Commit | Line | Data |
---|---|---|
a0d0e21e LW |
1 | /* perl.c |
2 | * | |
4eb8286e | 3 | * Copyright (c) 1987-1999 Larry Wall |
a687059c | 4 | * |
352d5a3a LW |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. | |
a687059c | 7 | * |
8d063cd8 LW |
8 | */ |
9 | ||
a0d0e21e LW |
10 | /* |
11 | * "A ship then new they built for him/of mithril and of elven glass" --Bilbo | |
12 | */ | |
45d8adaa | 13 | |
378cc40b | 14 | #include "EXTERN.h" |
864dbfa3 | 15 | #define PERL_IN_PERL_C |
378cc40b | 16 | #include "perl.h" |
e3321bb0 | 17 | #include "patchlevel.h" /* for local_patches */ |
378cc40b | 18 | |
df5cef82 | 19 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
a0d0e21e LW |
20 | #ifdef I_UNISTD |
21 | #include <unistd.h> | |
22 | #endif | |
a0d0e21e | 23 | |
54310121 | 24 | #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE) |
20ce7b12 | 25 | char *getenv (char *); /* Usually in <stdlib.h> */ |
54310121 | 26 | #endif |
27 | ||
0cb96387 GS |
28 | static I32 read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen); |
29 | ||
51fa4eea JH |
30 | #ifdef I_FCNTL |
31 | #include <fcntl.h> | |
32 | #endif | |
33 | #ifdef I_SYS_FILE | |
34 | #include <sys/file.h> | |
35 | #endif | |
36 | ||
a687059c LW |
37 | #ifdef IAMSUID |
38 | #ifndef DOSUID | |
39 | #define DOSUID | |
40 | #endif | |
41 | #endif | |
378cc40b | 42 | |
a687059c LW |
43 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
44 | #ifdef DOSUID | |
45 | #undef DOSUID | |
46 | #endif | |
47 | #endif | |
8d063cd8 | 48 | |
873ef191 | 49 | #ifdef PERL_OBJECT |
32e30700 GS |
50 | CPerlObj* |
51 | perl_alloc(struct IPerlMem* ipM, struct IPerlEnv* ipE, | |
52 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
53 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
54 | struct IPerlProc* ipP) | |
01f988be GS |
55 | { |
56 | CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP); | |
32e30700 | 57 | if (pPerl != NULL) |
01f988be | 58 | pPerl->Init(); |
79072805 | 59 | |
01f988be GS |
60 | return pPerl; |
61 | } | |
62 | #else | |
32e30700 GS |
63 | |
64 | #ifdef PERL_IMPLICIT_SYS | |
65 | PerlInterpreter * | |
66 | perl_alloc_using(struct IPerlMem* ipM, struct IPerlEnv* ipE, | |
67 | struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO, | |
68 | struct IPerlDir* ipD, struct IPerlSock* ipS, | |
69 | struct IPerlProc* ipP) | |
70 | { | |
71 | PerlInterpreter *my_perl; | |
72 | ||
73 | /* New() needs interpreter, so call malloc() instead */ | |
74 | my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter)); | |
75 | PERL_SET_INTERP(my_perl); | |
76 | Zero(my_perl, 1, PerlInterpreter); | |
77 | PL_Mem = ipM; | |
78 | PL_Env = ipE; | |
79 | PL_StdIO = ipStd; | |
80 | PL_LIO = ipLIO; | |
81 | PL_Dir = ipD; | |
82 | PL_Sock = ipS; | |
83 | PL_Proc = ipP; | |
84 | return my_perl; | |
85 | } | |
86 | #else | |
93a17b20 | 87 | PerlInterpreter * |
cea2e8a9 | 88 | perl_alloc(void) |
79072805 | 89 | { |
cea2e8a9 | 90 | PerlInterpreter *my_perl; |
79072805 | 91 | |
54aff467 | 92 | /* New() needs interpreter, so call malloc() instead */ |
e8ee3774 | 93 | my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter)); |
c5be433b | 94 | PERL_SET_INTERP(my_perl); |
cea2e8a9 | 95 | return my_perl; |
79072805 | 96 | } |
32e30700 | 97 | #endif /* PERL_IMPLICIT_SYS */ |
01f988be | 98 | #endif /* PERL_OBJECT */ |
79072805 LW |
99 | |
100 | void | |
0cb96387 | 101 | perl_construct(pTHXx) |
79072805 | 102 | { |
a863c7d1 MB |
103 | #ifdef USE_THREADS |
104 | int i; | |
105 | #ifndef FAKE_THREADS | |
e1f15930 | 106 | struct perl_thread *thr = NULL; |
a863c7d1 MB |
107 | #endif /* FAKE_THREADS */ |
108 | #endif /* USE_THREADS */ | |
11343788 | 109 | |
8990e307 | 110 | #ifdef MULTIPLICITY |
54aff467 GS |
111 | init_interp(); |
112 | PL_perl_destruct_level = 1; | |
113 | #else | |
114 | if (PL_perl_destruct_level > 0) | |
115 | init_interp(); | |
116 | #endif | |
117 | ||
33f46ff6 | 118 | /* Init the real globals (and main thread)? */ |
3280af22 | 119 | if (!PL_linestr) { |
11343788 | 120 | #ifdef USE_THREADS |
8023c3ce | 121 | |
33f46ff6 | 122 | INIT_THREADS; |
d55594ae GS |
123 | #ifdef ALLOC_THREAD_KEY |
124 | ALLOC_THREAD_KEY; | |
125 | #else | |
533c011a | 126 | if (pthread_key_create(&PL_thr_key, 0)) |
cea2e8a9 | 127 | Perl_croak(aTHX_ "panic: pthread_key_create"); |
d55594ae | 128 | #endif |
533c011a | 129 | MUTEX_INIT(&PL_sv_mutex); |
a863c7d1 MB |
130 | /* |
131 | * Safe to use basic SV functions from now on (though | |
132 | * not things like mortals or tainting yet). | |
133 | */ | |
533c011a NIS |
134 | MUTEX_INIT(&PL_eval_mutex); |
135 | COND_INIT(&PL_eval_cond); | |
136 | MUTEX_INIT(&PL_threads_mutex); | |
137 | COND_INIT(&PL_nthreads_cond); | |
dce16143 | 138 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
533c011a | 139 | MUTEX_INIT(&PL_svref_mutex); |
dce16143 | 140 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ |
a863c7d1 | 141 | |
5ff3f7a4 GS |
142 | MUTEX_INIT(&PL_cred_mutex); |
143 | ||
199100c8 | 144 | thr = init_main_thread(); |
11343788 MB |
145 | #endif /* USE_THREADS */ |
146 | ||
0b94c7bb | 147 | PL_protect = MEMBER_TO_FPTR(Perl_default_protect); /* for exceptions */ |
312caa8e | 148 | |
2aea9f8a GS |
149 | PL_curcop = &PL_compiling; /* needed by ckWARN, right away */ |
150 | ||
3280af22 NIS |
151 | PL_linestr = NEWSV(65,79); |
152 | sv_upgrade(PL_linestr,SVt_PVIV); | |
79072805 | 153 | |
3280af22 | 154 | if (!SvREADONLY(&PL_sv_undef)) { |
d689ffdd JP |
155 | /* set read-only and try to insure than we wont see REFCNT==0 |
156 | very often */ | |
157 | ||
3280af22 NIS |
158 | SvREADONLY_on(&PL_sv_undef); |
159 | SvREFCNT(&PL_sv_undef) = (~(U32)0)/2; | |
79072805 | 160 | |
3280af22 NIS |
161 | sv_setpv(&PL_sv_no,PL_No); |
162 | SvNV(&PL_sv_no); | |
163 | SvREADONLY_on(&PL_sv_no); | |
164 | SvREFCNT(&PL_sv_no) = (~(U32)0)/2; | |
79072805 | 165 | |
3280af22 NIS |
166 | sv_setpv(&PL_sv_yes,PL_Yes); |
167 | SvNV(&PL_sv_yes); | |
168 | SvREADONLY_on(&PL_sv_yes); | |
169 | SvREFCNT(&PL_sv_yes) = (~(U32)0)/2; | |
6e72f9df | 170 | } |
79072805 | 171 | |
76e3520e GS |
172 | #ifdef PERL_OBJECT |
173 | /* TODO: */ | |
6b88bc9c | 174 | /* PL_sighandlerp = sighandler; */ |
76e3520e | 175 | #else |
cea2e8a9 | 176 | PL_sighandlerp = Perl_sighandler; |
76e3520e | 177 | #endif |
3280af22 | 178 | PL_pidstatus = newHV(); |
44a8e56a | 179 | |
79072805 LW |
180 | #ifdef MSDOS |
181 | /* | |
182 | * There is no way we can refer to them from Perl so close them to save | |
183 | * space. The other alternative would be to provide STDAUX and STDPRN | |
184 | * filehandles. | |
185 | */ | |
186 | (void)fclose(stdaux); | |
187 | (void)fclose(stdprn); | |
188 | #endif | |
189 | } | |
190 | ||
79cb57f6 | 191 | PL_nrs = newSVpvn("\n", 1); |
3280af22 | 192 | PL_rs = SvREFCNT_inc(PL_nrs); |
dc92893f | 193 | |
cea2e8a9 | 194 | init_stacks(); |
79072805 | 195 | |
748a9306 | 196 | init_ids(); |
3280af22 | 197 | PL_lex_state = LEX_NOTPARSING; |
a5f75d66 | 198 | |
312caa8e | 199 | JMPENV_BOOTSTRAP; |
f86702cc | 200 | STATUS_ALL_SUCCESS; |
201 | ||
0672f40e | 202 | init_i18nl10n(1); |
36477c24 | 203 | SET_NUMERIC_STANDARD(); |
0b5b802d | 204 | |
cceca5ed GS |
205 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
206 | sprintf(PL_patchlevel, "%7.5f", (double) PERL_REVISION | |
207 | + ((double) PERL_VERSION / (double) 1000) | |
208 | + ((double) PERL_SUBVERSION / (double) 100000)); | |
a5f75d66 | 209 | #else |
cceca5ed GS |
210 | sprintf(PL_patchlevel, "%5.3f", (double) PERL_REVISION + |
211 | ((double) PERL_VERSION / (double) 1000)); | |
a5f75d66 | 212 | #endif |
79072805 | 213 | |
ab821d7f | 214 | #if defined(LOCAL_PATCH_COUNT) |
3280af22 | 215 | PL_localpatches = local_patches; /* For possible -v */ |
ab821d7f | 216 | #endif |
217 | ||
4b556e6c | 218 | PerlIO_init(); /* Hook to IO system */ |
760ac839 | 219 | |
3280af22 NIS |
220 | PL_fdpid = newAV(); /* for remembering popen pids by fd */ |
221 | PL_modglobal = newHV(); /* pointers to per-interpreter module globals */ | |
8990e307 | 222 | |
8990e307 | 223 | ENTER; |
79072805 LW |
224 | } |
225 | ||
226 | void | |
0cb96387 | 227 | perl_destruct(pTHXx) |
79072805 | 228 | { |
11343788 | 229 | dTHR; |
748a9306 | 230 | int destruct_level; /* 0=none, 1=full, 2=full with checks */ |
8990e307 | 231 | I32 last_sv_count; |
a0d0e21e | 232 | HV *hv; |
1f2bfc8a | 233 | #ifdef USE_THREADS |
33f46ff6 | 234 | Thread t; |
cea2e8a9 | 235 | dTHX; |
1f2bfc8a | 236 | #endif /* USE_THREADS */ |
8990e307 | 237 | |
11343788 | 238 | #ifdef USE_THREADS |
0f15f207 | 239 | #ifndef FAKE_THREADS |
8023c3ce MB |
240 | /* Pass 1 on any remaining threads: detach joinables, join zombies */ |
241 | retry_cleanup: | |
533c011a | 242 | MUTEX_LOCK(&PL_threads_mutex); |
bf49b057 | 243 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 | 244 | "perl_destruct: waiting for %d threads...\n", |
533c011a | 245 | PL_nthreads - 1)); |
33f46ff6 | 246 | for (t = thr->next; t != thr; t = t->next) { |
605e5515 MB |
247 | MUTEX_LOCK(&t->mutex); |
248 | switch (ThrSTATE(t)) { | |
249 | AV *av; | |
c7848ba1 | 250 | case THRf_ZOMBIE: |
bf49b057 | 251 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 | 252 | "perl_destruct: joining zombie %p\n", t)); |
605e5515 MB |
253 | ThrSETSTATE(t, THRf_DEAD); |
254 | MUTEX_UNLOCK(&t->mutex); | |
533c011a | 255 | PL_nthreads--; |
8023c3ce MB |
256 | /* |
257 | * The SvREFCNT_dec below may take a long time (e.g. av | |
258 | * may contain an object scalar whose destructor gets | |
259 | * called) so we have to unlock threads_mutex and start | |
260 | * all over again. | |
261 | */ | |
533c011a | 262 | MUTEX_UNLOCK(&PL_threads_mutex); |
ea0efc06 | 263 | JOIN(t, &av); |
605e5515 | 264 | SvREFCNT_dec((SV*)av); |
bf49b057 | 265 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 | 266 | "perl_destruct: joined zombie %p OK\n", t)); |
8023c3ce | 267 | goto retry_cleanup; |
c7848ba1 | 268 | case THRf_R_JOINABLE: |
bf49b057 | 269 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 MB |
270 | "perl_destruct: detaching thread %p\n", t)); |
271 | ThrSETSTATE(t, THRf_R_DETACHED); | |
272 | /* | |
273 | * We unlock threads_mutex and t->mutex in the opposite order | |
274 | * from which we locked them just so that DETACH won't | |
275 | * deadlock if it panics. It's only a breach of good style | |
276 | * not a bug since they are unlocks not locks. | |
277 | */ | |
533c011a | 278 | MUTEX_UNLOCK(&PL_threads_mutex); |
c7848ba1 MB |
279 | DETACH(t); |
280 | MUTEX_UNLOCK(&t->mutex); | |
8023c3ce | 281 | goto retry_cleanup; |
c7848ba1 | 282 | default: |
bf49b057 | 283 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 MB |
284 | "perl_destruct: ignoring %p (state %u)\n", |
285 | t, ThrSTATE(t))); | |
286 | MUTEX_UNLOCK(&t->mutex); | |
c7848ba1 | 287 | /* fall through and out */ |
33f46ff6 MB |
288 | } |
289 | } | |
8023c3ce MB |
290 | /* We leave the above "Pass 1" loop with threads_mutex still locked */ |
291 | ||
292 | /* Pass 2 on remaining threads: wait for the thread count to drop to one */ | |
533c011a | 293 | while (PL_nthreads > 1) |
11343788 | 294 | { |
bf49b057 | 295 | DEBUG_S(PerlIO_printf(Perl_debug_log, |
c7848ba1 | 296 | "perl_destruct: final wait for %d threads\n", |
533c011a NIS |
297 | PL_nthreads - 1)); |
298 | COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex); | |
11343788 MB |
299 | } |
300 | /* At this point, we're the last thread */ | |
533c011a | 301 | MUTEX_UNLOCK(&PL_threads_mutex); |
bf49b057 | 302 | DEBUG_S(PerlIO_printf(Perl_debug_log, "perl_destruct: armageddon has arrived\n")); |
533c011a NIS |
303 | MUTEX_DESTROY(&PL_threads_mutex); |
304 | COND_DESTROY(&PL_nthreads_cond); | |
0f15f207 | 305 | #endif /* !defined(FAKE_THREADS) */ |
11343788 MB |
306 | #endif /* USE_THREADS */ |
307 | ||
3280af22 | 308 | destruct_level = PL_perl_destruct_level; |
4633a7c4 LW |
309 | #ifdef DEBUGGING |
310 | { | |
311 | char *s; | |
76e3520e | 312 | if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) { |
5f05dabc | 313 | int i = atoi(s); |
314 | if (destruct_level < i) | |
315 | destruct_level = i; | |
316 | } | |
4633a7c4 LW |
317 | } |
318 | #endif | |
319 | ||
8990e307 | 320 | LEAVE; |
a0d0e21e LW |
321 | FREETMPS; |
322 | ||
ff0cee69 | 323 | /* We must account for everything. */ |
324 | ||
325 | /* Destroy the main CV and syntax tree */ | |
3280af22 NIS |
326 | if (PL_main_root) { |
327 | PL_curpad = AvARRAY(PL_comppad); | |
328 | op_free(PL_main_root); | |
329 | PL_main_root = Nullop; | |
a0d0e21e | 330 | } |
3280af22 NIS |
331 | PL_curcop = &PL_compiling; |
332 | PL_main_start = Nullop; | |
333 | SvREFCNT_dec(PL_main_cv); | |
334 | PL_main_cv = Nullcv; | |
24d3c518 | 335 | PL_dirty = TRUE; |
ff0cee69 | 336 | |
3280af22 | 337 | if (PL_sv_objcount) { |
a0d0e21e LW |
338 | /* |
339 | * Try to destruct global references. We do this first so that the | |
340 | * destructors and destructees still exist. Some sv's might remain. | |
341 | * Non-referenced objects are on their own. | |
342 | */ | |
a0d0e21e | 343 | sv_clean_objs(); |
8990e307 LW |
344 | } |
345 | ||
5cd24f17 | 346 | /* unhook hooks which will soon be, or use, destroyed data */ |
3280af22 NIS |
347 | SvREFCNT_dec(PL_warnhook); |
348 | PL_warnhook = Nullsv; | |
349 | SvREFCNT_dec(PL_diehook); | |
350 | PL_diehook = Nullsv; | |
5cd24f17 | 351 | |
4b556e6c | 352 | /* call exit list functions */ |
3280af22 | 353 | while (PL_exitlistlen-- > 0) |
0cb96387 | 354 | PL_exitlist[PL_exitlistlen].fn(aTHXo_ PL_exitlist[PL_exitlistlen].ptr); |
4b556e6c | 355 | |
3280af22 | 356 | Safefree(PL_exitlist); |
4b556e6c | 357 | |
a0d0e21e | 358 | if (destruct_level == 0){ |
8990e307 | 359 | |
a0d0e21e LW |
360 | DEBUG_P(debprofdump()); |
361 | ||
362 | /* The exit() function will do everything that needs doing. */ | |
363 | return; | |
364 | } | |
5dd60ef7 | 365 | |
5f05dabc | 366 | /* loosen bonds of global variables */ |
367 | ||
3280af22 NIS |
368 | if(PL_rsfp) { |
369 | (void)PerlIO_close(PL_rsfp); | |
370 | PL_rsfp = Nullfp; | |
8ebc5c01 | 371 | } |
372 | ||
373 | /* Filters for program text */ | |
3280af22 NIS |
374 | SvREFCNT_dec(PL_rsfp_filters); |
375 | PL_rsfp_filters = Nullav; | |
8ebc5c01 | 376 | |
377 | /* switches */ | |
3280af22 NIS |
378 | PL_preprocess = FALSE; |
379 | PL_minus_n = FALSE; | |
380 | PL_minus_p = FALSE; | |
381 | PL_minus_l = FALSE; | |
382 | PL_minus_a = FALSE; | |
383 | PL_minus_F = FALSE; | |
384 | PL_doswitches = FALSE; | |
599cee73 | 385 | PL_dowarn = G_WARN_OFF; |
3280af22 NIS |
386 | PL_doextract = FALSE; |
387 | PL_sawampersand = FALSE; /* must save all match strings */ | |
3280af22 NIS |
388 | PL_unsafe = FALSE; |
389 | ||
390 | Safefree(PL_inplace); | |
391 | PL_inplace = Nullch; | |
392 | ||
393 | if (PL_e_script) { | |
394 | SvREFCNT_dec(PL_e_script); | |
395 | PL_e_script = Nullsv; | |
8ebc5c01 | 396 | } |
397 | ||
398 | /* magical thingies */ | |
399 | ||
3280af22 NIS |
400 | Safefree(PL_ofs); /* $, */ |
401 | PL_ofs = Nullch; | |
5f05dabc | 402 | |
3280af22 NIS |
403 | Safefree(PL_ors); /* $\ */ |
404 | PL_ors = Nullch; | |
8ebc5c01 | 405 | |
3280af22 NIS |
406 | SvREFCNT_dec(PL_rs); /* $/ */ |
407 | PL_rs = Nullsv; | |
dc92893f | 408 | |
3280af22 NIS |
409 | SvREFCNT_dec(PL_nrs); /* $/ helper */ |
410 | PL_nrs = Nullsv; | |
5f05dabc | 411 | |
3280af22 | 412 | PL_multiline = 0; /* $* */ |
5f05dabc | 413 | |
3280af22 NIS |
414 | SvREFCNT_dec(PL_statname); |
415 | PL_statname = Nullsv; | |
416 | PL_statgv = Nullgv; | |
5f05dabc | 417 | |
8ebc5c01 | 418 | /* defgv, aka *_ should be taken care of elsewhere */ |
419 | ||
8ebc5c01 | 420 | /* clean up after study() */ |
3280af22 NIS |
421 | SvREFCNT_dec(PL_lastscream); |
422 | PL_lastscream = Nullsv; | |
423 | Safefree(PL_screamfirst); | |
424 | PL_screamfirst = 0; | |
425 | Safefree(PL_screamnext); | |
426 | PL_screamnext = 0; | |
8ebc5c01 | 427 | |
7d5ea4e7 GS |
428 | /* float buffer */ |
429 | Safefree(PL_efloatbuf); | |
430 | PL_efloatbuf = Nullch; | |
431 | PL_efloatsize = 0; | |
432 | ||
8ebc5c01 | 433 | /* startup and shutdown function lists */ |
3280af22 NIS |
434 | SvREFCNT_dec(PL_beginav); |
435 | SvREFCNT_dec(PL_endav); | |
4f25aa18 | 436 | SvREFCNT_dec(PL_stopav); |
3280af22 NIS |
437 | SvREFCNT_dec(PL_initav); |
438 | PL_beginav = Nullav; | |
439 | PL_endav = Nullav; | |
4f25aa18 | 440 | PL_stopav = Nullav; |
3280af22 | 441 | PL_initav = Nullav; |
5618dfe8 | 442 | |
8ebc5c01 | 443 | /* shortcuts just get cleared */ |
3280af22 | 444 | PL_envgv = Nullgv; |
3280af22 NIS |
445 | PL_incgv = Nullgv; |
446 | PL_hintgv = Nullgv; | |
447 | PL_errgv = Nullgv; | |
448 | PL_argvgv = Nullgv; | |
449 | PL_argvoutgv = Nullgv; | |
450 | PL_stdingv = Nullgv; | |
bf49b057 | 451 | PL_stderrgv = Nullgv; |
3280af22 NIS |
452 | PL_last_in_gv = Nullgv; |
453 | PL_replgv = Nullgv; | |
8ebc5c01 | 454 | |
455 | /* reset so print() ends up where we expect */ | |
456 | setdefout(Nullgv); | |
457 | ||
a0d0e21e | 458 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 459 | |
3280af22 NIS |
460 | hv = PL_defstash; |
461 | PL_defstash = 0; | |
a0d0e21e LW |
462 | SvREFCNT_dec(hv); |
463 | ||
5a844595 GS |
464 | /* clear queued errors */ |
465 | SvREFCNT_dec(PL_errors); | |
466 | PL_errors = Nullsv; | |
467 | ||
a0d0e21e | 468 | FREETMPS; |
0453d815 | 469 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 470 | if (PL_scopestack_ix != 0) |
0453d815 PM |
471 | Perl_warner(aTHX_ WARN_INTERNAL, |
472 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", | |
3280af22 NIS |
473 | (long)PL_scopestack_ix); |
474 | if (PL_savestack_ix != 0) | |
0453d815 PM |
475 | Perl_warner(aTHX_ WARN_INTERNAL, |
476 | "Unbalanced saves: %ld more saves than restores\n", | |
3280af22 NIS |
477 | (long)PL_savestack_ix); |
478 | if (PL_tmps_floor != -1) | |
0453d815 | 479 | Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 480 | (long)PL_tmps_floor + 1); |
a0d0e21e | 481 | if (cxstack_ix != -1) |
0453d815 | 482 | Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 483 | (long)cxstack_ix + 1); |
a0d0e21e | 484 | } |
8990e307 LW |
485 | |
486 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 487 | last_sv_count = 0; |
3280af22 NIS |
488 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
489 | while (PL_sv_count != 0 && PL_sv_count != last_sv_count) { | |
490 | last_sv_count = PL_sv_count; | |
8990e307 LW |
491 | sv_clean_all(); |
492 | } | |
3280af22 NIS |
493 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
494 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
6e72f9df | 495 | |
496 | /* Destruct the global string table. */ | |
497 | { | |
498 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
499 | * so that sv_free() won't fail on them. | |
500 | */ | |
501 | I32 riter; | |
502 | I32 max; | |
503 | HE *hent; | |
504 | HE **array; | |
505 | ||
506 | riter = 0; | |
3280af22 NIS |
507 | max = HvMAX(PL_strtab); |
508 | array = HvARRAY(PL_strtab); | |
6e72f9df | 509 | hent = array[0]; |
510 | for (;;) { | |
0453d815 PM |
511 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
512 | Perl_warner(aTHX_ WARN_INTERNAL, | |
513 | "Unbalanced string table refcount: (%d) for \"%s\"", | |
6e72f9df | 514 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
515 | HeVAL(hent) = Nullsv; | |
516 | hent = HeNEXT(hent); | |
517 | } | |
518 | if (!hent) { | |
519 | if (++riter > max) | |
520 | break; | |
521 | hent = array[riter]; | |
522 | } | |
523 | } | |
524 | } | |
3280af22 | 525 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 526 | |
0453d815 PM |
527 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
528 | Perl_warner(aTHX_ WARN_INTERNAL,"Scalars leaked: %ld\n", (long)PL_sv_count); | |
6e72f9df | 529 | |
4633a7c4 | 530 | sv_free_arenas(); |
44a8e56a | 531 | |
532 | /* No SVs have survived, need to clean out */ | |
3280af22 NIS |
533 | PL_linestr = NULL; |
534 | PL_pidstatus = Nullhv; | |
535 | Safefree(PL_origfilename); | |
536 | Safefree(PL_archpat_auto); | |
537 | Safefree(PL_reg_start_tmp); | |
5c5e4c24 IZ |
538 | if (PL_reg_curpm) |
539 | Safefree(PL_reg_curpm); | |
82ba1be6 | 540 | Safefree(PL_reg_poscache); |
3280af22 NIS |
541 | Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh)); |
542 | Safefree(PL_op_mask); | |
6e72f9df | 543 | nuke_stacks(); |
3280af22 | 544 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
a0d0e21e LW |
545 | |
546 | DEBUG_P(debprofdump()); | |
11343788 | 547 | #ifdef USE_THREADS |
5f08fbcd | 548 | MUTEX_DESTROY(&PL_strtab_mutex); |
533c011a NIS |
549 | MUTEX_DESTROY(&PL_sv_mutex); |
550 | MUTEX_DESTROY(&PL_eval_mutex); | |
5ff3f7a4 | 551 | MUTEX_DESTROY(&PL_cred_mutex); |
533c011a | 552 | COND_DESTROY(&PL_eval_cond); |
11d617a5 GS |
553 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
554 | MUTEX_DESTROY(&PL_svref_mutex); | |
555 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ | |
fc36a67e | 556 | |
8023c3ce | 557 | /* As the penultimate thing, free the non-arena SV for thrsv */ |
533c011a NIS |
558 | Safefree(SvPVX(PL_thrsv)); |
559 | Safefree(SvANY(PL_thrsv)); | |
560 | Safefree(PL_thrsv); | |
561 | PL_thrsv = Nullsv; | |
8023c3ce MB |
562 | #endif /* USE_THREADS */ |
563 | ||
fc36a67e | 564 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
565 | ||
3280af22 | 566 | if (PL_mess_sv) { |
9c63abab GS |
567 | /* it could have accumulated taint magic */ |
568 | if (SvTYPE(PL_mess_sv) >= SVt_PVMG) { | |
569 | MAGIC* mg; | |
570 | MAGIC* moremagic; | |
571 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
572 | moremagic = mg->mg_moremagic; | |
573 | if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0) | |
574 | Safefree(mg->mg_ptr); | |
575 | Safefree(mg); | |
576 | } | |
577 | } | |
fc36a67e | 578 | /* we know that type >= SVt_PV */ |
3280af22 NIS |
579 | SvOOK_off(PL_mess_sv); |
580 | Safefree(SvPVX(PL_mess_sv)); | |
581 | Safefree(SvANY(PL_mess_sv)); | |
582 | Safefree(PL_mess_sv); | |
583 | PL_mess_sv = Nullsv; | |
fc36a67e | 584 | } |
79072805 LW |
585 | } |
586 | ||
587 | void | |
0cb96387 | 588 | perl_free(pTHXx) |
79072805 | 589 | { |
c5be433b | 590 | #if defined(PERL_OBJECT) |
7f0d82f7 | 591 | PerlMem_free(this); |
76e3520e | 592 | #else |
7f0d82f7 | 593 | PerlMem_free(aTHXx); |
76e3520e | 594 | #endif |
79072805 LW |
595 | } |
596 | ||
4b556e6c | 597 | void |
864dbfa3 | 598 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 599 | { |
3280af22 NIS |
600 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
601 | PL_exitlist[PL_exitlistlen].fn = fn; | |
602 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
603 | ++PL_exitlistlen; | |
4b556e6c JD |
604 | } |
605 | ||
79072805 | 606 | int |
0cb96387 | 607 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 608 | { |
11343788 | 609 | dTHR; |
6224f72b | 610 | I32 oldscope; |
6224f72b | 611 | int ret; |
db36c5a1 | 612 | dJMPENV; |
cea2e8a9 GS |
613 | #ifdef USE_THREADS |
614 | dTHX; | |
615 | #endif | |
8d063cd8 | 616 | |
a687059c LW |
617 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
618 | #ifdef IAMSUID | |
619 | #undef IAMSUID | |
cea2e8a9 | 620 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
621 | setuid perl scripts securely.\n"); |
622 | #endif | |
623 | #endif | |
624 | ||
8f1f23e8 | 625 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
6e72f9df | 626 | _dyld_lookup_and_bind |
627 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
628 | #endif /* environ */ | |
629 | ||
3280af22 NIS |
630 | PL_origargv = argv; |
631 | PL_origargc = argc; | |
a0d0e21e | 632 | #ifndef VMS /* VMS doesn't have environ array */ |
3280af22 | 633 | PL_origenviron = environ; |
a0d0e21e LW |
634 | #endif |
635 | ||
3280af22 | 636 | if (PL_do_undump) { |
a0d0e21e LW |
637 | |
638 | /* Come here if running an undumped a.out. */ | |
639 | ||
3280af22 NIS |
640 | PL_origfilename = savepv(argv[0]); |
641 | PL_do_undump = FALSE; | |
a0d0e21e | 642 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 643 | init_ids(); |
a0d0e21e LW |
644 | init_postdump_symbols(argc,argv,env); |
645 | return 0; | |
646 | } | |
647 | ||
3280af22 NIS |
648 | if (PL_main_root) { |
649 | PL_curpad = AvARRAY(PL_comppad); | |
650 | op_free(PL_main_root); | |
651 | PL_main_root = Nullop; | |
ff0cee69 | 652 | } |
3280af22 NIS |
653 | PL_main_start = Nullop; |
654 | SvREFCNT_dec(PL_main_cv); | |
655 | PL_main_cv = Nullcv; | |
79072805 | 656 | |
3280af22 NIS |
657 | time(&PL_basetime); |
658 | oldscope = PL_scopestack_ix; | |
599cee73 | 659 | PL_dowarn = G_WARN_OFF; |
f86702cc | 660 | |
db36c5a1 GS |
661 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_parse_body), |
662 | env, xsinit); | |
6224f72b | 663 | switch (ret) { |
312caa8e | 664 | case 0: |
4f25aa18 GS |
665 | if (PL_stopav) |
666 | call_list(oldscope, PL_stopav); | |
312caa8e | 667 | return 0; |
6224f72b GS |
668 | case 1: |
669 | STATUS_ALL_FAILURE; | |
670 | /* FALL THROUGH */ | |
671 | case 2: | |
672 | /* my_exit() was called */ | |
3280af22 | 673 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
674 | LEAVE; |
675 | FREETMPS; | |
3280af22 | 676 | PL_curstash = PL_defstash; |
4f25aa18 GS |
677 | if (PL_stopav) |
678 | call_list(oldscope, PL_stopav); | |
6224f72b GS |
679 | return STATUS_NATIVE_EXPORT; |
680 | case 3: | |
bf49b057 | 681 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
6224f72b GS |
682 | return 1; |
683 | } | |
a6c40364 | 684 | return 0; |
312caa8e CS |
685 | } |
686 | ||
687 | STATIC void * | |
cea2e8a9 | 688 | S_parse_body(pTHX_ va_list args) |
312caa8e CS |
689 | { |
690 | dTHR; | |
691 | int argc = PL_origargc; | |
692 | char **argv = PL_origargv; | |
693 | char **env = va_arg(args, char**); | |
694 | char *scriptname = NULL; | |
695 | int fdscript = -1; | |
696 | VOL bool dosearch = FALSE; | |
697 | char *validarg = ""; | |
698 | AV* comppadlist; | |
699 | register SV *sv; | |
700 | register char *s; | |
f4c556ac | 701 | char *cddir = Nullch; |
312caa8e | 702 | |
864dbfa3 | 703 | XSINIT_t xsinit = va_arg(args, XSINIT_t); |
79072805 | 704 | |
3280af22 | 705 | sv_setpvn(PL_linestr,"",0); |
79cb57f6 | 706 | sv = newSVpvn("",0); /* first used for -I flags */ |
6224f72b GS |
707 | SAVEFREESV(sv); |
708 | init_main_stash(); | |
54310121 | 709 | |
6224f72b GS |
710 | for (argc--,argv++; argc > 0; argc--,argv++) { |
711 | if (argv[0][0] != '-' || !argv[0][1]) | |
712 | break; | |
713 | #ifdef DOSUID | |
714 | if (*validarg) | |
715 | validarg = " PHOOEY "; | |
716 | else | |
717 | validarg = argv[0]; | |
13281fa4 | 718 | #endif |
6224f72b GS |
719 | s = argv[0]+1; |
720 | reswitch: | |
721 | switch (*s) { | |
1d5472a9 GS |
722 | #ifndef PERL_STRICT_CR |
723 | case '\r': | |
724 | #endif | |
6224f72b GS |
725 | case ' ': |
726 | case '0': | |
727 | case 'F': | |
728 | case 'a': | |
729 | case 'c': | |
730 | case 'd': | |
731 | case 'D': | |
732 | case 'h': | |
733 | case 'i': | |
734 | case 'l': | |
735 | case 'M': | |
736 | case 'm': | |
737 | case 'n': | |
738 | case 'p': | |
739 | case 's': | |
740 | case 'u': | |
741 | case 'U': | |
742 | case 'v': | |
599cee73 PM |
743 | case 'W': |
744 | case 'X': | |
6224f72b GS |
745 | case 'w': |
746 | if (s = moreswitches(s)) | |
747 | goto reswitch; | |
748 | break; | |
33b78306 | 749 | |
6224f72b | 750 | case 'T': |
3280af22 | 751 | PL_tainting = TRUE; |
6224f72b GS |
752 | s++; |
753 | goto reswitch; | |
f86702cc | 754 | |
6224f72b | 755 | case 'e': |
3280af22 | 756 | if (PL_euid != PL_uid || PL_egid != PL_gid) |
cea2e8a9 | 757 | Perl_croak(aTHX_ "No -e allowed in setuid scripts"); |
3280af22 | 758 | if (!PL_e_script) { |
79cb57f6 | 759 | PL_e_script = newSVpvn("",0); |
0cb96387 | 760 | filter_add(read_e_script, NULL); |
6224f72b GS |
761 | } |
762 | if (*++s) | |
3280af22 | 763 | sv_catpv(PL_e_script, s); |
6224f72b | 764 | else if (argv[1]) { |
3280af22 | 765 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
766 | argc--,argv++; |
767 | } | |
768 | else | |
cea2e8a9 | 769 | Perl_croak(aTHX_ "No code specified for -e"); |
3280af22 | 770 | sv_catpv(PL_e_script, "\n"); |
6224f72b | 771 | break; |
afe37c7d | 772 | |
6224f72b GS |
773 | case 'I': /* -I handled both here and in moreswitches() */ |
774 | forbid_setid("-I"); | |
775 | if (!*++s && (s=argv[1]) != Nullch) { | |
776 | argc--,argv++; | |
777 | } | |
778 | while (s && isSPACE(*s)) | |
779 | ++s; | |
780 | if (s && *s) { | |
781 | char *e, *p; | |
782 | for (e = s; *e && !isSPACE(*e); e++) ; | |
783 | p = savepvn(s, e-s); | |
784 | incpush(p, TRUE); | |
785 | sv_catpv(sv,"-I"); | |
786 | sv_catpv(sv,p); | |
787 | sv_catpv(sv," "); | |
788 | Safefree(p); | |
789 | } /* XXX else croak? */ | |
790 | break; | |
791 | case 'P': | |
792 | forbid_setid("-P"); | |
3280af22 | 793 | PL_preprocess = TRUE; |
6224f72b GS |
794 | s++; |
795 | goto reswitch; | |
796 | case 'S': | |
797 | forbid_setid("-S"); | |
798 | dosearch = TRUE; | |
799 | s++; | |
800 | goto reswitch; | |
801 | case 'V': | |
3280af22 NIS |
802 | if (!PL_preambleav) |
803 | PL_preambleav = newAV(); | |
804 | av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
6224f72b | 805 | if (*++s != ':') { |
3280af22 | 806 | PL_Sv = newSVpv("print myconfig();",0); |
6224f72b | 807 | #ifdef VMS |
6b88bc9c | 808 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 809 | #else |
3280af22 | 810 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 811 | #endif |
3280af22 | 812 | sv_catpv(PL_Sv,"\" Compile-time options:"); |
6224f72b | 813 | # ifdef DEBUGGING |
3280af22 | 814 | sv_catpv(PL_Sv," DEBUGGING"); |
6224f72b | 815 | # endif |
6224f72b | 816 | # ifdef MULTIPLICITY |
8f872242 | 817 | sv_catpv(PL_Sv," MULTIPLICITY"); |
6224f72b | 818 | # endif |
b363f7ed GS |
819 | # ifdef USE_THREADS |
820 | sv_catpv(PL_Sv," USE_THREADS"); | |
821 | # endif | |
822 | # ifdef PERL_OBJECT | |
823 | sv_catpv(PL_Sv," PERL_OBJECT"); | |
824 | # endif | |
825 | # ifdef PERL_IMPLICIT_CONTEXT | |
826 | sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT"); | |
827 | # endif | |
828 | # ifdef PERL_IMPLICIT_SYS | |
829 | sv_catpv(PL_Sv," PERL_IMPLICIT_SYS"); | |
830 | # endif | |
3280af22 | 831 | sv_catpv(PL_Sv,"\\n\","); |
b363f7ed | 832 | |
6224f72b GS |
833 | #if defined(LOCAL_PATCH_COUNT) |
834 | if (LOCAL_PATCH_COUNT > 0) { | |
835 | int i; | |
3280af22 | 836 | sv_catpv(PL_Sv,"\" Locally applied patches:\\n\","); |
6224f72b | 837 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
3280af22 | 838 | if (PL_localpatches[i]) |
cea2e8a9 | 839 | Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]); |
6224f72b GS |
840 | } |
841 | } | |
842 | #endif | |
cea2e8a9 | 843 | Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME); |
6224f72b GS |
844 | #ifdef __DATE__ |
845 | # ifdef __TIME__ | |
cea2e8a9 | 846 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6224f72b | 847 | # else |
cea2e8a9 | 848 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__); |
6224f72b GS |
849 | # endif |
850 | #endif | |
3280af22 | 851 | sv_catpv(PL_Sv, "; \ |
6224f72b GS |
852 | $\"=\"\\n \"; \ |
853 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ | |
854 | print \" \\%ENV:\\n @env\\n\" if @env; \ | |
855 | print \" \\@INC:\\n @INC\\n\";"); | |
856 | } | |
857 | else { | |
3280af22 NIS |
858 | PL_Sv = newSVpv("config_vars(qw(",0); |
859 | sv_catpv(PL_Sv, ++s); | |
860 | sv_catpv(PL_Sv, "))"); | |
6224f72b GS |
861 | s += strlen(s); |
862 | } | |
3280af22 | 863 | av_push(PL_preambleav, PL_Sv); |
6224f72b GS |
864 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
865 | goto reswitch; | |
866 | case 'x': | |
3280af22 | 867 | PL_doextract = TRUE; |
6224f72b GS |
868 | s++; |
869 | if (*s) | |
f4c556ac | 870 | cddir = s; |
6224f72b GS |
871 | break; |
872 | case 0: | |
873 | break; | |
874 | case '-': | |
875 | if (!*++s || isSPACE(*s)) { | |
876 | argc--,argv++; | |
877 | goto switch_end; | |
878 | } | |
879 | /* catch use of gnu style long options */ | |
880 | if (strEQ(s, "version")) { | |
881 | s = "v"; | |
882 | goto reswitch; | |
883 | } | |
884 | if (strEQ(s, "help")) { | |
885 | s = "h"; | |
886 | goto reswitch; | |
887 | } | |
888 | s--; | |
889 | /* FALL THROUGH */ | |
890 | default: | |
cea2e8a9 | 891 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
892 | } |
893 | } | |
6224f72b | 894 | switch_end: |
54310121 | 895 | |
f675dbe5 CB |
896 | if ( |
897 | #ifndef SECURE_INTERNAL_GETENV | |
898 | !PL_tainting && | |
899 | #endif | |
900 | (s = PerlEnv_getenv("PERL5OPT"))) { | |
74288ac8 GS |
901 | while (isSPACE(*s)) |
902 | s++; | |
903 | if (*s == '-' && *(s+1) == 'T') | |
904 | PL_tainting = TRUE; | |
905 | else { | |
906 | while (s && *s) { | |
907 | while (isSPACE(*s)) | |
908 | s++; | |
909 | if (*s == '-') { | |
910 | s++; | |
911 | if (isSPACE(*s)) | |
912 | continue; | |
913 | } | |
914 | if (!*s) | |
915 | break; | |
916 | if (!strchr("DIMUdmw", *s)) | |
cea2e8a9 | 917 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
74288ac8 | 918 | s = moreswitches(s); |
6224f72b | 919 | } |
6224f72b GS |
920 | } |
921 | } | |
a0d0e21e | 922 | |
6224f72b GS |
923 | if (!scriptname) |
924 | scriptname = argv[0]; | |
3280af22 | 925 | if (PL_e_script) { |
6224f72b GS |
926 | argc++,argv--; |
927 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
928 | } | |
929 | else if (scriptname == Nullch) { | |
930 | #ifdef MSDOS | |
931 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
932 | moreswitches("h"); | |
933 | #endif | |
934 | scriptname = "-"; | |
935 | } | |
936 | ||
937 | init_perllib(); | |
938 | ||
939 | open_script(scriptname,dosearch,sv,&fdscript); | |
940 | ||
941 | validate_suid(validarg, scriptname,fdscript); | |
942 | ||
0b5b802d GS |
943 | #if defined(SIGCHLD) || defined(SIGCLD) |
944 | { | |
945 | #ifndef SIGCHLD | |
946 | # define SIGCHLD SIGCLD | |
947 | #endif | |
948 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
949 | if (sigstate == SIG_IGN) { | |
950 | if (ckWARN(WARN_SIGNAL)) | |
951 | Perl_warner(aTHX_ WARN_SIGNAL, | |
952 | "Can't ignore signal CHLD, forcing to default"); | |
953 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
954 | } | |
955 | } | |
956 | #endif | |
957 | ||
f4c556ac | 958 | if (PL_doextract) { |
6224f72b | 959 | find_beginning(); |
f4c556ac GS |
960 | if (cddir && PerlDir_chdir(cddir) < 0) |
961 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
962 | ||
963 | } | |
6224f72b | 964 | |
3280af22 NIS |
965 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
966 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); | |
967 | CvUNIQUE_on(PL_compcv); | |
968 | ||
969 | PL_comppad = newAV(); | |
970 | av_push(PL_comppad, Nullsv); | |
971 | PL_curpad = AvARRAY(PL_comppad); | |
972 | PL_comppad_name = newAV(); | |
973 | PL_comppad_name_fill = 0; | |
974 | PL_min_intro_pending = 0; | |
975 | PL_padix = 0; | |
6224f72b | 976 | #ifdef USE_THREADS |
79cb57f6 | 977 | av_store(PL_comppad_name, 0, newSVpvn("@_", 2)); |
533c011a NIS |
978 | PL_curpad[0] = (SV*)newAV(); |
979 | SvPADMY_on(PL_curpad[0]); /* XXX Needed? */ | |
980 | CvOWNER(PL_compcv) = 0; | |
981 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
982 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
6224f72b GS |
983 | #endif /* USE_THREADS */ |
984 | ||
985 | comppadlist = newAV(); | |
986 | AvREAL_off(comppadlist); | |
3280af22 NIS |
987 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
988 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
989 | CvPADLIST(PL_compcv) = comppadlist; | |
6224f72b GS |
990 | |
991 | boot_core_UNIVERSAL(); | |
09bef843 | 992 | boot_core_xsutils(); |
6224f72b GS |
993 | |
994 | if (xsinit) | |
0cb96387 | 995 | (*xsinit)(aTHXo); /* in case linked C routines want magical variables */ |
6224f72b | 996 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) |
c5be433b | 997 | init_os_extras(); |
6224f72b GS |
998 | #endif |
999 | ||
29209bc5 JH |
1000 | #ifdef USE_SOCKS |
1001 | SOCKSinit(argv[0]); | |
1002 | #endif | |
1003 | ||
6224f72b GS |
1004 | init_predump_symbols(); |
1005 | /* init_postdump_symbols not currently designed to be called */ | |
1006 | /* more than once (ENV isn't cleared first, for example) */ | |
1007 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 1008 | if (!PL_do_undump) |
6224f72b GS |
1009 | init_postdump_symbols(argc,argv,env); |
1010 | ||
1011 | init_lexer(); | |
1012 | ||
1013 | /* now parse the script */ | |
1014 | ||
1015 | SETERRNO(0,SS$_NORMAL); | |
3280af22 NIS |
1016 | PL_error_count = 0; |
1017 | if (yyparse() || PL_error_count) { | |
1018 | if (PL_minus_c) | |
cea2e8a9 | 1019 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 1020 | else { |
cea2e8a9 | 1021 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 1022 | PL_origfilename); |
6224f72b GS |
1023 | } |
1024 | } | |
3280af22 NIS |
1025 | PL_curcop->cop_line = 0; |
1026 | PL_curstash = PL_defstash; | |
1027 | PL_preprocess = FALSE; | |
1028 | if (PL_e_script) { | |
1029 | SvREFCNT_dec(PL_e_script); | |
1030 | PL_e_script = Nullsv; | |
6224f72b GS |
1031 | } |
1032 | ||
1033 | /* now that script is parsed, we can modify record separator */ | |
3280af22 NIS |
1034 | SvREFCNT_dec(PL_rs); |
1035 | PL_rs = SvREFCNT_inc(PL_nrs); | |
864dbfa3 | 1036 | sv_setsv(get_sv("/", TRUE), PL_rs); |
3280af22 | 1037 | if (PL_do_undump) |
6224f72b GS |
1038 | my_unexec(); |
1039 | ||
0453d815 | 1040 | if (isWARN_ONCE) |
3280af22 | 1041 | gv_check(PL_defstash); |
6224f72b GS |
1042 | |
1043 | LEAVE; | |
1044 | FREETMPS; | |
1045 | ||
1046 | #ifdef MYMALLOC | |
1047 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
1048 | dump_mstats("after compilation:"); | |
1049 | #endif | |
1050 | ||
1051 | ENTER; | |
3280af22 | 1052 | PL_restartop = 0; |
312caa8e | 1053 | return NULL; |
6224f72b GS |
1054 | } |
1055 | ||
1056 | int | |
0cb96387 | 1057 | perl_run(pTHXx) |
6224f72b | 1058 | { |
de616352 | 1059 | dTHR; |
6224f72b | 1060 | I32 oldscope; |
6224f72b | 1061 | int ret; |
db36c5a1 | 1062 | dJMPENV; |
cea2e8a9 GS |
1063 | #ifdef USE_THREADS |
1064 | dTHX; | |
1065 | #endif | |
6224f72b | 1066 | |
3280af22 | 1067 | oldscope = PL_scopestack_ix; |
6224f72b | 1068 | |
312caa8e | 1069 | redo_body: |
db36c5a1 | 1070 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_run_body), oldscope); |
6224f72b GS |
1071 | switch (ret) { |
1072 | case 1: | |
1073 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e CS |
1074 | goto redo_body; |
1075 | case 0: /* normal completion */ | |
1076 | case 2: /* my_exit() */ | |
3280af22 | 1077 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1078 | LEAVE; |
1079 | FREETMPS; | |
3280af22 | 1080 | PL_curstash = PL_defstash; |
865be832 | 1081 | if (PL_endav && !PL_minus_c) |
3280af22 | 1082 | call_list(oldscope, PL_endav); |
6224f72b GS |
1083 | #ifdef MYMALLOC |
1084 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
1085 | dump_mstats("after execution: "); | |
1086 | #endif | |
6224f72b GS |
1087 | return STATUS_NATIVE_EXPORT; |
1088 | case 3: | |
312caa8e CS |
1089 | if (PL_restartop) { |
1090 | POPSTACK_TO(PL_mainstack); | |
1091 | goto redo_body; | |
6224f72b | 1092 | } |
bf49b057 | 1093 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
1094 | FREETMPS; |
1095 | return 1; | |
6224f72b GS |
1096 | } |
1097 | ||
312caa8e CS |
1098 | /* NOTREACHED */ |
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | STATIC void * | |
cea2e8a9 | 1103 | S_run_body(pTHX_ va_list args) |
312caa8e CS |
1104 | { |
1105 | dTHR; | |
1106 | I32 oldscope = va_arg(args, I32); | |
1107 | ||
6224f72b | 1108 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 1109 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 1110 | |
3280af22 | 1111 | if (!PL_restartop) { |
6224f72b GS |
1112 | DEBUG_x(dump_all()); |
1113 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
b900a521 JH |
1114 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
1115 | PTR2UV(thr))); | |
6224f72b | 1116 | |
3280af22 | 1117 | if (PL_minus_c) { |
bf49b057 | 1118 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
6224f72b GS |
1119 | my_exit(0); |
1120 | } | |
3280af22 | 1121 | if (PERLDB_SINGLE && PL_DBsingle) |
312caa8e | 1122 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
1123 | if (PL_initav) |
1124 | call_list(oldscope, PL_initav); | |
6224f72b GS |
1125 | } |
1126 | ||
1127 | /* do it */ | |
1128 | ||
3280af22 | 1129 | if (PL_restartop) { |
533c011a | 1130 | PL_op = PL_restartop; |
3280af22 | 1131 | PL_restartop = 0; |
cea2e8a9 | 1132 | CALLRUNOPS(aTHX); |
6224f72b | 1133 | } |
3280af22 NIS |
1134 | else if (PL_main_start) { |
1135 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 1136 | PL_op = PL_main_start; |
cea2e8a9 | 1137 | CALLRUNOPS(aTHX); |
6224f72b GS |
1138 | } |
1139 | ||
f6b3007c JH |
1140 | my_exit(0); |
1141 | /* NOTREACHED */ | |
312caa8e | 1142 | return NULL; |
6224f72b GS |
1143 | } |
1144 | ||
1145 | SV* | |
864dbfa3 | 1146 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
1147 | { |
1148 | GV *gv; | |
1149 | #ifdef USE_THREADS | |
1150 | if (name[1] == '\0' && !isALPHA(name[0])) { | |
1151 | PADOFFSET tmp = find_threadsv(name); | |
1152 | if (tmp != NOT_IN_PAD) { | |
1153 | dTHR; | |
1154 | return THREADSV(tmp); | |
1155 | } | |
1156 | } | |
1157 | #endif /* USE_THREADS */ | |
1158 | gv = gv_fetchpv(name, create, SVt_PV); | |
1159 | if (gv) | |
1160 | return GvSV(gv); | |
1161 | return Nullsv; | |
1162 | } | |
1163 | ||
1164 | AV* | |
864dbfa3 | 1165 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b GS |
1166 | { |
1167 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
1168 | if (create) | |
1169 | return GvAVn(gv); | |
1170 | if (gv) | |
1171 | return GvAV(gv); | |
1172 | return Nullav; | |
1173 | } | |
1174 | ||
1175 | HV* | |
864dbfa3 | 1176 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 1177 | { |
a0d0e21e LW |
1178 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
1179 | if (create) | |
1180 | return GvHVn(gv); | |
1181 | if (gv) | |
1182 | return GvHV(gv); | |
1183 | return Nullhv; | |
1184 | } | |
1185 | ||
1186 | CV* | |
864dbfa3 | 1187 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e LW |
1188 | { |
1189 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
b099ddc0 | 1190 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 GS |
1191 | /* XXX this is probably not what they think they're getting. |
1192 | * It has the same effect as "sub name;", i.e. just a forward | |
1193 | * declaration! */ | |
8ebc5c01 | 1194 | if (create && !GvCVu(gv)) |
774d564b | 1195 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 1196 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 1197 | Nullop, |
a0d0e21e LW |
1198 | Nullop); |
1199 | if (gv) | |
8ebc5c01 | 1200 | return GvCVu(gv); |
a0d0e21e LW |
1201 | return Nullcv; |
1202 | } | |
1203 | ||
79072805 LW |
1204 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1205 | ||
a0d0e21e | 1206 | I32 |
864dbfa3 | 1207 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
8ac85365 NIS |
1208 | |
1209 | /* See G_* flags in cop.h */ | |
1210 | /* null terminated arg list */ | |
8990e307 | 1211 | { |
a0d0e21e | 1212 | dSP; |
8990e307 | 1213 | |
924508f0 | 1214 | PUSHMARK(SP); |
a0d0e21e | 1215 | if (argv) { |
8990e307 | 1216 | while (*argv) { |
a0d0e21e | 1217 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
1218 | argv++; |
1219 | } | |
a0d0e21e | 1220 | PUTBACK; |
8990e307 | 1221 | } |
864dbfa3 | 1222 | return call_pv(sub_name, flags); |
8990e307 LW |
1223 | } |
1224 | ||
a0d0e21e | 1225 | I32 |
864dbfa3 | 1226 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
1227 | /* name of the subroutine */ |
1228 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1229 | { |
864dbfa3 | 1230 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
1231 | } |
1232 | ||
1233 | I32 | |
864dbfa3 | 1234 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
1235 | /* name of the subroutine */ |
1236 | /* See G_* flags in cop.h */ | |
a0d0e21e LW |
1237 | { |
1238 | dSP; | |
1239 | OP myop; | |
533c011a NIS |
1240 | if (!PL_op) |
1241 | PL_op = &myop; | |
a0d0e21e LW |
1242 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
1243 | PUTBACK; | |
cea2e8a9 | 1244 | pp_method(); |
533c011a NIS |
1245 | if(PL_op == &myop) |
1246 | PL_op = Nullop; | |
864dbfa3 | 1247 | return call_sv(*PL_stack_sp--, flags); |
a0d0e21e LW |
1248 | } |
1249 | ||
1250 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
1251 | I32 | |
864dbfa3 | 1252 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 NIS |
1253 | |
1254 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1255 | { |
924508f0 | 1256 | dSP; |
a0d0e21e | 1257 | LOGOP myop; /* fake syntax tree node */ |
aa689395 | 1258 | I32 oldmark; |
a0d0e21e | 1259 | I32 retval; |
a0d0e21e | 1260 | I32 oldscope; |
54310121 | 1261 | bool oldcatch = CATCH_GET; |
6224f72b | 1262 | int ret; |
533c011a | 1263 | OP* oldop = PL_op; |
db36c5a1 | 1264 | dJMPENV; |
1e422769 | 1265 | |
a0d0e21e LW |
1266 | if (flags & G_DISCARD) { |
1267 | ENTER; | |
1268 | SAVETMPS; | |
1269 | } | |
1270 | ||
aa689395 | 1271 | Zero(&myop, 1, LOGOP); |
54310121 | 1272 | myop.op_next = Nullop; |
f51d4af5 | 1273 | if (!(flags & G_NOARGS)) |
aa689395 | 1274 | myop.op_flags |= OPf_STACKED; |
54310121 | 1275 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1276 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1277 | OPf_WANT_SCALAR); | |
462e5cf6 | 1278 | SAVEOP(); |
533c011a | 1279 | PL_op = (OP*)&myop; |
aa689395 | 1280 | |
3280af22 NIS |
1281 | EXTEND(PL_stack_sp, 1); |
1282 | *++PL_stack_sp = sv; | |
aa689395 | 1283 | oldmark = TOPMARK; |
3280af22 | 1284 | oldscope = PL_scopestack_ix; |
a0d0e21e | 1285 | |
3280af22 | 1286 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 1287 | /* Handle first BEGIN of -d. */ |
3280af22 | 1288 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 1289 | /* Try harder, since this may have been a sighandler, thus |
1290 | * curstash may be meaningless. */ | |
3280af22 | 1291 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 1292 | && !(flags & G_NODEBUG)) |
533c011a | 1293 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 1294 | |
312caa8e | 1295 | if (!(flags & G_EVAL)) { |
0cdb2077 | 1296 | CATCH_SET(TRUE); |
864dbfa3 | 1297 | call_xbody((OP*)&myop, FALSE); |
312caa8e | 1298 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 1299 | CATCH_SET(oldcatch); |
312caa8e CS |
1300 | } |
1301 | else { | |
533c011a | 1302 | cLOGOP->op_other = PL_op; |
3280af22 | 1303 | PL_markstack_ptr--; |
4633a7c4 LW |
1304 | /* we're trying to emulate pp_entertry() here */ |
1305 | { | |
c09156bb | 1306 | register PERL_CONTEXT *cx; |
54310121 | 1307 | I32 gimme = GIMME_V; |
4633a7c4 LW |
1308 | |
1309 | ENTER; | |
1310 | SAVETMPS; | |
1311 | ||
533c011a | 1312 | push_return(PL_op->op_next); |
3280af22 | 1313 | PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp); |
4633a7c4 | 1314 | PUSHEVAL(cx, 0, 0); |
533c011a | 1315 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
4633a7c4 | 1316 | |
faef0170 | 1317 | PL_in_eval = EVAL_INEVAL; |
4633a7c4 | 1318 | if (flags & G_KEEPERR) |
faef0170 | 1319 | PL_in_eval |= EVAL_KEEPERR; |
4633a7c4 | 1320 | else |
38a03e6e | 1321 | sv_setpv(ERRSV,""); |
4633a7c4 | 1322 | } |
3280af22 | 1323 | PL_markstack_ptr++; |
a0d0e21e | 1324 | |
312caa8e | 1325 | redo_body: |
db36c5a1 GS |
1326 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_call_body), |
1327 | (OP*)&myop, FALSE); | |
6224f72b GS |
1328 | switch (ret) { |
1329 | case 0: | |
312caa8e CS |
1330 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1331 | if (!(flags & G_KEEPERR)) | |
1332 | sv_setpv(ERRSV,""); | |
a0d0e21e | 1333 | break; |
6224f72b | 1334 | case 1: |
f86702cc | 1335 | STATUS_ALL_FAILURE; |
a0d0e21e | 1336 | /* FALL THROUGH */ |
6224f72b | 1337 | case 2: |
a0d0e21e | 1338 | /* my_exit() was called */ |
3280af22 | 1339 | PL_curstash = PL_defstash; |
a0d0e21e | 1340 | FREETMPS; |
3280af22 | 1341 | if (PL_statusvalue) |
cea2e8a9 | 1342 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 1343 | my_exit_jump(); |
a0d0e21e | 1344 | /* NOTREACHED */ |
6224f72b | 1345 | case 3: |
3280af22 | 1346 | if (PL_restartop) { |
533c011a | 1347 | PL_op = PL_restartop; |
3280af22 | 1348 | PL_restartop = 0; |
312caa8e | 1349 | goto redo_body; |
a0d0e21e | 1350 | } |
3280af22 | 1351 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
1352 | if (flags & G_ARRAY) |
1353 | retval = 0; | |
1354 | else { | |
1355 | retval = 1; | |
3280af22 | 1356 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 1357 | } |
312caa8e | 1358 | break; |
a0d0e21e | 1359 | } |
a0d0e21e | 1360 | |
3280af22 | 1361 | if (PL_scopestack_ix > oldscope) { |
a0a2876f LW |
1362 | SV **newsp; |
1363 | PMOP *newpm; | |
1364 | I32 gimme; | |
c09156bb | 1365 | register PERL_CONTEXT *cx; |
a0a2876f LW |
1366 | I32 optype; |
1367 | ||
1368 | POPBLOCK(cx,newpm); | |
1369 | POPEVAL(cx); | |
1370 | pop_return(); | |
3280af22 | 1371 | PL_curpm = newpm; |
a0a2876f | 1372 | LEAVE; |
a0d0e21e | 1373 | } |
a0d0e21e | 1374 | } |
1e422769 | 1375 | |
a0d0e21e | 1376 | if (flags & G_DISCARD) { |
3280af22 | 1377 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
1378 | retval = 0; |
1379 | FREETMPS; | |
1380 | LEAVE; | |
1381 | } | |
533c011a | 1382 | PL_op = oldop; |
a0d0e21e LW |
1383 | return retval; |
1384 | } | |
1385 | ||
312caa8e | 1386 | STATIC void * |
cea2e8a9 | 1387 | S_call_body(pTHX_ va_list args) |
312caa8e CS |
1388 | { |
1389 | OP *myop = va_arg(args, OP*); | |
1390 | int is_eval = va_arg(args, int); | |
1391 | ||
864dbfa3 | 1392 | call_xbody(myop, is_eval); |
312caa8e CS |
1393 | return NULL; |
1394 | } | |
1395 | ||
1396 | STATIC void | |
cea2e8a9 | 1397 | S_call_xbody(pTHX_ OP *myop, int is_eval) |
312caa8e CS |
1398 | { |
1399 | dTHR; | |
1400 | ||
1401 | if (PL_op == myop) { | |
1402 | if (is_eval) | |
cea2e8a9 | 1403 | PL_op = Perl_pp_entereval(aTHX); |
312caa8e | 1404 | else |
cea2e8a9 | 1405 | PL_op = Perl_pp_entersub(aTHX); |
312caa8e CS |
1406 | } |
1407 | if (PL_op) | |
cea2e8a9 | 1408 | CALLRUNOPS(aTHX); |
312caa8e CS |
1409 | } |
1410 | ||
6e72f9df | 1411 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 1412 | |
a0d0e21e | 1413 | I32 |
864dbfa3 | 1414 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 NIS |
1415 | |
1416 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1417 | { |
924508f0 | 1418 | dSP; |
a0d0e21e | 1419 | UNOP myop; /* fake syntax tree node */ |
3280af22 | 1420 | I32 oldmark = SP - PL_stack_base; |
4633a7c4 | 1421 | I32 retval; |
4633a7c4 | 1422 | I32 oldscope; |
6224f72b | 1423 | int ret; |
533c011a | 1424 | OP* oldop = PL_op; |
db36c5a1 | 1425 | dJMPENV; |
84902520 | 1426 | |
4633a7c4 LW |
1427 | if (flags & G_DISCARD) { |
1428 | ENTER; | |
1429 | SAVETMPS; | |
1430 | } | |
1431 | ||
462e5cf6 | 1432 | SAVEOP(); |
533c011a NIS |
1433 | PL_op = (OP*)&myop; |
1434 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
1435 | EXTEND(PL_stack_sp, 1); |
1436 | *++PL_stack_sp = sv; | |
1437 | oldscope = PL_scopestack_ix; | |
79072805 | 1438 | |
4633a7c4 LW |
1439 | if (!(flags & G_NOARGS)) |
1440 | myop.op_flags = OPf_STACKED; | |
79072805 | 1441 | myop.op_next = Nullop; |
6e72f9df | 1442 | myop.op_type = OP_ENTEREVAL; |
54310121 | 1443 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1444 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1445 | OPf_WANT_SCALAR); | |
6e72f9df | 1446 | if (flags & G_KEEPERR) |
1447 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 1448 | |
312caa8e | 1449 | redo_body: |
db36c5a1 GS |
1450 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_call_body), |
1451 | (OP*)&myop, TRUE); | |
6224f72b GS |
1452 | switch (ret) { |
1453 | case 0: | |
312caa8e CS |
1454 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1455 | if (!(flags & G_KEEPERR)) | |
1456 | sv_setpv(ERRSV,""); | |
4633a7c4 | 1457 | break; |
6224f72b | 1458 | case 1: |
f86702cc | 1459 | STATUS_ALL_FAILURE; |
4633a7c4 | 1460 | /* FALL THROUGH */ |
6224f72b | 1461 | case 2: |
4633a7c4 | 1462 | /* my_exit() was called */ |
3280af22 | 1463 | PL_curstash = PL_defstash; |
4633a7c4 | 1464 | FREETMPS; |
3280af22 | 1465 | if (PL_statusvalue) |
cea2e8a9 | 1466 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 1467 | my_exit_jump(); |
4633a7c4 | 1468 | /* NOTREACHED */ |
6224f72b | 1469 | case 3: |
3280af22 | 1470 | if (PL_restartop) { |
533c011a | 1471 | PL_op = PL_restartop; |
3280af22 | 1472 | PL_restartop = 0; |
312caa8e | 1473 | goto redo_body; |
4633a7c4 | 1474 | } |
3280af22 | 1475 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
1476 | if (flags & G_ARRAY) |
1477 | retval = 0; | |
1478 | else { | |
1479 | retval = 1; | |
3280af22 | 1480 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 1481 | } |
312caa8e | 1482 | break; |
4633a7c4 LW |
1483 | } |
1484 | ||
4633a7c4 | 1485 | if (flags & G_DISCARD) { |
3280af22 | 1486 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
1487 | retval = 0; |
1488 | FREETMPS; | |
1489 | LEAVE; | |
1490 | } | |
533c011a | 1491 | PL_op = oldop; |
4633a7c4 LW |
1492 | return retval; |
1493 | } | |
1494 | ||
137443ea | 1495 | SV* |
864dbfa3 | 1496 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 1497 | { |
1498 | dSP; | |
1499 | SV* sv = newSVpv(p, 0); | |
1500 | ||
924508f0 | 1501 | PUSHMARK(SP); |
864dbfa3 | 1502 | eval_sv(sv, G_SCALAR); |
137443ea | 1503 | SvREFCNT_dec(sv); |
1504 | ||
1505 | SPAGAIN; | |
1506 | sv = POPs; | |
1507 | PUTBACK; | |
1508 | ||
2d8e6c8d GS |
1509 | if (croak_on_error && SvTRUE(ERRSV)) { |
1510 | STRLEN n_a; | |
cea2e8a9 | 1511 | Perl_croak(aTHX_ SvPVx(ERRSV, n_a)); |
2d8e6c8d | 1512 | } |
137443ea | 1513 | |
1514 | return sv; | |
1515 | } | |
1516 | ||
4633a7c4 LW |
1517 | /* Require a module. */ |
1518 | ||
1519 | void | |
864dbfa3 | 1520 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 1521 | { |
d3acc0f7 JP |
1522 | SV* sv; |
1523 | dSP; | |
e788e7d3 | 1524 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 JP |
1525 | PUTBACK; |
1526 | sv = sv_newmortal(); | |
4633a7c4 LW |
1527 | sv_setpv(sv, "require '"); |
1528 | sv_catpv(sv, pv); | |
1529 | sv_catpv(sv, "'"); | |
864dbfa3 | 1530 | eval_sv(sv, G_DISCARD); |
d3acc0f7 JP |
1531 | SPAGAIN; |
1532 | POPSTACK; | |
79072805 LW |
1533 | } |
1534 | ||
79072805 | 1535 | void |
864dbfa3 | 1536 | Perl_magicname(pTHX_ char *sym, char *name, I32 namlen) |
79072805 LW |
1537 | { |
1538 | register GV *gv; | |
1539 | ||
85e6fe83 | 1540 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1541 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1542 | } | |
1543 | ||
76e3520e | 1544 | STATIC void |
cea2e8a9 | 1545 | S_usage(pTHX_ char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 1546 | { |
ab821d7f | 1547 | /* This message really ought to be max 23 lines. |
1548 | * Removed -h because the user already knows that opton. Others? */ | |
fb73857a | 1549 | |
76e3520e | 1550 | static char *usage_msg[] = { |
fb73857a | 1551 | "-0[octal] specify record separator (\\0, if no argument)", |
1552 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
1553 | "-c check syntax only (runs BEGIN and END blocks)", | |
aac3bd0d GS |
1554 | "-d[:debugger] run program under debugger", |
1555 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
1556 | "-e 'command' one line of program (several -e's allowed, omit programfile)", | |
1557 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", | |
1558 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
1559 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
fb73857a | 1560 | "-l[octal] enable line ending processing, specifies line terminator", |
aac3bd0d GS |
1561 | "-[mM][-]module execute `use/no module...' before executing program", |
1562 | "-n assume 'while (<>) { ... }' loop around program", | |
1563 | "-p assume loop like -n but print line also, like sed", | |
1564 | "-P run program through C preprocessor before compilation", | |
1565 | "-s enable rudimentary parsing for switches after programfile", | |
1566 | "-S look for programfile using PATH environment variable", | |
1567 | "-T enable tainting checks", | |
1568 | "-u dump core after parsing program", | |
fb73857a | 1569 | "-U allow unsafe operations", |
aac3bd0d GS |
1570 | "-v print version, subversion (includes VERY IMPORTANT perl info)", |
1571 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
1572 | "-w enable many useful warnings (RECOMMENDED)", | |
fb73857a | 1573 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", |
1574 | "\n", | |
1575 | NULL | |
1576 | }; | |
76e3520e | 1577 | char **p = usage_msg; |
fb73857a | 1578 | |
ab821d7f | 1579 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
fb73857a | 1580 | while (*p) |
1581 | printf("\n %s", *p++); | |
4633a7c4 LW |
1582 | } |
1583 | ||
79072805 LW |
1584 | /* This routine handles any switches that can be given during run */ |
1585 | ||
1586 | char * | |
864dbfa3 | 1587 | Perl_moreswitches(pTHX_ char *s) |
79072805 LW |
1588 | { |
1589 | I32 numlen; | |
c07a80fd | 1590 | U32 rschar; |
79072805 LW |
1591 | |
1592 | switch (*s) { | |
1593 | case '0': | |
a863c7d1 MB |
1594 | { |
1595 | dTHR; | |
dff6d3cd | 1596 | rschar = (U32)scan_oct(s, 4, &numlen); |
3280af22 | 1597 | SvREFCNT_dec(PL_nrs); |
c07a80fd | 1598 | if (rschar & ~((U8)~0)) |
3280af22 | 1599 | PL_nrs = &PL_sv_undef; |
c07a80fd | 1600 | else if (!rschar && numlen >= 2) |
79cb57f6 | 1601 | PL_nrs = newSVpvn("", 0); |
c07a80fd | 1602 | else { |
1603 | char ch = rschar; | |
79cb57f6 | 1604 | PL_nrs = newSVpvn(&ch, 1); |
79072805 LW |
1605 | } |
1606 | return s + numlen; | |
a863c7d1 | 1607 | } |
2304df62 | 1608 | case 'F': |
3280af22 NIS |
1609 | PL_minus_F = TRUE; |
1610 | PL_splitstr = savepv(s + 1); | |
2304df62 AD |
1611 | s += strlen(s); |
1612 | return s; | |
79072805 | 1613 | case 'a': |
3280af22 | 1614 | PL_minus_a = TRUE; |
79072805 LW |
1615 | s++; |
1616 | return s; | |
1617 | case 'c': | |
3280af22 | 1618 | PL_minus_c = TRUE; |
79072805 LW |
1619 | s++; |
1620 | return s; | |
1621 | case 'd': | |
bbce6d69 | 1622 | forbid_setid("-d"); |
4633a7c4 | 1623 | s++; |
c07a80fd | 1624 | if (*s == ':' || *s == '=') { |
cea2e8a9 | 1625 | my_setenv("PERL5DB", Perl_form(aTHX_ "use Devel::%s;", ++s)); |
4633a7c4 | 1626 | s += strlen(s); |
4633a7c4 | 1627 | } |
3280af22 NIS |
1628 | if (!PL_perldb) { |
1629 | PL_perldb = PERLDB_ALL; | |
a0d0e21e LW |
1630 | init_debugger(); |
1631 | } | |
79072805 LW |
1632 | return s; |
1633 | case 'D': | |
0453d815 | 1634 | { |
79072805 | 1635 | #ifdef DEBUGGING |
bbce6d69 | 1636 | forbid_setid("-D"); |
79072805 | 1637 | if (isALPHA(s[1])) { |
8b73bbec | 1638 | static char debopts[] = "psltocPmfrxuLHXDS"; |
79072805 LW |
1639 | char *d; |
1640 | ||
93a17b20 | 1641 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
3280af22 | 1642 | PL_debug |= 1 << (d - debopts); |
79072805 LW |
1643 | } |
1644 | else { | |
3280af22 | 1645 | PL_debug = atoi(s+1); |
79072805 LW |
1646 | for (s++; isDIGIT(*s); s++) ; |
1647 | } | |
3280af22 | 1648 | PL_debug |= 0x80000000; |
79072805 | 1649 | #else |
0453d815 PM |
1650 | dTHR; |
1651 | if (ckWARN_d(WARN_DEBUGGING)) | |
1652 | Perl_warner(aTHX_ WARN_DEBUGGING, | |
1653 | "Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1654 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1655 | #endif |
1656 | /*SUPPRESS 530*/ | |
1657 | return s; | |
0453d815 | 1658 | } |
4633a7c4 | 1659 | case 'h': |
3280af22 | 1660 | usage(PL_origargv[0]); |
6ad3d225 | 1661 | PerlProc_exit(0); |
79072805 | 1662 | case 'i': |
3280af22 NIS |
1663 | if (PL_inplace) |
1664 | Safefree(PL_inplace); | |
1665 | PL_inplace = savepv(s+1); | |
79072805 | 1666 | /*SUPPRESS 530*/ |
3280af22 | 1667 | for (s = PL_inplace; *s && !isSPACE(*s); s++) ; |
7b8d334a | 1668 | if (*s) { |
fb73857a | 1669 | *s++ = '\0'; |
7b8d334a GS |
1670 | if (*s == '-') /* Additional switches on #! line. */ |
1671 | s++; | |
1672 | } | |
fb73857a | 1673 | return s; |
1674 | case 'I': /* -I handled both here and in parse_perl() */ | |
bbce6d69 | 1675 | forbid_setid("-I"); |
fb73857a | 1676 | ++s; |
1677 | while (*s && isSPACE(*s)) | |
1678 | ++s; | |
1679 | if (*s) { | |
774d564b | 1680 | char *e, *p; |
748a9306 | 1681 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b | 1682 | p = savepvn(s, e-s); |
1683 | incpush(p, TRUE); | |
1684 | Safefree(p); | |
fb73857a | 1685 | s = e; |
79072805 LW |
1686 | } |
1687 | else | |
cea2e8a9 | 1688 | Perl_croak(aTHX_ "No space allowed after -I"); |
fb73857a | 1689 | return s; |
79072805 | 1690 | case 'l': |
3280af22 | 1691 | PL_minus_l = TRUE; |
79072805 | 1692 | s++; |
3280af22 NIS |
1693 | if (PL_ors) |
1694 | Safefree(PL_ors); | |
79072805 | 1695 | if (isDIGIT(*s)) { |
3280af22 NIS |
1696 | PL_ors = savepv("\n"); |
1697 | PL_orslen = 1; | |
dff6d3cd | 1698 | *PL_ors = (char)scan_oct(s, 3 + (*s == '0'), &numlen); |
79072805 LW |
1699 | s += numlen; |
1700 | } | |
1701 | else { | |
a863c7d1 | 1702 | dTHR; |
3280af22 NIS |
1703 | if (RsPARA(PL_nrs)) { |
1704 | PL_ors = "\n\n"; | |
1705 | PL_orslen = 2; | |
c07a80fd | 1706 | } |
1707 | else | |
3280af22 NIS |
1708 | PL_ors = SvPV(PL_nrs, PL_orslen); |
1709 | PL_ors = savepvn(PL_ors, PL_orslen); | |
79072805 LW |
1710 | } |
1711 | return s; | |
1a30305b | 1712 | case 'M': |
bbce6d69 | 1713 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 1714 | /* FALL THROUGH */ |
1715 | case 'm': | |
bbce6d69 | 1716 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 1717 | if (*++s) { |
a5f75d66 | 1718 | char *start; |
11343788 | 1719 | SV *sv; |
a5f75d66 AD |
1720 | char *use = "use "; |
1721 | /* -M-foo == 'no foo' */ | |
1722 | if (*s == '-') { use = "no "; ++s; } | |
11343788 | 1723 | sv = newSVpv(use,0); |
a5f75d66 | 1724 | start = s; |
1a30305b | 1725 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1726 | while(isALNUM(*s) || *s==':') ++s; |
1727 | if (*s != '=') { | |
11343788 | 1728 | sv_catpv(sv, start); |
c07a80fd | 1729 | if (*(start-1) == 'm') { |
1730 | if (*s != '\0') | |
cea2e8a9 | 1731 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
11343788 | 1732 | sv_catpv( sv, " ()"); |
c07a80fd | 1733 | } |
1734 | } else { | |
11343788 MB |
1735 | sv_catpvn(sv, start, s-start); |
1736 | sv_catpv(sv, " split(/,/,q{"); | |
1737 | sv_catpv(sv, ++s); | |
1738 | sv_catpv(sv, "})"); | |
c07a80fd | 1739 | } |
1a30305b | 1740 | s += strlen(s); |
3280af22 NIS |
1741 | if (PL_preambleav == NULL) |
1742 | PL_preambleav = newAV(); | |
1743 | av_push(PL_preambleav, sv); | |
1a30305b | 1744 | } |
1745 | else | |
cea2e8a9 | 1746 | Perl_croak(aTHX_ "No space allowed after -%c", *(s-1)); |
1a30305b | 1747 | return s; |
79072805 | 1748 | case 'n': |
3280af22 | 1749 | PL_minus_n = TRUE; |
79072805 LW |
1750 | s++; |
1751 | return s; | |
1752 | case 'p': | |
3280af22 | 1753 | PL_minus_p = TRUE; |
79072805 LW |
1754 | s++; |
1755 | return s; | |
1756 | case 's': | |
bbce6d69 | 1757 | forbid_setid("-s"); |
3280af22 | 1758 | PL_doswitches = TRUE; |
79072805 LW |
1759 | s++; |
1760 | return s; | |
463ee0b2 | 1761 | case 'T': |
3280af22 | 1762 | if (!PL_tainting) |
cea2e8a9 | 1763 | Perl_croak(aTHX_ "Too late for \"-T\" option"); |
463ee0b2 LW |
1764 | s++; |
1765 | return s; | |
79072805 | 1766 | case 'u': |
3280af22 | 1767 | PL_do_undump = TRUE; |
79072805 LW |
1768 | s++; |
1769 | return s; | |
1770 | case 'U': | |
3280af22 | 1771 | PL_unsafe = TRUE; |
79072805 LW |
1772 | s++; |
1773 | return s; | |
1774 | case 'v': | |
cceca5ed GS |
1775 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
1776 | printf("\nThis is perl, version %d.%03d_%02d built for %s", | |
1777 | PERL_REVISION, PERL_VERSION, PERL_SUBVERSION, ARCHNAME); | |
a5f75d66 | 1778 | #else |
fb73857a | 1779 | printf("\nThis is perl, version %s built for %s", |
6b88bc9c | 1780 | PL_patchlevel, ARCHNAME); |
fb73857a | 1781 | #endif |
1782 | #if defined(LOCAL_PATCH_COUNT) | |
1783 | if (LOCAL_PATCH_COUNT > 0) | |
1784 | printf("\n(with %d registered patch%s, see perl -V for more detail)", | |
b900a521 | 1785 | (int)LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 | 1786 | #endif |
1a30305b | 1787 | |
4eb8286e | 1788 | printf("\n\nCopyright 1987-1999, Larry Wall\n"); |
79072805 | 1789 | #ifdef MSDOS |
fb73857a | 1790 | printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
55497cff | 1791 | #endif |
1792 | #ifdef DJGPP | |
1793 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); | |
4eb8286e | 1794 | printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); |
4633a7c4 | 1795 | #endif |
79072805 | 1796 | #ifdef OS2 |
5dd60ef7 | 1797 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
4eb8286e | 1798 | "Version 5 port Copyright (c) 1994-1999, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1799 | #endif |
79072805 | 1800 | #ifdef atarist |
760ac839 | 1801 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1802 | #endif |
a3f9223b | 1803 | #ifdef __BEOS__ |
4eb8286e | 1804 | printf("BeOS port Copyright Tom Spindler, 1997-1999\n"); |
a3f9223b | 1805 | #endif |
1d84e8df | 1806 | #ifdef MPE |
4eb8286e | 1807 | printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1999\n"); |
1d84e8df | 1808 | #endif |
9d116dd7 | 1809 | #ifdef OEMVS |
4eb8286e | 1810 | printf("MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); |
9d116dd7 | 1811 | #endif |
495c5fdc | 1812 | #ifdef __VOS__ |
4eb8286e | 1813 | printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1999\n"); |
495c5fdc | 1814 | #endif |
092bebab | 1815 | #ifdef __OPEN_VM |
4eb8286e | 1816 | printf("VM/ESA port by Neale Ferguson, 1998-1999\n"); |
092bebab | 1817 | #endif |
a1a0e61e | 1818 | #ifdef POSIX_BC |
4eb8286e | 1819 | printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); |
a1a0e61e | 1820 | #endif |
61ae2fbf | 1821 | #ifdef __MINT__ |
4eb8286e | 1822 | printf("MiNT port by Guido Flohr, 1997-1999\n"); |
61ae2fbf | 1823 | #endif |
baed7233 DL |
1824 | #ifdef BINARY_BUILD_NOTICE |
1825 | BINARY_BUILD_NOTICE; | |
1826 | #endif | |
760ac839 | 1827 | printf("\n\ |
79072805 | 1828 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
95103687 GS |
1829 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\ |
1830 | Complete documentation for Perl, including FAQ lists, should be found on\n\ | |
1831 | this system using `man perl' or `perldoc perl'. If you have access to the\n\ | |
1832 | Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n"); | |
6ad3d225 | 1833 | PerlProc_exit(0); |
79072805 | 1834 | case 'w': |
599cee73 PM |
1835 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
1836 | PL_dowarn |= G_WARN_ON; | |
1837 | s++; | |
1838 | return s; | |
1839 | case 'W': | |
1840 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; | |
e24b16f9 | 1841 | PL_compiling.cop_warnings = WARN_ALL ; |
599cee73 PM |
1842 | s++; |
1843 | return s; | |
1844 | case 'X': | |
1845 | PL_dowarn = G_WARN_ALL_OFF; | |
e24b16f9 | 1846 | PL_compiling.cop_warnings = WARN_NONE ; |
79072805 LW |
1847 | s++; |
1848 | return s; | |
a0d0e21e | 1849 | case '*': |
79072805 LW |
1850 | case ' ': |
1851 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1852 | return s+2; | |
1853 | break; | |
a0d0e21e | 1854 | case '-': |
79072805 | 1855 | case 0: |
51882d45 | 1856 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
1857 | case '\r': |
1858 | #endif | |
79072805 LW |
1859 | case '\n': |
1860 | case '\t': | |
1861 | break; | |
aa689395 | 1862 | #ifdef ALTERNATE_SHEBANG |
1863 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
1864 | break; | |
1865 | #endif | |
a0d0e21e | 1866 | case 'P': |
3280af22 | 1867 | if (PL_preprocess) |
a0d0e21e LW |
1868 | return s+1; |
1869 | /* FALL THROUGH */ | |
79072805 | 1870 | default: |
cea2e8a9 | 1871 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 LW |
1872 | } |
1873 | return Nullch; | |
1874 | } | |
1875 | ||
1876 | /* compliments of Tom Christiansen */ | |
1877 | ||
1878 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 1879 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
1880 | |
1881 | void | |
864dbfa3 | 1882 | Perl_my_unexec(pTHX) |
79072805 LW |
1883 | { |
1884 | #ifdef UNEXEC | |
46fc3d4c | 1885 | SV* prog; |
1886 | SV* file; | |
ee580363 | 1887 | int status = 1; |
79072805 LW |
1888 | extern int etext; |
1889 | ||
ee580363 | 1890 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c | 1891 | sv_catpv(prog, "/perl"); |
6b88bc9c | 1892 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c | 1893 | sv_catpv(file, ".perldump"); |
79072805 | 1894 | |
ee580363 GS |
1895 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
1896 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 1897 | PerlProc_exit(status); |
79072805 | 1898 | #else |
a5f75d66 AD |
1899 | # ifdef VMS |
1900 | # include <lib$routines.h> | |
1901 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 1902 | # else |
79072805 | 1903 | ABORT(); /* for use with undump */ |
aa689395 | 1904 | # endif |
a5f75d66 | 1905 | #endif |
79072805 LW |
1906 | } |
1907 | ||
cb68f92d GS |
1908 | /* initialize curinterp */ |
1909 | STATIC void | |
cea2e8a9 | 1910 | S_init_interp(pTHX) |
cb68f92d GS |
1911 | { |
1912 | ||
066ef5b5 | 1913 | #ifdef PERL_OBJECT /* XXX kludge */ |
cb68f92d | 1914 | #define I_REINIT \ |
6b88bc9c GS |
1915 | STMT_START { \ |
1916 | PL_chopset = " \n-"; \ | |
1917 | PL_copline = NOLINE; \ | |
1918 | PL_curcop = &PL_compiling;\ | |
1919 | PL_curcopdb = NULL; \ | |
1920 | PL_dbargs = 0; \ | |
3967c732 | 1921 | PL_dumpindent = 4; \ |
6b88bc9c GS |
1922 | PL_laststatval = -1; \ |
1923 | PL_laststype = OP_STAT; \ | |
1924 | PL_maxscream = -1; \ | |
1925 | PL_maxsysfd = MAXSYSFD; \ | |
1926 | PL_statname = Nullsv; \ | |
1927 | PL_tmps_floor = -1; \ | |
1928 | PL_tmps_ix = -1; \ | |
1929 | PL_op_mask = NULL; \ | |
6b88bc9c GS |
1930 | PL_laststatval = -1; \ |
1931 | PL_laststype = OP_STAT; \ | |
1932 | PL_mess_sv = Nullsv; \ | |
1933 | PL_splitstr = " "; \ | |
1934 | PL_generation = 100; \ | |
1935 | PL_exitlist = NULL; \ | |
1936 | PL_exitlistlen = 0; \ | |
1937 | PL_regindent = 0; \ | |
1938 | PL_in_clean_objs = FALSE; \ | |
1939 | PL_in_clean_all = FALSE; \ | |
1940 | PL_profiledata = NULL; \ | |
1941 | PL_rsfp = Nullfp; \ | |
1942 | PL_rsfp_filters = Nullav; \ | |
24d3c518 | 1943 | PL_dirty = FALSE; \ |
cb68f92d | 1944 | } STMT_END |
9666903d | 1945 | I_REINIT; |
066ef5b5 GS |
1946 | #else |
1947 | # ifdef MULTIPLICITY | |
1948 | # define PERLVAR(var,type) | |
51371543 | 1949 | # define PERLVARA(var,n,type) |
cea2e8a9 | 1950 | # if defined(PERL_IMPLICIT_CONTEXT) |
54aff467 GS |
1951 | # if defined(USE_THREADS) |
1952 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; | |
1953 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
1954 | # else /* !USE_THREADS */ | |
1955 | # define PERLVARI(var,type,init) aTHX->var = init; | |
1956 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
1957 | # endif /* USE_THREADS */ | |
cea2e8a9 | 1958 | # else |
c5be433b GS |
1959 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
1960 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
cea2e8a9 | 1961 | # endif |
066ef5b5 GS |
1962 | # include "intrpvar.h" |
1963 | # ifndef USE_THREADS | |
1964 | # include "thrdvar.h" | |
1965 | # endif | |
1966 | # undef PERLVAR | |
51371543 | 1967 | # undef PERLVARA |
066ef5b5 GS |
1968 | # undef PERLVARI |
1969 | # undef PERLVARIC | |
3967c732 | 1970 | # else |
066ef5b5 | 1971 | # define PERLVAR(var,type) |
51371543 | 1972 | # define PERLVARA(var,n,type) |
533c011a NIS |
1973 | # define PERLVARI(var,type,init) PL_##var = init; |
1974 | # define PERLVARIC(var,type,init) PL_##var = init; | |
066ef5b5 GS |
1975 | # include "intrpvar.h" |
1976 | # ifndef USE_THREADS | |
1977 | # include "thrdvar.h" | |
1978 | # endif | |
1979 | # undef PERLVAR | |
51371543 | 1980 | # undef PERLVARA |
066ef5b5 GS |
1981 | # undef PERLVARI |
1982 | # undef PERLVARIC | |
1983 | # endif | |
cb68f92d GS |
1984 | #endif |
1985 | ||
cb68f92d GS |
1986 | } |
1987 | ||
76e3520e | 1988 | STATIC void |
cea2e8a9 | 1989 | S_init_main_stash(pTHX) |
79072805 | 1990 | { |
11343788 | 1991 | dTHR; |
463ee0b2 | 1992 | GV *gv; |
6e72f9df | 1993 | |
1994 | /* Note that strtab is a rather special HV. Assumptions are made | |
1995 | about not iterating on it, and not adding tie magic to it. | |
1996 | It is properly deallocated in perl_destruct() */ | |
3280af22 | 1997 | PL_strtab = newHV(); |
5f08fbcd GS |
1998 | #ifdef USE_THREADS |
1999 | MUTEX_INIT(&PL_strtab_mutex); | |
2000 | #endif | |
3280af22 NIS |
2001 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
2002 | hv_ksplit(PL_strtab, 512); | |
6e72f9df | 2003 | |
3280af22 | 2004 | PL_curstash = PL_defstash = newHV(); |
79cb57f6 | 2005 | PL_curstname = newSVpvn("main",4); |
adbc6bb1 LW |
2006 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
2007 | SvREFCNT_dec(GvHV(gv)); | |
3280af22 | 2008 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 | 2009 | SvREADONLY_on(gv); |
3280af22 NIS |
2010 | HvNAME(PL_defstash) = savepv("main"); |
2011 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); | |
2012 | GvMULTI_on(PL_incgv); | |
2013 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ | |
2014 | GvMULTI_on(PL_hintgv); | |
2015 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); | |
2016 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); | |
2017 | GvMULTI_on(PL_errgv); | |
2018 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ | |
2019 | GvMULTI_on(PL_replgv); | |
cea2e8a9 | 2020 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e MB |
2021 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
2022 | sv_setpvn(ERRSV, "", 0); | |
3280af22 NIS |
2023 | PL_curstash = PL_defstash; |
2024 | PL_compiling.cop_stash = PL_defstash; | |
2025 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); | |
2026 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); | |
4633a7c4 | 2027 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 2028 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
2029 | } |
2030 | ||
76e3520e | 2031 | STATIC void |
cea2e8a9 | 2032 | S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript) |
79072805 | 2033 | { |
0f15f207 | 2034 | dTHR; |
79072805 | 2035 | register char *s; |
2a92aaa0 | 2036 | |
6c4ab083 | 2037 | *fdscript = -1; |
79072805 | 2038 | |
3280af22 NIS |
2039 | if (PL_e_script) { |
2040 | PL_origfilename = savepv("-e"); | |
96436eeb | 2041 | } |
6c4ab083 GS |
2042 | else { |
2043 | /* if find_script() returns, it returns a malloc()-ed value */ | |
3280af22 | 2044 | PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
2045 | |
2046 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
2047 | char *s = scriptname + 8; | |
2048 | *fdscript = atoi(s); | |
2049 | while (isDIGIT(*s)) | |
2050 | s++; | |
2051 | if (*s) { | |
2052 | scriptname = savepv(s + 1); | |
3280af22 NIS |
2053 | Safefree(PL_origfilename); |
2054 | PL_origfilename = scriptname; | |
6c4ab083 GS |
2055 | } |
2056 | } | |
2057 | } | |
2058 | ||
cc49e20b | 2059 | CopFILEGV_set(PL_curcop, gv_fetchfile(PL_origfilename)); |
3280af22 | 2060 | if (strEQ(PL_origfilename,"-")) |
79072805 | 2061 | scriptname = ""; |
01f988be | 2062 | if (*fdscript >= 0) { |
3280af22 | 2063 | PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE); |
96436eeb | 2064 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 NIS |
2065 | if (PL_rsfp) |
2066 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 2067 | #endif |
2068 | } | |
3280af22 | 2069 | else if (PL_preprocess) { |
46fc3d4c | 2070 | char *cpp_cfg = CPPSTDIN; |
79cb57f6 | 2071 | SV *cpp = newSVpvn("",0); |
46fc3d4c | 2072 | SV *cmd = NEWSV(0,0); |
2073 | ||
2074 | if (strEQ(cpp_cfg, "cppstdin")) | |
cea2e8a9 | 2075 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 2076 | sv_catpv(cpp, cpp_cfg); |
79072805 | 2077 | |
79072805 | 2078 | sv_catpv(sv,"-I"); |
fed7345c | 2079 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c | 2080 | |
79072805 | 2081 | #ifdef MSDOS |
cea2e8a9 | 2082 | Perl_sv_setpvf(aTHX_ cmd, "\ |
79072805 LW |
2083 | sed %s -e \"/^[^#]/b\" \ |
2084 | -e \"/^#[ ]*include[ ]/b\" \ | |
2085 | -e \"/^#[ ]*define[ ]/b\" \ | |
2086 | -e \"/^#[ ]*if[ ]/b\" \ | |
2087 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
2088 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
2089 | -e \"/^#[ ]*else/b\" \ | |
2090 | -e \"/^#[ ]*elif[ ]/b\" \ | |
2091 | -e \"/^#[ ]*undef[ ]/b\" \ | |
2092 | -e \"/^#[ ]*endif/b\" \ | |
2093 | -e \"s/^#.*//\" \ | |
fc36a67e | 2094 | %s | %_ -C %_ %s", |
6b88bc9c | 2095 | (PL_doextract ? "-e \"1,/^#/d\n\"" : ""), |
79072805 | 2096 | #else |
092bebab | 2097 | # ifdef __OPEN_VM |
cea2e8a9 | 2098 | Perl_sv_setpvf(aTHX_ cmd, "\ |
092bebab JH |
2099 | %s %s -e '/^[^#]/b' \ |
2100 | -e '/^#[ ]*include[ ]/b' \ | |
2101 | -e '/^#[ ]*define[ ]/b' \ | |
2102 | -e '/^#[ ]*if[ ]/b' \ | |
2103 | -e '/^#[ ]*ifdef[ ]/b' \ | |
2104 | -e '/^#[ ]*ifndef[ ]/b' \ | |
2105 | -e '/^#[ ]*else/b' \ | |
2106 | -e '/^#[ ]*elif[ ]/b' \ | |
2107 | -e '/^#[ ]*undef[ ]/b' \ | |
2108 | -e '/^#[ ]*endif/b' \ | |
2109 | -e 's/^[ ]*#.*//' \ | |
2110 | %s | %_ %_ %s", | |
2111 | # else | |
cea2e8a9 | 2112 | Perl_sv_setpvf(aTHX_ cmd, "\ |
79072805 LW |
2113 | %s %s -e '/^[^#]/b' \ |
2114 | -e '/^#[ ]*include[ ]/b' \ | |
2115 | -e '/^#[ ]*define[ ]/b' \ | |
2116 | -e '/^#[ ]*if[ ]/b' \ | |
2117 | -e '/^#[ ]*ifdef[ ]/b' \ | |
2118 | -e '/^#[ ]*ifndef[ ]/b' \ | |
2119 | -e '/^#[ ]*else/b' \ | |
2120 | -e '/^#[ ]*elif[ ]/b' \ | |
2121 | -e '/^#[ ]*undef[ ]/b' \ | |
2122 | -e '/^#[ ]*endif/b' \ | |
2123 | -e 's/^[ ]*#.*//' \ | |
fc36a67e | 2124 | %s | %_ -C %_ %s", |
092bebab | 2125 | # endif |
79072805 LW |
2126 | #ifdef LOC_SED |
2127 | LOC_SED, | |
2128 | #else | |
2129 | "sed", | |
2130 | #endif | |
3280af22 | 2131 | (PL_doextract ? "-e '1,/^#/d\n'" : ""), |
79072805 | 2132 | #endif |
46fc3d4c | 2133 | scriptname, cpp, sv, CPPMINUS); |
3280af22 | 2134 | PL_doextract = FALSE; |
79072805 | 2135 | #ifdef IAMSUID /* actually, this is caught earlier */ |
b28d0864 | 2136 | if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */ |
79072805 | 2137 | #ifdef HAS_SETEUID |
b28d0864 | 2138 | (void)seteuid(PL_uid); /* musn't stay setuid root */ |
79072805 LW |
2139 | #else |
2140 | #ifdef HAS_SETREUID | |
b28d0864 | 2141 | (void)setreuid((Uid_t)-1, PL_uid); |
85e6fe83 LW |
2142 | #else |
2143 | #ifdef HAS_SETRESUID | |
b28d0864 | 2144 | (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1); |
79072805 | 2145 | #else |
b28d0864 | 2146 | PerlProc_setuid(PL_uid); |
79072805 LW |
2147 | #endif |
2148 | #endif | |
85e6fe83 | 2149 | #endif |
b28d0864 | 2150 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 2151 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
79072805 LW |
2152 | } |
2153 | #endif /* IAMSUID */ | |
3280af22 | 2154 | PL_rsfp = PerlProc_popen(SvPVX(cmd), "r"); |
46fc3d4c | 2155 | SvREFCNT_dec(cmd); |
2156 | SvREFCNT_dec(cpp); | |
79072805 LW |
2157 | } |
2158 | else if (!*scriptname) { | |
bbce6d69 | 2159 | forbid_setid("program input from stdin"); |
3280af22 | 2160 | PL_rsfp = PerlIO_stdin(); |
79072805 | 2161 | } |
96436eeb | 2162 | else { |
3280af22 | 2163 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
96436eeb | 2164 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 NIS |
2165 | if (PL_rsfp) |
2166 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 2167 | #endif |
2168 | } | |
3280af22 | 2169 | if (!PL_rsfp) { |
13281fa4 | 2170 | #ifdef DOSUID |
a687059c | 2171 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
6b88bc9c | 2172 | if (PL_euid && |
cc49e20b | 2173 | PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 && |
6b88bc9c GS |
2174 | PL_statbuf.st_mode & (S_ISUID|S_ISGID)) |
2175 | { | |
46fc3d4c | 2176 | /* try again */ |
cea2e8a9 GS |
2177 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
2178 | Perl_croak(aTHX_ "Can't do setuid\n"); | |
13281fa4 LW |
2179 | } |
2180 | #endif | |
2181 | #endif | |
cea2e8a9 | 2182 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", |
cc49e20b | 2183 | CopFILE(PL_curcop), Strerror(errno)); |
13281fa4 | 2184 | } |
79072805 | 2185 | } |
8d063cd8 | 2186 | |
7b89560d JH |
2187 | /* Mention |
2188 | * I_SYSSTATVFS HAS_FSTATVFS | |
2189 | * I_SYSMOUNT | |
2190 | * I_STATFS HAS_FSTATFS | |
2191 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT | |
2192 | * here so that metaconfig picks them up. */ | |
2193 | ||
104d25b7 | 2194 | #ifdef IAMSUID |
864dbfa3 | 2195 | STATIC int |
e688b231 | 2196 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 2197 | { |
0545a864 JH |
2198 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
2199 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
104d25b7 | 2200 | /* |
ad27e871 | 2201 | * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent(). |
e688b231 | 2202 | * fstatvfs() is UNIX98. |
0545a864 | 2203 | * fstatfs() is 4.3 BSD. |
ad27e871 | 2204 | * ustat()+getmnt() is pre-4.3 BSD. |
0545a864 JH |
2205 | * getmntent() is O(number-of-mounted-filesystems) and can hang on |
2206 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
2207 | */ |
2208 | ||
2209 | # ifdef HAS_FSTATVFS | |
2210 | struct statvfs stfs; | |
2211 | check_okay = fstatvfs(fd, &stfs) == 0; | |
2212 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
2213 | # else | |
0545a864 | 2214 | # ifdef PERL_MOUNT_NOSUID |
ad27e871 JH |
2215 | # if defined(HAS_FSTATFS) && \ |
2216 | defined(HAS_STRUCT_STATFS) && \ | |
2217 | defined(HAS_STRUCT_STATFS_F_FLAGS) | |
e688b231 | 2218 | struct statfs stfs; |
104d25b7 | 2219 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 2220 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
0545a864 JH |
2221 | # else |
2222 | # if defined(HAS_FSTAT) && \ | |
2223 | defined(HAS_USTAT) && \ | |
ad27e871 JH |
2224 | defined(HAS_GETMNT) && \ |
2225 | defined(HAS_STRUCT_FS_DATA) && | |
2226 | defined(NOSTAT_ONE) | |
0545a864 JH |
2227 | struct stat fdst; |
2228 | if (fstat(fd, &fdst) == 0) { | |
2229 | struct ustat us; | |
2230 | if (ustat(fdst.st_dev, &us) == 0) { | |
2231 | struct fs_data fsd; | |
ad27e871 JH |
2232 | /* NOSTAT_ONE here because we're not examining fields which |
2233 | * vary between that case and STAT_ONE. */ | |
2234 | if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) { | |
0545a864 JH |
2235 | size_t cmplen = sizeof(us.f_fname); |
2236 | if (sizeof(fsd.fd_req.path) < cmplen) | |
2237 | cmplen = sizeof(fsd.fd_req.path); | |
2238 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
2239 | fdst.st_dev == fsd.fd_req.dev) { | |
2240 | check_okay = 1; | |
2241 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
2242 | } | |
2243 | } | |
2244 | } | |
2245 | } | |
2246 | } | |
ad27e871 JH |
2247 | # endif /* fstat+ustat+getmnt */ |
2248 | # endif /* fstatfs */ | |
104d25b7 | 2249 | # else |
0545a864 JH |
2250 | # if defined(HAS_GETMNTENT) && \ |
2251 | defined(HAS_HASMNTOPT) && \ | |
2252 | defined(MNTOPT_NOSUID) | |
104d25b7 JH |
2253 | FILE *mtab = fopen("/etc/mtab", "r"); |
2254 | struct mntent *entry; | |
2255 | struct stat stb, fsb; | |
2256 | ||
2257 | if (mtab && (fstat(fd, &stb) == 0)) { | |
e688b231 JH |
2258 | while (entry = getmntent(mtab)) { |
2259 | if (stat(entry->mnt_dir, &fsb) == 0 | |
2260 | && fsb.st_dev == stb.st_dev) | |
104d25b7 JH |
2261 | { |
2262 | /* found the filesystem */ | |
2263 | check_okay = 1; | |
2264 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
2265 | on_nosuid = 1; | |
2266 | break; | |
e688b231 | 2267 | } /* A single fs may well fail its stat(). */ |
104d25b7 JH |
2268 | } |
2269 | } | |
2270 | if (mtab) | |
2271 | fclose(mtab); | |
ad27e871 | 2272 | # endif /* getmntent+hasmntopt */ |
0545a864 | 2273 | # endif /* PERL_MOUNT_NOSUID: fstatfs or fstat+ustat+statfs */ |
e688b231 | 2274 | # endif /* statvfs */ |
0545a864 | 2275 | |
104d25b7 | 2276 | if (!check_okay) |
0545a864 | 2277 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename); |
104d25b7 JH |
2278 | return on_nosuid; |
2279 | } | |
2280 | #endif /* IAMSUID */ | |
2281 | ||
76e3520e | 2282 | STATIC void |
cea2e8a9 | 2283 | S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript) |
79072805 | 2284 | { |
96436eeb | 2285 | int which; |
2286 | ||
13281fa4 LW |
2287 | /* do we need to emulate setuid on scripts? */ |
2288 | ||
2289 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
2290 | * in the kernel because of a security problem. Merely defining DOSUID | |
2291 | * in perl will not fix that problem, but if you have disabled setuid | |
2292 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
2293 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
2294 | * root version must be called suidperl or sperlN.NNN. If regular perl |
2295 | * discovers that it has opened a setuid script, it calls suidperl with | |
2296 | * the same argv that it had. If suidperl finds that the script it has | |
2297 | * just opened is NOT setuid root, it sets the effective uid back to the | |
2298 | * uid. We don't just make perl setuid root because that loses the | |
2299 | * effective uid we had before invoking perl, if it was different from the | |
2300 | * uid. | |
13281fa4 LW |
2301 | * |
2302 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
2303 | * be defined in suidperl only. suidperl must be setuid root. The | |
2304 | * Configure script will set this up for you if you want it. | |
2305 | */ | |
a687059c | 2306 | |
13281fa4 | 2307 | #ifdef DOSUID |
ea0efc06 | 2308 | dTHR; |
6e72f9df | 2309 | char *s, *s2; |
a0d0e21e | 2310 | |
b28d0864 | 2311 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 2312 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
b28d0864 | 2313 | if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 2314 | I32 len; |
2d8e6c8d | 2315 | STRLEN n_a; |
13281fa4 | 2316 | |
a687059c | 2317 | #ifdef IAMSUID |
fe14fcc3 | 2318 | #ifndef HAS_SETREUID |
a687059c LW |
2319 | /* On this access check to make sure the directories are readable, |
2320 | * there is actually a small window that the user could use to make | |
2321 | * filename point to an accessible directory. So there is a faint | |
2322 | * chance that someone could execute a setuid script down in a | |
2323 | * non-accessible directory. I don't know what to do about that. | |
2324 | * But I don't think it's too important. The manual lies when | |
2325 | * it says access() is useful in setuid programs. | |
2326 | */ | |
cc49e20b | 2327 | if (PerlLIO_access(CopFILE(PL_curcop),1)) /*double check*/ |
cea2e8a9 | 2328 | Perl_croak(aTHX_ "Permission denied"); |
a687059c LW |
2329 | #else |
2330 | /* If we can swap euid and uid, then we can determine access rights | |
2331 | * with a simple stat of the file, and then compare device and | |
2332 | * inode to make sure we did stat() on the same file we opened. | |
2333 | * Then we just have to make sure he or she can execute it. | |
2334 | */ | |
2335 | { | |
2336 | struct stat tmpstatbuf; | |
2337 | ||
85e6fe83 LW |
2338 | if ( |
2339 | #ifdef HAS_SETREUID | |
b28d0864 | 2340 | setreuid(PL_euid,PL_uid) < 0 |
a0d0e21e LW |
2341 | #else |
2342 | # if HAS_SETRESUID | |
b28d0864 | 2343 | setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0 |
a0d0e21e | 2344 | # endif |
85e6fe83 | 2345 | #endif |
b28d0864 | 2346 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 2347 | Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */ |
cc49e20b | 2348 | if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0) |
cea2e8a9 | 2349 | Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */ |
2bb3463c | 2350 | #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK) |
e688b231 | 2351 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) |
cea2e8a9 | 2352 | Perl_croak(aTHX_ "Permission denied"); |
104d25b7 | 2353 | #endif |
b28d0864 NIS |
2354 | if (tmpstatbuf.st_dev != PL_statbuf.st_dev || |
2355 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { | |
2356 | (void)PerlIO_close(PL_rsfp); | |
2357 | if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */ | |
2358 | PerlIO_printf(PL_rsfp, | |
785fb66b JH |
2359 | "User %"Uid_t_f" tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2360 | (Filename of set-id script was %s, uid %"Uid_t_f" gid %"Gid_t_f".)\n\nSincerely,\nperl\n", | |
2361 | PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, | |
b28d0864 | 2362 | (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino, |
cc49e20b | 2363 | CopFILE(PL_curcop), |
785fb66b | 2364 | PL_statbuf.st_uid, PL_statbuf.st_gid); |
b28d0864 | 2365 | (void)PerlProc_pclose(PL_rsfp); |
a687059c | 2366 | } |
cea2e8a9 | 2367 | Perl_croak(aTHX_ "Permission denied\n"); |
a687059c | 2368 | } |
85e6fe83 LW |
2369 | if ( |
2370 | #ifdef HAS_SETREUID | |
b28d0864 | 2371 | setreuid(PL_uid,PL_euid) < 0 |
a0d0e21e LW |
2372 | #else |
2373 | # if defined(HAS_SETRESUID) | |
b28d0864 | 2374 | setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0 |
a0d0e21e | 2375 | # endif |
85e6fe83 | 2376 | #endif |
b28d0864 | 2377 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) |
cea2e8a9 | 2378 | Perl_croak(aTHX_ "Can't reswap uid and euid"); |
b28d0864 | 2379 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
cea2e8a9 | 2380 | Perl_croak(aTHX_ "Permission denied\n"); |
a687059c | 2381 | } |
fe14fcc3 | 2382 | #endif /* HAS_SETREUID */ |
a687059c LW |
2383 | #endif /* IAMSUID */ |
2384 | ||
b28d0864 | 2385 | if (!S_ISREG(PL_statbuf.st_mode)) |
cea2e8a9 | 2386 | Perl_croak(aTHX_ "Permission denied"); |
b28d0864 | 2387 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 2388 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c GS |
2389 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
2390 | PL_curcop->cop_line++; | |
2391 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || | |
2d8e6c8d | 2392 | strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */ |
cea2e8a9 | 2393 | Perl_croak(aTHX_ "No #! line"); |
2d8e6c8d | 2394 | s = SvPV(PL_linestr,n_a)+2; |
663a0e37 | 2395 | if (*s == ' ') s++; |
45d8adaa | 2396 | while (!isSPACE(*s)) s++; |
2d8e6c8d | 2397 | for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 && |
6e72f9df | 2398 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2399 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
cea2e8a9 | 2400 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 2401 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
2402 | /* |
2403 | * #! arg must be what we saw above. They can invoke it by | |
2404 | * mentioning suidperl explicitly, but they may not add any strange | |
2405 | * arguments beyond what #! says if they do invoke suidperl that way. | |
2406 | */ | |
2407 | len = strlen(validarg); | |
2408 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 2409 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
cea2e8a9 | 2410 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
2411 | |
2412 | #ifndef IAMSUID | |
b28d0864 NIS |
2413 | if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
2414 | PL_euid == PL_statbuf.st_uid) | |
2415 | if (!PL_do_undump) | |
cea2e8a9 | 2416 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2417 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2418 | #endif /* IAMSUID */ | |
13281fa4 | 2419 | |
b28d0864 NIS |
2420 | if (PL_euid) { /* oops, we're not the setuid root perl */ |
2421 | (void)PerlIO_close(PL_rsfp); | |
13281fa4 | 2422 | #ifndef IAMSUID |
46fc3d4c | 2423 | /* try again */ |
cea2e8a9 | 2424 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
13281fa4 | 2425 | #endif |
cea2e8a9 | 2426 | Perl_croak(aTHX_ "Can't do setuid\n"); |
13281fa4 LW |
2427 | } |
2428 | ||
b28d0864 | 2429 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
fe14fcc3 | 2430 | #ifdef HAS_SETEGID |
b28d0864 | 2431 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 2432 | #else |
fe14fcc3 | 2433 | #ifdef HAS_SETREGID |
b28d0864 | 2434 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
2435 | #else |
2436 | #ifdef HAS_SETRESGID | |
b28d0864 | 2437 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 2438 | #else |
b28d0864 | 2439 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
2440 | #endif |
2441 | #endif | |
85e6fe83 | 2442 | #endif |
b28d0864 | 2443 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 2444 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 2445 | } |
b28d0864 NIS |
2446 | if (PL_statbuf.st_mode & S_ISUID) { |
2447 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 2448 | #ifdef HAS_SETEUID |
b28d0864 | 2449 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 2450 | #else |
fe14fcc3 | 2451 | #ifdef HAS_SETREUID |
b28d0864 | 2452 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
2453 | #else |
2454 | #ifdef HAS_SETRESUID | |
b28d0864 | 2455 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 2456 | #else |
b28d0864 | 2457 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
2458 | #endif |
2459 | #endif | |
85e6fe83 | 2460 | #endif |
b28d0864 | 2461 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 2462 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 2463 | } |
b28d0864 | 2464 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 2465 | #ifdef HAS_SETEUID |
b28d0864 | 2466 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 2467 | #else |
fe14fcc3 | 2468 | #ifdef HAS_SETREUID |
b28d0864 | 2469 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 2470 | #else |
85e6fe83 | 2471 | #ifdef HAS_SETRESUID |
b28d0864 | 2472 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 2473 | #else |
b28d0864 | 2474 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 2475 | #endif |
a687059c LW |
2476 | #endif |
2477 | #endif | |
b28d0864 | 2478 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 2479 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 2480 | } |
748a9306 | 2481 | init_ids(); |
b28d0864 | 2482 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
cea2e8a9 | 2483 | Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
2484 | } |
2485 | #ifdef IAMSUID | |
6b88bc9c | 2486 | else if (PL_preprocess) |
cea2e8a9 | 2487 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
96436eeb | 2488 | else if (fdscript >= 0) |
cea2e8a9 | 2489 | Perl_croak(aTHX_ "fd script not allowed in suidperl\n"); |
13281fa4 | 2490 | else |
cea2e8a9 | 2491 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); |
96436eeb | 2492 | |
2493 | /* We absolutely must clear out any saved ids here, so we */ | |
2494 | /* exec the real perl, substituting fd script for scriptname. */ | |
2495 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
b28d0864 NIS |
2496 | PerlIO_rewind(PL_rsfp); |
2497 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
6b88bc9c GS |
2498 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; |
2499 | if (!PL_origargv[which]) | |
cea2e8a9 GS |
2500 | Perl_croak(aTHX_ "Permission denied"); |
2501 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
6b88bc9c | 2502 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); |
96436eeb | 2503 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 2504 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 2505 | #endif |
cea2e8a9 GS |
2506 | PerlProc_execv(Perl_form(aTHX_ "%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */ |
2507 | Perl_croak(aTHX_ "Can't do setuid\n"); | |
13281fa4 | 2508 | #endif /* IAMSUID */ |
a687059c | 2509 | #else /* !DOSUID */ |
3280af22 | 2510 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 2511 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
96827780 | 2512 | dTHR; |
b28d0864 NIS |
2513 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
2514 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 2515 | || |
b28d0864 | 2516 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 2517 | ) |
b28d0864 | 2518 | if (!PL_do_undump) |
cea2e8a9 | 2519 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2520 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2521 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
2522 | /* not set-id, must be wrapped */ | |
a687059c | 2523 | } |
13281fa4 | 2524 | #endif /* DOSUID */ |
79072805 | 2525 | } |
13281fa4 | 2526 | |
76e3520e | 2527 | STATIC void |
cea2e8a9 | 2528 | S_find_beginning(pTHX) |
79072805 | 2529 | { |
6e72f9df | 2530 | register char *s, *s2; |
33b78306 LW |
2531 | |
2532 | /* skip forward in input to the real script? */ | |
2533 | ||
bbce6d69 | 2534 | forbid_setid("-x"); |
3280af22 NIS |
2535 | while (PL_doextract) { |
2536 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) | |
cea2e8a9 | 2537 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
6e72f9df | 2538 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
3280af22 NIS |
2539 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
2540 | PL_doextract = FALSE; | |
6e72f9df | 2541 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2542 | s2 = s; | |
2543 | while (*s == ' ' || *s == '\t') s++; | |
2544 | if (*s++ == '-') { | |
2545 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
2546 | if (strnEQ(s2-4,"perl",4)) | |
2547 | /*SUPPRESS 530*/ | |
2548 | while (s = moreswitches(s)) ; | |
33b78306 | 2549 | } |
83025b21 LW |
2550 | } |
2551 | } | |
2552 | } | |
2553 | ||
afe37c7d | 2554 | |
76e3520e | 2555 | STATIC void |
cea2e8a9 | 2556 | S_init_ids(pTHX) |
352d5a3a | 2557 | { |
d8eceb89 JH |
2558 | PL_uid = PerlProc_getuid(); |
2559 | PL_euid = PerlProc_geteuid(); | |
2560 | PL_gid = PerlProc_getgid(); | |
2561 | PL_egid = PerlProc_getegid(); | |
748a9306 | 2562 | #ifdef VMS |
b28d0864 NIS |
2563 | PL_uid |= PL_gid << 16; |
2564 | PL_euid |= PL_egid << 16; | |
748a9306 | 2565 | #endif |
3280af22 | 2566 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
748a9306 | 2567 | } |
79072805 | 2568 | |
76e3520e | 2569 | STATIC void |
cea2e8a9 | 2570 | S_forbid_setid(pTHX_ char *s) |
bbce6d69 | 2571 | { |
3280af22 | 2572 | if (PL_euid != PL_uid) |
cea2e8a9 | 2573 | Perl_croak(aTHX_ "No %s allowed while running setuid", s); |
3280af22 | 2574 | if (PL_egid != PL_gid) |
cea2e8a9 | 2575 | Perl_croak(aTHX_ "No %s allowed while running setgid", s); |
bbce6d69 | 2576 | } |
2577 | ||
1ee4443e IZ |
2578 | void |
2579 | Perl_init_debugger(pTHX) | |
748a9306 | 2580 | { |
11343788 | 2581 | dTHR; |
1ee4443e IZ |
2582 | HV *ostash = PL_curstash; |
2583 | ||
3280af22 NIS |
2584 | PL_curstash = PL_debstash; |
2585 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); | |
2586 | AvREAL_off(PL_dbargs); | |
2587 | PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); | |
2588 | PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
2589 | PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); | |
1ee4443e | 2590 | sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */ |
3280af22 NIS |
2591 | PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
2592 | sv_setiv(PL_DBsingle, 0); | |
2593 | PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); | |
2594 | sv_setiv(PL_DBtrace, 0); | |
2595 | PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); | |
2596 | sv_setiv(PL_DBsignal, 0); | |
1ee4443e | 2597 | PL_curstash = ostash; |
352d5a3a LW |
2598 | } |
2599 | ||
2ce36478 SM |
2600 | #ifndef STRESS_REALLOC |
2601 | #define REASONABLE(size) (size) | |
2602 | #else | |
2603 | #define REASONABLE(size) (1) /* unreasonable */ | |
2604 | #endif | |
2605 | ||
11343788 | 2606 | void |
cea2e8a9 | 2607 | Perl_init_stacks(pTHX) |
79072805 | 2608 | { |
e336de0d | 2609 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 2610 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 2611 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
2612 | PL_curstackinfo->si_type = PERLSI_MAIN; |
2613 | PL_curstack = PL_curstackinfo->si_stack; | |
2614 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 2615 | |
3280af22 NIS |
2616 | PL_stack_base = AvARRAY(PL_curstack); |
2617 | PL_stack_sp = PL_stack_base; | |
2618 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 2619 | |
3280af22 NIS |
2620 | New(50,PL_tmps_stack,REASONABLE(128),SV*); |
2621 | PL_tmps_floor = -1; | |
2622 | PL_tmps_ix = -1; | |
2623 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 2624 | |
3280af22 NIS |
2625 | New(54,PL_markstack,REASONABLE(32),I32); |
2626 | PL_markstack_ptr = PL_markstack; | |
2627 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 2628 | |
e336de0d GS |
2629 | SET_MARKBASE; |
2630 | ||
3280af22 NIS |
2631 | New(54,PL_scopestack,REASONABLE(32),I32); |
2632 | PL_scopestack_ix = 0; | |
2633 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 2634 | |
3280af22 NIS |
2635 | New(54,PL_savestack,REASONABLE(128),ANY); |
2636 | PL_savestack_ix = 0; | |
2637 | PL_savestack_max = REASONABLE(128); | |
79072805 | 2638 | |
3280af22 NIS |
2639 | New(54,PL_retstack,REASONABLE(16),OP*); |
2640 | PL_retstack_ix = 0; | |
2641 | PL_retstack_max = REASONABLE(16); | |
378cc40b | 2642 | } |
33b78306 | 2643 | |
2ce36478 SM |
2644 | #undef REASONABLE |
2645 | ||
76e3520e | 2646 | STATIC void |
cea2e8a9 | 2647 | S_nuke_stacks(pTHX) |
6e72f9df | 2648 | { |
e858de61 | 2649 | dTHR; |
3280af22 NIS |
2650 | while (PL_curstackinfo->si_next) |
2651 | PL_curstackinfo = PL_curstackinfo->si_next; | |
2652 | while (PL_curstackinfo) { | |
2653 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 2654 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
2655 | Safefree(PL_curstackinfo->si_cxstack); |
2656 | Safefree(PL_curstackinfo); | |
2657 | PL_curstackinfo = p; | |
e336de0d | 2658 | } |
3280af22 NIS |
2659 | Safefree(PL_tmps_stack); |
2660 | Safefree(PL_markstack); | |
2661 | Safefree(PL_scopestack); | |
2662 | Safefree(PL_savestack); | |
2663 | Safefree(PL_retstack); | |
378cc40b | 2664 | } |
33b78306 | 2665 | |
76e3520e | 2666 | #ifndef PERL_OBJECT |
760ac839 | 2667 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
76e3520e | 2668 | #endif |
7aa04957 | 2669 | |
76e3520e | 2670 | STATIC void |
cea2e8a9 | 2671 | S_init_lexer(pTHX) |
8990e307 | 2672 | { |
76e3520e GS |
2673 | #ifdef PERL_OBJECT |
2674 | PerlIO *tmpfp; | |
2675 | #endif | |
3280af22 NIS |
2676 | tmpfp = PL_rsfp; |
2677 | PL_rsfp = Nullfp; | |
2678 | lex_start(PL_linestr); | |
2679 | PL_rsfp = tmpfp; | |
79cb57f6 | 2680 | PL_subname = newSVpvn("main",4); |
8990e307 LW |
2681 | } |
2682 | ||
76e3520e | 2683 | STATIC void |
cea2e8a9 | 2684 | S_init_predump_symbols(pTHX) |
45d8adaa | 2685 | { |
11343788 | 2686 | dTHR; |
93a17b20 | 2687 | GV *tmpgv; |
a0d0e21e | 2688 | GV *othergv; |
af8c498a | 2689 | IO *io; |
79072805 | 2690 | |
864dbfa3 | 2691 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
3280af22 NIS |
2692 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
2693 | GvMULTI_on(PL_stdingv); | |
af8c498a GS |
2694 | io = GvIOp(PL_stdingv); |
2695 | IoIFP(io) = PerlIO_stdin(); | |
adbc6bb1 | 2696 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2697 | GvMULTI_on(tmpgv); |
af8c498a | 2698 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 2699 | |
85e6fe83 | 2700 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2701 | GvMULTI_on(tmpgv); |
af8c498a GS |
2702 | io = GvIOp(tmpgv); |
2703 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); | |
4633a7c4 | 2704 | setdefout(tmpgv); |
adbc6bb1 | 2705 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2706 | GvMULTI_on(tmpgv); |
af8c498a | 2707 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 2708 | |
bf49b057 GS |
2709 | PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
2710 | GvMULTI_on(PL_stderrgv); | |
2711 | io = GvIOp(PL_stderrgv); | |
af8c498a | 2712 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
adbc6bb1 | 2713 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2714 | GvMULTI_on(tmpgv); |
af8c498a | 2715 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 2716 | |
3280af22 | 2717 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f | 2718 | |
3280af22 NIS |
2719 | if (!PL_osname) |
2720 | PL_osname = savepv(OSNAME); | |
79072805 | 2721 | } |
33b78306 | 2722 | |
76e3520e | 2723 | STATIC void |
cea2e8a9 | 2724 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) |
33b78306 | 2725 | { |
a863c7d1 | 2726 | dTHR; |
79072805 LW |
2727 | char *s; |
2728 | SV *sv; | |
2729 | GV* tmpgv; | |
fe14fcc3 | 2730 | |
79072805 | 2731 | argc--,argv++; /* skip name of script */ |
3280af22 | 2732 | if (PL_doswitches) { |
79072805 LW |
2733 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2734 | if (!argv[0][1]) | |
2735 | break; | |
2736 | if (argv[0][1] == '-') { | |
2737 | argc--,argv++; | |
2738 | break; | |
2739 | } | |
93a17b20 | 2740 | if (s = strchr(argv[0], '=')) { |
79072805 | 2741 | *s++ = '\0'; |
85e6fe83 | 2742 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2743 | } |
2744 | else | |
85e6fe83 | 2745 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2746 | } |
79072805 | 2747 | } |
3280af22 NIS |
2748 | PL_toptarget = NEWSV(0,0); |
2749 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
2750 | sv_setpvn(PL_toptarget, "", 0); | |
2751 | PL_bodytarget = NEWSV(0,0); | |
2752 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
2753 | sv_setpvn(PL_bodytarget, "", 0); | |
2754 | PL_formtarget = PL_bodytarget; | |
79072805 | 2755 | |
bbce6d69 | 2756 | TAINT; |
85e6fe83 | 2757 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
3280af22 | 2758 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 LW |
2759 | magicname("0", "0", 1); |
2760 | } | |
85e6fe83 | 2761 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
ed344e4f IZ |
2762 | #ifdef OS2 |
2763 | sv_setpv(GvSV(tmpgv), os2_execname()); | |
2764 | #else | |
3280af22 | 2765 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); |
ed344e4f | 2766 | #endif |
3280af22 NIS |
2767 | if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
2768 | GvMULTI_on(PL_argvgv); | |
2769 | (void)gv_AVadd(PL_argvgv); | |
2770 | av_clear(GvAVn(PL_argvgv)); | |
79072805 | 2771 | for (; argc > 0; argc--,argv++) { |
3280af22 | 2772 | av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0)); |
79072805 | 2773 | } |
18708f5a | 2774 | PL_argvout_stack = newAV(); |
79072805 | 2775 | } |
3280af22 | 2776 | if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2777 | HV *hv; |
3280af22 NIS |
2778 | GvMULTI_on(PL_envgv); |
2779 | hv = GvHVn(PL_envgv); | |
2780 | hv_magic(hv, PL_envgv, 'E'); | |
4d2c4e07 | 2781 | #if !defined( VMS) && !defined(EPOC) /* VMS doesn't have environ array */ |
4633a7c4 LW |
2782 | /* Note that if the supplied env parameter is actually a copy |
2783 | of the global environ then it may now point to free'd memory | |
2784 | if the environment has been modified since. To avoid this | |
2785 | problem we treat env==NULL as meaning 'use the default' | |
2786 | */ | |
2787 | if (!env) | |
2788 | env = environ; | |
5aabfad6 | 2789 | if (env != environ) |
79072805 LW |
2790 | environ[0] = Nullch; |
2791 | for (; *env; env++) { | |
93a17b20 | 2792 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2793 | continue; |
2794 | *s++ = '\0'; | |
60ce6247 | 2795 | #if defined(MSDOS) |
137443ea | 2796 | (void)strupr(*env); |
2797 | #endif | |
79072805 LW |
2798 | sv = newSVpv(s--,0); |
2799 | (void)hv_store(hv, *env, s - *env, sv, 0); | |
2800 | *s = '='; | |
3e3baf6d TB |
2801 | #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV) |
2802 | /* Sins of the RTL. See note in my_setenv(). */ | |
76e3520e | 2803 | (void)PerlEnv_putenv(savepv(*env)); |
3e3baf6d | 2804 | #endif |
fe14fcc3 | 2805 | } |
4550b24a | 2806 | #endif |
2807 | #ifdef DYNAMIC_ENV_FETCH | |
2808 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2809 | #endif | |
79072805 | 2810 | } |
bbce6d69 | 2811 | TAINT_NOT; |
85e6fe83 | 2812 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 2813 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 | 2814 | } |
34de22dd | 2815 | |
76e3520e | 2816 | STATIC void |
cea2e8a9 | 2817 | S_init_perllib(pTHX) |
34de22dd | 2818 | { |
85e6fe83 | 2819 | char *s; |
3280af22 | 2820 | if (!PL_tainting) { |
552a7a9b | 2821 | #ifndef VMS |
76e3520e | 2822 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 | 2823 | if (s) |
774d564b | 2824 | incpush(s, TRUE); |
85e6fe83 | 2825 | else |
76e3520e | 2826 | incpush(PerlEnv_getenv("PERLLIB"), FALSE); |
552a7a9b | 2827 | #else /* VMS */ |
2828 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2829 | * "natural" VMS idiom for a Unix path string. We allow each | |
2830 | * element to be a set of |-separated directories for compatibility. | |
2831 | */ | |
2832 | char buf[256]; | |
2833 | int idx = 0; | |
2834 | if (my_trnlnm("PERL5LIB",buf,0)) | |
774d564b | 2835 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 2836 | else |
774d564b | 2837 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b | 2838 | #endif /* VMS */ |
85e6fe83 | 2839 | } |
34de22dd | 2840 | |
c90c0ff4 | 2841 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
dfe9444c | 2842 | ARCHLIB PRIVLIB SITEARCH and SITELIB |
df5cef82 | 2843 | */ |
4633a7c4 | 2844 | #ifdef APPLLIB_EXP |
43051805 | 2845 | incpush(APPLLIB_EXP, TRUE); |
16d20bd9 | 2846 | #endif |
4633a7c4 | 2847 | |
fed7345c | 2848 | #ifdef ARCHLIB_EXP |
774d564b | 2849 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e | 2850 | #endif |
fed7345c AD |
2851 | #ifndef PRIVLIB_EXP |
2852 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2853 | #endif |
00dc2f4f GS |
2854 | #if defined(WIN32) |
2855 | incpush(PRIVLIB_EXP, TRUE); | |
2856 | #else | |
774d564b | 2857 | incpush(PRIVLIB_EXP, FALSE); |
00dc2f4f | 2858 | #endif |
4633a7c4 LW |
2859 | |
2860 | #ifdef SITEARCH_EXP | |
774d564b | 2861 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 LW |
2862 | #endif |
2863 | #ifdef SITELIB_EXP | |
00dc2f4f GS |
2864 | #if defined(WIN32) |
2865 | incpush(SITELIB_EXP, TRUE); | |
2866 | #else | |
774d564b | 2867 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 | 2868 | #endif |
81c6dfba | 2869 | #endif |
a3635516 JH |
2870 | #if defined(PERL_VENDORLIB_EXP) |
2871 | #if defined(WIN32) | |
265f5c4a | 2872 | incpush(PERL_VENDORLIB_EXP, TRUE); |
a3635516 JH |
2873 | #else |
2874 | incpush(PERL_VENDORLIB_EXP, FALSE); | |
2875 | #endif | |
00dc2f4f | 2876 | #endif |
3280af22 | 2877 | if (!PL_tainting) |
774d564b | 2878 | incpush(".", FALSE); |
2879 | } | |
2880 | ||
2881 | #if defined(DOSISH) | |
2882 | # define PERLLIB_SEP ';' | |
2883 | #else | |
2884 | # if defined(VMS) | |
2885 | # define PERLLIB_SEP '|' | |
2886 | # else | |
2887 | # define PERLLIB_SEP ':' | |
2888 | # endif | |
2889 | #endif | |
2890 | #ifndef PERLLIB_MANGLE | |
2891 | # define PERLLIB_MANGLE(s,n) (s) | |
2892 | #endif | |
2893 | ||
76e3520e | 2894 | STATIC void |
cea2e8a9 | 2895 | S_incpush(pTHX_ char *p, int addsubdirs) |
774d564b | 2896 | { |
2897 | SV *subdir = Nullsv; | |
774d564b | 2898 | |
2899 | if (!p) | |
2900 | return; | |
2901 | ||
2902 | if (addsubdirs) { | |
00db4c45 | 2903 | subdir = sv_newmortal(); |
3280af22 NIS |
2904 | if (!PL_archpat_auto) { |
2905 | STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel) | |
774d564b | 2906 | + sizeof("//auto")); |
3280af22 NIS |
2907 | New(55, PL_archpat_auto, len, char); |
2908 | sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel); | |
aa689395 | 2909 | #ifdef VMS |
2910 | for (len = sizeof(ARCHNAME) + 2; | |
6b88bc9c GS |
2911 | PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++) |
2912 | if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_'; | |
aa689395 | 2913 | #endif |
774d564b | 2914 | } |
2915 | } | |
2916 | ||
2917 | /* Break at all separators */ | |
2918 | while (p && *p) { | |
8c52afec | 2919 | SV *libdir = NEWSV(55,0); |
774d564b | 2920 | char *s; |
2921 | ||
2922 | /* skip any consecutive separators */ | |
2923 | while ( *p == PERLLIB_SEP ) { | |
2924 | /* Uncomment the next line for PATH semantics */ | |
79cb57f6 | 2925 | /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */ |
774d564b | 2926 | p++; |
2927 | } | |
2928 | ||
2929 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { | |
2930 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), | |
2931 | (STRLEN)(s - p)); | |
2932 | p = s + 1; | |
2933 | } | |
2934 | else { | |
2935 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
2936 | p = Nullch; /* break out */ | |
2937 | } | |
2938 | ||
2939 | /* | |
2940 | * BEFORE pushing libdir onto @INC we may first push version- and | |
2941 | * archname-specific sub-directories. | |
2942 | */ | |
2943 | if (addsubdirs) { | |
2944 | struct stat tmpstatbuf; | |
aa689395 | 2945 | #ifdef VMS |
2946 | char *unix; | |
2947 | STRLEN len; | |
774d564b | 2948 | |
2d8e6c8d | 2949 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 | 2950 | len = strlen(unix); |
2951 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
2952 | sv_usepvn(libdir,unix,len); | |
2953 | } | |
2954 | else | |
bf49b057 | 2955 | PerlIO_printf(Perl_error_log, |
aa689395 | 2956 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 2957 | SvPV(libdir,len)); |
aa689395 | 2958 | #endif |
4fdae800 | 2959 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b | 2960 | sv_setsv(subdir, libdir); |
3280af22 | 2961 | sv_catpv(subdir, PL_archpat_auto); |
76e3520e | 2962 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b | 2963 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 | 2964 | av_push(GvAVn(PL_incgv), |
79cb57f6 | 2965 | newSVpvn(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
774d564b | 2966 | |
4fdae800 | 2967 | /* .../archname if -d .../archname/auto */ |
774d564b | 2968 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
3280af22 | 2969 | strlen(PL_patchlevel) + 1, "", 0); |
76e3520e | 2970 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b | 2971 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 | 2972 | av_push(GvAVn(PL_incgv), |
79cb57f6 | 2973 | newSVpvn(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
774d564b | 2974 | } |
2975 | ||
2976 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 2977 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 2978 | } |
34de22dd | 2979 | } |
93a17b20 | 2980 | |
199100c8 | 2981 | #ifdef USE_THREADS |
76e3520e | 2982 | STATIC struct perl_thread * |
cea2e8a9 | 2983 | S_init_main_thread(pTHX) |
199100c8 | 2984 | { |
c5be433b | 2985 | #if !defined(PERL_IMPLICIT_CONTEXT) |
52e1cb5e | 2986 | struct perl_thread *thr; |
cea2e8a9 | 2987 | #endif |
199100c8 MB |
2988 | XPV *xpv; |
2989 | ||
52e1cb5e | 2990 | Newz(53, thr, 1, struct perl_thread); |
533c011a | 2991 | PL_curcop = &PL_compiling; |
c5be433b | 2992 | thr->interp = PERL_GET_INTERP; |
199100c8 | 2993 | thr->cvcache = newHV(); |
54b9620d | 2994 | thr->threadsv = newAV(); |
940cb80d | 2995 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 MB |
2996 | thr->specific = newAV(); |
2997 | thr->flags = THRf_R_JOINABLE; | |
2998 | MUTEX_INIT(&thr->mutex); | |
2999 | /* Handcraft thrsv similarly to mess_sv */ | |
533c011a | 3000 | New(53, PL_thrsv, 1, SV); |
199100c8 | 3001 | Newz(53, xpv, 1, XPV); |
533c011a NIS |
3002 | SvFLAGS(PL_thrsv) = SVt_PV; |
3003 | SvANY(PL_thrsv) = (void*)xpv; | |
3004 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ | |
3005 | SvPVX(PL_thrsv) = (char*)thr; | |
3006 | SvCUR_set(PL_thrsv, sizeof(thr)); | |
3007 | SvLEN_set(PL_thrsv, sizeof(thr)); | |
3008 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ | |
3009 | thr->oursv = PL_thrsv; | |
3010 | PL_chopset = " \n-"; | |
3967c732 | 3011 | PL_dumpindent = 4; |
533c011a NIS |
3012 | |
3013 | MUTEX_LOCK(&PL_threads_mutex); | |
3014 | PL_nthreads++; | |
199100c8 MB |
3015 | thr->tid = 0; |
3016 | thr->next = thr; | |
3017 | thr->prev = thr; | |
533c011a | 3018 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 | 3019 | |
4b026b9e | 3020 | #ifdef HAVE_THREAD_INTERN |
4f63d024 | 3021 | Perl_init_thread_intern(thr); |
235db74f GS |
3022 | #endif |
3023 | ||
3024 | #ifdef SET_THREAD_SELF | |
3025 | SET_THREAD_SELF(thr); | |
199100c8 MB |
3026 | #else |
3027 | thr->self = pthread_self(); | |
235db74f | 3028 | #endif /* SET_THREAD_SELF */ |
199100c8 MB |
3029 | SET_THR(thr); |
3030 | ||
3031 | /* | |
3032 | * These must come after the SET_THR because sv_setpvn does | |
3033 | * SvTAINT and the taint fields require dTHR. | |
3034 | */ | |
533c011a NIS |
3035 | PL_toptarget = NEWSV(0,0); |
3036 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
3037 | sv_setpvn(PL_toptarget, "", 0); | |
3038 | PL_bodytarget = NEWSV(0,0); | |
3039 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
3040 | sv_setpvn(PL_bodytarget, "", 0); | |
3041 | PL_formtarget = PL_bodytarget; | |
79cb57f6 | 3042 | thr->errsv = newSVpvn("", 0); |
78857c3c | 3043 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 | 3044 | |
533c011a | 3045 | PL_maxscream = -1; |
0b94c7bb GS |
3046 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
3047 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); | |
3048 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); | |
3049 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); | |
3050 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); | |
533c011a NIS |
3051 | PL_regindent = 0; |
3052 | PL_reginterp_cnt = 0; | |
5c0ca799 | 3053 | |
199100c8 MB |
3054 | return thr; |
3055 | } | |
3056 | #endif /* USE_THREADS */ | |
3057 | ||
93a17b20 | 3058 | void |
864dbfa3 | 3059 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 3060 | { |
11343788 | 3061 | dTHR; |
312caa8e | 3062 | SV *atsv = ERRSV; |
3280af22 | 3063 | line_t oldline = PL_curcop->cop_line; |
312caa8e | 3064 | CV *cv; |
22921e25 | 3065 | STRLEN len; |
6224f72b | 3066 | int ret; |
db36c5a1 | 3067 | dJMPENV; |
93a17b20 | 3068 | |
76e3520e | 3069 | while (AvFILL(paramList) >= 0) { |
312caa8e | 3070 | cv = (CV*)av_shift(paramList); |
8990e307 | 3071 | SAVEFREESV(cv); |
db36c5a1 | 3072 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_call_list_body), cv); |
6224f72b | 3073 | switch (ret) { |
312caa8e CS |
3074 | case 0: |
3075 | (void)SvPV(atsv, len); | |
3076 | if (len) { | |
3077 | PL_curcop = &PL_compiling; | |
3078 | PL_curcop->cop_line = oldline; | |
3079 | if (paramList == PL_beginav) | |
3080 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
3081 | else | |
4f25aa18 GS |
3082 | Perl_sv_catpvf(aTHX_ atsv, |
3083 | "%s failed--call queue aborted", | |
3084 | paramList == PL_stopav ? "STOP" | |
3085 | : paramList == PL_initav ? "INIT" | |
3086 | : "END"); | |
312caa8e CS |
3087 | while (PL_scopestack_ix > oldscope) |
3088 | LEAVE; | |
cea2e8a9 | 3089 | Perl_croak(aTHX_ "%s", SvPVX(atsv)); |
a0d0e21e | 3090 | } |
85e6fe83 | 3091 | break; |
6224f72b | 3092 | case 1: |
f86702cc | 3093 | STATUS_ALL_FAILURE; |
85e6fe83 | 3094 | /* FALL THROUGH */ |
6224f72b | 3095 | case 2: |
85e6fe83 | 3096 | /* my_exit() was called */ |
3280af22 | 3097 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 3098 | LEAVE; |
84902520 | 3099 | FREETMPS; |
3280af22 | 3100 | PL_curstash = PL_defstash; |
3280af22 NIS |
3101 | PL_curcop = &PL_compiling; |
3102 | PL_curcop->cop_line = oldline; | |
3103 | if (PL_statusvalue) { | |
3104 | if (paramList == PL_beginav) | |
cea2e8a9 | 3105 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 3106 | else |
4f25aa18 GS |
3107 | Perl_croak(aTHX_ "%s failed--call queue aborted", |
3108 | paramList == PL_stopav ? "STOP" | |
3109 | : paramList == PL_initav ? "INIT" | |
3110 | : "END"); | |
85e6fe83 | 3111 | } |
f86702cc | 3112 | my_exit_jump(); |
85e6fe83 | 3113 | /* NOTREACHED */ |
6224f72b | 3114 | case 3: |
312caa8e CS |
3115 | if (PL_restartop) { |
3116 | PL_curcop = &PL_compiling; | |
3117 | PL_curcop->cop_line = oldline; | |
3118 | JMPENV_JUMP(3); | |
85e6fe83 | 3119 | } |
bf49b057 | 3120 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
3121 | FREETMPS; |
3122 | break; | |
8990e307 | 3123 | } |
93a17b20 | 3124 | } |
93a17b20 | 3125 | } |
93a17b20 | 3126 | |
312caa8e | 3127 | STATIC void * |
cea2e8a9 | 3128 | S_call_list_body(pTHX_ va_list args) |
312caa8e CS |
3129 | { |
3130 | dTHR; | |
3131 | CV *cv = va_arg(args, CV*); | |
3132 | ||
3133 | PUSHMARK(PL_stack_sp); | |
864dbfa3 | 3134 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e CS |
3135 | return NULL; |
3136 | } | |
3137 | ||
f86702cc | 3138 | void |
864dbfa3 | 3139 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 3140 | { |
5dc0d613 MB |
3141 | dTHR; |
3142 | ||
8b73bbec | 3143 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 3144 | thr, (unsigned long) status)); |
f86702cc | 3145 | switch (status) { |
3146 | case 0: | |
3147 | STATUS_ALL_SUCCESS; | |
3148 | break; | |
3149 | case 1: | |
3150 | STATUS_ALL_FAILURE; | |
3151 | break; | |
3152 | default: | |
3153 | STATUS_NATIVE_SET(status); | |
3154 | break; | |
3155 | } | |
3156 | my_exit_jump(); | |
3157 | } | |
3158 | ||
3159 | void | |
864dbfa3 | 3160 | Perl_my_failure_exit(pTHX) |
f86702cc | 3161 | { |
3162 | #ifdef VMS | |
3163 | if (vaxc$errno & 1) { | |
4fdae800 | 3164 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
3165 | STATUS_NATIVE_SET(44); | |
f86702cc | 3166 | } |
3167 | else { | |
ff0cee69 | 3168 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 | 3169 | STATUS_NATIVE_SET(44); |
f86702cc | 3170 | else |
4fdae800 | 3171 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 3172 | } |
3173 | #else | |
9b599b2a | 3174 | int exitstatus; |
f86702cc | 3175 | if (errno & 255) |
3176 | STATUS_POSIX_SET(errno); | |
9b599b2a GS |
3177 | else { |
3178 | exitstatus = STATUS_POSIX >> 8; | |
3179 | if (exitstatus & 255) | |
3180 | STATUS_POSIX_SET(exitstatus); | |
3181 | else | |
3182 | STATUS_POSIX_SET(255); | |
3183 | } | |
f86702cc | 3184 | #endif |
3185 | my_exit_jump(); | |
93a17b20 LW |
3186 | } |
3187 | ||
76e3520e | 3188 | STATIC void |
cea2e8a9 | 3189 | S_my_exit_jump(pTHX) |
f86702cc | 3190 | { |
de616352 | 3191 | dTHR; |
c09156bb | 3192 | register PERL_CONTEXT *cx; |
f86702cc | 3193 | I32 gimme; |
3194 | SV **newsp; | |
3195 | ||
3280af22 NIS |
3196 | if (PL_e_script) { |
3197 | SvREFCNT_dec(PL_e_script); | |
3198 | PL_e_script = Nullsv; | |
f86702cc | 3199 | } |
3200 | ||
3280af22 | 3201 | POPSTACK_TO(PL_mainstack); |
f86702cc | 3202 | if (cxstack_ix >= 0) { |
3203 | if (cxstack_ix > 0) | |
3204 | dounwind(0); | |
3280af22 | 3205 | POPBLOCK(cx,PL_curpm); |
f86702cc | 3206 | LEAVE; |
3207 | } | |
ff0cee69 | 3208 | |
6224f72b | 3209 | JMPENV_JUMP(2); |
f86702cc | 3210 | } |
873ef191 | 3211 | |
7a5f8e82 | 3212 | #ifdef PERL_OBJECT |
873ef191 | 3213 | #include "XSUB.h" |
51371543 | 3214 | #endif |
873ef191 | 3215 | |
0cb96387 GS |
3216 | static I32 |
3217 | read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen) | |
873ef191 GS |
3218 | { |
3219 | char *p, *nl; | |
3280af22 | 3220 | p = SvPVX(PL_e_script); |
873ef191 | 3221 | nl = strchr(p, '\n'); |
3280af22 | 3222 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 3223 | if (nl-p == 0) { |
0cb96387 | 3224 | filter_del(read_e_script); |
873ef191 | 3225 | return 0; |
7dfe3f66 | 3226 | } |
873ef191 | 3227 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 3228 | sv_chop(PL_e_script, nl); |
873ef191 GS |
3229 | return 1; |
3230 | } | |
3231 |