Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
fdf8c088 | 4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 by Larry Wall and others |
a687059c | 5 | * |
352d5a3a LW |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. | |
a687059c | 8 | * |
8d063cd8 LW |
9 | */ |
10 | ||
a0d0e21e LW |
11 | /* |
12 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
13 | */ | |
45d8adaa | 14 | |
166f8a29 DM |
15 | /* This file contains the top-level functions that are used to create, use |
16 | * and destroy a perl interpreter, plus the functions used by XS code to | |
17 | * call back into perl. Note that it does not contain the actual main() | |
ddfa107c | 18 | * function of the interpreter; that can be found in perlmain.c |
166f8a29 DM |
19 | */ |
20 | ||
ae3f3efd PS |
21 | /* PSz 12 Nov 03 |
22 | * | |
23 | * Be proud that perl(1) may proclaim: | |
24 | * Setuid Perl scripts are safer than C programs ... | |
25 | * Do not abandon (deprecate) suidperl. Do not advocate C wrappers. | |
26 | * | |
27 | * The flow was: perl starts, notices script is suid, execs suidperl with same | |
28 | * arguments; suidperl opens script, checks many things, sets itself with | |
29 | * right UID, execs perl with similar arguments but with script pre-opened on | |
30 | * /dev/fd/xxx; perl checks script is as should be and does work. This was | |
31 | * insecure: see perlsec(1) for many problems with this approach. | |
32 | * | |
33 | * The "correct" flow should be: perl starts, opens script and notices it is | |
34 | * suid, checks many things, execs suidperl with similar arguments but with | |
35 | * script on /dev/fd/xxx; suidperl checks script and /dev/fd/xxx object are | |
36 | * same, checks arguments match #! line, sets itself with right UID, execs | |
37 | * perl with same arguments; perl checks many things and does work. | |
38 | * | |
39 | * (Opening the script in perl instead of suidperl, we "lose" scripts that | |
40 | * are readable to the target UID but not to the invoker. Where did | |
41 | * unreadable scripts work anyway?) | |
42 | * | |
43 | * For now, suidperl and perl are pretty much the same large and cumbersome | |
44 | * program, so suidperl can check its argument list (see comments elsewhere). | |
45 | * | |
46 | * References: | |
47 | * Original bug report: | |
48 | * http://bugs.perl.org/index.html?req=bug_id&bug_id=20010322.218 | |
49 | * http://rt.perl.org/rt2/Ticket/Display.html?id=6511 | |
50 | * Comments and discussion with Debian: | |
51 | * http://bugs.debian.org/203426 | |
52 | * http://bugs.debian.org/220486 | |
53 | * Debian Security Advisory DSA 431-1 (does not fully fix problem): | |
54 | * http://www.debian.org/security/2004/dsa-431 | |
55 | * CVE candidate: | |
56 | * http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2003-0618 | |
57 | * Previous versions of this patch sent to perl5-porters: | |
58 | * http://www.mail-archive.com/perl5-porters@perl.org/msg71953.html | |
59 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75245.html | |
60 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75563.html | |
61 | * http://www.mail-archive.com/perl5-porters@perl.org/msg75635.html | |
62 | * | |
63 | Paul Szabo - psz@maths.usyd.edu.au http://www.maths.usyd.edu.au:8000/u/psz/ | |
64 | School of Mathematics and Statistics University of Sydney 2006 Australia | |
65 | * | |
66 | */ | |
67 | /* PSz 13 Nov 03 | |
68 | * Use truthful, neat, specific error messages. | |
69 | * Cannot always hide the truth; security must not depend on doing so. | |
70 | */ | |
71 | ||
72 | /* PSz 18 Feb 04 | |
73 | * Use global(?), thread-local fdscript for easier checks. | |
74 | * (I do not understand how we could possibly get a thread race: | |
75 | * do not all threads go through the same initialization? Or in | |
76 | * fact, are not threads started only after we get the script and | |
77 | * so know what to do? Oh well, make things super-safe...) | |
78 | */ | |
79 | ||
378cc40b | 80 | #include "EXTERN.h" |
864dbfa3 | 81 | #define PERL_IN_PERL_C |
378cc40b | 82 | #include "perl.h" |
e3321bb0 | 83 | #include "patchlevel.h" /* for local_patches */ |
378cc40b | 84 | |
011f1a1a JH |
85 | #ifdef NETWARE |
86 | #include "nwutil.h" | |
87 | char *nw_get_sitelib(const char *pl); | |
88 | #endif | |
89 | ||
df5cef82 | 90 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
91 | #ifdef I_UNISTD |
92 | #include <unistd.h> | |
93 | #endif | |
a0d0e21e | 94 | |
2aa47728 NC |
95 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
96 | # ifdef I_SYS_WAIT | |
97 | # include <sys/wait.h> | |
98 | # endif | |
bf357333 NC |
99 | # ifdef I_SYSUIO |
100 | # include <sys/uio.h> | |
101 | # endif | |
102 | ||
103 | union control_un { | |
104 | struct cmsghdr cm; | |
105 | char control[CMSG_SPACE(sizeof(int))]; | |
106 | }; | |
107 | ||
2aa47728 NC |
108 | #endif |
109 | ||
5311654c JH |
110 | #ifdef __BEOS__ |
111 | # define HZ 1000000 | |
112 | #endif | |
113 | ||
114 | #ifndef HZ | |
115 | # ifdef CLK_TCK | |
116 | # define HZ CLK_TCK | |
117 | # else | |
118 | # define HZ 60 | |
119 | # endif | |
120 | #endif | |
121 | ||
7114a2d2 | 122 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO) |
20ce7b12 | 123 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 | 124 | #endif |
125 | ||
acfe0abc | 126 | static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen); |
0cb96387 | 127 | |
a687059c LW |
128 | #ifdef IAMSUID |
129 | #ifndef DOSUID | |
130 | #define DOSUID | |
131 | #endif | |
ae3f3efd | 132 | #endif /* IAMSUID */ |
378cc40b | 133 | |
a687059c LW |
134 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
135 | #ifdef DOSUID | |
136 | #undef DOSUID | |
137 | #endif | |
138 | #endif | |
8d063cd8 | 139 | |
d6f07c05 AL |
140 | #define CALL_BODY_EVAL(myop) \ |
141 | if (PL_op == (myop)) \ | |
142 | PL_op = Perl_pp_entereval(aTHX); \ | |
143 | if (PL_op) \ | |
144 | CALLRUNOPS(aTHX); | |
145 | ||
146 | #define CALL_BODY_SUB(myop) \ | |
147 | if (PL_op == (myop)) \ | |
148 | PL_op = Perl_pp_entersub(aTHX); \ | |
149 | if (PL_op) \ | |
150 | CALLRUNOPS(aTHX); | |
151 | ||
152 | #define CALL_LIST_BODY(cv) \ | |
153 | PUSHMARK(PL_stack_sp); \ | |
154 | call_sv((SV*)(cv), G_EVAL|G_DISCARD); | |
155 | ||
e6827a76 | 156 | static void |
daa7d858 | 157 | S_init_tls_and_interp(PerlInterpreter *my_perl) |
e6827a76 | 158 | { |
27da23d5 | 159 | dVAR; |
e6827a76 NC |
160 | if (!PL_curinterp) { |
161 | PERL_SET_INTERP(my_perl); | |
3db8f154 | 162 | #if defined(USE_ITHREADS) |
e6827a76 NC |
163 | INIT_THREADS; |
164 | ALLOC_THREAD_KEY; | |
165 | PERL_SET_THX(my_perl); | |
166 | OP_REFCNT_INIT; | |
71ad1b0c | 167 | HINTS_REFCNT_INIT; |
e6827a76 | 168 | MUTEX_INIT(&PL_dollarzero_mutex); |
06d86050 | 169 | # endif |
016af4f1 DM |
170 | #ifdef PERL_IMPLICIT_CONTEXT |
171 | MUTEX_INIT(&PL_my_ctx_mutex); | |
172 | # endif | |
e6827a76 | 173 | } |
c0bce9aa NC |
174 | #if defined(USE_ITHREADS) |
175 | else | |
176 | #else | |
177 | /* This always happens for non-ithreads */ | |
178 | #endif | |
179 | { | |
e6827a76 NC |
180 | PERL_SET_THX(my_perl); |
181 | } | |
182 | } | |
06d86050 | 183 | |
32e30700 GS |
184 | #ifdef PERL_IMPLICIT_SYS |
185 | PerlInterpreter * | |
7766f137 GS |
186 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
187 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
188 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
189 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
190 | struct IPerlProc* ipP) | |
191 | { | |
192 | PerlInterpreter *my_perl; | |
9f653bb5 | 193 | /* Newx() needs interpreter, so call malloc() instead */ |
32e30700 | 194 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); |
e6827a76 | 195 | S_init_tls_and_interp(my_perl); |
32e30700 GS |
196 | Zero(my_perl, 1, PerlInterpreter); |
197 | PL_Mem = ipM; | |
7766f137 GS |
198 | PL_MemShared = ipMS; |
199 | PL_MemParse = ipMP; | |
32e30700 GS |
200 | PL_Env = ipE; |
201 | PL_StdIO = ipStd; | |
202 | PL_LIO = ipLIO; | |
203 | PL_Dir = ipD; | |
204 | PL_Sock = ipS; | |
205 | PL_Proc = ipP; | |
7cb608b5 | 206 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); |
7766f137 | 207 | |
32e30700 GS |
208 | return my_perl; |
209 | } | |
210 | #else | |
954c1994 GS |
211 | |
212 | /* | |
ccfc67b7 JH |
213 | =head1 Embedding Functions |
214 | ||
954c1994 GS |
215 | =for apidoc perl_alloc |
216 | ||
217 | Allocates a new Perl interpreter. See L<perlembed>. | |
218 | ||
219 | =cut | |
220 | */ | |
221 | ||
93a17b20 | 222 | PerlInterpreter * |
cea2e8a9 | 223 | perl_alloc(void) |
79072805 | 224 | { |
cea2e8a9 | 225 | PerlInterpreter *my_perl; |
79072805 | 226 | |
9f653bb5 | 227 | /* Newx() needs interpreter, so call malloc() instead */ |
e8ee3774 | 228 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 229 | |
e6827a76 | 230 | S_init_tls_and_interp(my_perl); |
7cb608b5 | 231 | #ifndef PERL_TRACK_MEMPOOL |
07409e01 | 232 | return (PerlInterpreter *) ZeroD(my_perl, 1, PerlInterpreter); |
7cb608b5 NC |
233 | #else |
234 | Zero(my_perl, 1, PerlInterpreter); | |
235 | INIT_TRACK_MEMPOOL(PL_memory_debug_header, my_perl); | |
236 | return my_perl; | |
237 | #endif | |
79072805 | 238 | } |
32e30700 | 239 | #endif /* PERL_IMPLICIT_SYS */ |
79072805 | 240 | |
954c1994 GS |
241 | /* |
242 | =for apidoc perl_construct | |
243 | ||
244 | Initializes a new Perl interpreter. See L<perlembed>. | |
245 | ||
246 | =cut | |
247 | */ | |
248 | ||
79072805 | 249 | void |
0cb96387 | 250 | perl_construct(pTHXx) |
79072805 | 251 | { |
27da23d5 | 252 | dVAR; |
ed6c66dd | 253 | PERL_UNUSED_ARG(my_perl); |
8990e307 | 254 | #ifdef MULTIPLICITY |
54aff467 | 255 | init_interp(); |
ac27b0f5 | 256 | PL_perl_destruct_level = 1; |
54aff467 GS |
257 | #else |
258 | if (PL_perl_destruct_level > 0) | |
259 | init_interp(); | |
260 | #endif | |
34caed6d DM |
261 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
262 | ||
263 | PL_linestr = newSV_type(SVt_PVIV); | |
264 | SvGROW(PL_linestr, 80); | |
265 | ||
266 | /* set read-only and try to insure than we wont see REFCNT==0 | |
267 | very often */ | |
268 | ||
269 | SvREADONLY_on(&PL_sv_undef); | |
270 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
271 | ||
272 | sv_setpv(&PL_sv_no,PL_No); | |
273 | /* value lookup in void context - happens to have the side effect | |
274 | of caching the numeric forms. */ | |
275 | SvIV(&PL_sv_no); | |
276 | SvNV(&PL_sv_no); | |
277 | SvREADONLY_on(&PL_sv_no); | |
278 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
279 | ||
280 | sv_setpv(&PL_sv_yes,PL_Yes); | |
281 | SvIV(&PL_sv_yes); | |
282 | SvNV(&PL_sv_yes); | |
283 | SvREADONLY_on(&PL_sv_yes); | |
284 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
285 | ||
286 | SvREADONLY_on(&PL_sv_placeholder); | |
287 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
288 | ||
289 | PL_sighandlerp = (Sighandler_t) Perl_sighandler; | |
ca0c25f6 | 290 | #ifdef PERL_USES_PL_PIDSTATUS |
34caed6d | 291 | PL_pidstatus = newHV(); |
ca0c25f6 | 292 | #endif |
79072805 | 293 | |
396482e1 | 294 | PL_rs = newSVpvs("\n"); |
dc92893f | 295 | |
cea2e8a9 | 296 | init_stacks(); |
79072805 | 297 | |
748a9306 | 298 | init_ids(); |
3280af22 | 299 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 300 | |
312caa8e | 301 | JMPENV_BOOTSTRAP; |
f86702cc | 302 | STATUS_ALL_SUCCESS; |
303 | ||
0672f40e | 304 | init_i18nl10n(1); |
36477c24 | 305 | SET_NUMERIC_STANDARD(); |
0b5b802d | 306 | |
ab821d7f | 307 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 308 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 309 | #endif |
310 | ||
52853b95 GS |
311 | #ifdef HAVE_INTERP_INTERN |
312 | sys_intern_init(); | |
313 | #endif | |
314 | ||
3a1ee7e8 | 315 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 316 | |
3280af22 NIS |
317 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
318 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
396482e1 | 319 | PL_errors = newSVpvs(""); |
48c6b404 | 320 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
321 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
322 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
1fcf4c12 | 323 | #ifdef USE_ITHREADS |
29a861e7 NC |
324 | /* First entry is an array of empty elements */ |
325 | Perl_av_create_and_push(aTHX_ &PL_regex_padav,(SV*)newAV()); | |
13137afc | 326 | PL_regex_pad = AvARRAY(PL_regex_padav); |
1fcf4c12 | 327 | #endif |
e5dd39fc | 328 | #ifdef USE_REENTRANT_API |
59bd0823 | 329 | Perl_reentrant_init(aTHX); |
e5dd39fc | 330 | #endif |
3d47000e AB |
331 | |
332 | /* Note that strtab is a rather special HV. Assumptions are made | |
333 | about not iterating on it, and not adding tie magic to it. | |
334 | It is properly deallocated in perl_destruct() */ | |
335 | PL_strtab = newHV(); | |
336 | ||
3d47000e AB |
337 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
338 | hv_ksplit(PL_strtab, 512); | |
339 | ||
0631ea03 AB |
340 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
341 | _dyld_lookup_and_bind | |
342 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
343 | #endif /* environ */ | |
344 | ||
2f42fcb0 JH |
345 | #ifndef PERL_MICRO |
346 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 347 | PL_origenviron = environ; |
2f42fcb0 | 348 | # endif |
0631ea03 AB |
349 | #endif |
350 | ||
5311654c | 351 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
dbc1d986 | 352 | * available or if the sysconf() fails, use the HZ. |
27da23d5 JH |
353 | * BeOS has those, but returns the wrong value. |
354 | * The HZ if not originally defined has been by now | |
355 | * been defined as CLK_TCK, if available. */ | |
dbc1d986 | 356 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) && !defined(__BEOS__) |
5311654c JH |
357 | PL_clocktick = sysconf(_SC_CLK_TCK); |
358 | if (PL_clocktick <= 0) | |
359 | #endif | |
360 | PL_clocktick = HZ; | |
361 | ||
081fc587 AB |
362 | PL_stashcache = newHV(); |
363 | ||
8cb289bd | 364 | PL_patchlevel = Perl_newSVpvf(aTHX_ "v%d.%d.%d", (int)PERL_REVISION, |
e6830b13 | 365 | (int)PERL_VERSION, (int)PERL_SUBVERSION); |
d7aa5382 | 366 | |
27da23d5 JH |
367 | #ifdef HAS_MMAP |
368 | if (!PL_mmap_page_size) { | |
369 | #if defined(HAS_SYSCONF) && (defined(_SC_PAGESIZE) || defined(_SC_MMAP_PAGE_SIZE)) | |
370 | { | |
371 | SETERRNO(0, SS_NORMAL); | |
372 | # ifdef _SC_PAGESIZE | |
373 | PL_mmap_page_size = sysconf(_SC_PAGESIZE); | |
374 | # else | |
375 | PL_mmap_page_size = sysconf(_SC_MMAP_PAGE_SIZE); | |
376 | # endif | |
377 | if ((long) PL_mmap_page_size < 0) { | |
378 | if (errno) { | |
44f8325f | 379 | SV * const error = ERRSV; |
d4c19fe8 | 380 | SvUPGRADE(error, SVt_PV); |
0510663f | 381 | Perl_croak(aTHX_ "panic: sysconf: %s", SvPV_nolen_const(error)); |
27da23d5 JH |
382 | } |
383 | else | |
384 | Perl_croak(aTHX_ "panic: sysconf: pagesize unknown"); | |
385 | } | |
386 | } | |
387 | #else | |
388 | # ifdef HAS_GETPAGESIZE | |
389 | PL_mmap_page_size = getpagesize(); | |
390 | # else | |
391 | # if defined(I_SYS_PARAM) && defined(PAGESIZE) | |
392 | PL_mmap_page_size = PAGESIZE; /* compiletime, bad */ | |
393 | # endif | |
394 | # endif | |
395 | #endif | |
396 | if (PL_mmap_page_size <= 0) | |
397 | Perl_croak(aTHX_ "panic: bad pagesize %" IVdf, | |
398 | (IV) PL_mmap_page_size); | |
399 | } | |
400 | #endif /* HAS_MMAP */ | |
401 | ||
402 | #if defined(HAS_TIMES) && defined(PERL_NEED_TIMESBASE) | |
403 | PL_timesbase.tms_utime = 0; | |
404 | PL_timesbase.tms_stime = 0; | |
405 | PL_timesbase.tms_cutime = 0; | |
406 | PL_timesbase.tms_cstime = 0; | |
407 | #endif | |
408 | ||
8990e307 | 409 | ENTER; |
79072805 LW |
410 | } |
411 | ||
954c1994 | 412 | /* |
62375a60 NIS |
413 | =for apidoc nothreadhook |
414 | ||
415 | Stub that provides thread hook for perl_destruct when there are | |
416 | no threads. | |
417 | ||
418 | =cut | |
419 | */ | |
420 | ||
421 | int | |
4e9e3734 | 422 | Perl_nothreadhook(pTHX) |
62375a60 | 423 | { |
96a5add6 | 424 | PERL_UNUSED_CONTEXT; |
62375a60 NIS |
425 | return 0; |
426 | } | |
427 | ||
41e4abd8 NC |
428 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
429 | void | |
430 | Perl_dump_sv_child(pTHX_ SV *sv) | |
431 | { | |
432 | ssize_t got; | |
bf357333 NC |
433 | const int sock = PL_dumper_fd; |
434 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
bf357333 NC |
435 | union control_un control; |
436 | struct msghdr msg; | |
808ad2d0 | 437 | struct iovec vec[2]; |
bf357333 | 438 | struct cmsghdr *cmptr; |
808ad2d0 NC |
439 | int returned_errno; |
440 | unsigned char buffer[256]; | |
41e4abd8 | 441 | |
bf357333 | 442 | if(sock == -1 || debug_fd == -1) |
41e4abd8 NC |
443 | return; |
444 | ||
445 | PerlIO_flush(Perl_debug_log); | |
446 | ||
bf357333 NC |
447 | /* All these shenanigans are to pass a file descriptor over to our child for |
448 | it to dump out to. We can't let it hold open the file descriptor when it | |
449 | forks, as the file descriptor it will dump to can turn out to be one end | |
450 | of pipe that some other process will wait on for EOF. (So as it would | |
b293a5f8 | 451 | be open, the wait would be forever.) */ |
bf357333 NC |
452 | |
453 | msg.msg_control = control.control; | |
454 | msg.msg_controllen = sizeof(control.control); | |
455 | /* We're a connected socket so we don't need a destination */ | |
456 | msg.msg_name = NULL; | |
457 | msg.msg_namelen = 0; | |
458 | msg.msg_iov = vec; | |
808ad2d0 | 459 | msg.msg_iovlen = 1; |
bf357333 NC |
460 | |
461 | cmptr = CMSG_FIRSTHDR(&msg); | |
462 | cmptr->cmsg_len = CMSG_LEN(sizeof(int)); | |
463 | cmptr->cmsg_level = SOL_SOCKET; | |
464 | cmptr->cmsg_type = SCM_RIGHTS; | |
465 | *((int *)CMSG_DATA(cmptr)) = 1; | |
466 | ||
467 | vec[0].iov_base = (void*)&sv; | |
468 | vec[0].iov_len = sizeof(sv); | |
469 | got = sendmsg(sock, &msg, 0); | |
41e4abd8 NC |
470 | |
471 | if(got < 0) { | |
bf357333 | 472 | perror("Debug leaking scalars parent sendmsg failed"); |
41e4abd8 NC |
473 | abort(); |
474 | } | |
bf357333 NC |
475 | if(got < sizeof(sv)) { |
476 | perror("Debug leaking scalars parent short sendmsg"); | |
41e4abd8 NC |
477 | abort(); |
478 | } | |
479 | ||
808ad2d0 NC |
480 | /* Return protocol is |
481 | int: errno value | |
482 | unsigned char: length of location string (0 for empty) | |
483 | unsigned char*: string (not terminated) | |
484 | */ | |
485 | vec[0].iov_base = (void*)&returned_errno; | |
486 | vec[0].iov_len = sizeof(returned_errno); | |
487 | vec[1].iov_base = buffer; | |
488 | vec[1].iov_len = 1; | |
489 | ||
490 | got = readv(sock, vec, 2); | |
41e4abd8 NC |
491 | |
492 | if(got < 0) { | |
493 | perror("Debug leaking scalars parent read failed"); | |
808ad2d0 | 494 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
495 | abort(); |
496 | } | |
808ad2d0 | 497 | if(got < sizeof(returned_errno) + 1) { |
41e4abd8 | 498 | perror("Debug leaking scalars parent short read"); |
808ad2d0 | 499 | PerlIO_flush(PerlIO_stderr()); |
41e4abd8 NC |
500 | abort(); |
501 | } | |
502 | ||
808ad2d0 NC |
503 | if (*buffer) { |
504 | got = read(sock, buffer + 1, *buffer); | |
505 | if(got < 0) { | |
506 | perror("Debug leaking scalars parent read 2 failed"); | |
507 | PerlIO_flush(PerlIO_stderr()); | |
508 | abort(); | |
509 | } | |
510 | ||
511 | if(got < *buffer) { | |
512 | perror("Debug leaking scalars parent short read 2"); | |
513 | PerlIO_flush(PerlIO_stderr()); | |
514 | abort(); | |
515 | } | |
516 | } | |
517 | ||
518 | if (returned_errno || *buffer) { | |
519 | Perl_warn(aTHX_ "Debug leaking scalars child failed%s%.*s with errno" | |
520 | " %d: %s", (*buffer ? " at " : ""), (int) *buffer, buffer + 1, | |
521 | returned_errno, strerror(returned_errno)); | |
41e4abd8 NC |
522 | } |
523 | } | |
524 | #endif | |
525 | ||
62375a60 | 526 | /* |
954c1994 GS |
527 | =for apidoc perl_destruct |
528 | ||
529 | Shuts down a Perl interpreter. See L<perlembed>. | |
530 | ||
531 | =cut | |
532 | */ | |
533 | ||
31d77e54 | 534 | int |
0cb96387 | 535 | perl_destruct(pTHXx) |
79072805 | 536 | { |
27da23d5 | 537 | dVAR; |
8ea43dc8 | 538 | VOL int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
a0d0e21e | 539 | HV *hv; |
2aa47728 | 540 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
2aa47728 NC |
541 | pid_t child; |
542 | #endif | |
8990e307 | 543 | |
ed6c66dd | 544 | PERL_UNUSED_ARG(my_perl); |
9d4ba2ae | 545 | |
7766f137 GS |
546 | /* wait for all pseudo-forked children to finish */ |
547 | PERL_WAIT_FOR_CHILDREN; | |
548 | ||
3280af22 | 549 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
550 | #ifdef DEBUGGING |
551 | { | |
9d4ba2ae AL |
552 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); |
553 | if (s) { | |
e1ec3a88 | 554 | const int i = atoi(s); |
5f05dabc | 555 | if (destruct_level < i) |
556 | destruct_level = i; | |
557 | } | |
4633a7c4 LW |
558 | } |
559 | #endif | |
560 | ||
27da23d5 | 561 | if (PL_exit_flags & PERL_EXIT_DESTRUCT_END) { |
f3faeb53 AB |
562 | dJMPENV; |
563 | int x = 0; | |
564 | ||
565 | JMPENV_PUSH(x); | |
1b6737cc | 566 | PERL_UNUSED_VAR(x); |
f3faeb53 AB |
567 | if (PL_endav && !PL_minus_c) |
568 | call_list(PL_scopestack_ix, PL_endav); | |
569 | JMPENV_POP; | |
26f423df | 570 | } |
f3faeb53 | 571 | LEAVE; |
a0d0e21e LW |
572 | FREETMPS; |
573 | ||
e00b64d4 | 574 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 575 | my_fflush_all(); |
e00b64d4 | 576 | |
62375a60 NIS |
577 | if (CALL_FPTR(PL_threadhook)(aTHX)) { |
578 | /* Threads hook has vetoed further cleanup */ | |
c301d606 | 579 | PL_veto_cleanup = TRUE; |
37038d91 | 580 | return STATUS_EXIT; |
62375a60 NIS |
581 | } |
582 | ||
2aa47728 NC |
583 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
584 | if (destruct_level != 0) { | |
585 | /* Fork here to create a child. Our child's job is to preserve the | |
586 | state of scalars prior to destruction, so that we can instruct it | |
587 | to dump any scalars that we later find have leaked. | |
588 | There's no subtlety in this code - it assumes POSIX, and it doesn't | |
589 | fail gracefully */ | |
590 | int fd[2]; | |
591 | ||
592 | if(socketpair(AF_UNIX, SOCK_STREAM, 0, fd)) { | |
593 | perror("Debug leaking scalars socketpair failed"); | |
594 | abort(); | |
595 | } | |
596 | ||
597 | child = fork(); | |
598 | if(child == -1) { | |
599 | perror("Debug leaking scalars fork failed"); | |
600 | abort(); | |
601 | } | |
602 | if (!child) { | |
603 | /* We are the child */ | |
3125a5a4 NC |
604 | const int sock = fd[1]; |
605 | const int debug_fd = PerlIO_fileno(Perl_debug_log); | |
606 | int f; | |
808ad2d0 NC |
607 | const char *where; |
608 | /* Our success message is an integer 0, and a char 0 */ | |
609 | static const char success[sizeof(int) + 1]; | |
3125a5a4 | 610 | |
2aa47728 | 611 | close(fd[0]); |
2aa47728 | 612 | |
3125a5a4 NC |
613 | /* We need to close all other file descriptors otherwise we end up |
614 | with interesting hangs, where the parent closes its end of a | |
615 | pipe, and sits waiting for (another) child to terminate. Only | |
616 | that child never terminates, because it never gets EOF, because | |
bf357333 NC |
617 | we also have the far end of the pipe open. We even need to |
618 | close the debugging fd, because sometimes it happens to be one | |
619 | end of a pipe, and a process is waiting on the other end for | |
620 | EOF. Normally it would be closed at some point earlier in | |
621 | destruction, but if we happen to cause the pipe to remain open, | |
622 | EOF never occurs, and we get an infinite hang. Hence all the | |
623 | games to pass in a file descriptor if it's actually needed. */ | |
3125a5a4 NC |
624 | |
625 | f = sysconf(_SC_OPEN_MAX); | |
626 | if(f < 0) { | |
808ad2d0 NC |
627 | where = "sysconf failed"; |
628 | goto abort; | |
3125a5a4 NC |
629 | } |
630 | while (f--) { | |
631 | if (f == sock) | |
632 | continue; | |
3125a5a4 NC |
633 | close(f); |
634 | } | |
635 | ||
2aa47728 NC |
636 | while (1) { |
637 | SV *target; | |
bf357333 NC |
638 | union control_un control; |
639 | struct msghdr msg; | |
640 | struct iovec vec[1]; | |
641 | struct cmsghdr *cmptr; | |
642 | ssize_t got; | |
643 | int got_fd; | |
644 | ||
645 | msg.msg_control = control.control; | |
646 | msg.msg_controllen = sizeof(control.control); | |
647 | /* We're a connected socket so we don't need a source */ | |
648 | msg.msg_name = NULL; | |
649 | msg.msg_namelen = 0; | |
650 | msg.msg_iov = vec; | |
651 | msg.msg_iovlen = sizeof(vec)/sizeof(vec[0]); | |
652 | ||
653 | vec[0].iov_base = (void*)⌖ | |
654 | vec[0].iov_len = sizeof(target); | |
655 | ||
656 | got = recvmsg(sock, &msg, 0); | |
2aa47728 NC |
657 | |
658 | if(got == 0) | |
659 | break; | |
660 | if(got < 0) { | |
808ad2d0 NC |
661 | where = "recv failed"; |
662 | goto abort; | |
2aa47728 NC |
663 | } |
664 | if(got < sizeof(target)) { | |
808ad2d0 NC |
665 | where = "short recv"; |
666 | goto abort; | |
2aa47728 | 667 | } |
bf357333 | 668 | |
808ad2d0 NC |
669 | if(!(cmptr = CMSG_FIRSTHDR(&msg))) { |
670 | where = "no cmsg"; | |
671 | goto abort; | |
672 | } | |
673 | if(cmptr->cmsg_len != CMSG_LEN(sizeof(int))) { | |
674 | where = "wrong cmsg_len"; | |
675 | goto abort; | |
676 | } | |
677 | if(cmptr->cmsg_level != SOL_SOCKET) { | |
678 | where = "wrong cmsg_level"; | |
679 | goto abort; | |
680 | } | |
681 | if(cmptr->cmsg_type != SCM_RIGHTS) { | |
682 | where = "wrong cmsg_type"; | |
683 | goto abort; | |
684 | } | |
bf357333 NC |
685 | |
686 | got_fd = *(int*)CMSG_DATA(cmptr); | |
687 | /* For our last little bit of trickery, put the file descriptor | |
688 | back into Perl_debug_log, as if we never actually closed it | |
689 | */ | |
808ad2d0 NC |
690 | if(got_fd != debug_fd) { |
691 | if (dup2(got_fd, debug_fd) == -1) { | |
692 | where = "dup2"; | |
693 | goto abort; | |
694 | } | |
695 | } | |
2aa47728 | 696 | sv_dump(target); |
bf357333 | 697 | |
2aa47728 NC |
698 | PerlIO_flush(Perl_debug_log); |
699 | ||
808ad2d0 | 700 | got = write(sock, &success, sizeof(success)); |
2aa47728 NC |
701 | |
702 | if(got < 0) { | |
808ad2d0 NC |
703 | where = "write failed"; |
704 | goto abort; | |
2aa47728 | 705 | } |
808ad2d0 NC |
706 | if(got < sizeof(success)) { |
707 | where = "short write"; | |
708 | goto abort; | |
2aa47728 NC |
709 | } |
710 | } | |
711 | _exit(0); | |
808ad2d0 NC |
712 | abort: |
713 | { | |
714 | int send_errno = errno; | |
715 | unsigned char length = (unsigned char) strlen(where); | |
716 | struct iovec failure[3] = { | |
717 | {(void*)&send_errno, sizeof(send_errno)}, | |
718 | {&length, 1}, | |
719 | {(void*)where, length} | |
720 | }; | |
721 | int got = writev(sock, failure, 3); | |
722 | /* Bad news travels fast. Faster than data. We'll get a SIGPIPE | |
723 | in the parent if we try to read from the socketpair after the | |
724 | child has exited, even if there was data to read. | |
725 | So sleep a bit to give the parent a fighting chance of | |
726 | reading the data. */ | |
727 | sleep(2); | |
728 | _exit((got == -1) ? errno : 0); | |
729 | } | |
bf357333 | 730 | /* End of child. */ |
2aa47728 | 731 | } |
41e4abd8 | 732 | PL_dumper_fd = fd[0]; |
2aa47728 NC |
733 | close(fd[1]); |
734 | } | |
735 | #endif | |
736 | ||
ff0cee69 | 737 | /* We must account for everything. */ |
738 | ||
739 | /* Destroy the main CV and syntax tree */ | |
17fbfdf6 NC |
740 | /* Do this now, because destroying ops can cause new SVs to be generated |
741 | in Perl_pad_swipe, and when running with -DDEBUG_LEAKING_SCALARS they | |
742 | PL_curcop to point to a valid op from which the filename structure | |
743 | member is copied. */ | |
744 | PL_curcop = &PL_compiling; | |
3280af22 | 745 | if (PL_main_root) { |
4e380990 DM |
746 | /* ensure comppad/curpad to refer to main's pad */ |
747 | if (CvPADLIST(PL_main_cv)) { | |
748 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
749 | } | |
3280af22 | 750 | op_free(PL_main_root); |
5f66b61c | 751 | PL_main_root = NULL; |
a0d0e21e | 752 | } |
5f66b61c | 753 | PL_main_start = NULL; |
3280af22 | 754 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 755 | PL_main_cv = NULL; |
24d3c518 | 756 | PL_dirty = TRUE; |
ff0cee69 | 757 | |
13621cfb NIS |
758 | /* Tell PerlIO we are about to tear things apart in case |
759 | we have layers which are using resources that should | |
760 | be cleaned up now. | |
761 | */ | |
762 | ||
763 | PerlIO_destruct(aTHX); | |
764 | ||
3280af22 | 765 | if (PL_sv_objcount) { |
a0d0e21e LW |
766 | /* |
767 | * Try to destruct global references. We do this first so that the | |
768 | * destructors and destructees still exist. Some sv's might remain. | |
769 | * Non-referenced objects are on their own. | |
770 | */ | |
a0d0e21e | 771 | sv_clean_objs(); |
bf9cdc68 | 772 | PL_sv_objcount = 0; |
a0de6cf5 | 773 | if (PL_defoutgv && !SvREFCNT(PL_defoutgv)) |
a0714e2c | 774 | PL_defoutgv = NULL; /* may have been freed */ |
8990e307 LW |
775 | } |
776 | ||
5cd24f17 | 777 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 | 778 | SvREFCNT_dec(PL_warnhook); |
a0714e2c | 779 | PL_warnhook = NULL; |
3280af22 | 780 | SvREFCNT_dec(PL_diehook); |
a0714e2c | 781 | PL_diehook = NULL; |
5cd24f17 | 782 | |
4b556e6c | 783 | /* call exit list functions */ |
3280af22 | 784 | while (PL_exitlistlen-- > 0) |
acfe0abc | 785 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 786 | |
3280af22 | 787 | Safefree(PL_exitlist); |
4b556e6c | 788 | |
1c4916e5 CB |
789 | PL_exitlist = NULL; |
790 | PL_exitlistlen = 0; | |
791 | ||
551a8b83 | 792 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
793 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
794 | * so we certainly shouldn't free it here | |
795 | */ | |
2f42fcb0 | 796 | #ifndef PERL_MICRO |
4b647fb0 | 797 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
50acdf95 | 798 | if (environ != PL_origenviron && !PL_use_safe_putenv |
4efc5df6 GS |
799 | #ifdef USE_ITHREADS |
800 | /* only main thread can free environ[0] contents */ | |
801 | && PL_curinterp == aTHX | |
802 | #endif | |
803 | ) | |
804 | { | |
551a8b83 JH |
805 | I32 i; |
806 | ||
807 | for (i = 0; environ[i]; i++) | |
4b420006 | 808 | safesysfree(environ[i]); |
0631ea03 | 809 | |
4b420006 JH |
810 | /* Must use safesysfree() when working with environ. */ |
811 | safesysfree(environ); | |
551a8b83 JH |
812 | |
813 | environ = PL_origenviron; | |
814 | } | |
815 | #endif | |
2f42fcb0 | 816 | #endif /* !PERL_MICRO */ |
551a8b83 | 817 | |
30985c42 JH |
818 | if (destruct_level == 0) { |
819 | ||
820 | DEBUG_P(debprofdump()); | |
821 | ||
822 | #if defined(PERLIO_LAYERS) | |
823 | /* No more IO - including error messages ! */ | |
824 | PerlIO_cleanup(aTHX); | |
825 | #endif | |
826 | ||
827 | CopFILE_free(&PL_compiling); | |
828 | CopSTASH_free(&PL_compiling); | |
829 | ||
830 | /* The exit() function will do everything that needs doing. */ | |
831 | return STATUS_EXIT; | |
832 | } | |
833 | ||
804ffa60 | 834 | /* reset so print() ends up where we expect */ |
a0714e2c | 835 | setdefout(NULL); |
804ffa60 | 836 | |
5f8cb046 DM |
837 | #ifdef USE_ITHREADS |
838 | /* the syntax tree is shared between clones | |
839 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
840 | * REGEXPs in the parent interpreter | |
841 | * we need to manually ReREFCNT_dec for the clones | |
842 | */ | |
843 | { | |
844 | I32 i = AvFILLp(PL_regex_padav) + 1; | |
c4420975 | 845 | SV * const * const ary = AvARRAY(PL_regex_padav); |
5f8cb046 DM |
846 | |
847 | while (i) { | |
c4420975 | 848 | SV * const resv = ary[--i]; |
35061a7e DM |
849 | |
850 | if (SvFLAGS(resv) & SVf_BREAK) { | |
577e12cc | 851 | /* this is PL_reg_curpm, already freed |
35061a7e DM |
852 | * flag is set in regexec.c:S_regtry |
853 | */ | |
854 | SvFLAGS(resv) &= ~SVf_BREAK; | |
3a1ee7e8 | 855 | } |
1cc8b4c5 AB |
856 | else if(SvREPADTMP(resv)) { |
857 | SvREPADTMP_off(resv); | |
858 | } | |
a560f29b NC |
859 | else if(SvIOKp(resv)) { |
860 | REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv)); | |
5f8cb046 DM |
861 | ReREFCNT_dec(re); |
862 | } | |
863 | } | |
864 | } | |
865 | SvREFCNT_dec(PL_regex_padav); | |
7d49f689 | 866 | PL_regex_padav = NULL; |
5f8cb046 DM |
867 | PL_regex_pad = NULL; |
868 | #endif | |
869 | ||
081fc587 AB |
870 | SvREFCNT_dec((SV*) PL_stashcache); |
871 | PL_stashcache = NULL; | |
872 | ||
5f05dabc | 873 | /* loosen bonds of global variables */ |
874 | ||
3280af22 NIS |
875 | if(PL_rsfp) { |
876 | (void)PerlIO_close(PL_rsfp); | |
4608196e | 877 | PL_rsfp = NULL; |
8ebc5c01 | 878 | } |
879 | ||
880 | /* Filters for program text */ | |
3280af22 | 881 | SvREFCNT_dec(PL_rsfp_filters); |
7d49f689 | 882 | PL_rsfp_filters = NULL; |
8ebc5c01 | 883 | |
84386e14 RGS |
884 | if (PL_minus_F) { |
885 | Safefree(PL_splitstr); | |
886 | PL_splitstr = NULL; | |
887 | } | |
888 | ||
8ebc5c01 | 889 | /* switches */ |
3280af22 NIS |
890 | PL_preprocess = FALSE; |
891 | PL_minus_n = FALSE; | |
892 | PL_minus_p = FALSE; | |
893 | PL_minus_l = FALSE; | |
894 | PL_minus_a = FALSE; | |
895 | PL_minus_F = FALSE; | |
896 | PL_doswitches = FALSE; | |
599cee73 | 897 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
898 | PL_doextract = FALSE; |
899 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
900 | PL_unsafe = FALSE; |
901 | ||
902 | Safefree(PL_inplace); | |
bd61b366 | 903 | PL_inplace = NULL; |
a7cb1f99 | 904 | SvREFCNT_dec(PL_patchlevel); |
3280af22 NIS |
905 | |
906 | if (PL_e_script) { | |
907 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 908 | PL_e_script = NULL; |
8ebc5c01 | 909 | } |
910 | ||
bf9cdc68 RG |
911 | PL_perldb = 0; |
912 | ||
8ebc5c01 | 913 | /* magical thingies */ |
914 | ||
7889fe52 | 915 | SvREFCNT_dec(PL_ofs_sv); /* $, */ |
a0714e2c | 916 | PL_ofs_sv = NULL; |
5f05dabc | 917 | |
7889fe52 | 918 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
a0714e2c | 919 | PL_ors_sv = NULL; |
8ebc5c01 | 920 | |
3280af22 | 921 | SvREFCNT_dec(PL_rs); /* $/ */ |
a0714e2c | 922 | PL_rs = NULL; |
dc92893f | 923 | |
d33b2eba | 924 | Safefree(PL_osname); /* $^O */ |
bd61b366 | 925 | PL_osname = NULL; |
5f05dabc | 926 | |
3280af22 | 927 | SvREFCNT_dec(PL_statname); |
a0714e2c SS |
928 | PL_statname = NULL; |
929 | PL_statgv = NULL; | |
5f05dabc | 930 | |
8ebc5c01 | 931 | /* defgv, aka *_ should be taken care of elsewhere */ |
932 | ||
8ebc5c01 | 933 | /* clean up after study() */ |
3280af22 | 934 | SvREFCNT_dec(PL_lastscream); |
a0714e2c | 935 | PL_lastscream = NULL; |
3280af22 NIS |
936 | Safefree(PL_screamfirst); |
937 | PL_screamfirst = 0; | |
938 | Safefree(PL_screamnext); | |
939 | PL_screamnext = 0; | |
8ebc5c01 | 940 | |
7d5ea4e7 GS |
941 | /* float buffer */ |
942 | Safefree(PL_efloatbuf); | |
bd61b366 | 943 | PL_efloatbuf = NULL; |
7d5ea4e7 GS |
944 | PL_efloatsize = 0; |
945 | ||
8ebc5c01 | 946 | /* startup and shutdown function lists */ |
3280af22 | 947 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 948 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 949 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 950 | SvREFCNT_dec(PL_checkav); |
ece599bd | 951 | SvREFCNT_dec(PL_checkav_save); |
3c10abe3 AG |
952 | SvREFCNT_dec(PL_unitcheckav); |
953 | SvREFCNT_dec(PL_unitcheckav_save); | |
3280af22 | 954 | SvREFCNT_dec(PL_initav); |
7d49f689 NC |
955 | PL_beginav = NULL; |
956 | PL_beginav_save = NULL; | |
957 | PL_endav = NULL; | |
958 | PL_checkav = NULL; | |
959 | PL_checkav_save = NULL; | |
3c10abe3 AG |
960 | PL_unitcheckav = NULL; |
961 | PL_unitcheckav_save = NULL; | |
7d49f689 | 962 | PL_initav = NULL; |
5618dfe8 | 963 | |
8ebc5c01 | 964 | /* shortcuts just get cleared */ |
a0714e2c SS |
965 | PL_envgv = NULL; |
966 | PL_incgv = NULL; | |
967 | PL_hintgv = NULL; | |
968 | PL_errgv = NULL; | |
969 | PL_argvgv = NULL; | |
970 | PL_argvoutgv = NULL; | |
971 | PL_stdingv = NULL; | |
972 | PL_stderrgv = NULL; | |
973 | PL_last_in_gv = NULL; | |
974 | PL_replgv = NULL; | |
975 | PL_DBgv = NULL; | |
976 | PL_DBline = NULL; | |
977 | PL_DBsub = NULL; | |
978 | PL_DBsingle = NULL; | |
979 | PL_DBtrace = NULL; | |
980 | PL_DBsignal = NULL; | |
981 | PL_DBassertion = NULL; | |
601f1833 | 982 | PL_DBcv = NULL; |
7d49f689 | 983 | PL_dbargs = NULL; |
5c284bb0 | 984 | PL_debstash = NULL; |
8ebc5c01 | 985 | |
7a1c5554 | 986 | SvREFCNT_dec(PL_argvout_stack); |
7d49f689 | 987 | PL_argvout_stack = NULL; |
8ebc5c01 | 988 | |
5c831c24 | 989 | SvREFCNT_dec(PL_modglobal); |
5c284bb0 | 990 | PL_modglobal = NULL; |
5c831c24 | 991 | SvREFCNT_dec(PL_preambleav); |
7d49f689 | 992 | PL_preambleav = NULL; |
5c831c24 | 993 | SvREFCNT_dec(PL_subname); |
a0714e2c | 994 | PL_subname = NULL; |
5c831c24 | 995 | SvREFCNT_dec(PL_linestr); |
a0714e2c | 996 | PL_linestr = NULL; |
ca0c25f6 | 997 | #ifdef PERL_USES_PL_PIDSTATUS |
5c831c24 | 998 | SvREFCNT_dec(PL_pidstatus); |
5c284bb0 | 999 | PL_pidstatus = NULL; |
ca0c25f6 | 1000 | #endif |
5c831c24 | 1001 | SvREFCNT_dec(PL_toptarget); |
a0714e2c | 1002 | PL_toptarget = NULL; |
5c831c24 | 1003 | SvREFCNT_dec(PL_bodytarget); |
a0714e2c SS |
1004 | PL_bodytarget = NULL; |
1005 | PL_formtarget = NULL; | |
5c831c24 | 1006 | |
d33b2eba | 1007 | /* free locale stuff */ |
b9582b6a | 1008 | #ifdef USE_LOCALE_COLLATE |
d33b2eba | 1009 | Safefree(PL_collation_name); |
bd61b366 | 1010 | PL_collation_name = NULL; |
b9582b6a | 1011 | #endif |
d33b2eba | 1012 | |
b9582b6a | 1013 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba | 1014 | Safefree(PL_numeric_name); |
bd61b366 | 1015 | PL_numeric_name = NULL; |
a453c169 | 1016 | SvREFCNT_dec(PL_numeric_radix_sv); |
a0714e2c | 1017 | PL_numeric_radix_sv = NULL; |
b9582b6a | 1018 | #endif |
d33b2eba | 1019 | |
5c831c24 GS |
1020 | /* clear utf8 character classes */ |
1021 | SvREFCNT_dec(PL_utf8_alnum); | |
1022 | SvREFCNT_dec(PL_utf8_alnumc); | |
1023 | SvREFCNT_dec(PL_utf8_ascii); | |
1024 | SvREFCNT_dec(PL_utf8_alpha); | |
1025 | SvREFCNT_dec(PL_utf8_space); | |
1026 | SvREFCNT_dec(PL_utf8_cntrl); | |
1027 | SvREFCNT_dec(PL_utf8_graph); | |
1028 | SvREFCNT_dec(PL_utf8_digit); | |
1029 | SvREFCNT_dec(PL_utf8_upper); | |
1030 | SvREFCNT_dec(PL_utf8_lower); | |
1031 | SvREFCNT_dec(PL_utf8_print); | |
1032 | SvREFCNT_dec(PL_utf8_punct); | |
1033 | SvREFCNT_dec(PL_utf8_xdigit); | |
1034 | SvREFCNT_dec(PL_utf8_mark); | |
1035 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 1036 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 1037 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 1038 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
1039 | SvREFCNT_dec(PL_utf8_idstart); |
1040 | SvREFCNT_dec(PL_utf8_idcont); | |
a0714e2c SS |
1041 | PL_utf8_alnum = NULL; |
1042 | PL_utf8_alnumc = NULL; | |
1043 | PL_utf8_ascii = NULL; | |
1044 | PL_utf8_alpha = NULL; | |
1045 | PL_utf8_space = NULL; | |
1046 | PL_utf8_cntrl = NULL; | |
1047 | PL_utf8_graph = NULL; | |
1048 | PL_utf8_digit = NULL; | |
1049 | PL_utf8_upper = NULL; | |
1050 | PL_utf8_lower = NULL; | |
1051 | PL_utf8_print = NULL; | |
1052 | PL_utf8_punct = NULL; | |
1053 | PL_utf8_xdigit = NULL; | |
1054 | PL_utf8_mark = NULL; | |
1055 | PL_utf8_toupper = NULL; | |
1056 | PL_utf8_totitle = NULL; | |
1057 | PL_utf8_tolower = NULL; | |
1058 | PL_utf8_tofold = NULL; | |
1059 | PL_utf8_idstart = NULL; | |
1060 | PL_utf8_idcont = NULL; | |
5c831c24 | 1061 | |
971a9dd3 | 1062 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 1063 | PerlMemShared_free(PL_compiling.cop_warnings); |
a0714e2c | 1064 | PL_compiling.cop_warnings = NULL; |
c28fe1ec NC |
1065 | Perl_refcounted_he_free(aTHX_ PL_compiling.cop_hints_hash); |
1066 | PL_compiling.cop_hints_hash = NULL; | |
05ec9bb3 NIS |
1067 | CopFILE_free(&PL_compiling); |
1068 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 1069 | |
a0d0e21e | 1070 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 1071 | |
3280af22 NIS |
1072 | hv = PL_defstash; |
1073 | PL_defstash = 0; | |
a0d0e21e | 1074 | SvREFCNT_dec(hv); |
5c831c24 | 1075 | SvREFCNT_dec(PL_curstname); |
a0714e2c | 1076 | PL_curstname = NULL; |
a0d0e21e | 1077 | |
5a844595 GS |
1078 | /* clear queued errors */ |
1079 | SvREFCNT_dec(PL_errors); | |
a0714e2c | 1080 | PL_errors = NULL; |
5a844595 | 1081 | |
a0d0e21e | 1082 | FREETMPS; |
0453d815 | 1083 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 1084 | if (PL_scopestack_ix != 0) |
9014280d | 1085 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1086 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
1087 | (long)PL_scopestack_ix); |
1088 | if (PL_savestack_ix != 0) | |
9014280d | 1089 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 1090 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
1091 | (long)PL_savestack_ix); |
1092 | if (PL_tmps_floor != -1) | |
9014280d | 1093 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 1094 | (long)PL_tmps_floor + 1); |
a0d0e21e | 1095 | if (cxstack_ix != -1) |
9014280d | 1096 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 1097 | (long)cxstack_ix + 1); |
a0d0e21e | 1098 | } |
8990e307 LW |
1099 | |
1100 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
d33b2eba | 1101 | SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */ |
3280af22 | 1102 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
5226ed68 JH |
1103 | |
1104 | /* the 2 is for PL_fdpid and PL_strtab */ | |
1105 | while (PL_sv_count > 2 && sv_clean_all()) | |
1106 | ; | |
1107 | ||
d33b2eba GS |
1108 | SvFLAGS(PL_fdpid) &= ~SVTYPEMASK; |
1109 | SvFLAGS(PL_fdpid) |= SVt_PVAV; | |
3280af22 NIS |
1110 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
1111 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
d33b2eba | 1112 | |
d4777f27 GS |
1113 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
1114 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
7d49f689 | 1115 | PL_fdpid = NULL; |
d33b2eba | 1116 | |
6c644e78 GS |
1117 | #ifdef HAVE_INTERP_INTERN |
1118 | sys_intern_clear(); | |
1119 | #endif | |
1120 | ||
6e72f9df | 1121 | /* Destruct the global string table. */ |
1122 | { | |
1123 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
1124 | * so that sv_free() won't fail on them. | |
80459961 NC |
1125 | * Now that the global string table is using a single hunk of memory |
1126 | * for both HE and HEK, we either need to explicitly unshare it the | |
1127 | * correct way, or actually free things here. | |
6e72f9df | 1128 | */ |
80459961 NC |
1129 | I32 riter = 0; |
1130 | const I32 max = HvMAX(PL_strtab); | |
c4420975 | 1131 | HE * const * const array = HvARRAY(PL_strtab); |
80459961 NC |
1132 | HE *hent = array[0]; |
1133 | ||
6e72f9df | 1134 | for (;;) { |
0453d815 | 1135 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
44f8325f | 1136 | HE * const next = HeNEXT(hent); |
9014280d | 1137 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
44f8325f | 1138 | "Unbalanced string table refcount: (%ld) for \"%s\"", |
de616631 | 1139 | (long)hent->he_valu.hent_refcount, HeKEY(hent)); |
80459961 NC |
1140 | Safefree(hent); |
1141 | hent = next; | |
6e72f9df | 1142 | } |
1143 | if (!hent) { | |
1144 | if (++riter > max) | |
1145 | break; | |
1146 | hent = array[riter]; | |
1147 | } | |
1148 | } | |
80459961 NC |
1149 | |
1150 | Safefree(array); | |
1151 | HvARRAY(PL_strtab) = 0; | |
1152 | HvTOTALKEYS(PL_strtab) = 0; | |
1153 | HvFILL(PL_strtab) = 0; | |
6e72f9df | 1154 | } |
3280af22 | 1155 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 1156 | |
e652bb2f | 1157 | #ifdef USE_ITHREADS |
c21d1a0f | 1158 | /* free the pointer tables used for cloning */ |
a0739874 | 1159 | ptr_table_free(PL_ptr_table); |
bf9cdc68 | 1160 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 1161 | #endif |
a0739874 | 1162 | |
d33b2eba GS |
1163 | /* free special SVs */ |
1164 | ||
1165 | SvREFCNT(&PL_sv_yes) = 0; | |
1166 | sv_clear(&PL_sv_yes); | |
1167 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 1168 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
1169 | |
1170 | SvREFCNT(&PL_sv_no) = 0; | |
1171 | sv_clear(&PL_sv_no); | |
1172 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 1173 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 1174 | |
9f375a43 DM |
1175 | { |
1176 | int i; | |
1177 | for (i=0; i<=2; i++) { | |
1178 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
1179 | sv_clear(PERL_DEBUG_PAD(i)); | |
1180 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
1181 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
1182 | } | |
1183 | } | |
1184 | ||
0453d815 | 1185 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 1186 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 1187 | |
eba0f806 DM |
1188 | #ifdef DEBUG_LEAKING_SCALARS |
1189 | if (PL_sv_count != 0) { | |
1190 | SV* sva; | |
1191 | SV* sv; | |
1192 | register SV* svend; | |
1193 | ||
1194 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { | |
1195 | svend = &sva[SvREFCNT(sva)]; | |
1196 | for (sv = sva + 1; sv < svend; ++sv) { | |
1197 | if (SvTYPE(sv) != SVTYPEMASK) { | |
a548cda8 | 1198 | PerlIO_printf(Perl_debug_log, "leaked: sv=0x%p" |
61b61456 | 1199 | " flags=0x%"UVxf |
fd0854ff DM |
1200 | " refcnt=%"UVuf pTHX__FORMAT "\n" |
1201 | "\tallocated at %s:%d %s %s%s\n", | |
6c9570dc | 1202 | (void*)sv, sv->sv_flags, sv->sv_refcnt pTHX__VALUE, |
fd0854ff DM |
1203 | sv->sv_debug_file ? sv->sv_debug_file : "(unknown)", |
1204 | sv->sv_debug_line, | |
1205 | sv->sv_debug_inpad ? "for" : "by", | |
1206 | sv->sv_debug_optype ? | |
1207 | PL_op_name[sv->sv_debug_optype]: "(none)", | |
1208 | sv->sv_debug_cloned ? " (cloned)" : "" | |
1209 | ); | |
2aa47728 | 1210 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
41e4abd8 | 1211 | Perl_dump_sv_child(aTHX_ sv); |
2aa47728 | 1212 | #endif |
eba0f806 DM |
1213 | } |
1214 | } | |
1215 | } | |
1216 | } | |
2aa47728 NC |
1217 | #ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
1218 | { | |
1219 | int status; | |
1220 | fd_set rset; | |
1221 | /* Wait for up to 4 seconds for child to terminate. | |
1222 | This seems to be the least effort way of timing out on reaping | |
1223 | its exit status. */ | |
1224 | struct timeval waitfor = {4, 0}; | |
41e4abd8 | 1225 | int sock = PL_dumper_fd; |
2aa47728 NC |
1226 | |
1227 | shutdown(sock, 1); | |
1228 | FD_ZERO(&rset); | |
1229 | FD_SET(sock, &rset); | |
1230 | select(sock + 1, &rset, NULL, NULL, &waitfor); | |
1231 | waitpid(child, &status, WNOHANG); | |
1232 | close(sock); | |
1233 | } | |
1234 | #endif | |
eba0f806 | 1235 | #endif |
bf9cdc68 | 1236 | PL_sv_count = 0; |
eba0f806 | 1237 | |
f1fac472 NC |
1238 | #ifdef PERL_DEBUG_READONLY_OPS |
1239 | free(PL_slabs); | |
1240 | PL_slabs = NULL; | |
1241 | PL_slab_count = 0; | |
1242 | #endif | |
eba0f806 | 1243 | |
56a2bab7 | 1244 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
1245 | /* No more IO - including error messages ! */ |
1246 | PerlIO_cleanup(aTHX); | |
1247 | #endif | |
1248 | ||
9f4bd222 | 1249 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
a0714e2c | 1250 | as currently layers use it rather than NULL as a marker |
9f4bd222 NIS |
1251 | for no arg - and will try and SvREFCNT_dec it. |
1252 | */ | |
1253 | SvREFCNT(&PL_sv_undef) = 0; | |
1254 | SvREADONLY_off(&PL_sv_undef); | |
1255 | ||
3280af22 | 1256 | Safefree(PL_origfilename); |
bd61b366 | 1257 | PL_origfilename = NULL; |
3280af22 | 1258 | Safefree(PL_reg_start_tmp); |
bf9cdc68 RG |
1259 | PL_reg_start_tmp = (char**)NULL; |
1260 | PL_reg_start_tmpl = 0; | |
43c5f42d | 1261 | Safefree(PL_reg_curpm); |
82ba1be6 | 1262 | Safefree(PL_reg_poscache); |
dd28f7bb | 1263 | free_tied_hv_pool(); |
3280af22 | 1264 | Safefree(PL_op_mask); |
cf36064f | 1265 | Safefree(PL_psig_ptr); |
bf9cdc68 | 1266 | PL_psig_ptr = (SV**)NULL; |
cf36064f | 1267 | Safefree(PL_psig_name); |
bf9cdc68 | 1268 | PL_psig_name = (SV**)NULL; |
2c2666fc | 1269 | Safefree(PL_bitcount); |
bd61b366 | 1270 | PL_bitcount = NULL; |
ce08f86c | 1271 | Safefree(PL_psig_pend); |
bf9cdc68 | 1272 | PL_psig_pend = (int*)NULL; |
a0714e2c | 1273 | PL_formfeed = NULL; |
6e72f9df | 1274 | nuke_stacks(); |
bf9cdc68 RG |
1275 | PL_tainting = FALSE; |
1276 | PL_taint_warn = FALSE; | |
3280af22 | 1277 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 1278 | PL_debug = 0; |
ac27b0f5 | 1279 | |
a0d0e21e | 1280 | DEBUG_P(debprofdump()); |
d33b2eba | 1281 | |
e5dd39fc | 1282 | #ifdef USE_REENTRANT_API |
10bc17b6 | 1283 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
1284 | #endif |
1285 | ||
612f20c3 GS |
1286 | sv_free_arenas(); |
1287 | ||
5d9a96ca DM |
1288 | while (PL_regmatch_slab) { |
1289 | regmatch_slab *s = PL_regmatch_slab; | |
1290 | PL_regmatch_slab = PL_regmatch_slab->next; | |
1291 | Safefree(s); | |
1292 | } | |
1293 | ||
fc36a67e | 1294 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
1295 | ||
3280af22 | 1296 | if (PL_mess_sv) { |
f350b448 NC |
1297 | /* we know that type == SVt_PVMG */ |
1298 | ||
9c63abab | 1299 | /* it could have accumulated taint magic */ |
f350b448 NC |
1300 | MAGIC* mg; |
1301 | MAGIC* moremagic; | |
1302 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
1303 | moremagic = mg->mg_moremagic; | |
1304 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global | |
1305 | && mg->mg_len >= 0) | |
1306 | Safefree(mg->mg_ptr); | |
1307 | Safefree(mg); | |
9c63abab | 1308 | } |
f350b448 | 1309 | |
fc36a67e | 1310 | /* we know that type >= SVt_PV */ |
8bd4d4c5 | 1311 | SvPV_free(PL_mess_sv); |
3280af22 NIS |
1312 | Safefree(SvANY(PL_mess_sv)); |
1313 | Safefree(PL_mess_sv); | |
a0714e2c | 1314 | PL_mess_sv = NULL; |
fc36a67e | 1315 | } |
37038d91 | 1316 | return STATUS_EXIT; |
79072805 LW |
1317 | } |
1318 | ||
954c1994 GS |
1319 | /* |
1320 | =for apidoc perl_free | |
1321 | ||
1322 | Releases a Perl interpreter. See L<perlembed>. | |
1323 | ||
1324 | =cut | |
1325 | */ | |
1326 | ||
79072805 | 1327 | void |
0cb96387 | 1328 | perl_free(pTHXx) |
79072805 | 1329 | { |
5174512c NC |
1330 | dVAR; |
1331 | ||
c301d606 DM |
1332 | if (PL_veto_cleanup) |
1333 | return; | |
1334 | ||
7cb608b5 | 1335 | #ifdef PERL_TRACK_MEMPOOL |
55ef9aae MHM |
1336 | { |
1337 | /* | |
1338 | * Don't free thread memory if PERL_DESTRUCT_LEVEL is set to a non-zero | |
1339 | * value as we're probably hunting memory leaks then | |
1340 | */ | |
1341 | const char * const s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"); | |
1342 | if (!s || atoi(s) == 0) { | |
1343 | /* Emulate the PerlHost behaviour of free()ing all memory allocated in this | |
1344 | thread at thread exit. */ | |
1345 | while(aTHXx->Imemory_debug_header.next != &(aTHXx->Imemory_debug_header)) | |
1346 | safesysfree(sTHX + (char *)(aTHXx->Imemory_debug_header.next)); | |
1347 | } | |
1348 | } | |
7cb608b5 NC |
1349 | #endif |
1350 | ||
acfe0abc | 1351 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 1352 | # if defined(PERL_IMPLICIT_SYS) |
b36c9a52 | 1353 | { |
acfe0abc | 1354 | # ifdef NETWARE |
7af12a34 | 1355 | void *host = nw_internal_host; |
acfe0abc | 1356 | # else |
7af12a34 | 1357 | void *host = w32_internal_host; |
acfe0abc | 1358 | # endif |
7af12a34 | 1359 | PerlMem_free(aTHXx); |
acfe0abc | 1360 | # ifdef NETWARE |
7af12a34 | 1361 | nw_delete_internal_host(host); |
acfe0abc | 1362 | # else |
7af12a34 | 1363 | win32_delete_internal_host(host); |
acfe0abc | 1364 | # endif |
7af12a34 | 1365 | } |
1c0ca838 GS |
1366 | # else |
1367 | PerlMem_free(aTHXx); | |
1368 | # endif | |
acfe0abc GS |
1369 | #else |
1370 | PerlMem_free(aTHXx); | |
76e3520e | 1371 | #endif |
79072805 LW |
1372 | } |
1373 | ||
b7f7fff6 | 1374 | #if defined(USE_ITHREADS) |
aebd1ac7 GA |
1375 | /* provide destructors to clean up the thread key when libperl is unloaded */ |
1376 | #ifndef WIN32 /* handled during DLL_PROCESS_DETACH in win32/perllib.c */ | |
1377 | ||
826955bd | 1378 | #if defined(__hpux) && !(defined(__ux_version) && __ux_version <= 1020) && !defined(__GNUC__) |
aebd1ac7 | 1379 | #pragma fini "perl_fini" |
666ad1ec GA |
1380 | #elif defined(__sun) && !defined(__GNUC__) |
1381 | #pragma fini (perl_fini) | |
aebd1ac7 GA |
1382 | #endif |
1383 | ||
0dbb1585 AL |
1384 | static void |
1385 | #if defined(__GNUC__) | |
1386 | __attribute__((destructor)) | |
aebd1ac7 | 1387 | #endif |
de009b76 | 1388 | perl_fini(void) |
aebd1ac7 | 1389 | { |
27da23d5 | 1390 | dVAR; |
c301d606 | 1391 | if (PL_curinterp && !PL_veto_cleanup) |
aebd1ac7 GA |
1392 | FREE_THREAD_KEY; |
1393 | } | |
1394 | ||
1395 | #endif /* WIN32 */ | |
1396 | #endif /* THREADS */ | |
1397 | ||
4b556e6c | 1398 | void |
864dbfa3 | 1399 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 1400 | { |
97aff369 | 1401 | dVAR; |
3280af22 NIS |
1402 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
1403 | PL_exitlist[PL_exitlistlen].fn = fn; | |
1404 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
1405 | ++PL_exitlistlen; | |
4b556e6c JD |
1406 | } |
1407 | ||
56cf6df8 RGS |
1408 | #ifdef HAS_PROCSELFEXE |
1409 | /* This is a function so that we don't hold on to MAXPATHLEN | |
1410 | bytes of stack longer than necessary | |
1411 | */ | |
1412 | STATIC void | |
e1ec3a88 | 1413 | S_procself_val(pTHX_ SV *sv, const char *arg0) |
56cf6df8 RGS |
1414 | { |
1415 | char buf[MAXPATHLEN]; | |
1416 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); | |
1417 | ||
1418 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
1419 | includes a spurious NUL which will cause $^X to fail in system | |
1420 | or backticks (this will prevent extensions from being built and | |
1421 | many tests from working). readlink is not meant to add a NUL. | |
1422 | Normal readlink works fine. | |
1423 | */ | |
1424 | if (len > 0 && buf[len-1] == '\0') { | |
1425 | len--; | |
1426 | } | |
1427 | ||
1428 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes | |
1429 | returning the text "unknown" from the readlink rather than the path | |
1430 | to the executable (or returning an error from the readlink). Any valid | |
1431 | path has a '/' in it somewhere, so use that to validate the result. | |
1432 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
1433 | */ | |
1434 | if (len > 0 && memchr(buf, '/', len)) { | |
1435 | sv_setpvn(sv,buf,len); | |
1436 | } | |
1437 | else { | |
1438 | sv_setpv(sv,arg0); | |
1439 | } | |
1440 | } | |
1441 | #endif /* HAS_PROCSELFEXE */ | |
b7975bdd NC |
1442 | |
1443 | STATIC void | |
1444 | S_set_caret_X(pTHX) { | |
97aff369 | 1445 | dVAR; |
fafc274c | 1446 | GV* tmpgv = gv_fetchpvs("\030", GV_ADD|GV_NOTQUAL, SVt_PV); /* $^X */ |
b7975bdd NC |
1447 | if (tmpgv) { |
1448 | #ifdef HAS_PROCSELFEXE | |
1449 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
1450 | #else | |
1451 | #ifdef OS2 | |
c69033f2 | 1452 | sv_setpv(GvSVn(tmpgv), os2_execname(aTHX)); |
b7975bdd | 1453 | #else |
c69033f2 | 1454 | sv_setpv(GvSVn(tmpgv),PL_origargv[0]); |
b7975bdd NC |
1455 | #endif |
1456 | #endif | |
1457 | } | |
1458 | } | |
1459 | ||
954c1994 GS |
1460 | /* |
1461 | =for apidoc perl_parse | |
1462 | ||
1463 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
1464 | ||
1465 | =cut | |
1466 | */ | |
1467 | ||
79072805 | 1468 | int |
0cb96387 | 1469 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 1470 | { |
27da23d5 | 1471 | dVAR; |
6224f72b | 1472 | I32 oldscope; |
6224f72b | 1473 | int ret; |
db36c5a1 | 1474 | dJMPENV; |
8d063cd8 | 1475 | |
ed6c66dd | 1476 | PERL_UNUSED_ARG(my_perl); |
9d4ba2ae | 1477 | |
a687059c LW |
1478 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
1479 | #ifdef IAMSUID | |
1480 | #undef IAMSUID | |
cea2e8a9 | 1481 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c | 1482 | setuid perl scripts securely.\n"); |
ae3f3efd | 1483 | #endif /* IAMSUID */ |
a687059c LW |
1484 | #endif |
1485 | ||
b0891165 JH |
1486 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
1487 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
103dd899 | 1488 | * This MUST be done before any hash stores or fetches take place. |
008fb0c0 NC |
1489 | * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) |
1490 | * yourself, it is your responsibility to provide a good random seed! | |
830b38bd | 1491 | * You can also define PERL_HASH_SEED in compile time, see hv.h. */ |
008fb0c0 NC |
1492 | if (!PL_rehash_seed_set) |
1493 | PL_rehash_seed = get_hash_seed(); | |
b0891165 | 1494 | { |
9d4ba2ae | 1495 | const char * const s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
bed60192 | 1496 | |
1b6737cc AL |
1497 | if (s && (atoi(s) == 1)) |
1498 | PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", PL_rehash_seed); | |
b0891165 JH |
1499 | } |
1500 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
1501 | ||
3280af22 | 1502 | PL_origargc = argc; |
e2975953 | 1503 | PL_origargv = argv; |
a0d0e21e | 1504 | |
a2722ac9 GA |
1505 | if (PL_origalen != 0) { |
1506 | PL_origalen = 1; /* don't use old PL_origalen if perl_parse() is called again */ | |
1507 | } | |
1508 | else { | |
3cb9023d JH |
1509 | /* Set PL_origalen be the sum of the contiguous argv[] |
1510 | * elements plus the size of the env in case that it is | |
e9137a8e | 1511 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
3cb9023d JH |
1512 | * as the maximum modifiable length of $0. In the worst case |
1513 | * the area we are able to modify is limited to the size of | |
43c32782 | 1514 | * the original argv[0]. (See below for 'contiguous', though.) |
3cb9023d | 1515 | * --jhi */ |
e1ec3a88 | 1516 | const char *s = NULL; |
54bfe034 | 1517 | int i; |
1b6737cc | 1518 | const UV mask = |
7d8e7db3 | 1519 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); |
43c32782 | 1520 | /* Do the mask check only if the args seem like aligned. */ |
1b6737cc | 1521 | const UV aligned = |
43c32782 JH |
1522 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); |
1523 | ||
1524 | /* See if all the arguments are contiguous in memory. Note | |
1525 | * that 'contiguous' is a loose term because some platforms | |
1526 | * align the argv[] and the envp[]. If the arguments look | |
1527 | * like non-aligned, assume that they are 'strictly' or | |
1528 | * 'traditionally' contiguous. If the arguments look like | |
1529 | * aligned, we just check that they are within aligned | |
1530 | * PTRSIZE bytes. As long as no system has something bizarre | |
1531 | * like the argv[] interleaved with some other data, we are | |
1532 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
c8941eeb JH |
1533 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1534 | while (*s) s++; | |
1535 | for (i = 1; i < PL_origargc; i++) { | |
1536 | if ((PL_origargv[i] == s + 1 | |
43c32782 | 1537 | #ifdef OS2 |
c8941eeb | 1538 | || PL_origargv[i] == s + 2 |
43c32782 | 1539 | #endif |
c8941eeb JH |
1540 | ) |
1541 | || | |
1542 | (aligned && | |
1543 | (PL_origargv[i] > s && | |
1544 | PL_origargv[i] <= | |
1545 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1546 | ) | |
1547 | { | |
1548 | s = PL_origargv[i]; | |
1549 | while (*s) s++; | |
1550 | } | |
1551 | else | |
1552 | break; | |
54bfe034 | 1553 | } |
54bfe034 | 1554 | } |
a4a109c2 JD |
1555 | |
1556 | #ifndef PERL_USE_SAFE_PUTENV | |
3cb9023d | 1557 | /* Can we grab env area too to be used as the area for $0? */ |
a4a109c2 | 1558 | if (s && PL_origenviron && !PL_use_safe_putenv) { |
9d419b5f | 1559 | if ((PL_origenviron[0] == s + 1) |
43c32782 JH |
1560 | || |
1561 | (aligned && | |
1562 | (PL_origenviron[0] > s && | |
1563 | PL_origenviron[0] <= | |
1564 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1565 | ) | |
1566 | { | |
9d419b5f | 1567 | #ifndef OS2 /* ENVIRON is read by the kernel too. */ |
43c32782 JH |
1568 | s = PL_origenviron[0]; |
1569 | while (*s) s++; | |
1570 | #endif | |
bd61b366 | 1571 | my_setenv("NoNe SuCh", NULL); |
43c32782 JH |
1572 | /* Force copy of environment. */ |
1573 | for (i = 1; PL_origenviron[i]; i++) { | |
1574 | if (PL_origenviron[i] == s + 1 | |
1575 | || | |
1576 | (aligned && | |
1577 | (PL_origenviron[i] > s && | |
1578 | PL_origenviron[i] <= | |
1579 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1580 | ) | |
1581 | { | |
1582 | s = PL_origenviron[i]; | |
1583 | while (*s) s++; | |
1584 | } | |
1585 | else | |
1586 | break; | |
54bfe034 | 1587 | } |
43c32782 | 1588 | } |
54bfe034 | 1589 | } |
a4a109c2 JD |
1590 | #endif /* !defined(PERL_USE_SAFE_PUTENV) */ |
1591 | ||
2d2af554 | 1592 | PL_origalen = s ? s - PL_origargv[0] + 1 : 0; |
54bfe034 JH |
1593 | } |
1594 | ||
3280af22 | 1595 | if (PL_do_undump) { |
a0d0e21e LW |
1596 | |
1597 | /* Come here if running an undumped a.out. */ | |
1598 | ||
3280af22 NIS |
1599 | PL_origfilename = savepv(argv[0]); |
1600 | PL_do_undump = FALSE; | |
a0d0e21e | 1601 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1602 | init_ids(); |
b7975bdd NC |
1603 | assert (!PL_tainted); |
1604 | TAINT; | |
1605 | S_set_caret_X(aTHX); | |
1606 | TAINT_NOT; | |
a0d0e21e LW |
1607 | init_postdump_symbols(argc,argv,env); |
1608 | return 0; | |
1609 | } | |
1610 | ||
3280af22 | 1611 | if (PL_main_root) { |
3280af22 | 1612 | op_free(PL_main_root); |
5f66b61c | 1613 | PL_main_root = NULL; |
ff0cee69 | 1614 | } |
5f66b61c | 1615 | PL_main_start = NULL; |
3280af22 | 1616 | SvREFCNT_dec(PL_main_cv); |
601f1833 | 1617 | PL_main_cv = NULL; |
79072805 | 1618 | |
3280af22 NIS |
1619 | time(&PL_basetime); |
1620 | oldscope = PL_scopestack_ix; | |
599cee73 | 1621 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1622 | |
14dd3ad8 | 1623 | JMPENV_PUSH(ret); |
6224f72b | 1624 | switch (ret) { |
312caa8e | 1625 | case 0: |
14dd3ad8 | 1626 | parse_body(env,xsinit); |
3c10abe3 AG |
1627 | if (PL_unitcheckav) |
1628 | call_list(oldscope, PL_unitcheckav); | |
7d30b5c4 GS |
1629 | if (PL_checkav) |
1630 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1631 | ret = 0; |
1632 | break; | |
6224f72b GS |
1633 | case 1: |
1634 | STATUS_ALL_FAILURE; | |
1635 | /* FALL THROUGH */ | |
1636 | case 2: | |
1637 | /* my_exit() was called */ | |
3280af22 | 1638 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1639 | LEAVE; |
1640 | FREETMPS; | |
3280af22 | 1641 | PL_curstash = PL_defstash; |
3c10abe3 AG |
1642 | if (PL_unitcheckav) |
1643 | call_list(oldscope, PL_unitcheckav); | |
7d30b5c4 GS |
1644 | if (PL_checkav) |
1645 | call_list(oldscope, PL_checkav); | |
37038d91 | 1646 | ret = STATUS_EXIT; |
14dd3ad8 | 1647 | break; |
6224f72b | 1648 | case 3: |
bf49b057 | 1649 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1650 | ret = 1; |
1651 | break; | |
6224f72b | 1652 | } |
14dd3ad8 GS |
1653 | JMPENV_POP; |
1654 | return ret; | |
1655 | } | |
1656 | ||
312caa8e | 1657 | STATIC void * |
14dd3ad8 | 1658 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1659 | { |
27da23d5 | 1660 | dVAR; |
312caa8e | 1661 | int argc = PL_origargc; |
8f42b153 | 1662 | char **argv = PL_origargv; |
e1ec3a88 | 1663 | const char *scriptname = NULL; |
312caa8e | 1664 | VOL bool dosearch = FALSE; |
e1ec3a88 | 1665 | const char *validarg = ""; |
312caa8e | 1666 | register SV *sv; |
47f56822 | 1667 | register char *s, c; |
bd61b366 | 1668 | const char *cddir = NULL; |
ab019eaa | 1669 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1670 | bool minus_f = FALSE; |
ab019eaa | 1671 | #endif |
312caa8e | 1672 | |
3280af22 | 1673 | sv_setpvn(PL_linestr,"",0); |
396482e1 | 1674 | sv = newSVpvs(""); /* first used for -I flags */ |
6224f72b GS |
1675 | SAVEFREESV(sv); |
1676 | init_main_stash(); | |
54310121 | 1677 | |
6224f72b GS |
1678 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1679 | if (argv[0][0] != '-' || !argv[0][1]) | |
1680 | break; | |
1681 | #ifdef DOSUID | |
1682 | if (*validarg) | |
1683 | validarg = " PHOOEY "; | |
1684 | else | |
1685 | validarg = argv[0]; | |
ae3f3efd PS |
1686 | /* |
1687 | * Can we rely on the kernel to start scripts with argv[1] set to | |
1688 | * contain all #! line switches (the whole line)? (argv[0] is set to | |
1689 | * the interpreter name, argv[2] to the script name; argv[3] and | |
1690 | * above may contain other arguments.) | |
1691 | */ | |
13281fa4 | 1692 | #endif |
6224f72b GS |
1693 | s = argv[0]+1; |
1694 | reswitch: | |
47f56822 | 1695 | switch ((c = *s)) { |
729a02f2 | 1696 | case 'C': |
1d5472a9 GS |
1697 | #ifndef PERL_STRICT_CR |
1698 | case '\r': | |
1699 | #endif | |
6224f72b GS |
1700 | case ' ': |
1701 | case '0': | |
1702 | case 'F': | |
1703 | case 'a': | |
1704 | case 'c': | |
1705 | case 'd': | |
1706 | case 'D': | |
1707 | case 'h': | |
1708 | case 'i': | |
1709 | case 'l': | |
1710 | case 'M': | |
1711 | case 'm': | |
1712 | case 'n': | |
1713 | case 'p': | |
1714 | case 's': | |
1715 | case 'u': | |
1716 | case 'U': | |
1717 | case 'v': | |
599cee73 PM |
1718 | case 'W': |
1719 | case 'X': | |
6224f72b | 1720 | case 'w': |
06492da6 | 1721 | case 'A': |
97bd5664 | 1722 | if ((s = moreswitches(s))) |
6224f72b GS |
1723 | goto reswitch; |
1724 | break; | |
33b78306 | 1725 | |
1dbad523 | 1726 | case 't': |
22f7c9c9 | 1727 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
317ea90d MS |
1728 | if( !PL_tainting ) { |
1729 | PL_taint_warn = TRUE; | |
1730 | PL_tainting = TRUE; | |
1731 | } | |
1732 | s++; | |
1733 | goto reswitch; | |
6224f72b | 1734 | case 'T': |
22f7c9c9 | 1735 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
3280af22 | 1736 | PL_tainting = TRUE; |
317ea90d | 1737 | PL_taint_warn = FALSE; |
6224f72b GS |
1738 | s++; |
1739 | goto reswitch; | |
f86702cc | 1740 | |
bc9b29db RH |
1741 | case 'E': |
1742 | PL_minus_E = TRUE; | |
1743 | /* FALL THROUGH */ | |
6224f72b | 1744 | case 'e': |
bf4acbe4 GS |
1745 | #ifdef MACOS_TRADITIONAL |
1746 | /* ignore -e for Dev:Pseudo argument */ | |
1747 | if (argv[1] && !strcmp(argv[1], "Dev:Pseudo")) | |
e55ac0fa | 1748 | break; |
bf4acbe4 | 1749 | #endif |
a52eba0e | 1750 | forbid_setid('e', -1); |
3280af22 | 1751 | if (!PL_e_script) { |
396482e1 | 1752 | PL_e_script = newSVpvs(""); |
0cb96387 | 1753 | filter_add(read_e_script, NULL); |
6224f72b GS |
1754 | } |
1755 | if (*++s) | |
3280af22 | 1756 | sv_catpv(PL_e_script, s); |
6224f72b | 1757 | else if (argv[1]) { |
3280af22 | 1758 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1759 | argc--,argv++; |
1760 | } | |
1761 | else | |
47f56822 | 1762 | Perl_croak(aTHX_ "No code specified for -%c", c); |
396482e1 | 1763 | sv_catpvs(PL_e_script, "\n"); |
6224f72b | 1764 | break; |
afe37c7d | 1765 | |
20ef40cf | 1766 | case 'f': |
f5542d3a | 1767 | #ifdef USE_SITECUSTOMIZE |
20ef40cf | 1768 | minus_f = TRUE; |
f5542d3a | 1769 | #endif |
20ef40cf GA |
1770 | s++; |
1771 | goto reswitch; | |
1772 | ||
6224f72b | 1773 | case 'I': /* -I handled both here and in moreswitches() */ |
a52eba0e | 1774 | forbid_setid('I', -1); |
bd61b366 | 1775 | if (!*++s && (s=argv[1]) != NULL) { |
6224f72b GS |
1776 | argc--,argv++; |
1777 | } | |
6224f72b | 1778 | if (s && *s) { |
0df16ed7 | 1779 | STRLEN len = strlen(s); |
aec46f14 | 1780 | const char * const p = savepvn(s, len); |
88fe16b2 | 1781 | incpush(p, TRUE, TRUE, FALSE, FALSE); |
396482e1 | 1782 | sv_catpvs(sv, "-I"); |
0df16ed7 | 1783 | sv_catpvn(sv, p, len); |
396482e1 | 1784 | sv_catpvs(sv, " "); |
6224f72b | 1785 | Safefree(p); |
0df16ed7 GS |
1786 | } |
1787 | else | |
a67e862a | 1788 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b GS |
1789 | break; |
1790 | case 'P': | |
a52eba0e | 1791 | forbid_setid('P', -1); |
3280af22 | 1792 | PL_preprocess = TRUE; |
6224f72b GS |
1793 | s++; |
1794 | goto reswitch; | |
1795 | case 'S': | |
a52eba0e | 1796 | forbid_setid('S', -1); |
6224f72b GS |
1797 | dosearch = TRUE; |
1798 | s++; | |
1799 | goto reswitch; | |
1800 | case 'V': | |
7edfd0ef NC |
1801 | { |
1802 | SV *opts_prog; | |
1803 | ||
29a861e7 | 1804 | Perl_av_create_and_push(aTHX_ &PL_preambleav, newSVpvs("use Config;")); |
7edfd0ef NC |
1805 | if (*++s != ':') { |
1806 | STRLEN opts; | |
1807 | ||
396482e1 | 1808 | opts_prog = newSVpvs("print Config::myconfig(),"); |
6224f72b | 1809 | #ifdef VMS |
396482e1 | 1810 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 1811 | #else |
396482e1 | 1812 | sv_catpvs(opts_prog,"\"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 1813 | #endif |
7edfd0ef | 1814 | opts = SvCUR(opts_prog); |
efcaa95b | 1815 | |
9cd7d3f2 | 1816 | Perl_sv_catpv(aTHX_ opts_prog,"\" Compile-time options:" |
6224f72b | 1817 | # ifdef DEBUGGING |
e2e4dbf1 | 1818 | " DEBUGGING" |
6224f72b | 1819 | # endif |
4f185743 NC |
1820 | # ifdef DEBUG_LEAKING_SCALARS |
1821 | " DEBUG_LEAKING_SCALARS" | |
1822 | # endif | |
85e1fcb9 | 1823 | # ifdef DEBUG_LEAKING_SCALARS_FORK_DUMP |
e2e4dbf1 | 1824 | " DEBUG_LEAKING_SCALARS_FORK_DUMP" |
85e1fcb9 SH |
1825 | # endif |
1826 | # ifdef FAKE_THREADS | |
e2e4dbf1 | 1827 | " FAKE_THREADS" |
85e1fcb9 | 1828 | # endif |
6224f72b | 1829 | # ifdef MULTIPLICITY |
e2e4dbf1 | 1830 | " MULTIPLICITY" |
6224f72b | 1831 | # endif |
85e1fcb9 | 1832 | # ifdef MYMALLOC |
e2e4dbf1 | 1833 | " MYMALLOC" |
85e1fcb9 | 1834 | # endif |
3bcf5ed8 SP |
1835 | # ifdef NO_MATHOMS |
1836 | " NO_MATHOMS" | |
1837 | # endif | |
5e661f6a NC |
1838 | # ifdef PERL_DEBUG_READONLY_OPS |
1839 | " PERL_DEBUG_READONLY_OPS" | |
1840 | # endif | |
85e1fcb9 | 1841 | # ifdef PERL_DONT_CREATE_GVSV |
e2e4dbf1 | 1842 | " PERL_DONT_CREATE_GVSV" |
85e1fcb9 SH |
1843 | # endif |
1844 | # ifdef PERL_GLOBAL_STRUCT | |
e2e4dbf1 | 1845 | " PERL_GLOBAL_STRUCT" |
85e1fcb9 SH |
1846 | # endif |
1847 | # ifdef PERL_IMPLICIT_CONTEXT | |
e2e4dbf1 | 1848 | " PERL_IMPLICIT_CONTEXT" |
85e1fcb9 SH |
1849 | # endif |
1850 | # ifdef PERL_IMPLICIT_SYS | |
e2e4dbf1 | 1851 | " PERL_IMPLICIT_SYS" |
85e1fcb9 | 1852 | # endif |
a724edfe NC |
1853 | # ifdef PERL_MAD |
1854 | " PERL_MAD" | |
1855 | # endif | |
85e1fcb9 | 1856 | # ifdef PERL_MALLOC_WRAP |
e2e4dbf1 | 1857 | " PERL_MALLOC_WRAP" |
85e1fcb9 | 1858 | # endif |
4724db38 NC |
1859 | # ifdef PERL_MEM_LOG |
1860 | " PERL_MEM_LOG" | |
1861 | # endif | |
1862 | # ifdef PERL_MEM_LOG_ENV | |
1863 | " PERL_MEM_LOG_ENV" | |
1864 | # endif | |
1865 | # ifdef PERL_MEM_LOG_ENV_FD | |
1866 | " PERL_MEM_LOG_ENV_FD" | |
1867 | # endif | |
1868 | # ifdef PERL_MEM_LOG_STDERR | |
1869 | " PERL_MEM_LOG_STDERR" | |
1870 | # endif | |
1871 | # ifdef PERL_MEM_LOG_TIMESTAMP | |
1872 | " PERL_MEM_LOG_TIMESTAMP" | |
1873 | # endif | |
85e1fcb9 | 1874 | # ifdef PERL_NEED_APPCTX |
e2e4dbf1 | 1875 | " PERL_NEED_APPCTX" |
85e1fcb9 SH |
1876 | # endif |
1877 | # ifdef PERL_NEED_TIMESBASE | |
e2e4dbf1 | 1878 | " PERL_NEED_TIMESBASE" |
85e1fcb9 SH |
1879 | # endif |
1880 | # ifdef PERL_OLD_COPY_ON_WRITE | |
e2e4dbf1 | 1881 | " PERL_OLD_COPY_ON_WRITE" |
85e1fcb9 | 1882 | # endif |
4724db38 NC |
1883 | # ifdef PERL_POISON |
1884 | " PERL_POISON" | |
1885 | # endif | |
9c0a4d5d DM |
1886 | # ifdef PERL_TRACK_MEMPOOL |
1887 | " PERL_TRACK_MEMPOOL" | |
1888 | # endif | |
417cd4a8 SP |
1889 | # ifdef PERL_USE_SAFE_PUTENV |
1890 | " PERL_USE_SAFE_PUTENV" | |
1891 | # endif | |
4724db38 | 1892 | # ifdef PERL_USES_PL_PIDSTATUS |
ca0c25f6 | 1893 | " PERL_USES_PL_PIDSTATUS" |
4724db38 | 1894 | # endif |
85e1fcb9 | 1895 | # ifdef PL_OP_SLAB_ALLOC |
e2e4dbf1 | 1896 | " PL_OP_SLAB_ALLOC" |
85e1fcb9 SH |
1897 | # endif |
1898 | # ifdef THREADS_HAVE_PIDS | |
e2e4dbf1 | 1899 | " THREADS_HAVE_PIDS" |
85e1fcb9 | 1900 | # endif |
85e1fcb9 | 1901 | # ifdef USE_64_BIT_ALL |
e2e4dbf1 | 1902 | " USE_64_BIT_ALL" |
ac5e8965 | 1903 | # endif |
10cc9d2a | 1904 | # ifdef USE_64_BIT_INT |
e2e4dbf1 | 1905 | " USE_64_BIT_INT" |
10cc9d2a | 1906 | # endif |
85e1fcb9 | 1907 | # ifdef USE_ITHREADS |
e2e4dbf1 | 1908 | " USE_ITHREADS" |
85e1fcb9 SH |
1909 | # endif |
1910 | # ifdef USE_LARGE_FILES | |
e2e4dbf1 | 1911 | " USE_LARGE_FILES" |
ac5e8965 JH |
1912 | # endif |
1913 | # ifdef USE_LONG_DOUBLE | |
e2e4dbf1 | 1914 | " USE_LONG_DOUBLE" |
ac5e8965 | 1915 | # endif |
85e1fcb9 | 1916 | # ifdef USE_PERLIO |
e2e4dbf1 | 1917 | " USE_PERLIO" |
53430762 | 1918 | # endif |
85e1fcb9 | 1919 | # ifdef USE_REENTRANT_API |
e2e4dbf1 | 1920 | " USE_REENTRANT_API" |
85e1fcb9 SH |
1921 | # endif |
1922 | # ifdef USE_SFIO | |
e2e4dbf1 | 1923 | " USE_SFIO" |
ac5e8965 | 1924 | # endif |
20ef40cf | 1925 | # ifdef USE_SITECUSTOMIZE |
e2e4dbf1 | 1926 | " USE_SITECUSTOMIZE" |
20ef40cf | 1927 | # endif |
85e1fcb9 | 1928 | # ifdef USE_SOCKS |
e2e4dbf1 | 1929 | " USE_SOCKS" |
b363f7ed | 1930 | # endif |
e2e4dbf1 | 1931 | ); |
efcaa95b | 1932 | |
7edfd0ef NC |
1933 | while (SvCUR(opts_prog) > opts+76) { |
1934 | /* find last space after "options: " and before col 76 | |
1935 | */ | |
efcaa95b | 1936 | |
7edfd0ef | 1937 | const char *space; |
c4420975 | 1938 | char * const pv = SvPV_nolen(opts_prog); |
7edfd0ef NC |
1939 | const char c = pv[opts+76]; |
1940 | pv[opts+76] = '\0'; | |
1941 | space = strrchr(pv+opts+26, ' '); | |
1942 | pv[opts+76] = c; | |
1943 | if (!space) break; /* "Can't happen" */ | |
efcaa95b | 1944 | |
7edfd0ef | 1945 | /* break the line before that space */ |
efcaa95b | 1946 | |
7edfd0ef | 1947 | opts = space - pv; |
89529cee | 1948 | Perl_sv_insert(aTHX_ opts_prog, opts, 0, |
6a245ed1 | 1949 | STR_WITH_LEN("\\n ")); |
7edfd0ef | 1950 | } |
efcaa95b | 1951 | |
396482e1 | 1952 | sv_catpvs(opts_prog,"\\n\","); |
b363f7ed | 1953 | |
6224f72b | 1954 | #if defined(LOCAL_PATCH_COUNT) |
7edfd0ef NC |
1955 | if (LOCAL_PATCH_COUNT > 0) { |
1956 | int i; | |
396482e1 | 1957 | sv_catpvs(opts_prog, |
7edfd0ef NC |
1958 | "\" Locally applied patches:\\n\","); |
1959 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { | |
1960 | if (PL_localpatches[i]) | |
1961 | Perl_sv_catpvf(aTHX_ opts_prog,"q%c\t%s\n%c,", | |
1962 | 0, PL_localpatches[i], 0); | |
1963 | } | |
6224f72b | 1964 | } |
6224f72b | 1965 | #endif |
7edfd0ef NC |
1966 | Perl_sv_catpvf(aTHX_ opts_prog, |
1967 | "\" Built under %s\\n\"",OSNAME); | |
6224f72b GS |
1968 | #ifdef __DATE__ |
1969 | # ifdef __TIME__ | |
7edfd0ef NC |
1970 | Perl_sv_catpvf(aTHX_ opts_prog, |
1971 | ",\" Compiled at %s %s\\n\"",__DATE__, | |
1972 | __TIME__); | |
6224f72b | 1973 | # else |
7edfd0ef NC |
1974 | Perl_sv_catpvf(aTHX_ opts_prog,",\" Compiled on %s\\n\"", |
1975 | __DATE__); | |
6224f72b GS |
1976 | # endif |
1977 | #endif | |
396482e1 | 1978 | sv_catpvs(opts_prog, "; $\"=\"\\n \"; " |
7edfd0ef NC |
1979 | "@env = map { \"$_=\\\"$ENV{$_}\\\"\" } " |
1980 | "sort grep {/^PERL/} keys %ENV; "); | |
69fcd688 | 1981 | #ifdef __CYGWIN__ |
396482e1 | 1982 | sv_catpvs(opts_prog, |
7edfd0ef | 1983 | "push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); |
69fcd688 | 1984 | #endif |
396482e1 | 1985 | sv_catpvs(opts_prog, |
7edfd0ef NC |
1986 | "print \" \\%ENV:\\n @env\\n\" if @env;" |
1987 | "print \" \\@INC:\\n @INC\\n\";"); | |
1988 | } | |
1989 | else { | |
1990 | ++s; | |
1991 | opts_prog = Perl_newSVpvf(aTHX_ | |
1992 | "Config::config_vars(qw%c%s%c)", | |
1993 | 0, s, 0); | |
1994 | s += strlen(s); | |
1995 | } | |
1996 | av_push(PL_preambleav, opts_prog); | |
1997 | /* don't look for script or read stdin */ | |
1998 | scriptname = BIT_BUCKET; | |
1999 | goto reswitch; | |
6224f72b | 2000 | } |
6224f72b | 2001 | case 'x': |
3280af22 | 2002 | PL_doextract = TRUE; |
6224f72b GS |
2003 | s++; |
2004 | if (*s) | |
f4c556ac | 2005 | cddir = s; |
6224f72b GS |
2006 | break; |
2007 | case 0: | |
2008 | break; | |
2009 | case '-': | |
2010 | if (!*++s || isSPACE(*s)) { | |
2011 | argc--,argv++; | |
2012 | goto switch_end; | |
2013 | } | |
2014 | /* catch use of gnu style long options */ | |
2015 | if (strEQ(s, "version")) { | |
dd374669 | 2016 | s = (char *)"v"; |
6224f72b GS |
2017 | goto reswitch; |
2018 | } | |
2019 | if (strEQ(s, "help")) { | |
dd374669 | 2020 | s = (char *)"h"; |
6224f72b GS |
2021 | goto reswitch; |
2022 | } | |
2023 | s--; | |
2024 | /* FALL THROUGH */ | |
2025 | default: | |
cea2e8a9 | 2026 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
2027 | } |
2028 | } | |
6224f72b | 2029 | switch_end: |
54310121 | 2030 | |
f675dbe5 CB |
2031 | if ( |
2032 | #ifndef SECURE_INTERNAL_GETENV | |
2033 | !PL_tainting && | |
2034 | #endif | |
cf756827 | 2035 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 2036 | { |
e1ec3a88 | 2037 | const char *popt = s; |
74288ac8 GS |
2038 | while (isSPACE(*s)) |
2039 | s++; | |
317ea90d | 2040 | if (*s == '-' && *(s+1) == 'T') { |
22f7c9c9 | 2041 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 2042 | PL_tainting = TRUE; |
317ea90d MS |
2043 | PL_taint_warn = FALSE; |
2044 | } | |
74288ac8 | 2045 | else { |
bd61b366 | 2046 | char *popt_copy = NULL; |
74288ac8 | 2047 | while (s && *s) { |
4ea8f8fb | 2048 | char *d; |
74288ac8 GS |
2049 | while (isSPACE(*s)) |
2050 | s++; | |
2051 | if (*s == '-') { | |
2052 | s++; | |
2053 | if (isSPACE(*s)) | |
2054 | continue; | |
2055 | } | |
4ea8f8fb | 2056 | d = s; |
74288ac8 GS |
2057 | if (!*s) |
2058 | break; | |
e4af53b0 | 2059 | if (!strchr("CDIMUdmtwA", *s)) |
cea2e8a9 | 2060 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
2061 | while (++s && *s) { |
2062 | if (isSPACE(*s)) { | |
cf756827 GS |
2063 | if (!popt_copy) { |
2064 | popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0))); | |
2065 | s = popt_copy + (s - popt); | |
2066 | d = popt_copy + (d - popt); | |
2067 | } | |
4ea8f8fb MS |
2068 | *s++ = '\0'; |
2069 | break; | |
2070 | } | |
2071 | } | |
1c4db469 | 2072 | if (*d == 't') { |
317ea90d MS |
2073 | if( !PL_tainting ) { |
2074 | PL_taint_warn = TRUE; | |
2075 | PL_tainting = TRUE; | |
2076 | } | |
1c4db469 | 2077 | } else { |
97bd5664 | 2078 | moreswitches(d); |
1c4db469 | 2079 | } |
6224f72b | 2080 | } |
6224f72b GS |
2081 | } |
2082 | } | |
a0d0e21e | 2083 | |
20ef40cf GA |
2084 | #ifdef USE_SITECUSTOMIZE |
2085 | if (!minus_f) { | |
29a861e7 NC |
2086 | (void)Perl_av_create_and_unshift_one(aTHX_ &PL_preambleav, |
2087 | Perl_newSVpvf(aTHX_ "BEGIN { do '%s/sitecustomize.pl' }", SITELIB_EXP)); | |
20ef40cf GA |
2088 | } |
2089 | #endif | |
2090 | ||
6224f72b GS |
2091 | if (!scriptname) |
2092 | scriptname = argv[0]; | |
3280af22 | 2093 | if (PL_e_script) { |
6224f72b GS |
2094 | argc++,argv--; |
2095 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
2096 | } | |
bd61b366 | 2097 | else if (scriptname == NULL) { |
6224f72b GS |
2098 | #ifdef MSDOS |
2099 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
97bd5664 | 2100 | moreswitches("h"); |
6224f72b GS |
2101 | #endif |
2102 | scriptname = "-"; | |
2103 | } | |
2104 | ||
b7975bdd NC |
2105 | /* Set $^X early so that it can be used for relocatable paths in @INC */ |
2106 | assert (!PL_tainted); | |
2107 | TAINT; | |
2108 | S_set_caret_X(aTHX); | |
2109 | TAINT_NOT; | |
6224f72b GS |
2110 | init_perllib(); |
2111 | ||
a52eba0e NC |
2112 | { |
2113 | int suidscript; | |
2114 | const int fdscript | |
2115 | = open_script(scriptname, dosearch, sv, &suidscript); | |
6224f72b | 2116 | |
a52eba0e | 2117 | validate_suid(validarg, scriptname, fdscript, suidscript); |
6224f72b | 2118 | |
64ca3a65 | 2119 | #ifndef PERL_MICRO |
a52eba0e NC |
2120 | # if defined(SIGCHLD) || defined(SIGCLD) |
2121 | { | |
2122 | # ifndef SIGCHLD | |
2123 | # define SIGCHLD SIGCLD | |
2124 | # endif | |
2125 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
2126 | if (sigstate == (Sighandler_t) SIG_IGN) { | |
2127 | if (ckWARN(WARN_SIGNAL)) | |
2128 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), | |
2129 | "Can't ignore signal CHLD, forcing to default"); | |
2130 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
2131 | } | |
0b5b802d | 2132 | } |
a52eba0e | 2133 | # endif |
64ca3a65 | 2134 | #endif |
0b5b802d | 2135 | |
a52eba0e | 2136 | if (PL_doextract |
bf4acbe4 | 2137 | #ifdef MACOS_TRADITIONAL |
a52eba0e | 2138 | || gMacPerl_AlwaysExtract |
bf4acbe4 | 2139 | #endif |
a52eba0e | 2140 | ) { |
faef540c NC |
2141 | |
2142 | /* This will croak if suidscript is >= 0, as -x cannot be used with | |
2143 | setuid scripts. */ | |
2144 | forbid_setid('x', suidscript); | |
2145 | /* Hence you can't get here if suidscript >= 0 */ | |
2146 | ||
2147 | find_beginning(); | |
a52eba0e NC |
2148 | if (cddir && PerlDir_chdir( (char *)cddir ) < 0) |
2149 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
2150 | } | |
f4c556ac | 2151 | } |
6224f72b | 2152 | |
b9f83d2f | 2153 | PL_main_cv = PL_compcv = (CV*)newSV_type(SVt_PVCV); |
3280af22 NIS |
2154 | CvUNIQUE_on(PL_compcv); |
2155 | ||
dd2155a4 | 2156 | CvPADLIST(PL_compcv) = pad_new(0); |
6224f72b | 2157 | |
0c4f7ff0 | 2158 | boot_core_PerlIO(); |
6224f72b | 2159 | boot_core_UNIVERSAL(); |
09bef843 | 2160 | boot_core_xsutils(); |
e1a479c5 | 2161 | boot_core_mro(); |
6224f72b GS |
2162 | |
2163 | if (xsinit) | |
acfe0abc | 2164 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 2165 | #ifndef PERL_MICRO |
d0d72822 | 2166 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) || defined(SYMBIAN) |
c5be433b | 2167 | init_os_extras(); |
6224f72b | 2168 | #endif |
64ca3a65 | 2169 | #endif |
6224f72b | 2170 | |
29209bc5 | 2171 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
2172 | # ifdef HAS_SOCKS5_INIT |
2173 | socks5_init(argv[0]); | |
2174 | # else | |
29209bc5 | 2175 | SOCKSinit(argv[0]); |
1b9c9cf5 | 2176 | # endif |
ac27b0f5 | 2177 | #endif |
29209bc5 | 2178 | |
6224f72b GS |
2179 | init_predump_symbols(); |
2180 | /* init_postdump_symbols not currently designed to be called */ | |
2181 | /* more than once (ENV isn't cleared first, for example) */ | |
2182 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 2183 | if (!PL_do_undump) |
6224f72b GS |
2184 | init_postdump_symbols(argc,argv,env); |
2185 | ||
27da23d5 JH |
2186 | /* PL_unicode is turned on by -C, or by $ENV{PERL_UNICODE}, |
2187 | * or explicitly in some platforms. | |
085a54d9 | 2188 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 2189 | * look like the user wants to use UTF-8. */ |
a0fd4948 | 2190 | #if defined(__SYMBIAN32__) |
27da23d5 JH |
2191 | PL_unicode = PERL_UNICODE_STD_FLAG; /* See PERL_SYMBIAN_CONSOLE_UTF8. */ |
2192 | #endif | |
06e66572 JH |
2193 | if (PL_unicode) { |
2194 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 2195 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
2196 | IO* io; |
2197 | PerlIO* fp; | |
2198 | SV* sv; | |
2199 | ||
a05d7ebb | 2200 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 2201 | * and the default open disciplines. */ |
a05d7ebb JH |
2202 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
2203 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
2204 | (fp = IoIFP(io))) | |
2205 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2206 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
2207 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
2208 | (fp = IoOFP(io))) | |
2209 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2210 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
2211 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
2212 | (fp = IoOFP(io))) | |
2213 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
2214 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
fafc274c NC |
2215 | (sv = GvSV(gv_fetchpvs("\017PEN", GV_ADD|GV_NOTQUAL, |
2216 | SVt_PV)))) { | |
a05d7ebb JH |
2217 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; |
2218 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
2219 | if (in) { | |
2220 | if (out) | |
2221 | sv_setpvn(sv, ":utf8\0:utf8", 11); | |
2222 | else | |
2223 | sv_setpvn(sv, ":utf8\0", 6); | |
2224 | } | |
2225 | else if (out) | |
2226 | sv_setpvn(sv, "\0:utf8", 6); | |
2227 | SvSETMAGIC(sv); | |
2228 | } | |
b310b053 JH |
2229 | } |
2230 | } | |
2231 | ||
4ffa73a3 JH |
2232 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
2233 | if (strEQ(s, "unsafe")) | |
2234 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
2235 | else if (strEQ(s, "safe")) | |
2236 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
2237 | else | |
2238 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
2239 | } | |
2240 | ||
81d86705 NC |
2241 | #ifdef PERL_MAD |
2242 | if ((s = PerlEnv_getenv("PERL_XMLDUMP"))) { | |
2243 | PL_madskills = 1; | |
2244 | PL_minus_c = 1; | |
2245 | if (!s || !s[0]) | |
2246 | PL_xmlfp = PerlIO_stdout(); | |
2247 | else { | |
2248 | PL_xmlfp = PerlIO_open(s, "w"); | |
2249 | if (!PL_xmlfp) | |
2250 | Perl_croak(aTHX_ "Can't open %s", s); | |
2251 | } | |
2252 | my_setenv("PERL_XMLDUMP", Nullch); /* hide from subprocs */ | |
2253 | } | |
2254 | if ((s = PerlEnv_getenv("PERL_MADSKILLS"))) { | |
2255 | PL_madskills = atoi(s); | |
2256 | my_setenv("PERL_MADSKILLS", Nullch); /* hide from subprocs */ | |
2257 | } | |
2258 | #endif | |
2259 | ||
6224f72b GS |
2260 | init_lexer(); |
2261 | ||
2262 | /* now parse the script */ | |
2263 | ||
93189314 | 2264 | SETERRNO(0,SS_NORMAL); |
3280af22 | 2265 | PL_error_count = 0; |
bf4acbe4 GS |
2266 | #ifdef MACOS_TRADITIONAL |
2267 | if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) { | |
2268 | if (PL_minus_c) | |
2269 | Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); | |
2270 | else { | |
2271 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", | |
2272 | MacPerl_MPWFileName(PL_origfilename)); | |
2273 | } | |
2274 | } | |
2275 | #else | |
3280af22 NIS |
2276 | if (yyparse() || PL_error_count) { |
2277 | if (PL_minus_c) | |
cea2e8a9 | 2278 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 2279 | else { |
cea2e8a9 | 2280 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 2281 | PL_origfilename); |
6224f72b GS |
2282 | } |
2283 | } | |
bf4acbe4 | 2284 | #endif |
57843af0 | 2285 | CopLINE_set(PL_curcop, 0); |
3280af22 NIS |
2286 | PL_curstash = PL_defstash; |
2287 | PL_preprocess = FALSE; | |
2288 | if (PL_e_script) { | |
2289 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 2290 | PL_e_script = NULL; |
6224f72b GS |
2291 | } |
2292 | ||
3280af22 | 2293 | if (PL_do_undump) |
6224f72b GS |
2294 | my_unexec(); |
2295 | ||
57843af0 GS |
2296 | if (isWARN_ONCE) { |
2297 | SAVECOPFILE(PL_curcop); | |
2298 | SAVECOPLINE(PL_curcop); | |
3280af22 | 2299 | gv_check(PL_defstash); |
57843af0 | 2300 | } |
6224f72b GS |
2301 | |
2302 | LEAVE; | |
2303 | FREETMPS; | |
2304 | ||
2305 | #ifdef MYMALLOC | |
2306 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
2307 | dump_mstats("after compilation:"); | |
2308 | #endif | |
2309 | ||
2310 | ENTER; | |
3280af22 | 2311 | PL_restartop = 0; |
312caa8e | 2312 | return NULL; |
6224f72b GS |
2313 | } |
2314 | ||
954c1994 GS |
2315 | /* |
2316 | =for apidoc perl_run | |
2317 | ||
2318 | Tells a Perl interpreter to run. See L<perlembed>. | |
2319 | ||
2320 | =cut | |
2321 | */ | |
2322 | ||
6224f72b | 2323 | int |
0cb96387 | 2324 | perl_run(pTHXx) |
6224f72b | 2325 | { |
97aff369 | 2326 | dVAR; |
6224f72b | 2327 | I32 oldscope; |
14dd3ad8 | 2328 | int ret = 0; |
db36c5a1 | 2329 | dJMPENV; |
6224f72b | 2330 | |
ed6c66dd | 2331 | PERL_UNUSED_ARG(my_perl); |
9d4ba2ae | 2332 | |
3280af22 | 2333 | oldscope = PL_scopestack_ix; |
96e176bf CL |
2334 | #ifdef VMS |
2335 | VMSISH_HUSHED = 0; | |
2336 | #endif | |
6224f72b | 2337 | |
14dd3ad8 | 2338 | JMPENV_PUSH(ret); |
6224f72b GS |
2339 | switch (ret) { |
2340 | case 1: | |
2341 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 2342 | goto redo_body; |
14dd3ad8 | 2343 | case 0: /* normal completion */ |
14dd3ad8 GS |
2344 | redo_body: |
2345 | run_body(oldscope); | |
14dd3ad8 GS |
2346 | /* FALL THROUGH */ |
2347 | case 2: /* my_exit() */ | |
3280af22 | 2348 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
2349 | LEAVE; |
2350 | FREETMPS; | |
3280af22 | 2351 | PL_curstash = PL_defstash; |
3a1ee7e8 | 2352 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
2353 | PL_endav && !PL_minus_c) |
2354 | call_list(oldscope, PL_endav); | |
6224f72b GS |
2355 | #ifdef MYMALLOC |
2356 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
2357 | dump_mstats("after execution: "); | |
2358 | #endif | |
37038d91 | 2359 | ret = STATUS_EXIT; |
14dd3ad8 | 2360 | break; |
6224f72b | 2361 | case 3: |
312caa8e CS |
2362 | if (PL_restartop) { |
2363 | POPSTACK_TO(PL_mainstack); | |
2364 | goto redo_body; | |
6224f72b | 2365 | } |
bf49b057 | 2366 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 2367 | FREETMPS; |
14dd3ad8 GS |
2368 | ret = 1; |
2369 | break; | |
6224f72b GS |
2370 | } |
2371 | ||
14dd3ad8 GS |
2372 | JMPENV_POP; |
2373 | return ret; | |
312caa8e CS |
2374 | } |
2375 | ||
dd374669 | 2376 | STATIC void |
14dd3ad8 GS |
2377 | S_run_body(pTHX_ I32 oldscope) |
2378 | { | |
97aff369 | 2379 | dVAR; |
6224f72b | 2380 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 2381 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 2382 | |
3280af22 | 2383 | if (!PL_restartop) { |
81d86705 NC |
2384 | #ifdef PERL_MAD |
2385 | if (PL_xmlfp) { | |
2386 | xmldump_all(); | |
2387 | exit(0); /* less likely to core dump than my_exit(0) */ | |
2388 | } | |
2389 | #endif | |
6224f72b | 2390 | DEBUG_x(dump_all()); |
cf2782cd | 2391 | #ifdef DEBUGGING |
ecae49c0 NC |
2392 | if (!DEBUG_q_TEST) |
2393 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
cf2782cd | 2394 | #endif |
b900a521 JH |
2395 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
2396 | PTR2UV(thr))); | |
6224f72b | 2397 | |
3280af22 | 2398 | if (PL_minus_c) { |
bf4acbe4 | 2399 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
2400 | PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", |
2401 | (gMacPerl_ErrorFormat ? "# " : ""), | |
2402 | MacPerl_MPWFileName(PL_origfilename)); | |
bf4acbe4 | 2403 | #else |
bf49b057 | 2404 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
bf4acbe4 | 2405 | #endif |
6224f72b GS |
2406 | my_exit(0); |
2407 | } | |
3280af22 | 2408 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 2409 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
2410 | if (PL_initav) |
2411 | call_list(oldscope, PL_initav); | |
f1fac472 NC |
2412 | #ifdef PERL_DEBUG_READONLY_OPS |
2413 | Perl_pending_Slabs_to_ro(aTHX); | |
2414 | #endif | |
6224f72b GS |
2415 | } |
2416 | ||
2417 | /* do it */ | |
2418 | ||
3280af22 | 2419 | if (PL_restartop) { |
533c011a | 2420 | PL_op = PL_restartop; |
3280af22 | 2421 | PL_restartop = 0; |
cea2e8a9 | 2422 | CALLRUNOPS(aTHX); |
6224f72b | 2423 | } |
3280af22 NIS |
2424 | else if (PL_main_start) { |
2425 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 2426 | PL_op = PL_main_start; |
cea2e8a9 | 2427 | CALLRUNOPS(aTHX); |
6224f72b | 2428 | } |
f6b3007c JH |
2429 | my_exit(0); |
2430 | /* NOTREACHED */ | |
6224f72b GS |
2431 | } |
2432 | ||
954c1994 | 2433 | /* |
ccfc67b7 JH |
2434 | =head1 SV Manipulation Functions |
2435 | ||
954c1994 GS |
2436 | =for apidoc p||get_sv |
2437 | ||
2438 | Returns the SV of the specified Perl scalar. If C<create> is set and the | |
2439 | Perl variable does not exist then it will be created. If C<create> is not | |
2440 | set and the variable does not exist then NULL is returned. | |
2441 | ||
2442 | =cut | |
2443 | */ | |
2444 | ||
6224f72b | 2445 | SV* |
864dbfa3 | 2446 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
2447 | { |
2448 | GV *gv; | |
6224f72b GS |
2449 | gv = gv_fetchpv(name, create, SVt_PV); |
2450 | if (gv) | |
2451 | return GvSV(gv); | |
a0714e2c | 2452 | return NULL; |
6224f72b GS |
2453 | } |
2454 | ||
954c1994 | 2455 | /* |
ccfc67b7 JH |
2456 | =head1 Array Manipulation Functions |
2457 | ||
954c1994 GS |
2458 | =for apidoc p||get_av |
2459 | ||
2460 | Returns the AV of the specified Perl array. If C<create> is set and the | |
2461 | Perl variable does not exist then it will be created. If C<create> is not | |
2462 | set and the variable does not exist then NULL is returned. | |
2463 | ||
2464 | =cut | |
2465 | */ | |
2466 | ||
6224f72b | 2467 | AV* |
864dbfa3 | 2468 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b | 2469 | { |
c4420975 | 2470 | GV* const gv = gv_fetchpv(name, create, SVt_PVAV); |
6224f72b GS |
2471 | if (create) |
2472 | return GvAVn(gv); | |
2473 | if (gv) | |
2474 | return GvAV(gv); | |
7d49f689 | 2475 | return NULL; |
6224f72b GS |
2476 | } |
2477 | ||
954c1994 | 2478 | /* |
ccfc67b7 JH |
2479 | =head1 Hash Manipulation Functions |
2480 | ||
954c1994 GS |
2481 | =for apidoc p||get_hv |
2482 | ||
2483 | Returns the HV of the specified Perl hash. If C<create> is set and the | |
2484 | Perl variable does not exist then it will be created. If C<create> is not | |
2485 | set and the variable does not exist then NULL is returned. | |
2486 | ||
2487 | =cut | |
2488 | */ | |
2489 | ||
6224f72b | 2490 | HV* |
864dbfa3 | 2491 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 2492 | { |
890ce7af | 2493 | GV* const gv = gv_fetchpv(name, create, SVt_PVHV); |
a0d0e21e LW |
2494 | if (create) |
2495 | return GvHVn(gv); | |
2496 | if (gv) | |
2497 | return GvHV(gv); | |
5c284bb0 | 2498 | return NULL; |
a0d0e21e LW |
2499 | } |
2500 | ||
954c1994 | 2501 | /* |
ccfc67b7 JH |
2502 | =head1 CV Manipulation Functions |
2503 | ||
780a5241 NC |
2504 | =for apidoc p||get_cvn_flags |
2505 | ||
2506 | Returns the CV of the specified Perl subroutine. C<flags> are passed to | |
2507 | C<gv_fetchpvn_flags>. If C<GV_ADD> is set and the Perl subroutine does not | |
2508 | exist then it will be declared (which has the same effect as saying | |
2509 | C<sub name;>). If C<GV_ADD> is not set and the subroutine does not exist | |
2510 | then NULL is returned. | |
2511 | ||
954c1994 GS |
2512 | =for apidoc p||get_cv |
2513 | ||
780a5241 | 2514 | Uses C<strlen> to get the length of C<name>, then calls C<get_cvn_flags>. |
954c1994 GS |
2515 | |
2516 | =cut | |
2517 | */ | |
2518 | ||
a0d0e21e | 2519 | CV* |
780a5241 | 2520 | Perl_get_cvn_flags(pTHX_ const char *name, STRLEN len, I32 flags) |
a0d0e21e | 2521 | { |
780a5241 | 2522 | GV* const gv = gv_fetchpvn_flags(name, len, flags, SVt_PVCV); |
f6ec51f7 GS |
2523 | /* XXX this is probably not what they think they're getting. |
2524 | * It has the same effect as "sub name;", i.e. just a forward | |
2525 | * declaration! */ | |
780a5241 NC |
2526 | if ((flags & ~GV_NOADD_MASK) && !GvCVu(gv)) { |
2527 | SV *const sv = newSVpvn(name,len); | |
2528 | SvFLAGS(sv) |= flags & SVf_UTF8; | |
774d564b | 2529 | return newSUB(start_subparse(FALSE, 0), |
780a5241 | 2530 | newSVOP(OP_CONST, 0, sv), |
5f66b61c | 2531 | NULL, NULL); |
780a5241 | 2532 | } |
a0d0e21e | 2533 | if (gv) |
8ebc5c01 | 2534 | return GvCVu(gv); |
601f1833 | 2535 | return NULL; |
a0d0e21e LW |
2536 | } |
2537 | ||
780a5241 NC |
2538 | CV* |
2539 | Perl_get_cv(pTHX_ const char *name, I32 flags) | |
2540 | { | |
2541 | return get_cvn_flags(name, strlen(name), flags); | |
2542 | } | |
2543 | ||
79072805 LW |
2544 | /* Be sure to refetch the stack pointer after calling these routines. */ |
2545 | ||
954c1994 | 2546 | /* |
ccfc67b7 JH |
2547 | |
2548 | =head1 Callback Functions | |
2549 | ||
954c1994 GS |
2550 | =for apidoc p||call_argv |
2551 | ||
2552 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2553 | ||
2554 | =cut | |
2555 | */ | |
2556 | ||
a0d0e21e | 2557 | I32 |
8f42b153 | 2558 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 2559 | |
8ac85365 NIS |
2560 | /* See G_* flags in cop.h */ |
2561 | /* null terminated arg list */ | |
8990e307 | 2562 | { |
97aff369 | 2563 | dVAR; |
a0d0e21e | 2564 | dSP; |
8990e307 | 2565 | |
924508f0 | 2566 | PUSHMARK(SP); |
a0d0e21e | 2567 | if (argv) { |
8990e307 | 2568 | while (*argv) { |
a0d0e21e | 2569 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
2570 | argv++; |
2571 | } | |
a0d0e21e | 2572 | PUTBACK; |
8990e307 | 2573 | } |
864dbfa3 | 2574 | return call_pv(sub_name, flags); |
8990e307 LW |
2575 | } |
2576 | ||
954c1994 GS |
2577 | /* |
2578 | =for apidoc p||call_pv | |
2579 | ||
2580 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
2581 | ||
2582 | =cut | |
2583 | */ | |
2584 | ||
a0d0e21e | 2585 | I32 |
864dbfa3 | 2586 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
2587 | /* name of the subroutine */ |
2588 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2589 | { |
864dbfa3 | 2590 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
2591 | } |
2592 | ||
954c1994 GS |
2593 | /* |
2594 | =for apidoc p||call_method | |
2595 | ||
2596 | Performs a callback to the specified Perl method. The blessed object must | |
2597 | be on the stack. See L<perlcall>. | |
2598 | ||
2599 | =cut | |
2600 | */ | |
2601 | ||
a0d0e21e | 2602 | I32 |
864dbfa3 | 2603 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
2604 | /* name of the subroutine */ |
2605 | /* See G_* flags in cop.h */ | |
a0d0e21e | 2606 | { |
968b3946 | 2607 | return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); |
a0d0e21e LW |
2608 | } |
2609 | ||
2610 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
2611 | /* |
2612 | =for apidoc p||call_sv | |
2613 | ||
2614 | Performs a callback to the Perl sub whose name is in the SV. See | |
2615 | L<perlcall>. | |
2616 | ||
2617 | =cut | |
2618 | */ | |
2619 | ||
a0d0e21e | 2620 | I32 |
864dbfa3 | 2621 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 | 2622 | /* See G_* flags in cop.h */ |
a0d0e21e | 2623 | { |
27da23d5 | 2624 | dVAR; dSP; |
a0d0e21e | 2625 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 2626 | UNOP method_op; |
aa689395 | 2627 | I32 oldmark; |
8ea43dc8 | 2628 | VOL I32 retval = 0; |
a0d0e21e | 2629 | I32 oldscope; |
54310121 | 2630 | bool oldcatch = CATCH_GET; |
6224f72b | 2631 | int ret; |
c4420975 | 2632 | OP* const oldop = PL_op; |
db36c5a1 | 2633 | dJMPENV; |
1e422769 | 2634 | |
a0d0e21e LW |
2635 | if (flags & G_DISCARD) { |
2636 | ENTER; | |
2637 | SAVETMPS; | |
2638 | } | |
2639 | ||
aa689395 | 2640 | Zero(&myop, 1, LOGOP); |
5f66b61c | 2641 | myop.op_next = NULL; |
f51d4af5 | 2642 | if (!(flags & G_NOARGS)) |
aa689395 | 2643 | myop.op_flags |= OPf_STACKED; |
54310121 | 2644 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2645 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2646 | OPf_WANT_SCALAR); | |
462e5cf6 | 2647 | SAVEOP(); |
533c011a | 2648 | PL_op = (OP*)&myop; |
aa689395 | 2649 | |
3280af22 NIS |
2650 | EXTEND(PL_stack_sp, 1); |
2651 | *++PL_stack_sp = sv; | |
aa689395 | 2652 | oldmark = TOPMARK; |
3280af22 | 2653 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2654 | |
3280af22 | 2655 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2656 | /* Handle first BEGIN of -d. */ |
3280af22 | 2657 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2658 | /* Try harder, since this may have been a sighandler, thus |
2659 | * curstash may be meaningless. */ | |
3280af22 | 2660 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 2661 | && !(flags & G_NODEBUG)) |
533c011a | 2662 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2663 | |
968b3946 GS |
2664 | if (flags & G_METHOD) { |
2665 | Zero(&method_op, 1, UNOP); | |
2666 | method_op.op_next = PL_op; | |
2667 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
2668 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; | |
f39d0b86 | 2669 | PL_op = (OP*)&method_op; |
968b3946 GS |
2670 | } |
2671 | ||
312caa8e | 2672 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2673 | CATCH_SET(TRUE); |
d6f07c05 | 2674 | CALL_BODY_SUB((OP*)&myop); |
312caa8e | 2675 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2676 | CATCH_SET(oldcatch); |
312caa8e CS |
2677 | } |
2678 | else { | |
d78bda3d | 2679 | myop.op_other = (OP*)&myop; |
3280af22 | 2680 | PL_markstack_ptr--; |
edb2152a | 2681 | create_eval_scope(flags|G_FAKINGEVAL); |
3280af22 | 2682 | PL_markstack_ptr++; |
a0d0e21e | 2683 | |
14dd3ad8 | 2684 | JMPENV_PUSH(ret); |
edb2152a | 2685 | |
6224f72b GS |
2686 | switch (ret) { |
2687 | case 0: | |
14dd3ad8 | 2688 | redo_body: |
d6f07c05 | 2689 | CALL_BODY_SUB((OP*)&myop); |
312caa8e CS |
2690 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2691 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2692 | sv_setpvn(ERRSV,"",0); |
a0d0e21e | 2693 | break; |
6224f72b | 2694 | case 1: |
f86702cc | 2695 | STATUS_ALL_FAILURE; |
a0d0e21e | 2696 | /* FALL THROUGH */ |
6224f72b | 2697 | case 2: |
a0d0e21e | 2698 | /* my_exit() was called */ |
3280af22 | 2699 | PL_curstash = PL_defstash; |
a0d0e21e | 2700 | FREETMPS; |
14dd3ad8 | 2701 | JMPENV_POP; |
cc3604b1 | 2702 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2703 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2704 | my_exit_jump(); |
a0d0e21e | 2705 | /* NOTREACHED */ |
6224f72b | 2706 | case 3: |
3280af22 | 2707 | if (PL_restartop) { |
533c011a | 2708 | PL_op = PL_restartop; |
3280af22 | 2709 | PL_restartop = 0; |
312caa8e | 2710 | goto redo_body; |
a0d0e21e | 2711 | } |
3280af22 | 2712 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2713 | if (flags & G_ARRAY) |
2714 | retval = 0; | |
2715 | else { | |
2716 | retval = 1; | |
3280af22 | 2717 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2718 | } |
312caa8e | 2719 | break; |
a0d0e21e | 2720 | } |
a0d0e21e | 2721 | |
edb2152a NC |
2722 | if (PL_scopestack_ix > oldscope) |
2723 | delete_eval_scope(); | |
14dd3ad8 | 2724 | JMPENV_POP; |
a0d0e21e | 2725 | } |
1e422769 | 2726 | |
a0d0e21e | 2727 | if (flags & G_DISCARD) { |
3280af22 | 2728 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2729 | retval = 0; |
2730 | FREETMPS; | |
2731 | LEAVE; | |
2732 | } | |
533c011a | 2733 | PL_op = oldop; |
a0d0e21e LW |
2734 | return retval; |
2735 | } | |
2736 | ||
6e72f9df | 2737 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2738 | |
954c1994 GS |
2739 | /* |
2740 | =for apidoc p||eval_sv | |
2741 | ||
2742 | Tells Perl to C<eval> the string in the SV. | |
2743 | ||
2744 | =cut | |
2745 | */ | |
2746 | ||
a0d0e21e | 2747 | I32 |
864dbfa3 | 2748 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2749 | |
8ac85365 | 2750 | /* See G_* flags in cop.h */ |
a0d0e21e | 2751 | { |
97aff369 | 2752 | dVAR; |
924508f0 | 2753 | dSP; |
a0d0e21e | 2754 | UNOP myop; /* fake syntax tree node */ |
8ea43dc8 SP |
2755 | VOL I32 oldmark = SP - PL_stack_base; |
2756 | VOL I32 retval = 0; | |
6224f72b | 2757 | int ret; |
c4420975 | 2758 | OP* const oldop = PL_op; |
db36c5a1 | 2759 | dJMPENV; |
84902520 | 2760 | |
4633a7c4 LW |
2761 | if (flags & G_DISCARD) { |
2762 | ENTER; | |
2763 | SAVETMPS; | |
2764 | } | |
2765 | ||
462e5cf6 | 2766 | SAVEOP(); |
533c011a NIS |
2767 | PL_op = (OP*)&myop; |
2768 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2769 | EXTEND(PL_stack_sp, 1); |
2770 | *++PL_stack_sp = sv; | |
79072805 | 2771 | |
4633a7c4 LW |
2772 | if (!(flags & G_NOARGS)) |
2773 | myop.op_flags = OPf_STACKED; | |
5f66b61c | 2774 | myop.op_next = NULL; |
6e72f9df | 2775 | myop.op_type = OP_ENTEREVAL; |
54310121 | 2776 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2777 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2778 | OPf_WANT_SCALAR); | |
6e72f9df | 2779 | if (flags & G_KEEPERR) |
2780 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2781 | |
dedbcade DM |
2782 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2783 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2784 | TAINT_PROPER("eval_sv()"); | |
2785 | ||
14dd3ad8 | 2786 | JMPENV_PUSH(ret); |
6224f72b GS |
2787 | switch (ret) { |
2788 | case 0: | |
14dd3ad8 | 2789 | redo_body: |
d6f07c05 | 2790 | CALL_BODY_EVAL((OP*)&myop); |
312caa8e CS |
2791 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2792 | if (!(flags & G_KEEPERR)) | |
c69006e4 | 2793 | sv_setpvn(ERRSV,"",0); |
4633a7c4 | 2794 | break; |
6224f72b | 2795 | case 1: |
f86702cc | 2796 | STATUS_ALL_FAILURE; |
4633a7c4 | 2797 | /* FALL THROUGH */ |
6224f72b | 2798 | case 2: |
4633a7c4 | 2799 | /* my_exit() was called */ |
3280af22 | 2800 | PL_curstash = PL_defstash; |
4633a7c4 | 2801 | FREETMPS; |
14dd3ad8 | 2802 | JMPENV_POP; |
cc3604b1 | 2803 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2804 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2805 | my_exit_jump(); |
4633a7c4 | 2806 | /* NOTREACHED */ |
6224f72b | 2807 | case 3: |
3280af22 | 2808 | if (PL_restartop) { |
533c011a | 2809 | PL_op = PL_restartop; |
3280af22 | 2810 | PL_restartop = 0; |
312caa8e | 2811 | goto redo_body; |
4633a7c4 | 2812 | } |
3280af22 | 2813 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2814 | if (flags & G_ARRAY) |
2815 | retval = 0; | |
2816 | else { | |
2817 | retval = 1; | |
3280af22 | 2818 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2819 | } |
312caa8e | 2820 | break; |
4633a7c4 LW |
2821 | } |
2822 | ||
14dd3ad8 | 2823 | JMPENV_POP; |
4633a7c4 | 2824 | if (flags & G_DISCARD) { |
3280af22 | 2825 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2826 | retval = 0; |
2827 | FREETMPS; | |
2828 | LEAVE; | |
2829 | } | |
533c011a | 2830 | PL_op = oldop; |
4633a7c4 LW |
2831 | return retval; |
2832 | } | |
2833 | ||
954c1994 GS |
2834 | /* |
2835 | =for apidoc p||eval_pv | |
2836 | ||
2837 | Tells Perl to C<eval> the given string and return an SV* result. | |
2838 | ||
2839 | =cut | |
2840 | */ | |
2841 | ||
137443ea | 2842 | SV* |
864dbfa3 | 2843 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2844 | { |
97aff369 | 2845 | dVAR; |
137443ea | 2846 | dSP; |
2847 | SV* sv = newSVpv(p, 0); | |
2848 | ||
864dbfa3 | 2849 | eval_sv(sv, G_SCALAR); |
137443ea | 2850 | SvREFCNT_dec(sv); |
2851 | ||
2852 | SPAGAIN; | |
2853 | sv = POPs; | |
2854 | PUTBACK; | |
2855 | ||
2d8e6c8d | 2856 | if (croak_on_error && SvTRUE(ERRSV)) { |
0510663f | 2857 | Perl_croak(aTHX_ SvPVx_nolen_const(ERRSV)); |
2d8e6c8d | 2858 | } |
137443ea | 2859 | |
2860 | return sv; | |
2861 | } | |
2862 | ||
4633a7c4 LW |
2863 | /* Require a module. */ |
2864 | ||
954c1994 | 2865 | /* |
ccfc67b7 JH |
2866 | =head1 Embedding Functions |
2867 | ||
954c1994 GS |
2868 | =for apidoc p||require_pv |
2869 | ||
7d3fb230 BS |
2870 | Tells Perl to C<require> the file named by the string argument. It is |
2871 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2872 | implemented that way; consider using load_module instead. |
954c1994 | 2873 | |
7d3fb230 | 2874 | =cut */ |
954c1994 | 2875 | |
4633a7c4 | 2876 | void |
864dbfa3 | 2877 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2878 | { |
97aff369 | 2879 | dVAR; |
d3acc0f7 | 2880 | dSP; |
97aff369 | 2881 | SV* sv; |
e788e7d3 | 2882 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 | 2883 | PUTBACK; |
be41e5d9 NC |
2884 | sv = Perl_newSVpvf(aTHX_ "require q%c%s%c", 0, pv, 0); |
2885 | eval_sv(sv_2mortal(sv), G_DISCARD); | |
d3acc0f7 JP |
2886 | SPAGAIN; |
2887 | POPSTACK; | |
79072805 LW |
2888 | } |
2889 | ||
79072805 | 2890 | void |
e1ec3a88 | 2891 | Perl_magicname(pTHX_ const char *sym, const char *name, I32 namlen) |
79072805 | 2892 | { |
71315bf2 | 2893 | register GV * const gv = gv_fetchpv(sym, GV_ADD, SVt_PV); |
79072805 | 2894 | |
c4420975 | 2895 | if (gv) |
14befaf4 | 2896 | sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen); |
79072805 LW |
2897 | } |
2898 | ||
76e3520e | 2899 | STATIC void |
e1ec3a88 | 2900 | S_usage(pTHX_ const char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2901 | { |
ab821d7f | 2902 | /* This message really ought to be max 23 lines. |
75c72d73 | 2903 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2904 | |
27da23d5 | 2905 | static const char * const usage_msg[] = { |
aefc56c5 SF |
2906 | "-0[octal] specify record separator (\\0, if no argument)", |
2907 | "-A[mod][=pattern] activate all/given assertions", | |
2908 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
2909 | "-C[number/list] enables the listed Unicode features", | |
2910 | "-c check syntax only (runs BEGIN and CHECK blocks)", | |
2911 | "-d[:debugger] run program under debugger", | |
2912 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
2913 | "-e program one line of program (several -e's allowed, omit programfile)", | |
bc9b29db | 2914 | "-E program like -e, but enables all optional features", |
aefc56c5 | 2915 | "-f don't do $sitelib/sitecustomize.pl at startup", |
aefc56c5 SF |
2916 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
2917 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
2918 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
2919 | "-l[octal] enable line ending processing, specifies line terminator", | |
2920 | "-[mM][-]module execute \"use/no module...\" before executing program", | |
2921 | "-n assume \"while (<>) { ... }\" loop around program", | |
2922 | "-p assume loop like -n but print line also, like sed", | |
2923 | "-P run program through C preprocessor before compilation", | |
2924 | "-s enable rudimentary parsing for switches after programfile", | |
2925 | "-S look for programfile using PATH environment variable", | |
2926 | "-t enable tainting warnings", | |
2927 | "-T enable tainting checks", | |
2928 | "-u dump core after parsing program", | |
2929 | "-U allow unsafe operations", | |
2930 | "-v print version, subversion (includes VERY IMPORTANT perl info)", | |
2931 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
2932 | "-w enable many useful warnings (RECOMMENDED)", | |
2933 | "-W enable all warnings", | |
2934 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", | |
2935 | "-X disable all warnings", | |
fb73857a | 2936 | "\n", |
2937 | NULL | |
2938 | }; | |
27da23d5 | 2939 | const char * const *p = usage_msg; |
fb73857a | 2940 | |
b0e47665 GS |
2941 | PerlIO_printf(PerlIO_stdout(), |
2942 | "\nUsage: %s [switches] [--] [programfile] [arguments]", | |
2943 | name); | |
fb73857a | 2944 | while (*p) |
b0e47665 | 2945 | PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); |
4633a7c4 LW |
2946 | } |
2947 | ||
b4ab917c DM |
2948 | /* convert a string of -D options (or digits) into an int. |
2949 | * sets *s to point to the char after the options */ | |
2950 | ||
2951 | #ifdef DEBUGGING | |
2952 | int | |
e1ec3a88 | 2953 | Perl_get_debug_opts(pTHX_ const char **s, bool givehelp) |
b4ab917c | 2954 | { |
27da23d5 | 2955 | static const char * const usage_msgd[] = { |
e6e64d9b JC |
2956 | " Debugging flag values: (see also -d)", |
2957 | " p Tokenizing and parsing (with v, displays parse stack)", | |
3679267a | 2958 | " s Stack snapshots (with v, displays all stacks)", |
e6e64d9b JC |
2959 | " l Context (loop) stack processing", |
2960 | " t Trace execution", | |
2961 | " o Method and overloading resolution", | |
2962 | " c String/numeric conversions", | |
2963 | " P Print profiling info, preprocessor command for -P, source file input state", | |
2964 | " m Memory allocation", | |
2965 | " f Format processing", | |
2966 | " r Regular expression parsing and execution", | |
2967 | " x Syntax tree dump", | |
3679267a | 2968 | " u Tainting checks", |
e6e64d9b JC |
2969 | " H Hash dump -- usurps values()", |
2970 | " X Scratchpad allocation", | |
2971 | " D Cleaning up", | |
2972 | " S Thread synchronization", | |
2973 | " T Tokenising", | |
2974 | " R Include reference counts of dumped variables (eg when using -Ds)", | |
2975 | " J Do not s,t,P-debug (Jump over) opcodes within package DB", | |
2976 | " v Verbose: use in conjunction with other flags", | |
2977 | " C Copy On Write", | |
2978 | " A Consistency checks on internal structures", | |
3679267a | 2979 | " q quiet - currently only suppresses the 'EXECUTING' message", |
e6e64d9b JC |
2980 | NULL |
2981 | }; | |
b4ab917c DM |
2982 | int i = 0; |
2983 | if (isALPHA(**s)) { | |
2984 | /* if adding extra options, remember to update DEBUG_MASK */ | |
88d2d28a | 2985 | static const char debopts[] = "psltocPmfrxuUHXDSTRJvCAq"; |
b4ab917c DM |
2986 | |
2987 | for (; isALNUM(**s); (*s)++) { | |
c4420975 | 2988 | const char * const d = strchr(debopts,**s); |
b4ab917c DM |
2989 | if (d) |
2990 | i |= 1 << (d - debopts); | |
2991 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
2992 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
2993 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
2994 | } |
2995 | } | |
e6e64d9b | 2996 | else if (isDIGIT(**s)) { |
b4ab917c DM |
2997 | i = atoi(*s); |
2998 | for (; isALNUM(**s); (*s)++) ; | |
2999 | } | |
ddcf8bc1 | 3000 | else if (givehelp) { |
06e869a4 | 3001 | const char *const *p = usage_msgd; |
e6e64d9b JC |
3002 | while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); |
3003 | } | |
b4ab917c DM |
3004 | # ifdef EBCDIC |
3005 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
3006 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
3007 | "-Dp not implemented on this platform\n"); | |
3008 | # endif | |
3009 | return i; | |
3010 | } | |
3011 | #endif | |
3012 | ||
79072805 LW |
3013 | /* This routine handles any switches that can be given during run */ |
3014 | ||
3015 | char * | |
97bd5664 | 3016 | Perl_moreswitches(pTHX_ char *s) |
79072805 | 3017 | { |
27da23d5 | 3018 | dVAR; |
84c133a0 | 3019 | UV rschar; |
79072805 LW |
3020 | |
3021 | switch (*s) { | |
3022 | case '0': | |
a863c7d1 | 3023 | { |
f2095865 | 3024 | I32 flags = 0; |
a3b680e6 | 3025 | STRLEN numlen; |
f2095865 JH |
3026 | |
3027 | SvREFCNT_dec(PL_rs); | |
3028 | if (s[1] == 'x' && s[2]) { | |
a3b680e6 | 3029 | const char *e = s+=2; |
f2095865 JH |
3030 | U8 *tmps; |
3031 | ||
a3b680e6 AL |
3032 | while (*e) |
3033 | e++; | |
f2095865 JH |
3034 | numlen = e - s; |
3035 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
3036 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
3037 | if (s + numlen < e) { | |
3038 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
3039 | numlen = 0; | |
3040 | s--; | |
3041 | } | |
396482e1 | 3042 | PL_rs = newSVpvs(""); |
c5661c80 | 3043 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
3044 | tmps = (U8*)SvPVX(PL_rs); |
3045 | uvchr_to_utf8(tmps, rschar); | |
3046 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
3047 | SvUTF8_on(PL_rs); | |
3048 | } | |
3049 | else { | |
3050 | numlen = 4; | |
3051 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
3052 | if (rschar & ~((U8)~0)) | |
3053 | PL_rs = &PL_sv_undef; | |
3054 | else if (!rschar && numlen >= 2) | |
396482e1 | 3055 | PL_rs = newSVpvs(""); |
f2095865 JH |
3056 | else { |
3057 | char ch = (char)rschar; | |
3058 | PL_rs = newSVpvn(&ch, 1); | |
3059 | } | |
3060 | } | |
800633c3 | 3061 | sv_setsv(get_sv("/", TRUE), PL_rs); |
f2095865 | 3062 | return s + numlen; |
a863c7d1 | 3063 | } |
46487f74 | 3064 | case 'C': |
a05d7ebb | 3065 | s++; |
dd374669 | 3066 | PL_unicode = parse_unicode_opts( (const char **)&s ); |
5a22a2bb NC |
3067 | if (PL_unicode & PERL_UNICODE_UTF8CACHEASSERT_FLAG) |
3068 | PL_utf8cache = -1; | |
46487f74 | 3069 | return s; |
2304df62 | 3070 | case 'F': |
3280af22 | 3071 | PL_minus_F = TRUE; |
ebce5377 RGS |
3072 | PL_splitstr = ++s; |
3073 | while (*s && !isSPACE(*s)) ++s; | |
e49e380e | 3074 | PL_splitstr = savepvn(PL_splitstr, s - PL_splitstr); |
2304df62 | 3075 | return s; |
79072805 | 3076 | case 'a': |
3280af22 | 3077 | PL_minus_a = TRUE; |
79072805 LW |
3078 | s++; |
3079 | return s; | |
3080 | case 'c': | |
3280af22 | 3081 | PL_minus_c = TRUE; |
79072805 LW |
3082 | s++; |
3083 | return s; | |
3084 | case 'd': | |
97bd5664 | 3085 | forbid_setid('d', -1); |
4633a7c4 | 3086 | s++; |
2cbb2ee1 RGS |
3087 | |
3088 | /* -dt indicates to the debugger that threads will be used */ | |
3089 | if (*s == 't' && !isALNUM(s[1])) { | |
3090 | ++s; | |
3091 | my_setenv("PERL5DB_THREADED", "1"); | |
3092 | } | |
3093 | ||
70c94a19 RR |
3094 | /* The following permits -d:Mod to accepts arguments following an = |
3095 | in the fashion that -MSome::Mod does. */ | |
3096 | if (*s == ':' || *s == '=') { | |
06b5626a | 3097 | const char *start; |
396482e1 | 3098 | SV * const sv = newSVpvs("use Devel::"); |
70c94a19 RR |
3099 | start = ++s; |
3100 | /* We now allow -d:Module=Foo,Bar */ | |
3101 | while(isALNUM(*s) || *s==':') ++s; | |
3102 | if (*s != '=') | |
3103 | sv_catpv(sv, start); | |
3104 | else { | |
3105 | sv_catpvn(sv, start, s-start); | |
95a2b409 RGS |
3106 | /* Don't use NUL as q// delimiter here, this string goes in the |
3107 | * environment. */ | |
3108 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q{%s});", ++s); | |
70c94a19 | 3109 | } |
4633a7c4 | 3110 | s += strlen(s); |
184f32ec | 3111 | my_setenv("PERL5DB", SvPV_nolen_const(sv)); |
4633a7c4 | 3112 | } |
ed094faf | 3113 | if (!PL_perldb) { |
3280af22 | 3114 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 3115 | init_debugger(); |
ed094faf | 3116 | } |
79072805 LW |
3117 | return s; |
3118 | case 'D': | |
0453d815 | 3119 | { |
79072805 | 3120 | #ifdef DEBUGGING |
97bd5664 | 3121 | forbid_setid('D', -1); |
b4ab917c | 3122 | s++; |
dd374669 | 3123 | PL_debug = get_debug_opts( (const char **)&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 3124 | #else /* !DEBUGGING */ |
0453d815 | 3125 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 3126 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 3127 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 3128 | for (s++; isALNUM(*s); s++) ; |
79072805 | 3129 | #endif |
79072805 | 3130 | return s; |
0453d815 | 3131 | } |
4633a7c4 | 3132 | case 'h': |
ac27b0f5 | 3133 | usage(PL_origargv[0]); |
7ca617d0 | 3134 | my_exit(0); |
79072805 | 3135 | case 'i': |
43c5f42d | 3136 | Safefree(PL_inplace); |
c030f24b GH |
3137 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
3138 | if (*(s+1) == '\0') { | |
c86a4f2e | 3139 | PL_inplace = savepvs(".bak"); |
c030f24b GH |
3140 | return s+1; |
3141 | } | |
3142 | #endif /* __CYGWIN__ */ | |
5ef5d758 | 3143 | { |
d4c19fe8 | 3144 | const char * const start = ++s; |
5ef5d758 NC |
3145 | while (*s && !isSPACE(*s)) |
3146 | ++s; | |
3147 | ||
3148 | PL_inplace = savepvn(start, s - start); | |
3149 | } | |
7b8d334a | 3150 | if (*s) { |
5ef5d758 | 3151 | ++s; |
7b8d334a | 3152 | if (*s == '-') /* Additional switches on #! line. */ |
5ef5d758 | 3153 | s++; |
7b8d334a | 3154 | } |
fb73857a | 3155 | return s; |
4e49a025 | 3156 | case 'I': /* -I handled both here and in parse_body() */ |
97bd5664 | 3157 | forbid_setid('I', -1); |
fb73857a | 3158 | ++s; |
3159 | while (*s && isSPACE(*s)) | |
3160 | ++s; | |
3161 | if (*s) { | |
774d564b | 3162 | char *e, *p; |
0df16ed7 GS |
3163 | p = s; |
3164 | /* ignore trailing spaces (possibly followed by other switches) */ | |
3165 | do { | |
3166 | for (e = p; *e && !isSPACE(*e); e++) ; | |
3167 | p = e; | |
3168 | while (isSPACE(*p)) | |
3169 | p++; | |
3170 | } while (*p && *p != '-'); | |
3171 | e = savepvn(s, e-s); | |
88fe16b2 | 3172 | incpush(e, TRUE, TRUE, FALSE, FALSE); |
0df16ed7 GS |
3173 | Safefree(e); |
3174 | s = p; | |
3175 | if (*s == '-') | |
3176 | s++; | |
79072805 LW |
3177 | } |
3178 | else | |
a67e862a | 3179 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 3180 | return s; |
79072805 | 3181 | case 'l': |
3280af22 | 3182 | PL_minus_l = TRUE; |
79072805 | 3183 | s++; |
7889fe52 NIS |
3184 | if (PL_ors_sv) { |
3185 | SvREFCNT_dec(PL_ors_sv); | |
a0714e2c | 3186 | PL_ors_sv = NULL; |
7889fe52 | 3187 | } |
79072805 | 3188 | if (isDIGIT(*s)) { |
53305cf1 | 3189 | I32 flags = 0; |
a3b680e6 | 3190 | STRLEN numlen; |
396482e1 | 3191 | PL_ors_sv = newSVpvs("\n"); |
53305cf1 NC |
3192 | numlen = 3 + (*s == '0'); |
3193 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
3194 | s += numlen; |
3195 | } | |
3196 | else { | |
8bfdd7d9 | 3197 | if (RsPARA(PL_rs)) { |
396482e1 | 3198 | PL_ors_sv = newSVpvs("\n\n"); |
7889fe52 NIS |
3199 | } |
3200 | else { | |
8bfdd7d9 | 3201 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 3202 | } |
79072805 LW |
3203 | } |
3204 | return s; | |
06492da6 | 3205 | case 'A': |
97bd5664 | 3206 | forbid_setid('A', -1); |
aefc56c5 SF |
3207 | s++; |
3208 | { | |
44f8325f | 3209 | char * const start = s; |
396482e1 | 3210 | SV * const sv = newSVpvs("use assertions::activate"); |
aefc56c5 SF |
3211 | while(isALNUM(*s) || *s == ':') ++s; |
3212 | if (s != start) { | |
396482e1 | 3213 | sv_catpvs(sv, "::"); |
aefc56c5 SF |
3214 | sv_catpvn(sv, start, s-start); |
3215 | } | |
3216 | if (*s == '=') { | |
0c5a913d | 3217 | Perl_sv_catpvf(aTHX_ sv, " split(/,/,q%c%s%c)", 0, ++s, 0); |
aefc56c5 SF |
3218 | s+=strlen(s); |
3219 | } | |
3220 | else if (*s != '\0') { | |
551405c4 | 3221 | Perl_croak(aTHX_ "Can't use '%c' after -A%.*s", *s, (int)(s-start), start); |
aefc56c5 | 3222 | } |
29a861e7 | 3223 | Perl_av_create_and_push(aTHX_ &PL_preambleav, sv); |
aefc56c5 | 3224 | return s; |
06492da6 | 3225 | } |
1a30305b | 3226 | case 'M': |
97bd5664 | 3227 | forbid_setid('M', -1); /* XXX ? */ |
1a30305b | 3228 | /* FALL THROUGH */ |
3229 | case 'm': | |
97bd5664 | 3230 | forbid_setid('m', -1); /* XXX ? */ |
1a30305b | 3231 | if (*++s) { |
a5f75d66 | 3232 | char *start; |
11343788 | 3233 | SV *sv; |
e1ec3a88 | 3234 | const char *use = "use "; |
a5f75d66 | 3235 | /* -M-foo == 'no foo' */ |
d0043bd1 NC |
3236 | /* Leading space on " no " is deliberate, to make both |
3237 | possibilities the same length. */ | |
3238 | if (*s == '-') { use = " no "; ++s; } | |
3239 | sv = newSVpvn(use,4); | |
a5f75d66 | 3240 | start = s; |
1a30305b | 3241 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 3242 | while(isALNUM(*s) || *s==':') ++s; |
3243 | if (*s != '=') { | |
11343788 | 3244 | sv_catpv(sv, start); |
c07a80fd | 3245 | if (*(start-1) == 'm') { |
3246 | if (*s != '\0') | |
cea2e8a9 | 3247 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
396482e1 | 3248 | sv_catpvs( sv, " ()"); |
c07a80fd | 3249 | } |
3250 | } else { | |
6df41af2 | 3251 | if (s == start) |
be98fb35 GS |
3252 | Perl_croak(aTHX_ "Module name required with -%c option", |
3253 | s[-1]); | |
11343788 | 3254 | sv_catpvn(sv, start, s-start); |
396482e1 GA |
3255 | sv_catpvs(sv, " split(/,/,q"); |
3256 | sv_catpvs(sv, "\0"); /* Use NUL as q//-delimiter. */ | |
11343788 | 3257 | sv_catpv(sv, ++s); |
396482e1 | 3258 | sv_catpvs(sv, "\0)"); |
c07a80fd | 3259 | } |
1a30305b | 3260 | s += strlen(s); |
29a861e7 | 3261 | Perl_av_create_and_push(aTHX_ &PL_preambleav, sv); |
1a30305b | 3262 | } |
3263 | else | |
9e81e6a1 | 3264 | Perl_croak(aTHX_ "Missing argument to -%c", *(s-1)); |
1a30305b | 3265 | return s; |
79072805 | 3266 | case 'n': |
3280af22 | 3267 | PL_minus_n = TRUE; |
79072805 LW |
3268 | s++; |
3269 | return s; | |
3270 | case 'p': | |
3280af22 | 3271 | PL_minus_p = TRUE; |
79072805 LW |
3272 | s++; |
3273 | return s; | |
3274 | case 's': | |
97bd5664 | 3275 | forbid_setid('s', -1); |
3280af22 | 3276 | PL_doswitches = TRUE; |
79072805 LW |
3277 | s++; |
3278 | return s; | |
6537fe72 MS |
3279 | case 't': |
3280 | if (!PL_tainting) | |
22f7c9c9 | 3281 | TOO_LATE_FOR('t'); |
6537fe72 MS |
3282 | s++; |
3283 | return s; | |
463ee0b2 | 3284 | case 'T': |
3280af22 | 3285 | if (!PL_tainting) |
22f7c9c9 | 3286 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
3287 | s++; |
3288 | return s; | |
79072805 | 3289 | case 'u': |
bf4acbe4 GS |
3290 | #ifdef MACOS_TRADITIONAL |
3291 | Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); | |
3292 | #endif | |
3280af22 | 3293 | PL_do_undump = TRUE; |
79072805 LW |
3294 | s++; |
3295 | return s; | |
3296 | case 'U': | |
3280af22 | 3297 | PL_unsafe = TRUE; |
79072805 LW |
3298 | s++; |
3299 | return s; | |
3300 | case 'v': | |
d7aa5382 | 3301 | if (!sv_derived_from(PL_patchlevel, "version")) |
ac0e6a2f | 3302 | upg_version(PL_patchlevel, TRUE); |
8e9464f1 | 3303 | #if !defined(DGUX) |
b0e47665 | 3304 | PerlIO_printf(PerlIO_stdout(), |
7850f74c GA |
3305 | Perl_form(aTHX_ "\nThis is perl, %"SVf |
3306 | #ifdef PERL_PATCHNUM | |
3307 | " DEVEL" STRINGIFY(PERL_PATCHNUM) | |
3308 | #endif | |
3309 | " built for %s", | |
be2597df | 3310 | SVfARG(vstringify(PL_patchlevel)), |
95b63a38 | 3311 | ARCHNAME)); |
8e9464f1 JH |
3312 | #else /* DGUX */ |
3313 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
3314 | PerlIO_printf(PerlIO_stdout(), | |
52ea0aec | 3315 | Perl_form(aTHX_ "\nThis is perl, %"SVf"\n", |
be2597df | 3316 | SVfARG(vstringify(PL_patchlevel)))); |
8e9464f1 JH |
3317 | PerlIO_printf(PerlIO_stdout(), |
3318 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
3319 | OSNAME, __DATE__, __TIME__)); | |
3320 | PerlIO_printf(PerlIO_stdout(), | |
3321 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 3322 | OSVERS)); |
8e9464f1 JH |
3323 | #endif /* !DGUX */ |
3324 | ||
fb73857a | 3325 | #if defined(LOCAL_PATCH_COUNT) |
3326 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
3327 | PerlIO_printf(PerlIO_stdout(), |
3328 | "\n(with %d registered patch%s, " | |
3329 | "see perl -V for more detail)", | |
bb7a0f54 | 3330 | LOCAL_PATCH_COUNT, |
b0e47665 | 3331 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 | 3332 | #endif |
1a30305b | 3333 | |
b0e47665 | 3334 | PerlIO_printf(PerlIO_stdout(), |
34ce1597 | 3335 | "\n\nCopyright 1987-2007, Larry Wall\n"); |
eae9c151 JH |
3336 | #ifdef MACOS_TRADITIONAL |
3337 | PerlIO_printf(PerlIO_stdout(), | |
be3c0a43 | 3338 | "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" |
03765510 | 3339 | "maintained by Chris Nandor\n"); |
eae9c151 | 3340 | #endif |
79072805 | 3341 | #ifdef MSDOS |
b0e47665 GS |
3342 | PerlIO_printf(PerlIO_stdout(), |
3343 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 3344 | #endif |
3345 | #ifdef DJGPP | |
b0e47665 GS |
3346 | PerlIO_printf(PerlIO_stdout(), |
3347 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
3348 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 3349 | #endif |
79072805 | 3350 | #ifdef OS2 |
b0e47665 GS |
3351 | PerlIO_printf(PerlIO_stdout(), |
3352 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 3353 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 3354 | #endif |
79072805 | 3355 | #ifdef atarist |
b0e47665 GS |
3356 | PerlIO_printf(PerlIO_stdout(), |
3357 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 3358 | #endif |
a3f9223b | 3359 | #ifdef __BEOS__ |
b0e47665 GS |
3360 | PerlIO_printf(PerlIO_stdout(), |
3361 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 3362 | #endif |
1d84e8df | 3363 | #ifdef MPE |
b0e47665 | 3364 | PerlIO_printf(PerlIO_stdout(), |
e583a879 | 3365 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 3366 | #endif |
9d116dd7 | 3367 | #ifdef OEMVS |
b0e47665 GS |
3368 | PerlIO_printf(PerlIO_stdout(), |
3369 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 3370 | #endif |
495c5fdc | 3371 | #ifdef __VOS__ |
b0e47665 | 3372 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 3373 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 3374 | #endif |
092bebab | 3375 | #ifdef __OPEN_VM |
b0e47665 GS |
3376 | PerlIO_printf(PerlIO_stdout(), |
3377 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 3378 | #endif |
a1a0e61e | 3379 | #ifdef POSIX_BC |
b0e47665 GS |
3380 | PerlIO_printf(PerlIO_stdout(), |
3381 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 3382 | #endif |
61ae2fbf | 3383 | #ifdef __MINT__ |
b0e47665 GS |
3384 | PerlIO_printf(PerlIO_stdout(), |
3385 | "MiNT port by Guido Flohr, 1997-1999\n"); | |
61ae2fbf | 3386 | #endif |
f83d2536 | 3387 | #ifdef EPOC |
b0e47665 | 3388 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 3389 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 3390 | #endif |
e1caacb4 | 3391 | #ifdef UNDER_CE |
b475b3e6 JH |
3392 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
3393 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
3394 | wce_hitreturn(); |
3395 | #endif | |
a0fd4948 | 3396 | #ifdef __SYMBIAN32__ |
27da23d5 JH |
3397 | PerlIO_printf(PerlIO_stdout(), |
3398 | "Symbian port by Nokia, 2004-2005\n"); | |
3399 | #endif | |
baed7233 DL |
3400 | #ifdef BINARY_BUILD_NOTICE |
3401 | BINARY_BUILD_NOTICE; | |
3402 | #endif | |
b0e47665 GS |
3403 | PerlIO_printf(PerlIO_stdout(), |
3404 | "\n\ | |
79072805 | 3405 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 3406 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 | 3407 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
a0288114 | 3408 | this system using \"man perl\" or \"perldoc perl\". If you have access to the\n\ |
c9e30dd8 | 3409 | Internet, point your browser at http://www.perl.org/, the Perl Home Page.\n\n"); |
7ca617d0 | 3410 | my_exit(0); |
79072805 | 3411 | case 'w': |
b2e5e6ba | 3412 | if (! (PL_dowarn & G_WARN_ALL_MASK)) { |
ac27b0f5 | 3413 | PL_dowarn |= G_WARN_ON; |
b2e5e6ba | 3414 | } |
599cee73 PM |
3415 | s++; |
3416 | return s; | |
3417 | case 'W': | |
ac27b0f5 | 3418 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d | 3419 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 3420 | PerlMemShared_free(PL_compiling.cop_warnings); |
d3a7d8c7 | 3421 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
3422 | s++; |
3423 | return s; | |
3424 | case 'X': | |
ac27b0f5 | 3425 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d | 3426 | if (!specialWARN(PL_compiling.cop_warnings)) |
72dc9ed5 | 3427 | PerlMemShared_free(PL_compiling.cop_warnings); |
d3a7d8c7 | 3428 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
3429 | s++; |
3430 | return s; | |
a0d0e21e | 3431 | case '*': |
79072805 LW |
3432 | case ' ': |
3433 | if (s[1] == '-') /* Additional switches on #! line. */ | |
3434 | return s+2; | |
3435 | break; | |
a0d0e21e | 3436 | case '-': |
79072805 | 3437 | case 0: |
51882d45 | 3438 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
3439 | case '\r': |
3440 | #endif | |
79072805 LW |
3441 | case '\n': |
3442 | case '\t': | |
3443 | break; | |
aa689395 | 3444 | #ifdef ALTERNATE_SHEBANG |
3445 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
3446 | break; | |
3447 | #endif | |
a0d0e21e | 3448 | case 'P': |
3280af22 | 3449 | if (PL_preprocess) |
a0d0e21e LW |
3450 | return s+1; |
3451 | /* FALL THROUGH */ | |
79072805 | 3452 | default: |
cea2e8a9 | 3453 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 | 3454 | } |
bd61b366 | 3455 | return NULL; |
79072805 LW |
3456 | } |
3457 | ||
3458 | /* compliments of Tom Christiansen */ | |
3459 | ||
3460 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 3461 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
3462 | |
3463 | void | |
864dbfa3 | 3464 | Perl_my_unexec(pTHX) |
79072805 | 3465 | { |
b37c2d43 | 3466 | PERL_UNUSED_CONTEXT; |
79072805 | 3467 | #ifdef UNEXEC |
b37c2d43 AL |
3468 | SV * prog = newSVpv(BIN_EXP, 0); |
3469 | SV * file = newSVpv(PL_origfilename, 0); | |
ee580363 | 3470 | int status = 1; |
79072805 LW |
3471 | extern int etext; |
3472 | ||
396482e1 | 3473 | sv_catpvs(prog, "/perl"); |
396482e1 | 3474 | sv_catpvs(file, ".perldump"); |
79072805 | 3475 | |
ee580363 GS |
3476 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
3477 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 3478 | PerlProc_exit(status); |
79072805 | 3479 | #else |
a5f75d66 AD |
3480 | # ifdef VMS |
3481 | # include <lib$routines.h> | |
3482 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
84d78eb7 YO |
3483 | # elif defined(WIN32) || defined(__CYGWIN__) |
3484 | Perl_croak(aTHX_ "dump is not supported"); | |
aa689395 | 3485 | # else |
79072805 | 3486 | ABORT(); /* for use with undump */ |
aa689395 | 3487 | # endif |
a5f75d66 | 3488 | #endif |
79072805 LW |
3489 | } |
3490 | ||
cb68f92d GS |
3491 | /* initialize curinterp */ |
3492 | STATIC void | |
cea2e8a9 | 3493 | S_init_interp(pTHX) |
cb68f92d | 3494 | { |
97aff369 | 3495 | dVAR; |
acfe0abc GS |
3496 | #ifdef MULTIPLICITY |
3497 | # define PERLVAR(var,type) | |
3498 | # define PERLVARA(var,n,type) | |
3499 | # if defined(PERL_IMPLICIT_CONTEXT) | |
b7f7fff6 NC |
3500 | # define PERLVARI(var,type,init) aTHX->var = init; |
3501 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
3967c732 | 3502 | # else |
acfe0abc GS |
3503 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
3504 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 3505 | # endif |
acfe0abc | 3506 | # include "intrpvar.h" |
b7f7fff6 | 3507 | # include "thrdvar.h" |
acfe0abc GS |
3508 | # undef PERLVAR |
3509 | # undef PERLVARA | |
3510 | # undef PERLVARI | |
3511 | # undef PERLVARIC | |
3512 | #else | |
3513 | # define PERLVAR(var,type) | |
3514 | # define PERLVARA(var,n,type) | |
3515 | # define PERLVARI(var,type,init) PL_##var = init; | |
3516 | # define PERLVARIC(var,type,init) PL_##var = init; | |
3517 | # include "intrpvar.h" | |
b7f7fff6 | 3518 | # include "thrdvar.h" |
acfe0abc GS |
3519 | # undef PERLVAR |
3520 | # undef PERLVARA | |
3521 | # undef PERLVARI | |
3522 | # undef PERLVARIC | |
cb68f92d GS |
3523 | #endif |
3524 | ||
46ab3289 NC |
3525 | /* As these are inside a structure, PERLVARI isn't capable of initialising |
3526 | them */ | |
6c3f0a89 NC |
3527 | PL_reg_oldcurpm = PL_reg_curpm = NULL; |
3528 | PL_reg_poscache = PL_reg_starttry = NULL; | |
cb68f92d GS |
3529 | } |
3530 | ||
76e3520e | 3531 | STATIC void |
cea2e8a9 | 3532 | S_init_main_stash(pTHX) |
79072805 | 3533 | { |
97aff369 | 3534 | dVAR; |
463ee0b2 | 3535 | GV *gv; |
6e72f9df | 3536 | |
3280af22 | 3537 | PL_curstash = PL_defstash = newHV(); |
23579a14 NC |
3538 | /* We know that the string "main" will be in the global shared string |
3539 | table, so it's a small saving to use it rather than allocate another | |
3540 | 8 bytes. */ | |
18916d0d | 3541 | PL_curstname = newSVpvs_share("main"); |
fafc274c | 3542 | gv = gv_fetchpvs("main::", GV_ADD|GV_NOTQUAL, SVt_PVHV); |
23579a14 NC |
3543 | /* If we hadn't caused another reference to "main" to be in the shared |
3544 | string table above, then it would be worth reordering these two, | |
3545 | because otherwise all we do is delete "main" from it as a consequence | |
3546 | of the SvREFCNT_dec, only to add it again with hv_name_set */ | |
adbc6bb1 | 3547 | SvREFCNT_dec(GvHV(gv)); |
23579a14 | 3548 | hv_name_set(PL_defstash, "main", 4, 0); |
b37c2d43 | 3549 | GvHV(gv) = (HV*)SvREFCNT_inc_simple(PL_defstash); |
463ee0b2 | 3550 | SvREADONLY_on(gv); |
fafc274c NC |
3551 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpvs("INC", GV_ADD|GV_NOTQUAL, |
3552 | SVt_PVAV))); | |
5a5094bd | 3553 | SvREFCNT_inc_simple_void(PL_incgv); /* Don't allow it to be freed */ |
3280af22 | 3554 | GvMULTI_on(PL_incgv); |
fafc274c | 3555 | PL_hintgv = gv_fetchpvs("\010", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^H */ |
3280af22 | 3556 | GvMULTI_on(PL_hintgv); |
fafc274c | 3557 | PL_defgv = gv_fetchpvs("_", GV_ADD|GV_NOTQUAL, SVt_PVAV); |
5a5094bd | 3558 | SvREFCNT_inc_simple_void(PL_defgv); |
fafc274c | 3559 | PL_errgv = gv_HVadd(gv_fetchpvs("@", GV_ADD|GV_NOTQUAL, SVt_PV)); |
5a5094bd | 3560 | SvREFCNT_inc_simple_void(PL_errgv); |
3280af22 | 3561 | GvMULTI_on(PL_errgv); |
fafc274c | 3562 | PL_replgv = gv_fetchpvs("\022", GV_ADD|GV_NOTQUAL, SVt_PV); /* ^R */ |
3280af22 | 3563 | GvMULTI_on(PL_replgv); |
cea2e8a9 | 3564 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
c69033f2 NC |
3565 | #ifdef PERL_DONT_CREATE_GVSV |
3566 | gv_SVadd(PL_errgv); | |
3567 | #endif | |
38a03e6e MB |
3568 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
3569 | sv_setpvn(ERRSV, "", 0); | |
3280af22 | 3570 | PL_curstash = PL_defstash; |
11faa288 | 3571 | CopSTASH_set(&PL_compiling, PL_defstash); |
5c1737d1 NC |
3572 | PL_debstash = GvHV(gv_fetchpvs("DB::", GV_ADDMULTI, SVt_PVHV)); |
3573 | PL_globalstash = GvHV(gv_fetchpvs("CORE::GLOBAL::", GV_ADDMULTI, | |
3574 | SVt_PVHV)); | |
4633a7c4 | 3575 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 3576 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
3577 | } |
3578 | ||
fdf5d70d | 3579 | STATIC int |
cdd8118e NC |
3580 | S_open_script(pTHX_ const char *scriptname, bool dosearch, SV *sv, |
3581 | int *suidscript) | |
79072805 | 3582 | { |
ae3f3efd | 3583 | #ifndef IAMSUID |
e1ec3a88 AL |
3584 | const char *quote; |
3585 | const char *code; | |
3586 | const char *cpp_discard_flag; | |
3587 | const char *perl; | |
ae3f3efd | 3588 | #endif |
fdf5d70d | 3589 | int fdscript = -1; |
27da23d5 | 3590 | dVAR; |
1b24ed4b | 3591 | |
cdd8118e | 3592 | *suidscript = -1; |
79072805 | 3593 | |
3280af22 | 3594 | if (PL_e_script) { |
89529cee | 3595 | PL_origfilename = savepvs("-e"); |
96436eeb | 3596 | } |
6c4ab083 GS |
3597 | else { |
3598 | /* if find_script() returns, it returns a malloc()-ed value */ | |
dd374669 | 3599 | scriptname = PL_origfilename = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
3600 | |
3601 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
e1ec3a88 | 3602 | const char *s = scriptname + 8; |
fdf5d70d | 3603 | fdscript = atoi(s); |
6c4ab083 GS |
3604 | while (isDIGIT(*s)) |
3605 | s++; | |
3606 | if (*s) { | |
ae3f3efd PS |
3607 | /* PSz 18 Feb 04 |
3608 | * Tell apart "normal" usage of fdscript, e.g. | |
3609 | * with bash on FreeBSD: | |
3610 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
3611 | * from usage in suidperl. | |
3612 | * Does any "normal" usage leave garbage after the number??? | |
3613 | * Is it a mistake to use a similar /dev/fd/ construct for | |
3614 | * suidperl? | |
3615 | */ | |
cdd8118e | 3616 | *suidscript = 1; |
ae3f3efd PS |
3617 | /* PSz 20 Feb 04 |
3618 | * Be supersafe and do some sanity-checks. | |
3619 | * Still, can we be sure we got the right thing? | |
3620 | */ | |
3621 | if (*s != '/') { | |
3622 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3623 | } | |
3624 | if (! *(s+1)) { | |
3625 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3626 | } | |
6c4ab083 | 3627 | scriptname = savepv(s + 1); |
3280af22 | 3628 | Safefree(PL_origfilename); |
dd374669 | 3629 | PL_origfilename = (char *)scriptname; |
6c4ab083 GS |
3630 | } |
3631 | } | |
3632 | } | |
3633 | ||
05ec9bb3 | 3634 | CopFILE_free(PL_curcop); |
57843af0 | 3635 | CopFILE_set(PL_curcop, PL_origfilename); |
770526c1 | 3636 | if (*PL_origfilename == '-' && PL_origfilename[1] == '\0') |
dd374669 | 3637 | scriptname = (char *)""; |
fdf5d70d NC |
3638 | if (fdscript >= 0) { |
3639 | PL_rsfp = PerlIO_fdopen(fdscript,PERL_SCRIPT_MODE); | |
1b24ed4b MS |
3640 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3641 | if (PL_rsfp) | |
3642 | /* ensure close-on-exec */ | |
3643 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3644 | # endif | |
96436eeb | 3645 | } |
ae3f3efd PS |
3646 | #ifdef IAMSUID |
3647 | else { | |
86207487 NC |
3648 | Perl_croak(aTHX_ "sperl needs fd script\n" |
3649 | "You should not call sperl directly; do you need to " | |
3650 | "change a #! line\nfrom sperl to perl?\n"); | |
3651 | ||
ae3f3efd PS |
3652 | /* PSz 11 Nov 03 |
3653 | * Do not open (or do other fancy stuff) while setuid. | |
3654 | * Perl does the open, and hands script to suidperl on a fd; | |
3655 | * suidperl only does some checks, sets up UIDs and re-execs | |
3656 | * perl with that fd as it has always done. | |
3657 | */ | |
3658 | } | |
cdd8118e | 3659 | if (*suidscript != 1) { |
ae3f3efd PS |
3660 | Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); |
3661 | } | |
3662 | #else /* IAMSUID */ | |
3280af22 | 3663 | else if (PL_preprocess) { |
c4420975 | 3664 | const char * const cpp_cfg = CPPSTDIN; |
396482e1 | 3665 | SV * const cpp = newSVpvs(""); |
561b68a9 | 3666 | SV * const cmd = newSV(0); |
46fc3d4c | 3667 | |
ae58f265 JH |
3668 | if (cpp_cfg[0] == 0) /* PERL_MICRO? */ |
3669 | Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined"); | |
46fc3d4c | 3670 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 | 3671 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 3672 | sv_catpv(cpp, cpp_cfg); |
79072805 | 3673 | |
1b24ed4b | 3674 | # ifndef VMS |
396482e1 | 3675 | sv_catpvs(sv, "-I"); |
1b24ed4b MS |
3676 | sv_catpv(sv,PRIVLIB_EXP); |
3677 | # endif | |
46fc3d4c | 3678 | |
14953ddc MB |
3679 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3680 | "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n", | |
848ef955 NC |
3681 | scriptname, SvPVX_const (cpp), SvPVX_const (sv), |
3682 | CPPMINUS)); | |
1b24ed4b MS |
3683 | |
3684 | # if defined(MSDOS) || defined(WIN32) || defined(VMS) | |
3685 | quote = "\""; | |
3686 | # else | |
3687 | quote = "'"; | |
3688 | # endif | |
3689 | ||
3690 | # ifdef VMS | |
3691 | cpp_discard_flag = ""; | |
3692 | # else | |
3693 | cpp_discard_flag = "-C"; | |
3694 | # endif | |
3695 | ||
3696 | # ifdef OS2 | |
3697 | perl = os2_execname(aTHX); | |
3698 | # else | |
3699 | perl = PL_origargv[0]; | |
3700 | # endif | |
3701 | ||
3702 | ||
3703 | /* This strips off Perl comments which might interfere with | |
62375a60 NIS |
3704 | the C pre-processor, including #!. #line directives are |
3705 | deliberately stripped to avoid confusion with Perl's version | |
1b24ed4b MS |
3706 | of #line. FWP played some golf with it so it will fit |
3707 | into VMS's 255 character buffer. | |
3708 | */ | |
3709 | if( PL_doextract ) | |
3710 | code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3711 | else | |
3712 | code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3713 | ||
3714 | Perl_sv_setpvf(aTHX_ cmd, "\ | |
3715 | %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s", | |
be2597df MHM |
3716 | perl, quote, code, quote, scriptname, SVfARG(cpp), |
3717 | cpp_discard_flag, SVfARG(sv), CPPMINUS); | |
1b24ed4b | 3718 | |
3280af22 | 3719 | PL_doextract = FALSE; |
0a6c758d | 3720 | |
62375a60 NIS |
3721 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3722 | "PL_preprocess: cmd=\"%s\"\n", | |
848ef955 | 3723 | SvPVX_const(cmd))); |
0a6c758d | 3724 | |
848ef955 | 3725 | PL_rsfp = PerlProc_popen((char *)SvPVX_const(cmd), (char *)"r"); |
46fc3d4c | 3726 | SvREFCNT_dec(cmd); |
3727 | SvREFCNT_dec(cpp); | |
79072805 LW |
3728 | } |
3729 | else if (!*scriptname) { | |
cdd8118e | 3730 | forbid_setid(0, *suidscript); |
3280af22 | 3731 | PL_rsfp = PerlIO_stdin(); |
79072805 | 3732 | } |
96436eeb | 3733 | else { |
3280af22 | 3734 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
1b24ed4b MS |
3735 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3736 | if (PL_rsfp) | |
3737 | /* ensure close-on-exec */ | |
3738 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3739 | # endif | |
96436eeb | 3740 | } |
ae3f3efd | 3741 | #endif /* IAMSUID */ |
3280af22 | 3742 | if (!PL_rsfp) { |
447218f8 | 3743 | /* PSz 16 Sep 03 Keep neat error message */ |
b1681ed3 RGS |
3744 | if (PL_e_script) |
3745 | Perl_croak(aTHX_ "Can't open "BIT_BUCKET": %s\n", Strerror(errno)); | |
3746 | else | |
3747 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", | |
3748 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3749 | } |
fdf5d70d | 3750 | return fdscript; |
79072805 | 3751 | } |
8d063cd8 | 3752 | |
7b89560d JH |
3753 | /* Mention |
3754 | * I_SYSSTATVFS HAS_FSTATVFS | |
3755 | * I_SYSMOUNT | |
c890dc6c | 3756 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3757 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3758 | * here so that metaconfig picks them up. */ | |
3759 | ||
104d25b7 | 3760 | #ifdef IAMSUID |
864dbfa3 | 3761 | STATIC int |
e688b231 | 3762 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 3763 | { |
ae3f3efd PS |
3764 | /* PSz 27 Feb 04 |
3765 | * We used to do this as "plain" user (after swapping UIDs with setreuid); | |
3766 | * but is needed also on machines without setreuid. | |
3767 | * Seems safe enough to run as root. | |
3768 | */ | |
0545a864 JH |
3769 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
3770 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
ae3f3efd PS |
3771 | /* PSz 12 Nov 03 |
3772 | * Need to check noexec also: nosuid might not be set, the average | |
3773 | * sysadmin would say that nosuid is irrelevant once he sets noexec. | |
3774 | */ | |
3775 | int on_noexec = 0; /* the fd is on a noexec fs */ | |
3776 | ||
104d25b7 | 3777 | /* |
ad27e871 | 3778 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 3779 | * fstatvfs() is UNIX98. |
0545a864 | 3780 | * fstatfs() is 4.3 BSD. |
ad27e871 | 3781 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
3782 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
3783 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
3784 | */ |
3785 | ||
6439433f JH |
3786 | #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ |
3787 | ||
3788 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3789 | defined(HAS_FSTATVFS) | |
3790 | # define FD_ON_NOSUID_CHECK_OKAY | |
104d25b7 | 3791 | struct statvfs stfs; |
6439433f | 3792 | |
104d25b7 JH |
3793 | check_okay = fstatvfs(fd, &stfs) == 0; |
3794 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
ae3f3efd PS |
3795 | #ifdef ST_NOEXEC |
3796 | /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented | |
3797 | on platforms where it is present. */ | |
3798 | on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); | |
3799 | #endif | |
6439433f | 3800 | # endif /* fstatvfs */ |
ac27b0f5 | 3801 | |
6439433f JH |
3802 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ |
3803 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3804 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3805 | defined(HAS_FSTATFS) && \ |
3806 | defined(HAS_STRUCT_STATFS) && \ | |
3807 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
3808 | # define FD_ON_NOSUID_CHECK_OKAY | |
e688b231 | 3809 | struct statfs stfs; |
6439433f | 3810 | |
104d25b7 | 3811 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 3812 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
ae3f3efd | 3813 | on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); |
6439433f JH |
3814 | # endif /* fstatfs */ |
3815 | ||
3816 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3817 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3818 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3819 | defined(HAS_FSTAT) && \ |
3820 | defined(HAS_USTAT) && \ | |
3821 | defined(HAS_GETMNT) && \ | |
3822 | defined(HAS_STRUCT_FS_DATA) && \ | |
3823 | defined(NOSTAT_ONE) | |
3824 | # define FD_ON_NOSUID_CHECK_OKAY | |
c623ac67 | 3825 | Stat_t fdst; |
6439433f | 3826 | |
0545a864 | 3827 | if (fstat(fd, &fdst) == 0) { |
6439433f JH |
3828 | struct ustat us; |
3829 | if (ustat(fdst.st_dev, &us) == 0) { | |
3830 | struct fs_data fsd; | |
3831 | /* NOSTAT_ONE here because we're not examining fields which | |
3832 | * vary between that case and STAT_ONE. */ | |
ad27e871 | 3833 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { |
6439433f JH |
3834 | size_t cmplen = sizeof(us.f_fname); |
3835 | if (sizeof(fsd.fd_req.path) < cmplen) | |
3836 | cmplen = sizeof(fsd.fd_req.path); | |
3837 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
3838 | fdst.st_dev == fsd.fd_req.dev) { | |
6e186fbe MHM |
3839 | check_okay = 1; |
3840 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
3841 | on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; | |
6439433f JH |
3842 | } |
3843 | } | |
3844 | } | |
0545a864 | 3845 | } |
6439433f JH |
3846 | # endif /* fstat+ustat+getmnt */ |
3847 | ||
3848 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3849 | defined(HAS_GETMNTENT) && \ | |
3850 | defined(HAS_HASMNTOPT) && \ | |
ae3f3efd PS |
3851 | defined(MNTOPT_NOSUID) && \ |
3852 | defined(MNTOPT_NOEXEC) | |
6439433f JH |
3853 | # define FD_ON_NOSUID_CHECK_OKAY |
3854 | FILE *mtab = fopen("/etc/mtab", "r"); | |
3855 | struct mntent *entry; | |
c623ac67 | 3856 | Stat_t stb, fsb; |
104d25b7 JH |
3857 | |
3858 | if (mtab && (fstat(fd, &stb) == 0)) { | |
6439433f JH |
3859 | while (entry = getmntent(mtab)) { |
3860 | if (stat(entry->mnt_dir, &fsb) == 0 | |
3861 | && fsb.st_dev == stb.st_dev) | |
3862 | { | |
3863 | /* found the filesystem */ | |
3864 | check_okay = 1; | |
3865 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
3866 | on_nosuid = 1; | |
ae3f3efd PS |
3867 | if (hasmntopt(entry, MNTOPT_NOEXEC)) |
3868 | on_noexec = 1; | |
6439433f JH |
3869 | break; |
3870 | } /* A single fs may well fail its stat(). */ | |
3871 | } | |
104d25b7 JH |
3872 | } |
3873 | if (mtab) | |
6439433f JH |
3874 | fclose(mtab); |
3875 | # endif /* getmntent+hasmntopt */ | |
0545a864 | 3876 | |
ac27b0f5 | 3877 | if (!check_okay) |
ae3f3efd PS |
3878 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); |
3879 | if (on_nosuid) | |
3880 | Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); | |
3881 | if (on_noexec) | |
3882 | Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); | |
3883 | return ((!check_okay) || on_nosuid || on_noexec); | |
104d25b7 JH |
3884 | } |
3885 | #endif /* IAMSUID */ | |
3886 | ||
76e3520e | 3887 | STATIC void |
fdf5d70d | 3888 | S_validate_suid(pTHX_ const char *validarg, const char *scriptname, |
cdd8118e | 3889 | int fdscript, int suidscript) |
79072805 | 3890 | { |
27da23d5 | 3891 | dVAR; |
155aba94 | 3892 | #ifdef IAMSUID |
ae3f3efd PS |
3893 | /* int which; */ |
3894 | #endif /* IAMSUID */ | |
96436eeb | 3895 | |
13281fa4 LW |
3896 | /* do we need to emulate setuid on scripts? */ |
3897 | ||
3898 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
3899 | * in the kernel because of a security problem. Merely defining DOSUID | |
3900 | * in perl will not fix that problem, but if you have disabled setuid | |
3901 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
3902 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
3903 | * root version must be called suidperl or sperlN.NNN. If regular perl |
3904 | * discovers that it has opened a setuid script, it calls suidperl with | |
3905 | * the same argv that it had. If suidperl finds that the script it has | |
3906 | * just opened is NOT setuid root, it sets the effective uid back to the | |
3907 | * uid. We don't just make perl setuid root because that loses the | |
3908 | * effective uid we had before invoking perl, if it was different from the | |
3909 | * uid. | |
ae3f3efd PS |
3910 | * PSz 27 Feb 04 |
3911 | * Description/comments above do not match current workings: | |
3912 | * suidperl must be hardlinked to sperlN.NNN (that is what we exec); | |
3913 | * suidperl called with script open and name changed to /dev/fd/N/X; | |
3914 | * suidperl croaks if script is not setuid; | |
3915 | * making perl setuid would be a huge security risk (and yes, that | |
3916 | * would lose any euid we might have had). | |
13281fa4 LW |
3917 | * |
3918 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
3919 | * be defined in suidperl only. suidperl must be setuid root. The | |
3920 | * Configure script will set this up for you if you want it. | |
3921 | */ | |
a687059c | 3922 | |
13281fa4 | 3923 | #ifdef DOSUID |
dd720ed5 | 3924 | const char *s, *s2; |
a0d0e21e | 3925 | |
b28d0864 | 3926 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 3927 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
ae3f3efd | 3928 | if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 3929 | I32 len; |
dd720ed5 | 3930 | const char *linestr; |
42d9b98d | 3931 | const char *s_end; |
13281fa4 | 3932 | |
a687059c | 3933 | #ifdef IAMSUID |
cdd8118e | 3934 | if (fdscript < 0 || suidscript != 1) |
ae3f3efd PS |
3935 | Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ |
3936 | /* PSz 11 Nov 03 | |
3937 | * Since the script is opened by perl, not suidperl, some of these | |
3938 | * checks are superfluous. Leaving them in probably does not lower | |
3939 | * security(?!). | |
3940 | */ | |
3941 | /* PSz 27 Feb 04 | |
3942 | * Do checks even for systems with no HAS_SETREUID. | |
3943 | * We used to swap, then re-swap UIDs with | |
3944 | #ifdef HAS_SETREUID | |
3945 | if (setreuid(PL_euid,PL_uid) < 0 | |
3946 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) | |
3947 | Perl_croak(aTHX_ "Can't swap uid and euid"); | |
3948 | #endif | |
3949 | #ifdef HAS_SETREUID | |
3950 | if (setreuid(PL_uid,PL_euid) < 0 | |
3951 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) | |
3952 | Perl_croak(aTHX_ "Can't reswap uid and euid"); | |
3953 | #endif | |
3954 | */ | |
3955 | ||
a687059c LW |
3956 | /* On this access check to make sure the directories are readable, |
3957 | * there is actually a small window that the user could use to make | |
3958 | * filename point to an accessible directory. So there is a faint | |
3959 | * chance that someone could execute a setuid script down in a | |
3960 | * non-accessible directory. I don't know what to do about that. | |
3961 | * But I don't think it's too important. The manual lies when | |
3962 | * it says access() is useful in setuid programs. | |
ae3f3efd PS |
3963 | * |
3964 | * So, access() is pretty useless... but not harmful... do anyway. | |
a687059c | 3965 | */ |
e57400b1 | 3966 | if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ |
ae3f3efd | 3967 | Perl_croak(aTHX_ "Can't access() script\n"); |
e57400b1 | 3968 | } |
ae3f3efd | 3969 | |
a687059c LW |
3970 | /* If we can swap euid and uid, then we can determine access rights |
3971 | * with a simple stat of the file, and then compare device and | |
3972 | * inode to make sure we did stat() on the same file we opened. | |
3973 | * Then we just have to make sure he or she can execute it. | |
ae3f3efd PS |
3974 | * |
3975 | * PSz 24 Feb 04 | |
3976 | * As the script is opened by perl, not suidperl, we do not need to | |
3977 | * care much about access rights. | |
3978 | * | |
3979 | * The 'script changed' check is needed, or we can get lied to | |
3980 | * about $0 with e.g. | |
3981 | * suidperl /dev/fd/4//bin/x 4<setuidscript | |
3982 | * Without HAS_SETREUID, is it safe to stat() as root? | |
3983 | * | |
3984 | * Are there any operating systems that pass /dev/fd/xxx for setuid | |
3985 | * scripts, as suggested/described in perlsec(1)? Surely they do not | |
3986 | * pass the script name as we do, so the "script changed" test would | |
3987 | * fail for them... but we never get here with | |
3988 | * SETUID_SCRIPTS_ARE_SECURE_NOW defined. | |
3989 | * | |
3990 | * This is one place where we must "lie" about return status: not | |
3991 | * say if the stat() failed. We are doing this as root, and could | |
3992 | * be tricked into reporting existence or not of files that the | |
3993 | * "plain" user cannot even see. | |
a687059c LW |
3994 | */ |
3995 | { | |
c623ac67 | 3996 | Stat_t tmpstatbuf; |
ae3f3efd PS |
3997 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 || |
3998 | tmpstatbuf.st_dev != PL_statbuf.st_dev || | |
b28d0864 | 3999 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
ae3f3efd | 4000 | Perl_croak(aTHX_ "Setuid script changed\n"); |
a687059c | 4001 | } |
ae3f3efd | 4002 | |
a687059c | 4003 | } |
ae3f3efd PS |
4004 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
4005 | Perl_croak(aTHX_ "Real UID cannot exec script\n"); | |
4006 | ||
4007 | /* PSz 27 Feb 04 | |
4008 | * We used to do this check as the "plain" user (after swapping | |
4009 | * UIDs). But the check for nosuid and noexec filesystem is needed, | |
4010 | * and should be done even without HAS_SETREUID. (Maybe those | |
4011 | * operating systems do not have such mount options anyway...) | |
4012 | * Seems safe enough to do as root. | |
4013 | */ | |
4014 | #if !defined(NO_NOSUID_CHECK) | |
4015 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) { | |
4016 | Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n"); | |
4017 | } | |
4018 | #endif | |
a687059c LW |
4019 | #endif /* IAMSUID */ |
4020 | ||
e57400b1 | 4021 | if (!S_ISREG(PL_statbuf.st_mode)) { |
ae3f3efd | 4022 | Perl_croak(aTHX_ "Setuid script not plain file\n"); |
e57400b1 | 4023 | } |
b28d0864 | 4024 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 4025 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c | 4026 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
ae3f3efd | 4027 | /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */ |
57843af0 | 4028 | CopLINE_inc(PL_curcop); |
bd61b366 | 4029 | if (sv_gets(PL_linestr, PL_rsfp, 0) == NULL) |
f8d2da62 | 4030 | Perl_croak(aTHX_ "No #! line"); |
dd720ed5 | 4031 | linestr = SvPV_nolen_const(PL_linestr); |
f8d2da62 RGS |
4032 | /* required even on Sys V */ |
4033 | if (!*linestr || !linestr[1] || strnNE(linestr,"#!",2)) | |
cea2e8a9 | 4034 | Perl_croak(aTHX_ "No #! line"); |
f8d2da62 | 4035 | linestr += 2; |
dd720ed5 | 4036 | s = linestr; |
ae3f3efd PS |
4037 | /* PSz 27 Feb 04 */ |
4038 | /* Sanity check on line length */ | |
42d9b98d NC |
4039 | s_end = s + strlen(s); |
4040 | if (s_end == s || (s_end - s) > 4000) | |
ae3f3efd PS |
4041 | Perl_croak(aTHX_ "Very long #! line"); |
4042 | /* Allow more than a single space after #! */ | |
4043 | while (isSPACE(*s)) s++; | |
4044 | /* Sanity check on buffer end */ | |
4045 | while ((*s) && !isSPACE(*s)) s++; | |
dd720ed5 | 4046 | for (s2 = s; (s2 > linestr && |
3792a11b NC |
4047 | (isDIGIT(s2[-1]) || s2[-1] == '.' || s2[-1] == '_' |
4048 | || s2[-1] == '-')); s2--) ; | |
ae3f3efd | 4049 | /* Sanity check on buffer start */ |
dd720ed5 NC |
4050 | if ( (s2-4 < linestr || strnNE(s2-4,"perl",4)) && |
4051 | (s-9 < linestr || strnNE(s-9,"perl",4)) ) | |
cea2e8a9 | 4052 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 4053 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
4054 | /* |
4055 | * #! arg must be what we saw above. They can invoke it by | |
4056 | * mentioning suidperl explicitly, but they may not add any strange | |
4057 | * arguments beyond what #! says if they do invoke suidperl that way. | |
4058 | */ | |
ae3f3efd PS |
4059 | /* |
4060 | * The way validarg was set up, we rely on the kernel to start | |
4061 | * scripts with argv[1] set to contain all #! line switches (the | |
4062 | * whole line). | |
4063 | */ | |
4064 | /* | |
4065 | * Check that we got all the arguments listed in the #! line (not | |
4066 | * just that there are no extraneous arguments). Might not matter | |
4067 | * much, as switches from #! line seem to be acted upon (also), and | |
4068 | * so may be checked and trapped in perl. But, security checks must | |
4069 | * be done in suidperl and not deferred to perl. Note that suidperl | |
4070 | * does not get around to parsing (and checking) the switches on | |
4071 | * the #! line (but execs perl sooner). | |
4072 | * Allow (require) a trailing newline (which may be of two | |
4073 | * characters on some architectures?) (but no other trailing | |
4074 | * whitespace). | |
4075 | */ | |
13281fa4 LW |
4076 | len = strlen(validarg); |
4077 | if (strEQ(validarg," PHOOEY ") || | |
ae3f3efd | 4078 | strnNE(s,validarg,len) || !isSPACE(s[len]) || |
42d9b98d NC |
4079 | !((s_end - s) == len+1 |
4080 | || ((s_end - s) == len+2 && isSPACE(s[len+1])))) | |
cea2e8a9 | 4081 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
4082 | |
4083 | #ifndef IAMSUID | |
fdf5d70d | 4084 | if (fdscript < 0 && |
ae3f3efd | 4085 | PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
b28d0864 NIS |
4086 | PL_euid == PL_statbuf.st_uid) |
4087 | if (!PL_do_undump) | |
cea2e8a9 | 4088 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
11fb1898 | 4089 | FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); |
a687059c | 4090 | #endif /* IAMSUID */ |
13281fa4 | 4091 | |
fdf5d70d | 4092 | if (fdscript < 0 && |
ae3f3efd PS |
4093 | PL_euid) { /* oops, we're not the setuid root perl */ |
4094 | /* PSz 18 Feb 04 | |
4095 | * When root runs a setuid script, we do not go through the same | |
4096 | * steps of execing sperl and then perl with fd scripts, but | |
4097 | * simply set up UIDs within the same perl invocation; so do | |
4098 | * not have the same checks (on options, whatever) that we have | |
4099 | * for plain users. No problem really: would have to be a script | |
4100 | * that does not actually work for plain users; and if root is | |
4101 | * foolish and can be persuaded to run such an unsafe script, he | |
4102 | * might run also non-setuid ones, and deserves what he gets. | |
4103 | * | |
4104 | * Or, we might drop the PL_euid check above (and rely just on | |
fdf5d70d | 4105 | * fdscript to avoid loops), and do the execs |
ae3f3efd PS |
4106 | * even for root. |
4107 | */ | |
13281fa4 | 4108 | #ifndef IAMSUID |
ae3f3efd PS |
4109 | int which; |
4110 | /* PSz 11 Nov 03 | |
4111 | * Pass fd script to suidperl. | |
4112 | * Exec suidperl, substituting fd script for scriptname. | |
4113 | * Pass script name as "subdir" of fd, which perl will grok; | |
4114 | * in fact will use that to distinguish this from "normal" | |
4115 | * usage, see comments above. | |
4116 | */ | |
4117 | PerlIO_rewind(PL_rsfp); | |
4118 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
4119 | /* PSz 27 Feb 04 Sanity checks on scriptname */ | |
4120 | if ((!scriptname) || (!*scriptname) ) { | |
4121 | Perl_croak(aTHX_ "No setuid script name\n"); | |
4122 | } | |
4123 | if (*scriptname == '-') { | |
4124 | Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); | |
4125 | /* Or we might confuse it with an option when replacing | |
4126 | * name in argument list, below (though we do pointer, not | |
4127 | * string, comparisons). | |
4128 | */ | |
4129 | } | |
4130 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; | |
4131 | if (!PL_origargv[which]) { | |
4132 | Perl_croak(aTHX_ "Can't change argv to have fd script\n"); | |
4133 | } | |
4134 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
4135 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
4136 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
4137 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
4138 | #endif | |
b35112e7 | 4139 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4140 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4141 | (int)PERL_REVISION, (int)PERL_VERSION, |
4142 | (int)PERL_SUBVERSION), PL_origargv); | |
b35112e7 | 4143 | PERL_FPU_POST_EXEC |
ae3f3efd PS |
4144 | #endif /* IAMSUID */ |
4145 | Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); | |
13281fa4 LW |
4146 | } |
4147 | ||
b28d0864 | 4148 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
ae3f3efd PS |
4149 | /* PSz 26 Feb 04 |
4150 | * This seems back to front: we try HAS_SETEGID first; if not available | |
4151 | * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK | |
4152 | * in the sense that we only want to set EGID; but are there any machines | |
4153 | * with either of the latter, but not the former? Same with UID, later. | |
4154 | */ | |
fe14fcc3 | 4155 | #ifdef HAS_SETEGID |
b28d0864 | 4156 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 4157 | #else |
fe14fcc3 | 4158 | #ifdef HAS_SETREGID |
b28d0864 | 4159 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
4160 | #else |
4161 | #ifdef HAS_SETRESGID | |
b28d0864 | 4162 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 4163 | #else |
b28d0864 | 4164 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
4165 | #endif |
4166 | #endif | |
85e6fe83 | 4167 | #endif |
b28d0864 | 4168 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 4169 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 4170 | } |
b28d0864 NIS |
4171 | if (PL_statbuf.st_mode & S_ISUID) { |
4172 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 4173 | #ifdef HAS_SETEUID |
b28d0864 | 4174 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 4175 | #else |
fe14fcc3 | 4176 | #ifdef HAS_SETREUID |
b28d0864 | 4177 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
4178 | #else |
4179 | #ifdef HAS_SETRESUID | |
b28d0864 | 4180 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 4181 | #else |
b28d0864 | 4182 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
4183 | #endif |
4184 | #endif | |
85e6fe83 | 4185 | #endif |
b28d0864 | 4186 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 4187 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 4188 | } |
b28d0864 | 4189 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 4190 | #ifdef HAS_SETEUID |
b28d0864 | 4191 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 4192 | #else |
fe14fcc3 | 4193 | #ifdef HAS_SETREUID |
b28d0864 | 4194 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 4195 | #else |
85e6fe83 | 4196 | #ifdef HAS_SETRESUID |
b28d0864 | 4197 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 4198 | #else |
b28d0864 | 4199 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 4200 | #endif |
a687059c LW |
4201 | #endif |
4202 | #endif | |
b28d0864 | 4203 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 4204 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 4205 | } |
748a9306 | 4206 | init_ids(); |
b28d0864 | 4207 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
ae3f3efd | 4208 | Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ |
13281fa4 LW |
4209 | } |
4210 | #ifdef IAMSUID | |
ae3f3efd | 4211 | else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
cea2e8a9 | 4212 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
cdd8118e | 4213 | else if (fdscript < 0 || suidscript != 1) |
ae3f3efd PS |
4214 | /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
4215 | Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); | |
e57400b1 | 4216 | else { |
ae3f3efd PS |
4217 | /* PSz 16 Sep 03 Keep neat error message */ |
4218 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); | |
e57400b1 | 4219 | } |
96436eeb | 4220 | |
4221 | /* We absolutely must clear out any saved ids here, so we */ | |
4222 | /* exec the real perl, substituting fd script for scriptname. */ | |
4223 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
ae3f3efd PS |
4224 | /* |
4225 | * It might be thought that using setresgid and/or setresuid (changed to | |
4226 | * set the saved IDs) above might obviate the need to exec, and we could | |
4227 | * go on to "do the perl thing". | |
4228 | * | |
4229 | * Is there such a thing as "saved GID", and is that set for setuid (but | |
4230 | * not setgid) execution like suidperl? Without exec, it would not be | |
4231 | * cleared for setuid (but not setgid) scripts (or might need a dummy | |
4232 | * setresgid). | |
4233 | * | |
4234 | * We need suidperl to do the exact same argument checking that perl | |
4235 | * does. Thus it cannot be very small; while it could be significantly | |
4236 | * smaller, it is safer (simpler?) to make it essentially the same | |
4237 | * binary as perl (but they are not identical). - Maybe could defer that | |
4238 | * check to the invoked perl, and suidperl be a tiny wrapper instead; | |
4239 | * but prefer to do thorough checks in suidperl itself. Such deferral | |
4240 | * would make suidperl security rely on perl, a design no-no. | |
4241 | * | |
4242 | * Setuid things should be short and simple, thus easy to understand and | |
4243 | * verify. They should do their "own thing", without influence by | |
4244 | * attackers. It may help if their internal execution flow is fixed, | |
4245 | * regardless of platform: it may be best to exec anyway. | |
4246 | * | |
4247 | * Suidperl should at least be conceptually simple: a wrapper only, | |
4248 | * never to do any real perl. Maybe we should put | |
4249 | * #ifdef IAMSUID | |
4250 | * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); | |
4251 | * #endif | |
4252 | * into the perly bits. | |
4253 | */ | |
b28d0864 NIS |
4254 | PerlIO_rewind(PL_rsfp); |
4255 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
ae3f3efd PS |
4256 | /* PSz 11 Nov 03 |
4257 | * Keep original arguments: suidperl already has fd script. | |
4258 | */ | |
4259 | /* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */ | |
4260 | /* if (!PL_origargv[which]) { */ | |
4261 | /* errno = EPERM; */ | |
4262 | /* Perl_croak(aTHX_ "Permission denied\n"); */ | |
4263 | /* } */ | |
4264 | /* PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", */ | |
4265 | /* PerlIO_fileno(PL_rsfp), PL_origargv[which])); */ | |
96436eeb | 4266 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 4267 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 4268 | #endif |
b35112e7 | 4269 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 4270 | PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
4271 | (int)PERL_REVISION, (int)PERL_VERSION, |
4272 | (int)PERL_SUBVERSION), PL_origargv);/* try again */ | |
b35112e7 | 4273 | PERL_FPU_POST_EXEC |
ae3f3efd | 4274 | Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); |
13281fa4 | 4275 | #endif /* IAMSUID */ |
a687059c | 4276 | #else /* !DOSUID */ |
294a48e9 AL |
4277 | PERL_UNUSED_ARG(fdscript); |
4278 | PERL_UNUSED_ARG(suidscript); | |
3280af22 | 4279 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 4280 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
b28d0864 NIS |
4281 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
4282 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 4283 | || |
b28d0864 | 4284 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 4285 | ) |
b28d0864 | 4286 | if (!PL_do_undump) |
cea2e8a9 | 4287 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
4288 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
4289 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
4290 | /* not set-id, must be wrapped */ | |
a687059c | 4291 | } |
13281fa4 | 4292 | #endif /* DOSUID */ |
294a48e9 AL |
4293 | PERL_UNUSED_ARG(validarg); |
4294 | PERL_UNUSED_ARG(scriptname); | |
79072805 | 4295 | } |
13281fa4 | 4296 | |
76e3520e | 4297 | STATIC void |
faef540c | 4298 | S_find_beginning(pTHX) |
79072805 | 4299 | { |
97aff369 | 4300 | dVAR; |
dd374669 AL |
4301 | register char *s; |
4302 | register const char *s2; | |
e55ac0fa HS |
4303 | #ifdef MACOS_TRADITIONAL |
4304 | int maclines = 0; | |
4305 | #endif | |
33b78306 LW |
4306 | |
4307 | /* skip forward in input to the real script? */ | |
4308 | ||
bf4acbe4 | 4309 | #ifdef MACOS_TRADITIONAL |
084592ab | 4310 | /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ |
ac27b0f5 | 4311 | |
bf4acbe4 | 4312 | while (PL_doextract || gMacPerl_AlwaysExtract) { |
bd61b366 | 4313 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == NULL) { |
bf4acbe4 GS |
4314 | if (!gMacPerl_AlwaysExtract) |
4315 | Perl_croak(aTHX_ "No Perl script found in input\n"); | |
e55ac0fa | 4316 | |
bf4acbe4 GS |
4317 | if (PL_doextract) /* require explicit override ? */ |
4318 | if (!OverrideExtract(PL_origfilename)) | |
4319 | Perl_croak(aTHX_ "User aborted script\n"); | |
4320 | else | |
4321 | PL_doextract = FALSE; | |
e55ac0fa | 4322 | |
bf4acbe4 GS |
4323 | /* Pater peccavi, file does not have #! */ |
4324 | PerlIO_rewind(PL_rsfp); | |
e55ac0fa | 4325 | |
bf4acbe4 GS |
4326 | break; |
4327 | } | |
4328 | #else | |
3280af22 | 4329 | while (PL_doextract) { |
bd61b366 | 4330 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == NULL) |
cea2e8a9 | 4331 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
bf4acbe4 | 4332 | #endif |
4f0c37ba IZ |
4333 | s2 = s; |
4334 | if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { | |
3280af22 NIS |
4335 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
4336 | PL_doextract = FALSE; | |
6e72f9df | 4337 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
4338 | s2 = s; | |
4339 | while (*s == ' ' || *s == '\t') s++; | |
4340 | if (*s++ == '-') { | |
3792a11b NC |
4341 | while (isDIGIT(s2[-1]) || s2[-1] == '-' || s2[-1] == '.' |
4342 | || s2[-1] == '_') s2--; | |
6e72f9df | 4343 | if (strnEQ(s2-4,"perl",4)) |
97bd5664 | 4344 | while ((s = moreswitches(s))) |
155aba94 | 4345 | ; |
33b78306 | 4346 | } |
95e8664e | 4347 | #ifdef MACOS_TRADITIONAL |
e55ac0fa HS |
4348 | /* We are always searching for the #!perl line in MacPerl, |
4349 | * so if we find it, still keep the line count correct | |
4350 | * by counting lines we already skipped over | |
4351 | */ | |
4352 | for (; maclines > 0 ; maclines--) | |
4353 | PerlIO_ungetc(PL_rsfp, '\n'); | |
4354 | ||
95e8664e | 4355 | break; |
e55ac0fa HS |
4356 | |
4357 | /* gMacPerl_AlwaysExtract is false in MPW tool */ | |
4358 | } else if (gMacPerl_AlwaysExtract) { | |
4359 | ++maclines; | |
95e8664e | 4360 | #endif |
83025b21 LW |
4361 | } |
4362 | } | |
4363 | } | |
4364 | ||
afe37c7d | 4365 | |
76e3520e | 4366 | STATIC void |
cea2e8a9 | 4367 | S_init_ids(pTHX) |
352d5a3a | 4368 | { |
97aff369 | 4369 | dVAR; |
d8eceb89 JH |
4370 | PL_uid = PerlProc_getuid(); |
4371 | PL_euid = PerlProc_geteuid(); | |
4372 | PL_gid = PerlProc_getgid(); | |
4373 | PL_egid = PerlProc_getegid(); | |
748a9306 | 4374 | #ifdef VMS |
b28d0864 NIS |
4375 | PL_uid |= PL_gid << 16; |
4376 | PL_euid |= PL_egid << 16; | |
748a9306 | 4377 | #endif |
22f7c9c9 JH |
4378 | /* Should not happen: */ |
4379 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 4380 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
ae3f3efd PS |
4381 | /* BUG */ |
4382 | /* PSz 27 Feb 04 | |
4383 | * Should go by suidscript, not uid!=euid: why disallow | |
4384 | * system("ls") in scripts run from setuid things? | |
4385 | * Or, is this run before we check arguments and set suidscript? | |
4386 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
4387 | * (We never have suidscript, can we be sure to have fdscript?) | |
4388 | * Or must then go by UID checks? See comments in forbid_setid also. | |
4389 | */ | |
748a9306 | 4390 | } |
79072805 | 4391 | |
a0643315 JH |
4392 | /* This is used very early in the lifetime of the program, |
4393 | * before even the options are parsed, so PL_tainting has | |
b0891165 | 4394 | * not been initialized properly. */ |
af419de7 | 4395 | bool |
8f42b153 | 4396 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
22f7c9c9 | 4397 | { |
c3446a78 JH |
4398 | #ifndef PERL_IMPLICIT_SYS |
4399 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
4400 | * before we have an interpreter-- and the whole point of this | |
4401 | * function is to be called at such an early stage. If you are on | |
4402 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
4403 | * "tainted because running with altered effective ids', you'll | |
4404 | * have to add your own checks somewhere in here. The two most | |
4405 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
4406 | * of which has much of concept of 'uids'. */ | |
af419de7 | 4407 | int uid = PerlProc_getuid(); |
22f7c9c9 | 4408 | int euid = PerlProc_geteuid(); |
af419de7 | 4409 | int gid = PerlProc_getgid(); |
22f7c9c9 | 4410 | int egid = PerlProc_getegid(); |
6867be6d | 4411 | (void)envp; |
22f7c9c9 JH |
4412 | |
4413 | #ifdef VMS | |
af419de7 | 4414 | uid |= gid << 16; |
22f7c9c9 JH |
4415 | euid |= egid << 16; |
4416 | #endif | |
4417 | if (uid && (euid != uid || egid != gid)) | |
4418 | return 1; | |
c3446a78 | 4419 | #endif /* !PERL_IMPLICIT_SYS */ |
af419de7 JH |
4420 | /* This is a really primitive check; environment gets ignored only |
4421 | * if -T are the first chars together; otherwise one gets | |
4422 | * "Too late" message. */ | |
22f7c9c9 JH |
4423 | if ( argc > 1 && argv[1][0] == '-' |
4424 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
4425 | return 1; | |
4426 | return 0; | |
4427 | } | |
22f7c9c9 | 4428 | |
d0bafe7e NC |
4429 | /* Passing the flag as a single char rather than a string is a slight space |
4430 | optimisation. The only message that isn't /^-.$/ is | |
4431 | "program input from stdin", which is substituted in place of '\0', which | |
4432 | could never be a command line flag. */ | |
76e3520e | 4433 | STATIC void |
cdd8118e | 4434 | S_forbid_setid(pTHX_ const char flag, const int suidscript) |
bbce6d69 | 4435 | { |
97aff369 | 4436 | dVAR; |
d0bafe7e NC |
4437 | char string[3] = "-x"; |
4438 | const char *message = "program input from stdin"; | |
4439 | ||
4440 | if (flag) { | |
4441 | string[1] = flag; | |
4442 | message = string; | |
4443 | } | |
4444 | ||
ae3f3efd | 4445 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 4446 | if (PL_euid != PL_uid) |
d0bafe7e | 4447 | Perl_croak(aTHX_ "No %s allowed while running setuid", message); |
3280af22 | 4448 | if (PL_egid != PL_gid) |
d0bafe7e | 4449 | Perl_croak(aTHX_ "No %s allowed while running setgid", message); |
ae3f3efd PS |
4450 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
4451 | /* PSz 29 Feb 04 | |
4452 | * Checks for UID/GID above "wrong": why disallow | |
4453 | * perl -e 'print "Hello\n"' | |
4454 | * from within setuid things?? Simply drop them: replaced by | |
4455 | * fdscript/suidscript and #ifdef IAMSUID checks below. | |
4456 | * | |
4457 | * This may be too late for command-line switches. Will catch those on | |
4458 | * the #! line, after finding the script name and setting up | |
4459 | * fdscript/suidscript. Note that suidperl does not get around to | |
4460 | * parsing (and checking) the switches on the #! line, but checks that | |
4461 | * the two sets are identical. | |
4462 | * | |
4463 | * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or | |
4464 | * instead, or would that be "too late"? (We never have suidscript, can | |
4465 | * we be sure to have fdscript?) | |
4466 | * | |
4467 | * Catch things with suidscript (in descendant of suidperl), even with | |
4468 | * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, | |
4469 | * below; but I am paranoid. | |
4470 | * | |
4471 | * Also see comments about root running a setuid script, elsewhere. | |
4472 | */ | |
cdd8118e | 4473 | if (suidscript >= 0) |
d0bafe7e | 4474 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", message); |
ae3f3efd PS |
4475 | #ifdef IAMSUID |
4476 | /* PSz 11 Nov 03 Catch it in suidperl, always! */ | |
d0bafe7e | 4477 | Perl_croak(aTHX_ "No %s allowed in suidperl", message); |
ae3f3efd | 4478 | #endif /* IAMSUID */ |
bbce6d69 | 4479 | } |
4480 | ||
1ee4443e IZ |
4481 | void |
4482 | Perl_init_debugger(pTHX) | |
748a9306 | 4483 | { |
97aff369 | 4484 | dVAR; |
c4420975 | 4485 | HV * const ostash = PL_curstash; |
1ee4443e | 4486 | |
3280af22 | 4487 | PL_curstash = PL_debstash; |
5c1737d1 NC |
4488 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpvs("DB::args", GV_ADDMULTI, |
4489 | SVt_PVAV)))); | |
3280af22 | 4490 | AvREAL_off(PL_dbargs); |
5c1737d1 NC |
4491 | PL_DBgv = gv_fetchpvs("DB::DB", GV_ADDMULTI, SVt_PVGV); |
4492 | PL_DBline = gv_fetchpvs("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
4493 | PL_DBsub = gv_HVadd(gv_fetchpvs("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
4494 | PL_DBsingle = GvSV((gv_fetchpvs("DB::single", GV_ADDMULTI, SVt_PV))); | |
ac27b0f5 | 4495 | sv_setiv(PL_DBsingle, 0); |
5c1737d1 | 4496 | PL_DBtrace = GvSV((gv_fetchpvs("DB::trace", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4497 | sv_setiv(PL_DBtrace, 0); |
5c1737d1 | 4498 | PL_DBsignal = GvSV((gv_fetchpvs("DB::signal", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 4499 | sv_setiv(PL_DBsignal, 0); |
5c1737d1 | 4500 | PL_DBassertion = GvSV((gv_fetchpvs("DB::assertion", GV_ADDMULTI, SVt_PV))); |
06492da6 | 4501 | sv_setiv(PL_DBassertion, 0); |
1ee4443e | 4502 | PL_curstash = ostash; |
352d5a3a LW |
4503 | } |
4504 | ||
2ce36478 SM |
4505 | #ifndef STRESS_REALLOC |
4506 | #define REASONABLE(size) (size) | |
4507 | #else | |
4508 | #define REASONABLE(size) (1) /* unreasonable */ | |
4509 | #endif | |
4510 | ||
11343788 | 4511 | void |
cea2e8a9 | 4512 | Perl_init_stacks(pTHX) |
79072805 | 4513 | { |
97aff369 | 4514 | dVAR; |
e336de0d | 4515 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 4516 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 4517 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
4518 | PL_curstackinfo->si_type = PERLSI_MAIN; |
4519 | PL_curstack = PL_curstackinfo->si_stack; | |
4520 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 4521 | |
3280af22 NIS |
4522 | PL_stack_base = AvARRAY(PL_curstack); |
4523 | PL_stack_sp = PL_stack_base; | |
4524 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 4525 | |
a02a5408 | 4526 | Newx(PL_tmps_stack,REASONABLE(128),SV*); |
3280af22 NIS |
4527 | PL_tmps_floor = -1; |
4528 | PL_tmps_ix = -1; | |
4529 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 4530 | |
a02a5408 | 4531 | Newx(PL_markstack,REASONABLE(32),I32); |
3280af22 NIS |
4532 | PL_markstack_ptr = PL_markstack; |
4533 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 4534 | |
ce2f7c3b | 4535 | SET_MARK_OFFSET; |
e336de0d | 4536 | |
a02a5408 | 4537 | Newx(PL_scopestack,REASONABLE(32),I32); |
3280af22 NIS |
4538 | PL_scopestack_ix = 0; |
4539 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 4540 | |
a02a5408 | 4541 | Newx(PL_savestack,REASONABLE(128),ANY); |
3280af22 NIS |
4542 | PL_savestack_ix = 0; |
4543 | PL_savestack_max = REASONABLE(128); | |
378cc40b | 4544 | } |
33b78306 | 4545 | |
2ce36478 SM |
4546 | #undef REASONABLE |
4547 | ||
76e3520e | 4548 | STATIC void |
cea2e8a9 | 4549 | S_nuke_stacks(pTHX) |
6e72f9df | 4550 | { |
97aff369 | 4551 | dVAR; |
3280af22 NIS |
4552 | while (PL_curstackinfo->si_next) |
4553 | PL_curstackinfo = PL_curstackinfo->si_next; | |
4554 | while (PL_curstackinfo) { | |
4555 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 4556 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
4557 | Safefree(PL_curstackinfo->si_cxstack); |
4558 | Safefree(PL_curstackinfo); | |
4559 | PL_curstackinfo = p; | |
e336de0d | 4560 | } |
3280af22 NIS |
4561 | Safefree(PL_tmps_stack); |
4562 | Safefree(PL_markstack); | |
4563 | Safefree(PL_scopestack); | |
4564 | Safefree(PL_savestack); | |
378cc40b | 4565 | } |
33b78306 | 4566 | |
76e3520e | 4567 | STATIC void |
cea2e8a9 | 4568 | S_init_lexer(pTHX) |
8990e307 | 4569 | { |
97aff369 | 4570 | dVAR; |
06039172 | 4571 | PerlIO *tmpfp; |
3280af22 | 4572 | tmpfp = PL_rsfp; |
4608196e | 4573 | PL_rsfp = NULL; |
3280af22 NIS |
4574 | lex_start(PL_linestr); |
4575 | PL_rsfp = tmpfp; | |
396482e1 | 4576 | PL_subname = newSVpvs("main"); |
8990e307 LW |
4577 | } |
4578 | ||
76e3520e | 4579 | STATIC void |
cea2e8a9 | 4580 | S_init_predump_symbols(pTHX) |
45d8adaa | 4581 | { |
97aff369 | 4582 | dVAR; |
93a17b20 | 4583 | GV *tmpgv; |
af8c498a | 4584 | IO *io; |
79072805 | 4585 | |
864dbfa3 | 4586 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
fafc274c | 4587 | PL_stdingv = gv_fetchpvs("STDIN", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3280af22 | 4588 | GvMULTI_on(PL_stdingv); |
af8c498a | 4589 | io = GvIOp(PL_stdingv); |
a04651f4 | 4590 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 4591 | IoIFP(io) = PerlIO_stdin(); |
fafc274c | 4592 | tmpgv = gv_fetchpvs("stdin", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4593 | GvMULTI_on(tmpgv); |
b37c2d43 | 4594 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4595 | |
fafc274c | 4596 | tmpgv = gv_fetchpvs("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
a5f75d66 | 4597 | GvMULTI_on(tmpgv); |
af8c498a | 4598 | io = GvIOp(tmpgv); |
a04651f4 | 4599 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4600 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 4601 | setdefout(tmpgv); |
fafc274c | 4602 | tmpgv = gv_fetchpvs("stdout", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4603 | GvMULTI_on(tmpgv); |
b37c2d43 | 4604 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4605 | |
fafc274c | 4606 | PL_stderrgv = gv_fetchpvs("STDERR", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
bf49b057 GS |
4607 | GvMULTI_on(PL_stderrgv); |
4608 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 4609 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 4610 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
fafc274c | 4611 | tmpgv = gv_fetchpvs("stderr", GV_ADD|GV_NOTQUAL, SVt_PV); |
a5f75d66 | 4612 | GvMULTI_on(tmpgv); |
b37c2d43 | 4613 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc_simple(io); |
79072805 | 4614 | |
561b68a9 | 4615 | PL_statname = newSV(0); /* last filename we did stat on */ |
ab821d7f | 4616 | |
43c5f42d | 4617 | Safefree(PL_osname); |
bf4acbe4 | 4618 | PL_osname = savepv(OSNAME); |
79072805 | 4619 | } |
33b78306 | 4620 | |
a11ec5a9 | 4621 | void |
8f42b153 | 4622 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) |
33b78306 | 4623 | { |
97aff369 | 4624 | dVAR; |
79072805 | 4625 | argc--,argv++; /* skip name of script */ |
3280af22 | 4626 | if (PL_doswitches) { |
79072805 | 4627 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
aec46f14 | 4628 | char *s; |
79072805 LW |
4629 | if (!argv[0][1]) |
4630 | break; | |
379d538a | 4631 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
4632 | argc--,argv++; |
4633 | break; | |
4634 | } | |
155aba94 | 4635 | if ((s = strchr(argv[0], '='))) { |
b3d904f3 NC |
4636 | const char *const start_name = argv[0] + 1; |
4637 | sv_setpv(GvSV(gv_fetchpvn_flags(start_name, s - start_name, | |
4638 | TRUE, SVt_PV)), s + 1); | |
79072805 LW |
4639 | } |
4640 | else | |
71315bf2 | 4641 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1, GV_ADD, SVt_PV)),1); |
fe14fcc3 | 4642 | } |
79072805 | 4643 | } |
fafc274c | 4644 | if ((PL_argvgv = gv_fetchpvs("ARGV", GV_ADD|GV_NOTQUAL, SVt_PVAV))) { |
a11ec5a9 RGS |
4645 | GvMULTI_on(PL_argvgv); |
4646 | (void)gv_AVadd(PL_argvgv); | |
4647 | av_clear(GvAVn(PL_argvgv)); | |
4648 | for (; argc > 0; argc--,argv++) { | |
aec46f14 | 4649 | SV * const sv = newSVpv(argv[0],0); |
a11ec5a9 | 4650 | av_push(GvAVn(PL_argvgv),sv); |
ce81ff12 JH |
4651 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4652 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4653 | SvUTF8_on(sv); | |
4654 | } | |
a05d7ebb JH |
4655 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ |
4656 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4657 | } |
4658 | } | |
4659 | } | |
4660 | ||
4661 | STATIC void | |
4662 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) | |
4663 | { | |
27da23d5 | 4664 | dVAR; |
a11ec5a9 | 4665 | GV* tmpgv; |
a11ec5a9 | 4666 | |
b9f83d2f | 4667 | PL_toptarget = newSV_type(SVt_PVFM); |
3280af22 | 4668 | sv_setpvn(PL_toptarget, "", 0); |
b9f83d2f | 4669 | PL_bodytarget = newSV_type(SVt_PVFM); |
3280af22 NIS |
4670 | sv_setpvn(PL_bodytarget, "", 0); |
4671 | PL_formtarget = PL_bodytarget; | |
79072805 | 4672 | |
bbce6d69 | 4673 | TAINT; |
a11ec5a9 RGS |
4674 | |
4675 | init_argv_symbols(argc,argv); | |
4676 | ||
fafc274c | 4677 | if ((tmpgv = gv_fetchpvs("0", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
bf4acbe4 GS |
4678 | #ifdef MACOS_TRADITIONAL |
4679 | /* $0 is not majick on a Mac */ | |
4680 | sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); | |
4681 | #else | |
3280af22 | 4682 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 | 4683 | magicname("0", "0", 1); |
bf4acbe4 | 4684 | #endif |
79072805 | 4685 | } |
fafc274c | 4686 | if ((PL_envgv = gv_fetchpvs("ENV", GV_ADD|GV_NOTQUAL, SVt_PVHV))) { |
79072805 | 4687 | HV *hv; |
e17132c1 | 4688 | bool env_is_not_environ; |
3280af22 NIS |
4689 | GvMULTI_on(PL_envgv); |
4690 | hv = GvHVn(PL_envgv); | |
a0714e2c | 4691 | hv_magic(hv, NULL, PERL_MAGIC_env); |
2f42fcb0 | 4692 | #ifndef PERL_MICRO |
fa6a1c44 | 4693 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4694 | /* Note that if the supplied env parameter is actually a copy |
4695 | of the global environ then it may now point to free'd memory | |
4696 | if the environment has been modified since. To avoid this | |
4697 | problem we treat env==NULL as meaning 'use the default' | |
4698 | */ | |
4699 | if (!env) | |
4700 | env = environ; | |
e17132c1 JD |
4701 | env_is_not_environ = env != environ; |
4702 | if (env_is_not_environ | |
4efc5df6 GS |
4703 | # ifdef USE_ITHREADS |
4704 | && PL_curinterp == aTHX | |
4705 | # endif | |
4706 | ) | |
4707 | { | |
bd61b366 | 4708 | environ[0] = NULL; |
4efc5df6 | 4709 | } |
9b4eeda5 | 4710 | if (env) { |
27da23d5 JH |
4711 | char *s; |
4712 | SV *sv; | |
764df951 | 4713 | for (; *env; env++) { |
9b4eeda5 | 4714 | if (!(s = strchr(*env,'=')) || s == *env) |
79072805 | 4715 | continue; |
7da0e383 | 4716 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4717 | *s = '\0'; |
137443ea | 4718 | (void)strupr(*env); |
61968511 | 4719 | *s = '='; |
137443ea | 4720 | #endif |
61968511 | 4721 | sv = newSVpv(s+1, 0); |
79072805 | 4722 | (void)hv_store(hv, *env, s - *env, sv, 0); |
e17132c1 | 4723 | if (env_is_not_environ) |
61968511 | 4724 | mg_set(sv); |
764df951 | 4725 | } |
9b4eeda5 | 4726 | } |
103a7189 | 4727 | #endif /* USE_ENVIRON_ARRAY */ |
2f42fcb0 | 4728 | #endif /* !PERL_MICRO */ |
79072805 | 4729 | } |
bbce6d69 | 4730 | TAINT_NOT; |
fafc274c | 4731 | if ((tmpgv = gv_fetchpvs("$", GV_ADD|GV_NOTQUAL, SVt_PV))) { |
306196c3 | 4732 | SvREADONLY_off(GvSV(tmpgv)); |
7766f137 | 4733 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4734 | SvREADONLY_on(GvSV(tmpgv)); |
4735 | } | |
4d76a344 RGS |
4736 | #ifdef THREADS_HAVE_PIDS |
4737 | PL_ppid = (IV)getppid(); | |
4738 | #endif | |
2710853f MJD |
4739 | |
4740 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4741 | if (PL_minus_a) { | |
4742 | (void) get_av("main::F", TRUE | GV_ADDMULTI); | |
4743 | } | |
33b78306 | 4744 | } |
34de22dd | 4745 | |
76e3520e | 4746 | STATIC void |
cea2e8a9 | 4747 | S_init_perllib(pTHX) |
34de22dd | 4748 | { |
97aff369 | 4749 | dVAR; |
85e6fe83 | 4750 | char *s; |
3280af22 | 4751 | if (!PL_tainting) { |
552a7a9b | 4752 | #ifndef VMS |
76e3520e | 4753 | s = PerlEnv_getenv("PERL5LIB"); |
88f5bc07 AB |
4754 | /* |
4755 | * It isn't possible to delete an environment variable with | |
42a3dd3a RGS |
4756 | * PERL_USE_SAFE_PUTENV set unless unsetenv() is also available, so in that |
4757 | * case we treat PERL5LIB as undefined if it has a zero-length value. | |
88f5bc07 AB |
4758 | */ |
4759 | #if defined(PERL_USE_SAFE_PUTENV) && ! defined(HAS_UNSETENV) | |
4760 | if (s && *s != '\0') | |
4761 | #else | |
85e6fe83 | 4762 | if (s) |
88f5bc07 | 4763 | #endif |
88fe16b2 | 4764 | incpush(s, TRUE, TRUE, TRUE, FALSE); |
85e6fe83 | 4765 | else |
88fe16b2 | 4766 | incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE, FALSE); |
552a7a9b | 4767 | #else /* VMS */ |
4768 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4769 | * "natural" VMS idiom for a Unix path string. We allow each | |
4770 | * element to be a set of |-separated directories for compatibility. | |
4771 | */ | |
4772 | char buf[256]; | |
4773 | int idx = 0; | |
4774 | if (my_trnlnm("PERL5LIB",buf,0)) | |
88fe16b2 | 4775 | do { incpush(buf,TRUE,TRUE,TRUE,FALSE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 4776 | else |
88fe16b2 | 4777 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE,FALSE); |
552a7a9b | 4778 | #endif /* VMS */ |
85e6fe83 | 4779 | } |
34de22dd | 4780 | |
c90c0ff4 | 4781 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
65f19062 | 4782 | ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB |
df5cef82 | 4783 | */ |
4633a7c4 | 4784 | #ifdef APPLLIB_EXP |
88fe16b2 | 4785 | incpush(APPLLIB_EXP, TRUE, TRUE, TRUE, TRUE); |
16d20bd9 | 4786 | #endif |
4633a7c4 | 4787 | |
fed7345c | 4788 | #ifdef ARCHLIB_EXP |
88fe16b2 | 4789 | incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
a0d0e21e | 4790 | #endif |
bf4acbe4 GS |
4791 | #ifdef MACOS_TRADITIONAL |
4792 | { | |
c623ac67 | 4793 | Stat_t tmpstatbuf; |
561b68a9 | 4794 | SV * privdir = newSV(0); |
bf4acbe4 GS |
4795 | char * macperl = PerlEnv_getenv("MACPERL"); |
4796 | ||
4797 | if (!macperl) | |
4798 | macperl = ""; | |
4799 | ||
4800 | Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); | |
4801 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4802 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
bf4acbe4 GS |
4803 | Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); |
4804 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
88fe16b2 | 4805 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE, FALSE); |
ac27b0f5 | 4806 | |
bf4acbe4 GS |
4807 | SvREFCNT_dec(privdir); |
4808 | } | |
4809 | if (!PL_tainting) | |
88fe16b2 | 4810 | incpush(":", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4811 | #else |
fed7345c | 4812 | #ifndef PRIVLIB_EXP |
65f19062 | 4813 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd | 4814 | #endif |
ac27b0f5 | 4815 | #if defined(WIN32) |
88fe16b2 | 4816 | incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE, TRUE); |
00dc2f4f | 4817 | #else |
88fe16b2 | 4818 | incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
00dc2f4f | 4819 | #endif |
4633a7c4 | 4820 | |
65f19062 | 4821 | #ifdef SITEARCH_EXP |
3b290362 GS |
4822 | /* sitearch is always relative to sitelib on Windows for |
4823 | * DLL-based path intuition to work correctly */ | |
4824 | # if !defined(WIN32) | |
88fe16b2 | 4825 | incpush(SITEARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4826 | # endif |
4827 | #endif | |
4828 | ||
4633a7c4 | 4829 | #ifdef SITELIB_EXP |
65f19062 | 4830 | # if defined(WIN32) |
574c798a | 4831 | /* this picks up sitearch as well */ |
88fe16b2 | 4832 | incpush(SITELIB_EXP, TRUE, FALSE, TRUE, TRUE); |
65f19062 | 4833 | # else |
88fe16b2 | 4834 | incpush(SITELIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 GS |
4835 | # endif |
4836 | #endif | |
189d1e8d | 4837 | |
c95d0e17 GA |
4838 | #if defined(SITELIB_STEM) && defined(PERL_INC_VERSION_LIST) |
4839 | /* Search for version-specific dirs below here */ | |
88fe16b2 | 4840 | incpush(SITELIB_STEM, FALSE, TRUE, TRUE, TRUE); |
81c6dfba | 4841 | #endif |
65f19062 GS |
4842 | |
4843 | #ifdef PERL_VENDORARCH_EXP | |
4ea817c6 | 4844 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4845 | * DLL-based path intuition to work correctly */ |
4846 | # if !defined(WIN32) | |
88fe16b2 | 4847 | incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4848 | # endif |
4b03c463 | 4849 | #endif |
65f19062 GS |
4850 | |
4851 | #ifdef PERL_VENDORLIB_EXP | |
4852 | # if defined(WIN32) | |
88fe16b2 | 4853 | incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE, TRUE); /* this picks up vendorarch as well */ |
65f19062 | 4854 | # else |
88fe16b2 | 4855 | incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE, TRUE); |
65f19062 | 4856 | # endif |
a3635516 | 4857 | #endif |
65f19062 GS |
4858 | |
4859 | #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */ | |
88fe16b2 | 4860 | incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE, TRUE); |
00dc2f4f | 4861 | #endif |
65f19062 | 4862 | |
3b777bb4 | 4863 | #ifdef PERL_OTHERLIBDIRS |
88fe16b2 | 4864 | incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE, TRUE); |
3b777bb4 GS |
4865 | #endif |
4866 | ||
3280af22 | 4867 | if (!PL_tainting) |
88fe16b2 | 4868 | incpush(".", FALSE, FALSE, TRUE, FALSE); |
bf4acbe4 | 4869 | #endif /* MACOS_TRADITIONAL */ |
774d564b | 4870 | } |
4871 | ||
a0fd4948 | 4872 | #if defined(DOSISH) || defined(EPOC) || defined(__SYMBIAN32__) |
774d564b | 4873 | # define PERLLIB_SEP ';' |
4874 | #else | |
4875 | # if defined(VMS) | |
4876 | # define PERLLIB_SEP '|' | |
4877 | # else | |
bf4acbe4 GS |
4878 | # if defined(MACOS_TRADITIONAL) |
4879 | # define PERLLIB_SEP ',' | |
4880 | # else | |
4881 | # define PERLLIB_SEP ':' | |
4882 | # endif | |
774d564b | 4883 | # endif |
4884 | #endif | |
4885 | #ifndef PERLLIB_MANGLE | |
4886 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4887 | #endif |
774d564b | 4888 | |
ad17a1ae NC |
4889 | /* Push a directory onto @INC if it exists. |
4890 | Generate a new SV if we do this, to save needing to copy the SV we push | |
4891 | onto @INC */ | |
4892 | STATIC SV * | |
4893 | S_incpush_if_exists(pTHX_ SV *dir) | |
4894 | { | |
97aff369 | 4895 | dVAR; |
ad17a1ae | 4896 | Stat_t tmpstatbuf; |
848ef955 | 4897 | if (PerlLIO_stat(SvPVX_const(dir), &tmpstatbuf) >= 0 && |
ad17a1ae NC |
4898 | S_ISDIR(tmpstatbuf.st_mode)) { |
4899 | av_push(GvAVn(PL_incgv), dir); | |
561b68a9 | 4900 | dir = newSV(0); |
ad17a1ae NC |
4901 | } |
4902 | return dir; | |
4903 | } | |
4904 | ||
76e3520e | 4905 | STATIC void |
dd374669 AL |
4906 | S_incpush(pTHX_ const char *dir, bool addsubdirs, bool addoldvers, bool usesep, |
4907 | bool canrelocate) | |
774d564b | 4908 | { |
97aff369 | 4909 | dVAR; |
a0714e2c | 4910 | SV *subdir = NULL; |
dd374669 | 4911 | const char *p = dir; |
774d564b | 4912 | |
3b290362 | 4913 | if (!p || !*p) |
774d564b | 4914 | return; |
4915 | ||
9c8a64f0 | 4916 | if (addsubdirs || addoldvers) { |
561b68a9 | 4917 | subdir = newSV(0); |
774d564b | 4918 | } |
4919 | ||
4920 | /* Break at all separators */ | |
4921 | while (p && *p) { | |
561b68a9 | 4922 | SV *libdir = newSV(0); |
e1ec3a88 | 4923 | const char *s; |
774d564b | 4924 | |
4925 | /* skip any consecutive separators */ | |
574c798a SR |
4926 | if (usesep) { |
4927 | while ( *p == PERLLIB_SEP ) { | |
4928 | /* Uncomment the next line for PATH semantics */ | |
396482e1 | 4929 | /* av_push(GvAVn(PL_incgv), newSVpvs(".")); */ |
574c798a SR |
4930 | p++; |
4931 | } | |
774d564b | 4932 | } |
4933 | ||
bd61b366 | 4934 | if ( usesep && (s = strchr(p, PERLLIB_SEP)) != NULL ) { |
774d564b | 4935 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
4936 | (STRLEN)(s - p)); | |
4937 | p = s + 1; | |
4938 | } | |
4939 | else { | |
4940 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
bd61b366 | 4941 | p = NULL; /* break out */ |
774d564b | 4942 | } |
bf4acbe4 | 4943 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
4944 | if (!strchr(SvPVX(libdir), ':')) { |
4945 | char buf[256]; | |
4946 | ||
4947 | sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); | |
4948 | } | |
bf4acbe4 | 4949 | if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') |
396482e1 | 4950 | sv_catpvs(libdir, ":"); |
bf4acbe4 | 4951 | #endif |
774d564b | 4952 | |
dd374669 AL |
4953 | /* Do the if() outside the #ifdef to avoid warnings about an unused |
4954 | parameter. */ | |
4955 | if (canrelocate) { | |
88fe16b2 NC |
4956 | #ifdef PERL_RELOCATABLE_INC |
4957 | /* | |
4958 | * Relocatable include entries are marked with a leading .../ | |
4959 | * | |
4960 | * The algorithm is | |
4961 | * 0: Remove that leading ".../" | |
4962 | * 1: Remove trailing executable name (anything after the last '/') | |
4963 | * from the perl path to give a perl prefix | |
4964 | * Then | |
4965 | * While the @INC element starts "../" and the prefix ends with a real | |
4966 | * directory (ie not . or ..) chop that real directory off the prefix | |
4967 | * and the leading "../" from the @INC element. ie a logical "../" | |
4968 | * cleanup | |
4969 | * Finally concatenate the prefix and the remainder of the @INC element | |
4970 | * The intent is that /usr/local/bin/perl and .../../lib/perl5 | |
4971 | * generates /usr/local/lib/perl5 | |
4972 | */ | |
890ce7af | 4973 | const char *libpath = SvPVX(libdir); |
88fe16b2 NC |
4974 | STRLEN libpath_len = SvCUR(libdir); |
4975 | if (libpath_len >= 4 && memEQ (libpath, ".../", 4)) { | |
4976 | /* Game on! */ | |
890ce7af | 4977 | SV * const caret_X = get_sv("\030", 0); |
88fe16b2 NC |
4978 | /* Going to use the SV just as a scratch buffer holding a C |
4979 | string: */ | |
4980 | SV *prefix_sv; | |
4981 | char *prefix; | |
4982 | char *lastslash; | |
4983 | ||
4984 | /* $^X is *the* source of taint if tainting is on, hence | |
4985 | SvPOK() won't be true. */ | |
4986 | assert(caret_X); | |
4987 | assert(SvPOKp(caret_X)); | |
4988 | prefix_sv = newSVpvn(SvPVX(caret_X), SvCUR(caret_X)); | |
4989 | /* Firstly take off the leading .../ | |
4990 | If all else fail we'll do the paths relative to the current | |
4991 | directory. */ | |
4992 | sv_chop(libdir, libpath + 4); | |
4993 | /* Don't use SvPV as we're intentionally bypassing taining, | |
4994 | mortal copies that the mg_get of tainting creates, and | |
4995 | corruption that seems to come via the save stack. | |
4996 | I guess that the save stack isn't correctly set up yet. */ | |
4997 | libpath = SvPVX(libdir); | |
4998 | libpath_len = SvCUR(libdir); | |
4999 | ||
5000 | /* This would work more efficiently with memrchr, but as it's | |
5001 | only a GNU extension we'd need to probe for it and | |
5002 | implement our own. Not hard, but maybe not worth it? */ | |
5003 | ||
5004 | prefix = SvPVX(prefix_sv); | |
5005 | lastslash = strrchr(prefix, '/'); | |
5006 | ||
5007 | /* First time in with the *lastslash = '\0' we just wipe off | |
5008 | the trailing /perl from (say) /usr/foo/bin/perl | |
5009 | */ | |
5010 | if (lastslash) { | |
5011 | SV *tempsv; | |
5012 | while ((*lastslash = '\0'), /* Do that, come what may. */ | |
5013 | (libpath_len >= 3 && memEQ(libpath, "../", 3) | |
5014 | && (lastslash = strrchr(prefix, '/')))) { | |
5015 | if (lastslash[1] == '\0' | |
5016 | || (lastslash[1] == '.' | |
5017 | && (lastslash[2] == '/' /* ends "/." */ | |
5018 | || (lastslash[2] == '/' | |
5019 | && lastslash[3] == '/' /* or "/.." */ | |
5020 | )))) { | |
5021 | /* Prefix ends "/" or "/." or "/..", any of which | |
5022 | are fishy, so don't do any more logical cleanup. | |
5023 | */ | |
5024 | break; | |
5025 | } | |
5026 | /* Remove leading "../" from path */ | |
5027 | libpath += 3; | |
5028 | libpath_len -= 3; | |
5029 | /* Next iteration round the loop removes the last | |
5030 | directory name from prefix by writing a '\0' in | |
5031 | the while clause. */ | |
5032 | } | |
5033 | /* prefix has been terminated with a '\0' to the correct | |
5034 | length. libpath points somewhere into the libdir SV. | |
5035 | We need to join the 2 with '/' and drop the result into | |
5036 | libdir. */ | |
5037 | tempsv = Perl_newSVpvf(aTHX_ "%s/%s", prefix, libpath); | |
5038 | SvREFCNT_dec(libdir); | |
5039 | /* And this is the new libdir. */ | |
5040 | libdir = tempsv; | |
5041 | if (PL_tainting && | |
5042 | (PL_uid != PL_euid || PL_gid != PL_egid)) { | |
5043 | /* Need to taint reloccated paths if running set ID */ | |
5044 | SvTAINTED_on(libdir); | |
5045 | } | |
5046 | } | |
5047 | SvREFCNT_dec(prefix_sv); | |
5048 | } | |
88fe16b2 | 5049 | #endif |
dd374669 | 5050 | } |
774d564b | 5051 | /* |
5052 | * BEFORE pushing libdir onto @INC we may first push version- and | |
5053 | * archname-specific sub-directories. | |
5054 | */ | |
9c8a64f0 | 5055 | if (addsubdirs || addoldvers) { |
29d82f8d | 5056 | #ifdef PERL_INC_VERSION_LIST |
8353b874 | 5057 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
c4420975 AL |
5058 | const char * const incverlist[] = { PERL_INC_VERSION_LIST }; |
5059 | const char * const *incver; | |
29d82f8d | 5060 | #endif |
aa689395 | 5061 | #ifdef VMS |
5062 | char *unix; | |
5063 | STRLEN len; | |
774d564b | 5064 | |
bd61b366 | 5065 | if ((unix = tounixspec_ts(SvPV(libdir,len),NULL)) != NULL) { |
aa689395 | 5066 | len = strlen(unix); |
5067 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
5068 | sv_usepvn(libdir,unix,len); | |
5069 | } | |
5070 | else | |
bf49b057 | 5071 | PerlIO_printf(Perl_error_log, |
aa689395 | 5072 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 5073 | SvPV(libdir,len)); |
aa689395 | 5074 | #endif |
9c8a64f0 | 5075 | if (addsubdirs) { |
bf4acbe4 GS |
5076 | #ifdef MACOS_TRADITIONAL |
5077 | #define PERL_AV_SUFFIX_FMT "" | |
084592ab CN |
5078 | #define PERL_ARCH_FMT "%s:" |
5079 | #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT | |
bf4acbe4 GS |
5080 | #else |
5081 | #define PERL_AV_SUFFIX_FMT "/" | |
5082 | #define PERL_ARCH_FMT "/%s" | |
084592ab | 5083 | #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT |
bf4acbe4 | 5084 | #endif |
9c8a64f0 | 5085 | /* .../version/archname if -d .../version/archname */ |
084592ab | 5086 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, |
be2597df | 5087 | SVfARG(libdir), |
9c8a64f0 GS |
5088 | (int)PERL_REVISION, (int)PERL_VERSION, |
5089 | (int)PERL_SUBVERSION, ARCHNAME); | |
ad17a1ae | 5090 | subdir = S_incpush_if_exists(aTHX_ subdir); |
4b03c463 | 5091 | |
9c8a64f0 | 5092 | /* .../version if -d .../version */ |
95b63a38 | 5093 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, |
be2597df | 5094 | SVfARG(libdir), |
9c8a64f0 GS |
5095 | (int)PERL_REVISION, (int)PERL_VERSION, |
5096 | (int)PERL_SUBVERSION); | |
ad17a1ae | 5097 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5098 | |
5099 | /* .../archname if -d .../archname */ | |
95b63a38 | 5100 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, |
be2597df | 5101 | SVfARG(libdir), ARCHNAME); |
ad17a1ae NC |
5102 | subdir = S_incpush_if_exists(aTHX_ subdir); |
5103 | ||
29d82f8d | 5104 | } |
9c8a64f0 | 5105 | |
9c8a64f0 | 5106 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 5107 | if (addoldvers) { |
9c8a64f0 GS |
5108 | for (incver = incverlist; *incver; incver++) { |
5109 | /* .../xxx if -d .../xxx */ | |
be2597df MHM |
5110 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, |
5111 | SVfARG(libdir), *incver); | |
ad17a1ae | 5112 | subdir = S_incpush_if_exists(aTHX_ subdir); |
9c8a64f0 GS |
5113 | } |
5114 | } | |
29d82f8d | 5115 | #endif |
774d564b | 5116 | } |
5117 | ||
5118 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 5119 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 5120 | } |
ad17a1ae | 5121 | if (subdir) { |
ef97f5b3 | 5122 | assert (SvREFCNT(subdir) == 1); |
ad17a1ae NC |
5123 | SvREFCNT_dec(subdir); |
5124 | } | |
34de22dd | 5125 | } |
93a17b20 | 5126 | |
199100c8 | 5127 | |
93a17b20 | 5128 | void |
864dbfa3 | 5129 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 5130 | { |
27da23d5 | 5131 | dVAR; |
971a9dd3 | 5132 | SV *atsv; |
5f40764f | 5133 | volatile const line_t oldline = PL_curcop ? CopLINE(PL_curcop) : 0; |
312caa8e | 5134 | CV *cv; |
22921e25 | 5135 | STRLEN len; |
6224f72b | 5136 | int ret; |
db36c5a1 | 5137 | dJMPENV; |
93a17b20 | 5138 | |
e1ec3a88 | 5139 | while (av_len(paramList) >= 0) { |
312caa8e | 5140 | cv = (CV*)av_shift(paramList); |
ece599bd RGS |
5141 | if (PL_savebegin) { |
5142 | if (paramList == PL_beginav) { | |
059a8bb7 | 5143 | /* save PL_beginav for compiler */ |
29a861e7 | 5144 | Perl_av_create_and_push(aTHX_ &PL_beginav_save, (SV*)cv); |
ece599bd RGS |
5145 | } |
5146 | else if (paramList == PL_checkav) { | |
5147 | /* save PL_checkav for compiler */ | |
29a861e7 | 5148 | Perl_av_create_and_push(aTHX_ &PL_checkav_save, (SV*)cv); |
ece599bd | 5149 | } |
3c10abe3 AG |
5150 | else if (paramList == PL_unitcheckav) { |
5151 | /* save PL_unitcheckav for compiler */ | |
29a861e7 | 5152 | Perl_av_create_and_push(aTHX_ &PL_unitcheckav_save, (SV*)cv); |
3c10abe3 | 5153 | } |
059a8bb7 | 5154 | } else { |
81d86705 NC |
5155 | if (!PL_madskills) |
5156 | SAVEFREESV(cv); | |
059a8bb7 | 5157 | } |
14dd3ad8 | 5158 | JMPENV_PUSH(ret); |
6224f72b | 5159 | switch (ret) { |
312caa8e | 5160 | case 0: |
81d86705 NC |
5161 | #ifdef PERL_MAD |
5162 | if (PL_madskills) | |
5163 | PL_madskills |= 16384; | |
5164 | #endif | |
d6f07c05 | 5165 | CALL_LIST_BODY(cv); |
81d86705 NC |
5166 | #ifdef PERL_MAD |
5167 | if (PL_madskills) | |
5168 | PL_madskills &= ~16384; | |
5169 | #endif | |
971a9dd3 | 5170 | atsv = ERRSV; |
10516c54 | 5171 | (void)SvPV_const(atsv, len); |
312caa8e CS |
5172 | if (len) { |
5173 | PL_curcop = &PL_compiling; | |
57843af0 | 5174 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5175 | if (paramList == PL_beginav) |
396482e1 | 5176 | sv_catpvs(atsv, "BEGIN failed--compilation aborted"); |
312caa8e | 5177 | else |
4f25aa18 GS |
5178 | Perl_sv_catpvf(aTHX_ atsv, |
5179 | "%s failed--call queue aborted", | |
7d30b5c4 | 5180 | paramList == PL_checkav ? "CHECK" |
4f25aa18 | 5181 | : paramList == PL_initav ? "INIT" |
3c10abe3 | 5182 | : paramList == PL_unitcheckav ? "UNITCHECK" |
4f25aa18 | 5183 | : "END"); |
312caa8e CS |
5184 | while (PL_scopestack_ix > oldscope) |
5185 | LEAVE; | |
14dd3ad8 | 5186 | JMPENV_POP; |
be2597df | 5187 | Perl_croak(aTHX_ "%"SVf"", SVfARG(atsv)); |
a0d0e21e | 5188 | } |
85e6fe83 | 5189 | break; |
6224f72b | 5190 | case 1: |
f86702cc | 5191 | STATUS_ALL_FAILURE; |
85e6fe83 | 5192 | /* FALL THROUGH */ |
6224f72b | 5193 | case 2: |
85e6fe83 | 5194 | /* my_exit() was called */ |
3280af22 | 5195 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 5196 | LEAVE; |
84902520 | 5197 | FREETMPS; |
3280af22 | 5198 | PL_curstash = PL_defstash; |
3280af22 | 5199 | PL_curcop = &PL_compiling; |
57843af0 | 5200 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 5201 | JMPENV_POP; |
cc3604b1 | 5202 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { |
3280af22 | 5203 | if (paramList == PL_beginav) |
cea2e8a9 | 5204 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 5205 | else |
4f25aa18 | 5206 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
7d30b5c4 | 5207 | paramList == PL_checkav ? "CHECK" |
4f25aa18 | 5208 | : paramList == PL_initav ? "INIT" |
3c10abe3 | 5209 | : paramList == PL_unitcheckav ? "UNITCHECK" |
4f25aa18 | 5210 | : "END"); |
85e6fe83 | 5211 | } |
f86702cc | 5212 | my_exit_jump(); |
85e6fe83 | 5213 | /* NOTREACHED */ |
6224f72b | 5214 | case 3: |
312caa8e CS |
5215 | if (PL_restartop) { |
5216 | PL_curcop = &PL_compiling; | |
57843af0 | 5217 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 5218 | JMPENV_JUMP(3); |
85e6fe83 | 5219 | } |
bf49b057 | 5220 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
5221 | FREETMPS; |
5222 | break; | |
8990e307 | 5223 | } |
14dd3ad8 | 5224 | JMPENV_POP; |
93a17b20 | 5225 | } |
93a17b20 | 5226 | } |
93a17b20 | 5227 | |
f86702cc | 5228 | void |
864dbfa3 | 5229 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 5230 | { |
97aff369 | 5231 | dVAR; |
8b73bbec | 5232 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
6c9570dc | 5233 | (void*)thr, (unsigned long) status)); |
f86702cc | 5234 | switch (status) { |
5235 | case 0: | |
5236 | STATUS_ALL_SUCCESS; | |
5237 | break; | |
5238 | case 1: | |
5239 | STATUS_ALL_FAILURE; | |
5240 | break; | |
5241 | default: | |
6ac6a52b | 5242 | STATUS_EXIT_SET(status); |
f86702cc | 5243 | break; |
5244 | } | |
5245 | my_exit_jump(); | |
5246 | } | |
5247 | ||
5248 | void | |
864dbfa3 | 5249 | Perl_my_failure_exit(pTHX) |
f86702cc | 5250 | { |
97aff369 | 5251 | dVAR; |
f86702cc | 5252 | #ifdef VMS |
fb38d079 JM |
5253 | /* We have been called to fall on our sword. The desired exit code |
5254 | * should be already set in STATUS_UNIX, but could be shifted over | |
0968cdad JM |
5255 | * by 8 bits. STATUS_UNIX_EXIT_SET will handle the cases where a |
5256 | * that code is set. | |
fb38d079 JM |
5257 | * |
5258 | * If an error code has not been set, then force the issue. | |
5259 | */ | |
0968cdad JM |
5260 | if (MY_POSIX_EXIT) { |
5261 | ||
5262 | /* In POSIX_EXIT mode follow Perl documentations and use 255 for | |
5263 | * the exit code when there isn't an error. | |
5264 | */ | |
5265 | ||
5266 | if (STATUS_UNIX == 0) | |
5267 | STATUS_UNIX_EXIT_SET(255); | |
5268 | else { | |
5269 | STATUS_UNIX_EXIT_SET(STATUS_UNIX); | |
5270 | ||
5271 | /* The exit code could have been set by $? or vmsish which | |
5272 | * means that it may not be fatal. So convert | |
5273 | * success/warning codes to fatal. | |
5274 | */ | |
5275 | if ((STATUS_NATIVE & (STS$K_SEVERE|STS$K_ERROR)) == 0) | |
5276 | STATUS_UNIX_EXIT_SET(255); | |
5277 | } | |
5278 | } | |
5279 | else { | |
5280 | /* Traditionally Perl on VMS always expects a Fatal Error. */ | |
5281 | if (vaxc$errno & 1) { | |
5282 | ||
5283 | /* So force success status to failure */ | |
5284 | if (STATUS_NATIVE & 1) | |
5285 | STATUS_ALL_FAILURE; | |
5286 | } | |
5287 | else { | |
5288 | if (!vaxc$errno) { | |
5289 | STATUS_UNIX = EINTR; /* In case something cares */ | |
5290 | STATUS_ALL_FAILURE; | |
5291 | } | |
5292 | else { | |
5293 | int severity; | |
5294 | STATUS_NATIVE = vaxc$errno; /* Should already be this */ | |
5295 | ||
5296 | /* Encode the severity code */ | |
5297 | severity = STATUS_NATIVE & STS$M_SEVERITY; | |
5298 | STATUS_UNIX = (severity ? severity : 1) << 8; | |
5299 | ||
5300 | /* Perl expects this to be a fatal error */ | |
5301 | if (severity != STS$K_SEVERE) | |
5302 | STATUS_ALL_FAILURE; | |
5303 | } | |
5304 | } | |
5305 | } | |
fb38d079 | 5306 | |
f86702cc | 5307 | #else |
9b599b2a | 5308 | int exitstatus; |
f86702cc | 5309 | if (errno & 255) |
e5218da5 | 5310 | STATUS_UNIX_SET(errno); |
9b599b2a | 5311 | else { |
e5218da5 | 5312 | exitstatus = STATUS_UNIX >> 8; |
9b599b2a | 5313 | if (exitstatus & 255) |
e5218da5 | 5314 | STATUS_UNIX_SET(exitstatus); |
9b599b2a | 5315 | else |
e5218da5 | 5316 | STATUS_UNIX_SET(255); |
9b599b2a | 5317 | } |
f86702cc | 5318 | #endif |
5319 | my_exit_jump(); | |
93a17b20 LW |
5320 | } |
5321 | ||
76e3520e | 5322 | STATIC void |
cea2e8a9 | 5323 | S_my_exit_jump(pTHX) |
f86702cc | 5324 | { |
27da23d5 | 5325 | dVAR; |
f86702cc | 5326 | |
3280af22 NIS |
5327 | if (PL_e_script) { |
5328 | SvREFCNT_dec(PL_e_script); | |
a0714e2c | 5329 | PL_e_script = NULL; |
f86702cc | 5330 | } |
5331 | ||
3280af22 | 5332 | POPSTACK_TO(PL_mainstack); |
f97a0ef2 RH |
5333 | dounwind(-1); |
5334 | LEAVE_SCOPE(0); | |
ff0cee69 | 5335 | |
6224f72b | 5336 | JMPENV_JUMP(2); |
f86702cc | 5337 | } |
873ef191 | 5338 | |
0cb96387 | 5339 | static I32 |
acfe0abc | 5340 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 | 5341 | { |
97aff369 | 5342 | dVAR; |
9d4ba2ae AL |
5343 | const char * const p = SvPVX_const(PL_e_script); |
5344 | const char *nl = strchr(p, '\n'); | |
5345 | ||
5346 | PERL_UNUSED_ARG(idx); | |
5347 | PERL_UNUSED_ARG(maxlen); | |
dd374669 | 5348 | |
3280af22 | 5349 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 5350 | if (nl-p == 0) { |
0cb96387 | 5351 | filter_del(read_e_script); |
873ef191 | 5352 | return 0; |
7dfe3f66 | 5353 | } |
873ef191 | 5354 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 5355 | sv_chop(PL_e_script, nl); |
873ef191 GS |
5356 | return 1; |
5357 | } | |
66610fdd RGS |
5358 | |
5359 | /* | |
5360 | * Local variables: | |
5361 | * c-indentation-style: bsd | |
5362 | * c-basic-offset: 4 | |
5363 | * indent-tabs-mode: t | |
5364 | * End: | |
5365 | * | |
37442d52 RGS |
5366 | * ex: set ts=8 sts=4 sw=4 noet: |
5367 | */ |