Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
4bb101f2 | 3 | * Copyright (C) 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
b5f8cc5c | 4 | * 2000, 2001, 2002, 2003, 2004, 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 | |
5311654c JH |
95 | #ifdef __BEOS__ |
96 | # define HZ 1000000 | |
97 | #endif | |
98 | ||
99 | #ifndef HZ | |
100 | # ifdef CLK_TCK | |
101 | # define HZ CLK_TCK | |
102 | # else | |
103 | # define HZ 60 | |
104 | # endif | |
105 | #endif | |
106 | ||
7114a2d2 | 107 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) && !defined(PERL_MICRO) |
20ce7b12 | 108 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 | 109 | #endif |
110 | ||
acfe0abc | 111 | static I32 read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen); |
0cb96387 | 112 | |
a687059c LW |
113 | #ifdef IAMSUID |
114 | #ifndef DOSUID | |
115 | #define DOSUID | |
116 | #endif | |
ae3f3efd | 117 | #endif /* IAMSUID */ |
378cc40b | 118 | |
a687059c LW |
119 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
120 | #ifdef DOSUID | |
121 | #undef DOSUID | |
122 | #endif | |
123 | #endif | |
8d063cd8 | 124 | |
3db8f154 | 125 | #if defined(USE_ITHREADS) |
06d86050 GS |
126 | # define INIT_TLS_AND_INTERP \ |
127 | STMT_START { \ | |
128 | if (!PL_curinterp) { \ | |
129 | PERL_SET_INTERP(my_perl); \ | |
130 | INIT_THREADS; \ | |
131 | ALLOC_THREAD_KEY; \ | |
534825c4 GS |
132 | PERL_SET_THX(my_perl); \ |
133 | OP_REFCNT_INIT; \ | |
7d4724a4 | 134 | MUTEX_INIT(&PL_dollarzero_mutex); \ |
534825c4 GS |
135 | } \ |
136 | else { \ | |
137 | PERL_SET_THX(my_perl); \ | |
06d86050 | 138 | } \ |
06d86050 | 139 | } STMT_END |
3db8f154 | 140 | #else |
06d86050 GS |
141 | # define INIT_TLS_AND_INTERP \ |
142 | STMT_START { \ | |
143 | if (!PL_curinterp) { \ | |
144 | PERL_SET_INTERP(my_perl); \ | |
145 | } \ | |
146 | PERL_SET_THX(my_perl); \ | |
147 | } STMT_END | |
148 | # endif | |
06d86050 | 149 | |
32e30700 GS |
150 | #ifdef PERL_IMPLICIT_SYS |
151 | PerlInterpreter * | |
7766f137 GS |
152 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS, |
153 | struct IPerlMem* ipMP, struct IPerlEnv* ipE, | |
32e30700 GS |
154 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, |
155 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
156 | struct IPerlProc* ipP) | |
157 | { | |
158 | PerlInterpreter *my_perl; | |
32e30700 GS |
159 | /* New() needs interpreter, so call malloc() instead */ |
160 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); | |
06d86050 | 161 | INIT_TLS_AND_INTERP; |
32e30700 GS |
162 | Zero(my_perl, 1, PerlInterpreter); |
163 | PL_Mem = ipM; | |
7766f137 GS |
164 | PL_MemShared = ipMS; |
165 | PL_MemParse = ipMP; | |
32e30700 GS |
166 | PL_Env = ipE; |
167 | PL_StdIO = ipStd; | |
168 | PL_LIO = ipLIO; | |
169 | PL_Dir = ipD; | |
170 | PL_Sock = ipS; | |
171 | PL_Proc = ipP; | |
7766f137 | 172 | |
32e30700 GS |
173 | return my_perl; |
174 | } | |
175 | #else | |
954c1994 GS |
176 | |
177 | /* | |
ccfc67b7 JH |
178 | =head1 Embedding Functions |
179 | ||
954c1994 GS |
180 | =for apidoc perl_alloc |
181 | ||
182 | Allocates a new Perl interpreter. See L<perlembed>. | |
183 | ||
184 | =cut | |
185 | */ | |
186 | ||
93a17b20 | 187 | PerlInterpreter * |
cea2e8a9 | 188 | perl_alloc(void) |
79072805 | 189 | { |
cea2e8a9 | 190 | PerlInterpreter *my_perl; |
35d7cf2c JH |
191 | #ifdef USE_5005THREADS |
192 | dTHX; | |
193 | #endif | |
79072805 | 194 | |
54aff467 | 195 | /* New() needs interpreter, so call malloc() instead */ |
e8ee3774 | 196 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
ba869deb | 197 | |
06d86050 | 198 | INIT_TLS_AND_INTERP; |
e90e2364 | 199 | return ZeroD(my_perl, 1, PerlInterpreter); |
79072805 | 200 | } |
32e30700 | 201 | #endif /* PERL_IMPLICIT_SYS */ |
79072805 | 202 | |
954c1994 GS |
203 | /* |
204 | =for apidoc perl_construct | |
205 | ||
206 | Initializes a new Perl interpreter. See L<perlembed>. | |
207 | ||
208 | =cut | |
209 | */ | |
210 | ||
79072805 | 211 | void |
0cb96387 | 212 | perl_construct(pTHXx) |
79072805 | 213 | { |
8990e307 | 214 | #ifdef MULTIPLICITY |
54aff467 | 215 | init_interp(); |
ac27b0f5 | 216 | PL_perl_destruct_level = 1; |
54aff467 GS |
217 | #else |
218 | if (PL_perl_destruct_level > 0) | |
219 | init_interp(); | |
220 | #endif | |
33f46ff6 | 221 | /* Init the real globals (and main thread)? */ |
3280af22 | 222 | if (!PL_linestr) { |
14dd3ad8 | 223 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
0b94c7bb | 224 | PL_protect = MEMBER_TO_FPTR(Perl_default_protect); /* for exceptions */ |
14dd3ad8 | 225 | #endif |
312caa8e | 226 | |
2aea9f8a GS |
227 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
228 | ||
3280af22 NIS |
229 | PL_linestr = NEWSV(65,79); |
230 | sv_upgrade(PL_linestr,SVt_PVIV); | |
79072805 | 231 | |
3280af22 | 232 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
233 | /* set read-only and try to insure than we wont see REFCNT==0 |
234 | very often */ | |
235 | ||
3280af22 NIS |
236 | SvREADONLY_on(&PL_sv_undef); |
237 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 238 | |
3280af22 NIS |
239 | sv_setpv(&PL_sv_no,PL_No); |
240 | SvNV(&PL_sv_no); | |
241 | SvREADONLY_on(&PL_sv_no); | |
242 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 243 | |
3280af22 NIS |
244 | sv_setpv(&PL_sv_yes,PL_Yes); |
245 | SvNV(&PL_sv_yes); | |
246 | SvREADONLY_on(&PL_sv_yes); | |
247 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
7996736c MHM |
248 | |
249 | SvREADONLY_on(&PL_sv_placeholder); | |
250 | SvREFCNT(&PL_sv_placeholder) = (~(U32)0)/2; | |
6e72f9df | 251 | } |
79072805 | 252 | |
cea2e8a9 | 253 | PL_sighandlerp = Perl_sighandler; |
3280af22 | 254 | PL_pidstatus = newHV(); |
79072805 LW |
255 | } |
256 | ||
8bfdd7d9 | 257 | PL_rs = newSVpvn("\n", 1); |
dc92893f | 258 | |
cea2e8a9 | 259 | init_stacks(); |
79072805 | 260 | |
748a9306 | 261 | init_ids(); |
3280af22 | 262 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 263 | |
312caa8e | 264 | JMPENV_BOOTSTRAP; |
f86702cc | 265 | STATUS_ALL_SUCCESS; |
266 | ||
0672f40e | 267 | init_i18nl10n(1); |
36477c24 | 268 | SET_NUMERIC_STANDARD(); |
0b5b802d | 269 | |
ab821d7f | 270 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 271 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 272 | #endif |
273 | ||
52853b95 GS |
274 | #ifdef HAVE_INTERP_INTERN |
275 | sys_intern_init(); | |
276 | #endif | |
277 | ||
3a1ee7e8 | 278 | PerlIO_init(aTHX); /* Hook to IO system */ |
760ac839 | 279 | |
3280af22 NIS |
280 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
281 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
24944567 | 282 | PL_errors = newSVpvn("",0); |
48c6b404 | 283 | sv_setpvn(PERL_DEBUG_PAD(0), "", 0); /* For regex debugging. */ |
1f483ca1 JH |
284 | sv_setpvn(PERL_DEBUG_PAD(1), "", 0); /* ext/re needs these */ |
285 | sv_setpvn(PERL_DEBUG_PAD(2), "", 0); /* even without DEBUGGING. */ | |
1fcf4c12 | 286 | #ifdef USE_ITHREADS |
13137afc AB |
287 | PL_regex_padav = newAV(); |
288 | av_push(PL_regex_padav,(SV*)newAV()); /* First entry is an array of empty elements */ | |
289 | PL_regex_pad = AvARRAY(PL_regex_padav); | |
1fcf4c12 | 290 | #endif |
e5dd39fc | 291 | #ifdef USE_REENTRANT_API |
59bd0823 | 292 | Perl_reentrant_init(aTHX); |
e5dd39fc | 293 | #endif |
3d47000e AB |
294 | |
295 | /* Note that strtab is a rather special HV. Assumptions are made | |
296 | about not iterating on it, and not adding tie magic to it. | |
297 | It is properly deallocated in perl_destruct() */ | |
298 | PL_strtab = newHV(); | |
299 | ||
3d47000e AB |
300 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
301 | hv_ksplit(PL_strtab, 512); | |
302 | ||
0631ea03 AB |
303 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
304 | _dyld_lookup_and_bind | |
305 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
306 | #endif /* environ */ | |
307 | ||
2f42fcb0 JH |
308 | #ifndef PERL_MICRO |
309 | # ifdef USE_ENVIRON_ARRAY | |
0631ea03 | 310 | PL_origenviron = environ; |
2f42fcb0 | 311 | # endif |
0631ea03 AB |
312 | #endif |
313 | ||
5311654c JH |
314 | /* Use sysconf(_SC_CLK_TCK) if available, if not |
315 | * available or if the sysconf() fails, use the HZ. */ | |
316 | #if defined(HAS_SYSCONF) && defined(_SC_CLK_TCK) | |
317 | PL_clocktick = sysconf(_SC_CLK_TCK); | |
318 | if (PL_clocktick <= 0) | |
319 | #endif | |
320 | PL_clocktick = HZ; | |
321 | ||
081fc587 AB |
322 | PL_stashcache = newHV(); |
323 | ||
d7aa5382 JP |
324 | PL_patchlevel = newSVpv( |
325 | Perl_form(aTHX_ "%d.%d.%d", | |
326 | (int)PERL_REVISION, | |
327 | (int)PERL_VERSION, | |
328 | (int)PERL_SUBVERSION ), 0 | |
329 | ); | |
330 | ||
8990e307 | 331 | ENTER; |
79072805 LW |
332 | } |
333 | ||
954c1994 | 334 | /* |
62375a60 NIS |
335 | =for apidoc nothreadhook |
336 | ||
337 | Stub that provides thread hook for perl_destruct when there are | |
338 | no threads. | |
339 | ||
340 | =cut | |
341 | */ | |
342 | ||
343 | int | |
4e9e3734 | 344 | Perl_nothreadhook(pTHX) |
62375a60 NIS |
345 | { |
346 | return 0; | |
347 | } | |
348 | ||
349 | /* | |
954c1994 GS |
350 | =for apidoc perl_destruct |
351 | ||
352 | Shuts down a Perl interpreter. See L<perlembed>. | |
353 | ||
354 | =cut | |
355 | */ | |
356 | ||
31d77e54 | 357 | int |
0cb96387 | 358 | perl_destruct(pTHXx) |
79072805 | 359 | { |
7c474504 | 360 | volatile int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
a0d0e21e | 361 | HV *hv; |
4d1ff10f | 362 | #ifdef USE_5005THREADS |
cea2e8a9 | 363 | dTHX; |
4d1ff10f | 364 | #endif /* USE_5005THREADS */ |
8990e307 | 365 | |
7766f137 GS |
366 | /* wait for all pseudo-forked children to finish */ |
367 | PERL_WAIT_FOR_CHILDREN; | |
368 | ||
3280af22 | 369 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
370 | #ifdef DEBUGGING |
371 | { | |
372 | char *s; | |
155aba94 | 373 | if ((s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL"))) { |
5f05dabc | 374 | int i = atoi(s); |
375 | if (destruct_level < i) | |
376 | destruct_level = i; | |
377 | } | |
4633a7c4 LW |
378 | } |
379 | #endif | |
380 | ||
31d77e54 AB |
381 | |
382 | if(PL_exit_flags & PERL_EXIT_DESTRUCT_END) { | |
f3faeb53 AB |
383 | dJMPENV; |
384 | int x = 0; | |
385 | ||
386 | JMPENV_PUSH(x); | |
387 | if (PL_endav && !PL_minus_c) | |
388 | call_list(PL_scopestack_ix, PL_endav); | |
389 | JMPENV_POP; | |
26f423df | 390 | } |
f3faeb53 | 391 | LEAVE; |
a0d0e21e LW |
392 | FREETMPS; |
393 | ||
e00b64d4 | 394 | /* Need to flush since END blocks can produce output */ |
f13a2bc0 | 395 | my_fflush_all(); |
e00b64d4 | 396 | |
62375a60 NIS |
397 | if (CALL_FPTR(PL_threadhook)(aTHX)) { |
398 | /* Threads hook has vetoed further cleanup */ | |
b47cad08 | 399 | return STATUS_NATIVE_EXPORT; |
62375a60 NIS |
400 | } |
401 | ||
ff0cee69 | 402 | /* We must account for everything. */ |
403 | ||
404 | /* Destroy the main CV and syntax tree */ | |
3280af22 | 405 | if (PL_main_root) { |
4e380990 DM |
406 | /* ensure comppad/curpad to refer to main's pad */ |
407 | if (CvPADLIST(PL_main_cv)) { | |
408 | PAD_SET_CUR_NOSAVE(CvPADLIST(PL_main_cv), 1); | |
409 | } | |
3280af22 NIS |
410 | op_free(PL_main_root); |
411 | PL_main_root = Nullop; | |
a0d0e21e | 412 | } |
3280af22 NIS |
413 | PL_curcop = &PL_compiling; |
414 | PL_main_start = Nullop; | |
415 | SvREFCNT_dec(PL_main_cv); | |
416 | PL_main_cv = Nullcv; | |
24d3c518 | 417 | PL_dirty = TRUE; |
ff0cee69 | 418 | |
13621cfb NIS |
419 | /* Tell PerlIO we are about to tear things apart in case |
420 | we have layers which are using resources that should | |
421 | be cleaned up now. | |
422 | */ | |
423 | ||
424 | PerlIO_destruct(aTHX); | |
425 | ||
3280af22 | 426 | if (PL_sv_objcount) { |
a0d0e21e LW |
427 | /* |
428 | * Try to destruct global references. We do this first so that the | |
429 | * destructors and destructees still exist. Some sv's might remain. | |
430 | * Non-referenced objects are on their own. | |
431 | */ | |
a0d0e21e | 432 | sv_clean_objs(); |
bf9cdc68 | 433 | PL_sv_objcount = 0; |
8990e307 LW |
434 | } |
435 | ||
5cd24f17 | 436 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 NIS |
437 | SvREFCNT_dec(PL_warnhook); |
438 | PL_warnhook = Nullsv; | |
439 | SvREFCNT_dec(PL_diehook); | |
440 | PL_diehook = Nullsv; | |
5cd24f17 | 441 | |
4b556e6c | 442 | /* call exit list functions */ |
3280af22 | 443 | while (PL_exitlistlen-- > 0) |
acfe0abc | 444 | PL_exitlist[PL_exitlistlen].fn(aTHX_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 445 | |
3280af22 | 446 | Safefree(PL_exitlist); |
4b556e6c | 447 | |
1c4916e5 CB |
448 | PL_exitlist = NULL; |
449 | PL_exitlistlen = 0; | |
450 | ||
a0d0e21e | 451 | if (destruct_level == 0){ |
8990e307 | 452 | |
a0d0e21e | 453 | DEBUG_P(debprofdump()); |
ac27b0f5 | 454 | |
56a2bab7 NIS |
455 | #if defined(PERLIO_LAYERS) |
456 | /* No more IO - including error messages ! */ | |
457 | PerlIO_cleanup(aTHX); | |
458 | #endif | |
459 | ||
a0d0e21e | 460 | /* The exit() function will do everything that needs doing. */ |
b47cad08 | 461 | return STATUS_NATIVE_EXPORT; |
a0d0e21e | 462 | } |
5dd60ef7 | 463 | |
551a8b83 | 464 | /* jettison our possibly duplicated environment */ |
4b647fb0 DM |
465 | /* if PERL_USE_SAFE_PUTENV is defined environ will not have been copied |
466 | * so we certainly shouldn't free it here | |
467 | */ | |
2f42fcb0 | 468 | #ifndef PERL_MICRO |
4b647fb0 | 469 | #if defined(USE_ENVIRON_ARRAY) && !defined(PERL_USE_SAFE_PUTENV) |
4efc5df6 GS |
470 | if (environ != PL_origenviron |
471 | #ifdef USE_ITHREADS | |
472 | /* only main thread can free environ[0] contents */ | |
473 | && PL_curinterp == aTHX | |
474 | #endif | |
475 | ) | |
476 | { | |
551a8b83 JH |
477 | I32 i; |
478 | ||
479 | for (i = 0; environ[i]; i++) | |
4b420006 | 480 | safesysfree(environ[i]); |
0631ea03 | 481 | |
4b420006 JH |
482 | /* Must use safesysfree() when working with environ. */ |
483 | safesysfree(environ); | |
551a8b83 JH |
484 | |
485 | environ = PL_origenviron; | |
486 | } | |
487 | #endif | |
2f42fcb0 | 488 | #endif /* !PERL_MICRO */ |
551a8b83 | 489 | |
804ffa60 DM |
490 | /* reset so print() ends up where we expect */ |
491 | setdefout(Nullgv); | |
492 | ||
5f8cb046 DM |
493 | #ifdef USE_ITHREADS |
494 | /* the syntax tree is shared between clones | |
495 | * so op_free(PL_main_root) only ReREFCNT_dec's | |
496 | * REGEXPs in the parent interpreter | |
497 | * we need to manually ReREFCNT_dec for the clones | |
498 | */ | |
499 | { | |
500 | I32 i = AvFILLp(PL_regex_padav) + 1; | |
501 | SV **ary = AvARRAY(PL_regex_padav); | |
502 | ||
503 | while (i) { | |
35061a7e | 504 | SV *resv = ary[--i]; |
ba89bb6e | 505 | REGEXP *re = INT2PTR(REGEXP *,SvIVX(resv)); |
35061a7e DM |
506 | |
507 | if (SvFLAGS(resv) & SVf_BREAK) { | |
577e12cc | 508 | /* this is PL_reg_curpm, already freed |
35061a7e DM |
509 | * flag is set in regexec.c:S_regtry |
510 | */ | |
511 | SvFLAGS(resv) &= ~SVf_BREAK; | |
3a1ee7e8 | 512 | } |
1cc8b4c5 AB |
513 | else if(SvREPADTMP(resv)) { |
514 | SvREPADTMP_off(resv); | |
515 | } | |
35061a7e | 516 | else { |
5f8cb046 DM |
517 | ReREFCNT_dec(re); |
518 | } | |
519 | } | |
520 | } | |
521 | SvREFCNT_dec(PL_regex_padav); | |
522 | PL_regex_padav = Nullav; | |
523 | PL_regex_pad = NULL; | |
524 | #endif | |
525 | ||
081fc587 AB |
526 | SvREFCNT_dec((SV*) PL_stashcache); |
527 | PL_stashcache = NULL; | |
528 | ||
5f05dabc | 529 | /* loosen bonds of global variables */ |
530 | ||
3280af22 NIS |
531 | if(PL_rsfp) { |
532 | (void)PerlIO_close(PL_rsfp); | |
533 | PL_rsfp = Nullfp; | |
8ebc5c01 | 534 | } |
535 | ||
536 | /* Filters for program text */ | |
3280af22 NIS |
537 | SvREFCNT_dec(PL_rsfp_filters); |
538 | PL_rsfp_filters = Nullav; | |
8ebc5c01 | 539 | |
540 | /* switches */ | |
3280af22 NIS |
541 | PL_preprocess = FALSE; |
542 | PL_minus_n = FALSE; | |
543 | PL_minus_p = FALSE; | |
544 | PL_minus_l = FALSE; | |
545 | PL_minus_a = FALSE; | |
546 | PL_minus_F = FALSE; | |
547 | PL_doswitches = FALSE; | |
599cee73 | 548 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
549 | PL_doextract = FALSE; |
550 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
551 | PL_unsafe = FALSE; |
552 | ||
553 | Safefree(PL_inplace); | |
554 | PL_inplace = Nullch; | |
a7cb1f99 | 555 | SvREFCNT_dec(PL_patchlevel); |
3280af22 NIS |
556 | |
557 | if (PL_e_script) { | |
558 | SvREFCNT_dec(PL_e_script); | |
559 | PL_e_script = Nullsv; | |
8ebc5c01 | 560 | } |
561 | ||
bf9cdc68 RG |
562 | PL_perldb = 0; |
563 | ||
8ebc5c01 | 564 | /* magical thingies */ |
565 | ||
7889fe52 NIS |
566 | SvREFCNT_dec(PL_ofs_sv); /* $, */ |
567 | PL_ofs_sv = Nullsv; | |
5f05dabc | 568 | |
7889fe52 NIS |
569 | SvREFCNT_dec(PL_ors_sv); /* $\ */ |
570 | PL_ors_sv = Nullsv; | |
8ebc5c01 | 571 | |
3280af22 NIS |
572 | SvREFCNT_dec(PL_rs); /* $/ */ |
573 | PL_rs = Nullsv; | |
dc92893f | 574 | |
d33b2eba GS |
575 | PL_multiline = 0; /* $* */ |
576 | Safefree(PL_osname); /* $^O */ | |
577 | PL_osname = Nullch; | |
5f05dabc | 578 | |
3280af22 NIS |
579 | SvREFCNT_dec(PL_statname); |
580 | PL_statname = Nullsv; | |
581 | PL_statgv = Nullgv; | |
5f05dabc | 582 | |
8ebc5c01 | 583 | /* defgv, aka *_ should be taken care of elsewhere */ |
584 | ||
8ebc5c01 | 585 | /* clean up after study() */ |
3280af22 NIS |
586 | SvREFCNT_dec(PL_lastscream); |
587 | PL_lastscream = Nullsv; | |
588 | Safefree(PL_screamfirst); | |
589 | PL_screamfirst = 0; | |
590 | Safefree(PL_screamnext); | |
591 | PL_screamnext = 0; | |
8ebc5c01 | 592 | |
7d5ea4e7 GS |
593 | /* float buffer */ |
594 | Safefree(PL_efloatbuf); | |
595 | PL_efloatbuf = Nullch; | |
596 | PL_efloatsize = 0; | |
597 | ||
8ebc5c01 | 598 | /* startup and shutdown function lists */ |
3280af22 | 599 | SvREFCNT_dec(PL_beginav); |
5a837c8f | 600 | SvREFCNT_dec(PL_beginav_save); |
3280af22 | 601 | SvREFCNT_dec(PL_endav); |
7d30b5c4 | 602 | SvREFCNT_dec(PL_checkav); |
ece599bd | 603 | SvREFCNT_dec(PL_checkav_save); |
3280af22 NIS |
604 | SvREFCNT_dec(PL_initav); |
605 | PL_beginav = Nullav; | |
5a837c8f | 606 | PL_beginav_save = Nullav; |
3280af22 | 607 | PL_endav = Nullav; |
7d30b5c4 | 608 | PL_checkav = Nullav; |
ece599bd | 609 | PL_checkav_save = Nullav; |
3280af22 | 610 | PL_initav = Nullav; |
5618dfe8 | 611 | |
8ebc5c01 | 612 | /* shortcuts just get cleared */ |
3280af22 | 613 | PL_envgv = Nullgv; |
3280af22 NIS |
614 | PL_incgv = Nullgv; |
615 | PL_hintgv = Nullgv; | |
616 | PL_errgv = Nullgv; | |
617 | PL_argvgv = Nullgv; | |
618 | PL_argvoutgv = Nullgv; | |
619 | PL_stdingv = Nullgv; | |
bf49b057 | 620 | PL_stderrgv = Nullgv; |
3280af22 NIS |
621 | PL_last_in_gv = Nullgv; |
622 | PL_replgv = Nullgv; | |
bf9cdc68 RG |
623 | PL_DBgv = Nullgv; |
624 | PL_DBline = Nullgv; | |
625 | PL_DBsub = Nullgv; | |
626 | PL_DBsingle = Nullsv; | |
627 | PL_DBtrace = Nullsv; | |
628 | PL_DBsignal = Nullsv; | |
629 | PL_DBassertion = Nullsv; | |
630 | PL_DBcv = Nullcv; | |
631 | PL_dbargs = Nullav; | |
5c831c24 | 632 | PL_debstash = Nullhv; |
8ebc5c01 | 633 | |
7a1c5554 GS |
634 | SvREFCNT_dec(PL_argvout_stack); |
635 | PL_argvout_stack = Nullav; | |
8ebc5c01 | 636 | |
5c831c24 GS |
637 | SvREFCNT_dec(PL_modglobal); |
638 | PL_modglobal = Nullhv; | |
639 | SvREFCNT_dec(PL_preambleav); | |
640 | PL_preambleav = Nullav; | |
641 | SvREFCNT_dec(PL_subname); | |
642 | PL_subname = Nullsv; | |
643 | SvREFCNT_dec(PL_linestr); | |
644 | PL_linestr = Nullsv; | |
645 | SvREFCNT_dec(PL_pidstatus); | |
646 | PL_pidstatus = Nullhv; | |
647 | SvREFCNT_dec(PL_toptarget); | |
648 | PL_toptarget = Nullsv; | |
649 | SvREFCNT_dec(PL_bodytarget); | |
650 | PL_bodytarget = Nullsv; | |
651 | PL_formtarget = Nullsv; | |
652 | ||
d33b2eba | 653 | /* free locale stuff */ |
b9582b6a | 654 | #ifdef USE_LOCALE_COLLATE |
d33b2eba GS |
655 | Safefree(PL_collation_name); |
656 | PL_collation_name = Nullch; | |
b9582b6a | 657 | #endif |
d33b2eba | 658 | |
b9582b6a | 659 | #ifdef USE_LOCALE_NUMERIC |
d33b2eba GS |
660 | Safefree(PL_numeric_name); |
661 | PL_numeric_name = Nullch; | |
a453c169 | 662 | SvREFCNT_dec(PL_numeric_radix_sv); |
bf9cdc68 | 663 | PL_numeric_radix_sv = Nullsv; |
b9582b6a | 664 | #endif |
d33b2eba | 665 | |
5c831c24 GS |
666 | /* clear utf8 character classes */ |
667 | SvREFCNT_dec(PL_utf8_alnum); | |
668 | SvREFCNT_dec(PL_utf8_alnumc); | |
669 | SvREFCNT_dec(PL_utf8_ascii); | |
670 | SvREFCNT_dec(PL_utf8_alpha); | |
671 | SvREFCNT_dec(PL_utf8_space); | |
672 | SvREFCNT_dec(PL_utf8_cntrl); | |
673 | SvREFCNT_dec(PL_utf8_graph); | |
674 | SvREFCNT_dec(PL_utf8_digit); | |
675 | SvREFCNT_dec(PL_utf8_upper); | |
676 | SvREFCNT_dec(PL_utf8_lower); | |
677 | SvREFCNT_dec(PL_utf8_print); | |
678 | SvREFCNT_dec(PL_utf8_punct); | |
679 | SvREFCNT_dec(PL_utf8_xdigit); | |
680 | SvREFCNT_dec(PL_utf8_mark); | |
681 | SvREFCNT_dec(PL_utf8_toupper); | |
4dbdbdc2 | 682 | SvREFCNT_dec(PL_utf8_totitle); |
5c831c24 | 683 | SvREFCNT_dec(PL_utf8_tolower); |
b4e400f9 | 684 | SvREFCNT_dec(PL_utf8_tofold); |
82686b01 JH |
685 | SvREFCNT_dec(PL_utf8_idstart); |
686 | SvREFCNT_dec(PL_utf8_idcont); | |
5c831c24 GS |
687 | PL_utf8_alnum = Nullsv; |
688 | PL_utf8_alnumc = Nullsv; | |
689 | PL_utf8_ascii = Nullsv; | |
690 | PL_utf8_alpha = Nullsv; | |
691 | PL_utf8_space = Nullsv; | |
692 | PL_utf8_cntrl = Nullsv; | |
693 | PL_utf8_graph = Nullsv; | |
694 | PL_utf8_digit = Nullsv; | |
695 | PL_utf8_upper = Nullsv; | |
696 | PL_utf8_lower = Nullsv; | |
697 | PL_utf8_print = Nullsv; | |
698 | PL_utf8_punct = Nullsv; | |
699 | PL_utf8_xdigit = Nullsv; | |
700 | PL_utf8_mark = Nullsv; | |
701 | PL_utf8_toupper = Nullsv; | |
702 | PL_utf8_totitle = Nullsv; | |
703 | PL_utf8_tolower = Nullsv; | |
b4e400f9 | 704 | PL_utf8_tofold = Nullsv; |
82686b01 JH |
705 | PL_utf8_idstart = Nullsv; |
706 | PL_utf8_idcont = Nullsv; | |
5c831c24 | 707 | |
971a9dd3 GS |
708 | if (!specialWARN(PL_compiling.cop_warnings)) |
709 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
5c831c24 | 710 | PL_compiling.cop_warnings = Nullsv; |
ac27b0f5 NIS |
711 | if (!specialCopIO(PL_compiling.cop_io)) |
712 | SvREFCNT_dec(PL_compiling.cop_io); | |
713 | PL_compiling.cop_io = Nullsv; | |
05ec9bb3 NIS |
714 | CopFILE_free(&PL_compiling); |
715 | CopSTASH_free(&PL_compiling); | |
5c831c24 | 716 | |
a0d0e21e | 717 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 718 | |
3280af22 NIS |
719 | hv = PL_defstash; |
720 | PL_defstash = 0; | |
a0d0e21e | 721 | SvREFCNT_dec(hv); |
5c831c24 GS |
722 | SvREFCNT_dec(PL_curstname); |
723 | PL_curstname = Nullsv; | |
a0d0e21e | 724 | |
5a844595 GS |
725 | /* clear queued errors */ |
726 | SvREFCNT_dec(PL_errors); | |
727 | PL_errors = Nullsv; | |
728 | ||
a0d0e21e | 729 | FREETMPS; |
0453d815 | 730 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 731 | if (PL_scopestack_ix != 0) |
9014280d | 732 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 733 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", |
3280af22 NIS |
734 | (long)PL_scopestack_ix); |
735 | if (PL_savestack_ix != 0) | |
9014280d | 736 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 737 | "Unbalanced saves: %ld more saves than restores\n", |
3280af22 NIS |
738 | (long)PL_savestack_ix); |
739 | if (PL_tmps_floor != -1) | |
9014280d | 740 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 741 | (long)PL_tmps_floor + 1); |
a0d0e21e | 742 | if (cxstack_ix != -1) |
9014280d | 743 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 744 | (long)cxstack_ix + 1); |
a0d0e21e | 745 | } |
8990e307 LW |
746 | |
747 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
d33b2eba | 748 | SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */ |
3280af22 | 749 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
5226ed68 JH |
750 | |
751 | /* the 2 is for PL_fdpid and PL_strtab */ | |
752 | while (PL_sv_count > 2 && sv_clean_all()) | |
753 | ; | |
754 | ||
d33b2eba GS |
755 | SvFLAGS(PL_fdpid) &= ~SVTYPEMASK; |
756 | SvFLAGS(PL_fdpid) |= SVt_PVAV; | |
3280af22 NIS |
757 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
758 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
d33b2eba | 759 | |
d4777f27 GS |
760 | AvREAL_off(PL_fdpid); /* no surviving entries */ |
761 | SvREFCNT_dec(PL_fdpid); /* needed in io_close() */ | |
d33b2eba GS |
762 | PL_fdpid = Nullav; |
763 | ||
6c644e78 GS |
764 | #ifdef HAVE_INTERP_INTERN |
765 | sys_intern_clear(); | |
766 | #endif | |
767 | ||
6e72f9df | 768 | /* Destruct the global string table. */ |
769 | { | |
770 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
771 | * so that sv_free() won't fail on them. | |
772 | */ | |
773 | I32 riter; | |
774 | I32 max; | |
775 | HE *hent; | |
776 | HE **array; | |
777 | ||
778 | riter = 0; | |
3280af22 NIS |
779 | max = HvMAX(PL_strtab); |
780 | array = HvARRAY(PL_strtab); | |
6e72f9df | 781 | hent = array[0]; |
782 | for (;;) { | |
0453d815 | 783 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
9014280d | 784 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL), |
0453d815 | 785 | "Unbalanced string table refcount: (%d) for \"%s\"", |
6e72f9df | 786 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
787 | HeVAL(hent) = Nullsv; | |
788 | hent = HeNEXT(hent); | |
789 | } | |
790 | if (!hent) { | |
791 | if (++riter > max) | |
792 | break; | |
793 | hent = array[riter]; | |
794 | } | |
795 | } | |
796 | } | |
3280af22 | 797 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 798 | |
e652bb2f | 799 | #ifdef USE_ITHREADS |
a0739874 DM |
800 | /* free the pointer table used for cloning */ |
801 | ptr_table_free(PL_ptr_table); | |
bf9cdc68 | 802 | PL_ptr_table = (PTR_TBL_t*)NULL; |
53186e96 | 803 | #endif |
a0739874 | 804 | |
d33b2eba GS |
805 | /* free special SVs */ |
806 | ||
807 | SvREFCNT(&PL_sv_yes) = 0; | |
808 | sv_clear(&PL_sv_yes); | |
809 | SvANY(&PL_sv_yes) = NULL; | |
4c5e2b0d | 810 | SvFLAGS(&PL_sv_yes) = 0; |
d33b2eba GS |
811 | |
812 | SvREFCNT(&PL_sv_no) = 0; | |
813 | sv_clear(&PL_sv_no); | |
814 | SvANY(&PL_sv_no) = NULL; | |
4c5e2b0d | 815 | SvFLAGS(&PL_sv_no) = 0; |
01724ea0 | 816 | |
9f375a43 DM |
817 | { |
818 | int i; | |
819 | for (i=0; i<=2; i++) { | |
820 | SvREFCNT(PERL_DEBUG_PAD(i)) = 0; | |
821 | sv_clear(PERL_DEBUG_PAD(i)); | |
822 | SvANY(PERL_DEBUG_PAD(i)) = NULL; | |
823 | SvFLAGS(PERL_DEBUG_PAD(i)) = 0; | |
824 | } | |
825 | } | |
826 | ||
0453d815 | 827 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
9014280d | 828 | Perl_warner(aTHX_ packWARN(WARN_INTERNAL),"Scalars leaked: %ld\n", (long)PL_sv_count); |
6e72f9df | 829 | |
eba0f806 DM |
830 | #ifdef DEBUG_LEAKING_SCALARS |
831 | if (PL_sv_count != 0) { | |
832 | SV* sva; | |
833 | SV* sv; | |
834 | register SV* svend; | |
835 | ||
836 | for (sva = PL_sv_arenaroot; sva; sva = (SV*)SvANY(sva)) { | |
837 | svend = &sva[SvREFCNT(sva)]; | |
838 | for (sv = sva + 1; sv < svend; ++sv) { | |
839 | if (SvTYPE(sv) != SVTYPEMASK) { | |
472d47bc SB |
840 | PerlIO_printf(Perl_debug_log, "leaked: 0x%p" |
841 | pTHX__FORMAT "\n", | |
842 | sv pTHX__VALUE); | |
eba0f806 DM |
843 | } |
844 | } | |
845 | } | |
846 | } | |
847 | #endif | |
bf9cdc68 | 848 | PL_sv_count = 0; |
eba0f806 DM |
849 | |
850 | ||
56a2bab7 | 851 | #if defined(PERLIO_LAYERS) |
3a1ee7e8 NIS |
852 | /* No more IO - including error messages ! */ |
853 | PerlIO_cleanup(aTHX); | |
854 | #endif | |
855 | ||
9f4bd222 NIS |
856 | /* sv_undef needs to stay immortal until after PerlIO_cleanup |
857 | as currently layers use it rather than Nullsv as a marker | |
858 | for no arg - and will try and SvREFCNT_dec it. | |
859 | */ | |
860 | SvREFCNT(&PL_sv_undef) = 0; | |
861 | SvREADONLY_off(&PL_sv_undef); | |
862 | ||
3280af22 | 863 | Safefree(PL_origfilename); |
bf9cdc68 | 864 | PL_origfilename = Nullch; |
3280af22 | 865 | Safefree(PL_reg_start_tmp); |
bf9cdc68 RG |
866 | PL_reg_start_tmp = (char**)NULL; |
867 | PL_reg_start_tmpl = 0; | |
5c5e4c24 IZ |
868 | if (PL_reg_curpm) |
869 | Safefree(PL_reg_curpm); | |
82ba1be6 | 870 | Safefree(PL_reg_poscache); |
dd28f7bb | 871 | free_tied_hv_pool(); |
3280af22 | 872 | Safefree(PL_op_mask); |
cf36064f | 873 | Safefree(PL_psig_ptr); |
bf9cdc68 | 874 | PL_psig_ptr = (SV**)NULL; |
cf36064f | 875 | Safefree(PL_psig_name); |
bf9cdc68 | 876 | PL_psig_name = (SV**)NULL; |
2c2666fc | 877 | Safefree(PL_bitcount); |
bf9cdc68 | 878 | PL_bitcount = Nullch; |
ce08f86c | 879 | Safefree(PL_psig_pend); |
bf9cdc68 RG |
880 | PL_psig_pend = (int*)NULL; |
881 | PL_formfeed = Nullsv; | |
882 | Safefree(PL_ofmt); | |
883 | PL_ofmt = Nullch; | |
6e72f9df | 884 | nuke_stacks(); |
bf9cdc68 RG |
885 | PL_tainting = FALSE; |
886 | PL_taint_warn = FALSE; | |
3280af22 | 887 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
bf9cdc68 | 888 | PL_debug = 0; |
ac27b0f5 | 889 | |
a0d0e21e | 890 | DEBUG_P(debprofdump()); |
d33b2eba | 891 | |
e5dd39fc | 892 | #ifdef USE_REENTRANT_API |
10bc17b6 | 893 | Perl_reentrant_free(aTHX); |
e5dd39fc AB |
894 | #endif |
895 | ||
612f20c3 GS |
896 | sv_free_arenas(); |
897 | ||
fc36a67e | 898 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
899 | ||
3280af22 | 900 | if (PL_mess_sv) { |
9c63abab GS |
901 | /* it could have accumulated taint magic */ |
902 | if (SvTYPE(PL_mess_sv) >= SVt_PVMG) { | |
903 | MAGIC* mg; | |
904 | MAGIC* moremagic; | |
905 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
906 | moremagic = mg->mg_moremagic; | |
14befaf4 DM |
907 | if (mg->mg_ptr && mg->mg_type != PERL_MAGIC_regex_global |
908 | && mg->mg_len >= 0) | |
9c63abab GS |
909 | Safefree(mg->mg_ptr); |
910 | Safefree(mg); | |
911 | } | |
912 | } | |
fc36a67e | 913 | /* we know that type >= SVt_PV */ |
0c34ef67 | 914 | SvOOK_off(PL_mess_sv); |
3280af22 NIS |
915 | Safefree(SvPVX(PL_mess_sv)); |
916 | Safefree(SvANY(PL_mess_sv)); | |
917 | Safefree(PL_mess_sv); | |
918 | PL_mess_sv = Nullsv; | |
fc36a67e | 919 | } |
31d77e54 | 920 | return STATUS_NATIVE_EXPORT; |
79072805 LW |
921 | } |
922 | ||
954c1994 GS |
923 | /* |
924 | =for apidoc perl_free | |
925 | ||
926 | Releases a Perl interpreter. See L<perlembed>. | |
927 | ||
928 | =cut | |
929 | */ | |
930 | ||
79072805 | 931 | void |
0cb96387 | 932 | perl_free(pTHXx) |
79072805 | 933 | { |
acfe0abc | 934 | #if defined(WIN32) || defined(NETWARE) |
ce3e5b80 | 935 | # if defined(PERL_IMPLICIT_SYS) |
acfe0abc GS |
936 | # ifdef NETWARE |
937 | void *host = nw_internal_host; | |
938 | # else | |
939 | void *host = w32_internal_host; | |
940 | # endif | |
ce3e5b80 | 941 | PerlMem_free(aTHXx); |
acfe0abc | 942 | # ifdef NETWARE |
011f1a1a | 943 | nw_delete_internal_host(host); |
acfe0abc GS |
944 | # else |
945 | win32_delete_internal_host(host); | |
946 | # endif | |
1c0ca838 GS |
947 | # else |
948 | PerlMem_free(aTHXx); | |
949 | # endif | |
acfe0abc GS |
950 | #else |
951 | PerlMem_free(aTHXx); | |
76e3520e | 952 | #endif |
79072805 LW |
953 | } |
954 | ||
4b556e6c | 955 | void |
864dbfa3 | 956 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 957 | { |
3280af22 NIS |
958 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
959 | PL_exitlist[PL_exitlistlen].fn = fn; | |
960 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
961 | ++PL_exitlistlen; | |
4b556e6c JD |
962 | } |
963 | ||
954c1994 GS |
964 | /* |
965 | =for apidoc perl_parse | |
966 | ||
967 | Tells a Perl interpreter to parse a Perl script. See L<perlembed>. | |
968 | ||
969 | =cut | |
970 | */ | |
971 | ||
79072805 | 972 | int |
0cb96387 | 973 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 974 | { |
6224f72b | 975 | I32 oldscope; |
6224f72b | 976 | int ret; |
db36c5a1 | 977 | dJMPENV; |
4d1ff10f | 978 | #ifdef USE_5005THREADS |
cea2e8a9 GS |
979 | dTHX; |
980 | #endif | |
8d063cd8 | 981 | |
a687059c LW |
982 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
983 | #ifdef IAMSUID | |
984 | #undef IAMSUID | |
cea2e8a9 | 985 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c | 986 | setuid perl scripts securely.\n"); |
ae3f3efd | 987 | #endif /* IAMSUID */ |
a687059c LW |
988 | #endif |
989 | ||
b0891165 JH |
990 | #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) |
991 | /* [perl #22371] Algorimic Complexity Attack on Perl 5.6.1, 5.8.0 | |
103dd899 | 992 | * This MUST be done before any hash stores or fetches take place. |
008fb0c0 NC |
993 | * If you set PL_rehash_seed (and assumedly also PL_rehash_seed_set) |
994 | * yourself, it is your responsibility to provide a good random seed! | |
830b38bd | 995 | * You can also define PERL_HASH_SEED in compile time, see hv.h. */ |
008fb0c0 NC |
996 | if (!PL_rehash_seed_set) |
997 | PL_rehash_seed = get_hash_seed(); | |
b0891165 | 998 | { |
bed60192 JH |
999 | char *s = PerlEnv_getenv("PERL_HASH_SEED_DEBUG"); |
1000 | ||
1001 | if (s) { | |
1002 | int i = atoi(s); | |
1003 | ||
1004 | if (i == 1) | |
1005 | PerlIO_printf(Perl_debug_log, "HASH_SEED = %"UVuf"\n", | |
008fb0c0 | 1006 | PL_rehash_seed); |
bed60192 | 1007 | } |
b0891165 JH |
1008 | } |
1009 | #endif /* #if defined(USE_HASH_SEED) || defined(USE_HASH_SEED_EXPLICIT) */ | |
1010 | ||
3280af22 | 1011 | PL_origargc = argc; |
e2975953 | 1012 | PL_origargv = argv; |
a0d0e21e | 1013 | |
54bfe034 | 1014 | { |
3cb9023d JH |
1015 | /* Set PL_origalen be the sum of the contiguous argv[] |
1016 | * elements plus the size of the env in case that it is | |
e9137a8e | 1017 | * contiguous with the argv[]. This is used in mg.c:Perl_magic_set() |
3cb9023d JH |
1018 | * as the maximum modifiable length of $0. In the worst case |
1019 | * the area we are able to modify is limited to the size of | |
43c32782 | 1020 | * the original argv[0]. (See below for 'contiguous', though.) |
3cb9023d | 1021 | * --jhi */ |
84458fbf | 1022 | char *s = NULL; |
54bfe034 | 1023 | int i; |
7d8e7db3 JH |
1024 | UV mask = |
1025 | ~(UV)(PTRSIZE == 4 ? 3 : PTRSIZE == 8 ? 7 : PTRSIZE == 16 ? 15 : 0); | |
43c32782 JH |
1026 | /* Do the mask check only if the args seem like aligned. */ |
1027 | UV aligned = | |
1028 | (mask < ~(UV)0) && ((PTR2UV(argv[0]) & mask) == PTR2UV(argv[0])); | |
1029 | ||
1030 | /* See if all the arguments are contiguous in memory. Note | |
1031 | * that 'contiguous' is a loose term because some platforms | |
1032 | * align the argv[] and the envp[]. If the arguments look | |
1033 | * like non-aligned, assume that they are 'strictly' or | |
1034 | * 'traditionally' contiguous. If the arguments look like | |
1035 | * aligned, we just check that they are within aligned | |
1036 | * PTRSIZE bytes. As long as no system has something bizarre | |
1037 | * like the argv[] interleaved with some other data, we are | |
1038 | * fine. (Did I just evoke Murphy's Law?) --jhi */ | |
c8941eeb JH |
1039 | if (PL_origargv && PL_origargc >= 1 && (s = PL_origargv[0])) { |
1040 | while (*s) s++; | |
1041 | for (i = 1; i < PL_origargc; i++) { | |
1042 | if ((PL_origargv[i] == s + 1 | |
43c32782 | 1043 | #ifdef OS2 |
c8941eeb | 1044 | || PL_origargv[i] == s + 2 |
43c32782 | 1045 | #endif |
c8941eeb JH |
1046 | ) |
1047 | || | |
1048 | (aligned && | |
1049 | (PL_origargv[i] > s && | |
1050 | PL_origargv[i] <= | |
1051 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1052 | ) | |
1053 | { | |
1054 | s = PL_origargv[i]; | |
1055 | while (*s) s++; | |
1056 | } | |
1057 | else | |
1058 | break; | |
54bfe034 | 1059 | } |
54bfe034 | 1060 | } |
3cb9023d | 1061 | /* Can we grab env area too to be used as the area for $0? */ |
43c32782 JH |
1062 | if (PL_origenviron) { |
1063 | if ((PL_origenviron[0] == s + 1 | |
1064 | #ifdef OS2 | |
1065 | || (PL_origenviron[0] == s + 9 && (s += 8)) | |
1066 | #endif | |
1067 | ) | |
1068 | || | |
1069 | (aligned && | |
1070 | (PL_origenviron[0] > s && | |
1071 | PL_origenviron[0] <= | |
1072 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1073 | ) | |
1074 | { | |
1075 | #ifndef OS2 | |
1076 | s = PL_origenviron[0]; | |
1077 | while (*s) s++; | |
1078 | #endif | |
1079 | my_setenv("NoNe SuCh", Nullch); | |
1080 | /* Force copy of environment. */ | |
1081 | for (i = 1; PL_origenviron[i]; i++) { | |
1082 | if (PL_origenviron[i] == s + 1 | |
1083 | || | |
1084 | (aligned && | |
1085 | (PL_origenviron[i] > s && | |
1086 | PL_origenviron[i] <= | |
1087 | INT2PTR(char *, PTR2UV(s + PTRSIZE) & mask))) | |
1088 | ) | |
1089 | { | |
1090 | s = PL_origenviron[i]; | |
1091 | while (*s) s++; | |
1092 | } | |
1093 | else | |
1094 | break; | |
54bfe034 | 1095 | } |
43c32782 | 1096 | } |
54bfe034 | 1097 | } |
284e1220 | 1098 | PL_origalen = s - PL_origargv[0] + 1; |
54bfe034 JH |
1099 | } |
1100 | ||
3280af22 | 1101 | if (PL_do_undump) { |
a0d0e21e LW |
1102 | |
1103 | /* Come here if running an undumped a.out. */ | |
1104 | ||
3280af22 NIS |
1105 | PL_origfilename = savepv(argv[0]); |
1106 | PL_do_undump = FALSE; | |
a0d0e21e | 1107 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 1108 | init_ids(); |
a0d0e21e LW |
1109 | init_postdump_symbols(argc,argv,env); |
1110 | return 0; | |
1111 | } | |
1112 | ||
3280af22 | 1113 | if (PL_main_root) { |
3280af22 NIS |
1114 | op_free(PL_main_root); |
1115 | PL_main_root = Nullop; | |
ff0cee69 | 1116 | } |
3280af22 NIS |
1117 | PL_main_start = Nullop; |
1118 | SvREFCNT_dec(PL_main_cv); | |
1119 | PL_main_cv = Nullcv; | |
79072805 | 1120 | |
3280af22 NIS |
1121 | time(&PL_basetime); |
1122 | oldscope = PL_scopestack_ix; | |
599cee73 | 1123 | PL_dowarn = G_WARN_OFF; |
f86702cc | 1124 | |
14dd3ad8 GS |
1125 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
1126 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit); | |
1127 | #else | |
1128 | JMPENV_PUSH(ret); | |
1129 | #endif | |
6224f72b | 1130 | switch (ret) { |
312caa8e | 1131 | case 0: |
14dd3ad8 GS |
1132 | #ifndef PERL_FLEXIBLE_EXCEPTIONS |
1133 | parse_body(env,xsinit); | |
1134 | #endif | |
7d30b5c4 GS |
1135 | if (PL_checkav) |
1136 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1137 | ret = 0; |
1138 | break; | |
6224f72b GS |
1139 | case 1: |
1140 | STATUS_ALL_FAILURE; | |
1141 | /* FALL THROUGH */ | |
1142 | case 2: | |
1143 | /* my_exit() was called */ | |
3280af22 | 1144 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1145 | LEAVE; |
1146 | FREETMPS; | |
3280af22 | 1147 | PL_curstash = PL_defstash; |
7d30b5c4 GS |
1148 | if (PL_checkav) |
1149 | call_list(oldscope, PL_checkav); | |
14dd3ad8 GS |
1150 | ret = STATUS_NATIVE_EXPORT; |
1151 | break; | |
6224f72b | 1152 | case 3: |
bf49b057 | 1153 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
14dd3ad8 GS |
1154 | ret = 1; |
1155 | break; | |
6224f72b | 1156 | } |
14dd3ad8 GS |
1157 | JMPENV_POP; |
1158 | return ret; | |
1159 | } | |
1160 | ||
1161 | #ifdef PERL_FLEXIBLE_EXCEPTIONS | |
1162 | STATIC void * | |
1163 | S_vparse_body(pTHX_ va_list args) | |
1164 | { | |
1165 | char **env = va_arg(args, char**); | |
1166 | XSINIT_t xsinit = va_arg(args, XSINIT_t); | |
1167 | ||
1168 | return parse_body(env, xsinit); | |
312caa8e | 1169 | } |
14dd3ad8 | 1170 | #endif |
312caa8e CS |
1171 | |
1172 | STATIC void * | |
14dd3ad8 | 1173 | S_parse_body(pTHX_ char **env, XSINIT_t xsinit) |
312caa8e | 1174 | { |
312caa8e CS |
1175 | int argc = PL_origargc; |
1176 | char **argv = PL_origargv; | |
312caa8e | 1177 | char *scriptname = NULL; |
312caa8e CS |
1178 | VOL bool dosearch = FALSE; |
1179 | char *validarg = ""; | |
312caa8e CS |
1180 | register SV *sv; |
1181 | register char *s; | |
cf756827 | 1182 | char *cddir = Nullch; |
312caa8e | 1183 | |
ae3f3efd PS |
1184 | PL_fdscript = -1; |
1185 | PL_suidscript = -1; | |
3280af22 | 1186 | sv_setpvn(PL_linestr,"",0); |
79cb57f6 | 1187 | sv = newSVpvn("",0); /* first used for -I flags */ |
6224f72b GS |
1188 | SAVEFREESV(sv); |
1189 | init_main_stash(); | |
54310121 | 1190 | |
6224f72b GS |
1191 | for (argc--,argv++; argc > 0; argc--,argv++) { |
1192 | if (argv[0][0] != '-' || !argv[0][1]) | |
1193 | break; | |
1194 | #ifdef DOSUID | |
1195 | if (*validarg) | |
1196 | validarg = " PHOOEY "; | |
1197 | else | |
1198 | validarg = argv[0]; | |
ae3f3efd PS |
1199 | /* |
1200 | * Can we rely on the kernel to start scripts with argv[1] set to | |
1201 | * contain all #! line switches (the whole line)? (argv[0] is set to | |
1202 | * the interpreter name, argv[2] to the script name; argv[3] and | |
1203 | * above may contain other arguments.) | |
1204 | */ | |
13281fa4 | 1205 | #endif |
6224f72b GS |
1206 | s = argv[0]+1; |
1207 | reswitch: | |
1208 | switch (*s) { | |
729a02f2 | 1209 | case 'C': |
1d5472a9 GS |
1210 | #ifndef PERL_STRICT_CR |
1211 | case '\r': | |
1212 | #endif | |
6224f72b GS |
1213 | case ' ': |
1214 | case '0': | |
1215 | case 'F': | |
1216 | case 'a': | |
1217 | case 'c': | |
1218 | case 'd': | |
1219 | case 'D': | |
1220 | case 'h': | |
1221 | case 'i': | |
1222 | case 'l': | |
1223 | case 'M': | |
1224 | case 'm': | |
1225 | case 'n': | |
1226 | case 'p': | |
1227 | case 's': | |
1228 | case 'u': | |
1229 | case 'U': | |
1230 | case 'v': | |
599cee73 PM |
1231 | case 'W': |
1232 | case 'X': | |
6224f72b | 1233 | case 'w': |
06492da6 | 1234 | case 'A': |
155aba94 | 1235 | if ((s = moreswitches(s))) |
6224f72b GS |
1236 | goto reswitch; |
1237 | break; | |
33b78306 | 1238 | |
1dbad523 | 1239 | case 't': |
22f7c9c9 | 1240 | CHECK_MALLOC_TOO_LATE_FOR('t'); |
317ea90d MS |
1241 | if( !PL_tainting ) { |
1242 | PL_taint_warn = TRUE; | |
1243 | PL_tainting = TRUE; | |
1244 | } | |
1245 | s++; | |
1246 | goto reswitch; | |
6224f72b | 1247 | case 'T': |
22f7c9c9 | 1248 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
3280af22 | 1249 | PL_tainting = TRUE; |
317ea90d | 1250 | PL_taint_warn = FALSE; |
6224f72b GS |
1251 | s++; |
1252 | goto reswitch; | |
f86702cc | 1253 | |
6224f72b | 1254 | case 'e': |
bf4acbe4 GS |
1255 | #ifdef MACOS_TRADITIONAL |
1256 | /* ignore -e for Dev:Pseudo argument */ | |
1257 | if (argv[1] && !strcmp(argv[1], "Dev:Pseudo")) | |
e55ac0fa | 1258 | break; |
bf4acbe4 | 1259 | #endif |
ae3f3efd | 1260 | forbid_setid("-e"); |
3280af22 | 1261 | if (!PL_e_script) { |
79cb57f6 | 1262 | PL_e_script = newSVpvn("",0); |
0cb96387 | 1263 | filter_add(read_e_script, NULL); |
6224f72b GS |
1264 | } |
1265 | if (*++s) | |
3280af22 | 1266 | sv_catpv(PL_e_script, s); |
6224f72b | 1267 | else if (argv[1]) { |
3280af22 | 1268 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
1269 | argc--,argv++; |
1270 | } | |
1271 | else | |
cea2e8a9 | 1272 | Perl_croak(aTHX_ "No code specified for -e"); |
3280af22 | 1273 | sv_catpv(PL_e_script, "\n"); |
6224f72b | 1274 | break; |
afe37c7d | 1275 | |
6224f72b GS |
1276 | case 'I': /* -I handled both here and in moreswitches() */ |
1277 | forbid_setid("-I"); | |
1278 | if (!*++s && (s=argv[1]) != Nullch) { | |
1279 | argc--,argv++; | |
1280 | } | |
6224f72b | 1281 | if (s && *s) { |
0df16ed7 GS |
1282 | char *p; |
1283 | STRLEN len = strlen(s); | |
1284 | p = savepvn(s, len); | |
574c798a | 1285 | incpush(p, TRUE, TRUE, FALSE); |
0df16ed7 GS |
1286 | sv_catpvn(sv, "-I", 2); |
1287 | sv_catpvn(sv, p, len); | |
1288 | sv_catpvn(sv, " ", 1); | |
6224f72b | 1289 | Safefree(p); |
0df16ed7 GS |
1290 | } |
1291 | else | |
a67e862a | 1292 | Perl_croak(aTHX_ "No directory specified for -I"); |
6224f72b GS |
1293 | break; |
1294 | case 'P': | |
1295 | forbid_setid("-P"); | |
3280af22 | 1296 | PL_preprocess = TRUE; |
6224f72b GS |
1297 | s++; |
1298 | goto reswitch; | |
1299 | case 'S': | |
1300 | forbid_setid("-S"); | |
1301 | dosearch = TRUE; | |
1302 | s++; | |
1303 | goto reswitch; | |
1304 | case 'V': | |
3280af22 NIS |
1305 | if (!PL_preambleav) |
1306 | PL_preambleav = newAV(); | |
1307 | av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
6224f72b | 1308 | if (*++s != ':') { |
3280af22 | 1309 | PL_Sv = newSVpv("print myconfig();",0); |
6224f72b | 1310 | #ifdef VMS |
6b88bc9c | 1311 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 1312 | #else |
3280af22 | 1313 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 1314 | #endif |
3280af22 | 1315 | sv_catpv(PL_Sv,"\" Compile-time options:"); |
6224f72b | 1316 | # ifdef DEBUGGING |
3280af22 | 1317 | sv_catpv(PL_Sv," DEBUGGING"); |
6224f72b | 1318 | # endif |
6224f72b | 1319 | # ifdef MULTIPLICITY |
8f872242 | 1320 | sv_catpv(PL_Sv," MULTIPLICITY"); |
6224f72b | 1321 | # endif |
4d1ff10f AB |
1322 | # ifdef USE_5005THREADS |
1323 | sv_catpv(PL_Sv," USE_5005THREADS"); | |
b363f7ed | 1324 | # endif |
ac5e8965 JH |
1325 | # ifdef USE_ITHREADS |
1326 | sv_catpv(PL_Sv," USE_ITHREADS"); | |
1327 | # endif | |
10cc9d2a JH |
1328 | # ifdef USE_64_BIT_INT |
1329 | sv_catpv(PL_Sv," USE_64_BIT_INT"); | |
1330 | # endif | |
1331 | # ifdef USE_64_BIT_ALL | |
1332 | sv_catpv(PL_Sv," USE_64_BIT_ALL"); | |
ac5e8965 JH |
1333 | # endif |
1334 | # ifdef USE_LONG_DOUBLE | |
1335 | sv_catpv(PL_Sv," USE_LONG_DOUBLE"); | |
1336 | # endif | |
53430762 JH |
1337 | # ifdef USE_LARGE_FILES |
1338 | sv_catpv(PL_Sv," USE_LARGE_FILES"); | |
1339 | # endif | |
ac5e8965 JH |
1340 | # ifdef USE_SOCKS |
1341 | sv_catpv(PL_Sv," USE_SOCKS"); | |
1342 | # endif | |
b363f7ed GS |
1343 | # ifdef PERL_IMPLICIT_CONTEXT |
1344 | sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT"); | |
1345 | # endif | |
1346 | # ifdef PERL_IMPLICIT_SYS | |
1347 | sv_catpv(PL_Sv," PERL_IMPLICIT_SYS"); | |
1348 | # endif | |
3280af22 | 1349 | sv_catpv(PL_Sv,"\\n\","); |
b363f7ed | 1350 | |
6224f72b GS |
1351 | #if defined(LOCAL_PATCH_COUNT) |
1352 | if (LOCAL_PATCH_COUNT > 0) { | |
1353 | int i; | |
3280af22 | 1354 | sv_catpv(PL_Sv,"\" Locally applied patches:\\n\","); |
6224f72b | 1355 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
3280af22 | 1356 | if (PL_localpatches[i]) |
acb03d05 AB |
1357 | Perl_sv_catpvf(aTHX_ PL_Sv,"q%c\t%s\n%c,", |
1358 | 0, PL_localpatches[i], 0); | |
6224f72b GS |
1359 | } |
1360 | } | |
1361 | #endif | |
cea2e8a9 | 1362 | Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME); |
6224f72b GS |
1363 | #ifdef __DATE__ |
1364 | # ifdef __TIME__ | |
cea2e8a9 | 1365 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6224f72b | 1366 | # else |
cea2e8a9 | 1367 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__); |
6224f72b GS |
1368 | # endif |
1369 | #endif | |
3280af22 | 1370 | sv_catpv(PL_Sv, "; \ |
6224f72b | 1371 | $\"=\"\\n \"; \ |
69fcd688 JH |
1372 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; "); |
1373 | #ifdef __CYGWIN__ | |
1374 | sv_catpv(PL_Sv,"\ | |
1375 | push @env, \"CYGWIN=\\\"$ENV{CYGWIN}\\\"\";"); | |
1376 | #endif | |
1377 | sv_catpv(PL_Sv, "\ | |
6224f72b GS |
1378 | print \" \\%ENV:\\n @env\\n\" if @env; \ |
1379 | print \" \\@INC:\\n @INC\\n\";"); | |
1380 | } | |
1381 | else { | |
3280af22 NIS |
1382 | PL_Sv = newSVpv("config_vars(qw(",0); |
1383 | sv_catpv(PL_Sv, ++s); | |
1384 | sv_catpv(PL_Sv, "))"); | |
6224f72b GS |
1385 | s += strlen(s); |
1386 | } | |
3280af22 | 1387 | av_push(PL_preambleav, PL_Sv); |
6224f72b GS |
1388 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
1389 | goto reswitch; | |
1390 | case 'x': | |
3280af22 | 1391 | PL_doextract = TRUE; |
6224f72b GS |
1392 | s++; |
1393 | if (*s) | |
f4c556ac | 1394 | cddir = s; |
6224f72b GS |
1395 | break; |
1396 | case 0: | |
1397 | break; | |
1398 | case '-': | |
1399 | if (!*++s || isSPACE(*s)) { | |
1400 | argc--,argv++; | |
1401 | goto switch_end; | |
1402 | } | |
1403 | /* catch use of gnu style long options */ | |
1404 | if (strEQ(s, "version")) { | |
1405 | s = "v"; | |
1406 | goto reswitch; | |
1407 | } | |
1408 | if (strEQ(s, "help")) { | |
1409 | s = "h"; | |
1410 | goto reswitch; | |
1411 | } | |
1412 | s--; | |
1413 | /* FALL THROUGH */ | |
1414 | default: | |
cea2e8a9 | 1415 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
1416 | } |
1417 | } | |
6224f72b | 1418 | switch_end: |
54310121 | 1419 | |
f675dbe5 CB |
1420 | if ( |
1421 | #ifndef SECURE_INTERNAL_GETENV | |
1422 | !PL_tainting && | |
1423 | #endif | |
cf756827 | 1424 | (s = PerlEnv_getenv("PERL5OPT"))) |
0df16ed7 | 1425 | { |
cf756827 | 1426 | char *popt = s; |
74288ac8 GS |
1427 | while (isSPACE(*s)) |
1428 | s++; | |
317ea90d | 1429 | if (*s == '-' && *(s+1) == 'T') { |
22f7c9c9 | 1430 | CHECK_MALLOC_TOO_LATE_FOR('T'); |
74288ac8 | 1431 | PL_tainting = TRUE; |
317ea90d MS |
1432 | PL_taint_warn = FALSE; |
1433 | } | |
74288ac8 | 1434 | else { |
cf756827 | 1435 | char *popt_copy = Nullch; |
74288ac8 | 1436 | while (s && *s) { |
4ea8f8fb | 1437 | char *d; |
74288ac8 GS |
1438 | while (isSPACE(*s)) |
1439 | s++; | |
1440 | if (*s == '-') { | |
1441 | s++; | |
1442 | if (isSPACE(*s)) | |
1443 | continue; | |
1444 | } | |
4ea8f8fb | 1445 | d = s; |
74288ac8 GS |
1446 | if (!*s) |
1447 | break; | |
06492da6 | 1448 | if (!strchr("DIMUdmtwA", *s)) |
cea2e8a9 | 1449 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
4ea8f8fb MS |
1450 | while (++s && *s) { |
1451 | if (isSPACE(*s)) { | |
cf756827 GS |
1452 | if (!popt_copy) { |
1453 | popt_copy = SvPVX(sv_2mortal(newSVpv(popt,0))); | |
1454 | s = popt_copy + (s - popt); | |
1455 | d = popt_copy + (d - popt); | |
1456 | } | |
4ea8f8fb MS |
1457 | *s++ = '\0'; |
1458 | break; | |
1459 | } | |
1460 | } | |
1c4db469 | 1461 | if (*d == 't') { |
317ea90d MS |
1462 | if( !PL_tainting ) { |
1463 | PL_taint_warn = TRUE; | |
1464 | PL_tainting = TRUE; | |
1465 | } | |
1c4db469 RGS |
1466 | } else { |
1467 | moreswitches(d); | |
1468 | } | |
6224f72b | 1469 | } |
6224f72b GS |
1470 | } |
1471 | } | |
a0d0e21e | 1472 | |
317ea90d MS |
1473 | if (PL_taint_warn && PL_dowarn != G_WARN_ALL_OFF) { |
1474 | PL_compiling.cop_warnings = newSVpvn(WARN_TAINTstring, WARNsize); | |
1475 | } | |
1476 | ||
6224f72b GS |
1477 | if (!scriptname) |
1478 | scriptname = argv[0]; | |
3280af22 | 1479 | if (PL_e_script) { |
6224f72b GS |
1480 | argc++,argv--; |
1481 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
1482 | } | |
1483 | else if (scriptname == Nullch) { | |
1484 | #ifdef MSDOS | |
1485 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
1486 | moreswitches("h"); | |
1487 | #endif | |
1488 | scriptname = "-"; | |
1489 | } | |
1490 | ||
1491 | init_perllib(); | |
1492 | ||
c5cccb17 | 1493 | open_script(scriptname,dosearch,sv); |
6224f72b | 1494 | |
c5cccb17 | 1495 | validate_suid(validarg, scriptname); |
6224f72b | 1496 | |
64ca3a65 | 1497 | #ifndef PERL_MICRO |
0b5b802d GS |
1498 | #if defined(SIGCHLD) || defined(SIGCLD) |
1499 | { | |
1500 | #ifndef SIGCHLD | |
1501 | # define SIGCHLD SIGCLD | |
1502 | #endif | |
1503 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
1504 | if (sigstate == SIG_IGN) { | |
1505 | if (ckWARN(WARN_SIGNAL)) | |
9014280d | 1506 | Perl_warner(aTHX_ packWARN(WARN_SIGNAL), |
0b5b802d GS |
1507 | "Can't ignore signal CHLD, forcing to default"); |
1508 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
1509 | } | |
1510 | } | |
1511 | #endif | |
64ca3a65 | 1512 | #endif |
0b5b802d | 1513 | |
bf4acbe4 GS |
1514 | #ifdef MACOS_TRADITIONAL |
1515 | if (PL_doextract || gMacPerl_AlwaysExtract) { | |
1516 | #else | |
f4c556ac | 1517 | if (PL_doextract) { |
bf4acbe4 | 1518 | #endif |
6224f72b | 1519 | find_beginning(); |
f4c556ac GS |
1520 | if (cddir && PerlDir_chdir(cddir) < 0) |
1521 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
1522 | ||
1523 | } | |
6224f72b | 1524 | |
3280af22 NIS |
1525 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
1526 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); | |
1527 | CvUNIQUE_on(PL_compcv); | |
1528 | ||
dd2155a4 | 1529 | CvPADLIST(PL_compcv) = pad_new(0); |
4d1ff10f | 1530 | #ifdef USE_5005THREADS |
533c011a NIS |
1531 | CvOWNER(PL_compcv) = 0; |
1532 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
1533 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
4d1ff10f | 1534 | #endif /* USE_5005THREADS */ |
6224f72b | 1535 | |
0c4f7ff0 | 1536 | boot_core_PerlIO(); |
6224f72b | 1537 | boot_core_UNIVERSAL(); |
09bef843 | 1538 | boot_core_xsutils(); |
6224f72b GS |
1539 | |
1540 | if (xsinit) | |
acfe0abc | 1541 | (*xsinit)(aTHX); /* in case linked C routines want magical variables */ |
64ca3a65 | 1542 | #ifndef PERL_MICRO |
ed79a026 | 1543 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__) || defined(EPOC) |
c5be433b | 1544 | init_os_extras(); |
6224f72b | 1545 | #endif |
64ca3a65 | 1546 | #endif |
6224f72b | 1547 | |
29209bc5 | 1548 | #ifdef USE_SOCKS |
1b9c9cf5 DH |
1549 | # ifdef HAS_SOCKS5_INIT |
1550 | socks5_init(argv[0]); | |
1551 | # else | |
29209bc5 | 1552 | SOCKSinit(argv[0]); |
1b9c9cf5 | 1553 | # endif |
ac27b0f5 | 1554 | #endif |
29209bc5 | 1555 | |
6224f72b GS |
1556 | init_predump_symbols(); |
1557 | /* init_postdump_symbols not currently designed to be called */ | |
1558 | /* more than once (ENV isn't cleared first, for example) */ | |
1559 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 1560 | if (!PL_do_undump) |
6224f72b GS |
1561 | init_postdump_symbols(argc,argv,env); |
1562 | ||
a05d7ebb JH |
1563 | /* PL_unicode is turned on by -C or by $ENV{PERL_UNICODE}. |
1564 | * PL_utf8locale is conditionally turned on by | |
085a54d9 | 1565 | * locale.c:Perl_init_i18nl10n() if the environment |
a05d7ebb | 1566 | * look like the user wants to use UTF-8. */ |
06e66572 JH |
1567 | if (PL_unicode) { |
1568 | /* Requires init_predump_symbols(). */ | |
a05d7ebb | 1569 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
06e66572 JH |
1570 | IO* io; |
1571 | PerlIO* fp; | |
1572 | SV* sv; | |
1573 | ||
a05d7ebb | 1574 | /* Turn on UTF-8-ness on STDIN, STDOUT, STDERR |
06e66572 | 1575 | * and the default open disciplines. */ |
a05d7ebb JH |
1576 | if ((PL_unicode & PERL_UNICODE_STDIN_FLAG) && |
1577 | PL_stdingv && (io = GvIO(PL_stdingv)) && | |
1578 | (fp = IoIFP(io))) | |
1579 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
1580 | if ((PL_unicode & PERL_UNICODE_STDOUT_FLAG) && | |
1581 | PL_defoutgv && (io = GvIO(PL_defoutgv)) && | |
1582 | (fp = IoOFP(io))) | |
1583 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
1584 | if ((PL_unicode & PERL_UNICODE_STDERR_FLAG) && | |
1585 | PL_stderrgv && (io = GvIO(PL_stderrgv)) && | |
1586 | (fp = IoOFP(io))) | |
1587 | PerlIO_binmode(aTHX_ fp, IoTYPE(io), 0, ":utf8"); | |
1588 | if ((PL_unicode & PERL_UNICODE_INOUT_FLAG) && | |
1589 | (sv = GvSV(gv_fetchpv("\017PEN", TRUE, SVt_PV)))) { | |
1590 | U32 in = PL_unicode & PERL_UNICODE_IN_FLAG; | |
1591 | U32 out = PL_unicode & PERL_UNICODE_OUT_FLAG; | |
1592 | if (in) { | |
1593 | if (out) | |
1594 | sv_setpvn(sv, ":utf8\0:utf8", 11); | |
1595 | else | |
1596 | sv_setpvn(sv, ":utf8\0", 6); | |
1597 | } | |
1598 | else if (out) | |
1599 | sv_setpvn(sv, "\0:utf8", 6); | |
1600 | SvSETMAGIC(sv); | |
1601 | } | |
b310b053 JH |
1602 | } |
1603 | } | |
1604 | ||
4ffa73a3 JH |
1605 | if ((s = PerlEnv_getenv("PERL_SIGNALS"))) { |
1606 | if (strEQ(s, "unsafe")) | |
1607 | PL_signals |= PERL_SIGNALS_UNSAFE_FLAG; | |
1608 | else if (strEQ(s, "safe")) | |
1609 | PL_signals &= ~PERL_SIGNALS_UNSAFE_FLAG; | |
1610 | else | |
1611 | Perl_croak(aTHX_ "PERL_SIGNALS illegal: \"%s\"", s); | |
1612 | } | |
1613 | ||
6224f72b GS |
1614 | init_lexer(); |
1615 | ||
1616 | /* now parse the script */ | |
1617 | ||
93189314 | 1618 | SETERRNO(0,SS_NORMAL); |
3280af22 | 1619 | PL_error_count = 0; |
bf4acbe4 GS |
1620 | #ifdef MACOS_TRADITIONAL |
1621 | if (gMacPerl_SyntaxError = (yyparse() || PL_error_count)) { | |
1622 | if (PL_minus_c) | |
1623 | Perl_croak(aTHX_ "%s had compilation errors.\n", MacPerl_MPWFileName(PL_origfilename)); | |
1624 | else { | |
1625 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", | |
1626 | MacPerl_MPWFileName(PL_origfilename)); | |
1627 | } | |
1628 | } | |
1629 | #else | |
3280af22 NIS |
1630 | if (yyparse() || PL_error_count) { |
1631 | if (PL_minus_c) | |
cea2e8a9 | 1632 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 1633 | else { |
cea2e8a9 | 1634 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 1635 | PL_origfilename); |
6224f72b GS |
1636 | } |
1637 | } | |
bf4acbe4 | 1638 | #endif |
57843af0 | 1639 | CopLINE_set(PL_curcop, 0); |
3280af22 NIS |
1640 | PL_curstash = PL_defstash; |
1641 | PL_preprocess = FALSE; | |
1642 | if (PL_e_script) { | |
1643 | SvREFCNT_dec(PL_e_script); | |
1644 | PL_e_script = Nullsv; | |
6224f72b GS |
1645 | } |
1646 | ||
3280af22 | 1647 | if (PL_do_undump) |
6224f72b GS |
1648 | my_unexec(); |
1649 | ||
57843af0 GS |
1650 | if (isWARN_ONCE) { |
1651 | SAVECOPFILE(PL_curcop); | |
1652 | SAVECOPLINE(PL_curcop); | |
3280af22 | 1653 | gv_check(PL_defstash); |
57843af0 | 1654 | } |
6224f72b GS |
1655 | |
1656 | LEAVE; | |
1657 | FREETMPS; | |
1658 | ||
1659 | #ifdef MYMALLOC | |
1660 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
1661 | dump_mstats("after compilation:"); | |
1662 | #endif | |
1663 | ||
1664 | ENTER; | |
3280af22 | 1665 | PL_restartop = 0; |
312caa8e | 1666 | return NULL; |
6224f72b GS |
1667 | } |
1668 | ||
954c1994 GS |
1669 | /* |
1670 | =for apidoc perl_run | |
1671 | ||
1672 | Tells a Perl interpreter to run. See L<perlembed>. | |
1673 | ||
1674 | =cut | |
1675 | */ | |
1676 | ||
6224f72b | 1677 | int |
0cb96387 | 1678 | perl_run(pTHXx) |
6224f72b | 1679 | { |
6224f72b | 1680 | I32 oldscope; |
14dd3ad8 | 1681 | int ret = 0; |
db36c5a1 | 1682 | dJMPENV; |
4d1ff10f | 1683 | #ifdef USE_5005THREADS |
cea2e8a9 GS |
1684 | dTHX; |
1685 | #endif | |
6224f72b | 1686 | |
3280af22 | 1687 | oldscope = PL_scopestack_ix; |
96e176bf CL |
1688 | #ifdef VMS |
1689 | VMSISH_HUSHED = 0; | |
1690 | #endif | |
6224f72b | 1691 | |
14dd3ad8 | 1692 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 1693 | redo_body: |
14dd3ad8 GS |
1694 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope); |
1695 | #else | |
1696 | JMPENV_PUSH(ret); | |
1697 | #endif | |
6224f72b GS |
1698 | switch (ret) { |
1699 | case 1: | |
1700 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e | 1701 | goto redo_body; |
14dd3ad8 GS |
1702 | case 0: /* normal completion */ |
1703 | #ifndef PERL_FLEXIBLE_EXCEPTIONS | |
1704 | redo_body: | |
1705 | run_body(oldscope); | |
1706 | #endif | |
1707 | /* FALL THROUGH */ | |
1708 | case 2: /* my_exit() */ | |
3280af22 | 1709 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1710 | LEAVE; |
1711 | FREETMPS; | |
3280af22 | 1712 | PL_curstash = PL_defstash; |
3a1ee7e8 | 1713 | if (!(PL_exit_flags & PERL_EXIT_DESTRUCT_END) && |
31d77e54 AB |
1714 | PL_endav && !PL_minus_c) |
1715 | call_list(oldscope, PL_endav); | |
6224f72b GS |
1716 | #ifdef MYMALLOC |
1717 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
1718 | dump_mstats("after execution: "); | |
1719 | #endif | |
14dd3ad8 GS |
1720 | ret = STATUS_NATIVE_EXPORT; |
1721 | break; | |
6224f72b | 1722 | case 3: |
312caa8e CS |
1723 | if (PL_restartop) { |
1724 | POPSTACK_TO(PL_mainstack); | |
1725 | goto redo_body; | |
6224f72b | 1726 | } |
bf49b057 | 1727 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e | 1728 | FREETMPS; |
14dd3ad8 GS |
1729 | ret = 1; |
1730 | break; | |
6224f72b GS |
1731 | } |
1732 | ||
14dd3ad8 GS |
1733 | JMPENV_POP; |
1734 | return ret; | |
312caa8e CS |
1735 | } |
1736 | ||
14dd3ad8 | 1737 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 1738 | STATIC void * |
14dd3ad8 | 1739 | S_vrun_body(pTHX_ va_list args) |
312caa8e | 1740 | { |
312caa8e CS |
1741 | I32 oldscope = va_arg(args, I32); |
1742 | ||
14dd3ad8 GS |
1743 | return run_body(oldscope); |
1744 | } | |
1745 | #endif | |
1746 | ||
1747 | ||
1748 | STATIC void * | |
1749 | S_run_body(pTHX_ I32 oldscope) | |
1750 | { | |
6224f72b | 1751 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 1752 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 1753 | |
3280af22 | 1754 | if (!PL_restartop) { |
6224f72b | 1755 | DEBUG_x(dump_all()); |
ecae49c0 NC |
1756 | if (!DEBUG_q_TEST) |
1757 | PERL_DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
b900a521 JH |
1758 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
1759 | PTR2UV(thr))); | |
6224f72b | 1760 | |
3280af22 | 1761 | if (PL_minus_c) { |
bf4acbe4 | 1762 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
1763 | PerlIO_printf(Perl_error_log, "%s%s syntax OK\n", |
1764 | (gMacPerl_ErrorFormat ? "# " : ""), | |
1765 | MacPerl_MPWFileName(PL_origfilename)); | |
bf4acbe4 | 1766 | #else |
bf49b057 | 1767 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
bf4acbe4 | 1768 | #endif |
6224f72b GS |
1769 | my_exit(0); |
1770 | } | |
3280af22 | 1771 | if (PERLDB_SINGLE && PL_DBsingle) |
ac27b0f5 | 1772 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
1773 | if (PL_initav) |
1774 | call_list(oldscope, PL_initav); | |
6224f72b GS |
1775 | } |
1776 | ||
1777 | /* do it */ | |
1778 | ||
3280af22 | 1779 | if (PL_restartop) { |
533c011a | 1780 | PL_op = PL_restartop; |
3280af22 | 1781 | PL_restartop = 0; |
cea2e8a9 | 1782 | CALLRUNOPS(aTHX); |
6224f72b | 1783 | } |
3280af22 NIS |
1784 | else if (PL_main_start) { |
1785 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 1786 | PL_op = PL_main_start; |
cea2e8a9 | 1787 | CALLRUNOPS(aTHX); |
6224f72b GS |
1788 | } |
1789 | ||
f6b3007c JH |
1790 | my_exit(0); |
1791 | /* NOTREACHED */ | |
312caa8e | 1792 | return NULL; |
6224f72b GS |
1793 | } |
1794 | ||
954c1994 | 1795 | /* |
ccfc67b7 JH |
1796 | =head1 SV Manipulation Functions |
1797 | ||
954c1994 GS |
1798 | =for apidoc p||get_sv |
1799 | ||
1800 | Returns the SV of the specified Perl scalar. If C<create> is set and the | |
1801 | Perl variable does not exist then it will be created. If C<create> is not | |
1802 | set and the variable does not exist then NULL is returned. | |
1803 | ||
1804 | =cut | |
1805 | */ | |
1806 | ||
6224f72b | 1807 | SV* |
864dbfa3 | 1808 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
1809 | { |
1810 | GV *gv; | |
4d1ff10f | 1811 | #ifdef USE_5005THREADS |
6224f72b GS |
1812 | if (name[1] == '\0' && !isALPHA(name[0])) { |
1813 | PADOFFSET tmp = find_threadsv(name); | |
411caa50 | 1814 | if (tmp != NOT_IN_PAD) |
6224f72b | 1815 | return THREADSV(tmp); |
6224f72b | 1816 | } |
4d1ff10f | 1817 | #endif /* USE_5005THREADS */ |
6224f72b GS |
1818 | gv = gv_fetchpv(name, create, SVt_PV); |
1819 | if (gv) | |
1820 | return GvSV(gv); | |
1821 | return Nullsv; | |
1822 | } | |
1823 | ||
954c1994 | 1824 | /* |
ccfc67b7 JH |
1825 | =head1 Array Manipulation Functions |
1826 | ||
954c1994 GS |
1827 | =for apidoc p||get_av |
1828 | ||
1829 | Returns the AV of the specified Perl array. If C<create> is set and the | |
1830 | Perl variable does not exist then it will be created. If C<create> is not | |
1831 | set and the variable does not exist then NULL is returned. | |
1832 | ||
1833 | =cut | |
1834 | */ | |
1835 | ||
6224f72b | 1836 | AV* |
864dbfa3 | 1837 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b GS |
1838 | { |
1839 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
1840 | if (create) | |
1841 | return GvAVn(gv); | |
1842 | if (gv) | |
1843 | return GvAV(gv); | |
1844 | return Nullav; | |
1845 | } | |
1846 | ||
954c1994 | 1847 | /* |
ccfc67b7 JH |
1848 | =head1 Hash Manipulation Functions |
1849 | ||
954c1994 GS |
1850 | =for apidoc p||get_hv |
1851 | ||
1852 | Returns the HV of the specified Perl hash. If C<create> is set and the | |
1853 | Perl variable does not exist then it will be created. If C<create> is not | |
1854 | set and the variable does not exist then NULL is returned. | |
1855 | ||
1856 | =cut | |
1857 | */ | |
1858 | ||
6224f72b | 1859 | HV* |
864dbfa3 | 1860 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 1861 | { |
a0d0e21e LW |
1862 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
1863 | if (create) | |
1864 | return GvHVn(gv); | |
1865 | if (gv) | |
1866 | return GvHV(gv); | |
1867 | return Nullhv; | |
1868 | } | |
1869 | ||
954c1994 | 1870 | /* |
ccfc67b7 JH |
1871 | =head1 CV Manipulation Functions |
1872 | ||
954c1994 GS |
1873 | =for apidoc p||get_cv |
1874 | ||
1875 | Returns the CV of the specified Perl subroutine. If C<create> is set and | |
1876 | the Perl subroutine does not exist then it will be declared (which has the | |
1877 | same effect as saying C<sub name;>). If C<create> is not set and the | |
1878 | subroutine does not exist then NULL is returned. | |
1879 | ||
1880 | =cut | |
1881 | */ | |
1882 | ||
a0d0e21e | 1883 | CV* |
864dbfa3 | 1884 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e LW |
1885 | { |
1886 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
b099ddc0 | 1887 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 GS |
1888 | /* XXX this is probably not what they think they're getting. |
1889 | * It has the same effect as "sub name;", i.e. just a forward | |
1890 | * declaration! */ | |
8ebc5c01 | 1891 | if (create && !GvCVu(gv)) |
774d564b | 1892 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 1893 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 1894 | Nullop, |
a0d0e21e LW |
1895 | Nullop); |
1896 | if (gv) | |
8ebc5c01 | 1897 | return GvCVu(gv); |
a0d0e21e LW |
1898 | return Nullcv; |
1899 | } | |
1900 | ||
79072805 LW |
1901 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1902 | ||
954c1994 | 1903 | /* |
ccfc67b7 JH |
1904 | |
1905 | =head1 Callback Functions | |
1906 | ||
954c1994 GS |
1907 | =for apidoc p||call_argv |
1908 | ||
1909 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
1910 | ||
1911 | =cut | |
1912 | */ | |
1913 | ||
a0d0e21e | 1914 | I32 |
864dbfa3 | 1915 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
ac27b0f5 | 1916 | |
8ac85365 NIS |
1917 | /* See G_* flags in cop.h */ |
1918 | /* null terminated arg list */ | |
8990e307 | 1919 | { |
a0d0e21e | 1920 | dSP; |
8990e307 | 1921 | |
924508f0 | 1922 | PUSHMARK(SP); |
a0d0e21e | 1923 | if (argv) { |
8990e307 | 1924 | while (*argv) { |
a0d0e21e | 1925 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
1926 | argv++; |
1927 | } | |
a0d0e21e | 1928 | PUTBACK; |
8990e307 | 1929 | } |
864dbfa3 | 1930 | return call_pv(sub_name, flags); |
8990e307 LW |
1931 | } |
1932 | ||
954c1994 GS |
1933 | /* |
1934 | =for apidoc p||call_pv | |
1935 | ||
1936 | Performs a callback to the specified Perl sub. See L<perlcall>. | |
1937 | ||
1938 | =cut | |
1939 | */ | |
1940 | ||
a0d0e21e | 1941 | I32 |
864dbfa3 | 1942 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
1943 | /* name of the subroutine */ |
1944 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1945 | { |
864dbfa3 | 1946 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
1947 | } |
1948 | ||
954c1994 GS |
1949 | /* |
1950 | =for apidoc p||call_method | |
1951 | ||
1952 | Performs a callback to the specified Perl method. The blessed object must | |
1953 | be on the stack. See L<perlcall>. | |
1954 | ||
1955 | =cut | |
1956 | */ | |
1957 | ||
a0d0e21e | 1958 | I32 |
864dbfa3 | 1959 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
1960 | /* name of the subroutine */ |
1961 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1962 | { |
968b3946 | 1963 | return call_sv(sv_2mortal(newSVpv(methname,0)), flags | G_METHOD); |
a0d0e21e LW |
1964 | } |
1965 | ||
1966 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
954c1994 GS |
1967 | /* |
1968 | =for apidoc p||call_sv | |
1969 | ||
1970 | Performs a callback to the Perl sub whose name is in the SV. See | |
1971 | L<perlcall>. | |
1972 | ||
1973 | =cut | |
1974 | */ | |
1975 | ||
a0d0e21e | 1976 | I32 |
864dbfa3 | 1977 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 | 1978 | /* See G_* flags in cop.h */ |
a0d0e21e | 1979 | { |
924508f0 | 1980 | dSP; |
a0d0e21e | 1981 | LOGOP myop; /* fake syntax tree node */ |
968b3946 | 1982 | UNOP method_op; |
aa689395 | 1983 | I32 oldmark; |
13689cfe | 1984 | volatile I32 retval = 0; |
a0d0e21e | 1985 | I32 oldscope; |
54310121 | 1986 | bool oldcatch = CATCH_GET; |
6224f72b | 1987 | int ret; |
533c011a | 1988 | OP* oldop = PL_op; |
db36c5a1 | 1989 | dJMPENV; |
1e422769 | 1990 | |
a0d0e21e LW |
1991 | if (flags & G_DISCARD) { |
1992 | ENTER; | |
1993 | SAVETMPS; | |
1994 | } | |
1995 | ||
aa689395 | 1996 | Zero(&myop, 1, LOGOP); |
54310121 | 1997 | myop.op_next = Nullop; |
f51d4af5 | 1998 | if (!(flags & G_NOARGS)) |
aa689395 | 1999 | myop.op_flags |= OPf_STACKED; |
54310121 | 2000 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2001 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2002 | OPf_WANT_SCALAR); | |
462e5cf6 | 2003 | SAVEOP(); |
533c011a | 2004 | PL_op = (OP*)&myop; |
aa689395 | 2005 | |
3280af22 NIS |
2006 | EXTEND(PL_stack_sp, 1); |
2007 | *++PL_stack_sp = sv; | |
aa689395 | 2008 | oldmark = TOPMARK; |
3280af22 | 2009 | oldscope = PL_scopestack_ix; |
a0d0e21e | 2010 | |
3280af22 | 2011 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 2012 | /* Handle first BEGIN of -d. */ |
3280af22 | 2013 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 2014 | /* Try harder, since this may have been a sighandler, thus |
2015 | * curstash may be meaningless. */ | |
3280af22 | 2016 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 2017 | && !(flags & G_NODEBUG)) |
533c011a | 2018 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 2019 | |
968b3946 GS |
2020 | if (flags & G_METHOD) { |
2021 | Zero(&method_op, 1, UNOP); | |
2022 | method_op.op_next = PL_op; | |
2023 | method_op.op_ppaddr = PL_ppaddr[OP_METHOD]; | |
2024 | myop.op_ppaddr = PL_ppaddr[OP_ENTERSUB]; | |
f39d0b86 | 2025 | PL_op = (OP*)&method_op; |
968b3946 GS |
2026 | } |
2027 | ||
312caa8e | 2028 | if (!(flags & G_EVAL)) { |
0cdb2077 | 2029 | CATCH_SET(TRUE); |
14dd3ad8 | 2030 | call_body((OP*)&myop, FALSE); |
312caa8e | 2031 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 2032 | CATCH_SET(oldcatch); |
312caa8e CS |
2033 | } |
2034 | else { | |
d78bda3d | 2035 | myop.op_other = (OP*)&myop; |
3280af22 | 2036 | PL_markstack_ptr--; |
4633a7c4 LW |
2037 | /* we're trying to emulate pp_entertry() here */ |
2038 | { | |
c09156bb | 2039 | register PERL_CONTEXT *cx; |
54310121 | 2040 | I32 gimme = GIMME_V; |
ac27b0f5 | 2041 | |
4633a7c4 LW |
2042 | ENTER; |
2043 | SAVETMPS; | |
ac27b0f5 | 2044 | |
1d76a5c3 | 2045 | PUSHBLOCK(cx, (CXt_EVAL|CXp_TRYBLOCK), PL_stack_sp); |
4633a7c4 | 2046 | PUSHEVAL(cx, 0, 0); |
533c011a | 2047 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
ac27b0f5 | 2048 | |
faef0170 | 2049 | PL_in_eval = EVAL_INEVAL; |
4633a7c4 | 2050 | if (flags & G_KEEPERR) |
faef0170 | 2051 | PL_in_eval |= EVAL_KEEPERR; |
4633a7c4 | 2052 | else |
38a03e6e | 2053 | sv_setpv(ERRSV,""); |
4633a7c4 | 2054 | } |
3280af22 | 2055 | PL_markstack_ptr++; |
a0d0e21e | 2056 | |
14dd3ad8 GS |
2057 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
2058 | redo_body: | |
2059 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body), | |
db36c5a1 | 2060 | (OP*)&myop, FALSE); |
14dd3ad8 GS |
2061 | #else |
2062 | JMPENV_PUSH(ret); | |
2063 | #endif | |
6224f72b GS |
2064 | switch (ret) { |
2065 | case 0: | |
14dd3ad8 GS |
2066 | #ifndef PERL_FLEXIBLE_EXCEPTIONS |
2067 | redo_body: | |
2068 | call_body((OP*)&myop, FALSE); | |
2069 | #endif | |
312caa8e CS |
2070 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2071 | if (!(flags & G_KEEPERR)) | |
2072 | sv_setpv(ERRSV,""); | |
a0d0e21e | 2073 | break; |
6224f72b | 2074 | case 1: |
f86702cc | 2075 | STATUS_ALL_FAILURE; |
a0d0e21e | 2076 | /* FALL THROUGH */ |
6224f72b | 2077 | case 2: |
a0d0e21e | 2078 | /* my_exit() was called */ |
3280af22 | 2079 | PL_curstash = PL_defstash; |
a0d0e21e | 2080 | FREETMPS; |
14dd3ad8 | 2081 | JMPENV_POP; |
cc3604b1 | 2082 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2083 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2084 | my_exit_jump(); |
a0d0e21e | 2085 | /* NOTREACHED */ |
6224f72b | 2086 | case 3: |
3280af22 | 2087 | if (PL_restartop) { |
533c011a | 2088 | PL_op = PL_restartop; |
3280af22 | 2089 | PL_restartop = 0; |
312caa8e | 2090 | goto redo_body; |
a0d0e21e | 2091 | } |
3280af22 | 2092 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2093 | if (flags & G_ARRAY) |
2094 | retval = 0; | |
2095 | else { | |
2096 | retval = 1; | |
3280af22 | 2097 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 2098 | } |
312caa8e | 2099 | break; |
a0d0e21e | 2100 | } |
a0d0e21e | 2101 | |
3280af22 | 2102 | if (PL_scopestack_ix > oldscope) { |
a0a2876f LW |
2103 | SV **newsp; |
2104 | PMOP *newpm; | |
2105 | I32 gimme; | |
c09156bb | 2106 | register PERL_CONTEXT *cx; |
a0a2876f LW |
2107 | I32 optype; |
2108 | ||
2109 | POPBLOCK(cx,newpm); | |
2110 | POPEVAL(cx); | |
3280af22 | 2111 | PL_curpm = newpm; |
a0a2876f | 2112 | LEAVE; |
a0d0e21e | 2113 | } |
14dd3ad8 | 2114 | JMPENV_POP; |
a0d0e21e | 2115 | } |
1e422769 | 2116 | |
a0d0e21e | 2117 | if (flags & G_DISCARD) { |
3280af22 | 2118 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
2119 | retval = 0; |
2120 | FREETMPS; | |
2121 | LEAVE; | |
2122 | } | |
533c011a | 2123 | PL_op = oldop; |
a0d0e21e LW |
2124 | return retval; |
2125 | } | |
2126 | ||
14dd3ad8 | 2127 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 2128 | STATIC void * |
14dd3ad8 | 2129 | S_vcall_body(pTHX_ va_list args) |
312caa8e CS |
2130 | { |
2131 | OP *myop = va_arg(args, OP*); | |
2132 | int is_eval = va_arg(args, int); | |
2133 | ||
14dd3ad8 | 2134 | call_body(myop, is_eval); |
312caa8e CS |
2135 | return NULL; |
2136 | } | |
14dd3ad8 | 2137 | #endif |
312caa8e CS |
2138 | |
2139 | STATIC void | |
14dd3ad8 | 2140 | S_call_body(pTHX_ OP *myop, int is_eval) |
312caa8e | 2141 | { |
312caa8e CS |
2142 | if (PL_op == myop) { |
2143 | if (is_eval) | |
f807eda9 | 2144 | PL_op = Perl_pp_entereval(aTHX); /* this doesn't do a POPMARK */ |
312caa8e | 2145 | else |
f807eda9 | 2146 | PL_op = Perl_pp_entersub(aTHX); /* this does */ |
312caa8e CS |
2147 | } |
2148 | if (PL_op) | |
cea2e8a9 | 2149 | CALLRUNOPS(aTHX); |
312caa8e CS |
2150 | } |
2151 | ||
6e72f9df | 2152 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 2153 | |
954c1994 GS |
2154 | /* |
2155 | =for apidoc p||eval_sv | |
2156 | ||
2157 | Tells Perl to C<eval> the string in the SV. | |
2158 | ||
2159 | =cut | |
2160 | */ | |
2161 | ||
a0d0e21e | 2162 | I32 |
864dbfa3 | 2163 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
ac27b0f5 | 2164 | |
8ac85365 | 2165 | /* See G_* flags in cop.h */ |
a0d0e21e | 2166 | { |
924508f0 | 2167 | dSP; |
a0d0e21e | 2168 | UNOP myop; /* fake syntax tree node */ |
8fa7f367 | 2169 | volatile I32 oldmark = SP - PL_stack_base; |
13689cfe | 2170 | volatile I32 retval = 0; |
4633a7c4 | 2171 | I32 oldscope; |
6224f72b | 2172 | int ret; |
533c011a | 2173 | OP* oldop = PL_op; |
db36c5a1 | 2174 | dJMPENV; |
84902520 | 2175 | |
4633a7c4 LW |
2176 | if (flags & G_DISCARD) { |
2177 | ENTER; | |
2178 | SAVETMPS; | |
2179 | } | |
2180 | ||
462e5cf6 | 2181 | SAVEOP(); |
533c011a NIS |
2182 | PL_op = (OP*)&myop; |
2183 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
2184 | EXTEND(PL_stack_sp, 1); |
2185 | *++PL_stack_sp = sv; | |
2186 | oldscope = PL_scopestack_ix; | |
79072805 | 2187 | |
4633a7c4 LW |
2188 | if (!(flags & G_NOARGS)) |
2189 | myop.op_flags = OPf_STACKED; | |
79072805 | 2190 | myop.op_next = Nullop; |
6e72f9df | 2191 | myop.op_type = OP_ENTEREVAL; |
54310121 | 2192 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
2193 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
2194 | OPf_WANT_SCALAR); | |
6e72f9df | 2195 | if (flags & G_KEEPERR) |
2196 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 2197 | |
14dd3ad8 | 2198 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 2199 | redo_body: |
14dd3ad8 | 2200 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body), |
db36c5a1 | 2201 | (OP*)&myop, TRUE); |
14dd3ad8 | 2202 | #else |
dedbcade DM |
2203 | /* fail now; otherwise we could fail after the JMPENV_PUSH but |
2204 | * before a PUSHEVAL, which corrupts the stack after a croak */ | |
2205 | TAINT_PROPER("eval_sv()"); | |
2206 | ||
14dd3ad8 GS |
2207 | JMPENV_PUSH(ret); |
2208 | #endif | |
6224f72b GS |
2209 | switch (ret) { |
2210 | case 0: | |
14dd3ad8 GS |
2211 | #ifndef PERL_FLEXIBLE_EXCEPTIONS |
2212 | redo_body: | |
2213 | call_body((OP*)&myop,TRUE); | |
2214 | #endif | |
312caa8e CS |
2215 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
2216 | if (!(flags & G_KEEPERR)) | |
2217 | sv_setpv(ERRSV,""); | |
4633a7c4 | 2218 | break; |
6224f72b | 2219 | case 1: |
f86702cc | 2220 | STATUS_ALL_FAILURE; |
4633a7c4 | 2221 | /* FALL THROUGH */ |
6224f72b | 2222 | case 2: |
4633a7c4 | 2223 | /* my_exit() was called */ |
3280af22 | 2224 | PL_curstash = PL_defstash; |
4633a7c4 | 2225 | FREETMPS; |
14dd3ad8 | 2226 | JMPENV_POP; |
cc3604b1 | 2227 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) |
cea2e8a9 | 2228 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 2229 | my_exit_jump(); |
4633a7c4 | 2230 | /* NOTREACHED */ |
6224f72b | 2231 | case 3: |
3280af22 | 2232 | if (PL_restartop) { |
533c011a | 2233 | PL_op = PL_restartop; |
3280af22 | 2234 | PL_restartop = 0; |
312caa8e | 2235 | goto redo_body; |
4633a7c4 | 2236 | } |
3280af22 | 2237 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2238 | if (flags & G_ARRAY) |
2239 | retval = 0; | |
2240 | else { | |
2241 | retval = 1; | |
3280af22 | 2242 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 2243 | } |
312caa8e | 2244 | break; |
4633a7c4 LW |
2245 | } |
2246 | ||
14dd3ad8 | 2247 | JMPENV_POP; |
4633a7c4 | 2248 | if (flags & G_DISCARD) { |
3280af22 | 2249 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
2250 | retval = 0; |
2251 | FREETMPS; | |
2252 | LEAVE; | |
2253 | } | |
533c011a | 2254 | PL_op = oldop; |
4633a7c4 LW |
2255 | return retval; |
2256 | } | |
2257 | ||
954c1994 GS |
2258 | /* |
2259 | =for apidoc p||eval_pv | |
2260 | ||
2261 | Tells Perl to C<eval> the given string and return an SV* result. | |
2262 | ||
2263 | =cut | |
2264 | */ | |
2265 | ||
137443ea | 2266 | SV* |
864dbfa3 | 2267 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 2268 | { |
2269 | dSP; | |
2270 | SV* sv = newSVpv(p, 0); | |
2271 | ||
864dbfa3 | 2272 | eval_sv(sv, G_SCALAR); |
137443ea | 2273 | SvREFCNT_dec(sv); |
2274 | ||
2275 | SPAGAIN; | |
2276 | sv = POPs; | |
2277 | PUTBACK; | |
2278 | ||
2d8e6c8d GS |
2279 | if (croak_on_error && SvTRUE(ERRSV)) { |
2280 | STRLEN n_a; | |
cea2e8a9 | 2281 | Perl_croak(aTHX_ SvPVx(ERRSV, n_a)); |
2d8e6c8d | 2282 | } |
137443ea | 2283 | |
2284 | return sv; | |
2285 | } | |
2286 | ||
4633a7c4 LW |
2287 | /* Require a module. */ |
2288 | ||
954c1994 | 2289 | /* |
ccfc67b7 JH |
2290 | =head1 Embedding Functions |
2291 | ||
954c1994 GS |
2292 | =for apidoc p||require_pv |
2293 | ||
7d3fb230 BS |
2294 | Tells Perl to C<require> the file named by the string argument. It is |
2295 | analogous to the Perl code C<eval "require '$file'">. It's even | |
2307c6d0 | 2296 | implemented that way; consider using load_module instead. |
954c1994 | 2297 | |
7d3fb230 | 2298 | =cut */ |
954c1994 | 2299 | |
4633a7c4 | 2300 | void |
864dbfa3 | 2301 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 2302 | { |
d3acc0f7 JP |
2303 | SV* sv; |
2304 | dSP; | |
e788e7d3 | 2305 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 JP |
2306 | PUTBACK; |
2307 | sv = sv_newmortal(); | |
4633a7c4 LW |
2308 | sv_setpv(sv, "require '"); |
2309 | sv_catpv(sv, pv); | |
2310 | sv_catpv(sv, "'"); | |
864dbfa3 | 2311 | eval_sv(sv, G_DISCARD); |
d3acc0f7 JP |
2312 | SPAGAIN; |
2313 | POPSTACK; | |
79072805 LW |
2314 | } |
2315 | ||
79072805 | 2316 | void |
864dbfa3 | 2317 | Perl_magicname(pTHX_ char *sym, char *name, I32 namlen) |
79072805 LW |
2318 | { |
2319 | register GV *gv; | |
2320 | ||
155aba94 | 2321 | if ((gv = gv_fetchpv(sym,TRUE, SVt_PV))) |
14befaf4 | 2322 | sv_magic(GvSV(gv), (SV*)gv, PERL_MAGIC_sv, name, namlen); |
79072805 LW |
2323 | } |
2324 | ||
76e3520e | 2325 | STATIC void |
cea2e8a9 | 2326 | S_usage(pTHX_ char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 2327 | { |
ab821d7f | 2328 | /* This message really ought to be max 23 lines. |
75c72d73 | 2329 | * Removed -h because the user already knows that option. Others? */ |
fb73857a | 2330 | |
76e3520e | 2331 | static char *usage_msg[] = { |
fb73857a | 2332 | "-0[octal] specify record separator (\\0, if no argument)", |
2333 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
fb3560ee | 2334 | "-C[number/list] enables the listed Unicode features", |
1950ee41 | 2335 | "-c check syntax only (runs BEGIN and CHECK blocks)", |
aac3bd0d GS |
2336 | "-d[:debugger] run program under debugger", |
2337 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
90490ea3 | 2338 | "-e program one line of program (several -e's allowed, omit programfile)", |
aac3bd0d GS |
2339 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", |
2340 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
2341 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
fb73857a | 2342 | "-l[octal] enable line ending processing, specifies line terminator", |
aac3bd0d GS |
2343 | "-[mM][-]module execute `use/no module...' before executing program", |
2344 | "-n assume 'while (<>) { ... }' loop around program", | |
2345 | "-p assume loop like -n but print line also, like sed", | |
2346 | "-P run program through C preprocessor before compilation", | |
2347 | "-s enable rudimentary parsing for switches after programfile", | |
2348 | "-S look for programfile using PATH environment variable", | |
9cbc33e8 | 2349 | "-t enable tainting warnings", |
90490ea3 | 2350 | "-T enable tainting checks", |
aac3bd0d | 2351 | "-u dump core after parsing program", |
fb73857a | 2352 | "-U allow unsafe operations", |
aac3bd0d GS |
2353 | "-v print version, subversion (includes VERY IMPORTANT perl info)", |
2354 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
2355 | "-w enable many useful warnings (RECOMMENDED)", | |
3c0facb2 | 2356 | "-W enable all warnings", |
fb73857a | 2357 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", |
90490ea3 | 2358 | "-X disable all warnings", |
fb73857a | 2359 | "\n", |
2360 | NULL | |
2361 | }; | |
76e3520e | 2362 | char **p = usage_msg; |
fb73857a | 2363 | |
b0e47665 GS |
2364 | PerlIO_printf(PerlIO_stdout(), |
2365 | "\nUsage: %s [switches] [--] [programfile] [arguments]", | |
2366 | name); | |
fb73857a | 2367 | while (*p) |
b0e47665 | 2368 | PerlIO_printf(PerlIO_stdout(), "\n %s", *p++); |
4633a7c4 LW |
2369 | } |
2370 | ||
b4ab917c DM |
2371 | /* convert a string of -D options (or digits) into an int. |
2372 | * sets *s to point to the char after the options */ | |
2373 | ||
2374 | #ifdef DEBUGGING | |
2375 | int | |
ddcf8bc1 | 2376 | Perl_get_debug_opts(pTHX_ char **s, bool givehelp) |
b4ab917c | 2377 | { |
e6e64d9b JC |
2378 | static char *usage_msgd[] = { |
2379 | " Debugging flag values: (see also -d)", | |
2380 | " p Tokenizing and parsing (with v, displays parse stack)", | |
3679267a | 2381 | " s Stack snapshots (with v, displays all stacks)", |
e6e64d9b JC |
2382 | " l Context (loop) stack processing", |
2383 | " t Trace execution", | |
2384 | " o Method and overloading resolution", | |
2385 | " c String/numeric conversions", | |
2386 | " P Print profiling info, preprocessor command for -P, source file input state", | |
2387 | " m Memory allocation", | |
2388 | " f Format processing", | |
2389 | " r Regular expression parsing and execution", | |
2390 | " x Syntax tree dump", | |
3679267a | 2391 | " u Tainting checks", |
e6e64d9b JC |
2392 | " H Hash dump -- usurps values()", |
2393 | " X Scratchpad allocation", | |
2394 | " D Cleaning up", | |
2395 | " S Thread synchronization", | |
2396 | " T Tokenising", | |
2397 | " R Include reference counts of dumped variables (eg when using -Ds)", | |
2398 | " J Do not s,t,P-debug (Jump over) opcodes within package DB", | |
2399 | " v Verbose: use in conjunction with other flags", | |
2400 | " C Copy On Write", | |
2401 | " A Consistency checks on internal structures", | |
3679267a | 2402 | " q quiet - currently only suppresses the 'EXECUTING' message", |
e6e64d9b JC |
2403 | NULL |
2404 | }; | |
b4ab917c DM |
2405 | int i = 0; |
2406 | if (isALPHA(**s)) { | |
2407 | /* if adding extra options, remember to update DEBUG_MASK */ | |
ecae49c0 | 2408 | static char debopts[] = "psltocPmfrxu HXDSTRJvCAq"; |
b4ab917c DM |
2409 | |
2410 | for (; isALNUM(**s); (*s)++) { | |
2411 | char *d = strchr(debopts,**s); | |
2412 | if (d) | |
2413 | i |= 1 << (d - debopts); | |
2414 | else if (ckWARN_d(WARN_DEBUGGING)) | |
e6e64d9b JC |
2415 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
2416 | "invalid option -D%c, use -D'' to see choices\n", **s); | |
b4ab917c DM |
2417 | } |
2418 | } | |
e6e64d9b | 2419 | else if (isDIGIT(**s)) { |
b4ab917c DM |
2420 | i = atoi(*s); |
2421 | for (; isALNUM(**s); (*s)++) ; | |
2422 | } | |
ddcf8bc1 | 2423 | else if (givehelp) { |
e6e64d9b JC |
2424 | char **p = usage_msgd; |
2425 | while (*p) PerlIO_printf(PerlIO_stdout(), "%s\n", *p++); | |
2426 | } | |
b4ab917c DM |
2427 | # ifdef EBCDIC |
2428 | if ((i & DEBUG_p_FLAG) && ckWARN_d(WARN_DEBUGGING)) | |
2429 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), | |
2430 | "-Dp not implemented on this platform\n"); | |
2431 | # endif | |
2432 | return i; | |
2433 | } | |
2434 | #endif | |
2435 | ||
79072805 LW |
2436 | /* This routine handles any switches that can be given during run */ |
2437 | ||
2438 | char * | |
864dbfa3 | 2439 | Perl_moreswitches(pTHX_ char *s) |
79072805 | 2440 | { |
ba210ebe | 2441 | STRLEN numlen; |
84c133a0 | 2442 | UV rschar; |
79072805 LW |
2443 | |
2444 | switch (*s) { | |
2445 | case '0': | |
a863c7d1 | 2446 | { |
f2095865 JH |
2447 | I32 flags = 0; |
2448 | ||
2449 | SvREFCNT_dec(PL_rs); | |
2450 | if (s[1] == 'x' && s[2]) { | |
2451 | char *e; | |
2452 | U8 *tmps; | |
2453 | ||
2454 | for (s += 2, e = s; *e; e++); | |
2455 | numlen = e - s; | |
2456 | flags = PERL_SCAN_SILENT_ILLDIGIT; | |
2457 | rschar = (U32)grok_hex(s, &numlen, &flags, NULL); | |
2458 | if (s + numlen < e) { | |
2459 | rschar = 0; /* Grandfather -0xFOO as -0 -xFOO. */ | |
2460 | numlen = 0; | |
2461 | s--; | |
2462 | } | |
2463 | PL_rs = newSVpvn("", 0); | |
c5661c80 | 2464 | SvGROW(PL_rs, (STRLEN)(UNISKIP(rschar) + 1)); |
f2095865 JH |
2465 | tmps = (U8*)SvPVX(PL_rs); |
2466 | uvchr_to_utf8(tmps, rschar); | |
2467 | SvCUR_set(PL_rs, UNISKIP(rschar)); | |
2468 | SvUTF8_on(PL_rs); | |
2469 | } | |
2470 | else { | |
2471 | numlen = 4; | |
2472 | rschar = (U32)grok_oct(s, &numlen, &flags, NULL); | |
2473 | if (rschar & ~((U8)~0)) | |
2474 | PL_rs = &PL_sv_undef; | |
2475 | else if (!rschar && numlen >= 2) | |
2476 | PL_rs = newSVpvn("", 0); | |
2477 | else { | |
2478 | char ch = (char)rschar; | |
2479 | PL_rs = newSVpvn(&ch, 1); | |
2480 | } | |
2481 | } | |
800633c3 | 2482 | sv_setsv(get_sv("/", TRUE), PL_rs); |
f2095865 | 2483 | return s + numlen; |
a863c7d1 | 2484 | } |
46487f74 | 2485 | case 'C': |
a05d7ebb JH |
2486 | s++; |
2487 | PL_unicode = parse_unicode_opts(&s); | |
46487f74 | 2488 | return s; |
2304df62 | 2489 | case 'F': |
3280af22 | 2490 | PL_minus_F = TRUE; |
ebce5377 RGS |
2491 | PL_splitstr = ++s; |
2492 | while (*s && !isSPACE(*s)) ++s; | |
2493 | *s = '\0'; | |
2494 | PL_splitstr = savepv(PL_splitstr); | |
2304df62 | 2495 | return s; |
79072805 | 2496 | case 'a': |
3280af22 | 2497 | PL_minus_a = TRUE; |
79072805 LW |
2498 | s++; |
2499 | return s; | |
2500 | case 'c': | |
3280af22 | 2501 | PL_minus_c = TRUE; |
79072805 LW |
2502 | s++; |
2503 | return s; | |
2504 | case 'd': | |
bbce6d69 | 2505 | forbid_setid("-d"); |
4633a7c4 | 2506 | s++; |
2cbb2ee1 RGS |
2507 | |
2508 | /* -dt indicates to the debugger that threads will be used */ | |
2509 | if (*s == 't' && !isALNUM(s[1])) { | |
2510 | ++s; | |
2511 | my_setenv("PERL5DB_THREADED", "1"); | |
2512 | } | |
2513 | ||
70c94a19 RR |
2514 | /* The following permits -d:Mod to accepts arguments following an = |
2515 | in the fashion that -MSome::Mod does. */ | |
2516 | if (*s == ':' || *s == '=') { | |
2517 | char *start; | |
2518 | SV *sv; | |
2519 | sv = newSVpv("use Devel::", 0); | |
2520 | start = ++s; | |
2521 | /* We now allow -d:Module=Foo,Bar */ | |
2522 | while(isALNUM(*s) || *s==':') ++s; | |
2523 | if (*s != '=') | |
2524 | sv_catpv(sv, start); | |
2525 | else { | |
2526 | sv_catpvn(sv, start, s-start); | |
2527 | sv_catpv(sv, " split(/,/,q{"); | |
2528 | sv_catpv(sv, ++s); | |
3d27e215 | 2529 | sv_catpv(sv, "})"); |
70c94a19 | 2530 | } |
4633a7c4 | 2531 | s += strlen(s); |
70c94a19 | 2532 | my_setenv("PERL5DB", SvPV(sv, PL_na)); |
4633a7c4 | 2533 | } |
ed094faf | 2534 | if (!PL_perldb) { |
3280af22 | 2535 | PL_perldb = PERLDB_ALL; |
a0d0e21e | 2536 | init_debugger(); |
ed094faf | 2537 | } |
79072805 LW |
2538 | return s; |
2539 | case 'D': | |
0453d815 | 2540 | { |
79072805 | 2541 | #ifdef DEBUGGING |
bbce6d69 | 2542 | forbid_setid("-D"); |
b4ab917c | 2543 | s++; |
ddcf8bc1 | 2544 | PL_debug = get_debug_opts(&s, 1) | DEBUG_TOP_FLAG; |
12a43e32 | 2545 | #else /* !DEBUGGING */ |
0453d815 | 2546 | if (ckWARN_d(WARN_DEBUGGING)) |
9014280d | 2547 | Perl_warner(aTHX_ packWARN(WARN_DEBUGGING), |
e6e64d9b | 2548 | "Recompile perl with -DDEBUGGING to use -D switch (did you mean -d ?)\n"); |
a0d0e21e | 2549 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
2550 | #endif |
2551 | /*SUPPRESS 530*/ | |
2552 | return s; | |
0453d815 | 2553 | } |
4633a7c4 | 2554 | case 'h': |
ac27b0f5 | 2555 | usage(PL_origargv[0]); |
7ca617d0 | 2556 | my_exit(0); |
79072805 | 2557 | case 'i': |
3280af22 NIS |
2558 | if (PL_inplace) |
2559 | Safefree(PL_inplace); | |
c030f24b GH |
2560 | #if defined(__CYGWIN__) /* do backup extension automagically */ |
2561 | if (*(s+1) == '\0') { | |
2562 | PL_inplace = savepv(".bak"); | |
2563 | return s+1; | |
2564 | } | |
2565 | #endif /* __CYGWIN__ */ | |
3280af22 | 2566 | PL_inplace = savepv(s+1); |
79072805 | 2567 | /*SUPPRESS 530*/ |
3280af22 | 2568 | for (s = PL_inplace; *s && !isSPACE(*s); s++) ; |
7b8d334a | 2569 | if (*s) { |
fb73857a | 2570 | *s++ = '\0'; |
7b8d334a GS |
2571 | if (*s == '-') /* Additional switches on #! line. */ |
2572 | s++; | |
2573 | } | |
fb73857a | 2574 | return s; |
4e49a025 | 2575 | case 'I': /* -I handled both here and in parse_body() */ |
bbce6d69 | 2576 | forbid_setid("-I"); |
fb73857a | 2577 | ++s; |
2578 | while (*s && isSPACE(*s)) | |
2579 | ++s; | |
2580 | if (*s) { | |
774d564b | 2581 | char *e, *p; |
0df16ed7 GS |
2582 | p = s; |
2583 | /* ignore trailing spaces (possibly followed by other switches) */ | |
2584 | do { | |
2585 | for (e = p; *e && !isSPACE(*e); e++) ; | |
2586 | p = e; | |
2587 | while (isSPACE(*p)) | |
2588 | p++; | |
2589 | } while (*p && *p != '-'); | |
2590 | e = savepvn(s, e-s); | |
574c798a | 2591 | incpush(e, TRUE, TRUE, FALSE); |
0df16ed7 GS |
2592 | Safefree(e); |
2593 | s = p; | |
2594 | if (*s == '-') | |
2595 | s++; | |
79072805 LW |
2596 | } |
2597 | else | |
a67e862a | 2598 | Perl_croak(aTHX_ "No directory specified for -I"); |
fb73857a | 2599 | return s; |
79072805 | 2600 | case 'l': |
3280af22 | 2601 | PL_minus_l = TRUE; |
79072805 | 2602 | s++; |
7889fe52 NIS |
2603 | if (PL_ors_sv) { |
2604 | SvREFCNT_dec(PL_ors_sv); | |
2605 | PL_ors_sv = Nullsv; | |
2606 | } | |
79072805 | 2607 | if (isDIGIT(*s)) { |
53305cf1 | 2608 | I32 flags = 0; |
7889fe52 | 2609 | PL_ors_sv = newSVpvn("\n",1); |
53305cf1 NC |
2610 | numlen = 3 + (*s == '0'); |
2611 | *SvPVX(PL_ors_sv) = (char)grok_oct(s, &numlen, &flags, NULL); | |
79072805 LW |
2612 | s += numlen; |
2613 | } | |
2614 | else { | |
8bfdd7d9 | 2615 | if (RsPARA(PL_rs)) { |
7889fe52 NIS |
2616 | PL_ors_sv = newSVpvn("\n\n",2); |
2617 | } | |
2618 | else { | |
8bfdd7d9 | 2619 | PL_ors_sv = newSVsv(PL_rs); |
c07a80fd | 2620 | } |
79072805 LW |
2621 | } |
2622 | return s; | |
06492da6 SF |
2623 | case 'A': |
2624 | forbid_setid("-A"); | |
930366bd RGS |
2625 | if (!PL_preambleav) |
2626 | PL_preambleav = newAV(); | |
06492da6 | 2627 | if (*++s) { |
3d27e215 LM |
2628 | SV *sv = newSVpv("use assertions::activate split(/,/,q", 0); |
2629 | sv_catpvn(sv, "\0", 1); /* Use NUL as q//-delimiter. */ | |
06492da6 | 2630 | sv_catpv(sv,s); |
3d27e215 | 2631 | sv_catpvn(sv, "\0)", 2); |
06492da6 | 2632 | s+=strlen(s); |
06492da6 SF |
2633 | av_push(PL_preambleav, sv); |
2634 | } | |
2635 | else | |
930366bd | 2636 | av_push(PL_preambleav, newSVpvn("use assertions::activate",24)); |
06492da6 | 2637 | return s; |
1a30305b | 2638 | case 'M': |
bbce6d69 | 2639 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 2640 | /* FALL THROUGH */ |
2641 | case 'm': | |
bbce6d69 | 2642 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 2643 | if (*++s) { |
a5f75d66 | 2644 | char *start; |
11343788 | 2645 | SV *sv; |
a5f75d66 AD |
2646 | char *use = "use "; |
2647 | /* -M-foo == 'no foo' */ | |
2648 | if (*s == '-') { use = "no "; ++s; } | |
11343788 | 2649 | sv = newSVpv(use,0); |
a5f75d66 | 2650 | start = s; |
1a30305b | 2651 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 2652 | while(isALNUM(*s) || *s==':') ++s; |
2653 | if (*s != '=') { | |
11343788 | 2654 | sv_catpv(sv, start); |
c07a80fd | 2655 | if (*(start-1) == 'm') { |
2656 | if (*s != '\0') | |
cea2e8a9 | 2657 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
11343788 | 2658 | sv_catpv( sv, " ()"); |
c07a80fd | 2659 | } |
2660 | } else { | |
6df41af2 | 2661 | if (s == start) |
be98fb35 GS |
2662 | Perl_croak(aTHX_ "Module name required with -%c option", |
2663 | s[-1]); | |
11343788 | 2664 | sv_catpvn(sv, start, s-start); |
3d27e215 LM |
2665 | sv_catpv(sv, " split(/,/,q"); |
2666 | sv_catpvn(sv, "\0)", 1); /* Use NUL as q//-delimiter. */ | |
11343788 | 2667 | sv_catpv(sv, ++s); |
3d27e215 | 2668 | sv_catpvn(sv, "\0)", 2); |
c07a80fd | 2669 | } |
1a30305b | 2670 | s += strlen(s); |
5c831c24 | 2671 | if (!PL_preambleav) |
3280af22 NIS |
2672 | PL_preambleav = newAV(); |
2673 | av_push(PL_preambleav, sv); | |
1a30305b | 2674 | } |
2675 | else | |
cea2e8a9 | 2676 | Perl_croak(aTHX_ "No space allowed after -%c", *(s-1)); |
1a30305b | 2677 | return s; |
79072805 | 2678 | case 'n': |
3280af22 | 2679 | PL_minus_n = TRUE; |
79072805 LW |
2680 | s++; |
2681 | return s; | |
2682 | case 'p': | |
3280af22 | 2683 | PL_minus_p = TRUE; |
79072805 LW |
2684 | s++; |
2685 | return s; | |
2686 | case 's': | |
bbce6d69 | 2687 | forbid_setid("-s"); |
3280af22 | 2688 | PL_doswitches = TRUE; |
79072805 LW |
2689 | s++; |
2690 | return s; | |
6537fe72 MS |
2691 | case 't': |
2692 | if (!PL_tainting) | |
22f7c9c9 | 2693 | TOO_LATE_FOR('t'); |
6537fe72 MS |
2694 | s++; |
2695 | return s; | |
463ee0b2 | 2696 | case 'T': |
3280af22 | 2697 | if (!PL_tainting) |
22f7c9c9 | 2698 | TOO_LATE_FOR('T'); |
463ee0b2 LW |
2699 | s++; |
2700 | return s; | |
79072805 | 2701 | case 'u': |
bf4acbe4 GS |
2702 | #ifdef MACOS_TRADITIONAL |
2703 | Perl_croak(aTHX_ "Believe me, you don't want to use \"-u\" on a Macintosh"); | |
2704 | #endif | |
3280af22 | 2705 | PL_do_undump = TRUE; |
79072805 LW |
2706 | s++; |
2707 | return s; | |
2708 | case 'U': | |
3280af22 | 2709 | PL_unsafe = TRUE; |
79072805 LW |
2710 | s++; |
2711 | return s; | |
2712 | case 'v': | |
d7aa5382 JP |
2713 | if (!sv_derived_from(PL_patchlevel, "version")) |
2714 | (void *)upg_version(PL_patchlevel); | |
8e9464f1 | 2715 | #if !defined(DGUX) |
b0e47665 | 2716 | PerlIO_printf(PerlIO_stdout(), |
d7aa5382 JP |
2717 | Perl_form(aTHX_ "\nThis is perl, v%_ built for %s", |
2718 | vstringify(PL_patchlevel), | |
2719 | ARCHNAME)); | |
8e9464f1 JH |
2720 | #else /* DGUX */ |
2721 | /* Adjust verbose output as in the perl that ships with the DG/UX OS from EMC */ | |
2722 | PerlIO_printf(PerlIO_stdout(), | |
d7aa5382 JP |
2723 | Perl_form(aTHX_ "\nThis is perl, v%_\n", |
2724 | vstringify(PL_patchlevel))); | |
8e9464f1 JH |
2725 | PerlIO_printf(PerlIO_stdout(), |
2726 | Perl_form(aTHX_ " built under %s at %s %s\n", | |
2727 | OSNAME, __DATE__, __TIME__)); | |
2728 | PerlIO_printf(PerlIO_stdout(), | |
2729 | Perl_form(aTHX_ " OS Specific Release: %s\n", | |
40a39f85 | 2730 | OSVERS)); |
8e9464f1 JH |
2731 | #endif /* !DGUX */ |
2732 | ||
fb73857a | 2733 | #if defined(LOCAL_PATCH_COUNT) |
2734 | if (LOCAL_PATCH_COUNT > 0) | |
b0e47665 GS |
2735 | PerlIO_printf(PerlIO_stdout(), |
2736 | "\n(with %d registered patch%s, " | |
2737 | "see perl -V for more detail)", | |
2738 | (int)LOCAL_PATCH_COUNT, | |
2739 | (LOCAL_PATCH_COUNT!=1) ? "es" : ""); | |
a5f75d66 | 2740 | #endif |
1a30305b | 2741 | |
b0e47665 | 2742 | PerlIO_printf(PerlIO_stdout(), |
45a2796c | 2743 | "\n\nCopyright 1987-2004, Larry Wall\n"); |
eae9c151 JH |
2744 | #ifdef MACOS_TRADITIONAL |
2745 | PerlIO_printf(PerlIO_stdout(), | |
be3c0a43 | 2746 | "\nMac OS port Copyright 1991-2002, Matthias Neeracher;\n" |
03765510 | 2747 | "maintained by Chris Nandor\n"); |
eae9c151 | 2748 | #endif |
79072805 | 2749 | #ifdef MSDOS |
b0e47665 GS |
2750 | PerlIO_printf(PerlIO_stdout(), |
2751 | "\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); | |
55497cff | 2752 | #endif |
2753 | #ifdef DJGPP | |
b0e47665 GS |
2754 | PerlIO_printf(PerlIO_stdout(), |
2755 | "djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n" | |
2756 | "djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); | |
4633a7c4 | 2757 | #endif |
79072805 | 2758 | #ifdef OS2 |
b0e47665 GS |
2759 | PerlIO_printf(PerlIO_stdout(), |
2760 | "\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" | |
be3c0a43 | 2761 | "Version 5 port Copyright (c) 1994-2002, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 2762 | #endif |
79072805 | 2763 | #ifdef atarist |
b0e47665 GS |
2764 | PerlIO_printf(PerlIO_stdout(), |
2765 | "atariST series port, ++jrb bammi@cadence.com\n"); | |
79072805 | 2766 | #endif |
a3f9223b | 2767 | #ifdef __BEOS__ |
b0e47665 GS |
2768 | PerlIO_printf(PerlIO_stdout(), |
2769 | "BeOS port Copyright Tom Spindler, 1997-1999\n"); | |
a3f9223b | 2770 | #endif |
1d84e8df | 2771 | #ifdef MPE |
b0e47665 | 2772 | PerlIO_printf(PerlIO_stdout(), |
e583a879 | 2773 | "MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-2003\n"); |
1d84e8df | 2774 | #endif |
9d116dd7 | 2775 | #ifdef OEMVS |
b0e47665 GS |
2776 | PerlIO_printf(PerlIO_stdout(), |
2777 | "MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); | |
9d116dd7 | 2778 | #endif |
495c5fdc | 2779 | #ifdef __VOS__ |
b0e47665 | 2780 | PerlIO_printf(PerlIO_stdout(), |
94efb9fb | 2781 | "Stratus VOS port by Paul.Green@stratus.com, 1997-2002\n"); |
495c5fdc | 2782 | #endif |
092bebab | 2783 | #ifdef __OPEN_VM |
b0e47665 GS |
2784 | PerlIO_printf(PerlIO_stdout(), |
2785 | "VM/ESA port by Neale Ferguson, 1998-1999\n"); | |
092bebab | 2786 | #endif |
a1a0e61e | 2787 | #ifdef POSIX_BC |
b0e47665 GS |
2788 | PerlIO_printf(PerlIO_stdout(), |
2789 | "BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); | |
a1a0e61e | 2790 | #endif |
61ae2fbf | 2791 | #ifdef __MINT__ |
b0e47665 GS |
2792 | PerlIO_printf(PerlIO_stdout(), |
2793 | "MiNT port by Guido Flohr, 1997-1999\n"); | |
61ae2fbf | 2794 | #endif |
f83d2536 | 2795 | #ifdef EPOC |
b0e47665 | 2796 | PerlIO_printf(PerlIO_stdout(), |
be3c0a43 | 2797 | "EPOC port by Olaf Flebbe, 1999-2002\n"); |
f83d2536 | 2798 | #endif |
e1caacb4 | 2799 | #ifdef UNDER_CE |
b475b3e6 JH |
2800 | PerlIO_printf(PerlIO_stdout(),"WINCE port by Rainer Keuchel, 2001-2002\n"); |
2801 | PerlIO_printf(PerlIO_stdout(),"Built on " __DATE__ " " __TIME__ "\n\n"); | |
e1caacb4 JH |
2802 | wce_hitreturn(); |
2803 | #endif | |
baed7233 DL |
2804 | #ifdef BINARY_BUILD_NOTICE |
2805 | BINARY_BUILD_NOTICE; | |
2806 | #endif | |
b0e47665 GS |
2807 | PerlIO_printf(PerlIO_stdout(), |
2808 | "\n\ | |
79072805 | 2809 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
3d6f292d | 2810 | GNU General Public License, which may be found in the Perl 5 source kit.\n\n\ |
95103687 GS |
2811 | Complete documentation for Perl, including FAQ lists, should be found on\n\ |
2812 | this system using `man perl' or `perldoc perl'. If you have access to the\n\ | |
2813 | Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n"); | |
7ca617d0 | 2814 | my_exit(0); |
79072805 | 2815 | case 'w': |
599cee73 | 2816 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
ac27b0f5 | 2817 | PL_dowarn |= G_WARN_ON; |
599cee73 PM |
2818 | s++; |
2819 | return s; | |
2820 | case 'W': | |
ac27b0f5 | 2821 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; |
317ea90d MS |
2822 | if (!specialWARN(PL_compiling.cop_warnings)) |
2823 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 2824 | PL_compiling.cop_warnings = pWARN_ALL ; |
599cee73 PM |
2825 | s++; |
2826 | return s; | |
2827 | case 'X': | |
ac27b0f5 | 2828 | PL_dowarn = G_WARN_ALL_OFF; |
317ea90d MS |
2829 | if (!specialWARN(PL_compiling.cop_warnings)) |
2830 | SvREFCNT_dec(PL_compiling.cop_warnings); | |
d3a7d8c7 | 2831 | PL_compiling.cop_warnings = pWARN_NONE ; |
79072805 LW |
2832 | s++; |
2833 | return s; | |
a0d0e21e | 2834 | case '*': |
79072805 LW |
2835 | case ' ': |
2836 | if (s[1] == '-') /* Additional switches on #! line. */ | |
2837 | return s+2; | |
2838 | break; | |
a0d0e21e | 2839 | case '-': |
79072805 | 2840 | case 0: |
51882d45 | 2841 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
2842 | case '\r': |
2843 | #endif | |
79072805 LW |
2844 | case '\n': |
2845 | case '\t': | |
2846 | break; | |
aa689395 | 2847 | #ifdef ALTERNATE_SHEBANG |
2848 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
2849 | break; | |
2850 | #endif | |
a0d0e21e | 2851 | case 'P': |
3280af22 | 2852 | if (PL_preprocess) |
a0d0e21e LW |
2853 | return s+1; |
2854 | /* FALL THROUGH */ | |
79072805 | 2855 | default: |
cea2e8a9 | 2856 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 LW |
2857 | } |
2858 | return Nullch; | |
2859 | } | |
2860 | ||
2861 | /* compliments of Tom Christiansen */ | |
2862 | ||
2863 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 2864 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
2865 | |
2866 | void | |
864dbfa3 | 2867 | Perl_my_unexec(pTHX) |
79072805 LW |
2868 | { |
2869 | #ifdef UNEXEC | |
46fc3d4c | 2870 | SV* prog; |
2871 | SV* file; | |
ee580363 | 2872 | int status = 1; |
79072805 LW |
2873 | extern int etext; |
2874 | ||
ee580363 | 2875 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c | 2876 | sv_catpv(prog, "/perl"); |
6b88bc9c | 2877 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c | 2878 | sv_catpv(file, ".perldump"); |
79072805 | 2879 | |
ee580363 GS |
2880 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
2881 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 2882 | PerlProc_exit(status); |
79072805 | 2883 | #else |
a5f75d66 AD |
2884 | # ifdef VMS |
2885 | # include <lib$routines.h> | |
2886 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 2887 | # else |
79072805 | 2888 | ABORT(); /* for use with undump */ |
aa689395 | 2889 | # endif |
a5f75d66 | 2890 | #endif |
79072805 LW |
2891 | } |
2892 | ||
cb68f92d GS |
2893 | /* initialize curinterp */ |
2894 | STATIC void | |
cea2e8a9 | 2895 | S_init_interp(pTHX) |
cb68f92d GS |
2896 | { |
2897 | ||
acfe0abc GS |
2898 | #ifdef MULTIPLICITY |
2899 | # define PERLVAR(var,type) | |
2900 | # define PERLVARA(var,n,type) | |
2901 | # if defined(PERL_IMPLICIT_CONTEXT) | |
2902 | # if defined(USE_5005THREADS) | |
2903 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; | |
c5be433b | 2904 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; |
acfe0abc GS |
2905 | # else /* !USE_5005THREADS */ |
2906 | # define PERLVARI(var,type,init) aTHX->var = init; | |
2907 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
2908 | # endif /* USE_5005THREADS */ | |
3967c732 | 2909 | # else |
acfe0abc GS |
2910 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
2911 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
066ef5b5 | 2912 | # endif |
acfe0abc GS |
2913 | # include "intrpvar.h" |
2914 | # ifndef USE_5005THREADS | |
2915 | # include "thrdvar.h" | |
2916 | # endif | |
2917 | # undef PERLVAR | |
2918 | # undef PERLVARA | |
2919 | # undef PERLVARI | |
2920 | # undef PERLVARIC | |
2921 | #else | |
2922 | # define PERLVAR(var,type) | |
2923 | # define PERLVARA(var,n,type) | |
2924 | # define PERLVARI(var,type,init) PL_##var = init; | |
2925 | # define PERLVARIC(var,type,init) PL_##var = init; | |
2926 | # include "intrpvar.h" | |
2927 | # ifndef USE_5005THREADS | |
2928 | # include "thrdvar.h" | |
2929 | # endif | |
2930 | # undef PERLVAR | |
2931 | # undef PERLVARA | |
2932 | # undef PERLVARI | |
2933 | # undef PERLVARIC | |
cb68f92d GS |
2934 | #endif |
2935 | ||
cb68f92d GS |
2936 | } |
2937 | ||
76e3520e | 2938 | STATIC void |
cea2e8a9 | 2939 | S_init_main_stash(pTHX) |
79072805 | 2940 | { |
463ee0b2 | 2941 | GV *gv; |
6e72f9df | 2942 | |
3280af22 | 2943 | PL_curstash = PL_defstash = newHV(); |
79cb57f6 | 2944 | PL_curstname = newSVpvn("main",4); |
adbc6bb1 LW |
2945 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
2946 | SvREFCNT_dec(GvHV(gv)); | |
3280af22 | 2947 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 | 2948 | SvREADONLY_on(gv); |
3280af22 NIS |
2949 | HvNAME(PL_defstash) = savepv("main"); |
2950 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); | |
2951 | GvMULTI_on(PL_incgv); | |
2952 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ | |
2953 | GvMULTI_on(PL_hintgv); | |
2954 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); | |
2955 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); | |
2956 | GvMULTI_on(PL_errgv); | |
2957 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ | |
2958 | GvMULTI_on(PL_replgv); | |
cea2e8a9 | 2959 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e MB |
2960 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
2961 | sv_setpvn(ERRSV, "", 0); | |
3280af22 | 2962 | PL_curstash = PL_defstash; |
11faa288 | 2963 | CopSTASH_set(&PL_compiling, PL_defstash); |
ed094faf | 2964 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); |
3280af22 | 2965 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); |
4633a7c4 | 2966 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 2967 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
2968 | } |
2969 | ||
ae3f3efd | 2970 | /* PSz 18 Nov 03 fdscript now global but do not change prototype */ |
76e3520e | 2971 | STATIC void |
c5cccb17 | 2972 | S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv) |
79072805 | 2973 | { |
ae3f3efd | 2974 | #ifndef IAMSUID |
1b24ed4b MS |
2975 | char *quote; |
2976 | char *code; | |
2977 | char *cpp_discard_flag; | |
2978 | char *perl; | |
ae3f3efd | 2979 | #endif |
1b24ed4b | 2980 | |
ae3f3efd PS |
2981 | PL_fdscript = -1; |
2982 | PL_suidscript = -1; | |
79072805 | 2983 | |
3280af22 NIS |
2984 | if (PL_e_script) { |
2985 | PL_origfilename = savepv("-e"); | |
96436eeb | 2986 | } |
6c4ab083 GS |
2987 | else { |
2988 | /* if find_script() returns, it returns a malloc()-ed value */ | |
3280af22 | 2989 | PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
2990 | |
2991 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
2992 | char *s = scriptname + 8; | |
ae3f3efd | 2993 | PL_fdscript = atoi(s); |
6c4ab083 GS |
2994 | while (isDIGIT(*s)) |
2995 | s++; | |
2996 | if (*s) { | |
ae3f3efd PS |
2997 | /* PSz 18 Feb 04 |
2998 | * Tell apart "normal" usage of fdscript, e.g. | |
2999 | * with bash on FreeBSD: | |
3000 | * perl <( echo '#!perl -DA'; echo 'print "$0\n"') | |
3001 | * from usage in suidperl. | |
3002 | * Does any "normal" usage leave garbage after the number??? | |
3003 | * Is it a mistake to use a similar /dev/fd/ construct for | |
3004 | * suidperl? | |
3005 | */ | |
3006 | PL_suidscript = 1; | |
3007 | /* PSz 20 Feb 04 | |
3008 | * Be supersafe and do some sanity-checks. | |
3009 | * Still, can we be sure we got the right thing? | |
3010 | */ | |
3011 | if (*s != '/') { | |
3012 | Perl_croak(aTHX_ "Wrong syntax (suid) fd script name \"%s\"\n", s); | |
3013 | } | |
3014 | if (! *(s+1)) { | |
3015 | Perl_croak(aTHX_ "Missing (suid) fd script name\n"); | |
3016 | } | |
6c4ab083 | 3017 | scriptname = savepv(s + 1); |
3280af22 NIS |
3018 | Safefree(PL_origfilename); |
3019 | PL_origfilename = scriptname; | |
6c4ab083 GS |
3020 | } |
3021 | } | |
3022 | } | |
3023 | ||
05ec9bb3 | 3024 | CopFILE_free(PL_curcop); |
57843af0 | 3025 | CopFILE_set(PL_curcop, PL_origfilename); |
3280af22 | 3026 | if (strEQ(PL_origfilename,"-")) |
79072805 | 3027 | scriptname = ""; |
ae3f3efd PS |
3028 | if (PL_fdscript >= 0) { |
3029 | PL_rsfp = PerlIO_fdopen(PL_fdscript,PERL_SCRIPT_MODE); | |
1b24ed4b MS |
3030 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3031 | if (PL_rsfp) | |
3032 | /* ensure close-on-exec */ | |
3033 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3034 | # endif | |
96436eeb | 3035 | } |
ae3f3efd PS |
3036 | #ifdef IAMSUID |
3037 | else { | |
86207487 NC |
3038 | Perl_croak(aTHX_ "sperl needs fd script\n" |
3039 | "You should not call sperl directly; do you need to " | |
3040 | "change a #! line\nfrom sperl to perl?\n"); | |
3041 | ||
ae3f3efd PS |
3042 | /* PSz 11 Nov 03 |
3043 | * Do not open (or do other fancy stuff) while setuid. | |
3044 | * Perl does the open, and hands script to suidperl on a fd; | |
3045 | * suidperl only does some checks, sets up UIDs and re-execs | |
3046 | * perl with that fd as it has always done. | |
3047 | */ | |
3048 | } | |
3049 | if (PL_suidscript != 1) { | |
3050 | Perl_croak(aTHX_ "suidperl needs (suid) fd script\n"); | |
3051 | } | |
3052 | #else /* IAMSUID */ | |
3280af22 | 3053 | else if (PL_preprocess) { |
46fc3d4c | 3054 | char *cpp_cfg = CPPSTDIN; |
79cb57f6 | 3055 | SV *cpp = newSVpvn("",0); |
46fc3d4c | 3056 | SV *cmd = NEWSV(0,0); |
3057 | ||
ae58f265 JH |
3058 | if (cpp_cfg[0] == 0) /* PERL_MICRO? */ |
3059 | Perl_croak(aTHX_ "Can't run with cpp -P with CPPSTDIN undefined"); | |
46fc3d4c | 3060 | if (strEQ(cpp_cfg, "cppstdin")) |
cea2e8a9 | 3061 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 3062 | sv_catpv(cpp, cpp_cfg); |
79072805 | 3063 | |
1b24ed4b MS |
3064 | # ifndef VMS |
3065 | sv_catpvn(sv, "-I", 2); | |
3066 | sv_catpv(sv,PRIVLIB_EXP); | |
3067 | # endif | |
46fc3d4c | 3068 | |
14953ddc MB |
3069 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3070 | "PL_preprocess: scriptname=\"%s\", cpp=\"%s\", sv=\"%s\", CPPMINUS=\"%s\"\n", | |
3071 | scriptname, SvPVX (cpp), SvPVX (sv), CPPMINUS)); | |
1b24ed4b MS |
3072 | |
3073 | # if defined(MSDOS) || defined(WIN32) || defined(VMS) | |
3074 | quote = "\""; | |
3075 | # else | |
3076 | quote = "'"; | |
3077 | # endif | |
3078 | ||
3079 | # ifdef VMS | |
3080 | cpp_discard_flag = ""; | |
3081 | # else | |
3082 | cpp_discard_flag = "-C"; | |
3083 | # endif | |
3084 | ||
3085 | # ifdef OS2 | |
3086 | perl = os2_execname(aTHX); | |
3087 | # else | |
3088 | perl = PL_origargv[0]; | |
3089 | # endif | |
3090 | ||
3091 | ||
3092 | /* This strips off Perl comments which might interfere with | |
62375a60 NIS |
3093 | the C pre-processor, including #!. #line directives are |
3094 | deliberately stripped to avoid confusion with Perl's version | |
1b24ed4b MS |
3095 | of #line. FWP played some golf with it so it will fit |
3096 | into VMS's 255 character buffer. | |
3097 | */ | |
3098 | if( PL_doextract ) | |
3099 | code = "(1../^#!.*perl/i)|/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3100 | else | |
3101 | code = "/^\\s*#(?!\\s*((ifn?|un)def|(el|end)?if|define|include|else|error|pragma)\\b)/||!($|=1)||print"; | |
3102 | ||
3103 | Perl_sv_setpvf(aTHX_ cmd, "\ | |
3104 | %s -ne%s%s%s %s | %"SVf" %s %"SVf" %s", | |
62375a60 | 3105 | perl, quote, code, quote, scriptname, cpp, |
1b24ed4b MS |
3106 | cpp_discard_flag, sv, CPPMINUS); |
3107 | ||
3280af22 | 3108 | PL_doextract = FALSE; |
0a6c758d | 3109 | |
62375a60 NIS |
3110 | DEBUG_P(PerlIO_printf(Perl_debug_log, |
3111 | "PL_preprocess: cmd=\"%s\"\n", | |
0a6c758d MS |
3112 | SvPVX(cmd))); |
3113 | ||
3280af22 | 3114 | PL_rsfp = PerlProc_popen(SvPVX(cmd), "r"); |
46fc3d4c | 3115 | SvREFCNT_dec(cmd); |
3116 | SvREFCNT_dec(cpp); | |
79072805 LW |
3117 | } |
3118 | else if (!*scriptname) { | |
bbce6d69 | 3119 | forbid_setid("program input from stdin"); |
3280af22 | 3120 | PL_rsfp = PerlIO_stdin(); |
79072805 | 3121 | } |
96436eeb | 3122 | else { |
3280af22 | 3123 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
1b24ed4b MS |
3124 | # if defined(HAS_FCNTL) && defined(F_SETFD) |
3125 | if (PL_rsfp) | |
3126 | /* ensure close-on-exec */ | |
3127 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); | |
3128 | # endif | |
96436eeb | 3129 | } |
ae3f3efd | 3130 | #endif /* IAMSUID */ |
3280af22 | 3131 | if (!PL_rsfp) { |
447218f8 | 3132 | /* PSz 16 Sep 03 Keep neat error message */ |
fa3aa65a JC |
3133 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", |
3134 | CopFILE(PL_curcop), Strerror(errno)); | |
13281fa4 | 3135 | } |
79072805 | 3136 | } |
8d063cd8 | 3137 | |
7b89560d JH |
3138 | /* Mention |
3139 | * I_SYSSTATVFS HAS_FSTATVFS | |
3140 | * I_SYSMOUNT | |
c890dc6c | 3141 | * I_STATFS HAS_FSTATFS HAS_GETFSSTAT |
7b89560d JH |
3142 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT |
3143 | * here so that metaconfig picks them up. */ | |
3144 | ||
104d25b7 | 3145 | #ifdef IAMSUID |
864dbfa3 | 3146 | STATIC int |
e688b231 | 3147 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 3148 | { |
ae3f3efd PS |
3149 | /* PSz 27 Feb 04 |
3150 | * We used to do this as "plain" user (after swapping UIDs with setreuid); | |
3151 | * but is needed also on machines without setreuid. | |
3152 | * Seems safe enough to run as root. | |
3153 | */ | |
0545a864 JH |
3154 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
3155 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
ae3f3efd PS |
3156 | /* PSz 12 Nov 03 |
3157 | * Need to check noexec also: nosuid might not be set, the average | |
3158 | * sysadmin would say that nosuid is irrelevant once he sets noexec. | |
3159 | */ | |
3160 | int on_noexec = 0; /* the fd is on a noexec fs */ | |
3161 | ||
104d25b7 | 3162 | /* |
ad27e871 | 3163 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 3164 | * fstatvfs() is UNIX98. |
0545a864 | 3165 | * fstatfs() is 4.3 BSD. |
ad27e871 | 3166 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
3167 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
3168 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
3169 | */ |
3170 | ||
6439433f JH |
3171 | #undef FD_ON_NOSUID_CHECK_OKAY /* found the syscalls to do the check? */ |
3172 | ||
3173 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3174 | defined(HAS_FSTATVFS) | |
3175 | # define FD_ON_NOSUID_CHECK_OKAY | |
104d25b7 | 3176 | struct statvfs stfs; |
6439433f | 3177 | |
104d25b7 JH |
3178 | check_okay = fstatvfs(fd, &stfs) == 0; |
3179 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
ae3f3efd PS |
3180 | #ifdef ST_NOEXEC |
3181 | /* ST_NOEXEC certainly absent on AIX 5.1, and doesn't seem to be documented | |
3182 | on platforms where it is present. */ | |
3183 | on_noexec = check_okay && (stfs.f_flag & ST_NOEXEC); | |
3184 | #endif | |
6439433f | 3185 | # endif /* fstatvfs */ |
ac27b0f5 | 3186 | |
6439433f JH |
3187 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ |
3188 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3189 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3190 | defined(HAS_FSTATFS) && \ |
3191 | defined(HAS_STRUCT_STATFS) && \ | |
3192 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
3193 | # define FD_ON_NOSUID_CHECK_OKAY | |
e688b231 | 3194 | struct statfs stfs; |
6439433f | 3195 | |
104d25b7 | 3196 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 3197 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
ae3f3efd | 3198 | on_noexec = check_okay && (stfs.f_flags & PERL_MOUNT_NOEXEC); |
6439433f JH |
3199 | # endif /* fstatfs */ |
3200 | ||
3201 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3202 | defined(PERL_MOUNT_NOSUID) && \ | |
ae3f3efd | 3203 | defined(PERL_MOUNT_NOEXEC) && \ |
6439433f JH |
3204 | defined(HAS_FSTAT) && \ |
3205 | defined(HAS_USTAT) && \ | |
3206 | defined(HAS_GETMNT) && \ | |
3207 | defined(HAS_STRUCT_FS_DATA) && \ | |
3208 | defined(NOSTAT_ONE) | |
3209 | # define FD_ON_NOSUID_CHECK_OKAY | |
c623ac67 | 3210 | Stat_t fdst; |
6439433f | 3211 | |
0545a864 | 3212 | if (fstat(fd, &fdst) == 0) { |
6439433f JH |
3213 | struct ustat us; |
3214 | if (ustat(fdst.st_dev, &us) == 0) { | |
3215 | struct fs_data fsd; | |
3216 | /* NOSTAT_ONE here because we're not examining fields which | |
3217 | * vary between that case and STAT_ONE. */ | |
ad27e871 | 3218 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { |
6439433f JH |
3219 | size_t cmplen = sizeof(us.f_fname); |
3220 | if (sizeof(fsd.fd_req.path) < cmplen) | |
3221 | cmplen = sizeof(fsd.fd_req.path); | |
3222 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
3223 | fdst.st_dev == fsd.fd_req.dev) { | |
3224 | check_okay = 1; | |
3225 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
ae3f3efd | 3226 | on_noexec = fsd.fd_req.flags & PERL_MOUNT_NOEXEC; |
6439433f JH |
3227 | } |
3228 | } | |
3229 | } | |
3230 | } | |
0545a864 | 3231 | } |
6439433f JH |
3232 | # endif /* fstat+ustat+getmnt */ |
3233 | ||
3234 | # if !defined(FD_ON_NOSUID_CHECK_OKAY) && \ | |
3235 | defined(HAS_GETMNTENT) && \ | |
3236 | defined(HAS_HASMNTOPT) && \ | |
ae3f3efd PS |
3237 | defined(MNTOPT_NOSUID) && \ |
3238 | defined(MNTOPT_NOEXEC) | |
6439433f JH |
3239 | # define FD_ON_NOSUID_CHECK_OKAY |
3240 | FILE *mtab = fopen("/etc/mtab", "r"); | |
3241 | struct mntent *entry; | |
c623ac67 | 3242 | Stat_t stb, fsb; |
104d25b7 JH |
3243 | |
3244 | if (mtab && (fstat(fd, &stb) == 0)) { | |
6439433f JH |
3245 | while (entry = getmntent(mtab)) { |
3246 | if (stat(entry->mnt_dir, &fsb) == 0 | |
3247 | && fsb.st_dev == stb.st_dev) | |
3248 | { | |
3249 | /* found the filesystem */ | |
3250 | check_okay = 1; | |
3251 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
3252 | on_nosuid = 1; | |
ae3f3efd PS |
3253 | if (hasmntopt(entry, MNTOPT_NOEXEC)) |
3254 | on_noexec = 1; | |
6439433f JH |
3255 | break; |
3256 | } /* A single fs may well fail its stat(). */ | |
3257 | } | |
104d25b7 JH |
3258 | } |
3259 | if (mtab) | |
6439433f JH |
3260 | fclose(mtab); |
3261 | # endif /* getmntent+hasmntopt */ | |
0545a864 | 3262 | |
ac27b0f5 | 3263 | if (!check_okay) |
ae3f3efd PS |
3264 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid/noexec", PL_origfilename); |
3265 | if (on_nosuid) | |
3266 | Perl_croak(aTHX_ "Setuid script \"%s\" on nosuid filesystem", PL_origfilename); | |
3267 | if (on_noexec) | |
3268 | Perl_croak(aTHX_ "Setuid script \"%s\" on noexec filesystem", PL_origfilename); | |
3269 | return ((!check_okay) || on_nosuid || on_noexec); | |
104d25b7 JH |
3270 | } |
3271 | #endif /* IAMSUID */ | |
3272 | ||
76e3520e | 3273 | STATIC void |
c5cccb17 | 3274 | S_validate_suid(pTHX_ char *validarg, char *scriptname) |
79072805 | 3275 | { |
155aba94 | 3276 | #ifdef IAMSUID |
ae3f3efd PS |
3277 | /* int which; */ |
3278 | #endif /* IAMSUID */ | |
96436eeb | 3279 | |
13281fa4 LW |
3280 | /* do we need to emulate setuid on scripts? */ |
3281 | ||
3282 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
3283 | * in the kernel because of a security problem. Merely defining DOSUID | |
3284 | * in perl will not fix that problem, but if you have disabled setuid | |
3285 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
3286 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
3287 | * root version must be called suidperl or sperlN.NNN. If regular perl |
3288 | * discovers that it has opened a setuid script, it calls suidperl with | |
3289 | * the same argv that it had. If suidperl finds that the script it has | |
3290 | * just opened is NOT setuid root, it sets the effective uid back to the | |
3291 | * uid. We don't just make perl setuid root because that loses the | |
3292 | * effective uid we had before invoking perl, if it was different from the | |
3293 | * uid. | |
ae3f3efd PS |
3294 | * PSz 27 Feb 04 |
3295 | * Description/comments above do not match current workings: | |
3296 | * suidperl must be hardlinked to sperlN.NNN (that is what we exec); | |
3297 | * suidperl called with script open and name changed to /dev/fd/N/X; | |
3298 | * suidperl croaks if script is not setuid; | |
3299 | * making perl setuid would be a huge security risk (and yes, that | |
3300 | * would lose any euid we might have had). | |
13281fa4 LW |
3301 | * |
3302 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
3303 | * be defined in suidperl only. suidperl must be setuid root. The | |
3304 | * Configure script will set this up for you if you want it. | |
3305 | */ | |
a687059c | 3306 | |
13281fa4 | 3307 | #ifdef DOSUID |
6e72f9df | 3308 | char *s, *s2; |
a0d0e21e | 3309 | |
b28d0864 | 3310 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 3311 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
ae3f3efd | 3312 | if (PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 3313 | I32 len; |
2d8e6c8d | 3314 | STRLEN n_a; |
13281fa4 | 3315 | |
a687059c | 3316 | #ifdef IAMSUID |
ae3f3efd PS |
3317 | if (PL_fdscript < 0 || PL_suidscript != 1) |
3318 | Perl_croak(aTHX_ "Need (suid) fdscript in suidperl\n"); /* We already checked this */ | |
3319 | /* PSz 11 Nov 03 | |
3320 | * Since the script is opened by perl, not suidperl, some of these | |
3321 | * checks are superfluous. Leaving them in probably does not lower | |
3322 | * security(?!). | |
3323 | */ | |
3324 | /* PSz 27 Feb 04 | |
3325 | * Do checks even for systems with no HAS_SETREUID. | |
3326 | * We used to swap, then re-swap UIDs with | |
3327 | #ifdef HAS_SETREUID | |
3328 | if (setreuid(PL_euid,PL_uid) < 0 | |
3329 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) | |
3330 | Perl_croak(aTHX_ "Can't swap uid and euid"); | |
3331 | #endif | |
3332 | #ifdef HAS_SETREUID | |
3333 | if (setreuid(PL_uid,PL_euid) < 0 | |
3334 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) | |
3335 | Perl_croak(aTHX_ "Can't reswap uid and euid"); | |
3336 | #endif | |
3337 | */ | |
3338 | ||
a687059c LW |
3339 | /* On this access check to make sure the directories are readable, |
3340 | * there is actually a small window that the user could use to make | |
3341 | * filename point to an accessible directory. So there is a faint | |
3342 | * chance that someone could execute a setuid script down in a | |
3343 | * non-accessible directory. I don't know what to do about that. | |
3344 | * But I don't think it's too important. The manual lies when | |
3345 | * it says access() is useful in setuid programs. | |
ae3f3efd PS |
3346 | * |
3347 | * So, access() is pretty useless... but not harmful... do anyway. | |
a687059c | 3348 | */ |
e57400b1 | 3349 | if (PerlLIO_access(CopFILE(PL_curcop),1)) { /*double check*/ |
ae3f3efd | 3350 | Perl_croak(aTHX_ "Can't access() script\n"); |
e57400b1 | 3351 | } |
ae3f3efd | 3352 | |
a687059c LW |
3353 | /* If we can swap euid and uid, then we can determine access rights |
3354 | * with a simple stat of the file, and then compare device and | |
3355 | * inode to make sure we did stat() on the same file we opened. | |
3356 | * Then we just have to make sure he or she can execute it. | |
ae3f3efd PS |
3357 | * |
3358 | * PSz 24 Feb 04 | |
3359 | * As the script is opened by perl, not suidperl, we do not need to | |
3360 | * care much about access rights. | |
3361 | * | |
3362 | * The 'script changed' check is needed, or we can get lied to | |
3363 | * about $0 with e.g. | |
3364 | * suidperl /dev/fd/4//bin/x 4<setuidscript | |
3365 | * Without HAS_SETREUID, is it safe to stat() as root? | |
3366 | * | |
3367 | * Are there any operating systems that pass /dev/fd/xxx for setuid | |
3368 | * scripts, as suggested/described in perlsec(1)? Surely they do not | |
3369 | * pass the script name as we do, so the "script changed" test would | |
3370 | * fail for them... but we never get here with | |
3371 | * SETUID_SCRIPTS_ARE_SECURE_NOW defined. | |
3372 | * | |
3373 | * This is one place where we must "lie" about return status: not | |
3374 | * say if the stat() failed. We are doing this as root, and could | |
3375 | * be tricked into reporting existence or not of files that the | |
3376 | * "plain" user cannot even see. | |
a687059c LW |
3377 | */ |
3378 | { | |
c623ac67 | 3379 | Stat_t tmpstatbuf; |
ae3f3efd PS |
3380 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0 || |
3381 | tmpstatbuf.st_dev != PL_statbuf.st_dev || | |
b28d0864 | 3382 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { |
ae3f3efd | 3383 | Perl_croak(aTHX_ "Setuid script changed\n"); |
a687059c | 3384 | } |
ae3f3efd | 3385 | |
a687059c | 3386 | } |
ae3f3efd PS |
3387 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
3388 | Perl_croak(aTHX_ "Real UID cannot exec script\n"); | |
3389 | ||
3390 | /* PSz 27 Feb 04 | |
3391 | * We used to do this check as the "plain" user (after swapping | |
3392 | * UIDs). But the check for nosuid and noexec filesystem is needed, | |
3393 | * and should be done even without HAS_SETREUID. (Maybe those | |
3394 | * operating systems do not have such mount options anyway...) | |
3395 | * Seems safe enough to do as root. | |
3396 | */ | |
3397 | #if !defined(NO_NOSUID_CHECK) | |
3398 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) { | |
3399 | Perl_croak(aTHX_ "Setuid script on nosuid or noexec filesystem\n"); | |
3400 | } | |
3401 | #endif | |
a687059c LW |
3402 | #endif /* IAMSUID */ |
3403 | ||
e57400b1 | 3404 | if (!S_ISREG(PL_statbuf.st_mode)) { |
ae3f3efd | 3405 | Perl_croak(aTHX_ "Setuid script not plain file\n"); |
e57400b1 | 3406 | } |
b28d0864 | 3407 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 3408 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c | 3409 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
ae3f3efd | 3410 | /* PSz 13 Nov 03 But -s was caught elsewhere ... so unsetting it here is useless(?!) */ |
57843af0 | 3411 | CopLINE_inc(PL_curcop); |
6b88bc9c | 3412 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || |
2d8e6c8d | 3413 | strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */ |
cea2e8a9 | 3414 | Perl_croak(aTHX_ "No #! line"); |
2d8e6c8d | 3415 | s = SvPV(PL_linestr,n_a)+2; |
ae3f3efd PS |
3416 | /* PSz 27 Feb 04 */ |
3417 | /* Sanity check on line length */ | |
3418 | if (strlen(s) < 1 || strlen(s) > 4000) | |
3419 | Perl_croak(aTHX_ "Very long #! line"); | |
3420 | /* Allow more than a single space after #! */ | |
3421 | while (isSPACE(*s)) s++; | |
3422 | /* Sanity check on buffer end */ | |
3423 | while ((*s) && !isSPACE(*s)) s++; | |
2d8e6c8d | 3424 | for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 && |
6e72f9df | 3425 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
ae3f3efd PS |
3426 | /* Sanity check on buffer start */ |
3427 | if ( (s2-4 < SvPV(PL_linestr,n_a)+2 || strnNE(s2-4,"perl",4)) && | |
3428 | (s-9 < SvPV(PL_linestr,n_a)+2 || strnNE(s-9,"perl",4)) ) | |
cea2e8a9 | 3429 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 3430 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
3431 | /* |
3432 | * #! arg must be what we saw above. They can invoke it by | |
3433 | * mentioning suidperl explicitly, but they may not add any strange | |
3434 | * arguments beyond what #! says if they do invoke suidperl that way. | |
3435 | */ | |
ae3f3efd PS |
3436 | /* |
3437 | * The way validarg was set up, we rely on the kernel to start | |
3438 | * scripts with argv[1] set to contain all #! line switches (the | |
3439 | * whole line). | |
3440 | */ | |
3441 | /* | |
3442 | * Check that we got all the arguments listed in the #! line (not | |
3443 | * just that there are no extraneous arguments). Might not matter | |
3444 | * much, as switches from #! line seem to be acted upon (also), and | |
3445 | * so may be checked and trapped in perl. But, security checks must | |
3446 | * be done in suidperl and not deferred to perl. Note that suidperl | |
3447 | * does not get around to parsing (and checking) the switches on | |
3448 | * the #! line (but execs perl sooner). | |
3449 | * Allow (require) a trailing newline (which may be of two | |
3450 | * characters on some architectures?) (but no other trailing | |
3451 | * whitespace). | |
3452 | */ | |
13281fa4 LW |
3453 | len = strlen(validarg); |
3454 | if (strEQ(validarg," PHOOEY ") || | |
ae3f3efd PS |
3455 | strnNE(s,validarg,len) || !isSPACE(s[len]) || |
3456 | !(strlen(s) == len+1 || (strlen(s) == len+2 && isSPACE(s[len+1])))) | |
cea2e8a9 | 3457 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
3458 | |
3459 | #ifndef IAMSUID | |
ae3f3efd PS |
3460 | if (PL_fdscript < 0 && |
3461 | PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && | |
b28d0864 NIS |
3462 | PL_euid == PL_statbuf.st_uid) |
3463 | if (!PL_do_undump) | |
cea2e8a9 | 3464 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
11fb1898 | 3465 | FIX YOUR KERNEL, OR PUT A C WRAPPER AROUND THIS SCRIPT!\n"); |
a687059c | 3466 | #endif /* IAMSUID */ |
13281fa4 | 3467 | |
ae3f3efd PS |
3468 | if (PL_fdscript < 0 && |
3469 | PL_euid) { /* oops, we're not the setuid root perl */ | |
3470 | /* PSz 18 Feb 04 | |
3471 | * When root runs a setuid script, we do not go through the same | |
3472 | * steps of execing sperl and then perl with fd scripts, but | |
3473 | * simply set up UIDs within the same perl invocation; so do | |
3474 | * not have the same checks (on options, whatever) that we have | |
3475 | * for plain users. No problem really: would have to be a script | |
3476 | * that does not actually work for plain users; and if root is | |
3477 | * foolish and can be persuaded to run such an unsafe script, he | |
3478 | * might run also non-setuid ones, and deserves what he gets. | |
3479 | * | |
3480 | * Or, we might drop the PL_euid check above (and rely just on | |
3481 | * PL_fdscript to avoid loops), and do the execs | |
3482 | * even for root. | |
3483 | */ | |
13281fa4 | 3484 | #ifndef IAMSUID |
ae3f3efd PS |
3485 | int which; |
3486 | /* PSz 11 Nov 03 | |
3487 | * Pass fd script to suidperl. | |
3488 | * Exec suidperl, substituting fd script for scriptname. | |
3489 | * Pass script name as "subdir" of fd, which perl will grok; | |
3490 | * in fact will use that to distinguish this from "normal" | |
3491 | * usage, see comments above. | |
3492 | */ | |
3493 | PerlIO_rewind(PL_rsfp); | |
3494 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
3495 | /* PSz 27 Feb 04 Sanity checks on scriptname */ | |
3496 | if ((!scriptname) || (!*scriptname) ) { | |
3497 | Perl_croak(aTHX_ "No setuid script name\n"); | |
3498 | } | |
3499 | if (*scriptname == '-') { | |
3500 | Perl_croak(aTHX_ "Setuid script name may not begin with dash\n"); | |
3501 | /* Or we might confuse it with an option when replacing | |
3502 | * name in argument list, below (though we do pointer, not | |
3503 | * string, comparisons). | |
3504 | */ | |
3505 | } | |
3506 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; | |
3507 | if (!PL_origargv[which]) { | |
3508 | Perl_croak(aTHX_ "Can't change argv to have fd script\n"); | |
3509 | } | |
3510 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
3511 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); | |
3512 | #if defined(HAS_FCNTL) && defined(F_SETFD) | |
3513 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ | |
3514 | #endif | |
b35112e7 | 3515 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 3516 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
3517 | (int)PERL_REVISION, (int)PERL_VERSION, |
3518 | (int)PERL_SUBVERSION), PL_origargv); | |
b35112e7 | 3519 | PERL_FPU_POST_EXEC |
ae3f3efd PS |
3520 | #endif /* IAMSUID */ |
3521 | Perl_croak(aTHX_ "Can't do setuid (cannot exec sperl)\n"); | |
13281fa4 LW |
3522 | } |
3523 | ||
b28d0864 | 3524 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
ae3f3efd PS |
3525 | /* PSz 26 Feb 04 |
3526 | * This seems back to front: we try HAS_SETEGID first; if not available | |
3527 | * then try HAS_SETREGID; as a last chance we try HAS_SETRESGID. May be OK | |
3528 | * in the sense that we only want to set EGID; but are there any machines | |
3529 | * with either of the latter, but not the former? Same with UID, later. | |
3530 | */ | |
fe14fcc3 | 3531 | #ifdef HAS_SETEGID |
b28d0864 | 3532 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 3533 | #else |
fe14fcc3 | 3534 | #ifdef HAS_SETREGID |
b28d0864 | 3535 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
3536 | #else |
3537 | #ifdef HAS_SETRESGID | |
b28d0864 | 3538 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 3539 | #else |
b28d0864 | 3540 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
3541 | #endif |
3542 | #endif | |
85e6fe83 | 3543 | #endif |
b28d0864 | 3544 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 3545 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 3546 | } |
b28d0864 NIS |
3547 | if (PL_statbuf.st_mode & S_ISUID) { |
3548 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 3549 | #ifdef HAS_SETEUID |
b28d0864 | 3550 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 3551 | #else |
fe14fcc3 | 3552 | #ifdef HAS_SETREUID |
b28d0864 | 3553 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
3554 | #else |
3555 | #ifdef HAS_SETRESUID | |
b28d0864 | 3556 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 3557 | #else |
b28d0864 | 3558 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
3559 | #endif |
3560 | #endif | |
85e6fe83 | 3561 | #endif |
b28d0864 | 3562 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 3563 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 3564 | } |
b28d0864 | 3565 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 3566 | #ifdef HAS_SETEUID |
b28d0864 | 3567 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 3568 | #else |
fe14fcc3 | 3569 | #ifdef HAS_SETREUID |
b28d0864 | 3570 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 3571 | #else |
85e6fe83 | 3572 | #ifdef HAS_SETRESUID |
b28d0864 | 3573 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 3574 | #else |
b28d0864 | 3575 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 3576 | #endif |
a687059c LW |
3577 | #endif |
3578 | #endif | |
b28d0864 | 3579 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 3580 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 3581 | } |
748a9306 | 3582 | init_ids(); |
b28d0864 | 3583 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
ae3f3efd | 3584 | Perl_croak(aTHX_ "Effective UID cannot exec script\n"); /* they can't do this */ |
13281fa4 LW |
3585 | } |
3586 | #ifdef IAMSUID | |
ae3f3efd | 3587 | else if (PL_preprocess) /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ |
cea2e8a9 | 3588 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
ae3f3efd PS |
3589 | else if (PL_fdscript < 0 || PL_suidscript != 1) |
3590 | /* PSz 13 Nov 03 Caught elsewhere, useless(?!) here */ | |
3591 | Perl_croak(aTHX_ "(suid) fdscript needed in suidperl\n"); | |
e57400b1 | 3592 | else { |
ae3f3efd PS |
3593 | /* PSz 16 Sep 03 Keep neat error message */ |
3594 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); | |
e57400b1 | 3595 | } |
96436eeb | 3596 | |
3597 | /* We absolutely must clear out any saved ids here, so we */ | |
3598 | /* exec the real perl, substituting fd script for scriptname. */ | |
3599 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
ae3f3efd PS |
3600 | /* |
3601 | * It might be thought that using setresgid and/or setresuid (changed to | |
3602 | * set the saved IDs) above might obviate the need to exec, and we could | |
3603 | * go on to "do the perl thing". | |
3604 | * | |
3605 | * Is there such a thing as "saved GID", and is that set for setuid (but | |
3606 | * not setgid) execution like suidperl? Without exec, it would not be | |
3607 | * cleared for setuid (but not setgid) scripts (or might need a dummy | |
3608 | * setresgid). | |
3609 | * | |
3610 | * We need suidperl to do the exact same argument checking that perl | |
3611 | * does. Thus it cannot be very small; while it could be significantly | |
3612 | * smaller, it is safer (simpler?) to make it essentially the same | |
3613 | * binary as perl (but they are not identical). - Maybe could defer that | |
3614 | * check to the invoked perl, and suidperl be a tiny wrapper instead; | |
3615 | * but prefer to do thorough checks in suidperl itself. Such deferral | |
3616 | * would make suidperl security rely on perl, a design no-no. | |
3617 | * | |
3618 | * Setuid things should be short and simple, thus easy to understand and | |
3619 | * verify. They should do their "own thing", without influence by | |
3620 | * attackers. It may help if their internal execution flow is fixed, | |
3621 | * regardless of platform: it may be best to exec anyway. | |
3622 | * | |
3623 | * Suidperl should at least be conceptually simple: a wrapper only, | |
3624 | * never to do any real perl. Maybe we should put | |
3625 | * #ifdef IAMSUID | |
3626 | * Perl_croak(aTHX_ "Suidperl should never do real perl\n"); | |
3627 | * #endif | |
3628 | * into the perly bits. | |
3629 | */ | |
b28d0864 NIS |
3630 | PerlIO_rewind(PL_rsfp); |
3631 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
ae3f3efd PS |
3632 | /* PSz 11 Nov 03 |
3633 | * Keep original arguments: suidperl already has fd script. | |
3634 | */ | |
3635 | /* for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; */ | |
3636 | /* if (!PL_origargv[which]) { */ | |
3637 | /* errno = EPERM; */ | |
3638 | /* Perl_croak(aTHX_ "Permission denied\n"); */ | |
3639 | /* } */ | |
3640 | /* PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", */ | |
3641 | /* PerlIO_fileno(PL_rsfp), PL_origargv[which])); */ | |
96436eeb | 3642 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 3643 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 3644 | #endif |
b35112e7 | 3645 | PERL_FPU_PRE_EXEC |
a7cb1f99 | 3646 | PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP, |
273cf8d1 GS |
3647 | (int)PERL_REVISION, (int)PERL_VERSION, |
3648 | (int)PERL_SUBVERSION), PL_origargv);/* try again */ | |
b35112e7 | 3649 | PERL_FPU_POST_EXEC |
ae3f3efd | 3650 | Perl_croak(aTHX_ "Can't do setuid (suidperl cannot exec perl)\n"); |
13281fa4 | 3651 | #endif /* IAMSUID */ |
a687059c | 3652 | #else /* !DOSUID */ |
3280af22 | 3653 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 3654 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
b28d0864 NIS |
3655 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
3656 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 3657 | || |
b28d0864 | 3658 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 3659 | ) |
b28d0864 | 3660 | if (!PL_do_undump) |
cea2e8a9 | 3661 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
3662 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
3663 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
3664 | /* not set-id, must be wrapped */ | |
a687059c | 3665 | } |
13281fa4 | 3666 | #endif /* DOSUID */ |
79072805 | 3667 | } |
13281fa4 | 3668 | |
76e3520e | 3669 | STATIC void |
cea2e8a9 | 3670 | S_find_beginning(pTHX) |
79072805 | 3671 | { |
6e72f9df | 3672 | register char *s, *s2; |
e55ac0fa HS |
3673 | #ifdef MACOS_TRADITIONAL |
3674 | int maclines = 0; | |
3675 | #endif | |
33b78306 LW |
3676 | |
3677 | /* skip forward in input to the real script? */ | |
3678 | ||
bbce6d69 | 3679 | forbid_setid("-x"); |
bf4acbe4 | 3680 | #ifdef MACOS_TRADITIONAL |
084592ab | 3681 | /* Since the Mac OS does not honor #! arguments for us, we do it ourselves */ |
ac27b0f5 | 3682 | |
bf4acbe4 GS |
3683 | while (PL_doextract || gMacPerl_AlwaysExtract) { |
3684 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) { | |
3685 | if (!gMacPerl_AlwaysExtract) | |
3686 | Perl_croak(aTHX_ "No Perl script found in input\n"); | |
e55ac0fa | 3687 | |
bf4acbe4 GS |
3688 | if (PL_doextract) /* require explicit override ? */ |
3689 | if (!OverrideExtract(PL_origfilename)) | |
3690 | Perl_croak(aTHX_ "User aborted script\n"); | |
3691 | else | |
3692 | PL_doextract = FALSE; | |
e55ac0fa | 3693 | |
bf4acbe4 GS |
3694 | /* Pater peccavi, file does not have #! */ |
3695 | PerlIO_rewind(PL_rsfp); | |
e55ac0fa | 3696 | |
bf4acbe4 GS |
3697 | break; |
3698 | } | |
3699 | #else | |
3280af22 NIS |
3700 | while (PL_doextract) { |
3701 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) | |
cea2e8a9 | 3702 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
bf4acbe4 | 3703 | #endif |
4f0c37ba IZ |
3704 | s2 = s; |
3705 | if (*s == '#' && s[1] == '!' && ((s = instr(s,"perl")) || (s = instr(s2,"PERL")))) { | |
3280af22 NIS |
3706 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
3707 | PL_doextract = FALSE; | |
6e72f9df | 3708 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
3709 | s2 = s; | |
3710 | while (*s == ' ' || *s == '\t') s++; | |
3711 | if (*s++ == '-') { | |
3712 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
3713 | if (strnEQ(s2-4,"perl",4)) | |
3714 | /*SUPPRESS 530*/ | |
155aba94 GS |
3715 | while ((s = moreswitches(s))) |
3716 | ; | |
33b78306 | 3717 | } |
95e8664e | 3718 | #ifdef MACOS_TRADITIONAL |
e55ac0fa HS |
3719 | /* We are always searching for the #!perl line in MacPerl, |
3720 | * so if we find it, still keep the line count correct | |
3721 | * by counting lines we already skipped over | |
3722 | */ | |
3723 | for (; maclines > 0 ; maclines--) | |
3724 | PerlIO_ungetc(PL_rsfp, '\n'); | |
3725 | ||
95e8664e | 3726 | break; |
e55ac0fa HS |
3727 | |
3728 | /* gMacPerl_AlwaysExtract is false in MPW tool */ | |
3729 | } else if (gMacPerl_AlwaysExtract) { | |
3730 | ++maclines; | |
95e8664e | 3731 | #endif |
83025b21 LW |
3732 | } |
3733 | } | |
3734 | } | |
3735 | ||
afe37c7d | 3736 | |
76e3520e | 3737 | STATIC void |
cea2e8a9 | 3738 | S_init_ids(pTHX) |
352d5a3a | 3739 | { |
d8eceb89 JH |
3740 | PL_uid = PerlProc_getuid(); |
3741 | PL_euid = PerlProc_geteuid(); | |
3742 | PL_gid = PerlProc_getgid(); | |
3743 | PL_egid = PerlProc_getegid(); | |
748a9306 | 3744 | #ifdef VMS |
b28d0864 NIS |
3745 | PL_uid |= PL_gid << 16; |
3746 | PL_euid |= PL_egid << 16; | |
748a9306 | 3747 | #endif |
22f7c9c9 JH |
3748 | /* Should not happen: */ |
3749 | CHECK_MALLOC_TAINT(PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); | |
3280af22 | 3750 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
ae3f3efd PS |
3751 | /* BUG */ |
3752 | /* PSz 27 Feb 04 | |
3753 | * Should go by suidscript, not uid!=euid: why disallow | |
3754 | * system("ls") in scripts run from setuid things? | |
3755 | * Or, is this run before we check arguments and set suidscript? | |
3756 | * What about SETUID_SCRIPTS_ARE_SECURE_NOW: could we use fdscript then? | |
3757 | * (We never have suidscript, can we be sure to have fdscript?) | |
3758 | * Or must then go by UID checks? See comments in forbid_setid also. | |
3759 | */ | |
748a9306 | 3760 | } |
79072805 | 3761 | |
a0643315 JH |
3762 | /* This is used very early in the lifetime of the program, |
3763 | * before even the options are parsed, so PL_tainting has | |
b0891165 | 3764 | * not been initialized properly. */ |
af419de7 | 3765 | bool |
22f7c9c9 JH |
3766 | Perl_doing_taint(int argc, char *argv[], char *envp[]) |
3767 | { | |
c3446a78 JH |
3768 | #ifndef PERL_IMPLICIT_SYS |
3769 | /* If we have PERL_IMPLICIT_SYS we can't call getuid() et alia | |
3770 | * before we have an interpreter-- and the whole point of this | |
3771 | * function is to be called at such an early stage. If you are on | |
3772 | * a system with PERL_IMPLICIT_SYS but you do have a concept of | |
3773 | * "tainted because running with altered effective ids', you'll | |
3774 | * have to add your own checks somewhere in here. The two most | |
3775 | * known samples of 'implicitness' are Win32 and NetWare, neither | |
3776 | * of which has much of concept of 'uids'. */ | |
af419de7 | 3777 | int uid = PerlProc_getuid(); |
22f7c9c9 | 3778 | int euid = PerlProc_geteuid(); |
af419de7 | 3779 | int gid = PerlProc_getgid(); |
22f7c9c9 JH |
3780 | int egid = PerlProc_getegid(); |
3781 | ||
3782 | #ifdef VMS | |
af419de7 | 3783 | uid |= gid << 16; |
22f7c9c9 JH |
3784 | euid |= egid << 16; |
3785 | #endif | |
3786 | if (uid && (euid != uid || egid != gid)) | |
3787 | return 1; | |
c3446a78 | 3788 | #endif /* !PERL_IMPLICIT_SYS */ |
af419de7 JH |
3789 | /* This is a really primitive check; environment gets ignored only |
3790 | * if -T are the first chars together; otherwise one gets | |
3791 | * "Too late" message. */ | |
22f7c9c9 JH |
3792 | if ( argc > 1 && argv[1][0] == '-' |
3793 | && (argv[1][1] == 't' || argv[1][1] == 'T') ) | |
3794 | return 1; | |
3795 | return 0; | |
3796 | } | |
22f7c9c9 | 3797 | |
76e3520e | 3798 | STATIC void |
cea2e8a9 | 3799 | S_forbid_setid(pTHX_ char *s) |
bbce6d69 | 3800 | { |
ae3f3efd | 3801 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
3280af22 | 3802 | if (PL_euid != PL_uid) |
cea2e8a9 | 3803 | Perl_croak(aTHX_ "No %s allowed while running setuid", s); |
3280af22 | 3804 | if (PL_egid != PL_gid) |
cea2e8a9 | 3805 | Perl_croak(aTHX_ "No %s allowed while running setgid", s); |
ae3f3efd PS |
3806 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ |
3807 | /* PSz 29 Feb 04 | |
3808 | * Checks for UID/GID above "wrong": why disallow | |
3809 | * perl -e 'print "Hello\n"' | |
3810 | * from within setuid things?? Simply drop them: replaced by | |
3811 | * fdscript/suidscript and #ifdef IAMSUID checks below. | |
3812 | * | |
3813 | * This may be too late for command-line switches. Will catch those on | |
3814 | * the #! line, after finding the script name and setting up | |
3815 | * fdscript/suidscript. Note that suidperl does not get around to | |
3816 | * parsing (and checking) the switches on the #! line, but checks that | |
3817 | * the two sets are identical. | |
3818 | * | |
3819 | * With SETUID_SCRIPTS_ARE_SECURE_NOW, could we use fdscript, also or | |
3820 | * instead, or would that be "too late"? (We never have suidscript, can | |
3821 | * we be sure to have fdscript?) | |
3822 | * | |
3823 | * Catch things with suidscript (in descendant of suidperl), even with | |
3824 | * right UID/GID. Was already checked in suidperl, with #ifdef IAMSUID, | |
3825 | * below; but I am paranoid. | |
3826 | * | |
3827 | * Also see comments about root running a setuid script, elsewhere. | |
3828 | */ | |
3829 | if (PL_suidscript >= 0) | |
3830 | Perl_croak(aTHX_ "No %s allowed with (suid) fdscript", s); | |
3831 | #ifdef IAMSUID | |
3832 | /* PSz 11 Nov 03 Catch it in suidperl, always! */ | |
3833 | Perl_croak(aTHX_ "No %s allowed in suidperl", s); | |
3834 | #endif /* IAMSUID */ | |
bbce6d69 | 3835 | } |
3836 | ||
1ee4443e IZ |
3837 | void |
3838 | Perl_init_debugger(pTHX) | |
748a9306 | 3839 | { |
1ee4443e IZ |
3840 | HV *ostash = PL_curstash; |
3841 | ||
3280af22 | 3842 | PL_curstash = PL_debstash; |
7619c85e | 3843 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("DB::args", GV_ADDMULTI, SVt_PVAV)))); |
3280af22 | 3844 | AvREAL_off(PL_dbargs); |
7619c85e RG |
3845 | PL_DBgv = gv_fetchpv("DB::DB", GV_ADDMULTI, SVt_PVGV); |
3846 | PL_DBline = gv_fetchpv("DB::dbline", GV_ADDMULTI, SVt_PVAV); | |
3847 | PL_DBsub = gv_HVadd(gv_fetchpv("DB::sub", GV_ADDMULTI, SVt_PVHV)); | |
1ee4443e | 3848 | sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */ |
7619c85e | 3849 | PL_DBsingle = GvSV((gv_fetchpv("DB::single", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 3850 | sv_setiv(PL_DBsingle, 0); |
7619c85e | 3851 | PL_DBtrace = GvSV((gv_fetchpv("DB::trace", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 3852 | sv_setiv(PL_DBtrace, 0); |
7619c85e | 3853 | PL_DBsignal = GvSV((gv_fetchpv("DB::signal", GV_ADDMULTI, SVt_PV))); |
ac27b0f5 | 3854 | sv_setiv(PL_DBsignal, 0); |
bf9cdc68 | 3855 | PL_DBassertion = GvSV((gv_fetchpv("DB::assertion", GV_ADDMULTI, SVt_PV))); |
06492da6 | 3856 | sv_setiv(PL_DBassertion, 0); |
1ee4443e | 3857 | PL_curstash = ostash; |
352d5a3a LW |
3858 | } |
3859 | ||
2ce36478 SM |
3860 | #ifndef STRESS_REALLOC |
3861 | #define REASONABLE(size) (size) | |
3862 | #else | |
3863 | #define REASONABLE(size) (1) /* unreasonable */ | |
3864 | #endif | |
3865 | ||
11343788 | 3866 | void |
cea2e8a9 | 3867 | Perl_init_stacks(pTHX) |
79072805 | 3868 | { |
e336de0d | 3869 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 3870 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 3871 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
3872 | PL_curstackinfo->si_type = PERLSI_MAIN; |
3873 | PL_curstack = PL_curstackinfo->si_stack; | |
3874 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 3875 | |
3280af22 NIS |
3876 | PL_stack_base = AvARRAY(PL_curstack); |
3877 | PL_stack_sp = PL_stack_base; | |
3878 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 3879 | |
3280af22 NIS |
3880 | New(50,PL_tmps_stack,REASONABLE(128),SV*); |
3881 | PL_tmps_floor = -1; | |
3882 | PL_tmps_ix = -1; | |
3883 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 3884 | |
3280af22 NIS |
3885 | New(54,PL_markstack,REASONABLE(32),I32); |
3886 | PL_markstack_ptr = PL_markstack; | |
3887 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 3888 | |
ce2f7c3b | 3889 | SET_MARK_OFFSET; |
e336de0d | 3890 | |
3280af22 NIS |
3891 | New(54,PL_scopestack,REASONABLE(32),I32); |
3892 | PL_scopestack_ix = 0; | |
3893 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 3894 | |
3280af22 NIS |
3895 | New(54,PL_savestack,REASONABLE(128),ANY); |
3896 | PL_savestack_ix = 0; | |
3897 | PL_savestack_max = REASONABLE(128); | |
378cc40b | 3898 | } |
33b78306 | 3899 | |
2ce36478 SM |
3900 | #undef REASONABLE |
3901 | ||
76e3520e | 3902 | STATIC void |
cea2e8a9 | 3903 | S_nuke_stacks(pTHX) |
6e72f9df | 3904 | { |
3280af22 NIS |
3905 | while (PL_curstackinfo->si_next) |
3906 | PL_curstackinfo = PL_curstackinfo->si_next; | |
3907 | while (PL_curstackinfo) { | |
3908 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 3909 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
3910 | Safefree(PL_curstackinfo->si_cxstack); |
3911 | Safefree(PL_curstackinfo); | |
3912 | PL_curstackinfo = p; | |
e336de0d | 3913 | } |
3280af22 NIS |
3914 | Safefree(PL_tmps_stack); |
3915 | Safefree(PL_markstack); | |
3916 | Safefree(PL_scopestack); | |
3917 | Safefree(PL_savestack); | |
378cc40b | 3918 | } |
33b78306 | 3919 | |
76e3520e | 3920 | STATIC void |
cea2e8a9 | 3921 | S_init_lexer(pTHX) |
8990e307 | 3922 | { |
06039172 | 3923 | PerlIO *tmpfp; |
3280af22 NIS |
3924 | tmpfp = PL_rsfp; |
3925 | PL_rsfp = Nullfp; | |
3926 | lex_start(PL_linestr); | |
3927 | PL_rsfp = tmpfp; | |
79cb57f6 | 3928 | PL_subname = newSVpvn("main",4); |
8990e307 LW |
3929 | } |
3930 | ||
76e3520e | 3931 | STATIC void |
cea2e8a9 | 3932 | S_init_predump_symbols(pTHX) |
45d8adaa | 3933 | { |
93a17b20 | 3934 | GV *tmpgv; |
af8c498a | 3935 | IO *io; |
79072805 | 3936 | |
864dbfa3 | 3937 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
3280af22 NIS |
3938 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
3939 | GvMULTI_on(PL_stdingv); | |
af8c498a | 3940 | io = GvIOp(PL_stdingv); |
a04651f4 | 3941 | IoTYPE(io) = IoTYPE_RDONLY; |
af8c498a | 3942 | IoIFP(io) = PerlIO_stdin(); |
adbc6bb1 | 3943 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 3944 | GvMULTI_on(tmpgv); |
af8c498a | 3945 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 3946 | |
85e6fe83 | 3947 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 3948 | GvMULTI_on(tmpgv); |
af8c498a | 3949 | io = GvIOp(tmpgv); |
a04651f4 | 3950 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 3951 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); |
4633a7c4 | 3952 | setdefout(tmpgv); |
adbc6bb1 | 3953 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 3954 | GvMULTI_on(tmpgv); |
af8c498a | 3955 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 3956 | |
bf49b057 GS |
3957 | PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
3958 | GvMULTI_on(PL_stderrgv); | |
3959 | io = GvIOp(PL_stderrgv); | |
a04651f4 | 3960 | IoTYPE(io) = IoTYPE_WRONLY; |
af8c498a | 3961 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
adbc6bb1 | 3962 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 3963 | GvMULTI_on(tmpgv); |
af8c498a | 3964 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 3965 | |
3280af22 | 3966 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f | 3967 | |
bf4acbe4 GS |
3968 | if (PL_osname) |
3969 | Safefree(PL_osname); | |
3970 | PL_osname = savepv(OSNAME); | |
79072805 | 3971 | } |
33b78306 | 3972 | |
a11ec5a9 RGS |
3973 | void |
3974 | Perl_init_argv_symbols(pTHX_ register int argc, register char **argv) | |
33b78306 | 3975 | { |
79072805 | 3976 | char *s; |
79072805 | 3977 | argc--,argv++; /* skip name of script */ |
3280af22 | 3978 | if (PL_doswitches) { |
79072805 LW |
3979 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
3980 | if (!argv[0][1]) | |
3981 | break; | |
379d538a | 3982 | if (argv[0][1] == '-' && !argv[0][2]) { |
79072805 LW |
3983 | argc--,argv++; |
3984 | break; | |
3985 | } | |
155aba94 | 3986 | if ((s = strchr(argv[0], '='))) { |
79072805 | 3987 | *s++ = '\0'; |
85e6fe83 | 3988 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
3989 | } |
3990 | else | |
85e6fe83 | 3991 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 3992 | } |
79072805 | 3993 | } |
a11ec5a9 RGS |
3994 | if ((PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV))) { |
3995 | GvMULTI_on(PL_argvgv); | |
3996 | (void)gv_AVadd(PL_argvgv); | |
3997 | av_clear(GvAVn(PL_argvgv)); | |
3998 | for (; argc > 0; argc--,argv++) { | |
3999 | SV *sv = newSVpv(argv[0],0); | |
4000 | av_push(GvAVn(PL_argvgv),sv); | |
ce81ff12 JH |
4001 | if (!(PL_unicode & PERL_UNICODE_LOCALE_FLAG) || PL_utf8locale) { |
4002 | if (PL_unicode & PERL_UNICODE_ARGV_FLAG) | |
4003 | SvUTF8_on(sv); | |
4004 | } | |
a05d7ebb JH |
4005 | if (PL_unicode & PERL_UNICODE_WIDESYSCALLS_FLAG) /* Sarathy? */ |
4006 | (void)sv_utf8_decode(sv); | |
a11ec5a9 RGS |
4007 | } |
4008 | } | |
4009 | } | |
4010 | ||
04fee9b5 NIS |
4011 | #ifdef HAS_PROCSELFEXE |
4012 | /* This is a function so that we don't hold on to MAXPATHLEN | |
8338e367 | 4013 | bytes of stack longer than necessary |
04fee9b5 NIS |
4014 | */ |
4015 | STATIC void | |
4016 | S_procself_val(pTHX_ SV *sv, char *arg0) | |
4017 | { | |
4018 | char buf[MAXPATHLEN]; | |
d13a6521 | 4019 | int len = readlink(PROCSELFEXE_PATH, buf, sizeof(buf) - 1); |
75745e22 TJ |
4020 | |
4021 | /* On Playstation2 Linux V1.0 (kernel 2.2.1) readlink(/proc/self/exe) | |
4022 | includes a spurious NUL which will cause $^X to fail in system | |
4023 | or backticks (this will prevent extensions from being built and | |
4024 | many tests from working). readlink is not meant to add a NUL. | |
4025 | Normal readlink works fine. | |
4026 | */ | |
4027 | if (len > 0 && buf[len-1] == '\0') { | |
4028 | len--; | |
4029 | } | |
4030 | ||
d103ec31 JH |
4031 | /* FreeBSD's implementation is acknowledged to be imperfect, sometimes |
4032 | returning the text "unknown" from the readlink rather than the path | |
78cb7c00 | 4033 | to the executable (or returning an error from the readlink). Any valid |
d103ec31 JH |
4034 | path has a '/' in it somewhere, so use that to validate the result. |
4035 | See http://www.freebsd.org/cgi/query-pr.cgi?pr=35703 | |
4036 | */ | |
78cb7c00 | 4037 | if (len > 0 && memchr(buf, '/', len)) { |
04fee9b5 NIS |
4038 | sv_setpvn(sv,buf,len); |
4039 | } | |
4040 | else { | |
4041 | sv_setpv(sv,arg0); | |
4042 | } | |
4043 | } | |
4044 | #endif /* HAS_PROCSELFEXE */ | |
4045 | ||
a11ec5a9 RGS |
4046 | STATIC void |
4047 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) | |
4048 | { | |
4049 | char *s; | |
4050 | SV *sv; | |
4051 | GV* tmpgv; | |
a11ec5a9 | 4052 | |
3280af22 NIS |
4053 | PL_toptarget = NEWSV(0,0); |
4054 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
4055 | sv_setpvn(PL_toptarget, "", 0); | |
4056 | PL_bodytarget = NEWSV(0,0); | |
4057 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
4058 | sv_setpvn(PL_bodytarget, "", 0); | |
4059 | PL_formtarget = PL_bodytarget; | |
79072805 | 4060 | |
bbce6d69 | 4061 | TAINT; |
a11ec5a9 RGS |
4062 | |
4063 | init_argv_symbols(argc,argv); | |
4064 | ||
155aba94 | 4065 | if ((tmpgv = gv_fetchpv("0",TRUE, SVt_PV))) { |
bf4acbe4 GS |
4066 | #ifdef MACOS_TRADITIONAL |
4067 | /* $0 is not majick on a Mac */ | |
4068 | sv_setpv(GvSV(tmpgv),MacPerl_MPWFileName(PL_origfilename)); | |
4069 | #else | |
3280af22 | 4070 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 | 4071 | magicname("0", "0", 1); |
bf4acbe4 | 4072 | #endif |
79072805 | 4073 | } |
04fee9b5 NIS |
4074 | if ((tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))) {/* $^X */ |
4075 | #ifdef HAS_PROCSELFEXE | |
4076 | S_procself_val(aTHX_ GvSV(tmpgv), PL_origargv[0]); | |
4077 | #else | |
8338e367 | 4078 | #ifdef OS2 |
23da6c43 | 4079 | sv_setpv(GvSV(tmpgv), os2_execname(aTHX)); |
8338e367 JH |
4080 | #else |
4081 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); | |
4082 | #endif | |
04fee9b5 NIS |
4083 | #endif |
4084 | } | |
155aba94 | 4085 | if ((PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV))) { |
79072805 | 4086 | HV *hv; |
3280af22 NIS |
4087 | GvMULTI_on(PL_envgv); |
4088 | hv = GvHVn(PL_envgv); | |
14befaf4 | 4089 | hv_magic(hv, Nullgv, PERL_MAGIC_env); |
2f42fcb0 | 4090 | #ifndef PERL_MICRO |
fa6a1c44 | 4091 | #ifdef USE_ENVIRON_ARRAY |
4633a7c4 LW |
4092 | /* Note that if the supplied env parameter is actually a copy |
4093 | of the global environ then it may now point to free'd memory | |
4094 | if the environment has been modified since. To avoid this | |
4095 | problem we treat env==NULL as meaning 'use the default' | |
4096 | */ | |
4097 | if (!env) | |
4098 | env = environ; | |
4efc5df6 GS |
4099 | if (env != environ |
4100 | # ifdef USE_ITHREADS | |
4101 | && PL_curinterp == aTHX | |
4102 | # endif | |
4103 | ) | |
4104 | { | |
79072805 | 4105 | environ[0] = Nullch; |
4efc5df6 | 4106 | } |
9b4eeda5 MB |
4107 | if (env) { |
4108 | char** origenv = environ; | |
764df951 | 4109 | for (; *env; env++) { |
9b4eeda5 | 4110 | if (!(s = strchr(*env,'=')) || s == *env) |
79072805 | 4111 | continue; |
7da0e383 | 4112 | #if defined(MSDOS) && !defined(DJGPP) |
61968511 | 4113 | *s = '\0'; |
137443ea | 4114 | (void)strupr(*env); |
61968511 | 4115 | *s = '='; |
137443ea | 4116 | #endif |
61968511 | 4117 | sv = newSVpv(s+1, 0); |
79072805 | 4118 | (void)hv_store(hv, *env, s - *env, sv, 0); |
61968511 GA |
4119 | if (env != environ) |
4120 | mg_set(sv); | |
9b4eeda5 MB |
4121 | if (origenv != environ) { |
4122 | /* realloc has shifted us */ | |
4123 | env = (env - origenv) + environ; | |
4124 | origenv = environ; | |
4125 | } | |
764df951 | 4126 | } |
9b4eeda5 | 4127 | } |
103a7189 | 4128 | #endif /* USE_ENVIRON_ARRAY */ |
2f42fcb0 | 4129 | #endif /* !PERL_MICRO */ |
79072805 | 4130 | } |
bbce6d69 | 4131 | TAINT_NOT; |
306196c3 MS |
4132 | if ((tmpgv = gv_fetchpv("$",TRUE, SVt_PV))) { |
4133 | SvREADONLY_off(GvSV(tmpgv)); | |
7766f137 | 4134 | sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid()); |
306196c3 MS |
4135 | SvREADONLY_on(GvSV(tmpgv)); |
4136 | } | |
4d76a344 RGS |
4137 | #ifdef THREADS_HAVE_PIDS |
4138 | PL_ppid = (IV)getppid(); | |
4139 | #endif | |
2710853f MJD |
4140 | |
4141 | /* touch @F array to prevent spurious warnings 20020415 MJD */ | |
4142 | if (PL_minus_a) { | |
4143 | (void) get_av("main::F", TRUE | GV_ADDMULTI); | |
4144 | } | |
4145 | /* touch @- and @+ arrays to prevent spurious warnings 20020415 MJD */ | |
4146 | (void) get_av("main::-", TRUE | GV_ADDMULTI); | |
4147 | (void) get_av("main::+", TRUE | GV_ADDMULTI); | |
33b78306 | 4148 | } |
34de22dd | 4149 | |
76e3520e | 4150 | STATIC void |
cea2e8a9 | 4151 | S_init_perllib(pTHX) |
34de22dd | 4152 | { |
85e6fe83 | 4153 | char *s; |
3280af22 | 4154 | if (!PL_tainting) { |
552a7a9b | 4155 | #ifndef VMS |
76e3520e | 4156 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 | 4157 | if (s) |
574c798a | 4158 | incpush(s, TRUE, TRUE, TRUE); |
85e6fe83 | 4159 | else |
574c798a | 4160 | incpush(PerlEnv_getenv("PERLLIB"), FALSE, FALSE, TRUE); |
552a7a9b | 4161 | #else /* VMS */ |
4162 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
4163 | * "natural" VMS idiom for a Unix path string. We allow each | |
4164 | * element to be a set of |-separated directories for compatibility. | |
4165 | */ | |
4166 | char buf[256]; | |
4167 | int idx = 0; | |
4168 | if (my_trnlnm("PERL5LIB",buf,0)) | |
574c798a | 4169 | do { incpush(buf,TRUE,TRUE,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 4170 | else |
574c798a | 4171 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE,FALSE,TRUE); |
552a7a9b | 4172 | #endif /* VMS */ |
85e6fe83 | 4173 | } |
34de22dd | 4174 | |
c90c0ff4 | 4175 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
65f19062 | 4176 | ARCHLIB PRIVLIB SITEARCH SITELIB VENDORARCH and VENDORLIB |
df5cef82 | 4177 | */ |
4633a7c4 | 4178 | #ifdef APPLLIB_EXP |
574c798a | 4179 | incpush(APPLLIB_EXP, TRUE, TRUE, TRUE); |
16d20bd9 | 4180 | #endif |
4633a7c4 | 4181 | |
fed7345c | 4182 | #ifdef ARCHLIB_EXP |
574c798a | 4183 | incpush(ARCHLIB_EXP, FALSE, FALSE, TRUE); |
a0d0e21e | 4184 | #endif |
bf4acbe4 GS |
4185 | #ifdef MACOS_TRADITIONAL |
4186 | { | |
c623ac67 | 4187 | Stat_t tmpstatbuf; |
bf4acbe4 GS |
4188 | SV * privdir = NEWSV(55, 0); |
4189 | char * macperl = PerlEnv_getenv("MACPERL"); | |
4190 | ||
4191 | if (!macperl) | |
4192 | macperl = ""; | |
4193 | ||
4194 | Perl_sv_setpvf(aTHX_ privdir, "%slib:", macperl); | |
4195 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
574c798a | 4196 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE); |
bf4acbe4 GS |
4197 | Perl_sv_setpvf(aTHX_ privdir, "%ssite_perl:", macperl); |
4198 | if (PerlLIO_stat(SvPVX(privdir), &tmpstatbuf) >= 0 && S_ISDIR(tmpstatbuf.st_mode)) | |
574c798a | 4199 | incpush(SvPVX(privdir), TRUE, FALSE, TRUE); |
ac27b0f5 | 4200 | |
bf4acbe4 GS |
4201 | SvREFCNT_dec(privdir); |
4202 | } | |
4203 | if (!PL_tainting) | |
574c798a | 4204 | incpush(":", FALSE, FALSE, TRUE); |
bf4acbe4 | 4205 | #else |
fed7345c | 4206 | #ifndef PRIVLIB_EXP |
65f19062 | 4207 | # define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" |
34de22dd | 4208 | #endif |
ac27b0f5 | 4209 | #if defined(WIN32) |
574c798a | 4210 | incpush(PRIVLIB_EXP, TRUE, FALSE, TRUE); |
00dc2f4f | 4211 | #else |
574c798a | 4212 | incpush(PRIVLIB_EXP, FALSE, FALSE, TRUE); |
00dc2f4f | 4213 | #endif |
4633a7c4 | 4214 | |
65f19062 | 4215 | #ifdef SITEARCH_EXP |
3b290362 GS |
4216 | /* sitearch is always relative to sitelib on Windows for |
4217 | * DLL-based path intuition to work correctly */ | |
4218 | # if !defined(WIN32) | |
574c798a | 4219 | incpush(SITEARCH_EXP, FALSE, FALSE, TRUE); |
65f19062 GS |
4220 | # endif |
4221 | #endif | |
4222 | ||
4633a7c4 | 4223 | #ifdef SITELIB_EXP |
65f19062 | 4224 | # if defined(WIN32) |
574c798a SR |
4225 | /* this picks up sitearch as well */ |
4226 | incpush(SITELIB_EXP, TRUE, FALSE, TRUE); | |
65f19062 | 4227 | # else |
574c798a | 4228 | incpush(SITELIB_EXP, FALSE, FALSE, TRUE); |
65f19062 GS |
4229 | # endif |
4230 | #endif | |
189d1e8d | 4231 | |
65f19062 | 4232 | #ifdef SITELIB_STEM /* Search for version-specific dirs below here */ |
574c798a | 4233 | incpush(SITELIB_STEM, FALSE, TRUE, TRUE); |
81c6dfba | 4234 | #endif |
65f19062 GS |
4235 | |
4236 | #ifdef PERL_VENDORARCH_EXP | |
4ea817c6 | 4237 | /* vendorarch is always relative to vendorlib on Windows for |
3b290362 GS |
4238 | * DLL-based path intuition to work correctly */ |
4239 | # if !defined(WIN32) | |
574c798a | 4240 | incpush(PERL_VENDORARCH_EXP, FALSE, FALSE, TRUE); |
65f19062 | 4241 | # endif |
4b03c463 | 4242 | #endif |
65f19062 GS |
4243 | |
4244 | #ifdef PERL_VENDORLIB_EXP | |
4245 | # if defined(WIN32) | |
574c798a | 4246 | incpush(PERL_VENDORLIB_EXP, TRUE, FALSE, TRUE); /* this picks up vendorarch as well */ |
65f19062 | 4247 | # else |
574c798a | 4248 | incpush(PERL_VENDORLIB_EXP, FALSE, FALSE, TRUE); |
65f19062 | 4249 | # endif |
a3635516 | 4250 | #endif |
65f19062 GS |
4251 | |
4252 | #ifdef PERL_VENDORLIB_STEM /* Search for version-specific dirs below here */ | |
574c798a | 4253 | incpush(PERL_VENDORLIB_STEM, FALSE, TRUE, TRUE); |
00dc2f4f | 4254 | #endif |
65f19062 | 4255 | |
3b777bb4 | 4256 | #ifdef PERL_OTHERLIBDIRS |
574c798a | 4257 | incpush(PERL_OTHERLIBDIRS, TRUE, TRUE, TRUE); |
3b777bb4 GS |
4258 | #endif |
4259 | ||
3280af22 | 4260 | if (!PL_tainting) |
574c798a | 4261 | incpush(".", FALSE, FALSE, TRUE); |
bf4acbe4 | 4262 | #endif /* MACOS_TRADITIONAL */ |
774d564b | 4263 | } |
4264 | ||
ed79a026 | 4265 | #if defined(DOSISH) || defined(EPOC) |
774d564b | 4266 | # define PERLLIB_SEP ';' |
4267 | #else | |
4268 | # if defined(VMS) | |
4269 | # define PERLLIB_SEP '|' | |
4270 | # else | |
bf4acbe4 GS |
4271 | # if defined(MACOS_TRADITIONAL) |
4272 | # define PERLLIB_SEP ',' | |
4273 | # else | |
4274 | # define PERLLIB_SEP ':' | |
4275 | # endif | |
774d564b | 4276 | # endif |
4277 | #endif | |
4278 | #ifndef PERLLIB_MANGLE | |
4279 | # define PERLLIB_MANGLE(s,n) (s) | |
ac27b0f5 | 4280 | #endif |
774d564b | 4281 | |
76e3520e | 4282 | STATIC void |
574c798a | 4283 | S_incpush(pTHX_ char *p, int addsubdirs, int addoldvers, int usesep) |
774d564b | 4284 | { |
4285 | SV *subdir = Nullsv; | |
774d564b | 4286 | |
3b290362 | 4287 | if (!p || !*p) |
774d564b | 4288 | return; |
4289 | ||
9c8a64f0 | 4290 | if (addsubdirs || addoldvers) { |
00db4c45 | 4291 | subdir = sv_newmortal(); |
774d564b | 4292 | } |
4293 | ||
4294 | /* Break at all separators */ | |
4295 | while (p && *p) { | |
8c52afec | 4296 | SV *libdir = NEWSV(55,0); |
774d564b | 4297 | char *s; |
4298 | ||
4299 | /* skip any consecutive separators */ | |
574c798a SR |
4300 | if (usesep) { |
4301 | while ( *p == PERLLIB_SEP ) { | |
4302 | /* Uncomment the next line for PATH semantics */ | |
4303 | /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */ | |
4304 | p++; | |
4305 | } | |
774d564b | 4306 | } |
4307 | ||
574c798a | 4308 | if ( usesep && (s = strchr(p, PERLLIB_SEP)) != Nullch ) { |
774d564b | 4309 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), |
4310 | (STRLEN)(s - p)); | |
4311 | p = s + 1; | |
4312 | } | |
4313 | else { | |
4314 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
4315 | p = Nullch; /* break out */ | |
4316 | } | |
bf4acbe4 | 4317 | #ifdef MACOS_TRADITIONAL |
e69a2255 JH |
4318 | if (!strchr(SvPVX(libdir), ':')) { |
4319 | char buf[256]; | |
4320 | ||
4321 | sv_setpv(libdir, MacPerl_CanonDir(SvPVX(libdir), buf, 0)); | |
4322 | } | |
bf4acbe4 GS |
4323 | if (SvPVX(libdir)[SvCUR(libdir)-1] != ':') |
4324 | sv_catpv(libdir, ":"); | |
4325 | #endif | |
774d564b | 4326 | |
4327 | /* | |
4328 | * BEFORE pushing libdir onto @INC we may first push version- and | |
4329 | * archname-specific sub-directories. | |
4330 | */ | |
9c8a64f0 | 4331 | if (addsubdirs || addoldvers) { |
29d82f8d | 4332 | #ifdef PERL_INC_VERSION_LIST |
8353b874 GS |
4333 | /* Configure terminates PERL_INC_VERSION_LIST with a NULL */ |
4334 | const char *incverlist[] = { PERL_INC_VERSION_LIST }; | |
29d82f8d GS |
4335 | const char **incver; |
4336 | #endif | |
c623ac67 | 4337 | Stat_t tmpstatbuf; |
aa689395 | 4338 | #ifdef VMS |
4339 | char *unix; | |
4340 | STRLEN len; | |
774d564b | 4341 | |
2d8e6c8d | 4342 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 | 4343 | len = strlen(unix); |
4344 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
4345 | sv_usepvn(libdir,unix,len); | |
4346 | } | |
4347 | else | |
bf49b057 | 4348 | PerlIO_printf(Perl_error_log, |
aa689395 | 4349 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 4350 | SvPV(libdir,len)); |
aa689395 | 4351 | #endif |
9c8a64f0 | 4352 | if (addsubdirs) { |
bf4acbe4 GS |
4353 | #ifdef MACOS_TRADITIONAL |
4354 | #define PERL_AV_SUFFIX_FMT "" | |
084592ab CN |
4355 | #define PERL_ARCH_FMT "%s:" |
4356 | #define PERL_ARCH_FMT_PATH PERL_FS_VER_FMT PERL_AV_SUFFIX_FMT | |
bf4acbe4 GS |
4357 | #else |
4358 | #define PERL_AV_SUFFIX_FMT "/" | |
4359 | #define PERL_ARCH_FMT "/%s" | |
084592ab | 4360 | #define PERL_ARCH_FMT_PATH PERL_AV_SUFFIX_FMT PERL_FS_VER_FMT |
bf4acbe4 | 4361 | #endif |
9c8a64f0 | 4362 | /* .../version/archname if -d .../version/archname */ |
084592ab | 4363 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH PERL_ARCH_FMT, |
9c8a64f0 GS |
4364 | libdir, |
4365 | (int)PERL_REVISION, (int)PERL_VERSION, | |
4366 | (int)PERL_SUBVERSION, ARCHNAME); | |
4367 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && | |
4368 | S_ISDIR(tmpstatbuf.st_mode)) | |
4369 | av_push(GvAVn(PL_incgv), newSVsv(subdir)); | |
4b03c463 | 4370 | |
9c8a64f0 | 4371 | /* .../version if -d .../version */ |
084592ab | 4372 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT_PATH, libdir, |
9c8a64f0 GS |
4373 | (int)PERL_REVISION, (int)PERL_VERSION, |
4374 | (int)PERL_SUBVERSION); | |
4375 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && | |
4376 | S_ISDIR(tmpstatbuf.st_mode)) | |
4377 | av_push(GvAVn(PL_incgv), newSVsv(subdir)); | |
4378 | ||
4379 | /* .../archname if -d .../archname */ | |
bf4acbe4 | 4380 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, ARCHNAME); |
29d82f8d GS |
4381 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
4382 | S_ISDIR(tmpstatbuf.st_mode)) | |
4383 | av_push(GvAVn(PL_incgv), newSVsv(subdir)); | |
29d82f8d | 4384 | } |
9c8a64f0 | 4385 | |
9c8a64f0 | 4386 | #ifdef PERL_INC_VERSION_LIST |
ccc2aad8 | 4387 | if (addoldvers) { |
9c8a64f0 GS |
4388 | for (incver = incverlist; *incver; incver++) { |
4389 | /* .../xxx if -d .../xxx */ | |
bf4acbe4 | 4390 | Perl_sv_setpvf(aTHX_ subdir, "%"SVf PERL_ARCH_FMT, libdir, *incver); |
9c8a64f0 GS |
4391 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
4392 | S_ISDIR(tmpstatbuf.st_mode)) | |
4393 | av_push(GvAVn(PL_incgv), newSVsv(subdir)); | |
4394 | } | |
4395 | } | |
29d82f8d | 4396 | #endif |
774d564b | 4397 | } |
4398 | ||
4399 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 4400 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 4401 | } |
34de22dd | 4402 | } |
93a17b20 | 4403 | |
4d1ff10f | 4404 | #ifdef USE_5005THREADS |
76e3520e | 4405 | STATIC struct perl_thread * |
cea2e8a9 | 4406 | S_init_main_thread(pTHX) |
199100c8 | 4407 | { |
c5be433b | 4408 | #if !defined(PERL_IMPLICIT_CONTEXT) |
52e1cb5e | 4409 | struct perl_thread *thr; |
cea2e8a9 | 4410 | #endif |
199100c8 MB |
4411 | XPV *xpv; |
4412 | ||
52e1cb5e | 4413 | Newz(53, thr, 1, struct perl_thread); |
533c011a | 4414 | PL_curcop = &PL_compiling; |
c5be433b | 4415 | thr->interp = PERL_GET_INTERP; |
199100c8 | 4416 | thr->cvcache = newHV(); |
54b9620d | 4417 | thr->threadsv = newAV(); |
940cb80d | 4418 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 MB |
4419 | thr->specific = newAV(); |
4420 | thr->flags = THRf_R_JOINABLE; | |
4421 | MUTEX_INIT(&thr->mutex); | |
4422 | /* Handcraft thrsv similarly to mess_sv */ | |
533c011a | 4423 | New(53, PL_thrsv, 1, SV); |
199100c8 | 4424 | Newz(53, xpv, 1, XPV); |
533c011a NIS |
4425 | SvFLAGS(PL_thrsv) = SVt_PV; |
4426 | SvANY(PL_thrsv) = (void*)xpv; | |
4427 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ | |
4428 | SvPVX(PL_thrsv) = (char*)thr; | |
4429 | SvCUR_set(PL_thrsv, sizeof(thr)); | |
4430 | SvLEN_set(PL_thrsv, sizeof(thr)); | |
4431 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ | |
4432 | thr->oursv = PL_thrsv; | |
4433 | PL_chopset = " \n-"; | |
3967c732 | 4434 | PL_dumpindent = 4; |
533c011a NIS |
4435 | |
4436 | MUTEX_LOCK(&PL_threads_mutex); | |
4437 | PL_nthreads++; | |
199100c8 MB |
4438 | thr->tid = 0; |
4439 | thr->next = thr; | |
4440 | thr->prev = thr; | |
8dcd6f7b | 4441 | thr->thr_done = 0; |
533c011a | 4442 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 | 4443 | |
4b026b9e | 4444 | #ifdef HAVE_THREAD_INTERN |
4f63d024 | 4445 | Perl_init_thread_intern(thr); |
235db74f GS |
4446 | #endif |
4447 | ||
4448 | #ifdef SET_THREAD_SELF | |
4449 | SET_THREAD_SELF(thr); | |
199100c8 MB |
4450 | #else |
4451 | thr->self = pthread_self(); | |
235db74f | 4452 | #endif /* SET_THREAD_SELF */ |
06d86050 | 4453 | PERL_SET_THX(thr); |
199100c8 MB |
4454 | |
4455 | /* | |
411caa50 JH |
4456 | * These must come after the thread self setting |
4457 | * because sv_setpvn does SvTAINT and the taint | |
4458 | * fields thread selfness being set. | |
199100c8 | 4459 | */ |
533c011a NIS |
4460 | PL_toptarget = NEWSV(0,0); |
4461 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
4462 | sv_setpvn(PL_toptarget, "", 0); | |
4463 | PL_bodytarget = NEWSV(0,0); | |
4464 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
4465 | sv_setpvn(PL_bodytarget, "", 0); | |
4466 | PL_formtarget = PL_bodytarget; | |
79cb57f6 | 4467 | thr->errsv = newSVpvn("", 0); |
78857c3c | 4468 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 | 4469 | |
533c011a | 4470 | PL_maxscream = -1; |
a2efc822 | 4471 | PL_peepp = MEMBER_TO_FPTR(Perl_peep); |
0b94c7bb GS |
4472 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
4473 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); | |
4474 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); | |
4475 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); | |
4476 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); | |
533c011a NIS |
4477 | PL_regindent = 0; |
4478 | PL_reginterp_cnt = 0; | |
5c0ca799 | 4479 | |
199100c8 MB |
4480 | return thr; |
4481 | } | |
4d1ff10f | 4482 | #endif /* USE_5005THREADS */ |
199100c8 | 4483 | |
93a17b20 | 4484 | void |
864dbfa3 | 4485 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 4486 | { |
971a9dd3 | 4487 | SV *atsv; |
57843af0 | 4488 | line_t oldline = CopLINE(PL_curcop); |
312caa8e | 4489 | CV *cv; |
22921e25 | 4490 | STRLEN len; |
6224f72b | 4491 | int ret; |
db36c5a1 | 4492 | dJMPENV; |
93a17b20 | 4493 | |
76e3520e | 4494 | while (AvFILL(paramList) >= 0) { |
312caa8e | 4495 | cv = (CV*)av_shift(paramList); |
ece599bd RGS |
4496 | if (PL_savebegin) { |
4497 | if (paramList == PL_beginav) { | |
059a8bb7 | 4498 | /* save PL_beginav for compiler */ |
ece599bd RGS |
4499 | if (! PL_beginav_save) |
4500 | PL_beginav_save = newAV(); | |
4501 | av_push(PL_beginav_save, (SV*)cv); | |
4502 | } | |
4503 | else if (paramList == PL_checkav) { | |
4504 | /* save PL_checkav for compiler */ | |
4505 | if (! PL_checkav_save) | |
4506 | PL_checkav_save = newAV(); | |
4507 | av_push(PL_checkav_save, (SV*)cv); | |
4508 | } | |
059a8bb7 JH |
4509 | } else { |
4510 | SAVEFREESV(cv); | |
4511 | } | |
14dd3ad8 GS |
4512 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
4513 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv); | |
4514 | #else | |
4515 | JMPENV_PUSH(ret); | |
4516 | #endif | |
6224f72b | 4517 | switch (ret) { |
312caa8e | 4518 | case 0: |
14dd3ad8 GS |
4519 | #ifndef PERL_FLEXIBLE_EXCEPTIONS |
4520 | call_list_body(cv); | |
4521 | #endif | |
971a9dd3 | 4522 | atsv = ERRSV; |
312caa8e CS |
4523 | (void)SvPV(atsv, len); |
4524 | if (len) { | |
4525 | PL_curcop = &PL_compiling; | |
57843af0 | 4526 | CopLINE_set(PL_curcop, oldline); |
312caa8e CS |
4527 | if (paramList == PL_beginav) |
4528 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
4529 | else | |
4f25aa18 GS |
4530 | Perl_sv_catpvf(aTHX_ atsv, |
4531 | "%s failed--call queue aborted", | |
7d30b5c4 | 4532 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
4533 | : paramList == PL_initav ? "INIT" |
4534 | : "END"); | |
312caa8e CS |
4535 | while (PL_scopestack_ix > oldscope) |
4536 | LEAVE; | |
14dd3ad8 | 4537 | JMPENV_POP; |
35c1215d | 4538 | Perl_croak(aTHX_ "%"SVf"", atsv); |
a0d0e21e | 4539 | } |
85e6fe83 | 4540 | break; |
6224f72b | 4541 | case 1: |
f86702cc | 4542 | STATUS_ALL_FAILURE; |
85e6fe83 | 4543 | /* FALL THROUGH */ |
6224f72b | 4544 | case 2: |
85e6fe83 | 4545 | /* my_exit() was called */ |
3280af22 | 4546 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 4547 | LEAVE; |
84902520 | 4548 | FREETMPS; |
3280af22 | 4549 | PL_curstash = PL_defstash; |
3280af22 | 4550 | PL_curcop = &PL_compiling; |
57843af0 | 4551 | CopLINE_set(PL_curcop, oldline); |
14dd3ad8 | 4552 | JMPENV_POP; |
cc3604b1 | 4553 | if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) { |
3280af22 | 4554 | if (paramList == PL_beginav) |
cea2e8a9 | 4555 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 4556 | else |
4f25aa18 | 4557 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
7d30b5c4 | 4558 | paramList == PL_checkav ? "CHECK" |
4f25aa18 GS |
4559 | : paramList == PL_initav ? "INIT" |
4560 | : "END"); | |
85e6fe83 | 4561 | } |
f86702cc | 4562 | my_exit_jump(); |
85e6fe83 | 4563 | /* NOTREACHED */ |
6224f72b | 4564 | case 3: |
312caa8e CS |
4565 | if (PL_restartop) { |
4566 | PL_curcop = &PL_compiling; | |
57843af0 | 4567 | CopLINE_set(PL_curcop, oldline); |
312caa8e | 4568 | JMPENV_JUMP(3); |
85e6fe83 | 4569 | } |
bf49b057 | 4570 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
4571 | FREETMPS; |
4572 | break; | |
8990e307 | 4573 | } |
14dd3ad8 | 4574 | JMPENV_POP; |
93a17b20 | 4575 | } |
93a17b20 | 4576 | } |
93a17b20 | 4577 | |
14dd3ad8 | 4578 | #ifdef PERL_FLEXIBLE_EXCEPTIONS |
312caa8e | 4579 | STATIC void * |
14dd3ad8 | 4580 | S_vcall_list_body(pTHX_ va_list args) |
312caa8e | 4581 | { |
312caa8e | 4582 | CV *cv = va_arg(args, CV*); |
14dd3ad8 GS |
4583 | return call_list_body(cv); |
4584 | } | |
4585 | #endif | |
312caa8e | 4586 | |
14dd3ad8 GS |
4587 | STATIC void * |
4588 | S_call_list_body(pTHX_ CV *cv) | |
4589 | { | |
312caa8e | 4590 | PUSHMARK(PL_stack_sp); |
864dbfa3 | 4591 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e CS |
4592 | return NULL; |
4593 | } | |
4594 | ||
f86702cc | 4595 | void |
864dbfa3 | 4596 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 4597 | { |
8b73bbec | 4598 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 4599 | thr, (unsigned long) status)); |
f86702cc | 4600 | switch (status) { |
4601 | case 0: | |
4602 | STATUS_ALL_SUCCESS; | |
4603 | break; | |
4604 | case 1: | |
4605 | STATUS_ALL_FAILURE; | |
4606 | break; | |
4607 | default: | |
4608 | STATUS_NATIVE_SET(status); | |
4609 | break; | |
4610 | } | |
4611 | my_exit_jump(); | |
4612 | } | |
4613 | ||
4614 | void | |
864dbfa3 | 4615 | Perl_my_failure_exit(pTHX) |
f86702cc | 4616 | { |
4617 | #ifdef VMS | |
4618 | if (vaxc$errno & 1) { | |
4fdae800 | 4619 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
4620 | STATUS_NATIVE_SET(44); | |
f86702cc | 4621 | } |
4622 | else { | |
69232efa | 4623 | if (!vaxc$errno) /* unlikely */ |
4fdae800 | 4624 | STATUS_NATIVE_SET(44); |
f86702cc | 4625 | else |
4fdae800 | 4626 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 4627 | } |
4628 | #else | |
9b599b2a | 4629 | int exitstatus; |
f86702cc | 4630 | if (errno & 255) |
4631 | STATUS_POSIX_SET(errno); | |
9b599b2a | 4632 | else { |
ac27b0f5 | 4633 | exitstatus = STATUS_POSIX >> 8; |
9b599b2a GS |
4634 | if (exitstatus & 255) |
4635 | STATUS_POSIX_SET(exitstatus); | |
4636 | else | |
4637 | STATUS_POSIX_SET(255); | |
4638 | } | |
f86702cc | 4639 | #endif |
4640 | my_exit_jump(); | |
93a17b20 LW |
4641 | } |
4642 | ||
76e3520e | 4643 | STATIC void |
cea2e8a9 | 4644 | S_my_exit_jump(pTHX) |
f86702cc | 4645 | { |
c09156bb | 4646 | register PERL_CONTEXT *cx; |
f86702cc | 4647 | I32 gimme; |
4648 | SV **newsp; | |
4649 | ||
3280af22 NIS |
4650 | if (PL_e_script) { |
4651 | SvREFCNT_dec(PL_e_script); | |
4652 | PL_e_script = Nullsv; | |
f86702cc | 4653 | } |
4654 | ||
3280af22 | 4655 | POPSTACK_TO(PL_mainstack); |
f86702cc | 4656 | if (cxstack_ix >= 0) { |
4657 | if (cxstack_ix > 0) | |
4658 | dounwind(0); | |
3280af22 | 4659 | POPBLOCK(cx,PL_curpm); |
f86702cc | 4660 | LEAVE; |
4661 | } | |
ff0cee69 | 4662 | |
6224f72b | 4663 | JMPENV_JUMP(2); |
f86702cc | 4664 | } |
873ef191 | 4665 | |
0cb96387 | 4666 | static I32 |
acfe0abc | 4667 | read_e_script(pTHX_ int idx, SV *buf_sv, int maxlen) |
873ef191 GS |
4668 | { |
4669 | char *p, *nl; | |
3280af22 | 4670 | p = SvPVX(PL_e_script); |
873ef191 | 4671 | nl = strchr(p, '\n'); |
3280af22 | 4672 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 4673 | if (nl-p == 0) { |
0cb96387 | 4674 | filter_del(read_e_script); |
873ef191 | 4675 | return 0; |
7dfe3f66 | 4676 | } |
873ef191 | 4677 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 4678 | sv_chop(PL_e_script, nl); |
873ef191 GS |
4679 | return 1; |
4680 | } |