 3164 | forbid_setid('A', -1); |
930366bd RGS |
3165 | if (!PL_preambleav) |
3166 | PL_preambleav = newAV(); | |
aefc56c5 SF |
3167 | s++; |
3168 | { | |
44f8325f | 3169 | char * const start = s; |
396482e1 | 3170 | SV * const sv = newSVpvs("use assertions::activate"); |
aefc56c5 SF |
3171 | while(isALNUM(*s) || *s == ':') ++s; |
3172 | if (s != start) { | |
396482e1 | 3173 | sv_catpvs(sv, "::"); |
aefc56c5 SF |
3174 | sv_catpvn(sv, start, s-start); |
3175 | } | |
3176 | if (*s == '=') { | |
0c5a913d | 3177 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q%c%s%c)", 0, ++s, 0); |
aefc56c5 SF |
3178 | s+=strlen(s); |
3179 | } | |
3180 | else if (*s != '\0') { | |
551405c4 | 3181 | Perl_croak(aTHX_ "Can't use '%c' after -A%.*s", *s, (int)(s-start), start); |
aefc56c5 | 3182 | } |
06492da6 | 3183 | av_push(PL_preambleav, sv); |
aefc56c5 | 3184 | return s; |
06492da6 | 3185 | } |
1a30305b | 3186 | case 'M': |
97bd5664 | 3187 | forbid_setid('M', -1); /* XXX ? */ |
1a30305b | 3188 | /* FALL THROUGH */ |
3189 | case 'm': | |
97bd5664 | 3190 | forbid_setid('m', -1); /* XXX ? */ |
1a30305b | 3191 | if (*++s) { |
a5f75d66 | 3192 | char *start; |
11343788 | 3193 | SV *sv; |
e1ec3a88 | 3194 | const char *use = "use "; |
a5f75d66 | 3195 | /* -M-foo == 'no foo' */ |
d0043bd1 NC |
3196 | /* Leading space on " no " is deliberate, to make both |
3197 | possibilities the same length. */ | |
3198 | if (*s == '-') { use = " no "; ++s; } | |
3199 | sv = newSVpvn(use,4); | |
a5f75d66 | 3200 | start = s; |
1a30305b | 3201 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 3202 | while(isALNUM(*s) || *s==':') ++s; |
3203 | if (*s != '=') { | |
11343788 | 3204 | sv_catpv(sv, start); |
c07a80fd | 3205 | if (*(start-1) == 'm') { |
3206 | if (*s != '\0') | |
cea2e8a9 | 3207 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
396482e1 | 3208 | sv_catpvs( sv, " ()"); |
c07a80fd | 3209 | } |
3210 | } else { | |
6df41af2 | 3211 | if (s == start) |
be98fb35 GS |
3212 | Perl_croak(aTHX_ "Module name required with -%c option", |
3213 | s[-1]); | |
11343788 | 3214 | sv_catpvn(sv, start, s-start); |
396482e1 GA |
3215 | sv_catpvs(sv, " split(/,/,q"); |
3216 | sv_catpvs(sv, "\0"); /* Use NUL as q//-delimiter. */ | |
11343788 | 3217 | sv_catpv(sv, ++s); |
396482e1 | 3218 | sv_catpvs(sv, "\0)"); |
c07a80fd | 3219 | } |
1a30305b | 3220 | s += strlen(s); |
5c831c24 | 3221 | if (!PL_preambleav) |
3280af22 NIS |
3222 | PL_preambleav = newAV(); |
3223 | av_push(PL_preambleav, sv); | |
1a30305b | 3224 | } |
3225 | else | |
9e81e6a1 | 3226 | Perl_croak(aTHX_ "Missing argument to -%c", *(s-1)); |
1a30305b | 3227 | return s; |
79072805 | 3228 | case 'n': |
3280af22 | 3229 | PL_minus_n = TRUE; |
79072805 LW |
3230 | s++; |
3231 | return s; | |
3232 | case 'p': | |
3280af22 | 3233 | PL_minus_p = TRUE; |
79072805 LW |
3234 | s++; |
3235 | return s; | |
3236 | case 's': | |
97bd5664 | 3237 | forbid_setid('s', -1); |
3280af22 | 3238 | PL_doswitches = TRUE; |
79072805 LW |
3239 | s++; |
3240 | return s; | |
6537fe72 MS |
3241 | case 't': |
3242 | if (!PL_tainting) | |
22f7c9c9 | 3243 | TOO_LATE_FOR('t'); |
6537fe72 MS |
3244 | s++; |
3245 | return s; | |
463ee0b2 | 3246 | case 'T': |
3280af22 | 3247 | if (!PL_tainting) |
22f7c9c9 | 3248 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
3249 | s++; |
3250 | return s; | |
79072805 | 3251 | case 'u': |
bf4acbe4 GS |
3252 | #ifdef MACOS_TRADITIONAL |
3253 | Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); | |
3254 | #endif | |
3280af22 | 3255 | PL_do_undump = TRUE; |
79072805 LW |
3256 | s++; |
3257 | return s; | |
3258 | case 'U': | |
3280af22 | 3259 | PL_unsafe = TRUE; |
79072805 LW |
3260 | s++; |
3261 | return s; | |
3262 | case 'v': | |
d7aa5382 | 3263 | if (!sv_derived_from(PL_patchlevel, "version")) |
7a5b473e | 3264 | upg_version(PL_patchlevel); |
8e9464f1 | 3265 | #if !defined(DGUX) |
b0e47665 | 3266 | PerlIO_printf(PerlIO_stdout(), |
7850f74c GA |
3267 | Perl_form(aTHX_ "\nThis is perl, %"SVf |
3268 | #ifdef PERL_PATCHNUM | |
3269 | " DEVEL" STRINGIFY(PERL_PATCHNUM) | |
3270 | #endif | |
3271 | " built for %s", | |
be2597df | 3272 | SVfARG(vstringify(PL_patchlevel)), |
95b63a38 | 3273 | ARCHNAME)); |
8e9464f1 JH |
3274 | #else /* DGUX */ |
3275 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
3276 | PerlIO_printf(PerlIO_stdout(), | |
52ea0aec | 3277 | Perl_form(aTHX_ "\nThis is perl, %"SVf"\n", |
be2597df | 3278 | SVfARG(vstringify(PL_patchlevel)))); |
8e9464f1 JH |
3279 | PerlIO_printf(PerlIO_stdout(), |
3280 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
3281 | OSNAME, __DATE__, __TIME__)); | |
3282 | PerlIO_printf(PerlIO_stdout(), | |
3283 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 3284 | OSVERS)); |
8e9464f1 JH |
3285 | #endif /* !DGUX */ |
3286 | ||
fb73857a | 3287 | #if defined(LOCAL_PATCH_COUNT) |
3288 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
3289 | PerlIO_printf(PerlIO_stdout(), |
3290 | "\n(with %d registered patch%s, " | |
3291 | "see perl -V for more detail)", | |
bb7a0f54 | 3292 | LOCAL_PATCH_COUNT, |
b0e47665 | 3293 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 | 3294 | #endif |
1a30305b | 3295 | |
b0e47665 | 3296 | PerlIO_printf(PerlIO_stdout(), |
34ce1597 | 3297 | "\n\nCopyright 1987-2007, Larry Wall\n"); |
eae9c151 JH |
3298 | #ifdef MACOS_TRADITIONAL |
3299 | PerlIO_printf(PerlIO_stdout(), | |
be3c0a43 | 3300 | "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" |
03765510 | 3301 | "maintained by Chris Nandor\n"); |
eae9c151 | 3302 | #endif |
79072805 | 3303 | #ifdef MSDOS |
b0e47665 GS |
3304 | PerlIO_printf(PerlIO_stdout(), |
3305 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 3306 | #endif |
3307 | #ifdef DJGPP | |
b0e47665 GS |
3308 | PerlIO_printf(PerlIO_stdout(), |
3309 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
3310 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 3311 | #endif |
79072805 | 3312 | #ifdef OS2 |
b0e47665 GS |
3313 | PerlIO_printf(PerlIO_stdout(), |
3314 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 3315 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 3316 | #endif |
79072805 | 3317 | #ifdef atarist |
b0e47665 GS |
3318 | PerlIO_printf(PerlIO_stdout(), |
3319 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 3320 | #endif |
a3f9223b | 3321 | #ifdef __BEOS__ |
b0e47665 GS |
3322 | PerlIO_printf(PerlIO_stdout(), |
3323 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 3324 | #endif |
1d84e8df | 3325 | #ifdef MPE |
b0e47665 | 3326 | PerlIO_printf(PerlIO_stdout(), |
e583a879 | 3327 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 3328 | #endif |
9d116dd7 | 3329 | #ifdef OEMVS |
b0e47665 GS |
3330 | PerlIO_printf(PerlIO_stdout(), |
3331 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 3332 | #endif |
495c5fdc | 3333 | #ifdef __VOS__ |
b0e47665 | 3334 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 3335 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 3336 | #endif |
092bebab | 3337 | #ifdef __OPEN_VM |
b0e47665 GS |
3338 | PerlIO_printf(PerlIO_stdout(), |
3339 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 3340 | #endif |
a1a0e61e | 3341 | #ifdef POSIX_BC |
b0e47665 GS |
3342 | PerlIO_printf(PerlIO_stdout(), |
3343 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 3344 | #endif |
61ae2fbf | 3345 | #ifdef __MINT__ |
b0e47665 GS |
3346 | PerlIO_printf(PerlIO_stdout(), |
3347 | "MiNT port by Guido Flohr, 1997-1999\n"); | |
61ae2fbf | 3348 | #endif |
f83d2536 | 3349 | #ifdef EPOC |
b0e47665 | 3350 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 3351 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 3352 | #endif |
e1caacb4 | 3353 | #ifdef UNDER_CE |
b475b3e6 JH |
3354 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
3355 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
3356 | wce_hitreturn(); |
3357 | #endif | |
a0fd4948 | 3358 | #ifdef __SYMBIAN32__ |
27da23d5 JH |
3359 | PerlIO_printf(PerlIO_stdout(), |
3360 | "Symbian port by Nokia, 2004-2005\n"); | |
3361 | #endif | |
baed7233 DL |
3362 | #ifdef BINARY_BUILD_NOTICE |
3363 | BINARY_BUILD_NOTICE; | |
3364 | #endif | |
b0e47665 GS |
3365 | PerlIO_printf(PerlIO_stdout(), |
3366 | "\n\ | |
79072805 | 3367 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 3368 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 | 3369 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
a0288114 | 3370 | this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\ |
c9e30dd8 | 3371 | Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n"); |
7ca617d0 | 3372 | my_exit(0); |
79072805 | 3373 | case 'w': |
b2e5e6ba | 3374 | if (! (PL_dowarn & G_WARN_ALL_MASK)) { |
ac27b0f5 | 3375 | PL_dowarn |= G_WARN_ON; |
b2e5e6ba | 3376 | } |
599cee73 PM |
3377 | s++; |
3378 | return s; | |
3379 | case 'W': | |
ac27b0f5 | 3380 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d | 3381 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 3382 | PerlMemShared_free(PL_compiling.cop_warnings); |
d3a7d8c7 | 3383 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
3384 | s++; |
3385 | return s; | |
3386 | case 'X': | |
ac27b0f5 | 3387 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d | 3388 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 3389 | PerlMemShared_free(PL_compiling.cop_warnings); |
d3a7d8c7 | 3390 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
3391 | s++; |
3392 | return s; | |
a0d0e21e | 3393 | case '*': |
79072805 LW |
3394 | case ' ': |
3395 | if (s[1] == '-') /* Additional switches on #! line. */ | |
3396 | return s+2; | |
3397 | break; | |
a0d0e21e | 3398 | case '-': |
79072805 | 3399 | case 0: |
51882d45 | 3400 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
3401 | case '\r': |
3402 | #endif | |
79072805 LW |
3403 | case '\n': |
3404 | case '\t': | |
3405 | break; | |
aa689395 | 3406 | #ifdef ALTERNATE_SHEBANG |
3407 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3408 | break; | |
3409 | #endif | |
a0d0e21e | 3410 | case 'P': |
3280af22 | 3411 | if (PL_preprocess) |
a0d0e21e LW |
3412 | return s+1; |
3413 | /* FALL THROUGH */ | |
79072805 | 3414 | default: |
cea2e8a9 | 3415 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 | 3416 | } |
bd61b366 | 3417 | return NULL; |
79072805 LW |
3418 | } |
3419 | ||
3420 | /* compliments of Tom Christiansen */ | |
3421 | ||
3422 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 3423 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
3424 | |
3425 | void | |
864dbfa3 | 3426 | Perl_my_unexec(pTHX) |
79072805 | 3427 | { |
b37c2d43 | 3428 | PERL_UNUSED_CONTEXT; |
79072805 | 3429 | #ifdef UNEXEC |
b37c2d43 AL |
3430 | SV * prog = newSVpv(BIN_EXP, 0); |
3431 | SV * file = newSVpv(PL_origfilename, 0); | |
ee580363 | 3432 | int status = 1; |
79072805 LW |
3433 | extern int etext; |
3434 | ||
396482e1 | 3435 | sv_catpvs(prog, "/perl"); |
396482e1 | 3436 | sv_catpvs(file, ".perldump"); |
79072805 | 3437 | |
ee580363 GS |
3438 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
3439 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 3440 | PerlProc_exit(status); |
79072805 | 3441 | #else |
a5f75d66 AD |
3442 | # ifdef VMS |
3443 | # include <lib$routines.h> | |
3444 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
84d78eb7 YO |
3445 | # elif defined(WIN32) || defined(__CYGWIN__) |
3446 | Perl_croak(aTHX_ "dump is not supported"); | |
aa689395 | 3447 | # else |
79072805 | 3448 | ABORT(); /* for use with undump */ |
aa689395 | 3449 | # endif |
a5f75d66 | 3450 | #endif |
79072805 LW |
3451 | } |
3452 | ||
cb68f92d GS |
3453 | /* initialize curinterp */ |
3454 | STATIC void | |
cea2e8a9 | 3455 | S_init_interp(pTHX) |
cb68f92d | 3456 | { |
97aff369 | 3457 | dVAR; |
acfe0abc GS |
3458 | #ifdef MULTIPLICITY |
3459 | # define PERLVAR(var,type) | |
3460 | # define PERLVARA(var,n,type) | |
3461 | # if defined(PERL_IMPLICIT_CONTEXT) | |
b7f7fff6 NC |
3462 | # define PERLVARI(var,type,init) aTHX->var = init; |
3463 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
3967c732 | 3464 | # else |
acfe0abc GS |
3465 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
3466 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 3467 | # endif |
acfe0abc | 3468 | # include "intrpvar.h" |
b7f7fff6 | 3469 | # include "thrdvar.h" |
acfe0abc GS |
3470 | # undef PERLVAR |
3471 | # undef PERLVARA | |
3472 | # undef PERLVARI | |
3473 | # undef PERLVARIC | |
3474 | #else | |
3475 | # define PERLVAR(var,type) | |
3476 | # define PERLVARA(var,n,type) | |
3477 | # define PERLVARI(var,type,init) PL_##var = init; | |
3478 | # define PERLVARIC(var,type,init) PL_##var = init; | |
3479 | # include "intrpvar.h" | |
b7f7fff6 | 3480 | # include "thrdvar.h" |
acfe0abc GS |
3481 | # undef PERLVAR |
3482 | # undef PERLVARA | |
3483 | # undef PERLVARI | |
3484 | # undef PERLVARIC | |
cb68f92d GS |
3485 | #endif |
3486 | ||
46ab3289 NC |
3487 | /* As these are inside a structure, PERLVARI isn't capable of initialising |
3488 | them */ | |
6c3f0a89 NC |
3489 | PL_reg_oldcurpm = PL_reg_curpm = NULL; |
3490 | PL_reg_poscache = PL_reg_starttry = NULL; | |
cb68f92d GS |
3491 | } |
3492 | ||
76e3520e | 3493 | STATIC void |
cea2e8a9 | 3494 | S_init_main_stash(pTHX) |
79072805 | 3495 | { |
97aff369 | 3496 | dVAR; |
463ee0b2 | 3497 | GV *gv; |
6e72f9df | 3498 | |
3280af22 | 3499 | PL_curstash = PL_defstash = newHV(); |
23579a14 NC |
3500 | /* We know that the string "main" will be in the global shared string |
3501 | table, so it's a small saving to use it rather than allocate another | |
3502 | 8 bytes. */ | |
18916d0d | 3503 | PL_curstname = newSVpvs_share("main"); |
fafc274c | 3504 | gv = gv_fetchpvs("main::", GV_ADD|GV_NOTQUAL, SVt_PVHV); |
23579a14 NC |
3505 | /* If we hadn't caused another reference to "main" to be in the shared |
3506 | string table above, then it would be worth reordering these two, | |
3507 | because otherwise all we do is delete "main" from it as a consequence | |
3508 | of the SvREFCNT_dec, only to add it again with hv_name_set */ | |
adbc6bb1 | 3509 | SvREFCNT_dec(GvHV(gv)); |
23579a14 | 3510 | hv_name_set(PL_defstash, "main", 4, 0); |
b37c2d43 | 3511 | GvHV(gv) = (HV*)SvREFCNT_inc_simple(PL_defstash); |
463ee0b2 | 3512 | SvREADONLY_on(gv); |
fafc274c NC |
3513 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL, |
3514 | SVt_PVAV))); | |
b37c2d43 | 3515 | SvREFCNT_inc_simple(PL_incgv); /* Don't allow it to be freed */ |
3280af22 | 3516 | GvMULTI_on(PL_incgv); |
fafc274c | 3517 | PL_hintgv = gv_fetchpvs("\010", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^H */ |
3280af22 | 3518 | GvMULTI_on(PL_hintgv); |
fafc274c | 3519 | PL_defgv = gv_fetchpvs("_", GV_ADD|GV_NOTQUAL, SVt_PVAV); |
b37c2d43 | 3520 | SvREFCNT_inc_simple(PL_defgv); |
fafc274c | 3521 | PL_errgv = gv_HVadd(gv_fetchpvs("@", GV_ADD|GV_NOTQUAL, SVt_PV)); |
b37c2d43 | 3522 | SvREFCNT_inc_simple(PL_errgv); |
3280af22 | 3523 | GvMULTI_on(PL_errgv); |
fafc274c | 3524 | PL_replgv = gv_fetchpvs("\022", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^R */ |
3280af22 | 3525 | GvMULTI_on(PL_replgv); |
cea2e8a9 | 3526 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
c69033f2 NC |
3527 | #ifdef PERL_DONT_CREATE_GVSV |
3528 | gv_SVadd(PL_errgv); | |
3529 | #endif | |
38a03e6e MB |
3530 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
3531 | sv_setpvn(ERRSV, "", 0); | |
3280af22 | 3532 | PL_curstash = PL_defstash; |
11faa288 | 3533 | CopSTASH_set(&PL_compiling, PL_defstash); |
5c1737d1 NC |
3534 | PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV)); |
3535 | PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI, | |
3536 | SVt_PVHV)); | |
4633a7c4 | 3537 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 3538 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
3539 | } |
3540 | ||
fdf5d70d | 3541 | STATIC int |
cdd8118e NC |
3542 | S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv, |
3543 | int *suidscript) | |
79072805 | 3544 | { |
ae3f3efd | 3545 | #ifndef IAMSUID |
e1ec3a88 AL |
3546 | const char *quote; |
3547 | const char *code; | |
3548 | const char *cpp_discard_flag; | |
3549 | const char *perl; | |
ae3f3efd | 3550 | #endif |
fdf5d70d | 3551 | int fdscript = -1; |
27da23d5 | 3552 | dVAR; |
1b24ed4b | 3553 | |
cdd8118e | 3554 | *suidscript = -1; |
79072805 | 3555 | |
3280af22 | 3556 | if (PL_e_script) { |
89529cee | 3557 | PL_origfilename = savepvs("-e"); |
96436eeb | 3558 | } |
6c4ab083 GS |
3559 | else { |
3560 | /* if find_script() returns, it returns a malloc()-ed value */ | |
dd374669 | 3561 | scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
3562 | |
3563 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
e1ec3a88 | 3564 | const char *s = scriptname + 8; |
fdf5d70d | 3565 | fdscript = atoi(s); |
6c4ab083 GS |
3566 | while (isDIGIT(*s)) |
3567 | s++; | |
3568 | if (*s) { | |
ae3f3efd PS |
3569 | /* PSz 18 Feb 04 |
3570 | * Tell apart "normal" usage of fdscript, e.g. | |
3571 | * with bash on FreeBSD: | |
3572 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
3573 | * from usage in suidperl. | |
3574 | * Does any "normal" usage leave garbage after the number??? | |
3575 | * Is it a mistake to use a similar /dev/fd/ construct for | |
3576 | * suidperl? | |
3577 | */ | |
cdd8118e | 3578 | *suidscript = 1; |
ae3f3efd PS |
3579 | /* PSz 20 Feb 04 |
3580 | * Be supersafe and do some sanity-checks. | |
3581 | * Still, can we be sure we got the right thing? | |
3582 | */ | |
3583 | if (*s != '/') { | |
3584 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3585 | } | |
3586 | if (! *(s+1)) { | |
3587 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3588 | } | |
6c4ab083 | 3589 | scriptname = savepv(s + 1); |
3280af22 | 3590 | Safefree(PL_origfilename); |
dd374669 | 3591 | PL_origfilename = (char *)scriptname; |
6c4ab083 GS |
3592 | } |
3593 | } | |
3594 | } | |
3595 | ||
05ec9bb3 | 3596 | CopFILE_free(PL_curcop); |
57843af0 | 3597 | CopFILE_set(PL_curcop, PL_origfilename); |
770526c1 | 3598 | if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') |
dd374669 | 3599 | scriptname = (char *)""; |
fdf5d70d NC |
3600 | if (fdscript >= 0) { |
3601 | PL_rsfp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE); | |
1b24ed4b MS |
3602 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3603 | if (PL_rsfp) | |
3604 | /* ensure close-on-exec */ | |
3605 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3606 | # endif | |
96436eeb | 3607 | } |
ae3f3efd PS |
3608 | #ifdef IAMSUID |
3609 | else { | |
86207487 NC |
3610 | Perl_croak(aTHX_ "sperl needs fd script\n" |
3611 | "You should not call sperl directly; do you need to " | |
3612 | "change a #! line\nfrom sperl to perl?\n"); | |
3613 | ||
ae3f3efd PS |
3614 | /* PSz 11 Nov 03 |
3615 | * Do not open (or do other fancy stuff) while setuid. | |
3616 | * Perl does the open, and hands script to suidperl on a fd; | |
3617 | * suidperl only does some checks, sets up UIDs and re-execs | |
3618 | * perl with that fd as it has always done. | |
3619 | */ | |
3620 | } | |
cdd8118e | 3621 | if (*suidscript != 1) { |
ae3f3efd PS |
3622 | Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); |
3623 | } | |
3624 | #else /* IAMSUID */ | |
3280af22 | 3625 | else if (PL_preprocess) { |
c4420975 | 3626 | const char * const cpp_cfg = CPPSTDIN; |
396482e1 | 3627 | SV * const cpp = newSVpvs(""); |
561b68a9 | 3628 | SV * const cmd = newSV(0); |
46fc3d4c | 3629 | |
ae58f265 JH |
3630 | if (cpp_cfg[0] == 0) /* PERL_MICRO? */ |
3631 | Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined"); | |
46fc3d4c | 3632 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 | 3633 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 3634 | sv_catpv(cpp, cpp_cfg); |
79072805 | 3635 | |
1b24ed4b | 3636 | # ifndef VMS |
396482e1 | 3637 | sv_catpvs(sv, "-I"); |
1b24ed4b MS |
3638 | sv_catpv(sv,PRIVLIB_EXP); |
3639 | # endif | |
46fc3d4c | 3640 | |
14953ddc MB |
3641 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3642 | "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n", | |
848ef955 NC |
3643 | scriptname, SvPVX_const (cpp), SvPVX_const (sv), |
3644 | CPPMINUS)); | |
1b24ed4b MS |
3645 | |
3646 | # if defined(MSDOS) || defined(WIN32) || defined(VMS) | |
3647 | quote = "\""; | |
3648 | # else | |
3649 | quote = "'"; | |
3650 | # endif | |
3651 | ||
3652 | # ifdef VMS | |
3653 | cpp_discard_flag = ""; | |
3654 | # else | |
3655 | cpp_discard_flag = "-C"; | |
3656 | # endif | |
3657 | ||
3658 | # ifdef OS2 | |
3659 | perl = os2_execname(aTHX); | |
3660 | # else | |
3661 | perl = PL_origargv[0]; | |
3662 | # endif | |
3663 | ||
3664 | ||
3665 | /* This strips off Perl comments which might interfere with | |
62375a60 NIS |
3666 | the C pre-processor, including #!. #line directives are |
3667 | deliberately stripped to avoid confusion with Perl's version | |
1b24ed4b MS |
3668 | of #line. FWP played some golf with it so it will fit |
3669 | into VMS's 255 character buffer. | |
3670 | */ | |
3671 | if( PL_doextract ) | |
3672 | code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3673 | else | |
3674 | code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3675 | ||
3676 | Perl_sv_setpvf(aTHX_ cmd, "\ | |
3677 | %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s", | |
be2597df MHM |
3678 | perl, quote, code, quote, scriptname, SVfARG(cpp), |
3679 | cpp_discard_flag, SVfARG(sv), CPPMINUS); | |
1b24ed4b | 3680 | |
3280af22 | 3681 | PL_doextract = FALSE; |
0a6c758d | 3682 | |
62375a60 NIS |
3683 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3684 | "PL_preprocess: cmd=\"%s\"\n", | |
848ef955 | 3685 | SvPVX_const(cmd))); |
0a6c758d | 3686 | |
848ef955 | 3687 | PL_rsfp = PerlProc_popen((char *)SvPVX_const(cmd), (char *)"r"); |
46fc3d4c | 3688 | SvREFCNT_dec(cmd); |
3689 | SvREFCNT_dec(cpp); | |
79072805 LW |
3690 | } |
3691 | else if (!*scriptname) { | |
cdd8118e | 3692 | forbid_setid(0, *suidscript); |
3280af22 | 3693 | PL_rsfp = PerlIO_stdin(); |
79072805 | 3694 | } |
96436eeb | 3695 | else { |
3280af22 | 3696 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
1b24ed4b MS |
3697 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3698 | if (PL_rsfp) | |
3699 | /* ensure close-on-exec */ | |
3700 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3701 | # endif | |
96436eeb | 3702 | } |
ae3f3efd | 3703 | #endif /* IAMSUID */ |
3280af22 | 3704 | if (!PL_rsfp) { |
447218f8 | 3705 | /* PSz 16 Sep 03 Keep neat error message */ |
b1681ed3 RGS |
3706 | if (PL_e_script) |
3707 | Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno)); | |
3708 | else | |
3709 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", | |
3710 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3711 | } |
fdf5d70d | 3712 | return fdscript; |
79072805 | 3713 | } |
8d063cd8 | 3714 | |
7b89560d JH |
3715 | /* Mention |
3716 | * I_SYSSTATVFS HAS_FSTATVFS | |
3717 | * I_SYSMOUNT | |
c890dc6c | 3718 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3719 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3720 | * here so that metaconfig picks them up. */ | |
3721 | ||
104d25b7 | 3722 | #ifdef IAMSUID |
864dbfa3 | 3723 | STATIC int |
e688b231 | 3724 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 3725 | { |
ae3f3efd PS |
3726 | /* PSz 27 Feb 04 |
3727 | * We used to do this as "plain" user (after swapping UIDs with setreuid); | |
3728 | * but is needed also on machines without setreuid. | |
3729 | * Seems safe enough to run as root. | |
3730 | */ | |
0545a864 JH |
3731 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
3732 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
ae3f3efd PS |
3733 | /* PSz 12 Nov 03 |
3734 | * Need to check noexec also: nosuid might not be set, the average | |
3735 | * sysadmin would say that nosuid is irrelevant once he sets noexec. | |
3736 | */ | |
3737 | int on_noexec = 0; /* the fd is on a noexec fs */ | |
3738 | ||
104d25b7 | 3739 | /* |
ad27e871 | 3740 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 3741 | * fstatvfs() is UNIX98. |
0545a864 | 3742 | * fstatfs() is 4.3 BSD. |
ad27e871 | 3743 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
3744 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
3745 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
3746 | */ |
3747 | ||
6439433f JH |
3748 | #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ |
3749 | ||
3750 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3751 | defined(HAS_FSTATVFS) | |
3752 | # define FD_ON_NOSUID_CHECK_OKAY | |
104d25b7 | 3753 | struct statvfs stfs; |
6439433f | 3754 | |
104d25b7 JH |
3755 | check_okay = fstatvfs(fd, &stfs) == 0; |
3756 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
ae3f3efd PS |
3757 | #ifdef ST_NOEXEC |
3758 | /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented | |
3759 | on platforms where it is present. */ | |
3760 | on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); | |
3761 | #endif | |
6439433f | 3762 | # endif /* fstatvfs */ |
ac27b0f5 | 3763 | |
6439433f JH |
3764 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ |
3765 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3766 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3767 | defined(HAS_FSTATFS) && \ |
3768 | defined(HAS_STRUCT_STATFS) && \ | |
3769 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
3770 | # define FD_ON_NOSUID_CHECK_OKAY | |
e688b231 | 3771 | struct statfs stfs; |
6439433f | 3772 | |
104d25b7 | 3773 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 3774 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
ae3f3efd | 3775 | on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); |
6439433f JH |
3776 | # endif /* fstatfs */ |
3777 | ||
3778 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3779 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3780 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3781 | defined(HAS_FSTAT) && \ |
3782 | defined(HAS_USTAT) && \ | |
3783 | defined(HAS_GETMNT) && \ | |
3784 | defined(HAS_STRUCT_FS_DATA) && \ | |
3785 | defined(NOSTAT_ONE) | |
3786 | # define FD_ON_NOSUID_CHECK_OKAY | |
c623ac67 | 3787 | Stat_t fdst; |
6439433f | 3788 | |
0545a864 | 3789 | if (fstat(fd, &fdst) == 0) { |
6439433f JH |
3790 | struct ustat us; |
3791 | if (ustat(fdst.st_dev, &us) == 0) { | |
3792 | struct fs_data fsd; | |
3793 | /* NOSTAT_ONE here because we're not examining fields which | |
3794 | * vary between that case and STAT_ONE. */ | |
ad27e871 | 3795 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { |
6439433f JH |
3796 | size_t cmplen = sizeof(us.f_fname); |
3797 | if (sizeof(fsd.fd_req.path) < cmplen) | |
3798 | cmplen = sizeof(fsd.fd_req.path); | |
3799 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
3800 | fdst.st_dev == fsd.fd_req.dev) { | |
6e186fbe MHM |
3801 | check_okay = 1; |
3802 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
3803 | on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; | |
6439433f JH |
3804 | } |
3805 | } | |
3806 | } | |
0545a864 | 3807 | } |
6439433f JH |
3808 | # endif /* fstat+ustat+getmnt */ |
3809 | ||
3810 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3811 | defined(HAS_GETMNTENT) && \ | |
3812 | defined(HAS_HASMNTOPT) && \ | |
ae3f3efd PS |
3813 | defined(MNTOPT_NOSUID) && \ |
3814 | defined(MNTOPT_NOEXEC) | |
6439433f JH |
3815 | # define FD_ON_NOSUID_CHECK_OKAY |
3816 | FILE *mtab = fopen("/etc/mtab", "r"); | |
3817 | struct mntent *entry; | |
c623ac67 | 3818 | Stat_t stb, fsb; |
104d25b7 JH |
3819 | |
3820 | if (mtab && (fstat(fd, &stb) == 0)) { | |
6439433f JH |
3821 | while (entry = getmntent(mtab)) { |
3822 | if (stat(entry->mnt_dir, &fsb) == 0 | |
3823 | && fsb.st_dev == stb.st_dev) | |
3824 | { | |
3825 | /* found the filesystem */ | |
3826 | check_okay = 1; | |
3827 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
3828 | on_nosuid = 1; | |
ae3f3efd PS |
3829 | if (hasmntopt(entry, MNTOPT_NOEXEC)) |
3830 | on_noexec = 1; | |
6439433f JH |
3831 | break; |
3832 | } /* A single fs may well fail its stat(). */ | |
3833 | } | |
104d25b7 JH |
3834 | } |
3835 | if (mtab) | |
6439433f JH |
3836 | fclose(mtab); |
3837 | # endif /* getmntent+hasmntopt */ | |
0545a864 | 3838 | |
ac27b0f5 | 3839 | if (!check_okay) |
ae3f3efd PS |
3840 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); |
3841 | if (on_nosuid) | |
3842 | Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); | |
3843 | if (on_noexec) | |
3844 | Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); | |
3845 | return ((!check_okay) || on_nosuid || on_noexec); | |
104d25b7 JH |
3846 | } |
3847 | #endif /* IAMSUID */ | |
3848 | ||
76e3520e | 3849 | STATIC void |
fdf5d70d | 3850 | S_validate_suid(pTHX_ const char *validarg, const char *scriptname, |
cdd8118e | 3851 | int fdscript, int suidscript) |
79072805 | 3852 | { |
27da23d5 | 3853 | dVAR; |
155aba94 | 3854 | #ifdef IAMSUID |
ae3f3efd PS |
3855 | /* int which; */ |
3856 | #endif /* IAMSUID */ | |
96436eeb | 3857 | |
13281fa4 LW |
3858 | /* do we need to emulate setuid on scripts? */ |
3859 | ||
3860 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
3861 | * in the kernel because of a security problem. Merely defining DOSUID | |
3862 | * in perl will not fix that problem, but if you have disabled setuid | |
3863 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
3864 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
3865 | * root version must be called suidperl or sperlN.NNN. If regular perl |
3866 | * discovers that it has opened a setuid script, it calls suidperl with | |
3867 | * the same argv that it had. If suidperl finds that the script it has | |
3868 | * just opened is NOT setuid root, it sets the effective uid back to the | |
3869 | * uid. We don't just make perl setuid root because that loses the | |
3870 | * effective uid we had before invoking perl, if it was different from the | |
3871 | * uid. | |
ae3f3efd PS |
3872 | * PSz 27 Feb 04 |
3873 | * Description/comments above do not match current workings: | |
3874 | * suidperl must be hardlinked to sperlN.NNN (that is what we exec); | |
3875 | * suidperl called with script open and name changed to /dev/fd/N/X; | |
3876 | * suidperl croaks if script is not setuid; | |
3877 | * making perl setuid would be a huge security risk (and yes, that | |
3878 | * would lose any euid we might have had). | |
13281fa4 LW |
3879 | * |
3880 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
3881 | * be defined in suidperl only. suidperl must be setuid root. The | |
3882 | * Configure script will set this up for you if you want it. | |
3883 | */ | |
a687059c | 3884 | |
13281fa4 | 3885 | #ifdef DOSUID |
dd720ed5 | 3886 | const char *s, *s2; |
a0d0e21e | 3887 | |
b28d0864 | 3888 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 3889 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
ae3f3efd | 3890 | if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 3891 | I32 len; |
dd720ed5 | 3892 | const char *linestr; |
42d9b98d | 3893 | const char *s_end; |
13281fa4 | 3894 | |
a687059c | 3895 | #ifdef IAMSUID |
cdd8118e | 3896 | if (fdscript < 0 || suidscript != 1) |
ae3f3efd PS |
3897 | Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ |
3898 | /* PSz 11 Nov 03 | |
3899 | * Since the script is opened by perl, not suidperl, some of these | |
3900 | * checks are superfluous. Leaving them in probably does not lower | |
3901 | * security(?!). | |
3902 | */ | |
3903 | /* PSz 27 Feb 04 | |
3904 | * Do checks even for systems with no HAS_SETREUID. | |
3905 | * We used to swap, then re-swap UIDs with | |
3906 | #ifdef HAS_SETREUID | |
3907 | if (setreuid(PL_euid,PL_uid) < 0 | |
3908 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) | |
3909 | Perl_croak(aTHX_ "Can't swap uid and euid"); | |
3910 | #endif | |
3911 | #ifdef HAS_SETREUID | |
3912 | if (setreuid(PL_uid,PL_euid) < 0 | |
3913 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) | |
3914 | Perl_croak(aTHX_ "Can't reswap uid and euid"); | |
3915 | #endif | |
3916 | */ | |
3917 | ||
a687059c LW |
3918 | /* On this access check to make sure the directories are readable, |
3919 | * there is actually a small window that the user could use to make | |
3920 | * filename point to an accessible directory. So there is a faint | |
3921 | * chance that someone could execute a setuid script down in a | |
3922 | * non-accessible directory. I don't know what to do about that. | |
3923 | * But I don't think it's too important. The manual lies when | |
3924 | * it says access() is useful in setuid programs. | |
ae3f3efd PS |
3925 | * |
3926 | * So, access() is pretty useless... but not harmful... do anyway. | |
a687059c | 3927 | */ |
e57400b1 | 3928 | if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ |
ae3f3efd | 3929 | Perl_croak(aTHX_ "Can't access() script\n"); |
e57400b1 | 3930 | } |
ae3f3efd | 3931 | |
a687059c LW |
3932 | /* If we can swap euid and uid, then we can determine access rights |
3933 | * with a simple stat of the file, and then compare device and | |
3934 | * inode to make sure we did stat() on the same file we opened. | |
3935 | * Then we just have to make sure he or she can execute it. | |
ae3f3efd PS |
3936 | * |
3937 | * PSz 24 Feb 04 | |
3938 | * As the script is opened by perl, not suidperl, we do not need to | |
3939 | * care much about access rights. | |
3940 | * | |
3941 | * The 'script changed' check is needed, or we can get lied to | |
3942 | * about $0 with e.g. | |
3943 | * suidperl /dev/fd/4//bin/x 4<setuidscript | |
3944 | * Without HAS_SETREUID, is it safe to stat() as root? | |
3945 | * | |
3946 | * Are there any operating systems that pass /dev/fd/xxx for setuid | |
3947 | * scripts, as suggested/described in perlsec(1)? Surely they do not | |
3948 | * pass the script name as we do, so the "script changed" test would | |
3949 | * fail for them... but we never get here with | |
3950 | * SETUID_SCRIPTS_ARE_SECURE_NOW defined. | |
3951 | * | |
3952 | * This is one place where we must "lie" about return status: not | |
3953 | * say if the stat() failed. We are doing this as root, and could | |
3954 | * be tricked into reporting existence or not of files that the | |
3955 | * "plain" user cannot even see. | |
a687059c LW |
3956 | */ |
3957 | { | |
c623ac67 | 3958 | Stat_t tmpstatbuf; |
ae3f3efd PS |
3959 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 || |
3960 | tmpstatbuf.st_dev != PL_statbuf.st_dev || | |
b28d0864 | 3961 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
ae3f3efd | 3962 | Perl_croak(aTHX_ "Setuid script changed\n"); |
a687059c | 3963 | } |
ae3f3efd | 3964 | |
a687059c | 3965 | } |
ae3f3efd PS |
3966 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
3967 | Perl_croak(aTHX_ "Real UID cannot exec script\n"); | |
3968 | ||
3969 | /* PSz 27 Feb 04 | |
3970 | * We used to do this check as the "plain" user (after swapping | |
3971 | * UIDs). But the check for nosuid and noexec filesystem is needed, | |
3972 | * and should be done even without HAS_SETREUID. (Maybe those | |
3973 | * operating systems do not have such mount options anyway...) | |
3974 | * Seems safe enough to do as root. | |
3975 | */ | |
3976 | #if !defined(NO_NOSUID_CHECK) | |
3977 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) { | |
3978 | Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n"); | |
3979 | } | |
3980 | #endif | |
a687059c LW |
3981 | #endif /* IAMSUID */ |
3982 | ||
e57400b1 | 3983 | if (!S_ISREG(PL_statbuf.st_mode)) { |
ae3f3efd | 3984 | Perl_croak(aTHX_ "Setuid script not plain file\n"); |
e57400b1 | 3985 | } |
b28d0864 | 3986 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 3987 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c | 3988 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
ae3f3efd | 3989 | /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */ |
57843af0 | 3990 | CopLINE_inc(PL_curcop); |
bd61b366 | 3991 | if (sv_gets(PL_linestr, PL_rsfp, 0) == NULL) |
f8d2da62 | 3992 | Perl_croak(aTHX_ "No #! line"); |
dd720ed5 | 3993 | linestr = SvPV_nolen_const(PL_linestr); |
f8d2da62 RGS |
3994 | /* required even on Sys V */ |
3995 | if (!*linestr || !linestr[1] || strnNE(linestr,"#!",2)) | |
cea2e8a9 | 3996 | Perl_croak(aTHX_ "No #! line"); |
f8d2da62 | 3997 | linestr += 2; |
dd720ed5 | 3998 | s = linestr; |
ae3f3efd PS |
3999 | /* PSz 27 Feb 04 */ |
4000 | /* Sanity check on line length */ | |
42d9b98d NC |
4001 | s_end = s + strlen(s); |
4002 | if (s_end == s || (s_end - s) > 4000) | |
ae3f3efd PS |
4003 | Perl_croak(aTHX_ "Very long #! line"); |
4004 | /* Allow more than a single space after #! */ | |
4005 | while (isSPACE(*s)) s++; | |
4006 | /* Sanity check on buffer end */ | |
4007 | while ((*s) && !isSPACE(*s)) s++; | |
dd720ed5 | 4008 | for (s2 = s; (s2 > linestr && |
3792a11b NC |
4009 | (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_' |
4010 | || s2[-1] == '-')); s2--) ; | |
ae3f3efd | 4011 | /* Sanity check on buffer start */ |
dd720ed5 NC |
4012 | if ( (s2-4 < linestr || strnNE(s2-4,"perl",4)) && |
4013 | (s-9 < linestr || strnNE(s-9,"perl",4)) ) | |
cea2e8a9 | 4014 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 4015 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
4016 | /* |
4017 | * #! arg must be what we saw above. They can invoke it by | |
4018 | * mentioning suidperl explicitly, but they may not add any strange | |
4019 | * arguments beyond what #! says if they do invoke suidperl that way. | |
4020 | */ | |
ae3f3efd PS |
4021 | /* |
4022 | * The way validarg was set up, we rely on the kernel to start | |
4023 | * scripts with argv[1] set to contain all #! line switches (the | |
4024 | * whole line). | |
4025 | */ | |
4026 | /* | |
4027 | * Check that we got all the arguments listed in the #! line (not | |
4028 | * just that there are no extraneous arguments). Might not matter | |
4029 | * much, as switches from #! line seem to be acted upon (also), and | |
4030 | * so may be checked and trapped in perl. But, security checks must | |
4031 | * be done in suidperl and not deferred to perl. Note that suidperl | |
4032 | * does not get around to parsing (and checking) the switches on | |
4033 | * the #! line (but execs perl sooner). | |
4034 | * Allow (require) a trailing newline (which may be of two | |
4035 | * characters on some architectures?) (but no other trailing | |
4036 | * whitespace). | |
4037 | */ | |
13281fa4 LW |
4038 | len = strlen(validarg); |
4039 | if (strEQ(validarg," PHOOEY ") || | |
ae3f3efd | 4040 | strnNE(s,validarg,len) || !isSPACE(s[len]) || |
42d9b98d NC |
4041 | !((s_end - s) == len+1 |
4042 | || ((s_end - s) == len+2 && isSPACE(s[len+1])))) | |
cea2e8a9 | 4043 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
4044 | |
4045 | #ifndef IAMSUID | |
fdf5d70d | 4046 | if (fdscript < 0 && |
ae3f3efd | 4047 | PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
b28d0864 NIS |
4048 | PL_euid == PL_statbuf.st_uid) |
4049 | if (!PL_do_undump) | |
cea2e8a9 | 4050 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
11fb1898 | 4051 | FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); |
a687059c | 4052 | #endif /* IAMSUID */ |
13281fa4 | 4053 | |
fdf5d70d | 4054 | if (fdscript < 0 && |
ae3f3efd PS |
4055 | PL_euid) { /* oops, we're not the setuid root perl */ |
4056 | /* PSz 18 Feb 04 | |
4057 | * When root runs a setuid script, we do not go through the same | |
4058 | * steps of execing sperl and then perl with fd scripts, but | |
4059 | * simply set up UIDs within the same perl invocation; so do | |
4060 | * not have the same checks (on options, whatever) that we have | |
4061 | * for plain users. No problem really: would have to be a script | |
4062 | * that does not actually work for plain users; and if root is | |
4063 | * foolish and can be persuaded to run such an unsafe script, he | |
4064 | * might run also non-setuid ones, and deserves what he gets. | |
4065 | * | |
4066 | * Or, we might drop the PL_euid check above (and rely just on | |
fdf5d70d | 4067 | * fdscript to avoid loops), and do the execs |
ae3f3efd PS |
4068 | * even for root. |
4069 | */ | |
13281fa4 | 4070 | #ifndef IAMSUID |
ae3f3efd PS |
4071 | int which; |
4072 | /* PSz 11 Nov 03 | |
4073 | * Pass fd script to suidperl. | |
4074 | * Exec suidperl, substituting fd script for scriptname. | |
4075 | * Pass script name as "subdir" of fd, which perl will grok; | |
4076 | * in fact will use that to distinguish this from "normal" | |
4077 | * usage, see comments above. | |
4078 | */ | |
4079 | PerlIO_rewind(PL_rsfp); | |
4080 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
4081 | /* PSz 27 Feb 04 Sanity checks on scriptname */ | |
4082 | if ((!scriptname) || (!*scriptname) ) { | |
4083 | Perl_croak(aTHX_ "No setuid script name\n"); | |
4084 | } | |
4085 | if (*scriptname == '-') { | |
4086 | Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); | |
4087 | /* Or we might confuse it with an option when replacing | |
4088 | * name in argument list, below (though we do pointer, not | |
4089 | * string, comparisons). | |
4090 | */ | |
4091 | } | |
4092 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; | |
4093 | if (!PL_origargv[which]) { | |
4094 | Perl_croak(aTHX_ "Can't change argv to have fd script\n"); | |
4095 | } | |
4096 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
4097 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
4098 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
4099 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
4100 | #endif | |
b35112e7 | 4101 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4102 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4103 | (int)PERL_REVISION, (int)PERL_VERSION, |
4104 | (int)PERL_SUBVERSION), PL_origargv); | |
b35112e7 | 4105 | PERL_FPU_POST_EXEC |
ae3f3efd PS |
4106 | #endif /* IAMSUID */ |
4107 | Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); | |
13281fa4 LW |
4108 | } |
4109 | ||
b28d0864 | 4110 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
ae3f3efd PS |
4111 | /* PSz 26 Feb 04 |
4112 | * This seems back to front: we try HAS_SETEGID first; if not available | |
4113 | * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK | |
4114 | * in the sense that we only want to set EGID; but are there any machines | |
4115 | * with either of the latter, but not the former? Same with UID, later. | |
4116 | */ | |
fe14fcc3 | 4117 | #ifdef HAS_SETEGID |
b28d0864 | 4118 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 4119 | #else |
fe14fcc3 | 4120 | #ifdef HAS_SETREGID |
b28d0864 | 4121 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
4122 | #else |
4123 | #ifdef HAS_SETRESGID | |
b28d0864 | 4124 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 4125 | #else |
b28d0864 | 4126 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
4127 | #endif |
4128 | #endif | |
85e6fe83 | 4129 | #endif |
b28d0864 | 4130 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 4131 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 4132 | } |
b28d0864 NIS |
4133 | if (PL_statbuf.st_mode & S_ISUID) { |
4134 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 4135 | #ifdef HAS_SETEUID |
b28d0864 | 4136 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 4137 | #else |
fe14fcc3 | 4138 | #ifdef HAS_SETREUID |
b28d0864 | 4139 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
4140 | #else |
4141 | #ifdef HAS_SETRESUID | |
b28d0864 | 4142 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 4143 | #else |
b28d0864 | 4144 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
4145 | #endif |
4146 | #endif | |
85e6fe83 | 4147 | #endif |
b28d0864 | 4148 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 4149 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 4150 | } |
b28d0864 | 4151 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 4152 | #ifdef HAS_SETEUID |
b28d0864 | 4153 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 4154 | #else |
fe14fcc3 | 4155 | #ifdef HAS_SETREUID |
b28d0864 | 4156 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 4157 | #else |
85e6fe83 | 4158 | #ifdef HAS_SETRESUID |
b28d0864 | 4159 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 4160 | #else |
b28d0864 | 4161 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 4162 | #endif |
a687059c LW |
4163 | #endif |
4164 | #endif | |
b28d0864 | 4165 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 4166 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 4167 | } |
748a9306 | 4168 | init_ids(); |
b28d0864 | 4169 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
ae3f3efd | 4170 | Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ |
13281fa4 LW |
4171 | } |
4172 | #ifdef IAMSUID | |
ae3f3efd | 4173 | else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
cea2e8a9 | 4174 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
cdd8118e | 4175 | else if (fdscript < 0 || suidscript != 1) |
ae3f3efd PS |
4176 | /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
4177 | Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); | |
e57400b1 | 4178 | else { |
ae3f3efd PS |
4179 | /* PSz 16 Sep 03 Keep neat error message */ |
4180 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); | |
e57400b1 | 4181 | } |
96436eeb | 4182 | |
4183 | /* We absolutely must clear out any saved ids here, so we */ | |
4184 | /* exec the real perl, substituting fd script for scriptname. */ | |
4185 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
ae3f3efd PS |
4186 | /* |
4187 | * It might be thought that using setresgid and/or setresuid (changed to | |
4188 | * set the saved IDs) above might obviate the need to exec, and we could | |
4189 | * go on to "do the perl thing". | |
4190 | * | |
4191 | * Is there such a thing as "saved GID", and is that set for setuid (but | |
4192 | * not setgid) execution like suidperl? Without exec, it would not be | |
4193 | * cleared for setuid (but not setgid) scripts (or might need a dummy | |
4194 | * setresgid). | |
4195 | * | |
4196 | * We need suidperl to do the exact same argument checking that perl | |
4197 | * does. Thus it cannot be very small; while it could be significantly | |
4198 | * smaller, it is safer (simpler?) to make it essentially the same | |
4199 | * binary as perl (but they are not identical). - Maybe could defer that | |
4200 | * check to the invoked perl, and suidperl be a tiny wrapper instead; | |
4201 | * but prefer to do thorough checks in suidperl itself. Such deferral | |
4202 | * would make suidperl security rely on perl, a design no-no. | |
4203 | * | |
4204 | * Setuid things should be short and simple, thus easy to understand and | |
4205 | * verify. They should do their "own thing", without influence by | |
4206 | * attackers. It may help if their internal execution flow is fixed, | |
4207 | * regardless of platform: it may be best to exec anyway. | |
4208 | * | |
4209 | * Suidperl should at least be conceptually simple: a wrapper only, | |
4210 | * never to do any real perl. Maybe we should put | |
4211 | * #ifdef IAMSUID | |
4212 | * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); | |
4213 | * #endif | |
4214 | * into the perly bits. | |
4215 | */ | |
b28d0864 NIS |
4216 | PerlIO_rewind(PL_rsfp); |
4217 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
ae3f3efd PS |
4218 | /* PSz 11 Nov 03 |
4219 | * Keep original arguments: suidperl already has fd script. | |
4220 | */ | |
4221 | /* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */ | |
4222 | /* if (!PL_origargv[which]) { */ | |
4223 | /* errno = EPERM; */ | |
4224 | /* Perl_croak(aTHX_ "Permission denied\n"); */ | |
4225 | /* } */ | |
4226 | /* PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", */ | |
4227 | /* PerlIO_fileno(PL_rsfp), PL_origargv[which])); */ | |
96436eeb | 4228 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 4229 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 4230 | #endif |
b35112e7 | 4231 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4232 | PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4233 | (int)PERL_REVISION, (int)PERL_VERSION, |
4234 | (int)PERL_SUBVERSION), PL_origargv);/* try again */ | |
b35112e7 | 4235 | PERL_FPU_POST_EXEC |
ae3f3efd | 4236 | Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); |
13281fa4 | 4237 | #endif /* IAMSUID */ |
a687059c | 4238 | #else /* !DOSUID */ |
294a48e9 AL |
4239 | PERL_UNUSED_ARG(fdscript); |
4240 | PERL_UNUSED_ARG(suidscript); | |
3280af22 | 4241 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 4242 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
b28d0864 NIS |
4243 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
4244 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 4245 | || |
b28d0864 | 4246 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 4247 | ) |
b28d0864 | 4248 | if (!PL_do_undump) |
cea2e8a9 | 4249 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
4250 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
4251 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
4252 | /* not set-id, must be wrapped */ | |
a687059c | 4253 | } |
13281fa4 | 4254 | #endif /* DOSUID */ |
294a48e9 AL |
4255 | PERL_UNUSED_ARG(validarg); |
4256 | PERL_UNUSED_ARG(scriptname); | |
79072805 | 4257 | } |
13281fa4 | 4258 | |
76e3520e | 4259 | STATIC void |
faef540c | 4260 | S_find_beginning(pTHX) |
79072805 | 4261 | { |
97aff369 | 4262 | dVAR; |
dd374669 AL |
4263 | register char *s; |
4264 | register const char *s2; | |
e55ac0fa HS |
4265 | #ifdef MACOS_TRADITIONAL |
4266 | int maclines = 0; | |
4267 | #endif | |
33b78306 LW |
4268 | |
4269 | /* skip forward in input to the real script? */ | |
4270 | ||
bf4acbe4 | 4271 | #ifdef MACOS_TRADITIONAL |
084592ab | 4272 | /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ |
ac27b0f5 | 4273 | |
bf4acbe4 | 4274 | while (PL_doextract || gMacPerl_AlwaysExtract) { |
bd61b366 | 4275 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
bf4acbe4 GS |
4276 | if (!gMacPerl_AlwaysExtract) |
4277 | Perl_croak(aTHX_ "No Perl script found in input\n"); | |
e55ac0fa | 4278 | |
bf4acbe4 GS |
4279 | if (PL_doextract) /* require explicit override ? */ |
4280 | if (!OverrideExtract(PL_origfilename)) | |
4281 | Perl_croak(aTHX_ "User aborted script\n"); | |
4282 | else | |
4283 | PL_doextract = FALSE; | |
e55ac0fa | 4284 | |
bf4acbe4 GS |
4285 | /* Pater peccavi, file does not have #! */ |
4286 | PerlIO_rewind(PL_rsfp); | |
e55ac0fa | 4287 | |
bf4acbe4 GS |
4288 | break; |
4289 | } | |
4290 | #else | |
3280af22 | 4291 | while (PL_doextract) { |
bd61b366 | 4292 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == NULL) |
cea2e8a9 | 4293 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
bf4acbe4 | 4294 | #endif |
4f0c37ba IZ |
4295 | s2 = s; |
4296 | if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { | |
3280af22 NIS |
4297 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
4298 | PL_doextract = FALSE; | |
6e72f9df | 4299 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
4300 | s2 = s; | |
4301 | while (*s == ' ' || *s == '\t') s++; | |
4302 | if (*s++ == '-') { | |
3792a11b NC |
4303 | while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' |
4304 | || s2[-1] == '_') s2--; | |
6e72f9df | 4305 | if (strnEQ(s2-4,"perl",4)) |
97bd5664 | 4306 | while ((s = moreswitches(s))) |
155aba94 | 4307 | ; |
33b78306 | 4308 | } |
95e8664e | 4309 | #ifdef MACOS_TRADITIONAL |
e55ac0fa HS |
4310 | /* We are always searching for the #!perl line in MacPerl, |
4311 | * so if we find it, still keep the line count correct | |
4312 | * by counting lines we already skipped over | |
4313 | */ | |
4314 | for (; maclines > 0 ; maclines--) | |
4315 | PerlIO_ungetc(PL_rsfp, '\n'); | |
4316 | ||
95e8664e | 4317 | break; |
e55ac0fa HS |
4318 | |
4319 | /* gMacPerl_AlwaysExtract is false in MPW tool */ | |
4320 | } else if (gMacPerl_AlwaysExtract) { | |
4321 | ++maclines; | |
95e8664e | 4322 | #endif |
83025b21 LW |
4323 | } |
4324 | } | |
4325 | } | |
4326 | ||
afe37c7d | 4327 | |
76e3520e | 4328 | STATIC void |
cea2e8a9 | 4329 | S_init_ids(pTHX) |
352d5a3a | 4330 | { |
97aff369 | 4331 | dVAR; |
d8eceb89 JH |
4332 | PL_uid = PerlProc_getuid(); |
4333 | PL_euid = PerlProc_geteuid(); | |
4334 | PL_gid = PerlProc_getgid(); | |
4335 | PL_egid = PerlProc_getegid(); | |
748a9306 | 4336 | #ifdef VMS |
b28d0864 NIS |
4337 | PL_uid |= PL_gid << 16; |
4338 | PL_euid |= PL_egid << 16; | |
748a9306 | 4339 | #endif |
22f7c9c9 JH |
4340 | /* Should not happen: */ |
4341 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 4342 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
ae3f3efd PS |
4343 | /* BUG */ |
4344 | /* PSz 27 Feb 04 | |
4345 | * Should go by suidscript, not uid!=euid: why disallow | |
4346 | * system("ls") in scripts run from setuid things? | |
4347 | * Or, is this run before we check arguments and set suidscript? | |
4348 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
4349 | * (We never have suidscript, can we be sure to have fdscript?) | |
4350 | * Or must then go by UID checks? See comments in forbid_setid also. | |
4351 | */ | |
748a9306 | 4352 | } |
79072805 | 4353 | |
a0643315 JH |
4354 | /* This is used very early in the lifetime of the program, |
4355 | * before even the options are parsed, so PL_tainting has | |
b0891165 | 4356 | * not been initialized properly. */ |
af419de7 | 4357 | bool |
8f42b153 | 4358 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
22f7c9c9 | 4359 | { |
c3446a78 JH |
4360 | #ifndef PERL_IMPLICIT_SYS |
4361 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
4362 | * before we have an interpreter-- and the whole point of this | |
4363 | * function is to be called at such an early stage. If you are on | |
4364 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
4365 | * "tainted because running with altered effective ids', you'll | |
4366 | * have to add your own checks somewhere in here. The two most | |
4367 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
4368 | * of which has much of concept of 'uids'. */ | |
af419de7 | 4369 | int uid = PerlProc_getuid(); |
22f7c9c9 | 4370 | int euid = PerlProc_geteuid(); |
af419de7 | 4371 | int gid = PerlProc_getgid(); |
22f7c9c9 | 4372 | int egid = PerlProc_getegid(); |
6867be6d | 4373 | (void)envp; |
22f7c9c9 JH |
4374 | |
4375 | #ifdef VMS | |
af419de7 | 4376 | uid |= gid << 16; |
22f7c9c9 JH |
4377 | euid |= egid << 16; |
4378 | #endif | |
4379 | if (uid && (euid != uid || egid != gid)) | |
4380 | return 1; | |
c3446a78 | 4381 | #endif /* !PERL_IMPLICIT_SYS */ |
af419de7 JH |
4382 | /* This is a really primitive check; environment gets ignored only |
4383 | * if -T are the first chars together; otherwise one gets | |
4384 | * "Too late" message. */ | |
22f7c9c9 JH |
4385 | if ( argc > 1 && argv[1][0] == '-' |
4386 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
4387 | return 1; | |
4388 | return 0; | |
4389 | } | |
22f7c9c9 | 4390 | |
d0bafe7e NC |
4391 | /* Passing the flag as a single char rather than a string is a slight space |
4392 | optimisation. The only message that isn't /^-.$/ is | |
4393 | "program input from stdin", which is substituted in place of '\0', which | |
4394 | could never be a command line flag. */ | |
76e3520e | 4395 | STATIC void |
cdd8118e | 4396 | S_forbid_setid(pTHX_ const char flag, const int suidscript) |
bbce6d69 | 4397 | { |
97aff369 | 4398 | dVAR; |
d0bafe7e NC |
4399 | char string[3] = "-x"; |
4400 | const char *message = "program input from stdin"; | |
4401 | ||
4402 | if (flag) { | |
4403 | string[1] = flag; | |
4404 | message = string; | |
4405 | } | |
4406 | ||
ae3f3efd | 4407 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 4408 | if (PL_euid != PL_uid) |
d0bafe7e | 4409 | Perl_croak(aTHX_ "No %s allowed while running setuid", message); |
3280af22 | 4410 | if (PL_egid != PL_gid) |
d0bafe7e | 4411 | Perl_croak(aTHX_ "No %s allowed while running setgid", message); |
ae3f3efd PS |
4412 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
4413 | /* PSz 29 Feb 04 | |
4414 | * Checks for UID/GID above "wrong": why disallow | |
4415 | * perl -e 'print "Hello\n"' | |
4416 | * from within setuid things?? Simply drop them: replaced by | |
4417 | * fdscript/suidscript and #ifdef IAMSUID checks below. | |
4418 | * | |
4419 | * This may be too late for command-line switches. Will catch those on | |
4420 | * the #! line, after finding the script name and setting up | |
4421 | * fdscript/suidscript. Note that suidperl does not get around to | |
4422 | * parsing (and checking) the switches on the #! line, but checks that | |
4423 | * the two sets are identical. | |
4424 | * | |
4425 | * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or | |
4426 | * instead, or would that be "too late"? (We never have suidscript, can | |
4427 | * we be sure to have fdscript?) | |
4428 | * | |
4429 | * Catch things with suidscript (in descendant of suidperl), even with | |
4430 | * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, | |
4431 | * below; but I am paranoid. | |
4432 | * | |
4433 | * Also see comments about root running a setuid script, elsewhere. | |
4434 | */ | |
cdd8118e | 4435 | if (suidscript >= 0) |
d0bafe7e | 4436 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", message); |
ae3f3efd PS |
4437 | #ifdef IAMSUID |
4438 | /* PSz 11 Nov 03 Catch it in suidperl, always! */ | |
d0bafe7e | 4439 | Perl_croak(aTHX_ "No %s allowed in suidperl", message); |
ae3f3efd | 4440 | #endif /* IAMSUID */ |
bbce6d69 | 4441 | } |
4442 | ||
1ee4443e IZ |
4443 | void |
4444 | Perl_init_debugger(pTHX) | |
748a9306 | 4445 | { |
97aff369 | 4446 | dVAR; |
c4420975 | 4447 | HV * const ostash = PL_curstash; |
1ee4443e | 4448 | |
3280af22 | 4449 | PL_curstash = PL_debstash; |
5c1737d1 NC |
4450 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args", GV_ADDMULTI, |
4451 | SVt_PVAV)))); | |
3280af22 | 4452 | AvREAL_off(PL_dbargs); |
5c1737d1 NC |
4453 | PL_DBgv = gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV); |
4454 | PL_DBline = gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
4455 | PL_DBsub = gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
4456 | PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV))); | |
ac27b0f5 | 4457 | sv_setiv(PL_DBsingle, 0); |
5c1737d1 | 4458 | PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4459 | sv_setiv(PL_DBtrace, 0); |
5c1737d1 | 4460 | PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4461 | sv_setiv(PL_DBsignal, 0); |
5c1737d1 | 4462 | PL_DBassertion = GvSV((gv_fetchpvs("DB::assertion", GV_ADDMULTI, SVt_PV))); |
06492da6 | 4463 | sv_setiv(PL_DBassertion, 0); |
1ee4443e | 4464 | PL_curstash = ostash; |
352d5a3a LW |
4465 | } |
4466 | ||
2ce36478 SM |
4467 | #ifndef STRESS_REALLOC |
4468 | #define REASONABLE(size) (size) | |
4469 | #else | |
4470 | #define REASONABLE(size) (1) /* unreasonable */ | |
4471 | #endif | |
4472 | ||
11343788 | 4473 | void |
cea2e8a9 | 4474 | Perl_init_stacks(pTHX) |
79072805 | 4475 | { |
97aff369 | 4476 | dVAR; |
e336de0d | 4477 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 4478 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 4479 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
4480 | PL_curstackinfo->si_type = PERLSI_MAIN; |
4481 | PL_curstack = PL_curstackinfo->si_stack; | |
4482 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 4483 | |
3280af22 NIS |
4484 | PL_stack_base = AvARRAY(PL_curstack); |
4485 | PL_stack_sp = PL_stack_base; | |
4486 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 4487 | |
a02a5408 | 4488 | Newx(PL_tmps_stack,REASONABLE(128),SV*); |
3280af22 NIS |
4489 | PL_tmps_floor = -1; |
4490 | PL_tmps_ix = -1; | |
4491 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 4492 | |
a02a5408 | 4493 | Newx(PL_markstack,REASONABLE(32),I32); |
3280af22 NIS |
4494 | PL_markstack_ptr = PL_markstack; |
4495 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 4496 | |
ce2f7c3b | 4497 | SET_MARK_OFFSET; |
e336de0d | 4498 | |
a02a5408 | 4499 | Newx(PL_scopestack,REASONABLE(32),I32); |
3280af22 NIS |
4500 | PL_scopestack_ix = 0; |
4501 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 4502 | |
a02a5408 | 4503 | Newx(PL_savestack,REASONABLE(128),ANY); |
3280af22 NIS |
4504 | PL_savestack_ix = 0; |
4505 | PL_savestack_max = REASONABLE(128); | |
378cc40b | 4506 | } |
33b78306 | 4507 | |
2ce36478 SM |
4508 | #undef REASONABLE |
4509 | ||
76e3520e | 4510 | STATIC void |
cea2e8a9 | 4511 | S_nuke_stacks(pTHX) |
6e72f9df | 4512 | { |
97aff369 | 4513 | dVAR; |
3280af22 NIS |
4514 | while (PL_curstackinfo->si_next) |
4515 | PL_curstackinfo = PL_curstackinfo->si_next; | |
4516 | while (PL_curstackinfo) { | |
4517 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 4518 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
4519 | Safefree(PL_curstackinfo->si_cxstack); |
4520 | Safefree(PL_curstackinfo); | |
4521 | PL_curstackinfo = p; | |
e336de0d | 4522 | } |
3280af22 NIS |
4523 | Safefree(PL_tmps_stack); |
4524 | Safefree(PL_markstack); | |
4525 | Safefree(PL_scopestack); | |
4526 | Safefree(PL_savestack); | |
378cc40b | 4527 | } |
33b78306 | 4528 | |
76e3520e | 4529 | STATIC void |
cea2e8a9 | 4530 | S_init_lexer(pTHX) |
8990e307 | 4531 | { |
97aff369 | 4532 | dVAR; |
06039172 | 4533 | PerlIO *tmpfp; |
3280af22 | 4534 | tmpfp = PL_rsfp; |
4608196e | 4535 | PL_rsfp = NULL; |
3280af22 NIS |
4536 | lex_start(PL_linestr); |
4537 | PL_rsfp = tmpfp; | |
396482e1 | 4538 | PL_subname = newSVpvs("main"); |
8990e307 LW |
4539 | } |
4540 | ||
76e3520e | 4541 | STATIC void |
cea2e8a9 | 4542 | S_init_predump_symbols(pTHX) |
45d8adaa | 4543 | { |
97aff369 | 4544 | dVAR; |
93a17b20 | 4545 | GV *tmpgv; |
af8c498a | 4546 | IO *io; |
79072805 | 4547 | |
864dbfa3 | 4548 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
fafc274c | 4549 | PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3280af22 | 4550 | GvMULTI_on(PL_stdingv); |
af8c498a | 4551 | io = GvIOp(PL_stdingv); |
a04651f4 | 4552 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 4553 | IoIFP(io) = PerlIO_stdin(); |
fafc274c | 4554 | tmpgv = gv_fetchpvs("stdin", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4555 | GvMULTI_on(tmpgv); |
b37c2d43 | 4556 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4557 | |
fafc274c | 4558 | tmpgv = gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
a5f75d66 | 4559 | GvMULTI_on(tmpgv); |
af8c498a | 4560 | io = GvIOp(tmpgv); |
a04651f4 | 4561 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4562 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 4563 | setdefout(tmpgv); |
fafc274c | 4564 | tmpgv = gv_fetchpvs("stdout", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4565 | GvMULTI_on(tmpgv); |
b37c2d43 | 4566 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4567 | |
fafc274c | 4568 | PL_stderrgv = gv_fetchpvs("STDERR", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
bf49b057 GS |
4569 | GvMULTI_on(PL_stderrgv); |
4570 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 4571 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4572 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
fafc274c | 4573 | tmpgv = gv_fetchpvs("stderr", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4574 | GvMULTI_on(tmpgv); |
b37c2d43 | 4575 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4576 | |
561b68a9 | 4577 | PL_statname = newSV(0); /* last filename we did stat on */ |
ab821d7f | 4578 | |
43c5f42d | 4579 | Safefree(PL_osname); |
bf4acbe4 | 4580 | PL_osname = savepv(OSNAME); |
79072805 | 4581 | } |
33b78306 | 4582 | |
a11ec5a9 | 4583 | void |
8f42b153 | 4584 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) |
33b78306 | 4585 | { |
97aff369 | 4586 | dVAR; |
79072805 | 4587 | argc--,argv++; /* skip name of script */ |
3280af22 | 4588 | if (PL_doswitches) { |
79072805 | 4589 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
aec46f14 | 4590 | char *s; |
79072805 LW |
4591 | if (!argv[0][1]) |
4592 | break; | |
379d538a | 4593 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
4594 | argc--,argv++; |
4595 | break; | |
4596 | } | |
155aba94 | 4597 | if ((s = strchr(argv[0], '='))) { |
b3d904f3 NC |
4598 | const char *const start_name = argv[0] + 1; |
4599 | sv_setpv(GvSV(gv_fetchpvn_flags(start_name, s - start_name, | |
4600 | TRUE, SVt_PV)), s + 1); | |
79072805 LW |
4601 | } |
4602 | else | |
71315bf2 | 4603 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1, GV_ADD, SVt_PV)),1); |
fe14fcc3 | 4604 | } |
79072805 | 4605 | } |
fafc274c | 4606 | if ((PL_argvgv = gv_fetchpvs("ARGV", GV_ADD|GV_NOTQUAL, SVt_PVAV))) { |
a11ec5a9 RGS |
4607 | GvMULTI_on(PL_argvgv); |
4608 | (void)gv_AVadd(PL_argvgv); | |
4609 | av_clear(GvAVn(PL_argvgv)); | |
4610 | for (; argc > 0; argc--,argv++) { | |
aec46f14 | 4611 | SV * const sv = newSVpv(argv[0],0); |
a11ec5a9 | 4612 | av_push(GvAVn(PL_argvgv),sv); |
ce81ff12 JH |
4613 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4614 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4615 | SvUTF8_on(sv); | |
4616 | } | |
a05d7ebb JH |
4617 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ |
4618 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4619 | } |
4620 | } | |
4621 | } | |
4622 | ||
4623 | STATIC void | |
4624 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) | |
4625 | { | |
27da23d5 | 4626 | dVAR; |
a11ec5a9 | 4627 | GV* tmpgv; |
a11ec5a9 | 4628 | |
561b68a9 | 4629 | PL_toptarget = newSV(0); |
3280af22 NIS |
4630 | sv_upgrade(PL_toptarget, SVt_PVFM); |
4631 | sv_setpvn(PL_toptarget, "", 0); | |
561b68a9 | 4632 | PL_bodytarget = newSV(0); |
3280af22 NIS |
4633 | sv_upgrade(PL_bodytarget, SVt_PVFM); |
4634 | sv_setpvn(PL_bodytarget, "", 0); | |
4635 | PL_formtarget = PL_bodytarget; | |
79072805 | 4636 | |
bbce6d69 | 4637 | TAINT; |
a11ec5a9 RGS |
4638 | |
4639 | init_argv_symbols(argc,argv); | |
4640 | ||
fafc274c | 4641 | if ((tmpgv = gv_fetchpvs("0", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
bf4acbe4 GS |
4642 | #ifdef MACOS_TRADITIONAL |
4643 | /* $0 is not majick on a Mac */ | |
4644 | sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); | |
4645 | #else | |
3280af22 | 4646 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 | 4647 | magicname("0", "0", 1); |
bf4acbe4 | 4648 | #endif |
79072805 | 4649 | } |
fafc274c | 4650 | if ((PL_envgv = gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV))) { |
79072805 | 4651 | HV *hv; |
e17132c1 | 4652 | bool env_is_not_environ; |
3280af22 NIS |
4653 | GvMULTI_on(PL_envgv); |
4654 | hv = GvHVn(PL_envgv); | |
a0714e2c | 4655 | hv_magic(hv, NULL, PERL_MAGIC_env); |
2f42fcb0 | 4656 | #ifndef PERL_MICRO |
fa6a1c44 | 4657 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4658 | /* Note that if the supplied env parameter is actually a copy |
4659 | of the global environ then it may now point to free'd memory | |
4660 | if the environment has been modified since. To avoid this | |
4661 | problem we treat env==NULL as meaning 'use the default' | |
4662 | */ | |
4663 | if (!env) | |
4664 | env = environ; | |
e17132c1 JD |
4665 | env_is_not_environ = env != environ; |
4666 | if (env_is_not_environ | |
4efc5df6 GS |
4667 | # ifdef USE_ITHREADS |
4668 | && PL_curinterp == aTHX | |
4669 | # endif | |
4670 | ) | |
4671 | { | |
bd61b366 | 4672 | environ[0] = NULL; |
4efc5df6 | 4673 | } |
9b4eeda5 MB |
4674 | if (env) { |
4675 | char** origenv = environ; | |
27da23d5 JH |
4676 | char *s; |
4677 | SV *sv; | |
764df951 | 4678 | for (; *env; env++) { |
9b4eeda5 | 4679 | if (!(s = strchr(*env,'=')) || s == *env) |
79072805 | 4680 | continue; |
7da0e383 | 4681 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4682 | *s = '\0'; |
137443ea | 4683 | (void)strupr(*env); |
61968511 | 4684 | *s = '='; |
137443ea | 4685 | #endif |
61968511 | 4686 | sv = newSVpv(s+1, 0); |
79072805 | 4687 | (void)hv_store(hv, *env, s - *env, sv, 0); |
e17132c1 | 4688 | if (env_is_not_environ) |
61968511 | 4689 | mg_set(sv); |
9b4eeda5 MB |
4690 | if (origenv != environ) { |
4691 | /* realloc has shifted us */ | |
4692 | env = (env - origenv) + environ; | |
4693 | origenv = environ; | |
4694 | } | |
764df951 | 4695 | } |
9b4eeda5 | 4696 | } |
103a7189 | 4697 | #endif /* USE_ENVIRON_ARRAY */ |
2f42fcb0 | 4698 | #endif /* !PERL_MICRO */ |
79072805 | 4699 | } |
bbce6d69 | 4700 | TAINT_NOT; |
fafc274c | 4701 | if ((tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
306196c3 | 4702 | SvREADONLY_off(GvSV(tmpgv)); |
7766f137 | 4703 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4704 | SvREADONLY_on(GvSV(tmpgv)); |
4705 | } | |
4d76a344 RGS |
4706 | #ifdef THREADS_HAVE_PIDS |
4707 | PL_ppid = (IV)getppid(); | |
4708 | #endif | |
2710853f MJD |
4709 | |
4710 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4711 | if (PL_minus_a) { | |
4712 | (void) get_av("main::F", TRUE | GV_ADDMULTI); | |
4713 | } | |
4714 | /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */ | |
4715 | (void) get_av("main::-", TRUE | GV_ADDMULTI); | |
4716 | (void) get_av("main::+", TRUE | GV_ADDMULTI); | |
33b78306 | 4717 | } |
34de22dd | 4718 | |
76e3520e | 4719 | STATIC void |
cea2e8a9 | 4720 | S_init_perllib(pTHX) |
34de22dd | 4721 | { |
97aff369 | 4722 | dVAR; |
85e6fe83 | 4723 | char *s; |
3280af22 | 4724 | if (!PL_tainting) { |
552a7a9b | 4725 | #ifndef VMS |
76e3520e | 4726 | s = PerlEnv_getenv("PERL5LIB"); |
88f5bc07 AB |
4727 | /* |
4728 | * It isn't possible to delete an environment variable with | |
42a3dd3a RGS |
4729 | * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that |
4730 | * case we treat PERL5LIB as undefined if it has a zero-length value. | |
88f5bc07 AB |
4731 | */ |
4732 | #if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV) | |
4733 | if (s && *s != '\0') | |
4734 | #else | |
85e6fe83 | 4735 | if (s) |
88f5bc07 | 4736 | #endif |
88fe16b2 | 4737 | incpush(s, TRUE, TRUE, TRUE, FALSE); |
85e6fe83 | 4738 | else |
88fe16b2 | 4739 | incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, FALSE); |
552a7a9b | 4740 | #else /* VMS */ |
4741 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4742 | * "natural" VMS idiom for a Unix path string. We allow each | |
4743 | * element to be a set of |-separated directories for compatibility. | |
4744 | */ | |
4745 | char buf[256]; | |
4746 | int idx = 0; | |
4747 | if (my_trnlnm("PERL5LIB",buf,0)) | |
88fe16b2 | 4748 | do { incpush(buf,TRUE,TRUE,TRUE,FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 4749 | else |
88fe16b2 | 4750 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE); |
552a7a9b | 4751 | #endif /* VMS */ |
85e6fe83 | 4752 | } |
34de22dd | 4753 | |
c90c0ff4 | 4754 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
65f19062 | 4755 | ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB |
df5cef82 | 4756 | */ |
4633a7c4 | 4757 | #ifdef APPLLIB_EXP |
88fe16b2 | 4758 | incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE); |
16d20bd9 | 4759 | #endif |
4633a7c4 | 4760 | |
fed7345c | 4761 | #ifdef ARCHLIB_EXP |
88fe16b2 | 4762 | incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
a0d0e21e | 4763 | #endif |
bf4acbe4 GS |
4764 | #ifdef MACOS_TRADITIONAL |
4765 | { | |
c623ac67 | 4766 | Stat_t tmpstatbuf; |
561b68a9 | 4767 | SV * privdir = newSV(0); |
bf4acbe4 GS |
4768 | char * macperl = PerlEnv_getenv("MACPERL"); |
4769 | ||
4770 | if (!macperl) | |
4771 | macperl = ""; | |
4772 | ||
4773 | Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); | |
4774 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4775 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
bf4acbe4 GS |
4776 | Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); |
4777 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4778 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
ac27b0f5 | 4779 | |
bf4acbe4 GS |
4780 | SvREFCNT_dec(privdir); |
4781 | } | |
4782 | if (!PL_tainting) | |
88fe16b2 | 4783 | incpush(":", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4784 | #else |
fed7345c | 4785 | #ifndef PRIVLIB_EXP |
65f19062 | 4786 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd | 4787 | #endif |
ac27b0f5 | 4788 | #if defined(WIN32) |
88fe16b2 | 4789 | incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE); |
00dc2f4f | 4790 | #else |
88fe16b2 | 4791 | incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
00dc2f4f | 4792 | #endif |
4633a7c4 | 4793 | |
65f19062 | 4794 | #ifdef SITEARCH_EXP |
3b290362 GS |
4795 | /* sitearch is always relative to sitelib on Windows for |
4796 | * DLL-based path intuition to work correctly */ | |
4797 | # if !defined(WIN32) | |
88fe16b2 | 4798 | incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4799 | # endif |
4800 | #endif | |
4801 | ||
4633a7c4 | 4802 | #ifdef SITELIB_EXP |
65f19062 | 4803 | # if defined(WIN32) |
574c798a | 4804 | /* this picks up sitearch as well */ |
88fe16b2 | 4805 | incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE); |
65f19062 | 4806 | # else |
88fe16b2 | 4807 | incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4808 | # endif |
4809 | #endif | |
189d1e8d | 4810 | |
c95d0e17 GA |
4811 | #if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST) |
4812 | /* Search for version-specific dirs below here */ | |
88fe16b2 | 4813 | incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE); |
81c6dfba | 4814 | #endif |
65f19062 GS |
4815 | |
4816 | #ifdef PERL_VENDORARCH_EXP | |
4ea817c6 | 4817 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4818 | * DLL-based path intuition to work correctly */ |
4819 | # if !defined(WIN32) | |
88fe16b2 | 4820 | incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4821 | # endif |
4b03c463 | 4822 | #endif |
65f19062 GS |
4823 | |
4824 | #ifdef PERL_VENDORLIB_EXP | |
4825 | # if defined(WIN32) | |
88fe16b2 | 4826 | incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE); /* this picks up vendorarch as well */ |
65f19062 | 4827 | # else |
88fe16b2 | 4828 | incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4829 | # endif |
a3635516 | 4830 | #endif |
65f19062 GS |
4831 | |
4832 | #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */ | |
88fe16b2 | 4833 | incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE); |
00dc2f4f | 4834 | #endif |
65f19062 | 4835 | |
3b777bb4 | 4836 | #ifdef PERL_OTHERLIBDIRS |
88fe16b2 | 4837 | incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE); |
3b777bb4 GS |
4838 | #endif |
4839 | ||
3280af22 | 4840 | if (!PL_tainting) |
88fe16b2 | 4841 | incpush(".", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4842 | #endif /* MACOS_TRADITIONAL */ |
774d564b | 4843 | } |
4844 | ||
a0fd4948 | 4845 | #if defined(DOSISH) || defined(EPOC) || defined(__SYMBIAN32__) |
774d564b | 4846 | # define PERLLIB_SEP ';' |
4847 | #else | |
4848 | # if defined(VMS) | |
4849 | # define PERLLIB_SEP '|' | |
4850 | # else | |
bf4acbe4 GS |
4851 | # if defined(MACOS_TRADITIONAL) |
4852 | # define PERLLIB_SEP ',' | |
4853 | # else | |
4854 | # define PERLLIB_SEP ':' | |
4855 | # endif | |
774d564b | 4856 | # endif |
4857 | #endif | |
4858 | #ifndef PERLLIB_MANGLE | |
4859 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4860 | #endif |
774d564b | 4861 | |
ad17a1ae NC |
4862 | /* Push a directory onto @INC if it exists. |
4863 | Generate a new SV if we do this, to save needing to copy the SV we push | |
4864 | onto @INC */ | |
4865 | STATIC SV * | |
4866 | S_incpush_if_exists(pTHX_ SV *dir) | |
4867 | { | |
97aff369 | 4868 | dVAR; |
ad17a1ae | 4869 | Stat_t tmpstatbuf; |
848ef955 | 4870 | if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && |
ad17a1ae NC |
4871 | S_ISDIR(tmpstatbuf.st_mode)) { |
4872 | av_push(GvAVn(PL_incgv), dir); | |
561b68a9 | 4873 | dir = newSV(0); |
ad17a1ae NC |
4874 | } |
4875 | return dir; | |
4876 | } | |
4877 | ||
76e3520e | 4878 | STATIC void |
dd374669 AL |
4879 | S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, |
4880 | bool canrelocate) | |
774d564b | 4881 | { |
97aff369 | 4882 | dVAR; |
a0714e2c | 4883 | SV *subdir = NULL; |
dd374669 | 4884 | const char *p = dir; |
774d564b | 4885 | |
3b290362 | 4886 | if (!p || !*p) |
774d564b | 4887 | return; |
4888 | ||
9c8a64f0 | 4889 | if (addsubdirs || addoldvers) { |
561b68a9 | 4890 | subdir = newSV(0); |
774d564b | 4891 | } |
4892 | ||
4893 | /* Break at all separators */ | |
4894 | while (p && *p) { | |
561b68a9 | 4895 | SV *libdir = newSV(0); |
e1ec3a88 | 4896 | const char *s; |
774d564b | 4897 | |
4898 | /* skip any consecutive separators */ | |
574c798a SR |
4899 | if (usesep) { |
4900 | while ( *p == PERLLIB_SEP ) { | |
4901 | /* Uncomment the next line for PATH semantics */ | |
396482e1 | 4902 | /* av_push(GvAVn(PL_incgv), newSVpvs(".")); */ |
574c798a SR |
4903 | p++; |
4904 | } | |
774d564b | 4905 | } |
4906 | ||
bd61b366 | 4907 | if ( usesep && (s = strchr(p, PERLLIB_SEP)) != NULL ) { |
774d564b | 4908 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
4909 | (STRLEN)(s - p)); | |
4910 | p = s + 1; | |
4911 | } | |
4912 | else { | |
4913 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
bd61b366 | 4914 | p = NULL; /* break out */ |
774d564b | 4915 | } |
bf4acbe4 | 4916 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
4917 | if (!strchr(SvPVX(libdir), ':')) { |
4918 | char buf[256]; | |
4919 | ||
4920 | sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); | |
4921 | } | |
bf4acbe4 | 4922 | if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') |
396482e1 | 4923 | sv_catpvs(libdir, ":"); |
bf4acbe4 | 4924 | #endif |
774d564b | 4925 | |
dd374669 AL |
4926 | /* Do the if() outside the #ifdef to avoid warnings about an unused |
4927 | parameter. */ | |
4928 | if (canrelocate) { | |
88fe16b2 NC |
4929 | #ifdef PERL_RELOCATABLE_INC |
4930 | /* | |
4931 | * Relocatable include entries are marked with a leading .../ | |
4932 | * | |
4933 | * The algorithm is | |
4934 | * 0: Remove that leading ".../" | |
4935 | * 1: Remove trailing executable name (anything after the last '/') | |
4936 | * from the perl path to give a perl prefix | |
4937 | * Then | |
4938 | * While the @INC element starts "../" and the prefix ends with a real | |
4939 | * directory (ie not . or ..) chop that real directory off the prefix | |
4940 | * and the leading "../" from the @INC element. ie a logical "../" | |
4941 | * cleanup | |
4942 | * Finally concatenate the prefix and the remainder of the @INC element | |
4943 | * The intent is that /usr/local/bin/perl and .../../lib/perl5 | |
4944 | * generates /usr/local/lib/perl5 | |
4945 | */ | |
890ce7af | 4946 | const char *libpath = SvPVX(libdir); |
88fe16b2 NC |
4947 | STRLEN libpath_len = SvCUR(libdir); |
4948 | if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { | |
4949 | /* Game on! */ | |
890ce7af | 4950 | SV * const caret_X = get_sv("\030", 0); |
88fe16b2 NC |
4951 | /* Going to use the SV just as a scratch buffer holding a C |
4952 | string: */ | |
4953 | SV *prefix_sv; | |
4954 | char *prefix; | |
4955 | char *lastslash; | |
4956 | ||
4957 | /* $^X is *the* source of taint if tainting is on, hence | |
4958 | SvPOK() won't be true. */ | |
4959 | assert(caret_X); | |
4960 | assert(SvPOKp(caret_X)); | |
4961 | prefix_sv = newSVpvn(SvPVX(caret_X), SvCUR(caret_X)); | |
4962 | /* Firstly take off the leading .../ | |
4963 | If all else fail we'll do the paths relative to the current | |
4964 | directory. */ | |
4965 | sv_chop(libdir, libpath + 4); | |
4966 | /* Don't use SvPV as we're intentionally bypassing taining, | |
4967 | mortal copies that the mg_get of tainting creates, and | |
4968 | corruption that seems to come via the save stack. | |
4969 | I guess that the save stack isn't correctly set up yet. */ | |
4970 | libpath = SvPVX(libdir); | |
4971 | libpath_len = SvCUR(libdir); | |
4972 | ||
4973 | /* This would work more efficiently with memrchr, but as it's | |
4974 | only a GNU extension we'd need to probe for it and | |
4975 | implement our own. Not hard, but maybe not worth it? */ | |
4976 | ||
4977 | prefix = SvPVX(prefix_sv); | |
4978 | lastslash = strrchr(prefix, '/'); | |
4979 | ||
4980 | /* First time in with the *lastslash = '\0' we just wipe off | |
4981 | the trailing /perl from (say) /usr/foo/bin/perl | |
4982 | */ | |
4983 | if (lastslash) { | |
4984 | SV *tempsv; | |
4985 | while ((*lastslash = '\0'), /* Do that, come what may. */ | |
4986 | (libpath_len >= 3 && memEQ(libpath, "../", 3) | |
4987 | && (lastslash = strrchr(prefix, '/')))) { | |
4988 | if (lastslash[1] == '\0' | |
4989 | || (lastslash[1] == '.' | |
4990 | && (lastslash[2] == '/' /* ends "/." */ | |
4991 | || (lastslash[2] == '/' | |
4992 | && lastslash[3] == '/' /* or "/.." */ | |
4993 | )))) { | |
4994 | /* Prefix ends "/" or "/." or "/..", any of which | |
4995 | are fishy, so don't do any more logical cleanup. | |
4996 | */ | |
4997 | break; | |
4998 | } | |
4999 | /* Remove leading "../" from path */ | |
5000 | libpath += 3; | |
5001 | libpath_len -= 3; | |
5002 | /* Next iteration round the loop removes the last | |
5003 | directory name from prefix by writing a '\0' in | |
5004 | the while clause. */ | |
5005 | } | |
5006 | /* prefix has been terminated with a '\0' to the correct | |
5007 | length. libpath points somewhere into the libdir SV. | |
5008 | We need to join the 2 with '/' and drop the result into | |
5009 | libdir. */ | |
5010 | tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); | |
5011 | SvREFCNT_dec(libdir); | |
5012 | /* And this is the new libdir. */ | |
5013 | libdir = tempsv; | |
5014 | if (PL_tainting && | |
5015 | (PL_uid != PL_euid || PL_gid != PL_egid)) { | |
5016 | /* Need to taint reloccated paths if running set ID */ | |
5017 | SvTAINTED_on(libdir); | |
5018 | } | |
5019 | } | |
5020 | SvREFCNT_dec(prefix_sv); | |
5021 | } | |
88fe16b2 | 5022 | #endif |
dd374669 | 5023 | } |
774d564b | 5024 | /* |
5025 | * BEFORE pushing libdir onto @INC we may first push version- and | |
5026 | * archname-specific sub-directories. | |
5027 | */ | |
9c8a64f0 | 5028 | if (addsubdirs || addoldvers) { |
29d82f8d | 5029 | #ifdef PERL_INC_VERSION_LIST |
8353b874 | 5030 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
c4420975 AL |
5031 | const char * const incverlist[] = { PERL_INC_VERSION_LIST }; |
5032 | const char * const *incver; | |
29d82f8d | 5033 | #endif |
aa689395 | 5034 | #ifdef VMS |
5035 | char *unix; | |
5036 | STRLEN len; | |
774d564b | 5037 | |
bd61b366 | 5038 | if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) { |
aa689395 | 5039 | len = strlen(unix); |
5040 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
5041 | sv_usepvn(libdir,unix,len); | |
5042 | } | |
5043 | else | |
bf49b057 | 5044 | PerlIO_printf(Perl_error_log, |
aa689395 | 5045 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 5046 | SvPV(libdir,len)); |
aa689395 | 5047 | #endif |
9c8a64f0 | 5048 | if (addsubdirs) { |
bf4acbe4 GS |
5049 | #ifdef MACOS_TRADITIONAL |
5050 | #define PERL_AV_SUFFIX_FMT "" | |
084592ab CN |
5051 | #define PERL_ARCH_FMT "%s:" |
5052 | #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT | |
bf4acbe4 GS |
5053 | #else |
5054 | #define PERL_AV_SUFFIX_FMT "/" | |
5055 | #define PERL_ARCH_FMT "/%s" | |
084592ab | 5056 | #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT |
bf4acbe4 | 5057 | #endif |
9c8a64f0 | 5058 | /* .../version/archname if -d .../version/archname */ |
084592ab | 5059 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, |
be2597df | 5060 | SVfARG(libdir), |
9c8a64f0 GS |
5061 | (int)PERL_REVISION, (int)PERL_VERSION, |
5062 | (int)PERL_SUBVERSION, ARCHNAME); | |
ad17a1ae | 5063 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4b03c463 | 5064 | |
9c8a64f0 | 5065 | /* .../version if -d .../version */ |
95b63a38 | 5066 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, |
be2597df | 5067 | SVfARG(libdir), |
9c8a64f0 GS |
5068 | (int)PERL_REVISION, (int)PERL_VERSION, |
5069 | (int)PERL_SUBVERSION); | |
ad17a1ae | 5070 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5071 | |
5072 | /* .../archname if -d .../archname */ | |
95b63a38 | 5073 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, |
be2597df | 5074 | SVfARG(libdir), ARCHNAME); |
ad17a1ae NC |
5075 | subdir = S_incpush_if_exists(aTHX_ subdir); |
5076 | ||
29d82f8d | 5077 | } |
9c8a64f0 | 5078 | |
9c8a64f0 | 5079 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 5080 | if (addoldvers) { |
9c8a64f0 GS |
5081 | for (incver = incverlist; *incver; incver++) { |
5082 | /* .../xxx if -d .../xxx */ | |
be2597df MHM |
5083 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, |
5084 | SVfARG(libdir), *incver); | |
ad17a1ae | 5085 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5086 | } |
5087 | } | |
29d82f8d | 5088 | #endif |
774d564b | 5089 | } |
5090 | ||
5091 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 5092 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 5093 | } |
ad17a1ae | 5094 | if (subdir) { |
ef97f5b3 | 5095 | assert (SvREFCNT(subdir) == 1); |
ad17a1ae NC |
5096 | SvREFCNT_dec(subdir); |
5097 | } | |
34de22dd | 5098 | } |
93a17b20 | 5099 | |
199100c8 | 5100 | |
93a17b20 | 5101 | void |
864dbfa3 | 5102 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 5103 | { |
27da23d5 | 5104 | dVAR; |
971a9dd3 | 5105 | SV *atsv; |
dd374669 | 5106 | const line_t oldline = CopLINE(PL_curcop); |
312caa8e | 5107 | CV *cv; |
22921e25 | 5108 | STRLEN len; |
6224f72b | 5109 | int ret; |
db36c5a1 | 5110 | dJMPENV; |
93a17b20 | 5111 | |
e1ec3a88 | 5112 | while (av_len(paramList) >= 0) { |
312caa8e | 5113 | cv = (CV*)av_shift(paramList); |
ece599bd RGS |
5114 | if (PL_savebegin) { |
5115 | if (paramList == PL_beginav) { | |
059a8bb7 | 5116 | /* save PL_beginav for compiler */ |
ece599bd RGS |
5117 | if (! PL_beginav_save) |
5118 | PL_beginav_save = newAV(); | |
5119 | av_push(PL_beginav_save, (SV*)cv); | |
5120 | } | |
5121 | else if (paramList == PL_checkav) { | |
5122 | /* save PL_checkav for compiler */ | |
5123 | if (! PL_checkav_save) | |
5124 | PL_checkav_save = newAV(); | |
5125 | av_push(PL_checkav_save, (SV*)cv); | |
5126 | } | |
3c10abe3 AG |
5127 | else if (paramList == PL_unitcheckav) { |
5128 | /* save PL_unitcheckav for compiler */ | |
5129 | if (! PL_unitcheckav_save) | |
5130 | PL_unitcheckav_save = newAV(); | |
5131 | av_push(PL_unitcheckav_save, (SV*)cv); | |
5132 | } | |
059a8bb7 | 5133 | } else { |
81d86705 NC |
5134 | if (!PL_madskills) |
5135 | SAVEFREESV(cv); | |
059a8bb7 | 5136 | } |
14dd3ad8 | 5137 | JMPENV_PUSH(ret); |
6224f72b | 5138 | switch (ret) { |
312caa8e | 5139 | case 0: |
81d86705 NC |
5140 | #ifdef PERL_MAD |
5141 | if (PL_madskills) | |
5142 | PL_madskills |= 16384; | |
5143 | #endif | |
d6f07c05 | 5144 | CALL_LIST_BODY(cv); |
81d86705 NC |
5145 | #ifdef PERL_MAD |
5146 | if (PL_madskills) | |
5147 | PL_madskills &= ~16384; | |
5148 | #endif | |
971a9dd3 | 5149 | atsv = ERRSV; |
10516c54 | 5150 | (void)SvPV_const(atsv, len); |
81d86705 NC |
5151 | if (PL_madskills && PL_minus_c && paramList == PL_beginav) |
5152 | break; /* not really trying to run, so just wing it */ | |
312caa8e CS |
5153 | if (len) { |
5154 | PL_curcop = &PL_compiling; | |
57843af0 | 5155 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5156 | if (paramList == PL_beginav) |
396482e1 | 5157 | sv_catpvs(atsv, "BEGIN failed--compilation aborted"); |
312caa8e | 5158 | else |
4f25aa18 GS |
5159 | Perl_sv_catpvf(aTHX_ atsv, |
5160 | "%s failed--call queue aborted", | |
7d30b5c4 | 5161 | paramList == PL_checkav ? "CHECK" |
4f25aa18 | 5162 | : paramList == PL_initav ? "INIT" |
3c10abe3 | 5163 | : paramList == PL_unitcheckav ? "UNITCHECK" |
4f25aa18 | 5164 | : "END"); |
312caa8e CS |
5165 | while (PL_scopestack_ix > oldscope) |
5166 | LEAVE; | |
14dd3ad8 | 5167 | JMPENV_POP; |
be2597df | 5168 | Perl_croak(aTHX_ "%"SVf"", SVfARG(atsv)); |
a0d0e21e | 5169 | } |
85e6fe83 | 5170 | break; |
6224f72b | 5171 | case 1: |
f86702cc | 5172 | STATUS_ALL_FAILURE; |
85e6fe83 | 5173 | /* FALL THROUGH */ |
6224f72b | 5174 | case 2: |
85e6fe83 | 5175 | /* my_exit() was called */ |
3280af22 | 5176 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 5177 | LEAVE; |
84902520 | 5178 | FREETMPS; |
3280af22 | 5179 | PL_curstash = PL_defstash; |
3280af22 | 5180 | PL_curcop = &PL_compiling; |
57843af0 | 5181 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 5182 | JMPENV_POP; |
81d86705 NC |
5183 | if (PL_madskills && PL_minus_c && paramList == PL_beginav) |
5184 | return; /* not really trying to run, so just wing it */ | |
cc3604b1 | 5185 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { |
3280af22 | 5186 | if (paramList == PL_beginav) |
cea2e8a9 | 5187 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 5188 | else |
4f25aa18 | 5189 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
7d30b5c4 | 5190 | paramList == PL_checkav ? "CHECK" |
4f25aa18 | 5191 | : paramList == PL_initav ? "INIT" |
3c10abe3 | 5192 | : paramList == PL_unitcheckav ? "UNITCHECK" |
4f25aa18 | 5193 | : "END"); |
85e6fe83 | 5194 | } |
f86702cc | 5195 | my_exit_jump(); |
85e6fe83 | 5196 | /* NOTREACHED */ |
6224f72b | 5197 | case 3: |
312caa8e CS |
5198 | if (PL_restartop) { |
5199 | PL_curcop = &PL_compiling; | |
57843af0 | 5200 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5201 | JMPENV_JUMP(3); |
85e6fe83 | 5202 | } |
bf49b057 | 5203 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
5204 | FREETMPS; |
5205 | break; | |
8990e307 | 5206 | } |
14dd3ad8 | 5207 | JMPENV_POP; |
93a17b20 | 5208 | } |
93a17b20 | 5209 | } |
93a17b20 | 5210 | |
f86702cc | 5211 | void |
864dbfa3 | 5212 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 5213 | { |
97aff369 | 5214 | dVAR; |
8b73bbec | 5215 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
6c9570dc | 5216 | (void*)thr, (unsigned long) status)); |
f86702cc | 5217 | switch (status) { |
5218 | case 0: | |
5219 | STATUS_ALL_SUCCESS; | |
5220 | break; | |
5221 | case 1: | |
5222 | STATUS_ALL_FAILURE; | |
5223 | break; | |
5224 | default: | |
6ac6a52b | 5225 | STATUS_EXIT_SET(status); |
f86702cc | 5226 | break; |
5227 | } | |
5228 | my_exit_jump(); | |
5229 | } | |
5230 | ||
5231 | void | |
864dbfa3 | 5232 | Perl_my_failure_exit(pTHX) |
f86702cc | 5233 | { |
97aff369 | 5234 | dVAR; |
f86702cc | 5235 | #ifdef VMS |
fb38d079 JM |
5236 | /* We have been called to fall on our sword. The desired exit code |
5237 | * should be already set in STATUS_UNIX, but could be shifted over | |
0968cdad JM |
5238 | * by 8 bits. STATUS_UNIX_EXIT_SET will handle the cases where a |
5239 | * that code is set. | |
fb38d079 JM |
5240 | * |
5241 | * If an error code has not been set, then force the issue. | |
5242 | */ | |
0968cdad JM |
5243 | if (MY_POSIX_EXIT) { |
5244 | ||
5245 | /* In POSIX_EXIT mode follow Perl documentations and use 255 for | |
5246 | * the exit code when there isn't an error. | |
5247 | */ | |
5248 | ||
5249 | if (STATUS_UNIX == 0) | |
5250 | STATUS_UNIX_EXIT_SET(255); | |
5251 | else { | |
5252 | STATUS_UNIX_EXIT_SET(STATUS_UNIX); | |
5253 | ||
5254 | /* The exit code could have been set by $? or vmsish which | |
5255 | * means that it may not be fatal. So convert | |
5256 | * success/warning codes to fatal. | |
5257 | */ | |
5258 | if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) | |
5259 | STATUS_UNIX_EXIT_SET(255); | |
5260 | } | |
5261 | } | |
5262 | else { | |
5263 | /* Traditionally Perl on VMS always expects a Fatal Error. */ | |
5264 | if (vaxc$errno & 1) { | |
5265 | ||
5266 | /* So force success status to failure */ | |
5267 | if (STATUS_NATIVE & 1) | |
5268 | STATUS_ALL_FAILURE; | |
5269 | } | |
5270 | else { | |
5271 | if (!vaxc$errno) { | |
5272 | STATUS_UNIX = EINTR; /* In case something cares */ | |
5273 | STATUS_ALL_FAILURE; | |
5274 | } | |
5275 | else { | |
5276 | int severity; | |
5277 | STATUS_NATIVE = vaxc$errno; /* Should already be this */ | |
5278 | ||
5279 | /* Encode the severity code */ | |
5280 | severity = STATUS_NATIVE & STS$M_SEVERITY; | |
5281 | STATUS_UNIX = (severity ? severity : 1) << 8; | |
5282 | ||
5283 | /* Perl expects this to be a fatal error */ | |
5284 | if (severity != STS$K_SEVERE) | |
5285 | STATUS_ALL_FAILURE; | |
5286 | } | |
5287 | } | |
5288 | } | |
fb38d079 | 5289 | |
f86702cc | 5290 | #else |
9b599b2a | 5291 | int exitstatus; |
f86702cc | 5292 | if (errno & 255) |
e5218da5 | 5293 | STATUS_UNIX_SET(errno); |
9b599b2a | 5294 | else { |
e5218da5 | 5295 | exitstatus = STATUS_UNIX >> 8; |
9b599b2a | 5296 | if (exitstatus & 255) |
e5218da5 | 5297 | STATUS_UNIX_SET(exitstatus); |
9b599b2a | 5298 | else |
e5218da5 | 5299 | STATUS_UNIX_SET(255); |
9b599b2a | 5300 | } |
f86702cc | 5301 | #endif |
5302 | my_exit_jump(); | |
93a17b20 LW |
5303 | } |
5304 | ||
76e3520e | 5305 | STATIC void |
cea2e8a9 | 5306 | S_my_exit_jump(pTHX) |
f86702cc | 5307 | { |
27da23d5 | 5308 | dVAR; |
f86702cc | 5309 | |
3280af22 NIS |
5310 | if (PL_e_script) { |
5311 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 5312 | PL_e_script = NULL; |
f86702cc | 5313 | } |
5314 | ||
3280af22 | 5315 | POPSTACK_TO(PL_mainstack); |
f97a0ef2 RH |
5316 | dounwind(-1); |
5317 | LEAVE_SCOPE(0); | |
ff0cee69 | 5318 | |
6224f72b | 5319 | JMPENV_JUMP(2); |
f86702cc | 5320 | } |
873ef191 | 5321 | |
0cb96387 | 5322 | static I32 |
acfe0abc | 5323 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 | 5324 | { |
97aff369 | 5325 | dVAR; |
9d4ba2ae AL |
5326 | const char * const p = SvPVX_const(PL_e_script); |
5327 | const char *nl = strchr(p, '\n'); | |
5328 | ||
5329 | PERL_UNUSED_ARG(idx); | |
5330 | PERL_UNUSED_ARG(maxlen); | |
dd374669 | 5331 | |
3280af22 | 5332 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 5333 | if (nl-p == 0) { |
0cb96387 | 5334 | filter_del(read_e_script); |
873ef191 | 5335 | return 0; |
7dfe3f66 | 5336 | } |
873ef191 | 5337 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 5338 | sv_chop(PL_e_script, nl); |
873ef191 GS |
5339 | return 1; |
5340 | } | |
66610fdd RGS |
5341 | |
5342 | /* | |
5343 | * Local variables: | |
5344 | * c-indentation-style: bsd | |
5345 | * c-basic-offset: 4 | |
5346 | * indent-tabs-mode: t | |
5347 | * End: | |
5348 | * | |
37442d52 RGS |
5349 | * ex: set ts=8 sts=4 sw=4 noet: |
5350 | */ |