Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
3246d7a3 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, by Larry Wall and others |
a687059c | 5 | * |
352d5a3a LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
a687059c | 8 | * |
8d063cd8 LW |
9 | */ |
10 | ||
a0d0e21e LW |
11 | /* |
12 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
13 | */ | |
45d8adaa | 14 | |
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 | |
e6827a76 | 140 | static void |
daa7d858 | 141 | S_init_tls_and_interp(PerlInterpreter *my_perl) |
e6827a76 | 142 | { |
27da23d5 | 143 | dVAR; |
e6827a76 NC |
144 | if (!PL_curinterp) { |
145 | PERL_SET_INTERP(my_perl); | |
3db8f154 | 146 | #if defined(USE_ITHREADS) |
e6827a76 NC |
147 | INIT_THREADS; |
148 | ALLOC_THREAD_KEY; | |
149 | PERL_SET_THX(my_perl); | |
150 | OP_REFCNT_INIT; | |
151 | MUTEX_INIT(&PL_dollarzero_mutex); | |
06d86050 | 152 | # endif |
016af4f1 DM |
153 | #ifdef PERL_IMPLICIT_CONTEXT |
154 | MUTEX_INIT(&PL_my_ctx_mutex); | |
155 | # endif | |
e6827a76 NC |
156 | } |
157 | else { | |
158 | PERL_SET_THX(my_perl); | |
159 | } | |
160 | } | |
06d86050 | 161 | |
32e30700 GS |
162 | #ifdef PERL_IMPLICIT_SYS |
163 | PerlInterpreter * | |
7766f137 GS |
164 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
165 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
166 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
167 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
168 | struct IPerlProc* ipP) | |
169 | { | |
170 | PerlInterpreter *my_perl; | |
9f653bb5 | 171 | /* Newx() needs interpreter, so call malloc() instead */ |
32e30700 | 172 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
e6827a76 | 173 | S_init_tls_and_interp(my_perl); |
32e30700 GS |
174 | Zero(my_perl, 1, PerlInterpreter); |
175 | PL_Mem = ipM; | |
7766f137 GS |
176 | PL_MemShared = ipMS; |
177 | PL_MemParse = ipMP; | |
32e30700 GS |
178 | PL_Env = ipE; |
179 | PL_StdIO = ipStd; | |
180 | PL_LIO = ipLIO; | |
181 | PL_Dir = ipD; | |
182 | PL_Sock = ipS; | |
183 | PL_Proc = ipP; | |
7cb608b5 | 184 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); |
7766f137 | 185 | |
32e30700 GS |
186 | return my_perl; |
187 | } | |
188 | #else | |
954c1994 GS |
189 | |
190 | /* | |
ccfc67b7 JH |
191 | =head1 Embedding Functions |
192 | ||
954c1994 GS |
193 | =for apidoc perl_alloc |
194 | ||
195 | Allocates a new Perl interpreter. See L<perlembed>. | |
196 | ||
197 | =cut | |
198 | */ | |
199 | ||
93a17b20 | 200 | PerlInterpreter * |
cea2e8a9 | 201 | perl_alloc(void) |
79072805 | 202 | { |
cea2e8a9 | 203 | PerlInterpreter *my_perl; |
79072805 | 204 | |
9f653bb5 | 205 | /* Newx() needs interpreter, so call malloc() instead */ |
e8ee3774 | 206 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 207 | |
e6827a76 | 208 | S_init_tls_and_interp(my_perl); |
7cb608b5 | 209 | #ifndef PERL_TRACK_MEMPOOL |
07409e01 | 210 | return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter); |
7cb608b5 NC |
211 | #else |
212 | Zero(my_perl, 1, PerlInterpreter); | |
213 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); | |
214 | return my_perl; | |
215 | #endif | |
79072805 | 216 | } |
32e30700 | 217 | #endif /* PERL_IMPLICIT_SYS */ |
79072805 | 218 | |
954c1994 GS |
219 | /* |
220 | =for apidoc perl_construct | |
221 | ||
222 | Initializes a new Perl interpreter. See L<perlembed>. | |
223 | ||
224 | =cut | |
225 | */ | |
226 | ||
79072805 | 227 | void |
0cb96387 | 228 | perl_construct(pTHXx) |
79072805 | 229 | { |
27da23d5 | 230 | dVAR; |
96a5add6 | 231 | PERL_UNUSED_CONTEXT; |
8990e307 | 232 | #ifdef MULTIPLICITY |
54aff467 | 233 | init_interp(); |
ac27b0f5 | 234 | PL_perl_destruct_level = 1; |
54aff467 GS |
235 | #else |
236 | if (PL_perl_destruct_level > 0) | |
237 | init_interp(); | |
238 | #endif | |
33f46ff6 | 239 | /* Init the real globals (and main thread)? */ |
3280af22 | 240 | if (!PL_linestr) { |
2aea9f8a GS |
241 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
242 | ||
561b68a9 | 243 | PL_linestr = newSV(79); |
3280af22 | 244 | sv_upgrade(PL_linestr,SVt_PVIV); |
79072805 | 245 | |
3280af22 | 246 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
247 | /* set read-only and try to insure than we wont see REFCNT==0 |
248 | very often */ | |
249 | ||
3280af22 NIS |
250 | SvREADONLY_on(&PL_sv_undef); |
251 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 252 | |
3280af22 | 253 | sv_setpv(&PL_sv_no,PL_No); |
0309f36e NC |
254 | /* value lookup in void context - happens to have the side effect |
255 | of caching the numeric forms. */ | |
256 | SvIV(&PL_sv_no); | |
3280af22 NIS |
257 | SvNV(&PL_sv_no); |
258 | SvREADONLY_on(&PL_sv_no); | |
259 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 260 | |
3280af22 | 261 | sv_setpv(&PL_sv_yes,PL_Yes); |
0309f36e | 262 | SvIV(&PL_sv_yes); |
3280af22 NIS |
263 | SvNV(&PL_sv_yes); |
264 | SvREADONLY_on(&PL_sv_yes); | |
265 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
7996736c MHM |
266 | |
267 | SvREADONLY_on(&PL_sv_placeholder); | |
268 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
6e72f9df | 269 | } |
79072805 | 270 | |
8aad04aa | 271 | PL_sighandlerp = (Sighandler_t) Perl_sighandler; |
ca0c25f6 | 272 | #ifdef PERL_USES_PL_PIDSTATUS |
3280af22 | 273 | PL_pidstatus = newHV(); |
ca0c25f6 | 274 | #endif |
79072805 LW |
275 | } |
276 | ||
396482e1 | 277 | PL_rs = newSVpvs("\n"); |
dc92893f | 278 | |
cea2e8a9 | 279 | init_stacks(); |
79072805 | 280 | |
748a9306 | 281 | init_ids(); |
3280af22 | 282 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 283 | |
312caa8e | 284 | JMPENV_BOOTSTRAP; |
f86702cc | 285 | STATUS_ALL_SUCCESS; |
286 | ||
0672f40e | 287 | init_i18nl10n(1); |
36477c24 | 288 | SET_NUMERIC_STANDARD(); |
0b5b802d | 289 | |
ab821d7f | 290 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 291 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 292 | #endif |
293 | ||
52853b95 GS |
294 | #ifdef HAVE_INTERP_INTERN |
295 | sys_intern_init(); | |
296 | #endif | |
297 | ||
3a1ee7e8 | 298 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 299 | |
3280af22 NIS |
300 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
301 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
396482e1 | 302 | PL_errors = newSVpvs(""); |
48c6b404 | 303 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
304 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
305 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
1fcf4c12 | 306 | #ifdef USE_ITHREADS |
13137afc AB |
307 | PL_regex_padav = newAV(); |
308 | av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */ | |
309 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 310 | #endif |
e5dd39fc | 311 | #ifdef USE_REENTRANT_API |
59bd0823 | 312 | Perl_reentrant_init(aTHX); |
e5dd39fc | 313 | #endif |
3d47000e AB |
314 | |
315 | /* Note that strtab is a rather special HV. Assumptions are made | |
316 | about not iterating on it, and not adding tie magic to it. | |
317 | It is properly deallocated in perl_destruct() */ | |
318 | PL_strtab = newHV(); | |
319 | ||
3d47000e AB |
320 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
321 | hv_ksplit(PL_strtab, 512); | |
322 | ||
0631ea03 AB |
323 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
324 | _dyld_lookup_and_bind | |
325 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
326 | #endif /* environ */ | |
327 | ||
2f42fcb0 JH |
328 | #ifndef PERL_MICRO |
329 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 330 | PL_origenviron = environ; |
2f42fcb0 | 331 | # endif |
0631ea03 AB |
332 | #endif |
333 | ||
5311654c | 334 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
dbc1d986 | 335 | * available or if the sysconf() fails, use the HZ. |
27da23d5 JH |
336 | * BeOS has those, but returns the wrong value. |
337 | * The HZ if not originally defined has been by now | |
338 | * been defined as CLK_TCK, if available. */ | |
dbc1d986 | 339 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) |
5311654c JH |
340 | PL_clocktick = sysconf(_SC_CLK_TCK); |
341 | if (PL_clocktick <= 0) | |
342 | #endif | |
343 | PL_clocktick = HZ; | |
344 | ||
081fc587 AB |
345 | PL_stashcache = newHV(); |
346 | ||
e6830b13 NC |
347 | PL_patchlevel = Perl_newSVpvf(aTHX_ "%d.%d.%d", (int)PERL_REVISION, |
348 | (int)PERL_VERSION, (int)PERL_SUBVERSION); | |
d7aa5382 | 349 | |
27da23d5 JH |
350 | #ifdef HAS_MMAP |
351 | if (!PL_mmap_page_size) { | |
352 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) | |
353 | { | |
354 | SETERRNO(0, SS_NORMAL); | |
355 | # ifdef _SC_PAGESIZE | |
356 | PL_mmap_page_size = sysconf(_SC_PAGESIZE); | |
357 | # else | |
358 | PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); | |
359 | # endif | |
360 | if ((long) PL_mmap_page_size < 0) { | |
361 | if (errno) { | |
44f8325f | 362 | SV * const error = ERRSV; |
d4c19fe8 | 363 | SvUPGRADE(error, SVt_PV); |
0510663f | 364 | Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); |
27da23d5 JH |
365 | } |
366 | else | |
367 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); | |
368 | } | |
369 | } | |
370 | #else | |
371 | # ifdef HAS_GETPAGESIZE | |
372 | PL_mmap_page_size = getpagesize(); | |
373 | # else | |
374 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
375 | PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ | |
376 | # endif | |
377 | # endif | |
378 | #endif | |
379 | if (PL_mmap_page_size <= 0) | |
380 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
381 | (IV) PL_mmap_page_size); | |
382 | } | |
383 | #endif /* HAS_MMAP */ | |
384 | ||
385 | #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) | |
386 | PL_timesbase.tms_utime = 0; | |
387 | PL_timesbase.tms_stime = 0; | |
388 | PL_timesbase.tms_cutime = 0; | |
389 | PL_timesbase.tms_cstime = 0; | |
390 | #endif | |
391 | ||
5336380d NC |
392 | #ifdef PERL_MAD |
393 | PL_curforce = -1; | |
394 | #endif | |
395 | ||
8990e307 | 396 | ENTER; |
79072805 LW |
397 | } |
398 | ||
954c1994 | 399 | /* |
62375a60 NIS |
400 | =for apidoc nothreadhook |
401 | ||
402 | Stub that provides thread hook for perl_destruct when there are | |
403 | no threads. | |
404 | ||
405 | =cut | |
406 | */ | |
407 | ||
408 | int | |
4e9e3734 | 409 | Perl_nothreadhook(pTHX) |
62375a60 | 410 | { |
96a5add6 | 411 | PERL_UNUSED_CONTEXT; |
62375a60 NIS |
412 | return 0; |
413 | } | |
414 | ||
41e4abd8 NC |
415 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
416 | void | |
417 | Perl_dump_sv_child(pTHX_ SV *sv) | |
418 | { | |
419 | ssize_t got; | |
bf357333 NC |
420 | const int sock = PL_dumper_fd; |
421 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
bf357333 NC |
422 | union control_un control; |
423 | struct msghdr msg; | |
808ad2d0 | 424 | struct iovec vec[2]; |
bf357333 | 425 | struct cmsghdr *cmptr; |
808ad2d0 NC |
426 | int returned_errno; |
427 | unsigned char buffer[256]; | |
41e4abd8 | 428 | |
bf357333 | 429 | if(sock == -1 || debug_fd == -1) |
41e4abd8 NC |
430 | return; |
431 | ||
432 | PerlIO_flush(Perl_debug_log); | |
433 | ||
bf357333 NC |
434 | /* All these shenanigans are to pass a file descriptor over to our child for |
435 | it to dump out to. We can't let it hold open the file descriptor when it | |
436 | forks, as the file descriptor it will dump to can turn out to be one end | |
437 | of pipe that some other process will wait on for EOF. (So as it would | |
438 | be open, the wait would be forever. */ | |
439 | ||
440 | msg.msg_control = control.control; | |
441 | msg.msg_controllen = sizeof(control.control); | |
442 | /* We're a connected socket so we don't need a destination */ | |
443 | msg.msg_name = NULL; | |
444 | msg.msg_namelen = 0; | |
445 | msg.msg_iov = vec; | |
808ad2d0 | 446 | msg.msg_iovlen = 1; |
bf357333 NC |
447 | |
448 | cmptr = CMSG_FIRSTHDR(&msg); | |
449 | cmptr->cmsg_len = CMSG_LEN(sizeof(int)); | |
450 | cmptr->cmsg_level = SOL_SOCKET; | |
451 | cmptr->cmsg_type = SCM_RIGHTS; | |
452 | *((int *)CMSG_DATA(cmptr)) = 1; | |
453 | ||
454 | vec[0].iov_base = (void*)&sv; | |
455 | vec[0].iov_len = sizeof(sv); | |
456 | got = sendmsg(sock, &msg, 0); | |
41e4abd8 NC |
457 | |
458 | if(got < 0) { | |
bf357333 | 459 | perror("Debug leaking scalars parent sendmsg failed"); |
41e4abd8 NC |
460 | abort(); |
461 | } | |
bf357333 NC |
462 | if(got < sizeof(sv)) { |
463 | perror("Debug leaking scalars parent short sendmsg"); | |
41e4abd8 NC |
464 | abort(); |
465 | } | |
466 | ||
808ad2d0 NC |
467 | /* Return protocol is |
468 | int: errno value | |
469 | unsigned char: length of location string (0 for empty) | |
470 | unsigned char*: string (not terminated) | |
471 | */ | |
472 | vec[0].iov_base = (void*)&returned_errno; | |
473 | vec[0].iov_len = sizeof(returned_errno); | |
474 | vec[1].iov_base = buffer; | |
475 | vec[1].iov_len = 1; | |
476 | ||
477 | got = readv(sock, vec, 2); | |
41e4abd8 NC |
478 | |
479 | if(got < 0) { | |
480 | perror("Debug leaking scalars parent read failed"); | |
808ad2d0 | 481 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
482 | abort(); |
483 | } | |
808ad2d0 | 484 | if(got < sizeof(returned_errno) + 1) { |
41e4abd8 | 485 | perror("Debug leaking scalars parent short read"); |
808ad2d0 | 486 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
487 | abort(); |
488 | } | |
489 | ||
808ad2d0 NC |
490 | if (*buffer) { |
491 | got = read(sock, buffer + 1, *buffer); | |
492 | if(got < 0) { | |
493 | perror("Debug leaking scalars parent read 2 failed"); | |
494 | PerlIO_flush(PerlIO_stderr()); | |
495 | abort(); | |
496 | } | |
497 | ||
498 | if(got < *buffer) { | |
499 | perror("Debug leaking scalars parent short read 2"); | |
500 | PerlIO_flush(PerlIO_stderr()); | |
501 | abort(); | |
502 | } | |
503 | } | |
504 | ||
505 | if (returned_errno || *buffer) { | |
506 | Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" | |
507 | " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, | |
508 | returned_errno, strerror(returned_errno)); | |
41e4abd8 NC |
509 | } |
510 | } | |
511 | #endif | |
512 | ||
62375a60 | 513 | /* |
954c1994 GS |
514 | =for apidoc perl_destruct |
515 | ||
516 | Shuts down a Perl interpreter. See L<perlembed>. | |
517 | ||
518 | =cut | |
519 | */ | |
520 | ||
31d77e54 | 521 | int |
0cb96387 | 522 | perl_destruct(pTHXx) |
79072805 | 523 | { |
27da23d5 | 524 | dVAR; |
7c474504 | 525 | volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
a0d0e21e | 526 | HV *hv; |
2aa47728 | 527 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
2aa47728 NC |
528 | pid_t child; |
529 | #endif | |
8990e307 | 530 | |
96a5add6 | 531 | PERL_UNUSED_CONTEXT; |
9d4ba2ae | 532 | |
7766f137 GS |
533 | /* wait for all pseudo-forked children to finish */ |
534 | PERL_WAIT_FOR_CHILDREN; | |
535 | ||
3280af22 | 536 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
537 | #ifdef DEBUGGING |
538 | { | |
9d4ba2ae AL |
539 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); |
540 | if (s) { | |
e1ec3a88 | 541 | const int i = atoi(s); |
5f05dabc | 542 | if (destruct_level < i) |
543 | destruct_level = i; | |
544 | } | |
4633a7c4 LW |
545 | } |
546 | #endif | |
547 | ||
27da23d5 | 548 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
549 | dJMPENV; |
550 | int x = 0; | |
551 | ||
552 | JMPENV_PUSH(x); | |
1b6737cc | 553 | PERL_UNUSED_VAR(x); |
f3faeb53 AB |
554 | if (PL_endav && !PL_minus_c) |
555 | call_list(PL_scopestack_ix, PL_endav); | |
556 | JMPENV_POP; | |
26f423df | 557 | } |
f3faeb53 | 558 | LEAVE; |
a0d0e21e LW |
559 | FREETMPS; |
560 | ||
e00b64d4 | 561 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 562 | my_fflush_all(); |
e00b64d4 | 563 | |
62375a60 NIS |
564 | if (CALL_FPTR(PL_threadhook)(aTHX)) { |
565 | /* Threads hook has vetoed further cleanup */ | |
37038d91 | 566 | return STATUS_EXIT; |
62375a60 NIS |
567 | } |
568 | ||
2aa47728 NC |
569 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
570 | if (destruct_level != 0) { | |
571 | /* Fork here to create a child. Our child's job is to preserve the | |
572 | state of scalars prior to destruction, so that we can instruct it | |
573 | to dump any scalars that we later find have leaked. | |
574 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
575 | fail gracefully */ | |
576 | int fd[2]; | |
577 | ||
578 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
579 | perror("Debug leaking scalars socketpair failed"); | |
580 | abort(); | |
581 | } | |
582 | ||
583 | child = fork(); | |
584 | if(child == -1) { | |
585 | perror("Debug leaking scalars fork failed"); | |
586 | abort(); | |
587 | } | |
588 | if (!child) { | |
589 | /* We are the child */ | |
3125a5a4 NC |
590 | const int sock = fd[1]; |
591 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
592 | int f; | |
808ad2d0 NC |
593 | const char *where; |
594 | /* Our success message is an integer 0, and a char 0 */ | |
595 | static const char success[sizeof(int) + 1]; | |
3125a5a4 | 596 | |
2aa47728 | 597 | close(fd[0]); |
2aa47728 | 598 | |
3125a5a4 NC |
599 | /* We need to close all other file descriptors otherwise we end up |
600 | with interesting hangs, where the parent closes its end of a | |
601 | pipe, and sits waiting for (another) child to terminate. Only | |
602 | that child never terminates, because it never gets EOF, because | |
bf357333 NC |
603 | we also have the far end of the pipe open. We even need to |
604 | close the debugging fd, because sometimes it happens to be one | |
605 | end of a pipe, and a process is waiting on the other end for | |
606 | EOF. Normally it would be closed at some point earlier in | |
607 | destruction, but if we happen to cause the pipe to remain open, | |
608 | EOF never occurs, and we get an infinite hang. Hence all the | |
609 | games to pass in a file descriptor if it's actually needed. */ | |
3125a5a4 NC |
610 | |
611 | f = sysconf(_SC_OPEN_MAX); | |
612 | if(f < 0) { | |
808ad2d0 NC |
613 | where = "sysconf failed"; |
614 | goto abort; | |
3125a5a4 NC |
615 | } |
616 | while (f--) { | |
617 | if (f == sock) | |
618 | continue; | |
3125a5a4 NC |
619 | close(f); |
620 | } | |
621 | ||
2aa47728 NC |
622 | while (1) { |
623 | SV *target; | |
bf357333 NC |
624 | union control_un control; |
625 | struct msghdr msg; | |
626 | struct iovec vec[1]; | |
627 | struct cmsghdr *cmptr; | |
628 | ssize_t got; | |
629 | int got_fd; | |
630 | ||
631 | msg.msg_control = control.control; | |
632 | msg.msg_controllen = sizeof(control.control); | |
633 | /* We're a connected socket so we don't need a source */ | |
634 | msg.msg_name = NULL; | |
635 | msg.msg_namelen = 0; | |
636 | msg.msg_iov = vec; | |
637 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
638 | ||
639 | vec[0].iov_base = (void*)⌖ | |
640 | vec[0].iov_len = sizeof(target); | |
641 | ||
642 | got = recvmsg(sock, &msg, 0); | |
2aa47728 NC |
643 | |
644 | if(got == 0) | |
645 | break; | |
646 | if(got < 0) { | |
808ad2d0 NC |
647 | where = "recv failed"; |
648 | goto abort; | |
2aa47728 NC |
649 | } |
650 | if(got < sizeof(target)) { | |
808ad2d0 NC |
651 | where = "short recv"; |
652 | goto abort; | |
2aa47728 | 653 | } |
bf357333 | 654 | |
808ad2d0 NC |
655 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { |
656 | where = "no cmsg"; | |
657 | goto abort; | |
658 | } | |
659 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
660 | where = "wrong cmsg_len"; | |
661 | goto abort; | |
662 | } | |
663 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
664 | where = "wrong cmsg_level"; | |
665 | goto abort; | |
666 | } | |
667 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
668 | where = "wrong cmsg_type"; | |
669 | goto abort; | |
670 | } | |
bf357333 NC |
671 | |
672 | got_fd = *(int*)CMSG_DATA(cmptr); | |
673 | /* For our last little bit of trickery, put the file descriptor | |
674 | back into Perl_debug_log, as if we never actually closed it | |
675 | */ | |
808ad2d0 NC |
676 | if(got_fd != debug_fd) { |
677 | if (dup2(got_fd, debug_fd) == -1) { | |
678 | where = "dup2"; | |
679 | goto abort; | |
680 | } | |
681 | } | |
2aa47728 | 682 | sv_dump(target); |
bf357333 | 683 | |
2aa47728 NC |
684 | PerlIO_flush(Perl_debug_log); |
685 | ||
808ad2d0 | 686 | got = write(sock, &success, sizeof(success)); |
2aa47728 NC |
687 | |
688 | if(got < 0) { | |
808ad2d0 NC |
689 | where = "write failed"; |
690 | goto abort; | |
2aa47728 | 691 | } |
808ad2d0 NC |
692 | if(got < sizeof(success)) { |
693 | where = "short write"; | |
694 | goto abort; | |
2aa47728 NC |
695 | } |
696 | } | |
697 | _exit(0); | |
808ad2d0 NC |
698 | abort: |
699 | { | |
700 | int send_errno = errno; | |
701 | unsigned char length = (unsigned char) strlen(where); | |
702 | struct iovec failure[3] = { | |
703 | {(void*)&send_errno, sizeof(send_errno)}, | |
704 | {&length, 1}, | |
705 | {(void*)where, length} | |
706 | }; | |
707 | int got = writev(sock, failure, 3); | |
708 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
709 | in the parent if we try to read from the socketpair after the | |
710 | child has exited, even if there was data to read. | |
711 | So sleep a bit to give the parent a fighting chance of | |
712 | reading the data. */ | |
713 | sleep(2); | |
714 | _exit((got == -1) ? errno : 0); | |
715 | } | |
bf357333 | 716 | /* End of child. */ |
2aa47728 | 717 | } |
41e4abd8 | 718 | PL_dumper_fd = fd[0]; |
2aa47728 NC |
719 | close(fd[1]); |
720 | } | |
721 | #endif | |
722 | ||
ff0cee69 | 723 | /* We must account for everything. */ |
724 | ||
725 | /* Destroy the main CV and syntax tree */ | |
17fbfdf6 NC |
726 | /* Do this now, because destroying ops can cause new SVs to be generated |
727 | in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they | |
728 | PL_curcop to point to a valid op from which the filename structure | |
729 | member is copied. */ | |
730 | PL_curcop = &PL_compiling; | |
3280af22 | 731 | if (PL_main_root) { |
4e380990 DM |
732 | /* ensure comppad/curpad to refer to main's pad */ |
733 | if (CvPADLIST(PL_main_cv)) { | |
734 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
735 | } | |
3280af22 | 736 | op_free(PL_main_root); |
5f66b61c | 737 | PL_main_root = NULL; |
a0d0e21e | 738 | } |
5f66b61c | 739 | PL_main_start = NULL; |
3280af22 | 740 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 741 | PL_main_cv = NULL; |
24d3c518 | 742 | PL_dirty = TRUE; |
ff0cee69 | 743 | |
13621cfb NIS |
744 | /* Tell PerlIO we are about to tear things apart in case |
745 | we have layers which are using resources that should | |
746 | be cleaned up now. | |
747 | */ | |
748 | ||
749 | PerlIO_destruct(aTHX); | |
750 | ||
3280af22 | 751 | if (PL_sv_objcount) { |
a0d0e21e LW |
752 | /* |
753 | * Try to destruct global references. We do this first so that the | |
754 | * destructors and destructees still exist. Some sv's might remain. | |
755 | * Non-referenced objects are on their own. | |
756 | */ | |
a0d0e21e | 757 | sv_clean_objs(); |
bf9cdc68 | 758 | PL_sv_objcount = 0; |
a0de6cf5 | 759 | if (PL_defoutgv && !SvREFCNT(PL_defoutgv)) |
a0714e2c | 760 | PL_defoutgv = NULL; /* may have been freed */ |
8990e307 LW |
761 | } |
762 | ||
5cd24f17 | 763 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 | 764 | SvREFCNT_dec(PL_warnhook); |
a0714e2c | 765 | PL_warnhook = NULL; |
3280af22 | 766 | SvREFCNT_dec(PL_diehook); |
a0714e2c | 767 | PL_diehook = NULL; |
5cd24f17 | 768 | |
4b556e6c | 769 | /* call exit list functions */ |
3280af22 | 770 | while (PL_exitlistlen-- > 0) |
acfe0abc | 771 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 772 | |
3280af22 | 773 | Safefree(PL_exitlist); |
4b556e6c | 774 | |
1c4916e5 CB |
775 | PL_exitlist = NULL; |
776 | PL_exitlistlen = 0; | |
777 | ||
a0d0e21e | 778 | if (destruct_level == 0){ |
8990e307 | 779 | |
a0d0e21e | 780 | DEBUG_P(debprofdump()); |
ac27b0f5 | 781 | |
56a2bab7 NIS |
782 | #if defined(PERLIO_LAYERS) |
783 | /* No more IO - including error messages ! */ | |
784 | PerlIO_cleanup(aTHX); | |
785 | #endif | |
786 | ||
a0d0e21e | 787 | /* The exit() function will do everything that needs doing. */ |
37038d91 | 788 | return STATUS_EXIT; |
a0d0e21e | 789 | } |
5dd60ef7 | 790 | |
551a8b83 | 791 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
792 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
793 | * so we certainly shouldn't free it here | |
794 | */ | |
2f42fcb0 | 795 | #ifndef PERL_MICRO |
4b647fb0 | 796 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
50acdf95 | 797 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
798 | #ifdef USE_ITHREADS |
799 | /* only main thread can free environ[0] contents */ | |
800 | && PL_curinterp == aTHX | |
801 | #endif | |
802 | ) | |
803 | { | |
551a8b83 JH |
804 | I32 i; |
805 | ||
806 | for (i = 0; environ[i]; i++) | |
4b420006 | 807 | safesysfree(environ[i]); |
0631ea03 | 808 | |
4b420006 JH |
809 | /* Must use safesysfree() when working with environ. */ |
810 | safesysfree(environ); | |
551a8b83 JH |
811 | |
812 | environ = PL_origenviron; | |
813 | } | |
814 | #endif | |
2f42fcb0 | 815 | #endif /* !PERL_MICRO */ |
551a8b83 | 816 | |
804ffa60 | 817 | /* reset so print() ends up where we expect */ |
a0714e2c | 818 | setdefout(NULL); |
804ffa60 | 819 | |
5f8cb046 DM |
820 | #ifdef USE_ITHREADS |
821 | /* the syntax tree is shared between clones | |
822 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
823 | * REGEXPs in the parent interpreter | |
824 | * we need to manually ReREFCNT_dec for the clones | |
825 | */ | |
826 | { | |
827 | I32 i = AvFILLp(PL_regex_padav) + 1; | |
c4420975 | 828 | SV * const * const ary = AvARRAY(PL_regex_padav); |
5f8cb046 DM |
829 | |
830 | while (i) { | |
c4420975 | 831 | SV * const resv = ary[--i]; |
35061a7e DM |
832 | |
833 | if (SvFLAGS(resv) & SVf_BREAK) { | |
577e12cc | 834 | /* this is PL_reg_curpm, already freed |
35061a7e DM |
835 | * flag is set in regexec.c:S_regtry |
836 | */ | |
837 | SvFLAGS(resv) &= ~SVf_BREAK; | |
3a1ee7e8 | 838 | } |
1cc8b4c5 AB |
839 | else if(SvREPADTMP(resv)) { |
840 | SvREPADTMP_off(resv); | |
841 | } | |
a560f29b NC |
842 | else if(SvIOKp(resv)) { |
843 | REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv)); | |
5f8cb046 DM |
844 | ReREFCNT_dec(re); |
845 | } | |
846 | } | |
847 | } | |
848 | SvREFCNT_dec(PL_regex_padav); | |
7d49f689 | 849 | PL_regex_padav = NULL; |
5f8cb046 DM |
850 | PL_regex_pad = NULL; |
851 | #endif | |
852 | ||
081fc587 AB |
853 | SvREFCNT_dec((SV*) PL_stashcache); |
854 | PL_stashcache = NULL; | |
855 | ||
5f05dabc | 856 | /* loosen bonds of global variables */ |
857 | ||
3280af22 NIS |
858 | if(PL_rsfp) { |
859 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 860 | PL_rsfp = NULL; |
8ebc5c01 | 861 | } |
862 | ||
863 | /* Filters for program text */ | |
3280af22 | 864 | SvREFCNT_dec(PL_rsfp_filters); |
7d49f689 | 865 | PL_rsfp_filters = NULL; |
8ebc5c01 | 866 | |
867 | /* switches */ | |
3280af22 NIS |
868 | PL_preprocess = FALSE; |
869 | PL_minus_n = FALSE; | |
870 | PL_minus_p = FALSE; | |
871 | PL_minus_l = FALSE; | |
872 | PL_minus_a = FALSE; | |
873 | PL_minus_F = FALSE; | |
874 | PL_doswitches = FALSE; | |
599cee73 | 875 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
876 | PL_doextract = FALSE; |
877 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
878 | PL_unsafe = FALSE; |
879 | ||
880 | Safefree(PL_inplace); | |
bd61b366 | 881 | PL_inplace = NULL; |
a7cb1f99 | 882 | SvREFCNT_dec(PL_patchlevel); |
3280af22 NIS |
883 | |
884 | if (PL_e_script) { | |
885 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 886 | PL_e_script = NULL; |
8ebc5c01 | 887 | } |
888 | ||
bf9cdc68 RG |
889 | PL_perldb = 0; |
890 | ||
8ebc5c01 | 891 | /* magical thingies */ |
892 | ||
7889fe52 | 893 | SvREFCNT_dec(PL_ofs_sv); /* $, */ |
a0714e2c | 894 | PL_ofs_sv = NULL; |
5f05dabc | 895 | |
7889fe52 | 896 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
a0714e2c | 897 | PL_ors_sv = NULL; |
8ebc5c01 | 898 | |
3280af22 | 899 | SvREFCNT_dec(PL_rs); /* $/ */ |
a0714e2c | 900 | PL_rs = NULL; |
dc92893f | 901 | |
d33b2eba | 902 | Safefree(PL_osname); /* $^O */ |
bd61b366 | 903 | PL_osname = NULL; |
5f05dabc | 904 | |
3280af22 | 905 | SvREFCNT_dec(PL_statname); |
a0714e2c SS |
906 | PL_statname = NULL; |
907 | PL_statgv = NULL; | |
5f05dabc | 908 | |
8ebc5c01 | 909 | /* defgv, aka *_ should be taken care of elsewhere */ |
910 | ||
8ebc5c01 | 911 | /* clean up after study() */ |
3280af22 | 912 | SvREFCNT_dec(PL_lastscream); |
a0714e2c | 913 | PL_lastscream = NULL; |
3280af22 NIS |
914 | Safefree(PL_screamfirst); |
915 | PL_screamfirst = 0; | |
916 | Safefree(PL_screamnext); | |
917 | PL_screamnext = 0; | |
8ebc5c01 | 918 | |
7d5ea4e7 GS |
919 | /* float buffer */ |
920 | Safefree(PL_efloatbuf); | |
bd61b366 | 921 | PL_efloatbuf = NULL; |
7d5ea4e7 GS |
922 | PL_efloatsize = 0; |
923 | ||
8ebc5c01 | 924 | /* startup and shutdown function lists */ |
3280af22 | 925 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 926 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 927 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 928 | SvREFCNT_dec(PL_checkav); |
ece599bd | 929 | SvREFCNT_dec(PL_checkav_save); |
3280af22 | 930 | SvREFCNT_dec(PL_initav); |
7d49f689 NC |
931 | PL_beginav = NULL; |
932 | PL_beginav_save = NULL; | |
933 | PL_endav = NULL; | |
934 | PL_checkav = NULL; | |
935 | PL_checkav_save = NULL; | |
936 | PL_initav = NULL; | |
5618dfe8 | 937 | |
8ebc5c01 | 938 | /* shortcuts just get cleared */ |
a0714e2c SS |
939 | PL_envgv = NULL; |
940 | PL_incgv = NULL; | |
941 | PL_hintgv = NULL; | |
942 | PL_errgv = NULL; | |
943 | PL_argvgv = NULL; | |
944 | PL_argvoutgv = NULL; | |
945 | PL_stdingv = NULL; | |
946 | PL_stderrgv = NULL; | |
947 | PL_last_in_gv = NULL; | |
948 | PL_replgv = NULL; | |
949 | PL_DBgv = NULL; | |
950 | PL_DBline = NULL; | |
951 | PL_DBsub = NULL; | |
952 | PL_DBsingle = NULL; | |
953 | PL_DBtrace = NULL; | |
954 | PL_DBsignal = NULL; | |
955 | PL_DBassertion = NULL; | |
601f1833 | 956 | PL_DBcv = NULL; |
7d49f689 | 957 | PL_dbargs = NULL; |
5c284bb0 | 958 | PL_debstash = NULL; |
8ebc5c01 | 959 | |
7a1c5554 | 960 | SvREFCNT_dec(PL_argvout_stack); |
7d49f689 | 961 | PL_argvout_stack = NULL; |
8ebc5c01 | 962 | |
5c831c24 | 963 | SvREFCNT_dec(PL_modglobal); |
5c284bb0 | 964 | PL_modglobal = NULL; |
5c831c24 | 965 | SvREFCNT_dec(PL_preambleav); |
7d49f689 | 966 | PL_preambleav = NULL; |
5c831c24 | 967 | SvREFCNT_dec(PL_subname); |
a0714e2c | 968 | PL_subname = NULL; |
5c831c24 | 969 | SvREFCNT_dec(PL_linestr); |
a0714e2c | 970 | PL_linestr = NULL; |
ca0c25f6 | 971 | #ifdef PERL_USES_PL_PIDSTATUS |
5c831c24 | 972 | SvREFCNT_dec(PL_pidstatus); |
5c284bb0 | 973 | PL_pidstatus = NULL; |
ca0c25f6 | 974 | #endif |
5c831c24 | 975 | SvREFCNT_dec(PL_toptarget); |
a0714e2c | 976 | PL_toptarget = NULL; |
5c831c24 | 977 | SvREFCNT_dec(PL_bodytarget); |
a0714e2c SS |
978 | PL_bodytarget = NULL; |
979 | PL_formtarget = NULL; | |
5c831c24 | 980 | |
d33b2eba | 981 | /* free locale stuff */ |
b9582b6a | 982 | #ifdef USE_LOCALE_COLLATE |
d33b2eba | 983 | Safefree(PL_collation_name); |
bd61b366 | 984 | PL_collation_name = NULL; |
b9582b6a | 985 | #endif |
d33b2eba | 986 | |
b9582b6a | 987 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba | 988 | Safefree(PL_numeric_name); |
bd61b366 | 989 | PL_numeric_name = NULL; |
a453c169 | 990 | SvREFCNT_dec(PL_numeric_radix_sv); |
a0714e2c | 991 | PL_numeric_radix_sv = NULL; |
b9582b6a | 992 | #endif |
d33b2eba | 993 | |
5c831c24 GS |
994 | /* clear utf8 character classes */ |
995 | SvREFCNT_dec(PL_utf8_alnum); | |
996 | SvREFCNT_dec(PL_utf8_alnumc); | |
997 | SvREFCNT_dec(PL_utf8_ascii); | |
998 | SvREFCNT_dec(PL_utf8_alpha); | |
999 | SvREFCNT_dec(PL_utf8_space); | |
1000 | SvREFCNT_dec(PL_utf8_cntrl); | |
1001 | SvREFCNT_dec(PL_utf8_graph); | |
1002 | SvREFCNT_dec(PL_utf8_digit); | |
1003 | SvREFCNT_dec(PL_utf8_upper); | |
1004 | SvREFCNT_dec(PL_utf8_lower); | |
1005 | SvREFCNT_dec(PL_utf8_print); | |
1006 | SvREFCNT_dec(PL_utf8_punct); | |
1007 | SvREFCNT_dec(PL_utf8_xdigit); | |
1008 | SvREFCNT_dec(PL_utf8_mark); | |
1009 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 1010 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 1011 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 1012 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
1013 | SvREFCNT_dec(PL_utf8_idstart); |
1014 | SvREFCNT_dec(PL_utf8_idcont); | |
a0714e2c SS |
1015 | PL_utf8_alnum = NULL; |
1016 | PL_utf8_alnumc = NULL; | |
1017 | PL_utf8_ascii = NULL; | |
1018 | PL_utf8_alpha = NULL; | |
1019 | PL_utf8_space = NULL; | |
1020 | PL_utf8_cntrl = NULL; | |
1021 | PL_utf8_graph = NULL; | |
1022 | PL_utf8_digit = NULL; | |
1023 | PL_utf8_upper = NULL; | |
1024 | PL_utf8_lower = NULL; | |
1025 | PL_utf8_print = NULL; | |
1026 | PL_utf8_punct = NULL; | |
1027 | PL_utf8_xdigit = NULL; | |
1028 | PL_utf8_mark = NULL; | |
1029 | PL_utf8_toupper = NULL; | |
1030 | PL_utf8_totitle = NULL; | |
1031 | PL_utf8_tolower = NULL; | |
1032 | PL_utf8_tofold = NULL; | |
1033 | PL_utf8_idstart = NULL; | |
1034 | PL_utf8_idcont = NULL; | |
5c831c24 | 1035 | |
971a9dd3 GS |
1036 | if (!specialWARN(PL_compiling.cop_warnings)) |
1037 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
a0714e2c | 1038 | PL_compiling.cop_warnings = NULL; |
ac27b0f5 NIS |
1039 | if (!specialCopIO(PL_compiling.cop_io)) |
1040 | SvREFCNT_dec(PL_compiling.cop_io); | |
a0714e2c | 1041 | PL_compiling.cop_io = NULL; |
b3ca2e83 NC |
1042 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints); |
1043 | PL_compiling.cop_hints = NULL; | |
05ec9bb3 NIS |
1044 | CopFILE_free(&PL_compiling); |
1045 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 1046 | |
a0d0e21e | 1047 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1048 | |
3280af22 NIS |
1049 | hv = PL_defstash; |
1050 | PL_defstash = 0; | |
a0d0e21e | 1051 | SvREFCNT_dec(hv); |
5c831c24 | 1052 | SvREFCNT_dec(PL_curstname); |
a0714e2c | 1053 | PL_curstname = NULL; |
a0d0e21e | 1054 | |
5a844595 GS |
1055 | /* clear queued errors */ |
1056 | SvREFCNT_dec(PL_errors); | |
a0714e2c | 1057 | PL_errors = NULL; |
5a844595 | 1058 | |
a0d0e21e | 1059 | FREETMPS; |
0453d815 | 1060 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 1061 | if (PL_scopestack_ix != 0) |
9014280d | 1062 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1063 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
1064 | (long)PL_scopestack_ix); |
1065 | if (PL_savestack_ix != 0) | |
9014280d | 1066 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1067 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
1068 | (long)PL_savestack_ix); |
1069 | if (PL_tmps_floor != -1) | |
9014280d | 1070 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 1071 | (long)PL_tmps_floor + 1); |
a0d0e21e | 1072 | if (cxstack_ix != -1) |
9014280d | 1073 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 1074 | (long)cxstack_ix + 1); |
a0d0e21e | 1075 | } |
8990e307 LW |
1076 | |
1077 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
d33b2eba | 1078 | SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */ |
3280af22 | 1079 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
5226ed68 JH |
1080 | |
1081 | /* the 2 is for PL_fdpid and PL_strtab */ | |
1082 | while (PL_sv_count > 2 && sv_clean_all()) | |
1083 | ; | |
1084 | ||
d33b2eba GS |
1085 | SvFLAGS(PL_fdpid) &= ~SVTYPEMASK; |
1086 | SvFLAGS(PL_fdpid) |= SVt_PVAV; | |
3280af22 NIS |
1087 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
1088 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
d33b2eba | 1089 | |
d4777f27 GS |
1090 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1091 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
7d49f689 | 1092 | PL_fdpid = NULL; |
d33b2eba | 1093 | |
6c644e78 GS |
1094 | #ifdef HAVE_INTERP_INTERN |
1095 | sys_intern_clear(); | |
1096 | #endif | |
1097 | ||
6e72f9df | 1098 | /* Destruct the global string table. */ |
1099 | { | |
1100 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1101 | * so that sv_free() won't fail on them. | |
80459961 NC |
1102 | * Now that the global string table is using a single hunk of memory |
1103 | * for both HE and HEK, we either need to explicitly unshare it the | |
1104 | * correct way, or actually free things here. | |
6e72f9df | 1105 | */ |
80459961 NC |
1106 | I32 riter = 0; |
1107 | const I32 max = HvMAX(PL_strtab); | |
c4420975 | 1108 | HE * const * const array = HvARRAY(PL_strtab); |
80459961 NC |
1109 | HE *hent = array[0]; |
1110 | ||
6e72f9df | 1111 | for (;;) { |
0453d815 | 1112 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
44f8325f | 1113 | HE * const next = HeNEXT(hent); |
9014280d | 1114 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
44f8325f | 1115 | "Unbalanced string table refcount: (%ld) for \"%s\"", |
de616631 | 1116 | (long)hent->he_valu.hent_refcount, HeKEY(hent)); |
80459961 NC |
1117 | Safefree(hent); |
1118 | hent = next; | |
6e72f9df | 1119 | } |
1120 | if (!hent) { | |
1121 | if (++riter > max) | |
1122 | break; | |
1123 | hent = array[riter]; | |
1124 | } | |
1125 | } | |
80459961 NC |
1126 | |
1127 | Safefree(array); | |
1128 | HvARRAY(PL_strtab) = 0; | |
1129 | HvTOTALKEYS(PL_strtab) = 0; | |
1130 | HvFILL(PL_strtab) = 0; | |
6e72f9df | 1131 | } |
3280af22 | 1132 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1133 | |
e652bb2f | 1134 | #ifdef USE_ITHREADS |
c21d1a0f | 1135 | /* free the pointer tables used for cloning */ |
a0739874 | 1136 | ptr_table_free(PL_ptr_table); |
bf9cdc68 | 1137 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1138 | #endif |
a0739874 | 1139 | |
d33b2eba GS |
1140 | /* free special SVs */ |
1141 | ||
1142 | SvREFCNT(&PL_sv_yes) = 0; | |
1143 | sv_clear(&PL_sv_yes); | |
1144 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1145 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1146 | |
1147 | SvREFCNT(&PL_sv_no) = 0; | |
1148 | sv_clear(&PL_sv_no); | |
1149 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1150 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1151 | |
9f375a43 DM |
1152 | { |
1153 | int i; | |
1154 | for (i=0; i<=2; i++) { | |
1155 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1156 | sv_clear(PERL_DEBUG_PAD(i)); | |
1157 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1158 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1159 | } | |
1160 | } | |
1161 | ||
0453d815 | 1162 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1163 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1164 | |
eba0f806 DM |
1165 | #ifdef DEBUG_LEAKING_SCALARS |
1166 | if (PL_sv_count != 0) { | |
1167 | SV* sva; | |
1168 | SV* sv; | |
1169 | register SV* svend; | |
1170 | ||
1171 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { | |
1172 | svend = &sva[SvREFCNT(sva)]; | |
1173 | for (sv = sva + 1; sv < svend; ++sv) { | |
1174 | if (SvTYPE(sv) != SVTYPEMASK) { | |
a548cda8 | 1175 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
61b61456 | 1176 | " flags=0x%"UVxf |
fd0854ff DM |
1177 | " refcnt=%"UVuf pTHX__FORMAT "\n" |
1178 | "\tallocated at %s:%d %s %s%s\n", | |
1179 | sv, sv->sv_flags, sv->sv_refcnt pTHX__VALUE, | |
1180 | sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", | |
1181 | sv->sv_debug_line, | |
1182 | sv->sv_debug_inpad ? "for" : "by", | |
1183 | sv->sv_debug_optype ? | |
1184 | PL_op_name[sv->sv_debug_optype]: "(none)", | |
1185 | sv->sv_debug_cloned ? " (cloned)" : "" | |
1186 | ); | |
2aa47728 | 1187 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
41e4abd8 | 1188 | Perl_dump_sv_child(aTHX_ sv); |
2aa47728 | 1189 | #endif |
eba0f806 DM |
1190 | } |
1191 | } | |
1192 | } | |
1193 | } | |
2aa47728 NC |
1194 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1195 | { | |
1196 | int status; | |
1197 | fd_set rset; | |
1198 | /* Wait for up to 4 seconds for child to terminate. | |
1199 | This seems to be the least effort way of timing out on reaping | |
1200 | its exit status. */ | |
1201 | struct timeval waitfor = {4, 0}; | |
41e4abd8 | 1202 | int sock = PL_dumper_fd; |
2aa47728 NC |
1203 | |
1204 | shutdown(sock, 1); | |
1205 | FD_ZERO(&rset); | |
1206 | FD_SET(sock, &rset); | |
1207 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1208 | waitpid(child, &status, WNOHANG); | |
1209 | close(sock); | |
1210 | } | |
1211 | #endif | |
eba0f806 | 1212 | #endif |
bf9cdc68 | 1213 | PL_sv_count = 0; |
eba0f806 DM |
1214 | |
1215 | ||
56a2bab7 | 1216 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1217 | /* No more IO - including error messages ! */ |
1218 | PerlIO_cleanup(aTHX); | |
1219 | #endif | |
1220 | ||
9f4bd222 | 1221 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
a0714e2c | 1222 | as currently layers use it rather than NULL as a marker |
9f4bd222 NIS |
1223 | for no arg - and will try and SvREFCNT_dec it. |
1224 | */ | |
1225 | SvREFCNT(&PL_sv_undef) = 0; | |
1226 | SvREADONLY_off(&PL_sv_undef); | |
1227 | ||
3280af22 | 1228 | Safefree(PL_origfilename); |
bd61b366 | 1229 | PL_origfilename = NULL; |
3280af22 | 1230 | Safefree(PL_reg_start_tmp); |
bf9cdc68 RG |
1231 | PL_reg_start_tmp = (char**)NULL; |
1232 | PL_reg_start_tmpl = 0; | |
43c5f42d | 1233 | Safefree(PL_reg_curpm); |
82ba1be6 | 1234 | Safefree(PL_reg_poscache); |
dd28f7bb | 1235 | free_tied_hv_pool(); |
3280af22 | 1236 | Safefree(PL_op_mask); |
cf36064f | 1237 | Safefree(PL_psig_ptr); |
bf9cdc68 | 1238 | PL_psig_ptr = (SV**)NULL; |
cf36064f | 1239 | Safefree(PL_psig_name); |
bf9cdc68 | 1240 | PL_psig_name = (SV**)NULL; |
2c2666fc | 1241 | Safefree(PL_bitcount); |
bd61b366 | 1242 | PL_bitcount = NULL; |
ce08f86c | 1243 | Safefree(PL_psig_pend); |
bf9cdc68 | 1244 | PL_psig_pend = (int*)NULL; |
a0714e2c | 1245 | PL_formfeed = NULL; |
6e72f9df | 1246 | nuke_stacks(); |
bf9cdc68 RG |
1247 | PL_tainting = FALSE; |
1248 | PL_taint_warn = FALSE; | |
3280af22 | 1249 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 1250 | PL_debug = 0; |
ac27b0f5 | 1251 | |
a0d0e21e | 1252 | DEBUG_P(debprofdump()); |
d33b2eba | 1253 | |
e5dd39fc | 1254 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1255 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1256 | #endif |
1257 | ||
612f20c3 GS |
1258 | sv_free_arenas(); |
1259 | ||
fc36a67e | 1260 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1261 | ||
3280af22 | 1262 | if (PL_mess_sv) { |
f350b448 NC |
1263 | /* we know that type == SVt_PVMG */ |
1264 | ||
9c63abab | 1265 | /* it could have accumulated taint magic */ |
f350b448 NC |
1266 | MAGIC* mg; |
1267 | MAGIC* moremagic; | |
1268 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1269 | moremagic = mg->mg_moremagic; | |
1270 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1271 | && mg->mg_len >= 0) | |
1272 | Safefree(mg->mg_ptr); | |
1273 | Safefree(mg); | |
9c63abab | 1274 | } |
f350b448 | 1275 | |
fc36a67e | 1276 | /* we know that type >= SVt_PV */ |
8bd4d4c5 | 1277 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1278 | Safefree(SvANY(PL_mess_sv)); |
1279 | Safefree(PL_mess_sv); | |
a0714e2c | 1280 | PL_mess_sv = NULL; |
fc36a67e | 1281 | } |
37038d91 | 1282 | return STATUS_EXIT; |
79072805 LW |
1283 | } |
1284 | ||
954c1994 GS |
1285 | /* |
1286 | =for apidoc perl_free | |
1287 | ||
1288 | Releases a Perl interpreter. See L<perlembed>. | |
1289 | ||
1290 | =cut | |
1291 | */ | |
1292 | ||
79072805 | 1293 | void |
0cb96387 | 1294 | perl_free(pTHXx) |
79072805 | 1295 | { |
7cb608b5 | 1296 | #ifdef PERL_TRACK_MEMPOOL |
55ef9aae MHM |
1297 | { |
1298 | /* | |
1299 | * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero | |
1300 | * value as we're probably hunting memory leaks then | |
1301 | */ | |
1302 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); | |
1303 | if (!s || atoi(s) == 0) { | |
1304 | /* Emulate the PerlHost behaviour of free()ing all memory allocated in this | |
1305 | thread at thread exit. */ | |
1306 | while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)) | |
1307 | safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next)); | |
1308 | } | |
1309 | } | |
7cb608b5 NC |
1310 | #endif |
1311 | ||
acfe0abc | 1312 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1313 | # if defined(PERL_IMPLICIT_SYS) |
b36c9a52 | 1314 | { |
acfe0abc | 1315 | # ifdef NETWARE |
7af12a34 | 1316 | void *host = nw_internal_host; |
acfe0abc | 1317 | # else |
7af12a34 | 1318 | void *host = w32_internal_host; |
acfe0abc | 1319 | # endif |
7af12a34 | 1320 | PerlMem_free(aTHXx); |
acfe0abc | 1321 | # ifdef NETWARE |
7af12a34 | 1322 | nw_delete_internal_host(host); |
acfe0abc | 1323 | # else |
7af12a34 | 1324 | win32_delete_internal_host(host); |
acfe0abc | 1325 | # endif |
7af12a34 | 1326 | } |
1c0ca838 GS |
1327 | # else |
1328 | PerlMem_free(aTHXx); | |
1329 | # endif | |
acfe0abc GS |
1330 | #else |
1331 | PerlMem_free(aTHXx); | |
76e3520e | 1332 | #endif |
79072805 LW |
1333 | } |
1334 | ||
b7f7fff6 | 1335 | #if defined(USE_ITHREADS) |
aebd1ac7 GA |
1336 | /* provide destructors to clean up the thread key when libperl is unloaded */ |
1337 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1338 | ||
826955bd | 1339 | #if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__) |
aebd1ac7 GA |
1340 | #pragma fini "perl_fini" |
1341 | #endif | |
1342 | ||
0dbb1585 AL |
1343 | static void |
1344 | #if defined(__GNUC__) | |
1345 | __attribute__((destructor)) | |
aebd1ac7 | 1346 | #endif |
de009b76 | 1347 | perl_fini(void) |
aebd1ac7 | 1348 | { |
27da23d5 | 1349 | dVAR; |
aebd1ac7 GA |
1350 | if (PL_curinterp) |
1351 | FREE_THREAD_KEY; | |
1352 | } | |
1353 | ||
1354 | #endif /* WIN32 */ | |
1355 | #endif /* THREADS */ | |
1356 | ||
4b556e6c | 1357 | void |
864dbfa3 | 1358 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1359 | { |
97aff369 | 1360 | dVAR; |
3280af22 NIS |
1361 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1362 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1363 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1364 | ++PL_exitlistlen; | |
4b556e6c JD |
1365 | } |
1366 | ||
56cf6df8 RGS |
1367 | #ifdef HAS_PROCSELFEXE |
1368 | /* This is a function so that we don't hold on to MAXPATHLEN | |
1369 | bytes of stack longer than necessary | |
1370 | */ | |
1371 | STATIC void | |
e1ec3a88 | 1372 | S_procself_val(pTHX_ SV *sv, const char *arg0) |
56cf6df8 RGS |
1373 | { |
1374 | char buf[MAXPATHLEN]; | |
1375 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1376 | ||
1377 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1378 | includes a spurious NUL which will cause $^X to fail in system | |
1379 | or backticks (this will prevent extensions from being built and | |
1380 | many tests from working). readlink is not meant to add a NUL. | |
1381 | Normal readlink works fine. | |
1382 | */ | |
1383 | if (len > 0 && buf[len-1] == '\0') { | |
1384 | len--; | |
1385 | } | |
1386 | ||
1387 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1388 | returning the text "unknown" from the readlink rather than the path | |
1389 | to the executable (or returning an error from the readlink). Any valid | |
1390 | path has a '/' in it somewhere, so use that to validate the result. | |
1391 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1392 | */ | |
1393 | if (len > 0 && memchr(buf, '/', len)) { | |
1394 | sv_setpvn(sv,buf,len); | |
1395 | } | |
1396 | else { | |
1397 | sv_setpv(sv,arg0); | |
1398 | } | |
1399 | } | |
1400 | #endif /* HAS_PROCSELFEXE */ | |
b7975bdd NC |
1401 | |
1402 | STATIC void | |
1403 | S_set_caret_X(pTHX) { | |
97aff369 | 1404 | dVAR; |
fafc274c | 1405 | GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */ |
b7975bdd NC |
1406 | if (tmpgv) { |
1407 | #ifdef HAS_PROCSELFEXE | |
1408 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
1409 | #else | |
1410 | #ifdef OS2 | |
c69033f2 | 1411 | sv_setpv(GvSVn(tmpgv), os2_execname(aTHX)); |
b7975bdd | 1412 | #else |
c69033f2 | 1413 | sv_setpv(GvSVn(tmpgv),PL_origargv[0]); |
b7975bdd NC |
1414 | #endif |
1415 | #endif | |
1416 | } | |
1417 | } | |
1418 | ||
954c1994 GS |
1419 | /* |
1420 | =for apidoc perl_parse | |
1421 | ||
1422 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1423 | ||
1424 | =cut | |
1425 | */ | |
1426 | ||
79072805 | 1427 | int |
0cb96387 | 1428 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1429 | { |
27da23d5 | 1430 | dVAR; |
6224f72b | 1431 | I32 oldscope; |
6224f72b | 1432 | int ret; |
db36c5a1 | 1433 | dJMPENV; |
8d063cd8 | 1434 | |
9d4ba2ae AL |
1435 | PERL_UNUSED_VAR(my_perl); |
1436 | ||
a687059c LW |
1437 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
1438 | #ifdef IAMSUID | |
1439 | #undef IAMSUID | |
cea2e8a9 | 1440 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c | 1441 | setuid perl scripts securely.\n"); |
ae3f3efd | 1442 | #endif /* IAMSUID */ |
a687059c LW |
1443 | #endif |
1444 | ||
b0891165 JH |
1445 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
1446 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
103dd899 | 1447 | * This MUST be done before any hash stores or fetches take place. |
008fb0c0 NC |
1448 | * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) |
1449 | * yourself, it is your responsibility to provide a good random seed! | |
830b38bd | 1450 | * You can also define PERL_HASH_SEED in compile time, see hv.h. */ |
008fb0c0 NC |
1451 | if (!PL_rehash_seed_set) |
1452 | PL_rehash_seed = get_hash_seed(); | |
b0891165 | 1453 | { |
9d4ba2ae | 1454 | const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
bed60192 | 1455 | |
1b6737cc AL |
1456 | if (s && (atoi(s) == 1)) |
1457 | PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed); | |
b0891165 JH |
1458 | } |
1459 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
1460 | ||
3280af22 | 1461 | PL_origargc = argc; |
e2975953 | 1462 | PL_origargv = argv; |
a0d0e21e | 1463 | |
a2722ac9 GA |
1464 | if (PL_origalen != 0) { |
1465 | PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */ | |
1466 | } | |
1467 | else { | |
3cb9023d JH |
1468 | /* Set PL_origalen be the sum of the contiguous argv[] |
1469 | * elements plus the size of the env in case that it is | |
e9137a8e | 1470 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
3cb9023d JH |
1471 | * as the maximum modifiable length of $0. In the worst case |
1472 | * the area we are able to modify is limited to the size of | |
43c32782 | 1473 | * the original argv[0]. (See below for 'contiguous', though.) |
3cb9023d | 1474 | * --jhi */ |
e1ec3a88 | 1475 | const char *s = NULL; |
54bfe034 | 1476 | int i; |
1b6737cc | 1477 | const UV mask = |
7d8e7db3 | 1478 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); |
43c32782 | 1479 | /* Do the mask check only if the args seem like aligned. */ |
1b6737cc | 1480 | const UV aligned = |
43c32782 JH |
1481 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); |
1482 | ||
1483 | /* See if all the arguments are contiguous in memory. Note | |
1484 | * that 'contiguous' is a loose term because some platforms | |
1485 | * align the argv[] and the envp[]. If the arguments look | |
1486 | * like non-aligned, assume that they are 'strictly' or | |
1487 | * 'traditionally' contiguous. If the arguments look like | |
1488 | * aligned, we just check that they are within aligned | |
1489 | * PTRSIZE bytes. As long as no system has something bizarre | |
1490 | * like the argv[] interleaved with some other data, we are | |
1491 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
c8941eeb JH |
1492 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1493 | while (*s) s++; | |
1494 | for (i = 1; i < PL_origargc; i++) { | |
1495 | if ((PL_origargv[i] == s + 1 | |
43c32782 | 1496 | #ifdef OS2 |
c8941eeb | 1497 | || PL_origargv[i] == s + 2 |
43c32782 | 1498 | #endif |
c8941eeb JH |
1499 | ) |
1500 | || | |
1501 | (aligned && | |
1502 | (PL_origargv[i] > s && | |
1503 | PL_origargv[i] <= | |
1504 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1505 | ) | |
1506 | { | |
1507 | s = PL_origargv[i]; | |
1508 | while (*s) s++; | |
1509 | } | |
1510 | else | |
1511 | break; | |
54bfe034 | 1512 | } |
54bfe034 | 1513 | } |
3cb9023d | 1514 | /* Can we grab env area too to be used as the area for $0? */ |
2d2af554 | 1515 | if (s && PL_origenviron) { |
43c32782 JH |
1516 | if ((PL_origenviron[0] == s + 1 |
1517 | #ifdef OS2 | |
1518 | || (PL_origenviron[0] == s + 9 && (s += 8)) | |
1519 | #endif | |
1520 | ) | |
1521 | || | |
1522 | (aligned && | |
1523 | (PL_origenviron[0] > s && | |
1524 | PL_origenviron[0] <= | |
1525 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1526 | ) | |
1527 | { | |
1528 | #ifndef OS2 | |
1529 | s = PL_origenviron[0]; | |
1530 | while (*s) s++; | |
1531 | #endif | |
bd61b366 | 1532 | my_setenv("NoNe SuCh", NULL); |
43c32782 JH |
1533 | /* Force copy of environment. */ |
1534 | for (i = 1; PL_origenviron[i]; i++) { | |
1535 | if (PL_origenviron[i] == s + 1 | |
1536 | || | |
1537 | (aligned && | |
1538 | (PL_origenviron[i] > s && | |
1539 | PL_origenviron[i] <= | |
1540 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1541 | ) | |
1542 | { | |
1543 | s = PL_origenviron[i]; | |
1544 | while (*s) s++; | |
1545 | } | |
1546 | else | |
1547 | break; | |
54bfe034 | 1548 | } |
43c32782 | 1549 | } |
54bfe034 | 1550 | } |
2d2af554 | 1551 | PL_origalen = s ? s - PL_origargv[0] + 1 : 0; |
54bfe034 JH |
1552 | } |
1553 | ||
3280af22 | 1554 | if (PL_do_undump) { |
a0d0e21e LW |
1555 | |
1556 | /* Come here if running an undumped a.out. */ | |
1557 | ||
3280af22 NIS |
1558 | PL_origfilename = savepv(argv[0]); |
1559 | PL_do_undump = FALSE; | |
a0d0e21e | 1560 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1561 | init_ids(); |
b7975bdd NC |
1562 | assert (!PL_tainted); |
1563 | TAINT; | |
1564 | S_set_caret_X(aTHX); | |
1565 | TAINT_NOT; | |
a0d0e21e LW |
1566 | init_postdump_symbols(argc,argv,env); |
1567 | return 0; | |
1568 | } | |
1569 | ||
3280af22 | 1570 | if (PL_main_root) { |
3280af22 | 1571 | op_free(PL_main_root); |
5f66b61c | 1572 | PL_main_root = NULL; |
ff0cee69 | 1573 | } |
5f66b61c | 1574 | PL_main_start = NULL; |
3280af22 | 1575 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 1576 | PL_main_cv = NULL; |
79072805 | 1577 | |
3280af22 NIS |
1578 | time(&PL_basetime); |
1579 | oldscope = PL_scopestack_ix; | |
599cee73 | 1580 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1581 | |
14dd3ad8 | 1582 | JMPENV_PUSH(ret); |
6224f72b | 1583 | switch (ret) { |
312caa8e | 1584 | case 0: |
14dd3ad8 | 1585 | parse_body(env,xsinit); |
7d30b5c4 GS |
1586 | if (PL_checkav) |
1587 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1588 | ret = 0; |
1589 | break; | |
6224f72b GS |
1590 | case 1: |
1591 | STATUS_ALL_FAILURE; | |
1592 | /* FALL THROUGH */ | |
1593 | case 2: | |
1594 | /* my_exit() was called */ | |
3280af22 | 1595 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1596 | LEAVE; |
1597 | FREETMPS; | |
3280af22 | 1598 | PL_curstash = PL_defstash; |
7d30b5c4 GS |
1599 | if (PL_checkav) |
1600 | call_list(oldscope, PL_checkav); | |
37038d91 | 1601 | ret = STATUS_EXIT; |
14dd3ad8 | 1602 | break; |
6224f72b | 1603 | case 3: |
bf49b057 | 1604 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1605 | ret = 1; |
1606 | break; | |
6224f72b | 1607 | } |
14dd3ad8 GS |
1608 | JMPENV_POP; |
1609 | return ret; | |
1610 | } | |
1611 | ||
312caa8e | 1612 | STATIC void * |
14dd3ad8 | 1613 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1614 | { |
27da23d5 | 1615 | dVAR; |
312caa8e | 1616 | int argc = PL_origargc; |
8f42b153 | 1617 | char **argv = PL_origargv; |
e1ec3a88 | 1618 | const char *scriptname = NULL; |
312caa8e | 1619 | VOL bool dosearch = FALSE; |
e1ec3a88 | 1620 | const char *validarg = ""; |
312caa8e CS |
1621 | register SV *sv; |
1622 | register char *s; | |
bd61b366 | 1623 | const char *cddir = NULL; |
ab019eaa | 1624 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1625 | bool minus_f = FALSE; |
ab019eaa | 1626 | #endif |
312caa8e | 1627 | |
3280af22 | 1628 | sv_setpvn(PL_linestr,"",0); |
396482e1 | 1629 | sv = newSVpvs(""); /* first used for -I flags */ |
6224f72b GS |
1630 | SAVEFREESV(sv); |
1631 | init_main_stash(); | |
54310121 | 1632 | |
6224f72b GS |
1633 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1634 | if (argv[0][0] != '-' || !argv[0][1]) | |
1635 | break; | |
1636 | #ifdef DOSUID | |
1637 | if (*validarg) | |
1638 | validarg = " PHOOEY "; | |
1639 | else | |
1640 | validarg = argv[0]; | |
ae3f3efd PS |
1641 | /* |
1642 | * Can we rely on the kernel to start scripts with argv[1] set to | |
1643 | * contain all #! line switches (the whole line)? (argv[0] is set to | |
1644 | * the interpreter name, argv[2] to the script name; argv[3] and | |
1645 | * above may contain other arguments.) | |
1646 | */ | |
13281fa4 | 1647 | #endif |
6224f72b GS |
1648 | s = argv[0]+1; |
1649 | reswitch: | |
1650 | switch (*s) { | |
729a02f2 | 1651 | case 'C': |
1d5472a9 GS |
1652 | #ifndef PERL_STRICT_CR |
1653 | case '\r': | |
1654 | #endif | |
6224f72b GS |
1655 | case ' ': |
1656 | case '0': | |
1657 | case 'F': | |
1658 | case 'a': | |
1659 | case 'c': | |
1660 | case 'd': | |
1661 | case 'D': | |
1662 | case 'h': | |
1663 | case 'i': | |
1664 | case 'l': | |
1665 | case 'M': | |
1666 | case 'm': | |
1667 | case 'n': | |
1668 | case 'p': | |
1669 | case 's': | |
1670 | case 'u': | |
1671 | case 'U': | |
1672 | case 'v': | |
599cee73 PM |
1673 | case 'W': |
1674 | case 'X': | |
6224f72b | 1675 | case 'w': |
06492da6 | 1676 | case 'A': |
97bd5664 | 1677 | if ((s = moreswitches(s))) |
6224f72b GS |
1678 | goto reswitch; |
1679 | break; | |
33b78306 | 1680 | |
1dbad523 | 1681 | case 't': |
22f7c9c9 | 1682 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
317ea90d MS |
1683 | if( !PL_tainting ) { |
1684 | PL_taint_warn = TRUE; | |
1685 | PL_tainting = TRUE; | |
1686 | } | |
1687 | s++; | |
1688 | goto reswitch; | |
6224f72b | 1689 | case 'T': |
22f7c9c9 | 1690 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
3280af22 | 1691 | PL_tainting = TRUE; |
317ea90d | 1692 | PL_taint_warn = FALSE; |
6224f72b GS |
1693 | s++; |
1694 | goto reswitch; | |
f86702cc | 1695 | |
bc9b29db RH |
1696 | case 'E': |
1697 | PL_minus_E = TRUE; | |
1698 | /* FALL THROUGH */ | |
6224f72b | 1699 | case 'e': |
bf4acbe4 GS |
1700 | #ifdef MACOS_TRADITIONAL |
1701 | /* ignore -e for Dev:Pseudo argument */ | |
1702 | if (argv[1] && !strcmp(argv[1], "Dev:Pseudo")) | |
e55ac0fa | 1703 | break; |
bf4acbe4 | 1704 | #endif |
a52eba0e | 1705 | forbid_setid('e', -1); |
3280af22 | 1706 | if (!PL_e_script) { |
396482e1 | 1707 | PL_e_script = newSVpvs(""); |
0cb96387 | 1708 | filter_add(read_e_script, NULL); |
6224f72b GS |
1709 | } |
1710 | if (*++s) | |
3280af22 | 1711 | sv_catpv(PL_e_script, s); |
6224f72b | 1712 | else if (argv[1]) { |
3280af22 | 1713 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1714 | argc--,argv++; |
1715 | } | |
1716 | else | |
bc9b29db | 1717 | Perl_croak(aTHX_ "No code specified for -%c", *s); |
396482e1 | 1718 | sv_catpvs(PL_e_script, "\n"); |
6224f72b | 1719 | break; |
afe37c7d | 1720 | |
20ef40cf | 1721 | case 'f': |
f5542d3a | 1722 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1723 | minus_f = TRUE; |
f5542d3a | 1724 | #endif |
20ef40cf GA |
1725 | s++; |
1726 | goto reswitch; | |
1727 | ||
6224f72b | 1728 | case 'I': /* -I handled both here and in moreswitches() */ |
a52eba0e | 1729 | forbid_setid('I', -1); |
bd61b366 | 1730 | if (!*++s && (s=argv[1]) != NULL) { |
6224f72b GS |
1731 | argc--,argv++; |
1732 | } | |
6224f72b | 1733 | if (s && *s) { |
0df16ed7 | 1734 | STRLEN len = strlen(s); |
aec46f14 | 1735 | const char * const p = savepvn(s, len); |
88fe16b2 | 1736 | incpush(p, TRUE, TRUE, FALSE, FALSE); |
396482e1 | 1737 | sv_catpvs(sv, "-I"); |
0df16ed7 | 1738 | sv_catpvn(sv, p, len); |
396482e1 | 1739 | sv_catpvs(sv, " "); |
6224f72b | 1740 | Safefree(p); |
0df16ed7 GS |
1741 | } |
1742 | else | |
a67e862a | 1743 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b GS |
1744 | break; |
1745 | case 'P': | |
a52eba0e | 1746 | forbid_setid('P', -1); |
3280af22 | 1747 | PL_preprocess = TRUE; |
6224f72b GS |
1748 | s++; |
1749 | goto reswitch; | |
1750 | case 'S': | |
a52eba0e | 1751 | forbid_setid('S', -1); |
6224f72b GS |
1752 | dosearch = TRUE; |
1753 | s++; | |
1754 | goto reswitch; | |
1755 | case 'V': | |
7edfd0ef NC |
1756 | { |
1757 | SV *opts_prog; | |
1758 | ||
1759 | if (!PL_preambleav) | |
1760 | PL_preambleav = newAV(); | |
1761 | av_push(PL_preambleav, | |
396482e1 | 1762 | newSVpvs("use Config;")); |
7edfd0ef NC |
1763 | if (*++s != ':') { |
1764 | STRLEN opts; | |
1765 | ||
396482e1 | 1766 | opts_prog = newSVpvs("print Config::myconfig(),"); |
6224f72b | 1767 | #ifdef VMS |
396482e1 | 1768 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 1769 | #else |
396482e1 | 1770 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 1771 | #endif |
7edfd0ef | 1772 | opts = SvCUR(opts_prog); |
efcaa95b | 1773 | |
9cd7d3f2 | 1774 | Perl_sv_catpv(aTHX_ opts_prog,"\" Compile-time options:" |
6224f72b | 1775 | # ifdef DEBUGGING |
e2e4dbf1 | 1776 | " DEBUGGING" |
6224f72b | 1777 | # endif |
4f185743 NC |
1778 | # ifdef DEBUG_LEAKING_SCALARS |
1779 | " DEBUG_LEAKING_SCALARS" | |
1780 | # endif | |
85e1fcb9 | 1781 | # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
e2e4dbf1 | 1782 | " DEBUG_LEAKING_SCALARS_FORK_DUMP" |
85e1fcb9 SH |
1783 | # endif |
1784 | # ifdef FAKE_THREADS | |
e2e4dbf1 | 1785 | " FAKE_THREADS" |
85e1fcb9 | 1786 | # endif |
6224f72b | 1787 | # ifdef MULTIPLICITY |
e2e4dbf1 | 1788 | " MULTIPLICITY" |
6224f72b | 1789 | # endif |
85e1fcb9 | 1790 | # ifdef MYMALLOC |
e2e4dbf1 | 1791 | " MYMALLOC" |
85e1fcb9 | 1792 | # endif |
3bcf5ed8 SP |
1793 | # ifdef NO_MATHOMS |
1794 | " NO_MATHOMS" | |
1795 | # endif | |
85e1fcb9 | 1796 | # ifdef PERL_DONT_CREATE_GVSV |
e2e4dbf1 | 1797 | " PERL_DONT_CREATE_GVSV" |
85e1fcb9 SH |
1798 | # endif |
1799 | # ifdef PERL_GLOBAL_STRUCT | |
e2e4dbf1 | 1800 | " PERL_GLOBAL_STRUCT" |
85e1fcb9 SH |
1801 | # endif |
1802 | # ifdef PERL_IMPLICIT_CONTEXT | |
e2e4dbf1 | 1803 | " PERL_IMPLICIT_CONTEXT" |
85e1fcb9 SH |
1804 | # endif |
1805 | # ifdef PERL_IMPLICIT_SYS | |
e2e4dbf1 | 1806 | " PERL_IMPLICIT_SYS" |
85e1fcb9 | 1807 | # endif |
a724edfe NC |
1808 | # ifdef PERL_MAD |
1809 | " PERL_MAD" | |
1810 | # endif | |
85e1fcb9 | 1811 | # ifdef PERL_MALLOC_WRAP |
e2e4dbf1 | 1812 | " PERL_MALLOC_WRAP" |
85e1fcb9 SH |
1813 | # endif |
1814 | # ifdef PERL_NEED_APPCTX | |
e2e4dbf1 | 1815 | " PERL_NEED_APPCTX" |
85e1fcb9 SH |
1816 | # endif |
1817 | # ifdef PERL_NEED_TIMESBASE | |
e2e4dbf1 | 1818 | " PERL_NEED_TIMESBASE" |
85e1fcb9 SH |
1819 | # endif |
1820 | # ifdef PERL_OLD_COPY_ON_WRITE | |
e2e4dbf1 | 1821 | " PERL_OLD_COPY_ON_WRITE" |
85e1fcb9 | 1822 | # endif |
9c0a4d5d DM |
1823 | # ifdef PERL_TRACK_MEMPOOL |
1824 | " PERL_TRACK_MEMPOOL" | |
1825 | # endif | |
417cd4a8 SP |
1826 | # ifdef PERL_USE_SAFE_PUTENV |
1827 | " PERL_USE_SAFE_PUTENV" | |
1828 | # endif | |
ca0c25f6 NC |
1829 | #ifdef PERL_USES_PL_PIDSTATUS |
1830 | " PERL_USES_PL_PIDSTATUS" | |
1831 | #endif | |
85e1fcb9 | 1832 | # ifdef PL_OP_SLAB_ALLOC |
e2e4dbf1 | 1833 | " PL_OP_SLAB_ALLOC" |
85e1fcb9 SH |
1834 | # endif |
1835 | # ifdef THREADS_HAVE_PIDS | |
e2e4dbf1 | 1836 | " THREADS_HAVE_PIDS" |
85e1fcb9 | 1837 | # endif |
85e1fcb9 | 1838 | # ifdef USE_64_BIT_ALL |
e2e4dbf1 | 1839 | " USE_64_BIT_ALL" |
ac5e8965 | 1840 | # endif |
10cc9d2a | 1841 | # ifdef USE_64_BIT_INT |
e2e4dbf1 | 1842 | " USE_64_BIT_INT" |
10cc9d2a | 1843 | # endif |
85e1fcb9 | 1844 | # ifdef USE_ITHREADS |
e2e4dbf1 | 1845 | " USE_ITHREADS" |
85e1fcb9 SH |
1846 | # endif |
1847 | # ifdef USE_LARGE_FILES | |
e2e4dbf1 | 1848 | " USE_LARGE_FILES" |
ac5e8965 JH |
1849 | # endif |
1850 | # ifdef USE_LONG_DOUBLE | |
e2e4dbf1 | 1851 | " USE_LONG_DOUBLE" |
ac5e8965 | 1852 | # endif |
85e1fcb9 | 1853 | # ifdef USE_PERLIO |
e2e4dbf1 | 1854 | " USE_PERLIO" |
53430762 | 1855 | # endif |
85e1fcb9 | 1856 | # ifdef USE_REENTRANT_API |
e2e4dbf1 | 1857 | " USE_REENTRANT_API" |
85e1fcb9 SH |
1858 | # endif |
1859 | # ifdef USE_SFIO | |
e2e4dbf1 | 1860 | " USE_SFIO" |
ac5e8965 | 1861 | # endif |
20ef40cf | 1862 | # ifdef USE_SITECUSTOMIZE |
e2e4dbf1 | 1863 | " USE_SITECUSTOMIZE" |
20ef40cf | 1864 | # endif |
85e1fcb9 | 1865 | # ifdef USE_SOCKS |
e2e4dbf1 | 1866 | " USE_SOCKS" |
b363f7ed | 1867 | # endif |
e2e4dbf1 | 1868 | ); |
efcaa95b | 1869 | |
7edfd0ef NC |
1870 | while (SvCUR(opts_prog) > opts+76) { |
1871 | /* find last space after "options: " and before col 76 | |
1872 | */ | |
efcaa95b | 1873 | |
7edfd0ef | 1874 | const char *space; |
c4420975 | 1875 | char * const pv = SvPV_nolen(opts_prog); |
7edfd0ef NC |
1876 | const char c = pv[opts+76]; |
1877 | pv[opts+76] = '\0'; | |
1878 | space = strrchr(pv+opts+26, ' '); | |
1879 | pv[opts+76] = c; | |
1880 | if (!space) break; /* "Can't happen" */ | |
efcaa95b | 1881 | |
7edfd0ef | 1882 | /* break the line before that space */ |
efcaa95b | 1883 | |
7edfd0ef | 1884 | opts = space - pv; |
89529cee | 1885 | Perl_sv_insert(aTHX_ opts_prog, opts, 0, |
6a245ed1 | 1886 | STR_WITH_LEN("\\n ")); |
7edfd0ef | 1887 | } |
efcaa95b | 1888 | |
396482e1 | 1889 | sv_catpvs(opts_prog,"\\n\","); |
b363f7ed | 1890 | |
6224f72b | 1891 | #if defined(LOCAL_PATCH_COUNT) |
7edfd0ef NC |
1892 | if (LOCAL_PATCH_COUNT > 0) { |
1893 | int i; | |
396482e1 | 1894 | sv_catpvs(opts_prog, |
7edfd0ef NC |
1895 | "\" Locally applied patches:\\n\","); |
1896 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
1897 | if (PL_localpatches[i]) | |
1898 | Perl_sv_catpvf(aTHX_ opts_prog,"q%c\t%s\n%c,", | |
1899 | 0, PL_localpatches[i], 0); | |
1900 | } | |
6224f72b | 1901 | } |
6224f72b | 1902 | #endif |
7edfd0ef NC |
1903 | Perl_sv_catpvf(aTHX_ opts_prog, |
1904 | "\" Built under %s\\n\"",OSNAME); | |
6224f72b GS |
1905 | #ifdef __DATE__ |
1906 | # ifdef __TIME__ | |
7edfd0ef NC |
1907 | Perl_sv_catpvf(aTHX_ opts_prog, |
1908 | ",\" Compiled at %s %s\\n\"",__DATE__, | |
1909 | __TIME__); | |
6224f72b | 1910 | # else |
7edfd0ef NC |
1911 | Perl_sv_catpvf(aTHX_ opts_prog,",\" Compiled on %s\\n\"", |
1912 | __DATE__); | |
6224f72b GS |
1913 | # endif |
1914 | #endif | |
396482e1 | 1915 | sv_catpvs(opts_prog, "; $\"=\"\\n \"; " |
7edfd0ef NC |
1916 | "@env = map { \"$_=\\\"$ENV{$_}\\\"\" } " |
1917 | "sort grep {/^PERL/} keys %ENV; "); | |
69fcd688 | 1918 | #ifdef __CYGWIN__ |
396482e1 | 1919 | sv_catpvs(opts_prog, |
7edfd0ef | 1920 | "push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); |
69fcd688 | 1921 | #endif |
396482e1 | 1922 | sv_catpvs(opts_prog, |
7edfd0ef NC |
1923 | "print \" \\%ENV:\\n @env\\n\" if @env;" |
1924 | "print \" \\@INC:\\n @INC\\n\";"); | |
1925 | } | |
1926 | else { | |
1927 | ++s; | |
1928 | opts_prog = Perl_newSVpvf(aTHX_ | |
1929 | "Config::config_vars(qw%c%s%c)", | |
1930 | 0, s, 0); | |
1931 | s += strlen(s); | |
1932 | } | |
1933 | av_push(PL_preambleav, opts_prog); | |
1934 | /* don't look for script or read stdin */ | |
1935 | scriptname = BIT_BUCKET; | |
1936 | goto reswitch; | |
6224f72b | 1937 | } |
6224f72b | 1938 | case 'x': |
3280af22 | 1939 | PL_doextract = TRUE; |
6224f72b GS |
1940 | s++; |
1941 | if (*s) | |
f4c556ac | 1942 | cddir = s; |
6224f72b GS |
1943 | break; |
1944 | case 0: | |
1945 | break; | |
1946 | case '-': | |
1947 | if (!*++s || isSPACE(*s)) { | |
1948 | argc--,argv++; | |
1949 | goto switch_end; | |
1950 | } | |
1951 | /* catch use of gnu style long options */ | |
1952 | if (strEQ(s, "version")) { | |
dd374669 | 1953 | s = (char *)"v"; |
6224f72b GS |
1954 | goto reswitch; |
1955 | } | |
1956 | if (strEQ(s, "help")) { | |
dd374669 | 1957 | s = (char *)"h"; |
6224f72b GS |
1958 | goto reswitch; |
1959 | } | |
1960 | s--; | |
1961 | /* FALL THROUGH */ | |
1962 | default: | |
cea2e8a9 | 1963 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
1964 | } |
1965 | } | |
6224f72b | 1966 | switch_end: |
54310121 | 1967 | |
f675dbe5 CB |
1968 | if ( |
1969 | #ifndef SECURE_INTERNAL_GETENV | |
1970 | !PL_tainting && | |
1971 | #endif | |
cf756827 | 1972 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 1973 | { |
e1ec3a88 | 1974 | const char *popt = s; |
74288ac8 GS |
1975 | while (isSPACE(*s)) |
1976 | s++; | |
317ea90d | 1977 | if (*s == '-' && *(s+1) == 'T') { |
22f7c9c9 | 1978 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 1979 | PL_tainting = TRUE; |
317ea90d MS |
1980 | PL_taint_warn = FALSE; |
1981 | } | |
74288ac8 | 1982 | else { |
bd61b366 | 1983 | char *popt_copy = NULL; |
74288ac8 | 1984 | while (s && *s) { |
4ea8f8fb | 1985 | char *d; |
74288ac8 GS |
1986 | while (isSPACE(*s)) |
1987 | s++; | |
1988 | if (*s == '-') { | |
1989 | s++; | |
1990 | if (isSPACE(*s)) | |
1991 | continue; | |
1992 | } | |
4ea8f8fb | 1993 | d = s; |
74288ac8 GS |
1994 | if (!*s) |
1995 | break; | |
e4af53b0 | 1996 | if (!strchr("CDIMUdmtwA", *s)) |
cea2e8a9 | 1997 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
1998 | while (++s && *s) { |
1999 | if (isSPACE(*s)) { | |
cf756827 GS |
2000 | if (!popt_copy) { |
2001 | popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0))); | |
2002 | s = popt_copy + (s - popt); | |
2003 | d = popt_copy + (d - popt); | |
2004 | } | |
4ea8f8fb MS |
2005 | *s++ = '\0'; |
2006 | break; | |
2007 | } | |
2008 | } | |
1c4db469 | 2009 | if (*d == 't') { |
317ea90d MS |
2010 | if( !PL_tainting ) { |
2011 | PL_taint_warn = TRUE; | |
2012 | PL_tainting = TRUE; | |
2013 | } | |
1c4db469 | 2014 | } else { |
97bd5664 | 2015 | moreswitches(d); |
1c4db469 | 2016 | } |
6224f72b | 2017 | } |
6224f72b GS |
2018 | } |
2019 | } | |
a0d0e21e | 2020 | |
20ef40cf GA |
2021 | #ifdef USE_SITECUSTOMIZE |
2022 | if (!minus_f) { | |
2023 | if (!PL_preambleav) | |
2024 | PL_preambleav = newAV(); | |
2025 | av_unshift(PL_preambleav, 1); | |
2026 | (void)av_store(PL_preambleav, 0, Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP)); | |
2027 | } | |
2028 | #endif | |
2029 | ||
317ea90d MS |
2030 | if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) { |
2031 | PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize); | |
2032 | } | |
2033 | ||
6224f72b GS |
2034 | if (!scriptname) |
2035 | scriptname = argv[0]; | |
3280af22 | 2036 | if (PL_e_script) { |
6224f72b GS |
2037 | argc++,argv--; |
2038 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
2039 | } | |
bd61b366 | 2040 | else if (scriptname == NULL) { |
6224f72b GS |
2041 | #ifdef MSDOS |
2042 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
97bd5664 | 2043 | moreswitches("h"); |
6224f72b GS |
2044 | #endif |
2045 | scriptname = "-"; | |
2046 | } | |
2047 | ||
b7975bdd NC |
2048 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
2049 | assert (!PL_tainted); | |
2050 | TAINT; | |
2051 | S_set_caret_X(aTHX); | |
2052 | TAINT_NOT; | |
6224f72b GS |
2053 | init_perllib(); |
2054 | ||
a52eba0e NC |
2055 | { |
2056 | int suidscript; | |
2057 | const int fdscript | |
2058 | = open_script(scriptname, dosearch, sv, &suidscript); | |
6224f72b | 2059 | |
a52eba0e | 2060 | validate_suid(validarg, scriptname, fdscript, suidscript); |
6224f72b | 2061 | |
64ca3a65 | 2062 | #ifndef PERL_MICRO |
a52eba0e NC |
2063 | # if defined(SIGCHLD) || defined(SIGCLD) |
2064 | { | |
2065 | # ifndef SIGCHLD | |
2066 | # define SIGCHLD SIGCLD | |
2067 | # endif | |
2068 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
2069 | if (sigstate == (Sighandler_t) SIG_IGN) { | |
2070 | if (ckWARN(WARN_SIGNAL)) | |
2071 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), | |
2072 | "Can't ignore signal CHLD, forcing to default"); | |
2073 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
2074 | } | |
0b5b802d | 2075 | } |
a52eba0e | 2076 | # endif |
64ca3a65 | 2077 | #endif |
0b5b802d | 2078 | |
a52eba0e | 2079 | if (PL_doextract |
bf4acbe4 | 2080 | #ifdef MACOS_TRADITIONAL |
a52eba0e | 2081 | || gMacPerl_AlwaysExtract |
bf4acbe4 | 2082 | #endif |
a52eba0e | 2083 | ) { |
faef540c NC |
2084 | |
2085 | /* This will croak if suidscript is >= 0, as -x cannot be used with | |
2086 | setuid scripts. */ | |
2087 | forbid_setid('x', suidscript); | |
2088 | /* Hence you can't get here if suidscript >= 0 */ | |
2089 | ||
2090 | find_beginning(); | |
a52eba0e NC |
2091 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) |
2092 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
2093 | } | |
f4c556ac | 2094 | } |
6224f72b | 2095 | |
561b68a9 | 2096 | PL_main_cv = PL_compcv = (CV*)newSV(0); |
3280af22 NIS |
2097 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); |
2098 | CvUNIQUE_on(PL_compcv); | |
2099 | ||
dd2155a4 | 2100 | CvPADLIST(PL_compcv) = pad_new(0); |
6224f72b | 2101 | |
0c4f7ff0 | 2102 | boot_core_PerlIO(); |
6224f72b | 2103 | boot_core_UNIVERSAL(); |
09bef843 | 2104 | boot_core_xsutils(); |
6224f72b GS |
2105 | |
2106 | if (xsinit) | |
acfe0abc | 2107 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 2108 | #ifndef PERL_MICRO |
d0d72822 | 2109 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) || defined(SYMBIAN) |
c5be433b | 2110 | init_os_extras(); |
6224f72b | 2111 | #endif |
64ca3a65 | 2112 | #endif |
6224f72b | 2113 | |
29209bc5 | 2114 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
2115 | # ifdef HAS_SOCKS5_INIT |
2116 | socks5_init(argv[0]); | |
2117 | # else | |
29209bc5 | 2118 | SOCKSinit(argv[0]); |
1b9c9cf5 | 2119 | # endif |
ac27b0f5 | 2120 | #endif |
29209bc5 | 2121 | |
6224f72b GS |
2122 | init_predump_symbols(); |
2123 | /* init_postdump_symbols not currently designed to be called */ | |
2124 | /* more than once (ENV isn't cleared first, for example) */ | |
2125 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2126 | if (!PL_do_undump) |
6224f72b GS |
2127 | init_postdump_symbols(argc,argv,env); |
2128 | ||
27da23d5 JH |
2129 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2130 | * or explicitly in some platforms. | |
085a54d9 | 2131 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 2132 | * look like the user wants to use UTF-8. */ |
a0fd4948 | 2133 | #if defined(__SYMBIAN32__) |
27da23d5 JH |
2134 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ |
2135 | #endif | |
06e66572 JH |
2136 | if (PL_unicode) { |
2137 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 2138 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
2139 | IO* io; |
2140 | PerlIO* fp; | |
2141 | SV* sv; | |
2142 | ||
a05d7ebb | 2143 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 2144 | * and the default open disciplines. */ |
a05d7ebb JH |
2145 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2146 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2147 | (fp = IoIFP(io))) | |
2148 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2149 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2150 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2151 | (fp = IoOFP(io))) | |
2152 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2153 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2154 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2155 | (fp = IoOFP(io))) | |
2156 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2157 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
fafc274c NC |
2158 | (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL, |
2159 | SVt_PV)))) { | |
a05d7ebb JH |
2160 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; |
2161 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2162 | if (in) { | |
2163 | if (out) | |
2164 | sv_setpvn(sv, ":utf8\0:utf8", 11); | |
2165 | else | |
2166 | sv_setpvn(sv, ":utf8\0", 6); | |
2167 | } | |
2168 | else if (out) | |
2169 | sv_setpvn(sv, "\0:utf8", 6); | |
2170 | SvSETMAGIC(sv); | |
2171 | } | |
b310b053 JH |
2172 | } |
2173 | } | |
2174 | ||
4ffa73a3 JH |
2175 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2176 | if (strEQ(s, "unsafe")) | |
2177 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2178 | else if (strEQ(s, "safe")) | |
2179 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2180 | else | |
2181 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2182 | } | |
2183 | ||
81d86705 NC |
2184 | #ifdef PERL_MAD |
2185 | if ((s = PerlEnv_getenv("PERL_XMLDUMP"))) { | |
2186 | PL_madskills = 1; | |
2187 | PL_minus_c = 1; | |
2188 | if (!s || !s[0]) | |
2189 | PL_xmlfp = PerlIO_stdout(); | |
2190 | else { | |
2191 | PL_xmlfp = PerlIO_open(s, "w"); | |
2192 | if (!PL_xmlfp) | |
2193 | Perl_croak(aTHX_ "Can't open %s", s); | |
2194 | } | |
2195 | my_setenv("PERL_XMLDUMP", Nullch); /* hide from subprocs */ | |
2196 | } | |
2197 | if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) { | |
2198 | PL_madskills = atoi(s); | |
2199 | my_setenv("PERL_MADSKILLS", Nullch); /* hide from subprocs */ | |
2200 | } | |
2201 | #endif | |
2202 | ||
6224f72b GS |
2203 | init_lexer(); |
2204 | ||
2205 | /* now parse the script */ | |
2206 | ||
93189314 | 2207 | SETERRNO(0,SS_NORMAL); |
3280af22 | 2208 | PL_error_count = 0; |
bf4acbe4 GS |
2209 | #ifdef MACOS_TRADITIONAL |
2210 | if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) { | |
2211 | if (PL_minus_c) | |
2212 | Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); | |
2213 | else { | |
2214 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", | |
2215 | MacPerl_MPWFileName(PL_origfilename)); | |
2216 | } | |
2217 | } | |
2218 | #else | |
3280af22 NIS |
2219 | if (yyparse() || PL_error_count) { |
2220 | if (PL_minus_c) | |
cea2e8a9 | 2221 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2222 | else { |
cea2e8a9 | 2223 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2224 | PL_origfilename); |
6224f72b GS |
2225 | } |
2226 | } | |
bf4acbe4 | 2227 | #endif |
57843af0 | 2228 | CopLINE_set(PL_curcop, 0); |
3280af22 NIS |
2229 | PL_curstash = PL_defstash; |
2230 | PL_preprocess = FALSE; | |
2231 | if (PL_e_script) { | |
2232 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 2233 | PL_e_script = NULL; |
6224f72b GS |
2234 | } |
2235 | ||
3280af22 | 2236 | if (PL_do_undump) |
6224f72b GS |
2237 | my_unexec(); |
2238 | ||
57843af0 GS |
2239 | if (isWARN_ONCE) { |
2240 | SAVECOPFILE(PL_curcop); | |
2241 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2242 | gv_check(PL_defstash); |
57843af0 | 2243 | } |
6224f72b GS |
2244 | |
2245 | LEAVE; | |
2246 | FREETMPS; | |
2247 | ||
2248 | #ifdef MYMALLOC | |
2249 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
2250 | dump_mstats("after compilation:"); | |
2251 | #endif | |
2252 | ||
2253 | ENTER; | |
3280af22 | 2254 | PL_restartop = 0; |
312caa8e | 2255 | return NULL; |
6224f72b GS |
2256 | } |
2257 | ||
954c1994 GS |
2258 | /* |
2259 | =for apidoc perl_run | |
2260 | ||
2261 | Tells a Perl interpreter to run. See L<perlembed>. | |
2262 | ||
2263 | =cut | |
2264 | */ | |
2265 | ||
6224f72b | 2266 | int |
0cb96387 | 2267 | perl_run(pTHXx) |
6224f72b | 2268 | { |
97aff369 | 2269 | dVAR; |
6224f72b | 2270 | I32 oldscope; |
14dd3ad8 | 2271 | int ret = 0; |
db36c5a1 | 2272 | dJMPENV; |
6224f72b | 2273 | |
96a5add6 | 2274 | PERL_UNUSED_CONTEXT; |
9d4ba2ae | 2275 | |
3280af22 | 2276 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2277 | #ifdef VMS |
2278 | VMSISH_HUSHED = 0; | |
2279 | #endif | |
6224f72b | 2280 | |
14dd3ad8 | 2281 | JMPENV_PUSH(ret); |
6224f72b GS |
2282 | switch (ret) { |
2283 | case 1: | |
2284 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2285 | goto redo_body; |
14dd3ad8 | 2286 | case 0: /* normal completion */ |
14dd3ad8 GS |
2287 | redo_body: |
2288 | run_body(oldscope); | |
14dd3ad8 GS |
2289 | /* FALL THROUGH */ |
2290 | case 2: /* my_exit() */ | |
3280af22 | 2291 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2292 | LEAVE; |
2293 | FREETMPS; | |
3280af22 | 2294 | PL_curstash = PL_defstash; |
3a1ee7e8 | 2295 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
2296 | PL_endav && !PL_minus_c) |
2297 | call_list(oldscope, PL_endav); | |
6224f72b GS |
2298 | #ifdef MYMALLOC |
2299 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2300 | dump_mstats("after execution: "); | |
2301 | #endif | |
37038d91 | 2302 | ret = STATUS_EXIT; |
14dd3ad8 | 2303 | break; |
6224f72b | 2304 | case 3: |
312caa8e CS |
2305 | if (PL_restartop) { |
2306 | POPSTACK_TO(PL_mainstack); | |
2307 | goto redo_body; | |
6224f72b | 2308 | } |
bf49b057 | 2309 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 2310 | FREETMPS; |
14dd3ad8 GS |
2311 | ret = 1; |
2312 | break; | |
6224f72b GS |
2313 | } |
2314 | ||
14dd3ad8 GS |
2315 | JMPENV_POP; |
2316 | return ret; | |
312caa8e CS |
2317 | } |
2318 | ||
14dd3ad8 | 2319 | |
dd374669 | 2320 | STATIC void |
14dd3ad8 GS |
2321 | S_run_body(pTHX_ I32 oldscope) |
2322 | { | |
97aff369 | 2323 | dVAR; |
6224f72b | 2324 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 2325 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 2326 | |
3280af22 | 2327 | if (!PL_restartop) { |
81d86705 NC |
2328 | #ifdef PERL_MAD |
2329 | if (PL_xmlfp) { | |
2330 | xmldump_all(); | |
2331 | exit(0); /* less likely to core dump than my_exit(0) */ | |
2332 | } | |
2333 | #endif | |
6224f72b | 2334 | DEBUG_x(dump_all()); |
cf2782cd | 2335 | #ifdef DEBUGGING |
ecae49c0 NC |
2336 | if (!DEBUG_q_TEST) |
2337 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
cf2782cd | 2338 | #endif |
b900a521 JH |
2339 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
2340 | PTR2UV(thr))); | |
6224f72b | 2341 | |
3280af22 | 2342 | if (PL_minus_c) { |
bf4acbe4 | 2343 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
2344 | PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", |
2345 | (gMacPerl_ErrorFormat ? "# " : ""), | |
2346 | MacPerl_MPWFileName(PL_origfilename)); | |
bf4acbe4 | 2347 | #else |
bf49b057 | 2348 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
bf4acbe4 | 2349 | #endif |
6224f72b GS |
2350 | my_exit(0); |
2351 | } | |
3280af22 | 2352 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2353 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
2354 | if (PL_initav) |
2355 | call_list(oldscope, PL_initav); | |
6224f72b GS |
2356 | } |
2357 | ||
2358 | /* do it */ | |
2359 | ||
3280af22 | 2360 | if (PL_restartop) { |
533c011a | 2361 | PL_op = PL_restartop; |
3280af22 | 2362 | PL_restartop = 0; |
cea2e8a9 | 2363 | CALLRUNOPS(aTHX); |
6224f72b | 2364 | } |
3280af22 NIS |
2365 | else if (PL_main_start) { |
2366 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2367 | PL_op = PL_main_start; |
cea2e8a9 | 2368 | CALLRUNOPS(aTHX); |
6224f72b | 2369 | } |
f6b3007c JH |
2370 | my_exit(0); |
2371 | /* NOTREACHED */ | |
6224f72b GS |
2372 | } |
2373 | ||
954c1994 | 2374 | /* |
ccfc67b7 JH |
2375 | =head1 SV Manipulation Functions |
2376 | ||
954c1994 GS |
2377 | =for apidoc p||get_sv |
2378 | ||
2379 | Returns the SV of the specified Perl scalar. If C<create> is set and the | |
2380 | Perl variable does not exist then it will be created. If C<create> is not | |
2381 | set and the variable does not exist then NULL is returned. | |
2382 | ||
2383 | =cut | |
2384 | */ | |
2385 | ||
6224f72b | 2386 | SV* |
864dbfa3 | 2387 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
2388 | { |
2389 | GV *gv; | |
6224f72b GS |
2390 | gv = gv_fetchpv(name, create, SVt_PV); |
2391 | if (gv) | |
2392 | return GvSV(gv); | |
a0714e2c | 2393 | return NULL; |
6224f72b GS |
2394 | } |
2395 | ||
954c1994 | 2396 | /* |
ccfc67b7 JH |
2397 | =head1 Array Manipulation Functions |
2398 | ||
954c1994 GS |
2399 | =for apidoc p||get_av |
2400 | ||
2401 | Returns the AV of the specified Perl array. If C<create> is set and the | |
2402 | Perl variable does not exist then it will be created. If C<create> is not | |
2403 | set and the variable does not exist then NULL is returned. | |
2404 | ||
2405 | =cut | |
2406 | */ | |
2407 | ||
6224f72b | 2408 | AV* |
864dbfa3 | 2409 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b | 2410 | { |
c4420975 | 2411 | GV* const gv = gv_fetchpv(name, create, SVt_PVAV); |
6224f72b GS |
2412 | if (create) |
2413 | return GvAVn(gv); | |
2414 | if (gv) | |
2415 | return GvAV(gv); | |
7d49f689 | 2416 | return NULL; |
6224f72b GS |
2417 | } |
2418 | ||
954c1994 | 2419 | /* |
ccfc67b7 JH |
2420 | =head1 Hash Manipulation Functions |
2421 | ||
954c1994 GS |
2422 | =for apidoc p||get_hv |
2423 | ||
2424 | Returns the HV of the specified Perl hash. If C<create> is set and the | |
2425 | Perl variable does not exist then it will be created. If C<create> is not | |
2426 | set and the variable does not exist then NULL is returned. | |
2427 | ||
2428 | =cut | |
2429 | */ | |
2430 | ||
6224f72b | 2431 | HV* |
864dbfa3 | 2432 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 2433 | { |
890ce7af | 2434 | GV* const gv = gv_fetchpv(name, create, SVt_PVHV); |
a0d0e21e LW |
2435 | if (create) |
2436 | return GvHVn(gv); | |
2437 | if (gv) | |
2438 | return GvHV(gv); | |
5c284bb0 | 2439 | return NULL; |
a0d0e21e LW |
2440 | } |
2441 | ||
954c1994 | 2442 | /* |
ccfc67b7 JH |
2443 | =head1 CV Manipulation Functions |
2444 | ||
954c1994 GS |
2445 | =for apidoc p||get_cv |
2446 | ||
2447 | Returns the CV of the specified Perl subroutine. If C<create> is set and | |
2448 | the Perl subroutine does not exist then it will be declared (which has the | |
2449 | same effect as saying C<sub name;>). If C<create> is not set and the | |
2450 | subroutine does not exist then NULL is returned. | |
2451 | ||
2452 | =cut | |
2453 | */ | |
2454 | ||
a0d0e21e | 2455 | CV* |
864dbfa3 | 2456 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e | 2457 | { |
c4420975 | 2458 | GV* const gv = gv_fetchpv(name, create, SVt_PVCV); |
b099ddc0 | 2459 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 GS |
2460 | /* XXX this is probably not what they think they're getting. |
2461 | * It has the same effect as "sub name;", i.e. just a forward | |
2462 | * declaration! */ | |
8ebc5c01 | 2463 | if (create && !GvCVu(gv)) |
774d564b | 2464 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 2465 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
5f66b61c | 2466 | NULL, NULL); |
a0d0e21e | 2467 | if (gv) |
8ebc5c01 | 2468 | return GvCVu(gv); |
601f1833 | 2469 | return NULL; |
a0d0e21e LW |
2470 | } |
2471 | ||
79072805 LW |
2472 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2473 | ||
954c1994 | 2474 | /* |
ccfc67b7 JH |
2475 | |
2476 | =head1 Callback Functions | |
2477 | ||
954c1994 GS |
2478 | =for apidoc p||call_argv |
2479 | ||
2480 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2481 | ||
2482 | =cut | |
2483 | */ | |
2484 | ||
a0d0e21e | 2485 | I32 |
8f42b153 | 2486 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 2487 | |
8ac85365 NIS |
2488 | /* See G_* flags in cop.h */ |
2489 | /* null terminated arg list */ | |
8990e307 | 2490 | { |
97aff369 | 2491 | dVAR; |
a0d0e21e | 2492 | dSP; |
8990e307 | 2493 | |
924508f0 | 2494 | PUSHMARK(SP); |
a0d0e21e | 2495 | if (argv) { |
8990e307 | 2496 | while (*argv) { |
a0d0e21e | 2497 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
2498 | argv++; |
2499 | } | |
a0d0e21e | 2500 | PUTBACK; |
8990e307 | 2501 | } |
864dbfa3 | 2502 | return call_pv(sub_name, flags); |
8990e307 LW |
2503 | } |
2504 | ||
954c1994 GS |
2505 | /* |
2506 | =for apidoc p||call_pv | |
2507 | ||
2508 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2509 | ||
2510 | =cut | |
2511 | */ | |
2512 | ||
a0d0e21e | 2513 | I32 |
864dbfa3 | 2514 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2515 | /* name of the subroutine */ |
2516 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2517 | { |
864dbfa3 | 2518 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
2519 | } |
2520 | ||
954c1994 GS |
2521 | /* |
2522 | =for apidoc p||call_method | |
2523 | ||
2524 | Performs a callback to the specified Perl method. The blessed object must | |
2525 | be on the stack. See L<perlcall>. | |
2526 | ||
2527 | =cut | |
2528 | */ | |
2529 | ||
a0d0e21e | 2530 | I32 |
864dbfa3 | 2531 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2532 | /* name of the subroutine */ |
2533 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2534 | { |
968b3946 | 2535 | return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); |
a0d0e21e LW |
2536 | } |
2537 | ||
2538 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2539 | /* |
2540 | =for apidoc p||call_sv | |
2541 | ||
2542 | Performs a callback to the Perl sub whose name is in the SV. See | |
2543 | L<perlcall>. | |
2544 | ||
2545 | =cut | |
2546 | */ | |
2547 | ||
a0d0e21e | 2548 | I32 |
864dbfa3 | 2549 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 | 2550 | /* See G_* flags in cop.h */ |
a0d0e21e | 2551 | { |
27da23d5 | 2552 | dVAR; dSP; |
a0d0e21e | 2553 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 2554 | UNOP method_op; |
aa689395 | 2555 | I32 oldmark; |
13689cfe | 2556 | volatile I32 retval = 0; |
a0d0e21e | 2557 | I32 oldscope; |
54310121 | 2558 | bool oldcatch = CATCH_GET; |
6224f72b | 2559 | int ret; |
c4420975 | 2560 | OP* const oldop = PL_op; |
db36c5a1 | 2561 | dJMPENV; |
1e422769 | 2562 | |
a0d0e21e LW |
2563 | if (flags & G_DISCARD) { |
2564 | ENTER; | |
2565 | SAVETMPS; | |
2566 | } | |
2567 | ||
aa689395 | 2568 | Zero(&myop, 1, LOGOP); |
5f66b61c | 2569 | myop.op_next = NULL; |
f51d4af5 | 2570 | if (!(flags & G_NOARGS)) |
aa689395 | 2571 | myop.op_flags |= OPf_STACKED; |
54310121 | 2572 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2573 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2574 | OPf_WANT_SCALAR); | |
462e5cf6 | 2575 | SAVEOP(); |
533c011a | 2576 | PL_op = (OP*)&myop; |
aa689395 | 2577 | |
3280af22 NIS |
2578 | EXTEND(PL_stack_sp, 1); |
2579 | *++PL_stack_sp = sv; | |
aa689395 | 2580 | oldmark = TOPMARK; |
3280af22 | 2581 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2582 | |
3280af22 | 2583 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2584 | /* Handle first BEGIN of -d. */ |
3280af22 | 2585 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2586 | /* Try harder, since this may have been a sighandler, thus |
2587 | * curstash may be meaningless. */ | |
3280af22 | 2588 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 2589 | && !(flags & G_NODEBUG)) |
533c011a | 2590 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2591 | |
968b3946 GS |
2592 | if (flags & G_METHOD) { |
2593 | Zero(&method_op, 1, UNOP); | |
2594 | method_op.op_next = PL_op; | |
2595 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
2596 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; | |
f39d0b86 | 2597 | PL_op = (OP*)&method_op; |
968b3946 GS |
2598 | } |
2599 | ||
312caa8e | 2600 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2601 | CATCH_SET(TRUE); |
14dd3ad8 | 2602 | call_body((OP*)&myop, FALSE); |
312caa8e | 2603 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2604 | CATCH_SET(oldcatch); |
312caa8e CS |
2605 | } |
2606 | else { | |
d78bda3d | 2607 | myop.op_other = (OP*)&myop; |
3280af22 | 2608 | PL_markstack_ptr--; |
edb2152a | 2609 | create_eval_scope(flags|G_FAKINGEVAL); |
3280af22 | 2610 | PL_markstack_ptr++; |
a0d0e21e | 2611 | |
14dd3ad8 | 2612 | JMPENV_PUSH(ret); |
edb2152a | 2613 | |
6224f72b GS |
2614 | switch (ret) { |
2615 | case 0: | |
14dd3ad8 GS |
2616 | redo_body: |
2617 | call_body((OP*)&myop, FALSE); | |
312caa8e CS |
2618 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2619 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2620 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 2621 | break; |
6224f72b | 2622 | case 1: |
f86702cc | 2623 | STATUS_ALL_FAILURE; |
a0d0e21e | 2624 | /* FALL THROUGH */ |
6224f72b | 2625 | case 2: |
a0d0e21e | 2626 | /* my_exit() was called */ |
3280af22 | 2627 | PL_curstash = PL_defstash; |
a0d0e21e | 2628 | FREETMPS; |
14dd3ad8 | 2629 | JMPENV_POP; |
cc3604b1 | 2630 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2631 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2632 | my_exit_jump(); |
a0d0e21e | 2633 | /* NOTREACHED */ |
6224f72b | 2634 | case 3: |
3280af22 | 2635 | if (PL_restartop) { |
533c011a | 2636 | PL_op = PL_restartop; |
3280af22 | 2637 | PL_restartop = 0; |
312caa8e | 2638 | goto redo_body; |
a0d0e21e | 2639 | } |
3280af22 | 2640 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2641 | if (flags & G_ARRAY) |
2642 | retval = 0; | |
2643 | else { | |
2644 | retval = 1; | |
3280af22 | 2645 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2646 | } |
312caa8e | 2647 | break; |
a0d0e21e | 2648 | } |
a0d0e21e | 2649 | |
edb2152a NC |
2650 | if (PL_scopestack_ix > oldscope) |
2651 | delete_eval_scope(); | |
14dd3ad8 | 2652 | JMPENV_POP; |
a0d0e21e | 2653 | } |
1e422769 | 2654 | |
a0d0e21e | 2655 | if (flags & G_DISCARD) { |
3280af22 | 2656 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2657 | retval = 0; |
2658 | FREETMPS; | |
2659 | LEAVE; | |
2660 | } | |
533c011a | 2661 | PL_op = oldop; |
a0d0e21e LW |
2662 | return retval; |
2663 | } | |
2664 | ||
312caa8e | 2665 | STATIC void |
dd374669 | 2666 | S_call_body(pTHX_ const OP *myop, bool is_eval) |
312caa8e | 2667 | { |
97aff369 | 2668 | dVAR; |
312caa8e CS |
2669 | if (PL_op == myop) { |
2670 | if (is_eval) | |
f807eda9 | 2671 | PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */ |
312caa8e | 2672 | else |
f807eda9 | 2673 | PL_op = Perl_pp_entersub(aTHX); /* this does */ |
312caa8e CS |
2674 | } |
2675 | if (PL_op) | |
cea2e8a9 | 2676 | CALLRUNOPS(aTHX); |
312caa8e CS |
2677 | } |
2678 | ||
6e72f9df | 2679 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2680 | |
954c1994 GS |
2681 | /* |
2682 | =for apidoc p||eval_sv | |
2683 | ||
2684 | Tells Perl to C<eval> the string in the SV. | |
2685 | ||
2686 | =cut | |
2687 | */ | |
2688 | ||
a0d0e21e | 2689 | I32 |
864dbfa3 | 2690 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2691 | |
8ac85365 | 2692 | /* See G_* flags in cop.h */ |
a0d0e21e | 2693 | { |
97aff369 | 2694 | dVAR; |
924508f0 | 2695 | dSP; |
a0d0e21e | 2696 | UNOP myop; /* fake syntax tree node */ |
8fa7f367 | 2697 | volatile I32 oldmark = SP - PL_stack_base; |
13689cfe | 2698 | volatile I32 retval = 0; |
6224f72b | 2699 | int ret; |
c4420975 | 2700 | OP* const oldop = PL_op; |
db36c5a1 | 2701 | dJMPENV; |
84902520 | 2702 | |
4633a7c4 LW |
2703 | if (flags & G_DISCARD) { |
2704 | ENTER; | |
2705 | SAVETMPS; | |
2706 | } | |
2707 | ||
462e5cf6 | 2708 | SAVEOP(); |
533c011a NIS |
2709 | PL_op = (OP*)&myop; |
2710 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2711 | EXTEND(PL_stack_sp, 1); |
2712 | *++PL_stack_sp = sv; | |
79072805 | 2713 | |
4633a7c4 LW |
2714 | if (!(flags & G_NOARGS)) |
2715 | myop.op_flags = OPf_STACKED; | |
5f66b61c | 2716 | myop.op_next = NULL; |
6e72f9df | 2717 | myop.op_type = OP_ENTEREVAL; |
54310121 | 2718 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2719 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2720 | OPf_WANT_SCALAR); | |
6e72f9df | 2721 | if (flags & G_KEEPERR) |
2722 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2723 | |
dedbcade DM |
2724 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2725 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2726 | TAINT_PROPER("eval_sv()"); | |
2727 | ||
14dd3ad8 | 2728 | JMPENV_PUSH(ret); |
6224f72b GS |
2729 | switch (ret) { |
2730 | case 0: | |
14dd3ad8 GS |
2731 | redo_body: |
2732 | call_body((OP*)&myop,TRUE); | |
312caa8e CS |
2733 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2734 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2735 | sv_setpvn(ERRSV,"",0); |
4633a7c4 | 2736 | break; |
6224f72b | 2737 | case 1: |
f86702cc | 2738 | STATUS_ALL_FAILURE; |
4633a7c4 | 2739 | /* FALL THROUGH */ |
6224f72b | 2740 | case 2: |
4633a7c4 | 2741 | /* my_exit() was called */ |
3280af22 | 2742 | PL_curstash = PL_defstash; |
4633a7c4 | 2743 | FREETMPS; |
14dd3ad8 | 2744 | JMPENV_POP; |
cc3604b1 | 2745 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2746 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2747 | my_exit_jump(); |
4633a7c4 | 2748 | /* NOTREACHED */ |
6224f72b | 2749 | case 3: |
3280af22 | 2750 | if (PL_restartop) { |
533c011a | 2751 | PL_op = PL_restartop; |
3280af22 | 2752 | PL_restartop = 0; |
312caa8e | 2753 | goto redo_body; |
4633a7c4 | 2754 | } |
3280af22 | 2755 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2756 | if (flags & G_ARRAY) |
2757 | retval = 0; | |
2758 | else { | |
2759 | retval = 1; | |
3280af22 | 2760 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2761 | } |
312caa8e | 2762 | break; |
4633a7c4 LW |
2763 | } |
2764 | ||
14dd3ad8 | 2765 | JMPENV_POP; |
4633a7c4 | 2766 | if (flags & G_DISCARD) { |
3280af22 | 2767 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2768 | retval = 0; |
2769 | FREETMPS; | |
2770 | LEAVE; | |
2771 | } | |
533c011a | 2772 | PL_op = oldop; |
4633a7c4 LW |
2773 | return retval; |
2774 | } | |
2775 | ||
954c1994 GS |
2776 | /* |
2777 | =for apidoc p||eval_pv | |
2778 | ||
2779 | Tells Perl to C<eval> the given string and return an SV* result. | |
2780 | ||
2781 | =cut | |
2782 | */ | |
2783 | ||
137443ea | 2784 | SV* |
864dbfa3 | 2785 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2786 | { |
97aff369 | 2787 | dVAR; |
137443ea | 2788 | dSP; |
2789 | SV* sv = newSVpv(p, 0); | |
2790 | ||
864dbfa3 | 2791 | eval_sv(sv, G_SCALAR); |
137443ea | 2792 | SvREFCNT_dec(sv); |
2793 | ||
2794 | SPAGAIN; | |
2795 | sv = POPs; | |
2796 | PUTBACK; | |
2797 | ||
2d8e6c8d | 2798 | if (croak_on_error && SvTRUE(ERRSV)) { |
0510663f | 2799 | Perl_croak(aTHX_ SvPVx_nolen_const(ERRSV)); |
2d8e6c8d | 2800 | } |
137443ea | 2801 | |
2802 | return sv; | |
2803 | } | |
2804 | ||
4633a7c4 LW |
2805 | /* Require a module. */ |
2806 | ||
954c1994 | 2807 | /* |
ccfc67b7 JH |
2808 | =head1 Embedding Functions |
2809 | ||
954c1994 GS |
2810 | =for apidoc p||require_pv |
2811 | ||
7d3fb230 BS |
2812 | Tells Perl to C<require> the file named by the string argument. It is |
2813 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2814 | implemented that way; consider using load_module instead. |
954c1994 | 2815 | |
7d3fb230 | 2816 | =cut */ |
954c1994 | 2817 | |
4633a7c4 | 2818 | void |
864dbfa3 | 2819 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2820 | { |
97aff369 | 2821 | dVAR; |
d3acc0f7 | 2822 | dSP; |
97aff369 | 2823 | SV* sv; |
e788e7d3 | 2824 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 | 2825 | PUTBACK; |
be41e5d9 NC |
2826 | sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); |
2827 | eval_sv(sv_2mortal(sv), G_DISCARD); | |
d3acc0f7 JP |
2828 | SPAGAIN; |
2829 | POPSTACK; | |
79072805 LW |
2830 | } |
2831 | ||
79072805 | 2832 | void |
e1ec3a88 | 2833 | Perl_magicname(pTHX_ const char *sym, const char *name, I32 namlen) |
79072805 | 2834 | { |
71315bf2 | 2835 | register GV * const gv = gv_fetchpv(sym, GV_ADD, SVt_PV); |
79072805 | 2836 | |
c4420975 | 2837 | if (gv) |
14befaf4 | 2838 | sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen); |
79072805 LW |
2839 | } |
2840 | ||
76e3520e | 2841 | STATIC void |
e1ec3a88 | 2842 | S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2843 | { |
ab821d7f | 2844 | /* This message really ought to be max 23 lines. |
75c72d73 | 2845 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2846 | |
27da23d5 | 2847 | static const char * const usage_msg[] = { |
aefc56c5 SF |
2848 | "-0[octal] specify record separator (\\0, if no argument)", |
2849 | "-A[mod][=pattern] activate all/given assertions", | |
2850 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
2851 | "-C[number/list] enables the listed Unicode features", | |
2852 | "-c check syntax only (runs BEGIN and CHECK blocks)", | |
2853 | "-d[:debugger] run program under debugger", | |
2854 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
2855 | "-e program one line of program (several -e's allowed, omit programfile)", | |
bc9b29db | 2856 | "-E program like -e, but enables all optional features", |
aefc56c5 | 2857 | "-f don't do $sitelib/sitecustomize.pl at startup", |
aefc56c5 SF |
2858 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
2859 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
2860 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
2861 | "-l[octal] enable line ending processing, specifies line terminator", | |
2862 | "-[mM][-]module execute \"use/no module...\" before executing program", | |
2863 | "-n assume \"while (<>) { ... }\" loop around program", | |
2864 | "-p assume loop like -n but print line also, like sed", | |
2865 | "-P run program through C preprocessor before compilation", | |
2866 | "-s enable rudimentary parsing for switches after programfile", | |
2867 | "-S look for programfile using PATH environment variable", | |
2868 | "-t enable tainting warnings", | |
2869 | "-T enable tainting checks", | |
2870 | "-u dump core after parsing program", | |
2871 | "-U allow unsafe operations", | |
2872 | "-v print version, subversion (includes VERY IMPORTANT perl info)", | |
2873 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
2874 | "-w enable many useful warnings (RECOMMENDED)", | |
2875 | "-W enable all warnings", | |
2876 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", | |
2877 | "-X disable all warnings", | |
fb73857a | 2878 | "\n", |
2879 | NULL | |
2880 | }; | |
27da23d5 | 2881 | const char * const *p = usage_msg; |
fb73857a | 2882 | |
b0e47665 GS |
2883 | PerlIO_printf(PerlIO_stdout(), |
2884 | "\nUsage: %s [switches] [--] [programfile] [arguments]", | |
2885 | name); | |
fb73857a | 2886 | while (*p) |
b0e47665 | 2887 | PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); |
4633a7c4 LW |
2888 | } |
2889 | ||
b4ab917c DM |
2890 | /* convert a string of -D options (or digits) into an int. |
2891 | * sets *s to point to the char after the options */ | |
2892 | ||
2893 | #ifdef DEBUGGING | |
2894 | int | |
e1ec3a88 | 2895 | Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) |
b4ab917c | 2896 | { |
27da23d5 | 2897 | static const char * const usage_msgd[] = { |
e6e64d9b JC |
2898 | " Debugging flag values: (see also -d)", |
2899 | " p Tokenizing and parsing (with v, displays parse stack)", | |
3679267a | 2900 | " s Stack snapshots (with v, displays all stacks)", |
e6e64d9b JC |
2901 | " l Context (loop) stack processing", |
2902 | " t Trace execution", | |
2903 | " o Method and overloading resolution", | |
2904 | " c String/numeric conversions", | |
2905 | " P Print profiling info, preprocessor command for -P, source file input state", | |
2906 | " m Memory allocation", | |
2907 | " f Format processing", | |
2908 | " r Regular expression parsing and execution", | |
2909 | " x Syntax tree dump", | |
3679267a | 2910 | " u Tainting checks", |
e6e64d9b JC |
2911 | " H Hash dump -- usurps values()", |
2912 | " X Scratchpad allocation", | |
2913 | " D Cleaning up", | |
2914 | " S Thread synchronization", | |
2915 | " T Tokenising", | |
2916 | " R Include reference counts of dumped variables (eg when using -Ds)", | |
2917 | " J Do not s,t,P-debug (Jump over) opcodes within package DB", | |
2918 | " v Verbose: use in conjunction with other flags", | |
2919 | " C Copy On Write", | |
2920 | " A Consistency checks on internal structures", | |
3679267a | 2921 | " q quiet - currently only suppresses the 'EXECUTING' message", |
e6e64d9b JC |
2922 | NULL |
2923 | }; | |
b4ab917c DM |
2924 | int i = 0; |
2925 | if (isALPHA(**s)) { | |
2926 | /* if adding extra options, remember to update DEBUG_MASK */ | |
bfed75c6 | 2927 | static const char debopts[] = "psltocPmfrxu HXDSTRJvCAq"; |
b4ab917c DM |
2928 | |
2929 | for (; isALNUM(**s); (*s)++) { | |
c4420975 | 2930 | const char * const d = strchr(debopts,**s); |
b4ab917c DM |
2931 | if (d) |
2932 | i |= 1 << (d - debopts); | |
2933 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
2934 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
2935 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
2936 | } |
2937 | } | |
e6e64d9b | 2938 | else if (isDIGIT(**s)) { |
b4ab917c DM |
2939 | i = atoi(*s); |
2940 | for (; isALNUM(**s); (*s)++) ; | |
2941 | } | |
ddcf8bc1 | 2942 | else if (givehelp) { |
06e869a4 | 2943 | const char *const *p = usage_msgd; |
e6e64d9b JC |
2944 | while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); |
2945 | } | |
b4ab917c DM |
2946 | # ifdef EBCDIC |
2947 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
2948 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
2949 | "-Dp not implemented on this platform\n"); | |
2950 | # endif | |
2951 | return i; | |
2952 | } | |
2953 | #endif | |
2954 | ||
79072805 LW |
2955 | /* This routine handles any switches that can be given during run */ |
2956 | ||
2957 | char * | |
97bd5664 | 2958 | Perl_moreswitches(pTHX_ char *s) |
79072805 | 2959 | { |
27da23d5 | 2960 | dVAR; |
84c133a0 | 2961 | UV rschar; |
79072805 LW |
2962 | |
2963 | switch (*s) { | |
2964 | case '0': | |
a863c7d1 | 2965 | { |
f2095865 | 2966 | I32 flags = 0; |
a3b680e6 | 2967 | STRLEN numlen; |
f2095865 JH |
2968 | |
2969 | SvREFCNT_dec(PL_rs); | |
2970 | if (s[1] == 'x' && s[2]) { | |
a3b680e6 | 2971 | const char *e = s+=2; |
f2095865 JH |
2972 | U8 *tmps; |
2973 | ||
a3b680e6 AL |
2974 | while (*e) |
2975 | e++; | |
f2095865 JH |
2976 | numlen = e - s; |
2977 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
2978 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
2979 | if (s + numlen < e) { | |
2980 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
2981 | numlen = 0; | |
2982 | s--; | |
2983 | } | |
396482e1 | 2984 | PL_rs = newSVpvs(""); |
c5661c80 | 2985 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
2986 | tmps = (U8*)SvPVX(PL_rs); |
2987 | uvchr_to_utf8(tmps, rschar); | |
2988 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
2989 | SvUTF8_on(PL_rs); | |
2990 | } | |
2991 | else { | |
2992 | numlen = 4; | |
2993 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
2994 | if (rschar & ~((U8)~0)) | |
2995 | PL_rs = &PL_sv_undef; | |
2996 | else if (!rschar && numlen >= 2) | |
396482e1 | 2997 | PL_rs = newSVpvs(""); |
f2095865 JH |
2998 | else { |
2999 | char ch = (char)rschar; | |
3000 | PL_rs = newSVpvn(&ch, 1); | |
3001 | } | |
3002 | } | |
800633c3 | 3003 | sv_setsv(get_sv("/", TRUE), PL_rs); |
f2095865 | 3004 | return s + numlen; |
a863c7d1 | 3005 | } |
46487f74 | 3006 | case 'C': |
a05d7ebb | 3007 | s++; |
dd374669 | 3008 | PL_unicode = parse_unicode_opts( (const char **)&s ); |
46487f74 | 3009 | return s; |
2304df62 | 3010 | case 'F': |
3280af22 | 3011 | PL_minus_F = TRUE; |
ebce5377 RGS |
3012 | PL_splitstr = ++s; |
3013 | while (*s && !isSPACE(*s)) ++s; | |
e49e380e | 3014 | PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr); |
2304df62 | 3015 | return s; |
79072805 | 3016 | case 'a': |
3280af22 | 3017 | PL_minus_a = TRUE; |
79072805 LW |
3018 | s++; |
3019 | return s; | |
3020 | case 'c': | |
3280af22 | 3021 | PL_minus_c = TRUE; |
79072805 LW |
3022 | s++; |
3023 | return s; | |
3024 | case 'd': | |
97bd5664 | 3025 | forbid_setid('d', -1); |
4633a7c4 | 3026 | s++; |
2cbb2ee1 RGS |
3027 | |
3028 | /* -dt indicates to the debugger that threads will be used */ | |
3029 | if (*s == 't' && !isALNUM(s[1])) { | |
3030 | ++s; | |
3031 | my_setenv("PERL5DB_THREADED", "1"); | |
3032 | } | |
3033 | ||
70c94a19 RR |
3034 | /* The following permits -d:Mod to accepts arguments following an = |
3035 | in the fashion that -MSome::Mod does. */ | |
3036 | if (*s == ':' || *s == '=') { | |
06b5626a | 3037 | const char *start; |
396482e1 | 3038 | SV * const sv = newSVpvs("use Devel::"); |
70c94a19 RR |
3039 | start = ++s; |
3040 | /* We now allow -d:Module=Foo,Bar */ | |
3041 | while(isALNUM(*s) || *s==':') ++s; | |
3042 | if (*s != '=') | |
3043 | sv_catpv(sv, start); | |
3044 | else { | |
3045 | sv_catpvn(sv, start, s-start); | |
95a2b409 RGS |
3046 | /* Don't use NUL as q// delimiter here, this string goes in the |
3047 | * environment. */ | |
3048 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s); | |
70c94a19 | 3049 | } |
4633a7c4 | 3050 | s += strlen(s); |
184f32ec | 3051 | my_setenv("PERL5DB", SvPV_nolen_const(sv)); |
4633a7c4 | 3052 | } |
ed094faf | 3053 | if (!PL_perldb) { |
3280af22 | 3054 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 3055 | init_debugger(); |
ed094faf | 3056 | } |
79072805 LW |
3057 | return s; |
3058 | case 'D': | |
0453d815 | 3059 | { |
79072805 | 3060 | #ifdef DEBUGGING |
97bd5664 | 3061 | forbid_setid('D', -1); |
b4ab917c | 3062 | s++; |
dd374669 | 3063 | PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 3064 | #else /* !DEBUGGING */ |
0453d815 | 3065 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 3066 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 3067 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 3068 | for (s++; isALNUM(*s); s++) ; |
79072805 | 3069 | #endif |
79072805 | 3070 | return s; |
0453d815 | 3071 | } |
4633a7c4 | 3072 | case 'h': |
ac27b0f5 | 3073 | usage(PL_origargv[0]); |
7ca617d0 | 3074 | my_exit(0); |
79072805 | 3075 | case 'i': |
43c5f42d | 3076 | Safefree(PL_inplace); |
c030f24b GH |
3077 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
3078 | if (*(s+1) == '\0') { | |
c86a4f2e | 3079 | PL_inplace = savepvs(".bak"); |
c030f24b GH |
3080 | return s+1; |
3081 | } | |
3082 | #endif /* __CYGWIN__ */ | |
5ef5d758 | 3083 | { |
d4c19fe8 | 3084 | const char * const start = ++s; |
5ef5d758 NC |
3085 | while (*s && !isSPACE(*s)) |
3086 | ++s; | |
3087 | ||
3088 | PL_inplace = savepvn(start, s - start); | |
3089 | } | |
7b8d334a | 3090 | if (*s) { |
5ef5d758 | 3091 | ++s; |
7b8d334a | 3092 | if (*s == '-') /* Additional switches on #! line. */ |
5ef5d758 | 3093 | s++; |
7b8d334a | 3094 | } |
fb73857a | 3095 | return s; |
4e49a025 | 3096 | case 'I': /* -I handled both here and in parse_body() */ |
97bd5664 | 3097 | forbid_setid('I', -1); |
fb73857a | 3098 | ++s; |
3099 | while (*s && isSPACE(*s)) | |
3100 | ++s; | |
3101 | if (*s) { | |
774d564b | 3102 | char *e, *p; |
0df16ed7 GS |
3103 | p = s; |
3104 | /* ignore trailing spaces (possibly followed by other switches) */ | |
3105 | do { | |
3106 | for (e = p; *e && !isSPACE(*e); e++) ; | |
3107 | p = e; | |
3108 | while (isSPACE(*p)) | |
3109 | p++; | |
3110 | } while (*p && *p != '-'); | |
3111 | e = savepvn(s, e-s); | |
88fe16b2 | 3112 | incpush(e, TRUE, TRUE, FALSE, FALSE); |
0df16ed7 GS |
3113 | Safefree(e); |
3114 | s = p; | |
3115 | if (*s == '-') | |
3116 | s++; | |
79072805 LW |
3117 | } |
3118 | else | |
a67e862a | 3119 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 3120 | return s; |
79072805 | 3121 | case 'l': |
3280af22 | 3122 | PL_minus_l = TRUE; |
79072805 | 3123 | s++; |
7889fe52 NIS |
3124 | if (PL_ors_sv) { |
3125 | SvREFCNT_dec(PL_ors_sv); | |
a0714e2c | 3126 | PL_ors_sv = NULL; |
7889fe52 | 3127 | } |
79072805 | 3128 | if (isDIGIT(*s)) { |
53305cf1 | 3129 | I32 flags = 0; |
a3b680e6 | 3130 | STRLEN numlen; |
396482e1 | 3131 | PL_ors_sv = newSVpvs("\n"); |
53305cf1 NC |
3132 | numlen = 3 + (*s == '0'); |
3133 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3134 | s += numlen; |
3135 | } | |
3136 | else { | |
8bfdd7d9 | 3137 | if (RsPARA(PL_rs)) { |
396482e1 | 3138 | PL_ors_sv = newSVpvs("\n\n"); |
7889fe52 NIS |
3139 | } |
3140 | else { | |
8bfdd7d9 | 3141 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3142 | } |
79072805 LW |
3143 | } |
3144 | return s; | |
06492da6 | 3145 | case 'A': |
97bd5664 | 3146 | forbid_setid('A', -1); |
930366bd RGS |
3147 | if (!PL_preambleav) |
3148 | PL_preambleav = newAV(); | |
aefc56c5 SF |
3149 | s++; |
3150 | { | |
44f8325f | 3151 | char * const start = s; |
396482e1 | 3152 | SV * const sv = newSVpvs("use assertions::activate"); |
aefc56c5 SF |
3153 | while(isALNUM(*s) || *s == ':') ++s; |
3154 | if (s != start) { | |
396482e1 | 3155 | sv_catpvs(sv, "::"); |
aefc56c5 SF |
3156 | sv_catpvn(sv, start, s-start); |
3157 | } | |
3158 | if (*s == '=') { | |
0c5a913d | 3159 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q%c%s%c)", 0, ++s, 0); |
aefc56c5 SF |
3160 | s+=strlen(s); |
3161 | } | |
3162 | else if (*s != '\0') { | |
551405c4 | 3163 | Perl_croak(aTHX_ "Can't use '%c' after -A%.*s", *s, (int)(s-start), start); |
aefc56c5 | 3164 | } |
06492da6 | 3165 | av_push(PL_preambleav, sv); |
aefc56c5 | 3166 | return s; |
06492da6 | 3167 | } |
1a30305b | 3168 | case 'M': |
97bd5664 | 3169 | forbid_setid('M', -1); /* XXX ? */ |
1a30305b | 3170 | /* FALL THROUGH */ |
3171 | case 'm': | |
97bd5664 | 3172 | forbid_setid('m', -1); /* XXX ? */ |
1a30305b | 3173 | if (*++s) { |
a5f75d66 | 3174 | char *start; |
11343788 | 3175 | SV *sv; |
e1ec3a88 | 3176 | const char *use = "use "; |
a5f75d66 | 3177 | /* -M-foo == 'no foo' */ |
d0043bd1 NC |
3178 | /* Leading space on " no " is deliberate, to make both |
3179 | possibilities the same length. */ | |
3180 | if (*s == '-') { use = " no "; ++s; } | |
3181 | sv = newSVpvn(use,4); | |
a5f75d66 | 3182 | start = s; |
1a30305b | 3183 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 3184 | while(isALNUM(*s) || *s==':') ++s; |
3185 | if (*s != '=') { | |
11343788 | 3186 | sv_catpv(sv, start); |
c07a80fd | 3187 | if (*(start-1) == 'm') { |
3188 | if (*s != '\0') | |
cea2e8a9 | 3189 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
396482e1 | 3190 | sv_catpvs( sv, " ()"); |
c07a80fd | 3191 | } |
3192 | } else { | |
6df41af2 | 3193 | if (s == start) |
be98fb35 GS |
3194 | Perl_croak(aTHX_ "Module name required with -%c option", |
3195 | s[-1]); | |
11343788 | 3196 | sv_catpvn(sv, start, s-start); |
396482e1 GA |
3197 | sv_catpvs(sv, " split(/,/,q"); |
3198 | sv_catpvs(sv, "\0"); /* Use NUL as q//-delimiter. */ | |
11343788 | 3199 | sv_catpv(sv, ++s); |
396482e1 | 3200 | sv_catpvs(sv, "\0)"); |
c07a80fd | 3201 | } |
1a30305b | 3202 | s += strlen(s); |
5c831c24 | 3203 | if (!PL_preambleav) |
3280af22 NIS |
3204 | PL_preambleav = newAV(); |
3205 | av_push(PL_preambleav, sv); | |
1a30305b | 3206 | } |
3207 | else | |
9e81e6a1 | 3208 | Perl_croak(aTHX_ "Missing argument to -%c", *(s-1)); |
1a30305b | 3209 | return s; |
79072805 | 3210 | case 'n': |
3280af22 | 3211 | PL_minus_n = TRUE; |
79072805 LW |
3212 | s++; |
3213 | return s; | |
3214 | case 'p': | |
3280af22 | 3215 | PL_minus_p = TRUE; |
79072805 LW |
3216 | s++; |
3217 | return s; | |
3218 | case 's': | |
97bd5664 | 3219 | forbid_setid('s', -1); |
3280af22 | 3220 | PL_doswitches = TRUE; |
79072805 LW |
3221 | s++; |
3222 | return s; | |
6537fe72 MS |
3223 | case 't': |
3224 | if (!PL_tainting) | |
22f7c9c9 | 3225 | TOO_LATE_FOR('t'); |
6537fe72 MS |
3226 | s++; |
3227 | return s; | |
463ee0b2 | 3228 | case 'T': |
3280af22 | 3229 | if (!PL_tainting) |
22f7c9c9 | 3230 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
3231 | s++; |
3232 | return s; | |
79072805 | 3233 | case 'u': |
bf4acbe4 GS |
3234 | #ifdef MACOS_TRADITIONAL |
3235 | Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); | |
3236 | #endif | |
3280af22 | 3237 | PL_do_undump = TRUE; |
79072805 LW |
3238 | s++; |
3239 | return s; | |
3240 | case 'U': | |
3280af22 | 3241 | PL_unsafe = TRUE; |
79072805 LW |
3242 | s++; |
3243 | return s; | |
3244 | case 'v': | |
d7aa5382 | 3245 | if (!sv_derived_from(PL_patchlevel, "version")) |
7a5b473e | 3246 | upg_version(PL_patchlevel); |
8e9464f1 | 3247 | #if !defined(DGUX) |
b0e47665 | 3248 | PerlIO_printf(PerlIO_stdout(), |
7850f74c GA |
3249 | Perl_form(aTHX_ "\nThis is perl, %"SVf |
3250 | #ifdef PERL_PATCHNUM | |
3251 | " DEVEL" STRINGIFY(PERL_PATCHNUM) | |
3252 | #endif | |
3253 | " built for %s", | |
d7aa5382 JP |
3254 | vstringify(PL_patchlevel), |
3255 | ARCHNAME)); | |
8e9464f1 JH |
3256 | #else /* DGUX */ |
3257 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
3258 | PerlIO_printf(PerlIO_stdout(), | |
52ea0aec | 3259 | Perl_form(aTHX_ "\nThis is perl, %"SVf"\n", |
d7aa5382 | 3260 | vstringify(PL_patchlevel))); |
8e9464f1 JH |
3261 | PerlIO_printf(PerlIO_stdout(), |
3262 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
3263 | OSNAME, __DATE__, __TIME__)); | |
3264 | PerlIO_printf(PerlIO_stdout(), | |
3265 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 3266 | OSVERS)); |
8e9464f1 JH |
3267 | #endif /* !DGUX */ |
3268 | ||
fb73857a | 3269 | #if defined(LOCAL_PATCH_COUNT) |
3270 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
3271 | PerlIO_printf(PerlIO_stdout(), |
3272 | "\n(with %d registered patch%s, " | |
3273 | "see perl -V for more detail)", | |
3274 | (int)LOCAL_PATCH_COUNT, | |
3275 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); | |
a5f75d66 | 3276 | #endif |
1a30305b | 3277 | |
b0e47665 | 3278 | PerlIO_printf(PerlIO_stdout(), |
3246d7a3 | 3279 | "\n\nCopyright 1987-2006, Larry Wall\n"); |
eae9c151 JH |
3280 | #ifdef MACOS_TRADITIONAL |
3281 | PerlIO_printf(PerlIO_stdout(), | |
be3c0a43 | 3282 | "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" |
03765510 | 3283 | "maintained by Chris Nandor\n"); |
eae9c151 | 3284 | #endif |
79072805 | 3285 | #ifdef MSDOS |
b0e47665 GS |
3286 | PerlIO_printf(PerlIO_stdout(), |
3287 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 3288 | #endif |
3289 | #ifdef DJGPP | |
b0e47665 GS |
3290 | PerlIO_printf(PerlIO_stdout(), |
3291 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
3292 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 3293 | #endif |
79072805 | 3294 | #ifdef OS2 |
b0e47665 GS |
3295 | PerlIO_printf(PerlIO_stdout(), |
3296 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 3297 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 3298 | #endif |
79072805 | 3299 | #ifdef atarist |
b0e47665 GS |
3300 | PerlIO_printf(PerlIO_stdout(), |
3301 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 3302 | #endif |
a3f9223b | 3303 | #ifdef __BEOS__ |
b0e47665 GS |
3304 | PerlIO_printf(PerlIO_stdout(), |
3305 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 3306 | #endif |
1d84e8df | 3307 | #ifdef MPE |
b0e47665 | 3308 | PerlIO_printf(PerlIO_stdout(), |
e583a879 | 3309 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 3310 | #endif |
9d116dd7 | 3311 | #ifdef OEMVS |
b0e47665 GS |
3312 | PerlIO_printf(PerlIO_stdout(), |
3313 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 3314 | #endif |
495c5fdc | 3315 | #ifdef __VOS__ |
b0e47665 | 3316 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 3317 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 3318 | #endif |
092bebab | 3319 | #ifdef __OPEN_VM |
b0e47665 GS |
3320 | PerlIO_printf(PerlIO_stdout(), |
3321 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 3322 | #endif |
a1a0e61e | 3323 | #ifdef POSIX_BC |
b0e47665 GS |
3324 | PerlIO_printf(PerlIO_stdout(), |
3325 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 3326 | #endif |
61ae2fbf | 3327 | #ifdef __MINT__ |
b0e47665 GS |
3328 | PerlIO_printf(PerlIO_stdout(), |
3329 | "MiNT port by Guido Flohr, 1997-1999\n"); | |
61ae2fbf | 3330 | #endif |
f83d2536 | 3331 | #ifdef EPOC |
b0e47665 | 3332 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 3333 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 3334 | #endif |
e1caacb4 | 3335 | #ifdef UNDER_CE |
b475b3e6 JH |
3336 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
3337 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
3338 | wce_hitreturn(); |
3339 | #endif | |
a0fd4948 | 3340 | #ifdef __SYMBIAN32__ |
27da23d5 JH |
3341 | PerlIO_printf(PerlIO_stdout(), |
3342 | "Symbian port by Nokia, 2004-2005\n"); | |
3343 | #endif | |
baed7233 DL |
3344 | #ifdef BINARY_BUILD_NOTICE |
3345 | BINARY_BUILD_NOTICE; | |
3346 | #endif | |
b0e47665 GS |
3347 | PerlIO_printf(PerlIO_stdout(), |
3348 | "\n\ | |
79072805 | 3349 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 3350 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 | 3351 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
a0288114 | 3352 | this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\ |
c9e30dd8 | 3353 | Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n"); |
7ca617d0 | 3354 | my_exit(0); |
79072805 | 3355 | case 'w': |
599cee73 | 3356 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
ac27b0f5 | 3357 | PL_dowarn |= G_WARN_ON; |
599cee73 PM |
3358 | s++; |
3359 | return s; | |
3360 | case 'W': | |
ac27b0f5 | 3361 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d MS |
3362 | if (!specialWARN(PL_compiling.cop_warnings)) |
3363 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 3364 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
3365 | s++; |
3366 | return s; | |
3367 | case 'X': | |
ac27b0f5 | 3368 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d MS |
3369 | if (!specialWARN(PL_compiling.cop_warnings)) |
3370 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 3371 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
3372 | s++; |
3373 | return s; | |
a0d0e21e | 3374 | case '*': |
79072805 LW |
3375 | case ' ': |
3376 | if (s[1] == '-') /* Additional switches on #! line. */ | |
3377 | return s+2; | |
3378 | break; | |
a0d0e21e | 3379 | case '-': |
79072805 | 3380 | case 0: |
51882d45 | 3381 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
3382 | case '\r': |
3383 | #endif | |
79072805 LW |
3384 | case '\n': |
3385 | case '\t': | |
3386 | break; | |
aa689395 | 3387 | #ifdef ALTERNATE_SHEBANG |
3388 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3389 | break; | |
3390 | #endif | |
a0d0e21e | 3391 | case 'P': |
3280af22 | 3392 | if (PL_preprocess) |
a0d0e21e LW |
3393 | return s+1; |
3394 | /* FALL THROUGH */ | |
79072805 | 3395 | default: |
cea2e8a9 | 3396 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 | 3397 | } |
bd61b366 | 3398 | return NULL; |
79072805 LW |
3399 | } |
3400 | ||
3401 | /* compliments of Tom Christiansen */ | |
3402 | ||
3403 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 3404 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
3405 | |
3406 | void | |
864dbfa3 | 3407 | Perl_my_unexec(pTHX) |
79072805 | 3408 | { |
b37c2d43 | 3409 | PERL_UNUSED_CONTEXT; |
79072805 | 3410 | #ifdef UNEXEC |
b37c2d43 AL |
3411 | SV * prog = newSVpv(BIN_EXP, 0); |
3412 | SV * file = newSVpv(PL_origfilename, 0); | |
ee580363 | 3413 | int status = 1; |
79072805 LW |
3414 | extern int etext; |
3415 | ||
396482e1 | 3416 | sv_catpvs(prog, "/perl"); |
396482e1 | 3417 | sv_catpvs(file, ".perldump"); |
79072805 | 3418 | |
ee580363 GS |
3419 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
3420 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 3421 | PerlProc_exit(status); |
79072805 | 3422 | #else |
a5f75d66 AD |
3423 | # ifdef VMS |
3424 | # include <lib$routines.h> | |
3425 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
84d78eb7 YO |
3426 | # elif defined(WIN32) || defined(__CYGWIN__) |
3427 | Perl_croak(aTHX_ "dump is not supported"); | |
aa689395 | 3428 | # else |
79072805 | 3429 | ABORT(); /* for use with undump */ |
aa689395 | 3430 | # endif |
a5f75d66 | 3431 | #endif |
79072805 LW |
3432 | } |
3433 | ||
cb68f92d GS |
3434 | /* initialize curinterp */ |
3435 | STATIC void | |
cea2e8a9 | 3436 | S_init_interp(pTHX) |
cb68f92d | 3437 | { |
97aff369 | 3438 | dVAR; |
acfe0abc GS |
3439 | #ifdef MULTIPLICITY |
3440 | # define PERLVAR(var,type) | |
3441 | # define PERLVARA(var,n,type) | |
3442 | # if defined(PERL_IMPLICIT_CONTEXT) | |
b7f7fff6 NC |
3443 | # define PERLVARI(var,type,init) aTHX->var = init; |
3444 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
3967c732 | 3445 | # else |
acfe0abc GS |
3446 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
3447 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 3448 | # endif |
acfe0abc | 3449 | # include "intrpvar.h" |
b7f7fff6 | 3450 | # include "thrdvar.h" |
acfe0abc GS |
3451 | # undef PERLVAR |
3452 | # undef PERLVARA | |
3453 | # undef PERLVARI | |
3454 | # undef PERLVARIC | |
3455 | #else | |
3456 | # define PERLVAR(var,type) | |
3457 | # define PERLVARA(var,n,type) | |
3458 | # define PERLVARI(var,type,init) PL_##var = init; | |
3459 | # define PERLVARIC(var,type,init) PL_##var = init; | |
3460 | # include "intrpvar.h" | |
b7f7fff6 | 3461 | # include "thrdvar.h" |
acfe0abc GS |
3462 | # undef PERLVAR |
3463 | # undef PERLVARA | |
3464 | # undef PERLVARI | |
3465 | # undef PERLVARIC | |
cb68f92d GS |
3466 | #endif |
3467 | ||
cb68f92d GS |
3468 | } |
3469 | ||
76e3520e | 3470 | STATIC void |
cea2e8a9 | 3471 | S_init_main_stash(pTHX) |
79072805 | 3472 | { |
97aff369 | 3473 | dVAR; |
463ee0b2 | 3474 | GV *gv; |
6e72f9df | 3475 | |
3280af22 | 3476 | PL_curstash = PL_defstash = newHV(); |
23579a14 NC |
3477 | /* We know that the string "main" will be in the global shared string |
3478 | table, so it's a small saving to use it rather than allocate another | |
3479 | 8 bytes. */ | |
18916d0d | 3480 | PL_curstname = newSVpvs_share("main"); |
fafc274c | 3481 | gv = gv_fetchpvs("main::", GV_ADD|GV_NOTQUAL, SVt_PVHV); |
23579a14 NC |
3482 | /* If we hadn't caused another reference to "main" to be in the shared |
3483 | string table above, then it would be worth reordering these two, | |
3484 | because otherwise all we do is delete "main" from it as a consequence | |
3485 | of the SvREFCNT_dec, only to add it again with hv_name_set */ | |
adbc6bb1 | 3486 | SvREFCNT_dec(GvHV(gv)); |
23579a14 | 3487 | hv_name_set(PL_defstash, "main", 4, 0); |
b37c2d43 | 3488 | GvHV(gv) = (HV*)SvREFCNT_inc_simple(PL_defstash); |
463ee0b2 | 3489 | SvREADONLY_on(gv); |
fafc274c NC |
3490 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL, |
3491 | SVt_PVAV))); | |
b37c2d43 | 3492 | SvREFCNT_inc_simple(PL_incgv); /* Don't allow it to be freed */ |
3280af22 | 3493 | GvMULTI_on(PL_incgv); |
fafc274c | 3494 | PL_hintgv = gv_fetchpvs("\010", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^H */ |
3280af22 | 3495 | GvMULTI_on(PL_hintgv); |
fafc274c | 3496 | PL_defgv = gv_fetchpvs("_", GV_ADD|GV_NOTQUAL, SVt_PVAV); |
b37c2d43 | 3497 | SvREFCNT_inc_simple(PL_defgv); |
fafc274c | 3498 | PL_errgv = gv_HVadd(gv_fetchpvs("@", GV_ADD|GV_NOTQUAL, SVt_PV)); |
b37c2d43 | 3499 | SvREFCNT_inc_simple(PL_errgv); |
3280af22 | 3500 | GvMULTI_on(PL_errgv); |
fafc274c | 3501 | PL_replgv = gv_fetchpvs("\022", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^R */ |
3280af22 | 3502 | GvMULTI_on(PL_replgv); |
cea2e8a9 | 3503 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
c69033f2 NC |
3504 | #ifdef PERL_DONT_CREATE_GVSV |
3505 | gv_SVadd(PL_errgv); | |
3506 | #endif | |
38a03e6e MB |
3507 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
3508 | sv_setpvn(ERRSV, "", 0); | |
3280af22 | 3509 | PL_curstash = PL_defstash; |
11faa288 | 3510 | CopSTASH_set(&PL_compiling, PL_defstash); |
5c1737d1 NC |
3511 | PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV)); |
3512 | PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI, | |
3513 | SVt_PVHV)); | |
4633a7c4 | 3514 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 3515 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
3516 | } |
3517 | ||
fdf5d70d | 3518 | STATIC int |
cdd8118e NC |
3519 | S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv, |
3520 | int *suidscript) | |
79072805 | 3521 | { |
ae3f3efd | 3522 | #ifndef IAMSUID |
e1ec3a88 AL |
3523 | const char *quote; |
3524 | const char *code; | |
3525 | const char *cpp_discard_flag; | |
3526 | const char *perl; | |
ae3f3efd | 3527 | #endif |
fdf5d70d | 3528 | int fdscript = -1; |
27da23d5 | 3529 | dVAR; |
1b24ed4b | 3530 | |
cdd8118e | 3531 | *suidscript = -1; |
79072805 | 3532 | |
3280af22 | 3533 | if (PL_e_script) { |
89529cee | 3534 | PL_origfilename = savepvs("-e"); |
96436eeb | 3535 | } |
6c4ab083 GS |
3536 | else { |
3537 | /* if find_script() returns, it returns a malloc()-ed value */ | |
dd374669 | 3538 | scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
3539 | |
3540 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
e1ec3a88 | 3541 | const char *s = scriptname + 8; |
fdf5d70d | 3542 | fdscript = atoi(s); |
6c4ab083 GS |
3543 | while (isDIGIT(*s)) |
3544 | s++; | |
3545 | if (*s) { | |
ae3f3efd PS |
3546 | /* PSz 18 Feb 04 |
3547 | * Tell apart "normal" usage of fdscript, e.g. | |
3548 | * with bash on FreeBSD: | |
3549 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
3550 | * from usage in suidperl. | |
3551 | * Does any "normal" usage leave garbage after the number??? | |
3552 | * Is it a mistake to use a similar /dev/fd/ construct for | |
3553 | * suidperl? | |
3554 | */ | |
cdd8118e | 3555 | *suidscript = 1; |
ae3f3efd PS |
3556 | /* PSz 20 Feb 04 |
3557 | * Be supersafe and do some sanity-checks. | |
3558 | * Still, can we be sure we got the right thing? | |
3559 | */ | |
3560 | if (*s != '/') { | |
3561 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3562 | } | |
3563 | if (! *(s+1)) { | |
3564 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3565 | } | |
6c4ab083 | 3566 | scriptname = savepv(s + 1); |
3280af22 | 3567 | Safefree(PL_origfilename); |
dd374669 | 3568 | PL_origfilename = (char *)scriptname; |
6c4ab083 GS |
3569 | } |
3570 | } | |
3571 | } | |
3572 | ||
05ec9bb3 | 3573 | CopFILE_free(PL_curcop); |
57843af0 | 3574 | CopFILE_set(PL_curcop, PL_origfilename); |
770526c1 | 3575 | if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') |
dd374669 | 3576 | scriptname = (char *)""; |
fdf5d70d NC |
3577 | if (fdscript >= 0) { |
3578 | PL_rsfp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE); | |
1b24ed4b MS |
3579 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3580 | if (PL_rsfp) | |
3581 | /* ensure close-on-exec */ | |
3582 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3583 | # endif | |
96436eeb | 3584 | } |
ae3f3efd PS |
3585 | #ifdef IAMSUID |
3586 | else { | |
86207487 NC |
3587 | Perl_croak(aTHX_ "sperl needs fd script\n" |
3588 | "You should not call sperl directly; do you need to " | |
3589 | "change a #! line\nfrom sperl to perl?\n"); | |
3590 | ||
ae3f3efd PS |
3591 | /* PSz 11 Nov 03 |
3592 | * Do not open (or do other fancy stuff) while setuid. | |
3593 | * Perl does the open, and hands script to suidperl on a fd; | |
3594 | * suidperl only does some checks, sets up UIDs and re-execs | |
3595 | * perl with that fd as it has always done. | |
3596 | */ | |
3597 | } | |
cdd8118e | 3598 | if (*suidscript != 1) { |
ae3f3efd PS |
3599 | Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); |
3600 | } | |
3601 | #else /* IAMSUID */ | |
3280af22 | 3602 | else if (PL_preprocess) { |
c4420975 | 3603 | const char * const cpp_cfg = CPPSTDIN; |
396482e1 | 3604 | SV * const cpp = newSVpvs(""); |
561b68a9 | 3605 | SV * const cmd = newSV(0); |
46fc3d4c | 3606 | |
ae58f265 JH |
3607 | if (cpp_cfg[0] == 0) /* PERL_MICRO? */ |
3608 | Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined"); | |
46fc3d4c | 3609 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 | 3610 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 3611 | sv_catpv(cpp, cpp_cfg); |
79072805 | 3612 | |
1b24ed4b | 3613 | # ifndef VMS |
396482e1 | 3614 | sv_catpvs(sv, "-I"); |
1b24ed4b MS |
3615 | sv_catpv(sv,PRIVLIB_EXP); |
3616 | # endif | |
46fc3d4c | 3617 | |
14953ddc MB |
3618 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3619 | "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n", | |
848ef955 NC |
3620 | scriptname, SvPVX_const (cpp), SvPVX_const (sv), |
3621 | CPPMINUS)); | |
1b24ed4b MS |
3622 | |
3623 | # if defined(MSDOS) || defined(WIN32) || defined(VMS) | |
3624 | quote = "\""; | |
3625 | # else | |
3626 | quote = "'"; | |
3627 | # endif | |
3628 | ||
3629 | # ifdef VMS | |
3630 | cpp_discard_flag = ""; | |
3631 | # else | |
3632 | cpp_discard_flag = "-C"; | |
3633 | # endif | |
3634 | ||
3635 | # ifdef OS2 | |
3636 | perl = os2_execname(aTHX); | |
3637 | # else | |
3638 | perl = PL_origargv[0]; | |
3639 | # endif | |
3640 | ||
3641 | ||
3642 | /* This strips off Perl comments which might interfere with | |
62375a60 NIS |
3643 | the C pre-processor, including #!. #line directives are |
3644 | deliberately stripped to avoid confusion with Perl's version | |
1b24ed4b MS |
3645 | of #line. FWP played some golf with it so it will fit |
3646 | into VMS's 255 character buffer. | |
3647 | */ | |
3648 | if( PL_doextract ) | |
3649 | code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3650 | else | |
3651 | code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3652 | ||
3653 | Perl_sv_setpvf(aTHX_ cmd, "\ | |
3654 | %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s", | |
62375a60 | 3655 | perl, quote, code, quote, scriptname, cpp, |
1b24ed4b MS |
3656 | cpp_discard_flag, sv, CPPMINUS); |
3657 | ||
3280af22 | 3658 | PL_doextract = FALSE; |
0a6c758d | 3659 | |
62375a60 NIS |
3660 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3661 | "PL_preprocess: cmd=\"%s\"\n", | |
848ef955 | 3662 | SvPVX_const(cmd))); |
0a6c758d | 3663 | |
848ef955 | 3664 | PL_rsfp = PerlProc_popen((char *)SvPVX_const(cmd), (char *)"r"); |
46fc3d4c | 3665 | SvREFCNT_dec(cmd); |
3666 | SvREFCNT_dec(cpp); | |
79072805 LW |
3667 | } |
3668 | else if (!*scriptname) { | |
cdd8118e | 3669 | forbid_setid(0, *suidscript); |
3280af22 | 3670 | PL_rsfp = PerlIO_stdin(); |
79072805 | 3671 | } |
96436eeb | 3672 | else { |
3280af22 | 3673 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
1b24ed4b MS |
3674 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3675 | if (PL_rsfp) | |
3676 | /* ensure close-on-exec */ | |
3677 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3678 | # endif | |
96436eeb | 3679 | } |
ae3f3efd | 3680 | #endif /* IAMSUID */ |
3280af22 | 3681 | if (!PL_rsfp) { |
447218f8 | 3682 | /* PSz 16 Sep 03 Keep neat error message */ |
b1681ed3 RGS |
3683 | if (PL_e_script) |
3684 | Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno)); | |
3685 | else | |
3686 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", | |
3687 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3688 | } |
fdf5d70d | 3689 | return fdscript; |
79072805 | 3690 | } |
8d063cd8 | 3691 | |
7b89560d JH |
3692 | /* Mention |
3693 | * I_SYSSTATVFS HAS_FSTATVFS | |
3694 | * I_SYSMOUNT | |
c890dc6c | 3695 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3696 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3697 | * here so that metaconfig picks them up. */ | |
3698 | ||
104d25b7 | 3699 | #ifdef IAMSUID |
864dbfa3 | 3700 | STATIC int |
e688b231 | 3701 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 3702 | { |
ae3f3efd PS |
3703 | /* PSz 27 Feb 04 |
3704 | * We used to do this as "plain" user (after swapping UIDs with setreuid); | |
3705 | * but is needed also on machines without setreuid. | |
3706 | * Seems safe enough to run as root. | |
3707 | */ | |
0545a864 JH |
3708 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
3709 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
ae3f3efd PS |
3710 | /* PSz 12 Nov 03 |
3711 | * Need to check noexec also: nosuid might not be set, the average | |
3712 | * sysadmin would say that nosuid is irrelevant once he sets noexec. | |
3713 | */ | |
3714 | int on_noexec = 0; /* the fd is on a noexec fs */ | |
3715 | ||
104d25b7 | 3716 | /* |
ad27e871 | 3717 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 3718 | * fstatvfs() is UNIX98. |
0545a864 | 3719 | * fstatfs() is 4.3 BSD. |
ad27e871 | 3720 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
3721 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
3722 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
3723 | */ |
3724 | ||
6439433f JH |
3725 | #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ |
3726 | ||
3727 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3728 | defined(HAS_FSTATVFS) | |
3729 | # define FD_ON_NOSUID_CHECK_OKAY | |
104d25b7 | 3730 | struct statvfs stfs; |
6439433f | 3731 | |
104d25b7 JH |
3732 | check_okay = fstatvfs(fd, &stfs) == 0; |
3733 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
ae3f3efd PS |
3734 | #ifdef ST_NOEXEC |
3735 | /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented | |
3736 | on platforms where it is present. */ | |
3737 | on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); | |
3738 | #endif | |
6439433f | 3739 | # endif /* fstatvfs */ |
ac27b0f5 | 3740 | |
6439433f JH |
3741 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ |
3742 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3743 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3744 | defined(HAS_FSTATFS) && \ |
3745 | defined(HAS_STRUCT_STATFS) && \ | |
3746 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
3747 | # define FD_ON_NOSUID_CHECK_OKAY | |
e688b231 | 3748 | struct statfs stfs; |
6439433f | 3749 | |
104d25b7 | 3750 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 3751 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
ae3f3efd | 3752 | on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); |
6439433f JH |
3753 | # endif /* fstatfs */ |
3754 | ||
3755 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3756 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3757 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3758 | defined(HAS_FSTAT) && \ |
3759 | defined(HAS_USTAT) && \ | |
3760 | defined(HAS_GETMNT) && \ | |
3761 | defined(HAS_STRUCT_FS_DATA) && \ | |
3762 | defined(NOSTAT_ONE) | |
3763 | # define FD_ON_NOSUID_CHECK_OKAY | |
c623ac67 | 3764 | Stat_t fdst; |
6439433f | 3765 | |
0545a864 | 3766 | if (fstat(fd, &fdst) == 0) { |
6439433f JH |
3767 | struct ustat us; |
3768 | if (ustat(fdst.st_dev, &us) == 0) { | |
3769 | struct fs_data fsd; | |
3770 | /* NOSTAT_ONE here because we're not examining fields which | |
3771 | * vary between that case and STAT_ONE. */ | |
ad27e871 | 3772 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { |
6439433f JH |
3773 | size_t cmplen = sizeof(us.f_fname); |
3774 | if (sizeof(fsd.fd_req.path) < cmplen) | |
3775 | cmplen = sizeof(fsd.fd_req.path); | |
3776 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
3777 | fdst.st_dev == fsd.fd_req.dev) { | |
6e186fbe MHM |
3778 | check_okay = 1; |
3779 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
3780 | on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; | |
6439433f JH |
3781 | } |
3782 | } | |
3783 | } | |
0545a864 | 3784 | } |
6439433f JH |
3785 | # endif /* fstat+ustat+getmnt */ |
3786 | ||
3787 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3788 | defined(HAS_GETMNTENT) && \ | |
3789 | defined(HAS_HASMNTOPT) && \ | |
ae3f3efd PS |
3790 | defined(MNTOPT_NOSUID) && \ |
3791 | defined(MNTOPT_NOEXEC) | |
6439433f JH |
3792 | # define FD_ON_NOSUID_CHECK_OKAY |
3793 | FILE *mtab = fopen("/etc/mtab", "r"); | |
3794 | struct mntent *entry; | |
c623ac67 | 3795 | Stat_t stb, fsb; |
104d25b7 JH |
3796 | |
3797 | if (mtab && (fstat(fd, &stb) == 0)) { | |
6439433f JH |
3798 | while (entry = getmntent(mtab)) { |
3799 | if (stat(entry->mnt_dir, &fsb) == 0 | |
3800 | && fsb.st_dev == stb.st_dev) | |
3801 | { | |
3802 | /* found the filesystem */ | |
3803 | check_okay = 1; | |
3804 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
3805 | on_nosuid = 1; | |
ae3f3efd PS |
3806 | if (hasmntopt(entry, MNTOPT_NOEXEC)) |
3807 | on_noexec = 1; | |
6439433f JH |
3808 | break; |
3809 | } /* A single fs may well fail its stat(). */ | |
3810 | } | |
104d25b7 JH |
3811 | } |
3812 | if (mtab) | |
6439433f JH |
3813 | fclose(mtab); |
3814 | # endif /* getmntent+hasmntopt */ | |
0545a864 | 3815 | |
ac27b0f5 | 3816 | if (!check_okay) |
ae3f3efd PS |
3817 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); |
3818 | if (on_nosuid) | |
3819 | Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); | |
3820 | if (on_noexec) | |
3821 | Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); | |
3822 | return ((!check_okay) || on_nosuid || on_noexec); | |
104d25b7 JH |
3823 | } |
3824 | #endif /* IAMSUID */ | |
3825 | ||
76e3520e | 3826 | STATIC void |
fdf5d70d | 3827 | S_validate_suid(pTHX_ const char *validarg, const char *scriptname, |
cdd8118e | 3828 | int fdscript, int suidscript) |
79072805 | 3829 | { |
27da23d5 | 3830 | dVAR; |
155aba94 | 3831 | #ifdef IAMSUID |
ae3f3efd PS |
3832 | /* int which; */ |
3833 | #endif /* IAMSUID */ | |
96436eeb | 3834 | |
13281fa4 LW |
3835 | /* do we need to emulate setuid on scripts? */ |
3836 | ||
3837 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
3838 | * in the kernel because of a security problem. Merely defining DOSUID | |
3839 | * in perl will not fix that problem, but if you have disabled setuid | |
3840 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
3841 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
3842 | * root version must be called suidperl or sperlN.NNN. If regular perl |
3843 | * discovers that it has opened a setuid script, it calls suidperl with | |
3844 | * the same argv that it had. If suidperl finds that the script it has | |
3845 | * just opened is NOT setuid root, it sets the effective uid back to the | |
3846 | * uid. We don't just make perl setuid root because that loses the | |
3847 | * effective uid we had before invoking perl, if it was different from the | |
3848 | * uid. | |
ae3f3efd PS |
3849 | * PSz 27 Feb 04 |
3850 | * Description/comments above do not match current workings: | |
3851 | * suidperl must be hardlinked to sperlN.NNN (that is what we exec); | |
3852 | * suidperl called with script open and name changed to /dev/fd/N/X; | |
3853 | * suidperl croaks if script is not setuid; | |
3854 | * making perl setuid would be a huge security risk (and yes, that | |
3855 | * would lose any euid we might have had). | |
13281fa4 LW |
3856 | * |
3857 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
3858 | * be defined in suidperl only. suidperl must be setuid root. The | |
3859 | * Configure script will set this up for you if you want it. | |
3860 | */ | |
a687059c | 3861 | |
13281fa4 | 3862 | #ifdef DOSUID |
dd720ed5 | 3863 | const char *s, *s2; |
a0d0e21e | 3864 | |
b28d0864 | 3865 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 3866 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
ae3f3efd | 3867 | if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 3868 | I32 len; |
dd720ed5 | 3869 | const char *linestr; |
42d9b98d | 3870 | const char *s_end; |
13281fa4 | 3871 | |
a687059c | 3872 | #ifdef IAMSUID |
cdd8118e | 3873 | if (fdscript < 0 || suidscript != 1) |
ae3f3efd PS |
3874 | Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ |
3875 | /* PSz 11 Nov 03 | |
3876 | * Since the script is opened by perl, not suidperl, some of these | |
3877 | * checks are superfluous. Leaving them in probably does not lower | |
3878 | * security(?!). | |
3879 | */ | |
3880 | /* PSz 27 Feb 04 | |
3881 | * Do checks even for systems with no HAS_SETREUID. | |
3882 | * We used to swap, then re-swap UIDs with | |
3883 | #ifdef HAS_SETREUID | |
3884 | if (setreuid(PL_euid,PL_uid) < 0 | |
3885 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) | |
3886 | Perl_croak(aTHX_ "Can't swap uid and euid"); | |
3887 | #endif | |
3888 | #ifdef HAS_SETREUID | |
3889 | if (setreuid(PL_uid,PL_euid) < 0 | |
3890 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) | |
3891 | Perl_croak(aTHX_ "Can't reswap uid and euid"); | |
3892 | #endif | |
3893 | */ | |
3894 | ||
a687059c LW |
3895 | /* On this access check to make sure the directories are readable, |
3896 | * there is actually a small window that the user could use to make | |
3897 | * filename point to an accessible directory. So there is a faint | |
3898 | * chance that someone could execute a setuid script down in a | |
3899 | * non-accessible directory. I don't know what to do about that. | |
3900 | * But I don't think it's too important. The manual lies when | |
3901 | * it says access() is useful in setuid programs. | |
ae3f3efd PS |
3902 | * |
3903 | * So, access() is pretty useless... but not harmful... do anyway. | |
a687059c | 3904 | */ |
e57400b1 | 3905 | if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ |
ae3f3efd | 3906 | Perl_croak(aTHX_ "Can't access() script\n"); |
e57400b1 | 3907 | } |
ae3f3efd | 3908 | |
a687059c LW |
3909 | /* If we can swap euid and uid, then we can determine access rights |
3910 | * with a simple stat of the file, and then compare device and | |
3911 | * inode to make sure we did stat() on the same file we opened. | |
3912 | * Then we just have to make sure he or she can execute it. | |
ae3f3efd PS |
3913 | * |
3914 | * PSz 24 Feb 04 | |
3915 | * As the script is opened by perl, not suidperl, we do not need to | |
3916 | * care much about access rights. | |
3917 | * | |
3918 | * The 'script changed' check is needed, or we can get lied to | |
3919 | * about $0 with e.g. | |
3920 | * suidperl /dev/fd/4//bin/x 4<setuidscript | |
3921 | * Without HAS_SETREUID, is it safe to stat() as root? | |
3922 | * | |
3923 | * Are there any operating systems that pass /dev/fd/xxx for setuid | |
3924 | * scripts, as suggested/described in perlsec(1)? Surely they do not | |
3925 | * pass the script name as we do, so the "script changed" test would | |
3926 | * fail for them... but we never get here with | |
3927 | * SETUID_SCRIPTS_ARE_SECURE_NOW defined. | |
3928 | * | |
3929 | * This is one place where we must "lie" about return status: not | |
3930 | * say if the stat() failed. We are doing this as root, and could | |
3931 | * be tricked into reporting existence or not of files that the | |
3932 | * "plain" user cannot even see. | |
a687059c LW |
3933 | */ |
3934 | { | |
c623ac67 | 3935 | Stat_t tmpstatbuf; |
ae3f3efd PS |
3936 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 || |
3937 | tmpstatbuf.st_dev != PL_statbuf.st_dev || | |
b28d0864 | 3938 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
ae3f3efd | 3939 | Perl_croak(aTHX_ "Setuid script changed\n"); |
a687059c | 3940 | } |
ae3f3efd | 3941 | |
a687059c | 3942 | } |
ae3f3efd PS |
3943 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
3944 | Perl_croak(aTHX_ "Real UID cannot exec script\n"); | |
3945 | ||
3946 | /* PSz 27 Feb 04 | |
3947 | * We used to do this check as the "plain" user (after swapping | |
3948 | * UIDs). But the check for nosuid and noexec filesystem is needed, | |
3949 | * and should be done even without HAS_SETREUID. (Maybe those | |
3950 | * operating systems do not have such mount options anyway...) | |
3951 | * Seems safe enough to do as root. | |
3952 | */ | |
3953 | #if !defined(NO_NOSUID_CHECK) | |
3954 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) { | |
3955 | Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n"); | |
3956 | } | |
3957 | #endif | |
a687059c LW |
3958 | #endif /* IAMSUID */ |
3959 | ||
e57400b1 | 3960 | if (!S_ISREG(PL_statbuf.st_mode)) { |
ae3f3efd | 3961 | Perl_croak(aTHX_ "Setuid script not plain file\n"); |
e57400b1 | 3962 | } |
b28d0864 | 3963 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 3964 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c | 3965 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
ae3f3efd | 3966 | /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */ |
57843af0 | 3967 | CopLINE_inc(PL_curcop); |
bd61b366 | 3968 | if (sv_gets(PL_linestr, PL_rsfp, 0) == NULL) |
f8d2da62 | 3969 | Perl_croak(aTHX_ "No #! line"); |
dd720ed5 | 3970 | linestr = SvPV_nolen_const(PL_linestr); |
f8d2da62 RGS |
3971 | /* required even on Sys V */ |
3972 | if (!*linestr || !linestr[1] || strnNE(linestr,"#!",2)) | |
cea2e8a9 | 3973 | Perl_croak(aTHX_ "No #! line"); |
f8d2da62 | 3974 | linestr += 2; |
dd720ed5 | 3975 | s = linestr; |
ae3f3efd PS |
3976 | /* PSz 27 Feb 04 */ |
3977 | /* Sanity check on line length */ | |
42d9b98d NC |
3978 | s_end = s + strlen(s); |
3979 | if (s_end == s || (s_end - s) > 4000) | |
ae3f3efd PS |
3980 | Perl_croak(aTHX_ "Very long #! line"); |
3981 | /* Allow more than a single space after #! */ | |
3982 | while (isSPACE(*s)) s++; | |
3983 | /* Sanity check on buffer end */ | |
3984 | while ((*s) && !isSPACE(*s)) s++; | |
dd720ed5 | 3985 | for (s2 = s; (s2 > linestr && |
3792a11b NC |
3986 | (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_' |
3987 | || s2[-1] == '-')); s2--) ; | |
ae3f3efd | 3988 | /* Sanity check on buffer start */ |
dd720ed5 NC |
3989 | if ( (s2-4 < linestr || strnNE(s2-4,"perl",4)) && |
3990 | (s-9 < linestr || strnNE(s-9,"perl",4)) ) | |
cea2e8a9 | 3991 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 3992 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
3993 | /* |
3994 | * #! arg must be what we saw above. They can invoke it by | |
3995 | * mentioning suidperl explicitly, but they may not add any strange | |
3996 | * arguments beyond what #! says if they do invoke suidperl that way. | |
3997 | */ | |
ae3f3efd PS |
3998 | /* |
3999 | * The way validarg was set up, we rely on the kernel to start | |
4000 | * scripts with argv[1] set to contain all #! line switches (the | |
4001 | * whole line). | |
4002 | */ | |
4003 | /* | |
4004 | * Check that we got all the arguments listed in the #! line (not | |
4005 | * just that there are no extraneous arguments). Might not matter | |
4006 | * much, as switches from #! line seem to be acted upon (also), and | |
4007 | * so may be checked and trapped in perl. But, security checks must | |
4008 | * be done in suidperl and not deferred to perl. Note that suidperl | |
4009 | * does not get around to parsing (and checking) the switches on | |
4010 | * the #! line (but execs perl sooner). | |
4011 | * Allow (require) a trailing newline (which may be of two | |
4012 | * characters on some architectures?) (but no other trailing | |
4013 | * whitespace). | |
4014 | */ | |
13281fa4 LW |
4015 | len = strlen(validarg); |
4016 | if (strEQ(validarg," PHOOEY ") || | |
ae3f3efd | 4017 | strnNE(s,validarg,len) || !isSPACE(s[len]) || |
42d9b98d NC |
4018 | !((s_end - s) == len+1 |
4019 | || ((s_end - s) == len+2 && isSPACE(s[len+1])))) | |
cea2e8a9 | 4020 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
4021 | |
4022 | #ifndef IAMSUID | |
fdf5d70d | 4023 | if (fdscript < 0 && |
ae3f3efd | 4024 | PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
b28d0864 NIS |
4025 | PL_euid == PL_statbuf.st_uid) |
4026 | if (!PL_do_undump) | |
cea2e8a9 | 4027 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
11fb1898 | 4028 | FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); |
a687059c | 4029 | #endif /* IAMSUID */ |
13281fa4 | 4030 | |
fdf5d70d | 4031 | if (fdscript < 0 && |
ae3f3efd PS |
4032 | PL_euid) { /* oops, we're not the setuid root perl */ |
4033 | /* PSz 18 Feb 04 | |
4034 | * When root runs a setuid script, we do not go through the same | |
4035 | * steps of execing sperl and then perl with fd scripts, but | |
4036 | * simply set up UIDs within the same perl invocation; so do | |
4037 | * not have the same checks (on options, whatever) that we have | |
4038 | * for plain users. No problem really: would have to be a script | |
4039 | * that does not actually work for plain users; and if root is | |
4040 | * foolish and can be persuaded to run such an unsafe script, he | |
4041 | * might run also non-setuid ones, and deserves what he gets. | |
4042 | * | |
4043 | * Or, we might drop the PL_euid check above (and rely just on | |
fdf5d70d | 4044 | * fdscript to avoid loops), and do the execs |
ae3f3efd PS |
4045 | * even for root. |
4046 | */ | |
13281fa4 | 4047 | #ifndef IAMSUID |
ae3f3efd PS |
4048 | int which; |
4049 | /* PSz 11 Nov 03 | |
4050 | * Pass fd script to suidperl. | |
4051 | * Exec suidperl, substituting fd script for scriptname. | |
4052 | * Pass script name as "subdir" of fd, which perl will grok; | |
4053 | * in fact will use that to distinguish this from "normal" | |
4054 | * usage, see comments above. | |
4055 | */ | |
4056 | PerlIO_rewind(PL_rsfp); | |
4057 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
4058 | /* PSz 27 Feb 04 Sanity checks on scriptname */ | |
4059 | if ((!scriptname) || (!*scriptname) ) { | |
4060 | Perl_croak(aTHX_ "No setuid script name\n"); | |
4061 | } | |
4062 | if (*scriptname == '-') { | |
4063 | Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); | |
4064 | /* Or we might confuse it with an option when replacing | |
4065 | * name in argument list, below (though we do pointer, not | |
4066 | * string, comparisons). | |
4067 | */ | |
4068 | } | |
4069 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; | |
4070 | if (!PL_origargv[which]) { | |
4071 | Perl_croak(aTHX_ "Can't change argv to have fd script\n"); | |
4072 | } | |
4073 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
4074 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
4075 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
4076 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
4077 | #endif | |
b35112e7 | 4078 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4079 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4080 | (int)PERL_REVISION, (int)PERL_VERSION, |
4081 | (int)PERL_SUBVERSION), PL_origargv); | |
b35112e7 | 4082 | PERL_FPU_POST_EXEC |
ae3f3efd PS |
4083 | #endif /* IAMSUID */ |
4084 | Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); | |
13281fa4 LW |
4085 | } |
4086 | ||
b28d0864 | 4087 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
ae3f3efd PS |
4088 | /* PSz 26 Feb 04 |
4089 | * This seems back to front: we try HAS_SETEGID first; if not available | |
4090 | * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK | |
4091 | * in the sense that we only want to set EGID; but are there any machines | |
4092 | * with either of the latter, but not the former? Same with UID, later. | |
4093 | */ | |
fe14fcc3 | 4094 | #ifdef HAS_SETEGID |
b28d0864 | 4095 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 4096 | #else |
fe14fcc3 | 4097 | #ifdef HAS_SETREGID |
b28d0864 | 4098 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
4099 | #else |
4100 | #ifdef HAS_SETRESGID | |
b28d0864 | 4101 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 4102 | #else |
b28d0864 | 4103 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
4104 | #endif |
4105 | #endif | |
85e6fe83 | 4106 | #endif |
b28d0864 | 4107 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 4108 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 4109 | } |
b28d0864 NIS |
4110 | if (PL_statbuf.st_mode & S_ISUID) { |
4111 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 4112 | #ifdef HAS_SETEUID |
b28d0864 | 4113 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 4114 | #else |
fe14fcc3 | 4115 | #ifdef HAS_SETREUID |
b28d0864 | 4116 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
4117 | #else |
4118 | #ifdef HAS_SETRESUID | |
b28d0864 | 4119 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 4120 | #else |
b28d0864 | 4121 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
4122 | #endif |
4123 | #endif | |
85e6fe83 | 4124 | #endif |
b28d0864 | 4125 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 4126 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 4127 | } |
b28d0864 | 4128 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 4129 | #ifdef HAS_SETEUID |
b28d0864 | 4130 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 4131 | #else |
fe14fcc3 | 4132 | #ifdef HAS_SETREUID |
b28d0864 | 4133 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 4134 | #else |
85e6fe83 | 4135 | #ifdef HAS_SETRESUID |
b28d0864 | 4136 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 4137 | #else |
b28d0864 | 4138 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 4139 | #endif |
a687059c LW |
4140 | #endif |
4141 | #endif | |
b28d0864 | 4142 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 4143 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 4144 | } |
748a9306 | 4145 | init_ids(); |
b28d0864 | 4146 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
ae3f3efd | 4147 | Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ |
13281fa4 LW |
4148 | } |
4149 | #ifdef IAMSUID | |
ae3f3efd | 4150 | else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
cea2e8a9 | 4151 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
cdd8118e | 4152 | else if (fdscript < 0 || suidscript != 1) |
ae3f3efd PS |
4153 | /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
4154 | Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); | |
e57400b1 | 4155 | else { |
ae3f3efd PS |
4156 | /* PSz 16 Sep 03 Keep neat error message */ |
4157 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); | |
e57400b1 | 4158 | } |
96436eeb | 4159 | |
4160 | /* We absolutely must clear out any saved ids here, so we */ | |
4161 | /* exec the real perl, substituting fd script for scriptname. */ | |
4162 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
ae3f3efd PS |
4163 | /* |
4164 | * It might be thought that using setresgid and/or setresuid (changed to | |
4165 | * set the saved IDs) above might obviate the need to exec, and we could | |
4166 | * go on to "do the perl thing". | |
4167 | * | |
4168 | * Is there such a thing as "saved GID", and is that set for setuid (but | |
4169 | * not setgid) execution like suidperl? Without exec, it would not be | |
4170 | * cleared for setuid (but not setgid) scripts (or might need a dummy | |
4171 | * setresgid). | |
4172 | * | |
4173 | * We need suidperl to do the exact same argument checking that perl | |
4174 | * does. Thus it cannot be very small; while it could be significantly | |
4175 | * smaller, it is safer (simpler?) to make it essentially the same | |
4176 | * binary as perl (but they are not identical). - Maybe could defer that | |
4177 | * check to the invoked perl, and suidperl be a tiny wrapper instead; | |
4178 | * but prefer to do thorough checks in suidperl itself. Such deferral | |
4179 | * would make suidperl security rely on perl, a design no-no. | |
4180 | * | |
4181 | * Setuid things should be short and simple, thus easy to understand and | |
4182 | * verify. They should do their "own thing", without influence by | |
4183 | * attackers. It may help if their internal execution flow is fixed, | |
4184 | * regardless of platform: it may be best to exec anyway. | |
4185 | * | |
4186 | * Suidperl should at least be conceptually simple: a wrapper only, | |
4187 | * never to do any real perl. Maybe we should put | |
4188 | * #ifdef IAMSUID | |
4189 | * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); | |
4190 | * #endif | |
4191 | * into the perly bits. | |
4192 | */ | |
b28d0864 NIS |
4193 | PerlIO_rewind(PL_rsfp); |
4194 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
ae3f3efd PS |
4195 | /* PSz 11 Nov 03 |
4196 | * Keep original arguments: suidperl already has fd script. | |
4197 | */ | |
4198 | /* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */ | |
4199 | /* if (!PL_origargv[which]) { */ | |
4200 | /* errno = EPERM; */ | |
4201 | /* Perl_croak(aTHX_ "Permission denied\n"); */ | |
4202 | /* } */ | |
4203 | /* PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", */ | |
4204 | /* PerlIO_fileno(PL_rsfp), PL_origargv[which])); */ | |
96436eeb | 4205 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 4206 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 4207 | #endif |
b35112e7 | 4208 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4209 | PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4210 | (int)PERL_REVISION, (int)PERL_VERSION, |
4211 | (int)PERL_SUBVERSION), PL_origargv);/* try again */ | |
b35112e7 | 4212 | PERL_FPU_POST_EXEC |
ae3f3efd | 4213 | Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); |
13281fa4 | 4214 | #endif /* IAMSUID */ |
a687059c | 4215 | #else /* !DOSUID */ |
294a48e9 AL |
4216 | PERL_UNUSED_ARG(fdscript); |
4217 | PERL_UNUSED_ARG(suidscript); | |
3280af22 | 4218 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 4219 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
b28d0864 NIS |
4220 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
4221 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 4222 | || |
b28d0864 | 4223 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 4224 | ) |
b28d0864 | 4225 | if (!PL_do_undump) |
cea2e8a9 | 4226 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
4227 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
4228 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
4229 | /* not set-id, must be wrapped */ | |
a687059c | 4230 | } |
13281fa4 | 4231 | #endif /* DOSUID */ |
294a48e9 AL |
4232 | PERL_UNUSED_ARG(validarg); |
4233 | PERL_UNUSED_ARG(scriptname); | |
79072805 | 4234 | } |
13281fa4 | 4235 | |
76e3520e | 4236 | STATIC void |
faef540c | 4237 | S_find_beginning(pTHX) |
79072805 | 4238 | { |
97aff369 | 4239 | dVAR; |
dd374669 AL |
4240 | register char *s; |
4241 | register const char *s2; | |
e55ac0fa HS |
4242 | #ifdef MACOS_TRADITIONAL |
4243 | int maclines = 0; | |
4244 | #endif | |
33b78306 LW |
4245 | |
4246 | /* skip forward in input to the real script? */ | |
4247 | ||
bf4acbe4 | 4248 | #ifdef MACOS_TRADITIONAL |
084592ab | 4249 | /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ |
ac27b0f5 | 4250 | |
bf4acbe4 | 4251 | while (PL_doextract || gMacPerl_AlwaysExtract) { |
bd61b366 | 4252 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
bf4acbe4 GS |
4253 | if (!gMacPerl_AlwaysExtract) |
4254 | Perl_croak(aTHX_ "No Perl script found in input\n"); | |
e55ac0fa | 4255 | |
bf4acbe4 GS |
4256 | if (PL_doextract) /* require explicit override ? */ |
4257 | if (!OverrideExtract(PL_origfilename)) | |
4258 | Perl_croak(aTHX_ "User aborted script\n"); | |
4259 | else | |
4260 | PL_doextract = FALSE; | |
e55ac0fa | 4261 | |
bf4acbe4 GS |
4262 | /* Pater peccavi, file does not have #! */ |
4263 | PerlIO_rewind(PL_rsfp); | |
e55ac0fa | 4264 | |
bf4acbe4 GS |
4265 | break; |
4266 | } | |
4267 | #else | |
3280af22 | 4268 | while (PL_doextract) { |
bd61b366 | 4269 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == NULL) |
cea2e8a9 | 4270 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
bf4acbe4 | 4271 | #endif |
4f0c37ba IZ |
4272 | s2 = s; |
4273 | if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { | |
3280af22 NIS |
4274 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
4275 | PL_doextract = FALSE; | |
6e72f9df | 4276 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
4277 | s2 = s; | |
4278 | while (*s == ' ' || *s == '\t') s++; | |
4279 | if (*s++ == '-') { | |
3792a11b NC |
4280 | while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' |
4281 | || s2[-1] == '_') s2--; | |
6e72f9df | 4282 | if (strnEQ(s2-4,"perl",4)) |
97bd5664 | 4283 | while ((s = moreswitches(s))) |
155aba94 | 4284 | ; |
33b78306 | 4285 | } |
95e8664e | 4286 | #ifdef MACOS_TRADITIONAL |
e55ac0fa HS |
4287 | /* We are always searching for the #!perl line in MacPerl, |
4288 | * so if we find it, still keep the line count correct | |
4289 | * by counting lines we already skipped over | |
4290 | */ | |
4291 | for (; maclines > 0 ; maclines--) | |
4292 | PerlIO_ungetc(PL_rsfp, '\n'); | |
4293 | ||
95e8664e | 4294 | break; |
e55ac0fa HS |
4295 | |
4296 | /* gMacPerl_AlwaysExtract is false in MPW tool */ | |
4297 | } else if (gMacPerl_AlwaysExtract) { | |
4298 | ++maclines; | |
95e8664e | 4299 | #endif |
83025b21 LW |
4300 | } |
4301 | } | |
4302 | } | |
4303 | ||
afe37c7d | 4304 | |
76e3520e | 4305 | STATIC void |
cea2e8a9 | 4306 | S_init_ids(pTHX) |
352d5a3a | 4307 | { |
97aff369 | 4308 | dVAR; |
d8eceb89 JH |
4309 | PL_uid = PerlProc_getuid(); |
4310 | PL_euid = PerlProc_geteuid(); | |
4311 | PL_gid = PerlProc_getgid(); | |
4312 | PL_egid = PerlProc_getegid(); | |
748a9306 | 4313 | #ifdef VMS |
b28d0864 NIS |
4314 | PL_uid |= PL_gid << 16; |
4315 | PL_euid |= PL_egid << 16; | |
748a9306 | 4316 | #endif |
22f7c9c9 JH |
4317 | /* Should not happen: */ |
4318 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 4319 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
ae3f3efd PS |
4320 | /* BUG */ |
4321 | /* PSz 27 Feb 04 | |
4322 | * Should go by suidscript, not uid!=euid: why disallow | |
4323 | * system("ls") in scripts run from setuid things? | |
4324 | * Or, is this run before we check arguments and set suidscript? | |
4325 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
4326 | * (We never have suidscript, can we be sure to have fdscript?) | |
4327 | * Or must then go by UID checks? See comments in forbid_setid also. | |
4328 | */ | |
748a9306 | 4329 | } |
79072805 | 4330 | |
a0643315 JH |
4331 | /* This is used very early in the lifetime of the program, |
4332 | * before even the options are parsed, so PL_tainting has | |
b0891165 | 4333 | * not been initialized properly. */ |
af419de7 | 4334 | bool |
8f42b153 | 4335 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
22f7c9c9 | 4336 | { |
c3446a78 JH |
4337 | #ifndef PERL_IMPLICIT_SYS |
4338 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
4339 | * before we have an interpreter-- and the whole point of this | |
4340 | * function is to be called at such an early stage. If you are on | |
4341 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
4342 | * "tainted because running with altered effective ids', you'll | |
4343 | * have to add your own checks somewhere in here. The two most | |
4344 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
4345 | * of which has much of concept of 'uids'. */ | |
af419de7 | 4346 | int uid = PerlProc_getuid(); |
22f7c9c9 | 4347 | int euid = PerlProc_geteuid(); |
af419de7 | 4348 | int gid = PerlProc_getgid(); |
22f7c9c9 | 4349 | int egid = PerlProc_getegid(); |
6867be6d | 4350 | (void)envp; |
22f7c9c9 JH |
4351 | |
4352 | #ifdef VMS | |
af419de7 | 4353 | uid |= gid << 16; |
22f7c9c9 JH |
4354 | euid |= egid << 16; |
4355 | #endif | |
4356 | if (uid && (euid != uid || egid != gid)) | |
4357 | return 1; | |
c3446a78 | 4358 | #endif /* !PERL_IMPLICIT_SYS */ |
af419de7 JH |
4359 | /* This is a really primitive check; environment gets ignored only |
4360 | * if -T are the first chars together; otherwise one gets | |
4361 | * "Too late" message. */ | |
22f7c9c9 JH |
4362 | if ( argc > 1 && argv[1][0] == '-' |
4363 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
4364 | return 1; | |
4365 | return 0; | |
4366 | } | |
22f7c9c9 | 4367 | |
d0bafe7e NC |
4368 | /* Passing the flag as a single char rather than a string is a slight space |
4369 | optimisation. The only message that isn't /^-.$/ is | |
4370 | "program input from stdin", which is substituted in place of '\0', which | |
4371 | could never be a command line flag. */ | |
76e3520e | 4372 | STATIC void |
cdd8118e | 4373 | S_forbid_setid(pTHX_ const char flag, const int suidscript) |
bbce6d69 | 4374 | { |
97aff369 | 4375 | dVAR; |
d0bafe7e NC |
4376 | char string[3] = "-x"; |
4377 | const char *message = "program input from stdin"; | |
4378 | ||
4379 | if (flag) { | |
4380 | string[1] = flag; | |
4381 | message = string; | |
4382 | } | |
4383 | ||
ae3f3efd | 4384 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 4385 | if (PL_euid != PL_uid) |
d0bafe7e | 4386 | Perl_croak(aTHX_ "No %s allowed while running setuid", message); |
3280af22 | 4387 | if (PL_egid != PL_gid) |
d0bafe7e | 4388 | Perl_croak(aTHX_ "No %s allowed while running setgid", message); |
ae3f3efd PS |
4389 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
4390 | /* PSz 29 Feb 04 | |
4391 | * Checks for UID/GID above "wrong": why disallow | |
4392 | * perl -e 'print "Hello\n"' | |
4393 | * from within setuid things?? Simply drop them: replaced by | |
4394 | * fdscript/suidscript and #ifdef IAMSUID checks below. | |
4395 | * | |
4396 | * This may be too late for command-line switches. Will catch those on | |
4397 | * the #! line, after finding the script name and setting up | |
4398 | * fdscript/suidscript. Note that suidperl does not get around to | |
4399 | * parsing (and checking) the switches on the #! line, but checks that | |
4400 | * the two sets are identical. | |
4401 | * | |
4402 | * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or | |
4403 | * instead, or would that be "too late"? (We never have suidscript, can | |
4404 | * we be sure to have fdscript?) | |
4405 | * | |
4406 | * Catch things with suidscript (in descendant of suidperl), even with | |
4407 | * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, | |
4408 | * below; but I am paranoid. | |
4409 | * | |
4410 | * Also see comments about root running a setuid script, elsewhere. | |
4411 | */ | |
cdd8118e | 4412 | if (suidscript >= 0) |
d0bafe7e | 4413 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", message); |
ae3f3efd PS |
4414 | #ifdef IAMSUID |
4415 | /* PSz 11 Nov 03 Catch it in suidperl, always! */ | |
d0bafe7e | 4416 | Perl_croak(aTHX_ "No %s allowed in suidperl", message); |
ae3f3efd | 4417 | #endif /* IAMSUID */ |
bbce6d69 | 4418 | } |
4419 | ||
1ee4443e IZ |
4420 | void |
4421 | Perl_init_debugger(pTHX) | |
748a9306 | 4422 | { |
97aff369 | 4423 | dVAR; |
c4420975 | 4424 | HV * const ostash = PL_curstash; |
1ee4443e | 4425 | |
3280af22 | 4426 | PL_curstash = PL_debstash; |
5c1737d1 NC |
4427 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args", GV_ADDMULTI, |
4428 | SVt_PVAV)))); | |
3280af22 | 4429 | AvREAL_off(PL_dbargs); |
5c1737d1 NC |
4430 | PL_DBgv = gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV); |
4431 | PL_DBline = gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
4432 | PL_DBsub = gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
4433 | PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV))); | |
ac27b0f5 | 4434 | sv_setiv(PL_DBsingle, 0); |
5c1737d1 | 4435 | PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4436 | sv_setiv(PL_DBtrace, 0); |
5c1737d1 | 4437 | PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4438 | sv_setiv(PL_DBsignal, 0); |
5c1737d1 | 4439 | PL_DBassertion = GvSV((gv_fetchpvs("DB::assertion", GV_ADDMULTI, SVt_PV))); |
06492da6 | 4440 | sv_setiv(PL_DBassertion, 0); |
1ee4443e | 4441 | PL_curstash = ostash; |
352d5a3a LW |
4442 | } |
4443 | ||
2ce36478 SM |
4444 | #ifndef STRESS_REALLOC |
4445 | #define REASONABLE(size) (size) | |
4446 | #else | |
4447 | #define REASONABLE(size) (1) /* unreasonable */ | |
4448 | #endif | |
4449 | ||
11343788 | 4450 | void |
cea2e8a9 | 4451 | Perl_init_stacks(pTHX) |
79072805 | 4452 | { |
97aff369 | 4453 | dVAR; |
e336de0d | 4454 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 4455 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 4456 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
4457 | PL_curstackinfo->si_type = PERLSI_MAIN; |
4458 | PL_curstack = PL_curstackinfo->si_stack; | |
4459 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 4460 | |
3280af22 NIS |
4461 | PL_stack_base = AvARRAY(PL_curstack); |
4462 | PL_stack_sp = PL_stack_base; | |
4463 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 4464 | |
a02a5408 | 4465 | Newx(PL_tmps_stack,REASONABLE(128),SV*); |
3280af22 NIS |
4466 | PL_tmps_floor = -1; |
4467 | PL_tmps_ix = -1; | |
4468 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 4469 | |
a02a5408 | 4470 | Newx(PL_markstack,REASONABLE(32),I32); |
3280af22 NIS |
4471 | PL_markstack_ptr = PL_markstack; |
4472 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 4473 | |
ce2f7c3b | 4474 | SET_MARK_OFFSET; |
e336de0d | 4475 | |
a02a5408 | 4476 | Newx(PL_scopestack,REASONABLE(32),I32); |
3280af22 NIS |
4477 | PL_scopestack_ix = 0; |
4478 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 4479 | |
a02a5408 | 4480 | Newx(PL_savestack,REASONABLE(128),ANY); |
3280af22 NIS |
4481 | PL_savestack_ix = 0; |
4482 | PL_savestack_max = REASONABLE(128); | |
378cc40b | 4483 | } |
33b78306 | 4484 | |
2ce36478 SM |
4485 | #undef REASONABLE |
4486 | ||
76e3520e | 4487 | STATIC void |
cea2e8a9 | 4488 | S_nuke_stacks(pTHX) |
6e72f9df | 4489 | { |
97aff369 | 4490 | dVAR; |
3280af22 NIS |
4491 | while (PL_curstackinfo->si_next) |
4492 | PL_curstackinfo = PL_curstackinfo->si_next; | |
4493 | while (PL_curstackinfo) { | |
4494 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 4495 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
4496 | Safefree(PL_curstackinfo->si_cxstack); |
4497 | Safefree(PL_curstackinfo); | |
4498 | PL_curstackinfo = p; | |
e336de0d | 4499 | } |
3280af22 NIS |
4500 | Safefree(PL_tmps_stack); |
4501 | Safefree(PL_markstack); | |
4502 | Safefree(PL_scopestack); | |
4503 | Safefree(PL_savestack); | |
378cc40b | 4504 | } |
33b78306 | 4505 | |
76e3520e | 4506 | STATIC void |
cea2e8a9 | 4507 | S_init_lexer(pTHX) |
8990e307 | 4508 | { |
97aff369 | 4509 | dVAR; |
06039172 | 4510 | PerlIO *tmpfp; |
3280af22 | 4511 | tmpfp = PL_rsfp; |
4608196e | 4512 | PL_rsfp = NULL; |
3280af22 NIS |
4513 | lex_start(PL_linestr); |
4514 | PL_rsfp = tmpfp; | |
396482e1 | 4515 | PL_subname = newSVpvs("main"); |
8990e307 LW |
4516 | } |
4517 | ||
76e3520e | 4518 | STATIC void |
cea2e8a9 | 4519 | S_init_predump_symbols(pTHX) |
45d8adaa | 4520 | { |
97aff369 | 4521 | dVAR; |
93a17b20 | 4522 | GV *tmpgv; |
af8c498a | 4523 | IO *io; |
79072805 | 4524 | |
864dbfa3 | 4525 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
fafc274c | 4526 | PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3280af22 | 4527 | GvMULTI_on(PL_stdingv); |
af8c498a | 4528 | io = GvIOp(PL_stdingv); |
a04651f4 | 4529 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 4530 | IoIFP(io) = PerlIO_stdin(); |
fafc274c | 4531 | tmpgv = gv_fetchpvs("stdin", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4532 | GvMULTI_on(tmpgv); |
b37c2d43 | 4533 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4534 | |
fafc274c | 4535 | tmpgv = gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
a5f75d66 | 4536 | GvMULTI_on(tmpgv); |
af8c498a | 4537 | io = GvIOp(tmpgv); |
a04651f4 | 4538 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4539 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 4540 | setdefout(tmpgv); |
fafc274c | 4541 | tmpgv = gv_fetchpvs("stdout", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4542 | GvMULTI_on(tmpgv); |
b37c2d43 | 4543 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4544 | |
fafc274c | 4545 | PL_stderrgv = gv_fetchpvs("STDERR", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
bf49b057 GS |
4546 | GvMULTI_on(PL_stderrgv); |
4547 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 4548 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4549 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
fafc274c | 4550 | tmpgv = gv_fetchpvs("stderr", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4551 | GvMULTI_on(tmpgv); |
b37c2d43 | 4552 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4553 | |
561b68a9 | 4554 | PL_statname = newSV(0); /* last filename we did stat on */ |
ab821d7f | 4555 | |
43c5f42d | 4556 | Safefree(PL_osname); |
bf4acbe4 | 4557 | PL_osname = savepv(OSNAME); |
79072805 | 4558 | } |
33b78306 | 4559 | |
a11ec5a9 | 4560 | void |
8f42b153 | 4561 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) |
33b78306 | 4562 | { |
97aff369 | 4563 | dVAR; |
79072805 | 4564 | argc--,argv++; /* skip name of script */ |
3280af22 | 4565 | if (PL_doswitches) { |
79072805 | 4566 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
aec46f14 | 4567 | char *s; |
79072805 LW |
4568 | if (!argv[0][1]) |
4569 | break; | |
379d538a | 4570 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
4571 | argc--,argv++; |
4572 | break; | |
4573 | } | |
155aba94 | 4574 | if ((s = strchr(argv[0], '='))) { |
b3d904f3 NC |
4575 | const char *const start_name = argv[0] + 1; |
4576 | sv_setpv(GvSV(gv_fetchpvn_flags(start_name, s - start_name, | |
4577 | TRUE, SVt_PV)), s + 1); | |
79072805 LW |
4578 | } |
4579 | else | |
71315bf2 | 4580 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1, GV_ADD, SVt_PV)),1); |
fe14fcc3 | 4581 | } |
79072805 | 4582 | } |
fafc274c | 4583 | if ((PL_argvgv = gv_fetchpvs("ARGV", GV_ADD|GV_NOTQUAL, SVt_PVAV))) { |
a11ec5a9 RGS |
4584 | GvMULTI_on(PL_argvgv); |
4585 | (void)gv_AVadd(PL_argvgv); | |
4586 | av_clear(GvAVn(PL_argvgv)); | |
4587 | for (; argc > 0; argc--,argv++) { | |
aec46f14 | 4588 | SV * const sv = newSVpv(argv[0],0); |
a11ec5a9 | 4589 | av_push(GvAVn(PL_argvgv),sv); |
ce81ff12 JH |
4590 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4591 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4592 | SvUTF8_on(sv); | |
4593 | } | |
a05d7ebb JH |
4594 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ |
4595 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4596 | } |
4597 | } | |
4598 | } | |
4599 | ||
4600 | STATIC void | |
4601 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) | |
4602 | { | |
27da23d5 | 4603 | dVAR; |
a11ec5a9 | 4604 | GV* tmpgv; |
a11ec5a9 | 4605 | |
561b68a9 | 4606 | PL_toptarget = newSV(0); |
3280af22 NIS |
4607 | sv_upgrade(PL_toptarget, SVt_PVFM); |
4608 | sv_setpvn(PL_toptarget, "", 0); | |
561b68a9 | 4609 | PL_bodytarget = newSV(0); |
3280af22 NIS |
4610 | sv_upgrade(PL_bodytarget, SVt_PVFM); |
4611 | sv_setpvn(PL_bodytarget, "", 0); | |
4612 | PL_formtarget = PL_bodytarget; | |
79072805 | 4613 | |
bbce6d69 | 4614 | TAINT; |
a11ec5a9 RGS |
4615 | |
4616 | init_argv_symbols(argc,argv); | |
4617 | ||
fafc274c | 4618 | if ((tmpgv = gv_fetchpvs("0", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
bf4acbe4 GS |
4619 | #ifdef MACOS_TRADITIONAL |
4620 | /* $0 is not majick on a Mac */ | |
4621 | sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); | |
4622 | #else | |
3280af22 | 4623 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 | 4624 | magicname("0", "0", 1); |
bf4acbe4 | 4625 | #endif |
79072805 | 4626 | } |
fafc274c | 4627 | if ((PL_envgv = gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV))) { |
79072805 | 4628 | HV *hv; |
3280af22 NIS |
4629 | GvMULTI_on(PL_envgv); |
4630 | hv = GvHVn(PL_envgv); | |
a0714e2c | 4631 | hv_magic(hv, NULL, PERL_MAGIC_env); |
2f42fcb0 | 4632 | #ifndef PERL_MICRO |
fa6a1c44 | 4633 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4634 | /* Note that if the supplied env parameter is actually a copy |
4635 | of the global environ then it may now point to free'd memory | |
4636 | if the environment has been modified since. To avoid this | |
4637 | problem we treat env==NULL as meaning 'use the default' | |
4638 | */ | |
4639 | if (!env) | |
4640 | env = environ; | |
4efc5df6 GS |
4641 | if (env != environ |
4642 | # ifdef USE_ITHREADS | |
4643 | && PL_curinterp == aTHX | |
4644 | # endif | |
4645 | ) | |
4646 | { | |
bd61b366 | 4647 | environ[0] = NULL; |
4efc5df6 | 4648 | } |
9b4eeda5 MB |
4649 | if (env) { |
4650 | char** origenv = environ; | |
27da23d5 JH |
4651 | char *s; |
4652 | SV *sv; | |
764df951 | 4653 | for (; *env; env++) { |
9b4eeda5 | 4654 | if (!(s = strchr(*env,'=')) || s == *env) |
79072805 | 4655 | continue; |
7da0e383 | 4656 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4657 | *s = '\0'; |
137443ea | 4658 | (void)strupr(*env); |
61968511 | 4659 | *s = '='; |
137443ea | 4660 | #endif |
61968511 | 4661 | sv = newSVpv(s+1, 0); |
79072805 | 4662 | (void)hv_store(hv, *env, s - *env, sv, 0); |
61968511 GA |
4663 | if (env != environ) |
4664 | mg_set(sv); | |
9b4eeda5 MB |
4665 | if (origenv != environ) { |
4666 | /* realloc has shifted us */ | |
4667 | env = (env - origenv) + environ; | |
4668 | origenv = environ; | |
4669 | } | |
764df951 | 4670 | } |
9b4eeda5 | 4671 | } |
103a7189 | 4672 | #endif /* USE_ENVIRON_ARRAY */ |
2f42fcb0 | 4673 | #endif /* !PERL_MICRO */ |
79072805 | 4674 | } |
bbce6d69 | 4675 | TAINT_NOT; |
fafc274c | 4676 | if ((tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
306196c3 | 4677 | SvREADONLY_off(GvSV(tmpgv)); |
7766f137 | 4678 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4679 | SvREADONLY_on(GvSV(tmpgv)); |
4680 | } | |
4d76a344 RGS |
4681 | #ifdef THREADS_HAVE_PIDS |
4682 | PL_ppid = (IV)getppid(); | |
4683 | #endif | |
2710853f MJD |
4684 | |
4685 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4686 | if (PL_minus_a) { | |
4687 | (void) get_av("main::F", TRUE | GV_ADDMULTI); | |
4688 | } | |
4689 | /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */ | |
4690 | (void) get_av("main::-", TRUE | GV_ADDMULTI); | |
4691 | (void) get_av("main::+", TRUE | GV_ADDMULTI); | |
33b78306 | 4692 | } |
34de22dd | 4693 | |
76e3520e | 4694 | STATIC void |
cea2e8a9 | 4695 | S_init_perllib(pTHX) |
34de22dd | 4696 | { |
97aff369 | 4697 | dVAR; |
85e6fe83 | 4698 | char *s; |
3280af22 | 4699 | if (!PL_tainting) { |
552a7a9b | 4700 | #ifndef VMS |
76e3520e | 4701 | s = PerlEnv_getenv("PERL5LIB"); |
88f5bc07 AB |
4702 | /* |
4703 | * It isn't possible to delete an environment variable with | |
42a3dd3a RGS |
4704 | * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that |
4705 | * case we treat PERL5LIB as undefined if it has a zero-length value. | |
88f5bc07 AB |
4706 | */ |
4707 | #if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV) | |
4708 | if (s && *s != '\0') | |
4709 | #else | |
85e6fe83 | 4710 | if (s) |
88f5bc07 | 4711 | #endif |
88fe16b2 | 4712 | incpush(s, TRUE, TRUE, TRUE, FALSE); |
85e6fe83 | 4713 | else |
88fe16b2 | 4714 | incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, FALSE); |
552a7a9b | 4715 | #else /* VMS */ |
4716 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4717 | * "natural" VMS idiom for a Unix path string. We allow each | |
4718 | * element to be a set of |-separated directories for compatibility. | |
4719 | */ | |
4720 | char buf[256]; | |
4721 | int idx = 0; | |
4722 | if (my_trnlnm("PERL5LIB",buf,0)) | |
88fe16b2 | 4723 | do { incpush(buf,TRUE,TRUE,TRUE,FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 4724 | else |
88fe16b2 | 4725 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE); |
552a7a9b | 4726 | #endif /* VMS */ |
85e6fe83 | 4727 | } |
34de22dd | 4728 | |
c90c0ff4 | 4729 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
65f19062 | 4730 | ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB |
df5cef82 | 4731 | */ |
4633a7c4 | 4732 | #ifdef APPLLIB_EXP |
88fe16b2 | 4733 | incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE); |
16d20bd9 | 4734 | #endif |
4633a7c4 | 4735 | |
fed7345c | 4736 | #ifdef ARCHLIB_EXP |
88fe16b2 | 4737 | incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
a0d0e21e | 4738 | #endif |
bf4acbe4 GS |
4739 | #ifdef MACOS_TRADITIONAL |
4740 | { | |
c623ac67 | 4741 | Stat_t tmpstatbuf; |
561b68a9 | 4742 | SV * privdir = newSV(0); |
bf4acbe4 GS |
4743 | char * macperl = PerlEnv_getenv("MACPERL"); |
4744 | ||
4745 | if (!macperl) | |
4746 | macperl = ""; | |
4747 | ||
4748 | Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); | |
4749 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4750 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
bf4acbe4 GS |
4751 | Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); |
4752 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4753 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
ac27b0f5 | 4754 | |
bf4acbe4 GS |
4755 | SvREFCNT_dec(privdir); |
4756 | } | |
4757 | if (!PL_tainting) | |
88fe16b2 | 4758 | incpush(":", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4759 | #else |
fed7345c | 4760 | #ifndef PRIVLIB_EXP |
65f19062 | 4761 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd | 4762 | #endif |
ac27b0f5 | 4763 | #if defined(WIN32) |
88fe16b2 | 4764 | incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE); |
00dc2f4f | 4765 | #else |
88fe16b2 | 4766 | incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
00dc2f4f | 4767 | #endif |
4633a7c4 | 4768 | |
65f19062 | 4769 | #ifdef SITEARCH_EXP |
3b290362 GS |
4770 | /* sitearch is always relative to sitelib on Windows for |
4771 | * DLL-based path intuition to work correctly */ | |
4772 | # if !defined(WIN32) | |
88fe16b2 | 4773 | incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4774 | # endif |
4775 | #endif | |
4776 | ||
4633a7c4 | 4777 | #ifdef SITELIB_EXP |
65f19062 | 4778 | # if defined(WIN32) |
574c798a | 4779 | /* this picks up sitearch as well */ |
88fe16b2 | 4780 | incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE); |
65f19062 | 4781 | # else |
88fe16b2 | 4782 | incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4783 | # endif |
4784 | #endif | |
189d1e8d | 4785 | |
c95d0e17 GA |
4786 | #if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST) |
4787 | /* Search for version-specific dirs below here */ | |
88fe16b2 | 4788 | incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE); |
81c6dfba | 4789 | #endif |
65f19062 GS |
4790 | |
4791 | #ifdef PERL_VENDORARCH_EXP | |
4ea817c6 | 4792 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4793 | * DLL-based path intuition to work correctly */ |
4794 | # if !defined(WIN32) | |
88fe16b2 | 4795 | incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4796 | # endif |
4b03c463 | 4797 | #endif |
65f19062 GS |
4798 | |
4799 | #ifdef PERL_VENDORLIB_EXP | |
4800 | # if defined(WIN32) | |
88fe16b2 | 4801 | incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE); /* this picks up vendorarch as well */ |
65f19062 | 4802 | # else |
88fe16b2 | 4803 | incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4804 | # endif |
a3635516 | 4805 | #endif |
65f19062 GS |
4806 | |
4807 | #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */ | |
88fe16b2 | 4808 | incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE); |
00dc2f4f | 4809 | #endif |
65f19062 | 4810 | |
3b777bb4 | 4811 | #ifdef PERL_OTHERLIBDIRS |
88fe16b2 | 4812 | incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE); |
3b777bb4 GS |
4813 | #endif |
4814 | ||
3280af22 | 4815 | if (!PL_tainting) |
88fe16b2 | 4816 | incpush(".", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4817 | #endif /* MACOS_TRADITIONAL */ |
774d564b | 4818 | } |
4819 | ||
a0fd4948 | 4820 | #if defined(DOSISH) || defined(EPOC) || defined(__SYMBIAN32__) |
774d564b | 4821 | # define PERLLIB_SEP ';' |
4822 | #else | |
4823 | # if defined(VMS) | |
4824 | # define PERLLIB_SEP '|' | |
4825 | # else | |
bf4acbe4 GS |
4826 | # if defined(MACOS_TRADITIONAL) |
4827 | # define PERLLIB_SEP ',' | |
4828 | # else | |
4829 | # define PERLLIB_SEP ':' | |
4830 | # endif | |
774d564b | 4831 | # endif |
4832 | #endif | |
4833 | #ifndef PERLLIB_MANGLE | |
4834 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4835 | #endif |
774d564b | 4836 | |
ad17a1ae NC |
4837 | /* Push a directory onto @INC if it exists. |
4838 | Generate a new SV if we do this, to save needing to copy the SV we push | |
4839 | onto @INC */ | |
4840 | STATIC SV * | |
4841 | S_incpush_if_exists(pTHX_ SV *dir) | |
4842 | { | |
97aff369 | 4843 | dVAR; |
ad17a1ae | 4844 | Stat_t tmpstatbuf; |
848ef955 | 4845 | if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && |
ad17a1ae NC |
4846 | S_ISDIR(tmpstatbuf.st_mode)) { |
4847 | av_push(GvAVn(PL_incgv), dir); | |
561b68a9 | 4848 | dir = newSV(0); |
ad17a1ae NC |
4849 | } |
4850 | return dir; | |
4851 | } | |
4852 | ||
76e3520e | 4853 | STATIC void |
dd374669 AL |
4854 | S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, |
4855 | bool canrelocate) | |
774d564b | 4856 | { |
97aff369 | 4857 | dVAR; |
a0714e2c | 4858 | SV *subdir = NULL; |
dd374669 | 4859 | const char *p = dir; |
774d564b | 4860 | |
3b290362 | 4861 | if (!p || !*p) |
774d564b | 4862 | return; |
4863 | ||
9c8a64f0 | 4864 | if (addsubdirs || addoldvers) { |
561b68a9 | 4865 | subdir = newSV(0); |
774d564b | 4866 | } |
4867 | ||
4868 | /* Break at all separators */ | |
4869 | while (p && *p) { | |
561b68a9 | 4870 | SV *libdir = newSV(0); |
e1ec3a88 | 4871 | const char *s; |
774d564b | 4872 | |
4873 | /* skip any consecutive separators */ | |
574c798a SR |
4874 | if (usesep) { |
4875 | while ( *p == PERLLIB_SEP ) { | |
4876 | /* Uncomment the next line for PATH semantics */ | |
396482e1 | 4877 | /* av_push(GvAVn(PL_incgv), newSVpvs(".")); */ |
574c798a SR |
4878 | p++; |
4879 | } | |
774d564b | 4880 | } |
4881 | ||
bd61b366 | 4882 | if ( usesep && (s = strchr(p, PERLLIB_SEP)) != NULL ) { |
774d564b | 4883 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
4884 | (STRLEN)(s - p)); | |
4885 | p = s + 1; | |
4886 | } | |
4887 | else { | |
4888 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
bd61b366 | 4889 | p = NULL; /* break out */ |
774d564b | 4890 | } |
bf4acbe4 | 4891 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
4892 | if (!strchr(SvPVX(libdir), ':')) { |
4893 | char buf[256]; | |
4894 | ||
4895 | sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); | |
4896 | } | |
bf4acbe4 | 4897 | if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') |
396482e1 | 4898 | sv_catpvs(libdir, ":"); |
bf4acbe4 | 4899 | #endif |
774d564b | 4900 | |
dd374669 AL |
4901 | /* Do the if() outside the #ifdef to avoid warnings about an unused |
4902 | parameter. */ | |
4903 | if (canrelocate) { | |
88fe16b2 NC |
4904 | #ifdef PERL_RELOCATABLE_INC |
4905 | /* | |
4906 | * Relocatable include entries are marked with a leading .../ | |
4907 | * | |
4908 | * The algorithm is | |
4909 | * 0: Remove that leading ".../" | |
4910 | * 1: Remove trailing executable name (anything after the last '/') | |
4911 | * from the perl path to give a perl prefix | |
4912 | * Then | |
4913 | * While the @INC element starts "../" and the prefix ends with a real | |
4914 | * directory (ie not . or ..) chop that real directory off the prefix | |
4915 | * and the leading "../" from the @INC element. ie a logical "../" | |
4916 | * cleanup | |
4917 | * Finally concatenate the prefix and the remainder of the @INC element | |
4918 | * The intent is that /usr/local/bin/perl and .../../lib/perl5 | |
4919 | * generates /usr/local/lib/perl5 | |
4920 | */ | |
890ce7af | 4921 | const char *libpath = SvPVX(libdir); |
88fe16b2 NC |
4922 | STRLEN libpath_len = SvCUR(libdir); |
4923 | if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { | |
4924 | /* Game on! */ | |
890ce7af | 4925 | SV * const caret_X = get_sv("\030", 0); |
88fe16b2 NC |
4926 | /* Going to use the SV just as a scratch buffer holding a C |
4927 | string: */ | |
4928 | SV *prefix_sv; | |
4929 | char *prefix; | |
4930 | char *lastslash; | |
4931 | ||
4932 | /* $^X is *the* source of taint if tainting is on, hence | |
4933 | SvPOK() won't be true. */ | |
4934 | assert(caret_X); | |
4935 | assert(SvPOKp(caret_X)); | |
4936 | prefix_sv = newSVpvn(SvPVX(caret_X), SvCUR(caret_X)); | |
4937 | /* Firstly take off the leading .../ | |
4938 | If all else fail we'll do the paths relative to the current | |
4939 | directory. */ | |
4940 | sv_chop(libdir, libpath + 4); | |
4941 | /* Don't use SvPV as we're intentionally bypassing taining, | |
4942 | mortal copies that the mg_get of tainting creates, and | |
4943 | corruption that seems to come via the save stack. | |
4944 | I guess that the save stack isn't correctly set up yet. */ | |
4945 | libpath = SvPVX(libdir); | |
4946 | libpath_len = SvCUR(libdir); | |
4947 | ||
4948 | /* This would work more efficiently with memrchr, but as it's | |
4949 | only a GNU extension we'd need to probe for it and | |
4950 | implement our own. Not hard, but maybe not worth it? */ | |
4951 | ||
4952 | prefix = SvPVX(prefix_sv); | |
4953 | lastslash = strrchr(prefix, '/'); | |
4954 | ||
4955 | /* First time in with the *lastslash = '\0' we just wipe off | |
4956 | the trailing /perl from (say) /usr/foo/bin/perl | |
4957 | */ | |
4958 | if (lastslash) { | |
4959 | SV *tempsv; | |
4960 | while ((*lastslash = '\0'), /* Do that, come what may. */ | |
4961 | (libpath_len >= 3 && memEQ(libpath, "../", 3) | |
4962 | && (lastslash = strrchr(prefix, '/')))) { | |
4963 | if (lastslash[1] == '\0' | |
4964 | || (lastslash[1] == '.' | |
4965 | && (lastslash[2] == '/' /* ends "/." */ | |
4966 | || (lastslash[2] == '/' | |
4967 | && lastslash[3] == '/' /* or "/.." */ | |
4968 | )))) { | |
4969 | /* Prefix ends "/" or "/." or "/..", any of which | |
4970 | are fishy, so don't do any more logical cleanup. | |
4971 | */ | |
4972 | break; | |
4973 | } | |
4974 | /* Remove leading "../" from path */ | |
4975 | libpath += 3; | |
4976 | libpath_len -= 3; | |
4977 | /* Next iteration round the loop removes the last | |
4978 | directory name from prefix by writing a '\0' in | |
4979 | the while clause. */ | |
4980 | } | |
4981 | /* prefix has been terminated with a '\0' to the correct | |
4982 | length. libpath points somewhere into the libdir SV. | |
4983 | We need to join the 2 with '/' and drop the result into | |
4984 | libdir. */ | |
4985 | tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); | |
4986 | SvREFCNT_dec(libdir); | |
4987 | /* And this is the new libdir. */ | |
4988 | libdir = tempsv; | |
4989 | if (PL_tainting && | |
4990 | (PL_uid != PL_euid || PL_gid != PL_egid)) { | |
4991 | /* Need to taint reloccated paths if running set ID */ | |
4992 | SvTAINTED_on(libdir); | |
4993 | } | |
4994 | } | |
4995 | SvREFCNT_dec(prefix_sv); | |
4996 | } | |
88fe16b2 | 4997 | #endif |
dd374669 | 4998 | } |
774d564b | 4999 | /* |
5000 | * BEFORE pushing libdir onto @INC we may first push version- and | |
5001 | * archname-specific sub-directories. | |
5002 | */ | |
9c8a64f0 | 5003 | if (addsubdirs || addoldvers) { |
29d82f8d | 5004 | #ifdef PERL_INC_VERSION_LIST |
8353b874 | 5005 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
c4420975 AL |
5006 | const char * const incverlist[] = { PERL_INC_VERSION_LIST }; |
5007 | const char * const *incver; | |
29d82f8d | 5008 | #endif |
aa689395 | 5009 | #ifdef VMS |
5010 | char *unix; | |
5011 | STRLEN len; | |
774d564b | 5012 | |
bd61b366 | 5013 | if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) { |
aa689395 | 5014 | len = strlen(unix); |
5015 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
5016 | sv_usepvn(libdir,unix,len); | |
5017 | } | |
5018 | else | |
bf49b057 | 5019 | PerlIO_printf(Perl_error_log, |
aa689395 | 5020 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 5021 | SvPV(libdir,len)); |
aa689395 | 5022 | #endif |
9c8a64f0 | 5023 | if (addsubdirs) { |
bf4acbe4 GS |
5024 | #ifdef MACOS_TRADITIONAL |
5025 | #define PERL_AV_SUFFIX_FMT "" | |
084592ab CN |
5026 | #define PERL_ARCH_FMT "%s:" |
5027 | #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT | |
bf4acbe4 GS |
5028 | #else |
5029 | #define PERL_AV_SUFFIX_FMT "/" | |
5030 | #define PERL_ARCH_FMT "/%s" | |
084592ab | 5031 | #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT |
bf4acbe4 | 5032 | #endif |
9c8a64f0 | 5033 | /* .../version/archname if -d .../version/archname */ |
084592ab | 5034 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, |
9c8a64f0 GS |
5035 | libdir, |
5036 | (int)PERL_REVISION, (int)PERL_VERSION, | |
5037 | (int)PERL_SUBVERSION, ARCHNAME); | |
ad17a1ae | 5038 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4b03c463 | 5039 | |
9c8a64f0 | 5040 | /* .../version if -d .../version */ |
084592ab | 5041 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir, |
9c8a64f0 GS |
5042 | (int)PERL_REVISION, (int)PERL_VERSION, |
5043 | (int)PERL_SUBVERSION); | |
ad17a1ae | 5044 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5045 | |
5046 | /* .../archname if -d .../archname */ | |
bf4acbe4 | 5047 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME); |
ad17a1ae NC |
5048 | subdir = S_incpush_if_exists(aTHX_ subdir); |
5049 | ||
29d82f8d | 5050 | } |
9c8a64f0 | 5051 | |
9c8a64f0 | 5052 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 5053 | if (addoldvers) { |
9c8a64f0 GS |
5054 | for (incver = incverlist; *incver; incver++) { |
5055 | /* .../xxx if -d .../xxx */ | |
bf4acbe4 | 5056 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver); |
ad17a1ae | 5057 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5058 | } |
5059 | } | |
29d82f8d | 5060 | #endif |
774d564b | 5061 | } |
5062 | ||
5063 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 5064 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 5065 | } |
ad17a1ae | 5066 | if (subdir) { |
ef97f5b3 | 5067 | assert (SvREFCNT(subdir) == 1); |
ad17a1ae NC |
5068 | SvREFCNT_dec(subdir); |
5069 | } | |
34de22dd | 5070 | } |
93a17b20 | 5071 | |
199100c8 | 5072 | |
93a17b20 | 5073 | void |
864dbfa3 | 5074 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 5075 | { |
27da23d5 | 5076 | dVAR; |
971a9dd3 | 5077 | SV *atsv; |
dd374669 | 5078 | const line_t oldline = CopLINE(PL_curcop); |
312caa8e | 5079 | CV *cv; |
22921e25 | 5080 | STRLEN len; |
6224f72b | 5081 | int ret; |
db36c5a1 | 5082 | dJMPENV; |
93a17b20 | 5083 | |
e1ec3a88 | 5084 | while (av_len(paramList) >= 0) { |
312caa8e | 5085 | cv = (CV*)av_shift(paramList); |
ece599bd RGS |
5086 | if (PL_savebegin) { |
5087 | if (paramList == PL_beginav) { | |
059a8bb7 | 5088 | /* save PL_beginav for compiler */ |
ece599bd RGS |
5089 | if (! PL_beginav_save) |
5090 | PL_beginav_save = newAV(); | |
5091 | av_push(PL_beginav_save, (SV*)cv); | |
5092 | } | |
5093 | else if (paramList == PL_checkav) { | |
5094 | /* save PL_checkav for compiler */ | |
5095 | if (! PL_checkav_save) | |
5096 | PL_checkav_save = newAV(); | |
5097 | av_push(PL_checkav_save, (SV*)cv); | |
5098 | } | |
059a8bb7 | 5099 | } else { |
81d86705 NC |
5100 | if (!PL_madskills) |
5101 | SAVEFREESV(cv); | |
059a8bb7 | 5102 | } |
14dd3ad8 | 5103 | JMPENV_PUSH(ret); |
6224f72b | 5104 | switch (ret) { |
312caa8e | 5105 | case 0: |
81d86705 NC |
5106 | #ifdef PERL_MAD |
5107 | if (PL_madskills) | |
5108 | PL_madskills |= 16384; | |
5109 | #endif | |
14dd3ad8 | 5110 | call_list_body(cv); |
81d86705 NC |
5111 | #ifdef PERL_MAD |
5112 | if (PL_madskills) | |
5113 | PL_madskills &= ~16384; | |
5114 | #endif | |
971a9dd3 | 5115 | atsv = ERRSV; |
10516c54 | 5116 | (void)SvPV_const(atsv, len); |
81d86705 NC |
5117 | if (PL_madskills && PL_minus_c && paramList == PL_beginav) |
5118 | break; /* not really trying to run, so just wing it */ | |
312caa8e CS |
5119 | if (len) { |
5120 | PL_curcop = &PL_compiling; | |
57843af0 | 5121 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5122 | if (paramList == PL_beginav) |
396482e1 | 5123 | sv_catpvs(atsv, "BEGIN failed--compilation aborted"); |
312caa8e | 5124 | else |
4f25aa18 GS |
5125 | Perl_sv_catpvf(aTHX_ atsv, |
5126 | "%s failed--call queue aborted", | |
7d30b5c4 | 5127 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
5128 | : paramList == PL_initav ? "INIT" |
5129 | : "END"); | |
312caa8e CS |
5130 | while (PL_scopestack_ix > oldscope) |
5131 | LEAVE; | |
14dd3ad8 | 5132 | JMPENV_POP; |
35c1215d | 5133 | Perl_croak(aTHX_ "%"SVf"", atsv); |
a0d0e21e | 5134 | } |
85e6fe83 | 5135 | break; |
6224f72b | 5136 | case 1: |
f86702cc | 5137 | STATUS_ALL_FAILURE; |
85e6fe83 | 5138 | /* FALL THROUGH */ |
6224f72b | 5139 | case 2: |
85e6fe83 | 5140 | /* my_exit() was called */ |
3280af22 | 5141 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 5142 | LEAVE; |
84902520 | 5143 | FREETMPS; |
3280af22 | 5144 | PL_curstash = PL_defstash; |
3280af22 | 5145 | PL_curcop = &PL_compiling; |
57843af0 | 5146 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 5147 | JMPENV_POP; |
81d86705 NC |
5148 | if (PL_madskills && PL_minus_c && paramList == PL_beginav) |
5149 | return; /* not really trying to run, so just wing it */ | |
cc3604b1 | 5150 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { |
3280af22 | 5151 | if (paramList == PL_beginav) |
cea2e8a9 | 5152 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 5153 | else |
4f25aa18 | 5154 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
7d30b5c4 | 5155 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
5156 | : paramList == PL_initav ? "INIT" |
5157 | : "END"); | |
85e6fe83 | 5158 | } |
f86702cc | 5159 | my_exit_jump(); |
85e6fe83 | 5160 | /* NOTREACHED */ |
6224f72b | 5161 | case 3: |
312caa8e CS |
5162 | if (PL_restartop) { |
5163 | PL_curcop = &PL_compiling; | |
57843af0 | 5164 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5165 | JMPENV_JUMP(3); |
85e6fe83 | 5166 | } |
bf49b057 | 5167 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
5168 | FREETMPS; |
5169 | break; | |
8990e307 | 5170 | } |
14dd3ad8 | 5171 | JMPENV_POP; |
93a17b20 | 5172 | } |
93a17b20 | 5173 | } |
93a17b20 | 5174 | |
14dd3ad8 GS |
5175 | STATIC void * |
5176 | S_call_list_body(pTHX_ CV *cv) | |
5177 | { | |
97aff369 | 5178 | dVAR; |
312caa8e | 5179 | PUSHMARK(PL_stack_sp); |
864dbfa3 | 5180 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e CS |
5181 | return NULL; |
5182 | } | |
5183 | ||
f86702cc | 5184 | void |
864dbfa3 | 5185 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 5186 | { |
97aff369 | 5187 | dVAR; |
8b73bbec | 5188 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 5189 | thr, (unsigned long) status)); |
f86702cc | 5190 | switch (status) { |
5191 | case 0: | |
5192 | STATUS_ALL_SUCCESS; | |
5193 | break; | |
5194 | case 1: | |
5195 | STATUS_ALL_FAILURE; | |
5196 | break; | |
5197 | default: | |
6ac6a52b | 5198 | STATUS_EXIT_SET(status); |
f86702cc | 5199 | break; |
5200 | } | |
5201 | my_exit_jump(); | |
5202 | } | |
5203 | ||
5204 | void | |
864dbfa3 | 5205 | Perl_my_failure_exit(pTHX) |
f86702cc | 5206 | { |
97aff369 | 5207 | dVAR; |
f86702cc | 5208 | #ifdef VMS |
fb38d079 JM |
5209 | /* We have been called to fall on our sword. The desired exit code |
5210 | * should be already set in STATUS_UNIX, but could be shifted over | |
0968cdad JM |
5211 | * by 8 bits. STATUS_UNIX_EXIT_SET will handle the cases where a |
5212 | * that code is set. | |
fb38d079 JM |
5213 | * |
5214 | * If an error code has not been set, then force the issue. | |
5215 | */ | |
0968cdad JM |
5216 | if (MY_POSIX_EXIT) { |
5217 | ||
5218 | /* In POSIX_EXIT mode follow Perl documentations and use 255 for | |
5219 | * the exit code when there isn't an error. | |
5220 | */ | |
5221 | ||
5222 | if (STATUS_UNIX == 0) | |
5223 | STATUS_UNIX_EXIT_SET(255); | |
5224 | else { | |
5225 | STATUS_UNIX_EXIT_SET(STATUS_UNIX); | |
5226 | ||
5227 | /* The exit code could have been set by $? or vmsish which | |
5228 | * means that it may not be fatal. So convert | |
5229 | * success/warning codes to fatal. | |
5230 | */ | |
5231 | if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) | |
5232 | STATUS_UNIX_EXIT_SET(255); | |
5233 | } | |
5234 | } | |
5235 | else { | |
5236 | /* Traditionally Perl on VMS always expects a Fatal Error. */ | |
5237 | if (vaxc$errno & 1) { | |
5238 | ||
5239 | /* So force success status to failure */ | |
5240 | if (STATUS_NATIVE & 1) | |
5241 | STATUS_ALL_FAILURE; | |
5242 | } | |
5243 | else { | |
5244 | if (!vaxc$errno) { | |
5245 | STATUS_UNIX = EINTR; /* In case something cares */ | |
5246 | STATUS_ALL_FAILURE; | |
5247 | } | |
5248 | else { | |
5249 | int severity; | |
5250 | STATUS_NATIVE = vaxc$errno; /* Should already be this */ | |
5251 | ||
5252 | /* Encode the severity code */ | |
5253 | severity = STATUS_NATIVE & STS$M_SEVERITY; | |
5254 | STATUS_UNIX = (severity ? severity : 1) << 8; | |
5255 | ||
5256 | /* Perl expects this to be a fatal error */ | |
5257 | if (severity != STS$K_SEVERE) | |
5258 | STATUS_ALL_FAILURE; | |
5259 | } | |
5260 | } | |
5261 | } | |
fb38d079 | 5262 | |
f86702cc | 5263 | #else |
9b599b2a | 5264 | int exitstatus; |
f86702cc | 5265 | if (errno & 255) |
e5218da5 | 5266 | STATUS_UNIX_SET(errno); |
9b599b2a | 5267 | else { |
e5218da5 | 5268 | exitstatus = STATUS_UNIX >> 8; |
9b599b2a | 5269 | if (exitstatus & 255) |
e5218da5 | 5270 | STATUS_UNIX_SET(exitstatus); |
9b599b2a | 5271 | else |
e5218da5 | 5272 | STATUS_UNIX_SET(255); |
9b599b2a | 5273 | } |
f86702cc | 5274 | #endif |
5275 | my_exit_jump(); | |
93a17b20 LW |
5276 | } |
5277 | ||
76e3520e | 5278 | STATIC void |
cea2e8a9 | 5279 | S_my_exit_jump(pTHX) |
f86702cc | 5280 | { |
27da23d5 | 5281 | dVAR; |
f86702cc | 5282 | |
3280af22 NIS |
5283 | if (PL_e_script) { |
5284 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 5285 | PL_e_script = NULL; |
f86702cc | 5286 | } |
5287 | ||
3280af22 | 5288 | POPSTACK_TO(PL_mainstack); |
f97a0ef2 RH |
5289 | dounwind(-1); |
5290 | LEAVE_SCOPE(0); | |
ff0cee69 | 5291 | |
6224f72b | 5292 | JMPENV_JUMP(2); |
f86702cc | 5293 | } |
873ef191 | 5294 | |
0cb96387 | 5295 | static I32 |
acfe0abc | 5296 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 | 5297 | { |
97aff369 | 5298 | dVAR; |
9d4ba2ae AL |
5299 | const char * const p = SvPVX_const(PL_e_script); |
5300 | const char *nl = strchr(p, '\n'); | |
5301 | ||
5302 | PERL_UNUSED_ARG(idx); | |
5303 | PERL_UNUSED_ARG(maxlen); | |
dd374669 | 5304 | |
3280af22 | 5305 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 5306 | if (nl-p == 0) { |
0cb96387 | 5307 | filter_del(read_e_script); |
873ef191 | 5308 | return 0; |
7dfe3f66 | 5309 | } |
873ef191 | 5310 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 5311 | sv_chop(PL_e_script, nl); |
873ef191 GS |
5312 | return 1; |
5313 | } | |
66610fdd RGS |
5314 | |
5315 | /* | |
5316 | * Local variables: | |
5317 | * c-indentation-style: bsd | |
5318 | * c-basic-offset: 4 | |
5319 | * indent-tabs-mode: t | |
5320 | * End: | |
5321 | * | |
37442d52 RGS |
5322 | * ex: set ts=8 sts=4 sw=4 noet: |
5323 | */ |