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); | |
436 | SvREFCNT_dec(PL_initav); | |
437 | PL_beginav = Nullav; | |
438 | PL_endav = Nullav; | |
439 | PL_initav = Nullav; | |
5618dfe8 | 440 | |
8ebc5c01 | 441 | /* shortcuts just get cleared */ |
3280af22 | 442 | PL_envgv = Nullgv; |
3280af22 NIS |
443 | PL_incgv = Nullgv; |
444 | PL_hintgv = Nullgv; | |
445 | PL_errgv = Nullgv; | |
446 | PL_argvgv = Nullgv; | |
447 | PL_argvoutgv = Nullgv; | |
448 | PL_stdingv = Nullgv; | |
bf49b057 | 449 | PL_stderrgv = Nullgv; |
3280af22 NIS |
450 | PL_last_in_gv = Nullgv; |
451 | PL_replgv = Nullgv; | |
8ebc5c01 | 452 | |
453 | /* reset so print() ends up where we expect */ | |
454 | setdefout(Nullgv); | |
455 | ||
a0d0e21e | 456 | /* Prepare to destruct main symbol table. */ |
5f05dabc | 457 | |
3280af22 NIS |
458 | hv = PL_defstash; |
459 | PL_defstash = 0; | |
a0d0e21e LW |
460 | SvREFCNT_dec(hv); |
461 | ||
5a844595 GS |
462 | /* clear queued errors */ |
463 | SvREFCNT_dec(PL_errors); | |
464 | PL_errors = Nullsv; | |
465 | ||
a0d0e21e | 466 | FREETMPS; |
0453d815 | 467 | if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) { |
3280af22 | 468 | if (PL_scopestack_ix != 0) |
0453d815 PM |
469 | Perl_warner(aTHX_ WARN_INTERNAL, |
470 | "Unbalanced scopes: %ld more ENTERs than LEAVEs\n", | |
3280af22 NIS |
471 | (long)PL_scopestack_ix); |
472 | if (PL_savestack_ix != 0) | |
0453d815 PM |
473 | Perl_warner(aTHX_ WARN_INTERNAL, |
474 | "Unbalanced saves: %ld more saves than restores\n", | |
3280af22 NIS |
475 | (long)PL_savestack_ix); |
476 | if (PL_tmps_floor != -1) | |
0453d815 | 477 | Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced tmps: %ld more allocs than frees\n", |
3280af22 | 478 | (long)PL_tmps_floor + 1); |
a0d0e21e | 479 | if (cxstack_ix != -1) |
0453d815 | 480 | Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced context: %ld more PUSHes than POPs\n", |
ff0cee69 | 481 | (long)cxstack_ix + 1); |
a0d0e21e | 482 | } |
8990e307 LW |
483 | |
484 | /* Now absolutely destruct everything, somehow or other, loops or no. */ | |
8990e307 | 485 | last_sv_count = 0; |
3280af22 NIS |
486 | SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */ |
487 | while (PL_sv_count != 0 && PL_sv_count != last_sv_count) { | |
488 | last_sv_count = PL_sv_count; | |
8990e307 LW |
489 | sv_clean_all(); |
490 | } | |
3280af22 NIS |
491 | SvFLAGS(PL_strtab) &= ~SVTYPEMASK; |
492 | SvFLAGS(PL_strtab) |= SVt_PVHV; | |
6e72f9df | 493 | |
494 | /* Destruct the global string table. */ | |
495 | { | |
496 | /* Yell and reset the HeVAL() slots that are still holding refcounts, | |
497 | * so that sv_free() won't fail on them. | |
498 | */ | |
499 | I32 riter; | |
500 | I32 max; | |
501 | HE *hent; | |
502 | HE **array; | |
503 | ||
504 | riter = 0; | |
3280af22 NIS |
505 | max = HvMAX(PL_strtab); |
506 | array = HvARRAY(PL_strtab); | |
6e72f9df | 507 | hent = array[0]; |
508 | for (;;) { | |
0453d815 PM |
509 | if (hent && ckWARN_d(WARN_INTERNAL)) { |
510 | Perl_warner(aTHX_ WARN_INTERNAL, | |
511 | "Unbalanced string table refcount: (%d) for \"%s\"", | |
6e72f9df | 512 | HeVAL(hent) - Nullsv, HeKEY(hent)); |
513 | HeVAL(hent) = Nullsv; | |
514 | hent = HeNEXT(hent); | |
515 | } | |
516 | if (!hent) { | |
517 | if (++riter > max) | |
518 | break; | |
519 | hent = array[riter]; | |
520 | } | |
521 | } | |
522 | } | |
3280af22 | 523 | SvREFCNT_dec(PL_strtab); |
6e72f9df | 524 | |
0453d815 PM |
525 | if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL)) |
526 | Perl_warner(aTHX_ WARN_INTERNAL,"Scalars leaked: %ld\n", (long)PL_sv_count); | |
6e72f9df | 527 | |
4633a7c4 | 528 | sv_free_arenas(); |
44a8e56a | 529 | |
530 | /* No SVs have survived, need to clean out */ | |
3280af22 NIS |
531 | PL_linestr = NULL; |
532 | PL_pidstatus = Nullhv; | |
533 | Safefree(PL_origfilename); | |
534 | Safefree(PL_archpat_auto); | |
535 | Safefree(PL_reg_start_tmp); | |
5c5e4c24 IZ |
536 | if (PL_reg_curpm) |
537 | Safefree(PL_reg_curpm); | |
82ba1be6 | 538 | Safefree(PL_reg_poscache); |
3280af22 NIS |
539 | Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh)); |
540 | Safefree(PL_op_mask); | |
6e72f9df | 541 | nuke_stacks(); |
3280af22 | 542 | PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */ |
a0d0e21e LW |
543 | |
544 | DEBUG_P(debprofdump()); | |
11343788 | 545 | #ifdef USE_THREADS |
5f08fbcd | 546 | MUTEX_DESTROY(&PL_strtab_mutex); |
533c011a NIS |
547 | MUTEX_DESTROY(&PL_sv_mutex); |
548 | MUTEX_DESTROY(&PL_eval_mutex); | |
5ff3f7a4 | 549 | MUTEX_DESTROY(&PL_cred_mutex); |
533c011a | 550 | COND_DESTROY(&PL_eval_cond); |
11d617a5 GS |
551 | #ifdef EMULATE_ATOMIC_REFCOUNTS |
552 | MUTEX_DESTROY(&PL_svref_mutex); | |
553 | #endif /* EMULATE_ATOMIC_REFCOUNTS */ | |
fc36a67e | 554 | |
8023c3ce | 555 | /* As the penultimate thing, free the non-arena SV for thrsv */ |
533c011a NIS |
556 | Safefree(SvPVX(PL_thrsv)); |
557 | Safefree(SvANY(PL_thrsv)); | |
558 | Safefree(PL_thrsv); | |
559 | PL_thrsv = Nullsv; | |
8023c3ce MB |
560 | #endif /* USE_THREADS */ |
561 | ||
fc36a67e | 562 | /* As the absolutely last thing, free the non-arena SV for mess() */ |
563 | ||
3280af22 | 564 | if (PL_mess_sv) { |
9c63abab GS |
565 | /* it could have accumulated taint magic */ |
566 | if (SvTYPE(PL_mess_sv) >= SVt_PVMG) { | |
567 | MAGIC* mg; | |
568 | MAGIC* moremagic; | |
569 | for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) { | |
570 | moremagic = mg->mg_moremagic; | |
571 | if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0) | |
572 | Safefree(mg->mg_ptr); | |
573 | Safefree(mg); | |
574 | } | |
575 | } | |
fc36a67e | 576 | /* we know that type >= SVt_PV */ |
3280af22 NIS |
577 | SvOOK_off(PL_mess_sv); |
578 | Safefree(SvPVX(PL_mess_sv)); | |
579 | Safefree(SvANY(PL_mess_sv)); | |
580 | Safefree(PL_mess_sv); | |
581 | PL_mess_sv = Nullsv; | |
fc36a67e | 582 | } |
79072805 LW |
583 | } |
584 | ||
585 | void | |
0cb96387 | 586 | perl_free(pTHXx) |
79072805 | 587 | { |
c5be433b | 588 | #if defined(PERL_OBJECT) |
7f0d82f7 | 589 | PerlMem_free(this); |
76e3520e | 590 | #else |
7f0d82f7 | 591 | PerlMem_free(aTHXx); |
76e3520e | 592 | #endif |
79072805 LW |
593 | } |
594 | ||
4b556e6c | 595 | void |
864dbfa3 | 596 | Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr) |
4b556e6c | 597 | { |
3280af22 NIS |
598 | Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry); |
599 | PL_exitlist[PL_exitlistlen].fn = fn; | |
600 | PL_exitlist[PL_exitlistlen].ptr = ptr; | |
601 | ++PL_exitlistlen; | |
4b556e6c JD |
602 | } |
603 | ||
79072805 | 604 | int |
0cb96387 | 605 | perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env) |
8d063cd8 | 606 | { |
11343788 | 607 | dTHR; |
6224f72b | 608 | I32 oldscope; |
6224f72b | 609 | int ret; |
db36c5a1 | 610 | dJMPENV; |
cea2e8a9 GS |
611 | #ifdef USE_THREADS |
612 | dTHX; | |
613 | #endif | |
8d063cd8 | 614 | |
a687059c LW |
615 | #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW |
616 | #ifdef IAMSUID | |
617 | #undef IAMSUID | |
cea2e8a9 | 618 | Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\ |
a687059c LW |
619 | setuid perl scripts securely.\n"); |
620 | #endif | |
621 | #endif | |
622 | ||
8f1f23e8 | 623 | #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__)) |
6e72f9df | 624 | _dyld_lookup_and_bind |
625 | ("__environ", (unsigned long *) &environ_pointer, NULL); | |
626 | #endif /* environ */ | |
627 | ||
3280af22 NIS |
628 | PL_origargv = argv; |
629 | PL_origargc = argc; | |
a0d0e21e | 630 | #ifndef VMS /* VMS doesn't have environ array */ |
3280af22 | 631 | PL_origenviron = environ; |
a0d0e21e LW |
632 | #endif |
633 | ||
3280af22 | 634 | if (PL_do_undump) { |
a0d0e21e LW |
635 | |
636 | /* Come here if running an undumped a.out. */ | |
637 | ||
3280af22 NIS |
638 | PL_origfilename = savepv(argv[0]); |
639 | PL_do_undump = FALSE; | |
a0d0e21e | 640 | cxstack_ix = -1; /* start label stack again */ |
748a9306 | 641 | init_ids(); |
a0d0e21e LW |
642 | init_postdump_symbols(argc,argv,env); |
643 | return 0; | |
644 | } | |
645 | ||
3280af22 NIS |
646 | if (PL_main_root) { |
647 | PL_curpad = AvARRAY(PL_comppad); | |
648 | op_free(PL_main_root); | |
649 | PL_main_root = Nullop; | |
ff0cee69 | 650 | } |
3280af22 NIS |
651 | PL_main_start = Nullop; |
652 | SvREFCNT_dec(PL_main_cv); | |
653 | PL_main_cv = Nullcv; | |
79072805 | 654 | |
3280af22 NIS |
655 | time(&PL_basetime); |
656 | oldscope = PL_scopestack_ix; | |
599cee73 | 657 | PL_dowarn = G_WARN_OFF; |
f86702cc | 658 | |
db36c5a1 GS |
659 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_parse_body), |
660 | env, xsinit); | |
6224f72b | 661 | switch (ret) { |
312caa8e CS |
662 | case 0: |
663 | return 0; | |
6224f72b GS |
664 | case 1: |
665 | STATUS_ALL_FAILURE; | |
666 | /* FALL THROUGH */ | |
667 | case 2: | |
668 | /* my_exit() was called */ | |
3280af22 | 669 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
670 | LEAVE; |
671 | FREETMPS; | |
3280af22 | 672 | PL_curstash = PL_defstash; |
865be832 | 673 | if (PL_endav && !PL_minus_c) |
3280af22 | 674 | call_list(oldscope, PL_endav); |
6224f72b GS |
675 | return STATUS_NATIVE_EXPORT; |
676 | case 3: | |
bf49b057 | 677 | PerlIO_printf(Perl_error_log, "panic: top_env\n"); |
6224f72b GS |
678 | return 1; |
679 | } | |
a6c40364 | 680 | return 0; |
312caa8e CS |
681 | } |
682 | ||
683 | STATIC void * | |
cea2e8a9 | 684 | S_parse_body(pTHX_ va_list args) |
312caa8e CS |
685 | { |
686 | dTHR; | |
687 | int argc = PL_origargc; | |
688 | char **argv = PL_origargv; | |
689 | char **env = va_arg(args, char**); | |
690 | char *scriptname = NULL; | |
691 | int fdscript = -1; | |
692 | VOL bool dosearch = FALSE; | |
693 | char *validarg = ""; | |
694 | AV* comppadlist; | |
695 | register SV *sv; | |
696 | register char *s; | |
f4c556ac | 697 | char *cddir = Nullch; |
312caa8e | 698 | |
864dbfa3 | 699 | XSINIT_t xsinit = va_arg(args, XSINIT_t); |
79072805 | 700 | |
3280af22 | 701 | sv_setpvn(PL_linestr,"",0); |
79cb57f6 | 702 | sv = newSVpvn("",0); /* first used for -I flags */ |
6224f72b GS |
703 | SAVEFREESV(sv); |
704 | init_main_stash(); | |
54310121 | 705 | |
6224f72b GS |
706 | for (argc--,argv++; argc > 0; argc--,argv++) { |
707 | if (argv[0][0] != '-' || !argv[0][1]) | |
708 | break; | |
709 | #ifdef DOSUID | |
710 | if (*validarg) | |
711 | validarg = " PHOOEY "; | |
712 | else | |
713 | validarg = argv[0]; | |
13281fa4 | 714 | #endif |
6224f72b GS |
715 | s = argv[0]+1; |
716 | reswitch: | |
717 | switch (*s) { | |
1d5472a9 GS |
718 | #ifndef PERL_STRICT_CR |
719 | case '\r': | |
720 | #endif | |
6224f72b GS |
721 | case ' ': |
722 | case '0': | |
723 | case 'F': | |
724 | case 'a': | |
725 | case 'c': | |
726 | case 'd': | |
727 | case 'D': | |
728 | case 'h': | |
729 | case 'i': | |
730 | case 'l': | |
731 | case 'M': | |
732 | case 'm': | |
733 | case 'n': | |
734 | case 'p': | |
735 | case 's': | |
736 | case 'u': | |
737 | case 'U': | |
738 | case 'v': | |
599cee73 PM |
739 | case 'W': |
740 | case 'X': | |
6224f72b GS |
741 | case 'w': |
742 | if (s = moreswitches(s)) | |
743 | goto reswitch; | |
744 | break; | |
33b78306 | 745 | |
6224f72b | 746 | case 'T': |
3280af22 | 747 | PL_tainting = TRUE; |
6224f72b GS |
748 | s++; |
749 | goto reswitch; | |
f86702cc | 750 | |
6224f72b | 751 | case 'e': |
3280af22 | 752 | if (PL_euid != PL_uid || PL_egid != PL_gid) |
cea2e8a9 | 753 | Perl_croak(aTHX_ "No -e allowed in setuid scripts"); |
3280af22 | 754 | if (!PL_e_script) { |
79cb57f6 | 755 | PL_e_script = newSVpvn("",0); |
0cb96387 | 756 | filter_add(read_e_script, NULL); |
6224f72b GS |
757 | } |
758 | if (*++s) | |
3280af22 | 759 | sv_catpv(PL_e_script, s); |
6224f72b | 760 | else if (argv[1]) { |
3280af22 | 761 | sv_catpv(PL_e_script, argv[1]); |
6224f72b GS |
762 | argc--,argv++; |
763 | } | |
764 | else | |
cea2e8a9 | 765 | Perl_croak(aTHX_ "No code specified for -e"); |
3280af22 | 766 | sv_catpv(PL_e_script, "\n"); |
6224f72b | 767 | break; |
afe37c7d | 768 | |
6224f72b GS |
769 | case 'I': /* -I handled both here and in moreswitches() */ |
770 | forbid_setid("-I"); | |
771 | if (!*++s && (s=argv[1]) != Nullch) { | |
772 | argc--,argv++; | |
773 | } | |
774 | while (s && isSPACE(*s)) | |
775 | ++s; | |
776 | if (s && *s) { | |
777 | char *e, *p; | |
778 | for (e = s; *e && !isSPACE(*e); e++) ; | |
779 | p = savepvn(s, e-s); | |
780 | incpush(p, TRUE); | |
781 | sv_catpv(sv,"-I"); | |
782 | sv_catpv(sv,p); | |
783 | sv_catpv(sv," "); | |
784 | Safefree(p); | |
785 | } /* XXX else croak? */ | |
786 | break; | |
787 | case 'P': | |
788 | forbid_setid("-P"); | |
3280af22 | 789 | PL_preprocess = TRUE; |
6224f72b GS |
790 | s++; |
791 | goto reswitch; | |
792 | case 'S': | |
793 | forbid_setid("-S"); | |
794 | dosearch = TRUE; | |
795 | s++; | |
796 | goto reswitch; | |
797 | case 'V': | |
3280af22 NIS |
798 | if (!PL_preambleav) |
799 | PL_preambleav = newAV(); | |
800 | av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0)); | |
6224f72b | 801 | if (*++s != ':') { |
3280af22 | 802 | PL_Sv = newSVpv("print myconfig();",0); |
6224f72b | 803 | #ifdef VMS |
6b88bc9c | 804 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\","); |
6224f72b | 805 | #else |
3280af22 | 806 | sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\","); |
6224f72b | 807 | #endif |
3280af22 | 808 | sv_catpv(PL_Sv,"\" Compile-time options:"); |
6224f72b | 809 | # ifdef DEBUGGING |
3280af22 | 810 | sv_catpv(PL_Sv," DEBUGGING"); |
6224f72b | 811 | # endif |
6224f72b | 812 | # ifdef MULTIPLICITY |
8f872242 | 813 | sv_catpv(PL_Sv," MULTIPLICITY"); |
6224f72b | 814 | # endif |
b363f7ed GS |
815 | # ifdef USE_THREADS |
816 | sv_catpv(PL_Sv," USE_THREADS"); | |
817 | # endif | |
818 | # ifdef PERL_OBJECT | |
819 | sv_catpv(PL_Sv," PERL_OBJECT"); | |
820 | # endif | |
821 | # ifdef PERL_IMPLICIT_CONTEXT | |
822 | sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT"); | |
823 | # endif | |
824 | # ifdef PERL_IMPLICIT_SYS | |
825 | sv_catpv(PL_Sv," PERL_IMPLICIT_SYS"); | |
826 | # endif | |
3280af22 | 827 | sv_catpv(PL_Sv,"\\n\","); |
b363f7ed | 828 | |
6224f72b GS |
829 | #if defined(LOCAL_PATCH_COUNT) |
830 | if (LOCAL_PATCH_COUNT > 0) { | |
831 | int i; | |
3280af22 | 832 | sv_catpv(PL_Sv,"\" Locally applied patches:\\n\","); |
6224f72b | 833 | for (i = 1; i <= LOCAL_PATCH_COUNT; i++) { |
3280af22 | 834 | if (PL_localpatches[i]) |
cea2e8a9 | 835 | Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]); |
6224f72b GS |
836 | } |
837 | } | |
838 | #endif | |
cea2e8a9 | 839 | Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME); |
6224f72b GS |
840 | #ifdef __DATE__ |
841 | # ifdef __TIME__ | |
cea2e8a9 | 842 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__); |
6224f72b | 843 | # else |
cea2e8a9 | 844 | Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__); |
6224f72b GS |
845 | # endif |
846 | #endif | |
3280af22 | 847 | sv_catpv(PL_Sv, "; \ |
6224f72b GS |
848 | $\"=\"\\n \"; \ |
849 | @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \ | |
850 | print \" \\%ENV:\\n @env\\n\" if @env; \ | |
851 | print \" \\@INC:\\n @INC\\n\";"); | |
852 | } | |
853 | else { | |
3280af22 NIS |
854 | PL_Sv = newSVpv("config_vars(qw(",0); |
855 | sv_catpv(PL_Sv, ++s); | |
856 | sv_catpv(PL_Sv, "))"); | |
6224f72b GS |
857 | s += strlen(s); |
858 | } | |
3280af22 | 859 | av_push(PL_preambleav, PL_Sv); |
6224f72b GS |
860 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ |
861 | goto reswitch; | |
862 | case 'x': | |
3280af22 | 863 | PL_doextract = TRUE; |
6224f72b GS |
864 | s++; |
865 | if (*s) | |
f4c556ac | 866 | cddir = s; |
6224f72b GS |
867 | break; |
868 | case 0: | |
869 | break; | |
870 | case '-': | |
871 | if (!*++s || isSPACE(*s)) { | |
872 | argc--,argv++; | |
873 | goto switch_end; | |
874 | } | |
875 | /* catch use of gnu style long options */ | |
876 | if (strEQ(s, "version")) { | |
877 | s = "v"; | |
878 | goto reswitch; | |
879 | } | |
880 | if (strEQ(s, "help")) { | |
881 | s = "h"; | |
882 | goto reswitch; | |
883 | } | |
884 | s--; | |
885 | /* FALL THROUGH */ | |
886 | default: | |
cea2e8a9 | 887 | Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s); |
8d063cd8 LW |
888 | } |
889 | } | |
6224f72b | 890 | switch_end: |
54310121 | 891 | |
f675dbe5 CB |
892 | if ( |
893 | #ifndef SECURE_INTERNAL_GETENV | |
894 | !PL_tainting && | |
895 | #endif | |
896 | (s = PerlEnv_getenv("PERL5OPT"))) { | |
74288ac8 GS |
897 | while (isSPACE(*s)) |
898 | s++; | |
899 | if (*s == '-' && *(s+1) == 'T') | |
900 | PL_tainting = TRUE; | |
901 | else { | |
902 | while (s && *s) { | |
903 | while (isSPACE(*s)) | |
904 | s++; | |
905 | if (*s == '-') { | |
906 | s++; | |
907 | if (isSPACE(*s)) | |
908 | continue; | |
909 | } | |
910 | if (!*s) | |
911 | break; | |
912 | if (!strchr("DIMUdmw", *s)) | |
cea2e8a9 | 913 | Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s); |
74288ac8 | 914 | s = moreswitches(s); |
6224f72b | 915 | } |
6224f72b GS |
916 | } |
917 | } | |
a0d0e21e | 918 | |
6224f72b GS |
919 | if (!scriptname) |
920 | scriptname = argv[0]; | |
3280af22 | 921 | if (PL_e_script) { |
6224f72b GS |
922 | argc++,argv--; |
923 | scriptname = BIT_BUCKET; /* don't look for script or read stdin */ | |
924 | } | |
925 | else if (scriptname == Nullch) { | |
926 | #ifdef MSDOS | |
927 | if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) ) | |
928 | moreswitches("h"); | |
929 | #endif | |
930 | scriptname = "-"; | |
931 | } | |
932 | ||
933 | init_perllib(); | |
934 | ||
935 | open_script(scriptname,dosearch,sv,&fdscript); | |
936 | ||
937 | validate_suid(validarg, scriptname,fdscript); | |
938 | ||
0b5b802d GS |
939 | #if defined(SIGCHLD) || defined(SIGCLD) |
940 | { | |
941 | #ifndef SIGCHLD | |
942 | # define SIGCHLD SIGCLD | |
943 | #endif | |
944 | Sighandler_t sigstate = rsignal_state(SIGCHLD); | |
945 | if (sigstate == SIG_IGN) { | |
946 | if (ckWARN(WARN_SIGNAL)) | |
947 | Perl_warner(aTHX_ WARN_SIGNAL, | |
948 | "Can't ignore signal CHLD, forcing to default"); | |
949 | (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL); | |
950 | } | |
951 | } | |
952 | #endif | |
953 | ||
f4c556ac | 954 | if (PL_doextract) { |
6224f72b | 955 | find_beginning(); |
f4c556ac GS |
956 | if (cddir && PerlDir_chdir(cddir) < 0) |
957 | Perl_croak(aTHX_ "Can't chdir to %s",cddir); | |
958 | ||
959 | } | |
6224f72b | 960 | |
3280af22 NIS |
961 | PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0); |
962 | sv_upgrade((SV *)PL_compcv, SVt_PVCV); | |
963 | CvUNIQUE_on(PL_compcv); | |
964 | ||
965 | PL_comppad = newAV(); | |
966 | av_push(PL_comppad, Nullsv); | |
967 | PL_curpad = AvARRAY(PL_comppad); | |
968 | PL_comppad_name = newAV(); | |
969 | PL_comppad_name_fill = 0; | |
970 | PL_min_intro_pending = 0; | |
971 | PL_padix = 0; | |
6224f72b | 972 | #ifdef USE_THREADS |
79cb57f6 | 973 | av_store(PL_comppad_name, 0, newSVpvn("@_", 2)); |
533c011a NIS |
974 | PL_curpad[0] = (SV*)newAV(); |
975 | SvPADMY_on(PL_curpad[0]); /* XXX Needed? */ | |
976 | CvOWNER(PL_compcv) = 0; | |
977 | New(666, CvMUTEXP(PL_compcv), 1, perl_mutex); | |
978 | MUTEX_INIT(CvMUTEXP(PL_compcv)); | |
6224f72b GS |
979 | #endif /* USE_THREADS */ |
980 | ||
981 | comppadlist = newAV(); | |
982 | AvREAL_off(comppadlist); | |
3280af22 NIS |
983 | av_store(comppadlist, 0, (SV*)PL_comppad_name); |
984 | av_store(comppadlist, 1, (SV*)PL_comppad); | |
985 | CvPADLIST(PL_compcv) = comppadlist; | |
6224f72b GS |
986 | |
987 | boot_core_UNIVERSAL(); | |
09bef843 | 988 | boot_core_xsutils(); |
6224f72b GS |
989 | |
990 | if (xsinit) | |
0cb96387 | 991 | (*xsinit)(aTHXo); /* in case linked C routines want magical variables */ |
6224f72b | 992 | #if defined(VMS) || defined(WIN32) || defined(DJGPP) |
c5be433b | 993 | init_os_extras(); |
6224f72b GS |
994 | #endif |
995 | ||
29209bc5 JH |
996 | #ifdef USE_SOCKS |
997 | SOCKSinit(argv[0]); | |
998 | #endif | |
999 | ||
6224f72b GS |
1000 | init_predump_symbols(); |
1001 | /* init_postdump_symbols not currently designed to be called */ | |
1002 | /* more than once (ENV isn't cleared first, for example) */ | |
1003 | /* But running with -u leaves %ENV & @ARGV undefined! XXX */ | |
3280af22 | 1004 | if (!PL_do_undump) |
6224f72b GS |
1005 | init_postdump_symbols(argc,argv,env); |
1006 | ||
1007 | init_lexer(); | |
1008 | ||
1009 | /* now parse the script */ | |
1010 | ||
1011 | SETERRNO(0,SS$_NORMAL); | |
3280af22 NIS |
1012 | PL_error_count = 0; |
1013 | if (yyparse() || PL_error_count) { | |
1014 | if (PL_minus_c) | |
cea2e8a9 | 1015 | Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename); |
6224f72b | 1016 | else { |
cea2e8a9 | 1017 | Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n", |
097ee67d | 1018 | PL_origfilename); |
6224f72b GS |
1019 | } |
1020 | } | |
3280af22 NIS |
1021 | PL_curcop->cop_line = 0; |
1022 | PL_curstash = PL_defstash; | |
1023 | PL_preprocess = FALSE; | |
1024 | if (PL_e_script) { | |
1025 | SvREFCNT_dec(PL_e_script); | |
1026 | PL_e_script = Nullsv; | |
6224f72b GS |
1027 | } |
1028 | ||
1029 | /* now that script is parsed, we can modify record separator */ | |
3280af22 NIS |
1030 | SvREFCNT_dec(PL_rs); |
1031 | PL_rs = SvREFCNT_inc(PL_nrs); | |
864dbfa3 | 1032 | sv_setsv(get_sv("/", TRUE), PL_rs); |
3280af22 | 1033 | if (PL_do_undump) |
6224f72b GS |
1034 | my_unexec(); |
1035 | ||
0453d815 | 1036 | if (isWARN_ONCE) |
3280af22 | 1037 | gv_check(PL_defstash); |
6224f72b GS |
1038 | |
1039 | LEAVE; | |
1040 | FREETMPS; | |
1041 | ||
1042 | #ifdef MYMALLOC | |
1043 | if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2) | |
1044 | dump_mstats("after compilation:"); | |
1045 | #endif | |
1046 | ||
1047 | ENTER; | |
3280af22 | 1048 | PL_restartop = 0; |
312caa8e | 1049 | return NULL; |
6224f72b GS |
1050 | } |
1051 | ||
1052 | int | |
0cb96387 | 1053 | perl_run(pTHXx) |
6224f72b | 1054 | { |
de616352 | 1055 | dTHR; |
6224f72b | 1056 | I32 oldscope; |
6224f72b | 1057 | int ret; |
db36c5a1 | 1058 | dJMPENV; |
cea2e8a9 GS |
1059 | #ifdef USE_THREADS |
1060 | dTHX; | |
1061 | #endif | |
6224f72b | 1062 | |
3280af22 | 1063 | oldscope = PL_scopestack_ix; |
6224f72b | 1064 | |
312caa8e | 1065 | redo_body: |
db36c5a1 | 1066 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_run_body), oldscope); |
6224f72b GS |
1067 | switch (ret) { |
1068 | case 1: | |
1069 | cxstack_ix = -1; /* start context stack again */ | |
312caa8e CS |
1070 | goto redo_body; |
1071 | case 0: /* normal completion */ | |
1072 | case 2: /* my_exit() */ | |
3280af22 | 1073 | while (PL_scopestack_ix > oldscope) |
6224f72b GS |
1074 | LEAVE; |
1075 | FREETMPS; | |
3280af22 | 1076 | PL_curstash = PL_defstash; |
865be832 | 1077 | if (PL_endav && !PL_minus_c) |
3280af22 | 1078 | call_list(oldscope, PL_endav); |
6224f72b GS |
1079 | #ifdef MYMALLOC |
1080 | if (PerlEnv_getenv("PERL_DEBUG_MSTATS")) | |
1081 | dump_mstats("after execution: "); | |
1082 | #endif | |
6224f72b GS |
1083 | return STATUS_NATIVE_EXPORT; |
1084 | case 3: | |
312caa8e CS |
1085 | if (PL_restartop) { |
1086 | POPSTACK_TO(PL_mainstack); | |
1087 | goto redo_body; | |
6224f72b | 1088 | } |
bf49b057 | 1089 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
1090 | FREETMPS; |
1091 | return 1; | |
6224f72b GS |
1092 | } |
1093 | ||
312caa8e CS |
1094 | /* NOTREACHED */ |
1095 | return 0; | |
1096 | } | |
1097 | ||
1098 | STATIC void * | |
cea2e8a9 | 1099 | S_run_body(pTHX_ va_list args) |
312caa8e CS |
1100 | { |
1101 | dTHR; | |
1102 | I32 oldscope = va_arg(args, I32); | |
1103 | ||
6224f72b | 1104 | DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n", |
3280af22 | 1105 | PL_sawampersand ? "Enabling" : "Omitting")); |
6224f72b | 1106 | |
3280af22 | 1107 | if (!PL_restartop) { |
6224f72b GS |
1108 | DEBUG_x(dump_all()); |
1109 | DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n")); | |
b900a521 JH |
1110 | DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n", |
1111 | PTR2UV(thr))); | |
6224f72b | 1112 | |
3280af22 | 1113 | if (PL_minus_c) { |
bf49b057 | 1114 | PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename); |
6224f72b GS |
1115 | my_exit(0); |
1116 | } | |
3280af22 | 1117 | if (PERLDB_SINGLE && PL_DBsingle) |
312caa8e | 1118 | sv_setiv(PL_DBsingle, 1); |
3280af22 NIS |
1119 | if (PL_initav) |
1120 | call_list(oldscope, PL_initav); | |
6224f72b GS |
1121 | } |
1122 | ||
1123 | /* do it */ | |
1124 | ||
3280af22 | 1125 | if (PL_restartop) { |
533c011a | 1126 | PL_op = PL_restartop; |
3280af22 | 1127 | PL_restartop = 0; |
cea2e8a9 | 1128 | CALLRUNOPS(aTHX); |
6224f72b | 1129 | } |
3280af22 NIS |
1130 | else if (PL_main_start) { |
1131 | CvDEPTH(PL_main_cv) = 1; | |
533c011a | 1132 | PL_op = PL_main_start; |
cea2e8a9 | 1133 | CALLRUNOPS(aTHX); |
6224f72b GS |
1134 | } |
1135 | ||
f6b3007c JH |
1136 | my_exit(0); |
1137 | /* NOTREACHED */ | |
312caa8e | 1138 | return NULL; |
6224f72b GS |
1139 | } |
1140 | ||
1141 | SV* | |
864dbfa3 | 1142 | Perl_get_sv(pTHX_ const char *name, I32 create) |
6224f72b GS |
1143 | { |
1144 | GV *gv; | |
1145 | #ifdef USE_THREADS | |
1146 | if (name[1] == '\0' && !isALPHA(name[0])) { | |
1147 | PADOFFSET tmp = find_threadsv(name); | |
1148 | if (tmp != NOT_IN_PAD) { | |
1149 | dTHR; | |
1150 | return THREADSV(tmp); | |
1151 | } | |
1152 | } | |
1153 | #endif /* USE_THREADS */ | |
1154 | gv = gv_fetchpv(name, create, SVt_PV); | |
1155 | if (gv) | |
1156 | return GvSV(gv); | |
1157 | return Nullsv; | |
1158 | } | |
1159 | ||
1160 | AV* | |
864dbfa3 | 1161 | Perl_get_av(pTHX_ const char *name, I32 create) |
6224f72b GS |
1162 | { |
1163 | GV* gv = gv_fetchpv(name, create, SVt_PVAV); | |
1164 | if (create) | |
1165 | return GvAVn(gv); | |
1166 | if (gv) | |
1167 | return GvAV(gv); | |
1168 | return Nullav; | |
1169 | } | |
1170 | ||
1171 | HV* | |
864dbfa3 | 1172 | Perl_get_hv(pTHX_ const char *name, I32 create) |
6224f72b | 1173 | { |
a0d0e21e LW |
1174 | GV* gv = gv_fetchpv(name, create, SVt_PVHV); |
1175 | if (create) | |
1176 | return GvHVn(gv); | |
1177 | if (gv) | |
1178 | return GvHV(gv); | |
1179 | return Nullhv; | |
1180 | } | |
1181 | ||
1182 | CV* | |
864dbfa3 | 1183 | Perl_get_cv(pTHX_ const char *name, I32 create) |
a0d0e21e LW |
1184 | { |
1185 | GV* gv = gv_fetchpv(name, create, SVt_PVCV); | |
b099ddc0 | 1186 | /* XXX unsafe for threads if eval_owner isn't held */ |
f6ec51f7 GS |
1187 | /* XXX this is probably not what they think they're getting. |
1188 | * It has the same effect as "sub name;", i.e. just a forward | |
1189 | * declaration! */ | |
8ebc5c01 | 1190 | if (create && !GvCVu(gv)) |
774d564b | 1191 | return newSUB(start_subparse(FALSE, 0), |
a0d0e21e | 1192 | newSVOP(OP_CONST, 0, newSVpv(name,0)), |
4633a7c4 | 1193 | Nullop, |
a0d0e21e LW |
1194 | Nullop); |
1195 | if (gv) | |
8ebc5c01 | 1196 | return GvCVu(gv); |
a0d0e21e LW |
1197 | return Nullcv; |
1198 | } | |
1199 | ||
79072805 LW |
1200 | /* Be sure to refetch the stack pointer after calling these routines. */ |
1201 | ||
a0d0e21e | 1202 | I32 |
864dbfa3 | 1203 | Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv) |
8ac85365 NIS |
1204 | |
1205 | /* See G_* flags in cop.h */ | |
1206 | /* null terminated arg list */ | |
8990e307 | 1207 | { |
a0d0e21e | 1208 | dSP; |
8990e307 | 1209 | |
924508f0 | 1210 | PUSHMARK(SP); |
a0d0e21e | 1211 | if (argv) { |
8990e307 | 1212 | while (*argv) { |
a0d0e21e | 1213 | XPUSHs(sv_2mortal(newSVpv(*argv,0))); |
8990e307 LW |
1214 | argv++; |
1215 | } | |
a0d0e21e | 1216 | PUTBACK; |
8990e307 | 1217 | } |
864dbfa3 | 1218 | return call_pv(sub_name, flags); |
8990e307 LW |
1219 | } |
1220 | ||
a0d0e21e | 1221 | I32 |
864dbfa3 | 1222 | Perl_call_pv(pTHX_ const char *sub_name, I32 flags) |
8ac85365 NIS |
1223 | /* name of the subroutine */ |
1224 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1225 | { |
864dbfa3 | 1226 | return call_sv((SV*)get_cv(sub_name, TRUE), flags); |
a0d0e21e LW |
1227 | } |
1228 | ||
1229 | I32 | |
864dbfa3 | 1230 | Perl_call_method(pTHX_ const char *methname, I32 flags) |
8ac85365 NIS |
1231 | /* name of the subroutine */ |
1232 | /* See G_* flags in cop.h */ | |
a0d0e21e LW |
1233 | { |
1234 | dSP; | |
1235 | OP myop; | |
533c011a NIS |
1236 | if (!PL_op) |
1237 | PL_op = &myop; | |
a0d0e21e LW |
1238 | XPUSHs(sv_2mortal(newSVpv(methname,0))); |
1239 | PUTBACK; | |
cea2e8a9 | 1240 | pp_method(); |
533c011a NIS |
1241 | if(PL_op == &myop) |
1242 | PL_op = Nullop; | |
864dbfa3 | 1243 | return call_sv(*PL_stack_sp--, flags); |
a0d0e21e LW |
1244 | } |
1245 | ||
1246 | /* May be called with any of a CV, a GV, or an SV containing the name. */ | |
1247 | I32 | |
864dbfa3 | 1248 | Perl_call_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 NIS |
1249 | |
1250 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1251 | { |
924508f0 | 1252 | dSP; |
a0d0e21e | 1253 | LOGOP myop; /* fake syntax tree node */ |
aa689395 | 1254 | I32 oldmark; |
a0d0e21e | 1255 | I32 retval; |
a0d0e21e | 1256 | I32 oldscope; |
54310121 | 1257 | bool oldcatch = CATCH_GET; |
6224f72b | 1258 | int ret; |
533c011a | 1259 | OP* oldop = PL_op; |
db36c5a1 | 1260 | dJMPENV; |
1e422769 | 1261 | |
a0d0e21e LW |
1262 | if (flags & G_DISCARD) { |
1263 | ENTER; | |
1264 | SAVETMPS; | |
1265 | } | |
1266 | ||
aa689395 | 1267 | Zero(&myop, 1, LOGOP); |
54310121 | 1268 | myop.op_next = Nullop; |
f51d4af5 | 1269 | if (!(flags & G_NOARGS)) |
aa689395 | 1270 | myop.op_flags |= OPf_STACKED; |
54310121 | 1271 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1272 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1273 | OPf_WANT_SCALAR); | |
462e5cf6 | 1274 | SAVEOP(); |
533c011a | 1275 | PL_op = (OP*)&myop; |
aa689395 | 1276 | |
3280af22 NIS |
1277 | EXTEND(PL_stack_sp, 1); |
1278 | *++PL_stack_sp = sv; | |
aa689395 | 1279 | oldmark = TOPMARK; |
3280af22 | 1280 | oldscope = PL_scopestack_ix; |
a0d0e21e | 1281 | |
3280af22 | 1282 | if (PERLDB_SUB && PL_curstash != PL_debstash |
36477c24 | 1283 | /* Handle first BEGIN of -d. */ |
3280af22 | 1284 | && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub))) |
36477c24 | 1285 | /* Try harder, since this may have been a sighandler, thus |
1286 | * curstash may be meaningless. */ | |
3280af22 | 1287 | && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash) |
491527d0 | 1288 | && !(flags & G_NODEBUG)) |
533c011a | 1289 | PL_op->op_private |= OPpENTERSUB_DB; |
a0d0e21e | 1290 | |
312caa8e | 1291 | if (!(flags & G_EVAL)) { |
0cdb2077 | 1292 | CATCH_SET(TRUE); |
864dbfa3 | 1293 | call_xbody((OP*)&myop, FALSE); |
312caa8e | 1294 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
0253cb41 | 1295 | CATCH_SET(oldcatch); |
312caa8e CS |
1296 | } |
1297 | else { | |
533c011a | 1298 | cLOGOP->op_other = PL_op; |
3280af22 | 1299 | PL_markstack_ptr--; |
4633a7c4 LW |
1300 | /* we're trying to emulate pp_entertry() here */ |
1301 | { | |
c09156bb | 1302 | register PERL_CONTEXT *cx; |
54310121 | 1303 | I32 gimme = GIMME_V; |
4633a7c4 LW |
1304 | |
1305 | ENTER; | |
1306 | SAVETMPS; | |
1307 | ||
533c011a | 1308 | push_return(PL_op->op_next); |
3280af22 | 1309 | PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp); |
4633a7c4 | 1310 | PUSHEVAL(cx, 0, 0); |
533c011a | 1311 | PL_eval_root = PL_op; /* Only needed so that goto works right. */ |
4633a7c4 | 1312 | |
faef0170 | 1313 | PL_in_eval = EVAL_INEVAL; |
4633a7c4 | 1314 | if (flags & G_KEEPERR) |
faef0170 | 1315 | PL_in_eval |= EVAL_KEEPERR; |
4633a7c4 | 1316 | else |
38a03e6e | 1317 | sv_setpv(ERRSV,""); |
4633a7c4 | 1318 | } |
3280af22 | 1319 | PL_markstack_ptr++; |
a0d0e21e | 1320 | |
312caa8e | 1321 | redo_body: |
db36c5a1 GS |
1322 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_call_body), |
1323 | (OP*)&myop, FALSE); | |
6224f72b GS |
1324 | switch (ret) { |
1325 | case 0: | |
312caa8e CS |
1326 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1327 | if (!(flags & G_KEEPERR)) | |
1328 | sv_setpv(ERRSV,""); | |
a0d0e21e | 1329 | break; |
6224f72b | 1330 | case 1: |
f86702cc | 1331 | STATUS_ALL_FAILURE; |
a0d0e21e | 1332 | /* FALL THROUGH */ |
6224f72b | 1333 | case 2: |
a0d0e21e | 1334 | /* my_exit() was called */ |
3280af22 | 1335 | PL_curstash = PL_defstash; |
a0d0e21e | 1336 | FREETMPS; |
3280af22 | 1337 | if (PL_statusvalue) |
cea2e8a9 | 1338 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 1339 | my_exit_jump(); |
a0d0e21e | 1340 | /* NOTREACHED */ |
6224f72b | 1341 | case 3: |
3280af22 | 1342 | if (PL_restartop) { |
533c011a | 1343 | PL_op = PL_restartop; |
3280af22 | 1344 | PL_restartop = 0; |
312caa8e | 1345 | goto redo_body; |
a0d0e21e | 1346 | } |
3280af22 | 1347 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
1348 | if (flags & G_ARRAY) |
1349 | retval = 0; | |
1350 | else { | |
1351 | retval = 1; | |
3280af22 | 1352 | *++PL_stack_sp = &PL_sv_undef; |
a0d0e21e | 1353 | } |
312caa8e | 1354 | break; |
a0d0e21e | 1355 | } |
a0d0e21e | 1356 | |
3280af22 | 1357 | if (PL_scopestack_ix > oldscope) { |
a0a2876f LW |
1358 | SV **newsp; |
1359 | PMOP *newpm; | |
1360 | I32 gimme; | |
c09156bb | 1361 | register PERL_CONTEXT *cx; |
a0a2876f LW |
1362 | I32 optype; |
1363 | ||
1364 | POPBLOCK(cx,newpm); | |
1365 | POPEVAL(cx); | |
1366 | pop_return(); | |
3280af22 | 1367 | PL_curpm = newpm; |
a0a2876f | 1368 | LEAVE; |
a0d0e21e | 1369 | } |
a0d0e21e | 1370 | } |
1e422769 | 1371 | |
a0d0e21e | 1372 | if (flags & G_DISCARD) { |
3280af22 | 1373 | PL_stack_sp = PL_stack_base + oldmark; |
a0d0e21e LW |
1374 | retval = 0; |
1375 | FREETMPS; | |
1376 | LEAVE; | |
1377 | } | |
533c011a | 1378 | PL_op = oldop; |
a0d0e21e LW |
1379 | return retval; |
1380 | } | |
1381 | ||
312caa8e | 1382 | STATIC void * |
cea2e8a9 | 1383 | S_call_body(pTHX_ va_list args) |
312caa8e CS |
1384 | { |
1385 | OP *myop = va_arg(args, OP*); | |
1386 | int is_eval = va_arg(args, int); | |
1387 | ||
864dbfa3 | 1388 | call_xbody(myop, is_eval); |
312caa8e CS |
1389 | return NULL; |
1390 | } | |
1391 | ||
1392 | STATIC void | |
cea2e8a9 | 1393 | S_call_xbody(pTHX_ OP *myop, int is_eval) |
312caa8e CS |
1394 | { |
1395 | dTHR; | |
1396 | ||
1397 | if (PL_op == myop) { | |
1398 | if (is_eval) | |
cea2e8a9 | 1399 | PL_op = Perl_pp_entereval(aTHX); |
312caa8e | 1400 | else |
cea2e8a9 | 1401 | PL_op = Perl_pp_entersub(aTHX); |
312caa8e CS |
1402 | } |
1403 | if (PL_op) | |
cea2e8a9 | 1404 | CALLRUNOPS(aTHX); |
312caa8e CS |
1405 | } |
1406 | ||
6e72f9df | 1407 | /* Eval a string. The G_EVAL flag is always assumed. */ |
8990e307 | 1408 | |
a0d0e21e | 1409 | I32 |
864dbfa3 | 1410 | Perl_eval_sv(pTHX_ SV *sv, I32 flags) |
8ac85365 NIS |
1411 | |
1412 | /* See G_* flags in cop.h */ | |
a0d0e21e | 1413 | { |
924508f0 | 1414 | dSP; |
a0d0e21e | 1415 | UNOP myop; /* fake syntax tree node */ |
3280af22 | 1416 | I32 oldmark = SP - PL_stack_base; |
4633a7c4 | 1417 | I32 retval; |
4633a7c4 | 1418 | I32 oldscope; |
6224f72b | 1419 | int ret; |
533c011a | 1420 | OP* oldop = PL_op; |
db36c5a1 | 1421 | dJMPENV; |
84902520 | 1422 | |
4633a7c4 LW |
1423 | if (flags & G_DISCARD) { |
1424 | ENTER; | |
1425 | SAVETMPS; | |
1426 | } | |
1427 | ||
462e5cf6 | 1428 | SAVEOP(); |
533c011a NIS |
1429 | PL_op = (OP*)&myop; |
1430 | Zero(PL_op, 1, UNOP); | |
3280af22 NIS |
1431 | EXTEND(PL_stack_sp, 1); |
1432 | *++PL_stack_sp = sv; | |
1433 | oldscope = PL_scopestack_ix; | |
79072805 | 1434 | |
4633a7c4 LW |
1435 | if (!(flags & G_NOARGS)) |
1436 | myop.op_flags = OPf_STACKED; | |
79072805 | 1437 | myop.op_next = Nullop; |
6e72f9df | 1438 | myop.op_type = OP_ENTEREVAL; |
54310121 | 1439 | myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID : |
1440 | (flags & G_ARRAY) ? OPf_WANT_LIST : | |
1441 | OPf_WANT_SCALAR); | |
6e72f9df | 1442 | if (flags & G_KEEPERR) |
1443 | myop.op_flags |= OPf_SPECIAL; | |
4633a7c4 | 1444 | |
312caa8e | 1445 | redo_body: |
db36c5a1 GS |
1446 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_call_body), |
1447 | (OP*)&myop, TRUE); | |
6224f72b GS |
1448 | switch (ret) { |
1449 | case 0: | |
312caa8e CS |
1450 | retval = PL_stack_sp - (PL_stack_base + oldmark); |
1451 | if (!(flags & G_KEEPERR)) | |
1452 | sv_setpv(ERRSV,""); | |
4633a7c4 | 1453 | break; |
6224f72b | 1454 | case 1: |
f86702cc | 1455 | STATUS_ALL_FAILURE; |
4633a7c4 | 1456 | /* FALL THROUGH */ |
6224f72b | 1457 | case 2: |
4633a7c4 | 1458 | /* my_exit() was called */ |
3280af22 | 1459 | PL_curstash = PL_defstash; |
4633a7c4 | 1460 | FREETMPS; |
3280af22 | 1461 | if (PL_statusvalue) |
cea2e8a9 | 1462 | Perl_croak(aTHX_ "Callback called exit"); |
f86702cc | 1463 | my_exit_jump(); |
4633a7c4 | 1464 | /* NOTREACHED */ |
6224f72b | 1465 | case 3: |
3280af22 | 1466 | if (PL_restartop) { |
533c011a | 1467 | PL_op = PL_restartop; |
3280af22 | 1468 | PL_restartop = 0; |
312caa8e | 1469 | goto redo_body; |
4633a7c4 | 1470 | } |
3280af22 | 1471 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
1472 | if (flags & G_ARRAY) |
1473 | retval = 0; | |
1474 | else { | |
1475 | retval = 1; | |
3280af22 | 1476 | *++PL_stack_sp = &PL_sv_undef; |
4633a7c4 | 1477 | } |
312caa8e | 1478 | break; |
4633a7c4 LW |
1479 | } |
1480 | ||
4633a7c4 | 1481 | if (flags & G_DISCARD) { |
3280af22 | 1482 | PL_stack_sp = PL_stack_base + oldmark; |
4633a7c4 LW |
1483 | retval = 0; |
1484 | FREETMPS; | |
1485 | LEAVE; | |
1486 | } | |
533c011a | 1487 | PL_op = oldop; |
4633a7c4 LW |
1488 | return retval; |
1489 | } | |
1490 | ||
137443ea | 1491 | SV* |
864dbfa3 | 1492 | Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error) |
137443ea | 1493 | { |
1494 | dSP; | |
1495 | SV* sv = newSVpv(p, 0); | |
1496 | ||
924508f0 | 1497 | PUSHMARK(SP); |
864dbfa3 | 1498 | eval_sv(sv, G_SCALAR); |
137443ea | 1499 | SvREFCNT_dec(sv); |
1500 | ||
1501 | SPAGAIN; | |
1502 | sv = POPs; | |
1503 | PUTBACK; | |
1504 | ||
2d8e6c8d GS |
1505 | if (croak_on_error && SvTRUE(ERRSV)) { |
1506 | STRLEN n_a; | |
cea2e8a9 | 1507 | Perl_croak(aTHX_ SvPVx(ERRSV, n_a)); |
2d8e6c8d | 1508 | } |
137443ea | 1509 | |
1510 | return sv; | |
1511 | } | |
1512 | ||
4633a7c4 LW |
1513 | /* Require a module. */ |
1514 | ||
1515 | void | |
864dbfa3 | 1516 | Perl_require_pv(pTHX_ const char *pv) |
4633a7c4 | 1517 | { |
d3acc0f7 JP |
1518 | SV* sv; |
1519 | dSP; | |
e788e7d3 | 1520 | PUSHSTACKi(PERLSI_REQUIRE); |
d3acc0f7 JP |
1521 | PUTBACK; |
1522 | sv = sv_newmortal(); | |
4633a7c4 LW |
1523 | sv_setpv(sv, "require '"); |
1524 | sv_catpv(sv, pv); | |
1525 | sv_catpv(sv, "'"); | |
864dbfa3 | 1526 | eval_sv(sv, G_DISCARD); |
d3acc0f7 JP |
1527 | SPAGAIN; |
1528 | POPSTACK; | |
79072805 LW |
1529 | } |
1530 | ||
79072805 | 1531 | void |
864dbfa3 | 1532 | Perl_magicname(pTHX_ char *sym, char *name, I32 namlen) |
79072805 LW |
1533 | { |
1534 | register GV *gv; | |
1535 | ||
85e6fe83 | 1536 | if (gv = gv_fetchpv(sym,TRUE, SVt_PV)) |
79072805 LW |
1537 | sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen); |
1538 | } | |
1539 | ||
76e3520e | 1540 | STATIC void |
cea2e8a9 | 1541 | S_usage(pTHX_ char *name) /* XXX move this out into a module ? */ |
4633a7c4 | 1542 | { |
ab821d7f | 1543 | /* This message really ought to be max 23 lines. |
1544 | * Removed -h because the user already knows that opton. Others? */ | |
fb73857a | 1545 | |
76e3520e | 1546 | static char *usage_msg[] = { |
fb73857a | 1547 | "-0[octal] specify record separator (\\0, if no argument)", |
1548 | "-a autosplit mode with -n or -p (splits $_ into @F)", | |
1549 | "-c check syntax only (runs BEGIN and END blocks)", | |
aac3bd0d GS |
1550 | "-d[:debugger] run program under debugger", |
1551 | "-D[number/list] set debugging flags (argument is a bit mask or alphabets)", | |
1552 | "-e 'command' one line of program (several -e's allowed, omit programfile)", | |
1553 | "-F/pattern/ split() pattern for -a switch (//'s are optional)", | |
1554 | "-i[extension] edit <> files in place (makes backup if extension supplied)", | |
1555 | "-Idirectory specify @INC/#include directory (several -I's allowed)", | |
fb73857a | 1556 | "-l[octal] enable line ending processing, specifies line terminator", |
aac3bd0d GS |
1557 | "-[mM][-]module execute `use/no module...' before executing program", |
1558 | "-n assume 'while (<>) { ... }' loop around program", | |
1559 | "-p assume loop like -n but print line also, like sed", | |
1560 | "-P run program through C preprocessor before compilation", | |
1561 | "-s enable rudimentary parsing for switches after programfile", | |
1562 | "-S look for programfile using PATH environment variable", | |
1563 | "-T enable tainting checks", | |
1564 | "-u dump core after parsing program", | |
fb73857a | 1565 | "-U allow unsafe operations", |
aac3bd0d GS |
1566 | "-v print version, subversion (includes VERY IMPORTANT perl info)", |
1567 | "-V[:variable] print configuration summary (or a single Config.pm variable)", | |
1568 | "-w enable many useful warnings (RECOMMENDED)", | |
fb73857a | 1569 | "-x[directory] strip off text before #!perl line and perhaps cd to directory", |
1570 | "\n", | |
1571 | NULL | |
1572 | }; | |
76e3520e | 1573 | char **p = usage_msg; |
fb73857a | 1574 | |
ab821d7f | 1575 | printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name); |
fb73857a | 1576 | while (*p) |
1577 | printf("\n %s", *p++); | |
4633a7c4 LW |
1578 | } |
1579 | ||
79072805 LW |
1580 | /* This routine handles any switches that can be given during run */ |
1581 | ||
1582 | char * | |
864dbfa3 | 1583 | Perl_moreswitches(pTHX_ char *s) |
79072805 LW |
1584 | { |
1585 | I32 numlen; | |
c07a80fd | 1586 | U32 rschar; |
79072805 LW |
1587 | |
1588 | switch (*s) { | |
1589 | case '0': | |
a863c7d1 MB |
1590 | { |
1591 | dTHR; | |
dff6d3cd | 1592 | rschar = (U32)scan_oct(s, 4, &numlen); |
3280af22 | 1593 | SvREFCNT_dec(PL_nrs); |
c07a80fd | 1594 | if (rschar & ~((U8)~0)) |
3280af22 | 1595 | PL_nrs = &PL_sv_undef; |
c07a80fd | 1596 | else if (!rschar && numlen >= 2) |
79cb57f6 | 1597 | PL_nrs = newSVpvn("", 0); |
c07a80fd | 1598 | else { |
1599 | char ch = rschar; | |
79cb57f6 | 1600 | PL_nrs = newSVpvn(&ch, 1); |
79072805 LW |
1601 | } |
1602 | return s + numlen; | |
a863c7d1 | 1603 | } |
2304df62 | 1604 | case 'F': |
3280af22 NIS |
1605 | PL_minus_F = TRUE; |
1606 | PL_splitstr = savepv(s + 1); | |
2304df62 AD |
1607 | s += strlen(s); |
1608 | return s; | |
79072805 | 1609 | case 'a': |
3280af22 | 1610 | PL_minus_a = TRUE; |
79072805 LW |
1611 | s++; |
1612 | return s; | |
1613 | case 'c': | |
3280af22 | 1614 | PL_minus_c = TRUE; |
79072805 LW |
1615 | s++; |
1616 | return s; | |
1617 | case 'd': | |
bbce6d69 | 1618 | forbid_setid("-d"); |
4633a7c4 | 1619 | s++; |
c07a80fd | 1620 | if (*s == ':' || *s == '=') { |
cea2e8a9 | 1621 | my_setenv("PERL5DB", Perl_form(aTHX_ "use Devel::%s;", ++s)); |
4633a7c4 | 1622 | s += strlen(s); |
4633a7c4 | 1623 | } |
3280af22 NIS |
1624 | if (!PL_perldb) { |
1625 | PL_perldb = PERLDB_ALL; | |
a0d0e21e LW |
1626 | init_debugger(); |
1627 | } | |
79072805 LW |
1628 | return s; |
1629 | case 'D': | |
0453d815 | 1630 | { |
79072805 | 1631 | #ifdef DEBUGGING |
bbce6d69 | 1632 | forbid_setid("-D"); |
79072805 | 1633 | if (isALPHA(s[1])) { |
8b73bbec | 1634 | static char debopts[] = "psltocPmfrxuLHXDS"; |
79072805 LW |
1635 | char *d; |
1636 | ||
93a17b20 | 1637 | for (s++; *s && (d = strchr(debopts,*s)); s++) |
3280af22 | 1638 | PL_debug |= 1 << (d - debopts); |
79072805 LW |
1639 | } |
1640 | else { | |
3280af22 | 1641 | PL_debug = atoi(s+1); |
79072805 LW |
1642 | for (s++; isDIGIT(*s); s++) ; |
1643 | } | |
3280af22 | 1644 | PL_debug |= 0x80000000; |
79072805 | 1645 | #else |
0453d815 PM |
1646 | dTHR; |
1647 | if (ckWARN_d(WARN_DEBUGGING)) | |
1648 | Perl_warner(aTHX_ WARN_DEBUGGING, | |
1649 | "Recompile perl with -DDEBUGGING to use -D switch\n"); | |
a0d0e21e | 1650 | for (s++; isALNUM(*s); s++) ; |
79072805 LW |
1651 | #endif |
1652 | /*SUPPRESS 530*/ | |
1653 | return s; | |
0453d815 | 1654 | } |
4633a7c4 | 1655 | case 'h': |
3280af22 | 1656 | usage(PL_origargv[0]); |
6ad3d225 | 1657 | PerlProc_exit(0); |
79072805 | 1658 | case 'i': |
3280af22 NIS |
1659 | if (PL_inplace) |
1660 | Safefree(PL_inplace); | |
1661 | PL_inplace = savepv(s+1); | |
79072805 | 1662 | /*SUPPRESS 530*/ |
3280af22 | 1663 | for (s = PL_inplace; *s && !isSPACE(*s); s++) ; |
7b8d334a | 1664 | if (*s) { |
fb73857a | 1665 | *s++ = '\0'; |
7b8d334a GS |
1666 | if (*s == '-') /* Additional switches on #! line. */ |
1667 | s++; | |
1668 | } | |
fb73857a | 1669 | return s; |
1670 | case 'I': /* -I handled both here and in parse_perl() */ | |
bbce6d69 | 1671 | forbid_setid("-I"); |
fb73857a | 1672 | ++s; |
1673 | while (*s && isSPACE(*s)) | |
1674 | ++s; | |
1675 | if (*s) { | |
774d564b | 1676 | char *e, *p; |
748a9306 | 1677 | for (e = s; *e && !isSPACE(*e); e++) ; |
774d564b | 1678 | p = savepvn(s, e-s); |
1679 | incpush(p, TRUE); | |
1680 | Safefree(p); | |
fb73857a | 1681 | s = e; |
79072805 LW |
1682 | } |
1683 | else | |
cea2e8a9 | 1684 | Perl_croak(aTHX_ "No space allowed after -I"); |
fb73857a | 1685 | return s; |
79072805 | 1686 | case 'l': |
3280af22 | 1687 | PL_minus_l = TRUE; |
79072805 | 1688 | s++; |
3280af22 NIS |
1689 | if (PL_ors) |
1690 | Safefree(PL_ors); | |
79072805 | 1691 | if (isDIGIT(*s)) { |
3280af22 NIS |
1692 | PL_ors = savepv("\n"); |
1693 | PL_orslen = 1; | |
dff6d3cd | 1694 | *PL_ors = (char)scan_oct(s, 3 + (*s == '0'), &numlen); |
79072805 LW |
1695 | s += numlen; |
1696 | } | |
1697 | else { | |
a863c7d1 | 1698 | dTHR; |
3280af22 NIS |
1699 | if (RsPARA(PL_nrs)) { |
1700 | PL_ors = "\n\n"; | |
1701 | PL_orslen = 2; | |
c07a80fd | 1702 | } |
1703 | else | |
3280af22 NIS |
1704 | PL_ors = SvPV(PL_nrs, PL_orslen); |
1705 | PL_ors = savepvn(PL_ors, PL_orslen); | |
79072805 LW |
1706 | } |
1707 | return s; | |
1a30305b | 1708 | case 'M': |
bbce6d69 | 1709 | forbid_setid("-M"); /* XXX ? */ |
1a30305b | 1710 | /* FALL THROUGH */ |
1711 | case 'm': | |
bbce6d69 | 1712 | forbid_setid("-m"); /* XXX ? */ |
1a30305b | 1713 | if (*++s) { |
a5f75d66 | 1714 | char *start; |
11343788 | 1715 | SV *sv; |
a5f75d66 AD |
1716 | char *use = "use "; |
1717 | /* -M-foo == 'no foo' */ | |
1718 | if (*s == '-') { use = "no "; ++s; } | |
11343788 | 1719 | sv = newSVpv(use,0); |
a5f75d66 | 1720 | start = s; |
1a30305b | 1721 | /* We allow -M'Module qw(Foo Bar)' */ |
c07a80fd | 1722 | while(isALNUM(*s) || *s==':') ++s; |
1723 | if (*s != '=') { | |
11343788 | 1724 | sv_catpv(sv, start); |
c07a80fd | 1725 | if (*(start-1) == 'm') { |
1726 | if (*s != '\0') | |
cea2e8a9 | 1727 | Perl_croak(aTHX_ "Can't use '%c' after -mname", *s); |
11343788 | 1728 | sv_catpv( sv, " ()"); |
c07a80fd | 1729 | } |
1730 | } else { | |
11343788 MB |
1731 | sv_catpvn(sv, start, s-start); |
1732 | sv_catpv(sv, " split(/,/,q{"); | |
1733 | sv_catpv(sv, ++s); | |
1734 | sv_catpv(sv, "})"); | |
c07a80fd | 1735 | } |
1a30305b | 1736 | s += strlen(s); |
3280af22 NIS |
1737 | if (PL_preambleav == NULL) |
1738 | PL_preambleav = newAV(); | |
1739 | av_push(PL_preambleav, sv); | |
1a30305b | 1740 | } |
1741 | else | |
cea2e8a9 | 1742 | Perl_croak(aTHX_ "No space allowed after -%c", *(s-1)); |
1a30305b | 1743 | return s; |
79072805 | 1744 | case 'n': |
3280af22 | 1745 | PL_minus_n = TRUE; |
79072805 LW |
1746 | s++; |
1747 | return s; | |
1748 | case 'p': | |
3280af22 | 1749 | PL_minus_p = TRUE; |
79072805 LW |
1750 | s++; |
1751 | return s; | |
1752 | case 's': | |
bbce6d69 | 1753 | forbid_setid("-s"); |
3280af22 | 1754 | PL_doswitches = TRUE; |
79072805 LW |
1755 | s++; |
1756 | return s; | |
463ee0b2 | 1757 | case 'T': |
3280af22 | 1758 | if (!PL_tainting) |
cea2e8a9 | 1759 | Perl_croak(aTHX_ "Too late for \"-T\" option"); |
463ee0b2 LW |
1760 | s++; |
1761 | return s; | |
79072805 | 1762 | case 'u': |
3280af22 | 1763 | PL_do_undump = TRUE; |
79072805 LW |
1764 | s++; |
1765 | return s; | |
1766 | case 'U': | |
3280af22 | 1767 | PL_unsafe = TRUE; |
79072805 LW |
1768 | s++; |
1769 | return s; | |
1770 | case 'v': | |
cceca5ed GS |
1771 | #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0 |
1772 | printf("\nThis is perl, version %d.%03d_%02d built for %s", | |
1773 | PERL_REVISION, PERL_VERSION, PERL_SUBVERSION, ARCHNAME); | |
a5f75d66 | 1774 | #else |
fb73857a | 1775 | printf("\nThis is perl, version %s built for %s", |
6b88bc9c | 1776 | PL_patchlevel, ARCHNAME); |
fb73857a | 1777 | #endif |
1778 | #if defined(LOCAL_PATCH_COUNT) | |
1779 | if (LOCAL_PATCH_COUNT > 0) | |
1780 | printf("\n(with %d registered patch%s, see perl -V for more detail)", | |
b900a521 | 1781 | (int)LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : ""); |
a5f75d66 | 1782 | #endif |
1a30305b | 1783 | |
4eb8286e | 1784 | printf("\n\nCopyright 1987-1999, Larry Wall\n"); |
79072805 | 1785 | #ifdef MSDOS |
fb73857a | 1786 | printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n"); |
55497cff | 1787 | #endif |
1788 | #ifdef DJGPP | |
1789 | printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n"); | |
4eb8286e | 1790 | printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n"); |
4633a7c4 | 1791 | #endif |
79072805 | 1792 | #ifdef OS2 |
5dd60ef7 | 1793 | printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n" |
4eb8286e | 1794 | "Version 5 port Copyright (c) 1994-1999, Andreas Kaiser, Ilya Zakharevich\n"); |
79072805 | 1795 | #endif |
79072805 | 1796 | #ifdef atarist |
760ac839 | 1797 | printf("atariST series port, ++jrb bammi@cadence.com\n"); |
79072805 | 1798 | #endif |
a3f9223b | 1799 | #ifdef __BEOS__ |
4eb8286e | 1800 | printf("BeOS port Copyright Tom Spindler, 1997-1999\n"); |
a3f9223b | 1801 | #endif |
1d84e8df | 1802 | #ifdef MPE |
4eb8286e | 1803 | printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1999\n"); |
1d84e8df | 1804 | #endif |
9d116dd7 | 1805 | #ifdef OEMVS |
4eb8286e | 1806 | printf("MVS (OS390) port by Mortice Kern Systems, 1997-1999\n"); |
9d116dd7 | 1807 | #endif |
495c5fdc | 1808 | #ifdef __VOS__ |
4eb8286e | 1809 | printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1999\n"); |
495c5fdc | 1810 | #endif |
092bebab | 1811 | #ifdef __OPEN_VM |
4eb8286e | 1812 | printf("VM/ESA port by Neale Ferguson, 1998-1999\n"); |
092bebab | 1813 | #endif |
a1a0e61e | 1814 | #ifdef POSIX_BC |
4eb8286e | 1815 | printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n"); |
a1a0e61e | 1816 | #endif |
61ae2fbf | 1817 | #ifdef __MINT__ |
4eb8286e | 1818 | printf("MiNT port by Guido Flohr, 1997-1999\n"); |
61ae2fbf | 1819 | #endif |
baed7233 DL |
1820 | #ifdef BINARY_BUILD_NOTICE |
1821 | BINARY_BUILD_NOTICE; | |
1822 | #endif | |
760ac839 | 1823 | printf("\n\ |
79072805 | 1824 | Perl may be copied only under the terms of either the Artistic License or the\n\ |
95103687 GS |
1825 | GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\ |
1826 | Complete documentation for Perl, including FAQ lists, should be found on\n\ | |
1827 | this system using `man perl' or `perldoc perl'. If you have access to the\n\ | |
1828 | Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n"); | |
6ad3d225 | 1829 | PerlProc_exit(0); |
79072805 | 1830 | case 'w': |
599cee73 PM |
1831 | if (! (PL_dowarn & G_WARN_ALL_MASK)) |
1832 | PL_dowarn |= G_WARN_ON; | |
1833 | s++; | |
1834 | return s; | |
1835 | case 'W': | |
1836 | PL_dowarn = G_WARN_ALL_ON|G_WARN_ON; | |
e24b16f9 | 1837 | PL_compiling.cop_warnings = WARN_ALL ; |
599cee73 PM |
1838 | s++; |
1839 | return s; | |
1840 | case 'X': | |
1841 | PL_dowarn = G_WARN_ALL_OFF; | |
e24b16f9 | 1842 | PL_compiling.cop_warnings = WARN_NONE ; |
79072805 LW |
1843 | s++; |
1844 | return s; | |
a0d0e21e | 1845 | case '*': |
79072805 LW |
1846 | case ' ': |
1847 | if (s[1] == '-') /* Additional switches on #! line. */ | |
1848 | return s+2; | |
1849 | break; | |
a0d0e21e | 1850 | case '-': |
79072805 | 1851 | case 0: |
51882d45 | 1852 | #if defined(WIN32) || !defined(PERL_STRICT_CR) |
a868473f NIS |
1853 | case '\r': |
1854 | #endif | |
79072805 LW |
1855 | case '\n': |
1856 | case '\t': | |
1857 | break; | |
aa689395 | 1858 | #ifdef ALTERNATE_SHEBANG |
1859 | case 'S': /* OS/2 needs -S on "extproc" line. */ | |
1860 | break; | |
1861 | #endif | |
a0d0e21e | 1862 | case 'P': |
3280af22 | 1863 | if (PL_preprocess) |
a0d0e21e LW |
1864 | return s+1; |
1865 | /* FALL THROUGH */ | |
79072805 | 1866 | default: |
cea2e8a9 | 1867 | Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s); |
79072805 LW |
1868 | } |
1869 | return Nullch; | |
1870 | } | |
1871 | ||
1872 | /* compliments of Tom Christiansen */ | |
1873 | ||
1874 | /* unexec() can be found in the Gnu emacs distribution */ | |
ee580363 | 1875 | /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */ |
79072805 LW |
1876 | |
1877 | void | |
864dbfa3 | 1878 | Perl_my_unexec(pTHX) |
79072805 LW |
1879 | { |
1880 | #ifdef UNEXEC | |
46fc3d4c | 1881 | SV* prog; |
1882 | SV* file; | |
ee580363 | 1883 | int status = 1; |
79072805 LW |
1884 | extern int etext; |
1885 | ||
ee580363 | 1886 | prog = newSVpv(BIN_EXP, 0); |
46fc3d4c | 1887 | sv_catpv(prog, "/perl"); |
6b88bc9c | 1888 | file = newSVpv(PL_origfilename, 0); |
46fc3d4c | 1889 | sv_catpv(file, ".perldump"); |
79072805 | 1890 | |
ee580363 GS |
1891 | unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0); |
1892 | /* unexec prints msg to stderr in case of failure */ | |
6ad3d225 | 1893 | PerlProc_exit(status); |
79072805 | 1894 | #else |
a5f75d66 AD |
1895 | # ifdef VMS |
1896 | # include <lib$routines.h> | |
1897 | lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */ | |
aa689395 | 1898 | # else |
79072805 | 1899 | ABORT(); /* for use with undump */ |
aa689395 | 1900 | # endif |
a5f75d66 | 1901 | #endif |
79072805 LW |
1902 | } |
1903 | ||
cb68f92d GS |
1904 | /* initialize curinterp */ |
1905 | STATIC void | |
cea2e8a9 | 1906 | S_init_interp(pTHX) |
cb68f92d GS |
1907 | { |
1908 | ||
066ef5b5 | 1909 | #ifdef PERL_OBJECT /* XXX kludge */ |
cb68f92d | 1910 | #define I_REINIT \ |
6b88bc9c GS |
1911 | STMT_START { \ |
1912 | PL_chopset = " \n-"; \ | |
1913 | PL_copline = NOLINE; \ | |
1914 | PL_curcop = &PL_compiling;\ | |
1915 | PL_curcopdb = NULL; \ | |
1916 | PL_dbargs = 0; \ | |
3967c732 | 1917 | PL_dumpindent = 4; \ |
6b88bc9c GS |
1918 | PL_laststatval = -1; \ |
1919 | PL_laststype = OP_STAT; \ | |
1920 | PL_maxscream = -1; \ | |
1921 | PL_maxsysfd = MAXSYSFD; \ | |
1922 | PL_statname = Nullsv; \ | |
1923 | PL_tmps_floor = -1; \ | |
1924 | PL_tmps_ix = -1; \ | |
1925 | PL_op_mask = NULL; \ | |
6b88bc9c GS |
1926 | PL_laststatval = -1; \ |
1927 | PL_laststype = OP_STAT; \ | |
1928 | PL_mess_sv = Nullsv; \ | |
1929 | PL_splitstr = " "; \ | |
1930 | PL_generation = 100; \ | |
1931 | PL_exitlist = NULL; \ | |
1932 | PL_exitlistlen = 0; \ | |
1933 | PL_regindent = 0; \ | |
1934 | PL_in_clean_objs = FALSE; \ | |
1935 | PL_in_clean_all = FALSE; \ | |
1936 | PL_profiledata = NULL; \ | |
1937 | PL_rsfp = Nullfp; \ | |
1938 | PL_rsfp_filters = Nullav; \ | |
24d3c518 | 1939 | PL_dirty = FALSE; \ |
cb68f92d | 1940 | } STMT_END |
9666903d | 1941 | I_REINIT; |
066ef5b5 GS |
1942 | #else |
1943 | # ifdef MULTIPLICITY | |
1944 | # define PERLVAR(var,type) | |
51371543 | 1945 | # define PERLVARA(var,n,type) |
cea2e8a9 | 1946 | # if defined(PERL_IMPLICIT_CONTEXT) |
54aff467 GS |
1947 | # if defined(USE_THREADS) |
1948 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; | |
1949 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
1950 | # else /* !USE_THREADS */ | |
1951 | # define PERLVARI(var,type,init) aTHX->var = init; | |
1952 | # define PERLVARIC(var,type,init) aTHX->var = init; | |
1953 | # endif /* USE_THREADS */ | |
cea2e8a9 | 1954 | # else |
c5be433b GS |
1955 | # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init; |
1956 | # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init; | |
cea2e8a9 | 1957 | # endif |
066ef5b5 GS |
1958 | # include "intrpvar.h" |
1959 | # ifndef USE_THREADS | |
1960 | # include "thrdvar.h" | |
1961 | # endif | |
1962 | # undef PERLVAR | |
51371543 | 1963 | # undef PERLVARA |
066ef5b5 GS |
1964 | # undef PERLVARI |
1965 | # undef PERLVARIC | |
3967c732 | 1966 | # else |
066ef5b5 | 1967 | # define PERLVAR(var,type) |
51371543 | 1968 | # define PERLVARA(var,n,type) |
533c011a NIS |
1969 | # define PERLVARI(var,type,init) PL_##var = init; |
1970 | # define PERLVARIC(var,type,init) PL_##var = init; | |
066ef5b5 GS |
1971 | # include "intrpvar.h" |
1972 | # ifndef USE_THREADS | |
1973 | # include "thrdvar.h" | |
1974 | # endif | |
1975 | # undef PERLVAR | |
51371543 | 1976 | # undef PERLVARA |
066ef5b5 GS |
1977 | # undef PERLVARI |
1978 | # undef PERLVARIC | |
1979 | # endif | |
cb68f92d GS |
1980 | #endif |
1981 | ||
cb68f92d GS |
1982 | } |
1983 | ||
76e3520e | 1984 | STATIC void |
cea2e8a9 | 1985 | S_init_main_stash(pTHX) |
79072805 | 1986 | { |
11343788 | 1987 | dTHR; |
463ee0b2 | 1988 | GV *gv; |
6e72f9df | 1989 | |
1990 | /* Note that strtab is a rather special HV. Assumptions are made | |
1991 | about not iterating on it, and not adding tie magic to it. | |
1992 | It is properly deallocated in perl_destruct() */ | |
3280af22 | 1993 | PL_strtab = newHV(); |
5f08fbcd GS |
1994 | #ifdef USE_THREADS |
1995 | MUTEX_INIT(&PL_strtab_mutex); | |
1996 | #endif | |
3280af22 NIS |
1997 | HvSHAREKEYS_off(PL_strtab); /* mandatory */ |
1998 | hv_ksplit(PL_strtab, 512); | |
6e72f9df | 1999 | |
3280af22 | 2000 | PL_curstash = PL_defstash = newHV(); |
79cb57f6 | 2001 | PL_curstname = newSVpvn("main",4); |
adbc6bb1 LW |
2002 | gv = gv_fetchpv("main::",TRUE, SVt_PVHV); |
2003 | SvREFCNT_dec(GvHV(gv)); | |
3280af22 | 2004 | GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash); |
463ee0b2 | 2005 | SvREADONLY_on(gv); |
3280af22 NIS |
2006 | HvNAME(PL_defstash) = savepv("main"); |
2007 | PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV))); | |
2008 | GvMULTI_on(PL_incgv); | |
2009 | PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */ | |
2010 | GvMULTI_on(PL_hintgv); | |
2011 | PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV); | |
2012 | PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV)); | |
2013 | GvMULTI_on(PL_errgv); | |
2014 | PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */ | |
2015 | GvMULTI_on(PL_replgv); | |
cea2e8a9 | 2016 | (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */ |
38a03e6e MB |
2017 | sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */ |
2018 | sv_setpvn(ERRSV, "", 0); | |
3280af22 NIS |
2019 | PL_curstash = PL_defstash; |
2020 | PL_compiling.cop_stash = PL_defstash; | |
2021 | PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV)); | |
2022 | PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV)); | |
4633a7c4 | 2023 | /* We must init $/ before switches are processed. */ |
864dbfa3 | 2024 | sv_setpvn(get_sv("/", TRUE), "\n", 1); |
79072805 LW |
2025 | } |
2026 | ||
76e3520e | 2027 | STATIC void |
cea2e8a9 | 2028 | S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript) |
79072805 | 2029 | { |
0f15f207 | 2030 | dTHR; |
79072805 | 2031 | register char *s; |
2a92aaa0 | 2032 | |
6c4ab083 | 2033 | *fdscript = -1; |
79072805 | 2034 | |
3280af22 NIS |
2035 | if (PL_e_script) { |
2036 | PL_origfilename = savepv("-e"); | |
96436eeb | 2037 | } |
6c4ab083 GS |
2038 | else { |
2039 | /* if find_script() returns, it returns a malloc()-ed value */ | |
3280af22 | 2040 | PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1); |
6c4ab083 GS |
2041 | |
2042 | if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) { | |
2043 | char *s = scriptname + 8; | |
2044 | *fdscript = atoi(s); | |
2045 | while (isDIGIT(*s)) | |
2046 | s++; | |
2047 | if (*s) { | |
2048 | scriptname = savepv(s + 1); | |
3280af22 NIS |
2049 | Safefree(PL_origfilename); |
2050 | PL_origfilename = scriptname; | |
6c4ab083 GS |
2051 | } |
2052 | } | |
2053 | } | |
2054 | ||
3280af22 NIS |
2055 | PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename); |
2056 | if (strEQ(PL_origfilename,"-")) | |
79072805 | 2057 | scriptname = ""; |
01f988be | 2058 | if (*fdscript >= 0) { |
3280af22 | 2059 | PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE); |
96436eeb | 2060 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 NIS |
2061 | if (PL_rsfp) |
2062 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 2063 | #endif |
2064 | } | |
3280af22 | 2065 | else if (PL_preprocess) { |
46fc3d4c | 2066 | char *cpp_cfg = CPPSTDIN; |
79cb57f6 | 2067 | SV *cpp = newSVpvn("",0); |
46fc3d4c | 2068 | SV *cmd = NEWSV(0,0); |
2069 | ||
2070 | if (strEQ(cpp_cfg, "cppstdin")) | |
cea2e8a9 | 2071 | Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP); |
46fc3d4c | 2072 | sv_catpv(cpp, cpp_cfg); |
79072805 | 2073 | |
79072805 | 2074 | sv_catpv(sv,"-I"); |
fed7345c | 2075 | sv_catpv(sv,PRIVLIB_EXP); |
46fc3d4c | 2076 | |
79072805 | 2077 | #ifdef MSDOS |
cea2e8a9 | 2078 | Perl_sv_setpvf(aTHX_ cmd, "\ |
79072805 LW |
2079 | sed %s -e \"/^[^#]/b\" \ |
2080 | -e \"/^#[ ]*include[ ]/b\" \ | |
2081 | -e \"/^#[ ]*define[ ]/b\" \ | |
2082 | -e \"/^#[ ]*if[ ]/b\" \ | |
2083 | -e \"/^#[ ]*ifdef[ ]/b\" \ | |
2084 | -e \"/^#[ ]*ifndef[ ]/b\" \ | |
2085 | -e \"/^#[ ]*else/b\" \ | |
2086 | -e \"/^#[ ]*elif[ ]/b\" \ | |
2087 | -e \"/^#[ ]*undef[ ]/b\" \ | |
2088 | -e \"/^#[ ]*endif/b\" \ | |
2089 | -e \"s/^#.*//\" \ | |
fc36a67e | 2090 | %s | %_ -C %_ %s", |
6b88bc9c | 2091 | (PL_doextract ? "-e \"1,/^#/d\n\"" : ""), |
79072805 | 2092 | #else |
092bebab | 2093 | # ifdef __OPEN_VM |
cea2e8a9 | 2094 | Perl_sv_setpvf(aTHX_ cmd, "\ |
092bebab JH |
2095 | %s %s -e '/^[^#]/b' \ |
2096 | -e '/^#[ ]*include[ ]/b' \ | |
2097 | -e '/^#[ ]*define[ ]/b' \ | |
2098 | -e '/^#[ ]*if[ ]/b' \ | |
2099 | -e '/^#[ ]*ifdef[ ]/b' \ | |
2100 | -e '/^#[ ]*ifndef[ ]/b' \ | |
2101 | -e '/^#[ ]*else/b' \ | |
2102 | -e '/^#[ ]*elif[ ]/b' \ | |
2103 | -e '/^#[ ]*undef[ ]/b' \ | |
2104 | -e '/^#[ ]*endif/b' \ | |
2105 | -e 's/^[ ]*#.*//' \ | |
2106 | %s | %_ %_ %s", | |
2107 | # else | |
cea2e8a9 | 2108 | Perl_sv_setpvf(aTHX_ cmd, "\ |
79072805 LW |
2109 | %s %s -e '/^[^#]/b' \ |
2110 | -e '/^#[ ]*include[ ]/b' \ | |
2111 | -e '/^#[ ]*define[ ]/b' \ | |
2112 | -e '/^#[ ]*if[ ]/b' \ | |
2113 | -e '/^#[ ]*ifdef[ ]/b' \ | |
2114 | -e '/^#[ ]*ifndef[ ]/b' \ | |
2115 | -e '/^#[ ]*else/b' \ | |
2116 | -e '/^#[ ]*elif[ ]/b' \ | |
2117 | -e '/^#[ ]*undef[ ]/b' \ | |
2118 | -e '/^#[ ]*endif/b' \ | |
2119 | -e 's/^[ ]*#.*//' \ | |
fc36a67e | 2120 | %s | %_ -C %_ %s", |
092bebab | 2121 | # endif |
79072805 LW |
2122 | #ifdef LOC_SED |
2123 | LOC_SED, | |
2124 | #else | |
2125 | "sed", | |
2126 | #endif | |
3280af22 | 2127 | (PL_doextract ? "-e '1,/^#/d\n'" : ""), |
79072805 | 2128 | #endif |
46fc3d4c | 2129 | scriptname, cpp, sv, CPPMINUS); |
3280af22 | 2130 | PL_doextract = FALSE; |
79072805 | 2131 | #ifdef IAMSUID /* actually, this is caught earlier */ |
b28d0864 | 2132 | if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */ |
79072805 | 2133 | #ifdef HAS_SETEUID |
b28d0864 | 2134 | (void)seteuid(PL_uid); /* musn't stay setuid root */ |
79072805 LW |
2135 | #else |
2136 | #ifdef HAS_SETREUID | |
b28d0864 | 2137 | (void)setreuid((Uid_t)-1, PL_uid); |
85e6fe83 LW |
2138 | #else |
2139 | #ifdef HAS_SETRESUID | |
b28d0864 | 2140 | (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1); |
79072805 | 2141 | #else |
b28d0864 | 2142 | PerlProc_setuid(PL_uid); |
79072805 LW |
2143 | #endif |
2144 | #endif | |
85e6fe83 | 2145 | #endif |
b28d0864 | 2146 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 2147 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
79072805 LW |
2148 | } |
2149 | #endif /* IAMSUID */ | |
3280af22 | 2150 | PL_rsfp = PerlProc_popen(SvPVX(cmd), "r"); |
46fc3d4c | 2151 | SvREFCNT_dec(cmd); |
2152 | SvREFCNT_dec(cpp); | |
79072805 LW |
2153 | } |
2154 | else if (!*scriptname) { | |
bbce6d69 | 2155 | forbid_setid("program input from stdin"); |
3280af22 | 2156 | PL_rsfp = PerlIO_stdin(); |
79072805 | 2157 | } |
96436eeb | 2158 | else { |
3280af22 | 2159 | PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE); |
96436eeb | 2160 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
3280af22 NIS |
2161 | if (PL_rsfp) |
2162 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */ | |
96436eeb | 2163 | #endif |
2164 | } | |
3280af22 | 2165 | if (!PL_rsfp) { |
13281fa4 | 2166 | #ifdef DOSUID |
a687059c | 2167 | #ifndef IAMSUID /* in case script is not readable before setuid */ |
6b88bc9c GS |
2168 | if (PL_euid && |
2169 | PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 && | |
2170 | PL_statbuf.st_mode & (S_ISUID|S_ISGID)) | |
2171 | { | |
46fc3d4c | 2172 | /* try again */ |
cea2e8a9 GS |
2173 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
2174 | Perl_croak(aTHX_ "Can't do setuid\n"); | |
13281fa4 LW |
2175 | } |
2176 | #endif | |
2177 | #endif | |
cea2e8a9 | 2178 | Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n", |
3280af22 | 2179 | SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno)); |
13281fa4 | 2180 | } |
79072805 | 2181 | } |
8d063cd8 | 2182 | |
7b89560d JH |
2183 | /* Mention |
2184 | * I_SYSSTATVFS HAS_FSTATVFS | |
2185 | * I_SYSMOUNT | |
2186 | * I_STATFS HAS_FSTATFS | |
2187 | * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT | |
2188 | * here so that metaconfig picks them up. */ | |
2189 | ||
104d25b7 | 2190 | #ifdef IAMSUID |
864dbfa3 | 2191 | STATIC int |
e688b231 | 2192 | S_fd_on_nosuid_fs(pTHX_ int fd) |
104d25b7 | 2193 | { |
0545a864 JH |
2194 | int check_okay = 0; /* able to do all the required sys/libcalls */ |
2195 | int on_nosuid = 0; /* the fd is on a nosuid fs */ | |
104d25b7 | 2196 | /* |
0545a864 | 2197 | * Preferred order: fstatvfs(), fstatfs(), ustat()+statfs(), getmntent(). |
e688b231 | 2198 | * fstatvfs() is UNIX98. |
0545a864 JH |
2199 | * fstatfs() is 4.3 BSD. |
2200 | * ustat()+statfs() is pre-4.3 BSD. | |
2201 | * getmntent() is O(number-of-mounted-filesystems) and can hang on | |
2202 | * an irrelevant filesystem while trying to reach the right one. | |
104d25b7 JH |
2203 | */ |
2204 | ||
2205 | # ifdef HAS_FSTATVFS | |
2206 | struct statvfs stfs; | |
2207 | check_okay = fstatvfs(fd, &stfs) == 0; | |
2208 | on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID); | |
2209 | # else | |
0545a864 JH |
2210 | # ifdef PERL_MOUNT_NOSUID |
2211 | # if defined(HAS_FSTATFS) && defined(HAS_STRUCT_STATFS_F_FLAGS) | |
e688b231 | 2212 | struct statfs stfs; |
104d25b7 | 2213 | check_okay = fstatfs(fd, &stfs) == 0; |
104d25b7 | 2214 | on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID); |
0545a864 JH |
2215 | # else |
2216 | # if defined(HAS_FSTAT) && \ | |
2217 | defined(HAS_USTAT) && \ | |
2218 | defined(HAS_STATFS) && \ | |
2219 | defined(HAS_STRUCT_FS_DATA) /* no struct statfs */ | |
2220 | struct stat fdst; | |
2221 | if (fstat(fd, &fdst) == 0) { | |
2222 | struct ustat us; | |
2223 | if (ustat(fdst.st_dev, &us) == 0) { | |
2224 | struct fs_data fsd; | |
2225 | if (statfs(PL_origfilename, &fsd) == 0) { | |
2226 | size_t cmplen = sizeof(us.f_fname); | |
2227 | if (sizeof(fsd.fd_req.path) < cmplen) | |
2228 | cmplen = sizeof(fsd.fd_req.path); | |
2229 | if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) && | |
2230 | fdst.st_dev == fsd.fd_req.dev) { | |
2231 | check_okay = 1; | |
2232 | on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID; | |
2233 | } | |
2234 | } | |
2235 | } | |
2236 | } | |
2237 | } | |
2238 | # endif /* fstat+ustat+statfs */ | |
2239 | # endif /* statfs */ | |
104d25b7 | 2240 | # else |
0545a864 JH |
2241 | # if defined(HAS_GETMNTENT) && \ |
2242 | defined(HAS_HASMNTOPT) && \ | |
2243 | defined(MNTOPT_NOSUID) | |
104d25b7 JH |
2244 | FILE *mtab = fopen("/etc/mtab", "r"); |
2245 | struct mntent *entry; | |
2246 | struct stat stb, fsb; | |
2247 | ||
2248 | if (mtab && (fstat(fd, &stb) == 0)) { | |
e688b231 JH |
2249 | while (entry = getmntent(mtab)) { |
2250 | if (stat(entry->mnt_dir, &fsb) == 0 | |
2251 | && fsb.st_dev == stb.st_dev) | |
104d25b7 JH |
2252 | { |
2253 | /* found the filesystem */ | |
2254 | check_okay = 1; | |
2255 | if (hasmntopt(entry, MNTOPT_NOSUID)) | |
2256 | on_nosuid = 1; | |
2257 | break; | |
e688b231 | 2258 | } /* A single fs may well fail its stat(). */ |
104d25b7 JH |
2259 | } |
2260 | } | |
2261 | if (mtab) | |
2262 | fclose(mtab); | |
0545a864 JH |
2263 | # endif /* getmntent */ |
2264 | # endif /* PERL_MOUNT_NOSUID: fstatfs or fstat+ustat+statfs */ | |
e688b231 | 2265 | # endif /* statvfs */ |
0545a864 | 2266 | |
104d25b7 | 2267 | if (!check_okay) |
0545a864 | 2268 | Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename); |
104d25b7 JH |
2269 | return on_nosuid; |
2270 | } | |
2271 | #endif /* IAMSUID */ | |
2272 | ||
76e3520e | 2273 | STATIC void |
cea2e8a9 | 2274 | S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript) |
79072805 | 2275 | { |
96436eeb | 2276 | int which; |
2277 | ||
13281fa4 LW |
2278 | /* do we need to emulate setuid on scripts? */ |
2279 | ||
2280 | /* This code is for those BSD systems that have setuid #! scripts disabled | |
2281 | * in the kernel because of a security problem. Merely defining DOSUID | |
2282 | * in perl will not fix that problem, but if you have disabled setuid | |
2283 | * scripts in the kernel, this will attempt to emulate setuid and setgid | |
2284 | * on scripts that have those now-otherwise-useless bits set. The setuid | |
27e2fb84 LW |
2285 | * root version must be called suidperl or sperlN.NNN. If regular perl |
2286 | * discovers that it has opened a setuid script, it calls suidperl with | |
2287 | * the same argv that it had. If suidperl finds that the script it has | |
2288 | * just opened is NOT setuid root, it sets the effective uid back to the | |
2289 | * uid. We don't just make perl setuid root because that loses the | |
2290 | * effective uid we had before invoking perl, if it was different from the | |
2291 | * uid. | |
13281fa4 LW |
2292 | * |
2293 | * DOSUID must be defined in both perl and suidperl, and IAMSUID must | |
2294 | * be defined in suidperl only. suidperl must be setuid root. The | |
2295 | * Configure script will set this up for you if you want it. | |
2296 | */ | |
a687059c | 2297 | |
13281fa4 | 2298 | #ifdef DOSUID |
ea0efc06 | 2299 | dTHR; |
6e72f9df | 2300 | char *s, *s2; |
a0d0e21e | 2301 | |
b28d0864 | 2302 | if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */ |
cea2e8a9 | 2303 | Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename); |
b28d0864 | 2304 | if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) { |
79072805 | 2305 | I32 len; |
2d8e6c8d | 2306 | STRLEN n_a; |
13281fa4 | 2307 | |
a687059c | 2308 | #ifdef IAMSUID |
fe14fcc3 | 2309 | #ifndef HAS_SETREUID |
a687059c LW |
2310 | /* On this access check to make sure the directories are readable, |
2311 | * there is actually a small window that the user could use to make | |
2312 | * filename point to an accessible directory. So there is a faint | |
2313 | * chance that someone could execute a setuid script down in a | |
2314 | * non-accessible directory. I don't know what to do about that. | |
2315 | * But I don't think it's too important. The manual lies when | |
2316 | * it says access() is useful in setuid programs. | |
2317 | */ | |
6b88bc9c | 2318 | if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/ |
cea2e8a9 | 2319 | Perl_croak(aTHX_ "Permission denied"); |
a687059c LW |
2320 | #else |
2321 | /* If we can swap euid and uid, then we can determine access rights | |
2322 | * with a simple stat of the file, and then compare device and | |
2323 | * inode to make sure we did stat() on the same file we opened. | |
2324 | * Then we just have to make sure he or she can execute it. | |
2325 | */ | |
2326 | { | |
2327 | struct stat tmpstatbuf; | |
2328 | ||
85e6fe83 LW |
2329 | if ( |
2330 | #ifdef HAS_SETREUID | |
b28d0864 | 2331 | setreuid(PL_euid,PL_uid) < 0 |
a0d0e21e LW |
2332 | #else |
2333 | # if HAS_SETRESUID | |
b28d0864 | 2334 | setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0 |
a0d0e21e | 2335 | # endif |
85e6fe83 | 2336 | #endif |
b28d0864 | 2337 | || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 2338 | Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */ |
6b88bc9c | 2339 | if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0) |
cea2e8a9 | 2340 | Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */ |
2bb3463c | 2341 | #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK) |
e688b231 | 2342 | if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp))) |
cea2e8a9 | 2343 | Perl_croak(aTHX_ "Permission denied"); |
104d25b7 | 2344 | #endif |
b28d0864 NIS |
2345 | if (tmpstatbuf.st_dev != PL_statbuf.st_dev || |
2346 | tmpstatbuf.st_ino != PL_statbuf.st_ino) { | |
2347 | (void)PerlIO_close(PL_rsfp); | |
2348 | if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */ | |
2349 | PerlIO_printf(PL_rsfp, | |
ff0cee69 | 2350 | "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\ |
2351 | (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n", | |
b28d0864 NIS |
2352 | (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino, |
2353 | (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino, | |
6b88bc9c | 2354 | SvPVX(GvSV(PL_curcop->cop_filegv)), |
b28d0864 NIS |
2355 | (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid); |
2356 | (void)PerlProc_pclose(PL_rsfp); | |
a687059c | 2357 | } |
cea2e8a9 | 2358 | Perl_croak(aTHX_ "Permission denied\n"); |
a687059c | 2359 | } |
85e6fe83 LW |
2360 | if ( |
2361 | #ifdef HAS_SETREUID | |
b28d0864 | 2362 | setreuid(PL_uid,PL_euid) < 0 |
a0d0e21e LW |
2363 | #else |
2364 | # if defined(HAS_SETRESUID) | |
b28d0864 | 2365 | setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0 |
a0d0e21e | 2366 | # endif |
85e6fe83 | 2367 | #endif |
b28d0864 | 2368 | || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid) |
cea2e8a9 | 2369 | Perl_croak(aTHX_ "Can't reswap uid and euid"); |
b28d0864 | 2370 | if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */ |
cea2e8a9 | 2371 | Perl_croak(aTHX_ "Permission denied\n"); |
a687059c | 2372 | } |
fe14fcc3 | 2373 | #endif /* HAS_SETREUID */ |
a687059c LW |
2374 | #endif /* IAMSUID */ |
2375 | ||
b28d0864 | 2376 | if (!S_ISREG(PL_statbuf.st_mode)) |
cea2e8a9 | 2377 | Perl_croak(aTHX_ "Permission denied"); |
b28d0864 | 2378 | if (PL_statbuf.st_mode & S_IWOTH) |
cea2e8a9 | 2379 | Perl_croak(aTHX_ "Setuid/gid script is writable by world"); |
6b88bc9c GS |
2380 | PL_doswitches = FALSE; /* -s is insecure in suid */ |
2381 | PL_curcop->cop_line++; | |
2382 | if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch || | |
2d8e6c8d | 2383 | strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */ |
cea2e8a9 | 2384 | Perl_croak(aTHX_ "No #! line"); |
2d8e6c8d | 2385 | s = SvPV(PL_linestr,n_a)+2; |
663a0e37 | 2386 | if (*s == ' ') s++; |
45d8adaa | 2387 | while (!isSPACE(*s)) s++; |
2d8e6c8d | 2388 | for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 && |
6e72f9df | 2389 | (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ; |
2390 | if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */ | |
cea2e8a9 | 2391 | Perl_croak(aTHX_ "Not a perl script"); |
a687059c | 2392 | while (*s == ' ' || *s == '\t') s++; |
13281fa4 LW |
2393 | /* |
2394 | * #! arg must be what we saw above. They can invoke it by | |
2395 | * mentioning suidperl explicitly, but they may not add any strange | |
2396 | * arguments beyond what #! says if they do invoke suidperl that way. | |
2397 | */ | |
2398 | len = strlen(validarg); | |
2399 | if (strEQ(validarg," PHOOEY ") || | |
45d8adaa | 2400 | strnNE(s,validarg,len) || !isSPACE(s[len])) |
cea2e8a9 | 2401 | Perl_croak(aTHX_ "Args must match #! line"); |
a687059c LW |
2402 | |
2403 | #ifndef IAMSUID | |
b28d0864 NIS |
2404 | if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) && |
2405 | PL_euid == PL_statbuf.st_uid) | |
2406 | if (!PL_do_undump) | |
cea2e8a9 | 2407 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2408 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2409 | #endif /* IAMSUID */ | |
13281fa4 | 2410 | |
b28d0864 NIS |
2411 | if (PL_euid) { /* oops, we're not the setuid root perl */ |
2412 | (void)PerlIO_close(PL_rsfp); | |
13281fa4 | 2413 | #ifndef IAMSUID |
46fc3d4c | 2414 | /* try again */ |
cea2e8a9 | 2415 | PerlProc_execv(Perl_form(aTHX_ "%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv); |
13281fa4 | 2416 | #endif |
cea2e8a9 | 2417 | Perl_croak(aTHX_ "Can't do setuid\n"); |
13281fa4 LW |
2418 | } |
2419 | ||
b28d0864 | 2420 | if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) { |
fe14fcc3 | 2421 | #ifdef HAS_SETEGID |
b28d0864 | 2422 | (void)setegid(PL_statbuf.st_gid); |
a687059c | 2423 | #else |
fe14fcc3 | 2424 | #ifdef HAS_SETREGID |
b28d0864 | 2425 | (void)setregid((Gid_t)-1,PL_statbuf.st_gid); |
85e6fe83 LW |
2426 | #else |
2427 | #ifdef HAS_SETRESGID | |
b28d0864 | 2428 | (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1); |
a687059c | 2429 | #else |
b28d0864 | 2430 | PerlProc_setgid(PL_statbuf.st_gid); |
a687059c LW |
2431 | #endif |
2432 | #endif | |
85e6fe83 | 2433 | #endif |
b28d0864 | 2434 | if (PerlProc_getegid() != PL_statbuf.st_gid) |
cea2e8a9 | 2435 | Perl_croak(aTHX_ "Can't do setegid!\n"); |
83025b21 | 2436 | } |
b28d0864 NIS |
2437 | if (PL_statbuf.st_mode & S_ISUID) { |
2438 | if (PL_statbuf.st_uid != PL_euid) | |
fe14fcc3 | 2439 | #ifdef HAS_SETEUID |
b28d0864 | 2440 | (void)seteuid(PL_statbuf.st_uid); /* all that for this */ |
a687059c | 2441 | #else |
fe14fcc3 | 2442 | #ifdef HAS_SETREUID |
b28d0864 | 2443 | (void)setreuid((Uid_t)-1,PL_statbuf.st_uid); |
85e6fe83 LW |
2444 | #else |
2445 | #ifdef HAS_SETRESUID | |
b28d0864 | 2446 | (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1); |
a687059c | 2447 | #else |
b28d0864 | 2448 | PerlProc_setuid(PL_statbuf.st_uid); |
a687059c LW |
2449 | #endif |
2450 | #endif | |
85e6fe83 | 2451 | #endif |
b28d0864 | 2452 | if (PerlProc_geteuid() != PL_statbuf.st_uid) |
cea2e8a9 | 2453 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
a687059c | 2454 | } |
b28d0864 | 2455 | else if (PL_uid) { /* oops, mustn't run as root */ |
fe14fcc3 | 2456 | #ifdef HAS_SETEUID |
b28d0864 | 2457 | (void)seteuid((Uid_t)PL_uid); |
a687059c | 2458 | #else |
fe14fcc3 | 2459 | #ifdef HAS_SETREUID |
b28d0864 | 2460 | (void)setreuid((Uid_t)-1,(Uid_t)PL_uid); |
a687059c | 2461 | #else |
85e6fe83 | 2462 | #ifdef HAS_SETRESUID |
b28d0864 | 2463 | (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1); |
85e6fe83 | 2464 | #else |
b28d0864 | 2465 | PerlProc_setuid((Uid_t)PL_uid); |
85e6fe83 | 2466 | #endif |
a687059c LW |
2467 | #endif |
2468 | #endif | |
b28d0864 | 2469 | if (PerlProc_geteuid() != PL_uid) |
cea2e8a9 | 2470 | Perl_croak(aTHX_ "Can't do seteuid!\n"); |
83025b21 | 2471 | } |
748a9306 | 2472 | init_ids(); |
b28d0864 | 2473 | if (!cando(S_IXUSR,TRUE,&PL_statbuf)) |
cea2e8a9 | 2474 | Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */ |
13281fa4 LW |
2475 | } |
2476 | #ifdef IAMSUID | |
6b88bc9c | 2477 | else if (PL_preprocess) |
cea2e8a9 | 2478 | Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n"); |
96436eeb | 2479 | else if (fdscript >= 0) |
cea2e8a9 | 2480 | Perl_croak(aTHX_ "fd script not allowed in suidperl\n"); |
13281fa4 | 2481 | else |
cea2e8a9 | 2482 | Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n"); |
96436eeb | 2483 | |
2484 | /* We absolutely must clear out any saved ids here, so we */ | |
2485 | /* exec the real perl, substituting fd script for scriptname. */ | |
2486 | /* (We pass script name as "subdir" of fd, which perl will grok.) */ | |
b28d0864 NIS |
2487 | PerlIO_rewind(PL_rsfp); |
2488 | PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */ | |
6b88bc9c GS |
2489 | for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ; |
2490 | if (!PL_origargv[which]) | |
cea2e8a9 GS |
2491 | Perl_croak(aTHX_ "Permission denied"); |
2492 | PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s", | |
6b88bc9c | 2493 | PerlIO_fileno(PL_rsfp), PL_origargv[which])); |
96436eeb | 2494 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
b28d0864 | 2495 | fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */ |
96436eeb | 2496 | #endif |
cea2e8a9 GS |
2497 | PerlProc_execv(Perl_form(aTHX_ "%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */ |
2498 | Perl_croak(aTHX_ "Can't do setuid\n"); | |
13281fa4 | 2499 | #endif /* IAMSUID */ |
a687059c | 2500 | #else /* !DOSUID */ |
3280af22 | 2501 | if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */ |
a687059c | 2502 | #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW |
96827780 | 2503 | dTHR; |
b28d0864 NIS |
2504 | PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */ |
2505 | if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID) | |
a687059c | 2506 | || |
b28d0864 | 2507 | (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID) |
a687059c | 2508 | ) |
b28d0864 | 2509 | if (!PL_do_undump) |
cea2e8a9 | 2510 | Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\ |
a687059c LW |
2511 | FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n"); |
2512 | #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */ | |
2513 | /* not set-id, must be wrapped */ | |
a687059c | 2514 | } |
13281fa4 | 2515 | #endif /* DOSUID */ |
79072805 | 2516 | } |
13281fa4 | 2517 | |
76e3520e | 2518 | STATIC void |
cea2e8a9 | 2519 | S_find_beginning(pTHX) |
79072805 | 2520 | { |
6e72f9df | 2521 | register char *s, *s2; |
33b78306 LW |
2522 | |
2523 | /* skip forward in input to the real script? */ | |
2524 | ||
bbce6d69 | 2525 | forbid_setid("-x"); |
3280af22 NIS |
2526 | while (PL_doextract) { |
2527 | if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch) | |
cea2e8a9 | 2528 | Perl_croak(aTHX_ "No Perl script found in input\n"); |
6e72f9df | 2529 | if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) { |
3280af22 NIS |
2530 | PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */ |
2531 | PL_doextract = FALSE; | |
6e72f9df | 2532 | while (*s && !(isSPACE (*s) || *s == '#')) s++; |
2533 | s2 = s; | |
2534 | while (*s == ' ' || *s == '\t') s++; | |
2535 | if (*s++ == '-') { | |
2536 | while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--; | |
2537 | if (strnEQ(s2-4,"perl",4)) | |
2538 | /*SUPPRESS 530*/ | |
2539 | while (s = moreswitches(s)) ; | |
33b78306 | 2540 | } |
83025b21 LW |
2541 | } |
2542 | } | |
2543 | } | |
2544 | ||
afe37c7d | 2545 | |
76e3520e | 2546 | STATIC void |
cea2e8a9 | 2547 | S_init_ids(pTHX) |
352d5a3a | 2548 | { |
d8eceb89 JH |
2549 | PL_uid = PerlProc_getuid(); |
2550 | PL_euid = PerlProc_geteuid(); | |
2551 | PL_gid = PerlProc_getgid(); | |
2552 | PL_egid = PerlProc_getegid(); | |
748a9306 | 2553 | #ifdef VMS |
b28d0864 NIS |
2554 | PL_uid |= PL_gid << 16; |
2555 | PL_euid |= PL_egid << 16; | |
748a9306 | 2556 | #endif |
3280af22 | 2557 | PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid)); |
748a9306 | 2558 | } |
79072805 | 2559 | |
76e3520e | 2560 | STATIC void |
cea2e8a9 | 2561 | S_forbid_setid(pTHX_ char *s) |
bbce6d69 | 2562 | { |
3280af22 | 2563 | if (PL_euid != PL_uid) |
cea2e8a9 | 2564 | Perl_croak(aTHX_ "No %s allowed while running setuid", s); |
3280af22 | 2565 | if (PL_egid != PL_gid) |
cea2e8a9 | 2566 | Perl_croak(aTHX_ "No %s allowed while running setgid", s); |
bbce6d69 | 2567 | } |
2568 | ||
1ee4443e IZ |
2569 | void |
2570 | Perl_init_debugger(pTHX) | |
748a9306 | 2571 | { |
11343788 | 2572 | dTHR; |
1ee4443e IZ |
2573 | HV *ostash = PL_curstash; |
2574 | ||
3280af22 NIS |
2575 | PL_curstash = PL_debstash; |
2576 | PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV)))); | |
2577 | AvREAL_off(PL_dbargs); | |
2578 | PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV); | |
2579 | PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV); | |
2580 | PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV)); | |
1ee4443e | 2581 | sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */ |
3280af22 NIS |
2582 | PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV))); |
2583 | sv_setiv(PL_DBsingle, 0); | |
2584 | PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV))); | |
2585 | sv_setiv(PL_DBtrace, 0); | |
2586 | PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV))); | |
2587 | sv_setiv(PL_DBsignal, 0); | |
1ee4443e | 2588 | PL_curstash = ostash; |
352d5a3a LW |
2589 | } |
2590 | ||
2ce36478 SM |
2591 | #ifndef STRESS_REALLOC |
2592 | #define REASONABLE(size) (size) | |
2593 | #else | |
2594 | #define REASONABLE(size) (1) /* unreasonable */ | |
2595 | #endif | |
2596 | ||
11343788 | 2597 | void |
cea2e8a9 | 2598 | Perl_init_stacks(pTHX) |
79072805 | 2599 | { |
e336de0d | 2600 | /* start with 128-item stack and 8K cxstack */ |
3280af22 | 2601 | PL_curstackinfo = new_stackinfo(REASONABLE(128), |
e336de0d | 2602 | REASONABLE(8192/sizeof(PERL_CONTEXT) - 1)); |
3280af22 NIS |
2603 | PL_curstackinfo->si_type = PERLSI_MAIN; |
2604 | PL_curstack = PL_curstackinfo->si_stack; | |
2605 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ | |
79072805 | 2606 | |
3280af22 NIS |
2607 | PL_stack_base = AvARRAY(PL_curstack); |
2608 | PL_stack_sp = PL_stack_base; | |
2609 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); | |
8990e307 | 2610 | |
3280af22 NIS |
2611 | New(50,PL_tmps_stack,REASONABLE(128),SV*); |
2612 | PL_tmps_floor = -1; | |
2613 | PL_tmps_ix = -1; | |
2614 | PL_tmps_max = REASONABLE(128); | |
8990e307 | 2615 | |
3280af22 NIS |
2616 | New(54,PL_markstack,REASONABLE(32),I32); |
2617 | PL_markstack_ptr = PL_markstack; | |
2618 | PL_markstack_max = PL_markstack + REASONABLE(32); | |
79072805 | 2619 | |
e336de0d GS |
2620 | SET_MARKBASE; |
2621 | ||
3280af22 NIS |
2622 | New(54,PL_scopestack,REASONABLE(32),I32); |
2623 | PL_scopestack_ix = 0; | |
2624 | PL_scopestack_max = REASONABLE(32); | |
79072805 | 2625 | |
3280af22 NIS |
2626 | New(54,PL_savestack,REASONABLE(128),ANY); |
2627 | PL_savestack_ix = 0; | |
2628 | PL_savestack_max = REASONABLE(128); | |
79072805 | 2629 | |
3280af22 NIS |
2630 | New(54,PL_retstack,REASONABLE(16),OP*); |
2631 | PL_retstack_ix = 0; | |
2632 | PL_retstack_max = REASONABLE(16); | |
378cc40b | 2633 | } |
33b78306 | 2634 | |
2ce36478 SM |
2635 | #undef REASONABLE |
2636 | ||
76e3520e | 2637 | STATIC void |
cea2e8a9 | 2638 | S_nuke_stacks(pTHX) |
6e72f9df | 2639 | { |
e858de61 | 2640 | dTHR; |
3280af22 NIS |
2641 | while (PL_curstackinfo->si_next) |
2642 | PL_curstackinfo = PL_curstackinfo->si_next; | |
2643 | while (PL_curstackinfo) { | |
2644 | PERL_SI *p = PL_curstackinfo->si_prev; | |
bac4b2ad | 2645 | /* curstackinfo->si_stack got nuked by sv_free_arenas() */ |
3280af22 NIS |
2646 | Safefree(PL_curstackinfo->si_cxstack); |
2647 | Safefree(PL_curstackinfo); | |
2648 | PL_curstackinfo = p; | |
e336de0d | 2649 | } |
3280af22 NIS |
2650 | Safefree(PL_tmps_stack); |
2651 | Safefree(PL_markstack); | |
2652 | Safefree(PL_scopestack); | |
2653 | Safefree(PL_savestack); | |
2654 | Safefree(PL_retstack); | |
378cc40b | 2655 | } |
33b78306 | 2656 | |
76e3520e | 2657 | #ifndef PERL_OBJECT |
760ac839 | 2658 | static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */ |
76e3520e | 2659 | #endif |
7aa04957 | 2660 | |
76e3520e | 2661 | STATIC void |
cea2e8a9 | 2662 | S_init_lexer(pTHX) |
8990e307 | 2663 | { |
76e3520e GS |
2664 | #ifdef PERL_OBJECT |
2665 | PerlIO *tmpfp; | |
2666 | #endif | |
3280af22 NIS |
2667 | tmpfp = PL_rsfp; |
2668 | PL_rsfp = Nullfp; | |
2669 | lex_start(PL_linestr); | |
2670 | PL_rsfp = tmpfp; | |
79cb57f6 | 2671 | PL_subname = newSVpvn("main",4); |
8990e307 LW |
2672 | } |
2673 | ||
76e3520e | 2674 | STATIC void |
cea2e8a9 | 2675 | S_init_predump_symbols(pTHX) |
45d8adaa | 2676 | { |
11343788 | 2677 | dTHR; |
93a17b20 | 2678 | GV *tmpgv; |
a0d0e21e | 2679 | GV *othergv; |
af8c498a | 2680 | IO *io; |
79072805 | 2681 | |
864dbfa3 | 2682 | sv_setpvn(get_sv("\"", TRUE), " ", 1); |
3280af22 NIS |
2683 | PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO); |
2684 | GvMULTI_on(PL_stdingv); | |
af8c498a GS |
2685 | io = GvIOp(PL_stdingv); |
2686 | IoIFP(io) = PerlIO_stdin(); | |
adbc6bb1 | 2687 | tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV); |
a5f75d66 | 2688 | GvMULTI_on(tmpgv); |
af8c498a | 2689 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 2690 | |
85e6fe83 | 2691 | tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO); |
a5f75d66 | 2692 | GvMULTI_on(tmpgv); |
af8c498a GS |
2693 | io = GvIOp(tmpgv); |
2694 | IoOFP(io) = IoIFP(io) = PerlIO_stdout(); | |
4633a7c4 | 2695 | setdefout(tmpgv); |
adbc6bb1 | 2696 | tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV); |
a5f75d66 | 2697 | GvMULTI_on(tmpgv); |
af8c498a | 2698 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 2699 | |
bf49b057 GS |
2700 | PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO); |
2701 | GvMULTI_on(PL_stderrgv); | |
2702 | io = GvIOp(PL_stderrgv); | |
af8c498a | 2703 | IoOFP(io) = IoIFP(io) = PerlIO_stderr(); |
adbc6bb1 | 2704 | tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV); |
a5f75d66 | 2705 | GvMULTI_on(tmpgv); |
af8c498a | 2706 | GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io); |
79072805 | 2707 | |
3280af22 | 2708 | PL_statname = NEWSV(66,0); /* last filename we did stat on */ |
ab821d7f | 2709 | |
3280af22 NIS |
2710 | if (!PL_osname) |
2711 | PL_osname = savepv(OSNAME); | |
79072805 | 2712 | } |
33b78306 | 2713 | |
76e3520e | 2714 | STATIC void |
cea2e8a9 | 2715 | S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env) |
33b78306 | 2716 | { |
a863c7d1 | 2717 | dTHR; |
79072805 LW |
2718 | char *s; |
2719 | SV *sv; | |
2720 | GV* tmpgv; | |
fe14fcc3 | 2721 | |
79072805 | 2722 | argc--,argv++; /* skip name of script */ |
3280af22 | 2723 | if (PL_doswitches) { |
79072805 LW |
2724 | for (; argc > 0 && **argv == '-'; argc--,argv++) { |
2725 | if (!argv[0][1]) | |
2726 | break; | |
2727 | if (argv[0][1] == '-') { | |
2728 | argc--,argv++; | |
2729 | break; | |
2730 | } | |
93a17b20 | 2731 | if (s = strchr(argv[0], '=')) { |
79072805 | 2732 | *s++ = '\0'; |
85e6fe83 | 2733 | sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s); |
79072805 LW |
2734 | } |
2735 | else | |
85e6fe83 | 2736 | sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1); |
fe14fcc3 | 2737 | } |
79072805 | 2738 | } |
3280af22 NIS |
2739 | PL_toptarget = NEWSV(0,0); |
2740 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
2741 | sv_setpvn(PL_toptarget, "", 0); | |
2742 | PL_bodytarget = NEWSV(0,0); | |
2743 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
2744 | sv_setpvn(PL_bodytarget, "", 0); | |
2745 | PL_formtarget = PL_bodytarget; | |
79072805 | 2746 | |
bbce6d69 | 2747 | TAINT; |
85e6fe83 | 2748 | if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) { |
3280af22 | 2749 | sv_setpv(GvSV(tmpgv),PL_origfilename); |
79072805 LW |
2750 | magicname("0", "0", 1); |
2751 | } | |
85e6fe83 | 2752 | if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV)) |
ed344e4f IZ |
2753 | #ifdef OS2 |
2754 | sv_setpv(GvSV(tmpgv), os2_execname()); | |
2755 | #else | |
3280af22 | 2756 | sv_setpv(GvSV(tmpgv),PL_origargv[0]); |
ed344e4f | 2757 | #endif |
3280af22 NIS |
2758 | if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) { |
2759 | GvMULTI_on(PL_argvgv); | |
2760 | (void)gv_AVadd(PL_argvgv); | |
2761 | av_clear(GvAVn(PL_argvgv)); | |
79072805 | 2762 | for (; argc > 0; argc--,argv++) { |
3280af22 | 2763 | av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0)); |
79072805 LW |
2764 | } |
2765 | } | |
3280af22 | 2766 | if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) { |
79072805 | 2767 | HV *hv; |
3280af22 NIS |
2768 | GvMULTI_on(PL_envgv); |
2769 | hv = GvHVn(PL_envgv); | |
2770 | hv_magic(hv, PL_envgv, 'E'); | |
4d2c4e07 | 2771 | #if !defined( VMS) && !defined(EPOC) /* VMS doesn't have environ array */ |
4633a7c4 LW |
2772 | /* Note that if the supplied env parameter is actually a copy |
2773 | of the global environ then it may now point to free'd memory | |
2774 | if the environment has been modified since. To avoid this | |
2775 | problem we treat env==NULL as meaning 'use the default' | |
2776 | */ | |
2777 | if (!env) | |
2778 | env = environ; | |
5aabfad6 | 2779 | if (env != environ) |
79072805 LW |
2780 | environ[0] = Nullch; |
2781 | for (; *env; env++) { | |
93a17b20 | 2782 | if (!(s = strchr(*env,'='))) |
79072805 LW |
2783 | continue; |
2784 | *s++ = '\0'; | |
60ce6247 | 2785 | #if defined(MSDOS) |
137443ea | 2786 | (void)strupr(*env); |
2787 | #endif | |
79072805 LW |
2788 | sv = newSVpv(s--,0); |
2789 | (void)hv_store(hv, *env, s - *env, sv, 0); | |
2790 | *s = '='; | |
3e3baf6d TB |
2791 | #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV) |
2792 | /* Sins of the RTL. See note in my_setenv(). */ | |
76e3520e | 2793 | (void)PerlEnv_putenv(savepv(*env)); |
3e3baf6d | 2794 | #endif |
fe14fcc3 | 2795 | } |
4550b24a | 2796 | #endif |
2797 | #ifdef DYNAMIC_ENV_FETCH | |
2798 | HvNAME(hv) = savepv(ENV_HV_NAME); | |
2799 | #endif | |
79072805 | 2800 | } |
bbce6d69 | 2801 | TAINT_NOT; |
85e6fe83 | 2802 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 | 2803 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
33b78306 | 2804 | } |
34de22dd | 2805 | |
76e3520e | 2806 | STATIC void |
cea2e8a9 | 2807 | S_init_perllib(pTHX) |
34de22dd | 2808 | { |
85e6fe83 | 2809 | char *s; |
3280af22 | 2810 | if (!PL_tainting) { |
552a7a9b | 2811 | #ifndef VMS |
76e3520e | 2812 | s = PerlEnv_getenv("PERL5LIB"); |
85e6fe83 | 2813 | if (s) |
774d564b | 2814 | incpush(s, TRUE); |
85e6fe83 | 2815 | else |
76e3520e | 2816 | incpush(PerlEnv_getenv("PERLLIB"), FALSE); |
552a7a9b | 2817 | #else /* VMS */ |
2818 | /* Treat PERL5?LIB as a possible search list logical name -- the | |
2819 | * "natural" VMS idiom for a Unix path string. We allow each | |
2820 | * element to be a set of |-separated directories for compatibility. | |
2821 | */ | |
2822 | char buf[256]; | |
2823 | int idx = 0; | |
2824 | if (my_trnlnm("PERL5LIB",buf,0)) | |
774d564b | 2825 | do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx)); |
552a7a9b | 2826 | else |
774d564b | 2827 | while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE); |
552a7a9b | 2828 | #endif /* VMS */ |
85e6fe83 | 2829 | } |
34de22dd | 2830 | |
c90c0ff4 | 2831 | /* Use the ~-expanded versions of APPLLIB (undocumented), |
dfe9444c | 2832 | ARCHLIB PRIVLIB SITEARCH and SITELIB |
df5cef82 | 2833 | */ |
4633a7c4 | 2834 | #ifdef APPLLIB_EXP |
43051805 | 2835 | incpush(APPLLIB_EXP, TRUE); |
16d20bd9 | 2836 | #endif |
4633a7c4 | 2837 | |
fed7345c | 2838 | #ifdef ARCHLIB_EXP |
774d564b | 2839 | incpush(ARCHLIB_EXP, FALSE); |
a0d0e21e | 2840 | #endif |
fed7345c AD |
2841 | #ifndef PRIVLIB_EXP |
2842 | #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl" | |
34de22dd | 2843 | #endif |
00dc2f4f GS |
2844 | #if defined(WIN32) |
2845 | incpush(PRIVLIB_EXP, TRUE); | |
2846 | #else | |
774d564b | 2847 | incpush(PRIVLIB_EXP, FALSE); |
00dc2f4f | 2848 | #endif |
4633a7c4 LW |
2849 | |
2850 | #ifdef SITEARCH_EXP | |
774d564b | 2851 | incpush(SITEARCH_EXP, FALSE); |
4633a7c4 LW |
2852 | #endif |
2853 | #ifdef SITELIB_EXP | |
00dc2f4f GS |
2854 | #if defined(WIN32) |
2855 | incpush(SITELIB_EXP, TRUE); | |
2856 | #else | |
774d564b | 2857 | incpush(SITELIB_EXP, FALSE); |
4633a7c4 | 2858 | #endif |
81c6dfba | 2859 | #endif |
a3635516 JH |
2860 | #if defined(PERL_VENDORLIB_EXP) |
2861 | #if defined(WIN32) | |
265f5c4a | 2862 | incpush(PERL_VENDORLIB_EXP, TRUE); |
a3635516 JH |
2863 | #else |
2864 | incpush(PERL_VENDORLIB_EXP, FALSE); | |
2865 | #endif | |
00dc2f4f | 2866 | #endif |
3280af22 | 2867 | if (!PL_tainting) |
774d564b | 2868 | incpush(".", FALSE); |
2869 | } | |
2870 | ||
2871 | #if defined(DOSISH) | |
2872 | # define PERLLIB_SEP ';' | |
2873 | #else | |
2874 | # if defined(VMS) | |
2875 | # define PERLLIB_SEP '|' | |
2876 | # else | |
2877 | # define PERLLIB_SEP ':' | |
2878 | # endif | |
2879 | #endif | |
2880 | #ifndef PERLLIB_MANGLE | |
2881 | # define PERLLIB_MANGLE(s,n) (s) | |
2882 | #endif | |
2883 | ||
76e3520e | 2884 | STATIC void |
cea2e8a9 | 2885 | S_incpush(pTHX_ char *p, int addsubdirs) |
774d564b | 2886 | { |
2887 | SV *subdir = Nullsv; | |
774d564b | 2888 | |
2889 | if (!p) | |
2890 | return; | |
2891 | ||
2892 | if (addsubdirs) { | |
00db4c45 | 2893 | subdir = sv_newmortal(); |
3280af22 NIS |
2894 | if (!PL_archpat_auto) { |
2895 | STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel) | |
774d564b | 2896 | + sizeof("//auto")); |
3280af22 NIS |
2897 | New(55, PL_archpat_auto, len, char); |
2898 | sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel); | |
aa689395 | 2899 | #ifdef VMS |
2900 | for (len = sizeof(ARCHNAME) + 2; | |
6b88bc9c GS |
2901 | PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++) |
2902 | if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_'; | |
aa689395 | 2903 | #endif |
774d564b | 2904 | } |
2905 | } | |
2906 | ||
2907 | /* Break at all separators */ | |
2908 | while (p && *p) { | |
8c52afec | 2909 | SV *libdir = NEWSV(55,0); |
774d564b | 2910 | char *s; |
2911 | ||
2912 | /* skip any consecutive separators */ | |
2913 | while ( *p == PERLLIB_SEP ) { | |
2914 | /* Uncomment the next line for PATH semantics */ | |
79cb57f6 | 2915 | /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */ |
774d564b | 2916 | p++; |
2917 | } | |
2918 | ||
2919 | if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) { | |
2920 | sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)), | |
2921 | (STRLEN)(s - p)); | |
2922 | p = s + 1; | |
2923 | } | |
2924 | else { | |
2925 | sv_setpv(libdir, PERLLIB_MANGLE(p, 0)); | |
2926 | p = Nullch; /* break out */ | |
2927 | } | |
2928 | ||
2929 | /* | |
2930 | * BEFORE pushing libdir onto @INC we may first push version- and | |
2931 | * archname-specific sub-directories. | |
2932 | */ | |
2933 | if (addsubdirs) { | |
2934 | struct stat tmpstatbuf; | |
aa689395 | 2935 | #ifdef VMS |
2936 | char *unix; | |
2937 | STRLEN len; | |
774d564b | 2938 | |
2d8e6c8d | 2939 | if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) { |
aa689395 | 2940 | len = strlen(unix); |
2941 | while (unix[len-1] == '/') len--; /* Cosmetic */ | |
2942 | sv_usepvn(libdir,unix,len); | |
2943 | } | |
2944 | else | |
bf49b057 | 2945 | PerlIO_printf(Perl_error_log, |
aa689395 | 2946 | "Failed to unixify @INC element \"%s\"\n", |
2d8e6c8d | 2947 | SvPV(libdir,len)); |
aa689395 | 2948 | #endif |
4fdae800 | 2949 | /* .../archname/version if -d .../archname/version/auto */ |
774d564b | 2950 | sv_setsv(subdir, libdir); |
3280af22 | 2951 | sv_catpv(subdir, PL_archpat_auto); |
76e3520e | 2952 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b | 2953 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 | 2954 | av_push(GvAVn(PL_incgv), |
79cb57f6 | 2955 | newSVpvn(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
774d564b | 2956 | |
4fdae800 | 2957 | /* .../archname if -d .../archname/auto */ |
774d564b | 2958 | sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME), |
3280af22 | 2959 | strlen(PL_patchlevel) + 1, "", 0); |
76e3520e | 2960 | if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 && |
774d564b | 2961 | S_ISDIR(tmpstatbuf.st_mode)) |
3280af22 | 2962 | av_push(GvAVn(PL_incgv), |
79cb57f6 | 2963 | newSVpvn(SvPVX(subdir), SvCUR(subdir) - sizeof "auto")); |
774d564b | 2964 | } |
2965 | ||
2966 | /* finally push this lib directory on the end of @INC */ | |
3280af22 | 2967 | av_push(GvAVn(PL_incgv), libdir); |
774d564b | 2968 | } |
34de22dd | 2969 | } |
93a17b20 | 2970 | |
199100c8 | 2971 | #ifdef USE_THREADS |
76e3520e | 2972 | STATIC struct perl_thread * |
cea2e8a9 | 2973 | S_init_main_thread(pTHX) |
199100c8 | 2974 | { |
c5be433b | 2975 | #if !defined(PERL_IMPLICIT_CONTEXT) |
52e1cb5e | 2976 | struct perl_thread *thr; |
cea2e8a9 | 2977 | #endif |
199100c8 MB |
2978 | XPV *xpv; |
2979 | ||
52e1cb5e | 2980 | Newz(53, thr, 1, struct perl_thread); |
533c011a | 2981 | PL_curcop = &PL_compiling; |
c5be433b | 2982 | thr->interp = PERL_GET_INTERP; |
199100c8 | 2983 | thr->cvcache = newHV(); |
54b9620d | 2984 | thr->threadsv = newAV(); |
940cb80d | 2985 | /* thr->threadsvp is set when find_threadsv is called */ |
199100c8 MB |
2986 | thr->specific = newAV(); |
2987 | thr->flags = THRf_R_JOINABLE; | |
2988 | MUTEX_INIT(&thr->mutex); | |
2989 | /* Handcraft thrsv similarly to mess_sv */ | |
533c011a | 2990 | New(53, PL_thrsv, 1, SV); |
199100c8 | 2991 | Newz(53, xpv, 1, XPV); |
533c011a NIS |
2992 | SvFLAGS(PL_thrsv) = SVt_PV; |
2993 | SvANY(PL_thrsv) = (void*)xpv; | |
2994 | SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */ | |
2995 | SvPVX(PL_thrsv) = (char*)thr; | |
2996 | SvCUR_set(PL_thrsv, sizeof(thr)); | |
2997 | SvLEN_set(PL_thrsv, sizeof(thr)); | |
2998 | *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */ | |
2999 | thr->oursv = PL_thrsv; | |
3000 | PL_chopset = " \n-"; | |
3967c732 | 3001 | PL_dumpindent = 4; |
533c011a NIS |
3002 | |
3003 | MUTEX_LOCK(&PL_threads_mutex); | |
3004 | PL_nthreads++; | |
199100c8 MB |
3005 | thr->tid = 0; |
3006 | thr->next = thr; | |
3007 | thr->prev = thr; | |
533c011a | 3008 | MUTEX_UNLOCK(&PL_threads_mutex); |
199100c8 | 3009 | |
4b026b9e | 3010 | #ifdef HAVE_THREAD_INTERN |
4f63d024 | 3011 | Perl_init_thread_intern(thr); |
235db74f GS |
3012 | #endif |
3013 | ||
3014 | #ifdef SET_THREAD_SELF | |
3015 | SET_THREAD_SELF(thr); | |
199100c8 MB |
3016 | #else |
3017 | thr->self = pthread_self(); | |
235db74f | 3018 | #endif /* SET_THREAD_SELF */ |
199100c8 MB |
3019 | SET_THR(thr); |
3020 | ||
3021 | /* | |
3022 | * These must come after the SET_THR because sv_setpvn does | |
3023 | * SvTAINT and the taint fields require dTHR. | |
3024 | */ | |
533c011a NIS |
3025 | PL_toptarget = NEWSV(0,0); |
3026 | sv_upgrade(PL_toptarget, SVt_PVFM); | |
3027 | sv_setpvn(PL_toptarget, "", 0); | |
3028 | PL_bodytarget = NEWSV(0,0); | |
3029 | sv_upgrade(PL_bodytarget, SVt_PVFM); | |
3030 | sv_setpvn(PL_bodytarget, "", 0); | |
3031 | PL_formtarget = PL_bodytarget; | |
79cb57f6 | 3032 | thr->errsv = newSVpvn("", 0); |
78857c3c | 3033 | (void) find_threadsv("@"); /* Ensure $@ is initialised early */ |
5c0ca799 | 3034 | |
533c011a | 3035 | PL_maxscream = -1; |
0b94c7bb GS |
3036 | PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp); |
3037 | PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags); | |
3038 | PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start); | |
3039 | PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string); | |
3040 | PL_regfree = MEMBER_TO_FPTR(Perl_pregfree); | |
533c011a NIS |
3041 | PL_regindent = 0; |
3042 | PL_reginterp_cnt = 0; | |
5c0ca799 | 3043 | |
199100c8 MB |
3044 | return thr; |
3045 | } | |
3046 | #endif /* USE_THREADS */ | |
3047 | ||
93a17b20 | 3048 | void |
864dbfa3 | 3049 | Perl_call_list(pTHX_ I32 oldscope, AV *paramList) |
93a17b20 | 3050 | { |
11343788 | 3051 | dTHR; |
312caa8e | 3052 | SV *atsv = ERRSV; |
3280af22 | 3053 | line_t oldline = PL_curcop->cop_line; |
312caa8e | 3054 | CV *cv; |
22921e25 | 3055 | STRLEN len; |
6224f72b | 3056 | int ret; |
db36c5a1 | 3057 | dJMPENV; |
93a17b20 | 3058 | |
76e3520e | 3059 | while (AvFILL(paramList) >= 0) { |
312caa8e | 3060 | cv = (CV*)av_shift(paramList); |
8990e307 | 3061 | SAVEFREESV(cv); |
db36c5a1 | 3062 | CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_call_list_body), cv); |
6224f72b | 3063 | switch (ret) { |
312caa8e CS |
3064 | case 0: |
3065 | (void)SvPV(atsv, len); | |
3066 | if (len) { | |
3067 | PL_curcop = &PL_compiling; | |
3068 | PL_curcop->cop_line = oldline; | |
3069 | if (paramList == PL_beginav) | |
3070 | sv_catpv(atsv, "BEGIN failed--compilation aborted"); | |
3071 | else | |
3072 | sv_catpv(atsv, "END failed--cleanup aborted"); | |
3073 | while (PL_scopestack_ix > oldscope) | |
3074 | LEAVE; | |
cea2e8a9 | 3075 | Perl_croak(aTHX_ "%s", SvPVX(atsv)); |
a0d0e21e | 3076 | } |
85e6fe83 | 3077 | break; |
6224f72b | 3078 | case 1: |
f86702cc | 3079 | STATUS_ALL_FAILURE; |
85e6fe83 | 3080 | /* FALL THROUGH */ |
6224f72b | 3081 | case 2: |
85e6fe83 | 3082 | /* my_exit() was called */ |
3280af22 | 3083 | while (PL_scopestack_ix > oldscope) |
2ae324a7 | 3084 | LEAVE; |
84902520 | 3085 | FREETMPS; |
3280af22 | 3086 | PL_curstash = PL_defstash; |
865be832 | 3087 | if (PL_endav && !PL_minus_c) |
3280af22 | 3088 | call_list(oldscope, PL_endav); |
3280af22 NIS |
3089 | PL_curcop = &PL_compiling; |
3090 | PL_curcop->cop_line = oldline; | |
3091 | if (PL_statusvalue) { | |
3092 | if (paramList == PL_beginav) | |
cea2e8a9 | 3093 | Perl_croak(aTHX_ "BEGIN failed--compilation aborted"); |
85e6fe83 | 3094 | else |
cea2e8a9 | 3095 | Perl_croak(aTHX_ "END failed--cleanup aborted"); |
85e6fe83 | 3096 | } |
f86702cc | 3097 | my_exit_jump(); |
85e6fe83 | 3098 | /* NOTREACHED */ |
6224f72b | 3099 | case 3: |
312caa8e CS |
3100 | if (PL_restartop) { |
3101 | PL_curcop = &PL_compiling; | |
3102 | PL_curcop->cop_line = oldline; | |
3103 | JMPENV_JUMP(3); | |
85e6fe83 | 3104 | } |
bf49b057 | 3105 | PerlIO_printf(Perl_error_log, "panic: restartop\n"); |
312caa8e CS |
3106 | FREETMPS; |
3107 | break; | |
8990e307 | 3108 | } |
93a17b20 | 3109 | } |
93a17b20 | 3110 | } |
93a17b20 | 3111 | |
312caa8e | 3112 | STATIC void * |
cea2e8a9 | 3113 | S_call_list_body(pTHX_ va_list args) |
312caa8e CS |
3114 | { |
3115 | dTHR; | |
3116 | CV *cv = va_arg(args, CV*); | |
3117 | ||
3118 | PUSHMARK(PL_stack_sp); | |
864dbfa3 | 3119 | call_sv((SV*)cv, G_EVAL|G_DISCARD); |
312caa8e CS |
3120 | return NULL; |
3121 | } | |
3122 | ||
f86702cc | 3123 | void |
864dbfa3 | 3124 | Perl_my_exit(pTHX_ U32 status) |
f86702cc | 3125 | { |
5dc0d613 MB |
3126 | dTHR; |
3127 | ||
8b73bbec | 3128 | DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n", |
a863c7d1 | 3129 | thr, (unsigned long) status)); |
f86702cc | 3130 | switch (status) { |
3131 | case 0: | |
3132 | STATUS_ALL_SUCCESS; | |
3133 | break; | |
3134 | case 1: | |
3135 | STATUS_ALL_FAILURE; | |
3136 | break; | |
3137 | default: | |
3138 | STATUS_NATIVE_SET(status); | |
3139 | break; | |
3140 | } | |
3141 | my_exit_jump(); | |
3142 | } | |
3143 | ||
3144 | void | |
864dbfa3 | 3145 | Perl_my_failure_exit(pTHX) |
f86702cc | 3146 | { |
3147 | #ifdef VMS | |
3148 | if (vaxc$errno & 1) { | |
4fdae800 | 3149 | if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */ |
3150 | STATUS_NATIVE_SET(44); | |
f86702cc | 3151 | } |
3152 | else { | |
ff0cee69 | 3153 | if (!vaxc$errno && errno) /* unlikely */ |
4fdae800 | 3154 | STATUS_NATIVE_SET(44); |
f86702cc | 3155 | else |
4fdae800 | 3156 | STATUS_NATIVE_SET(vaxc$errno); |
f86702cc | 3157 | } |
3158 | #else | |
9b599b2a | 3159 | int exitstatus; |
f86702cc | 3160 | if (errno & 255) |
3161 | STATUS_POSIX_SET(errno); | |
9b599b2a GS |
3162 | else { |
3163 | exitstatus = STATUS_POSIX >> 8; | |
3164 | if (exitstatus & 255) | |
3165 | STATUS_POSIX_SET(exitstatus); | |
3166 | else | |
3167 | STATUS_POSIX_SET(255); | |
3168 | } | |
f86702cc | 3169 | #endif |
3170 | my_exit_jump(); | |
93a17b20 LW |
3171 | } |
3172 | ||
76e3520e | 3173 | STATIC void |
cea2e8a9 | 3174 | S_my_exit_jump(pTHX) |
f86702cc | 3175 | { |
de616352 | 3176 | dTHR; |
c09156bb | 3177 | register PERL_CONTEXT *cx; |
f86702cc | 3178 | I32 gimme; |
3179 | SV **newsp; | |
3180 | ||
3280af22 NIS |
3181 | if (PL_e_script) { |
3182 | SvREFCNT_dec(PL_e_script); | |
3183 | PL_e_script = Nullsv; | |
f86702cc | 3184 | } |
3185 | ||
3280af22 | 3186 | POPSTACK_TO(PL_mainstack); |
f86702cc | 3187 | if (cxstack_ix >= 0) { |
3188 | if (cxstack_ix > 0) | |
3189 | dounwind(0); | |
3280af22 | 3190 | POPBLOCK(cx,PL_curpm); |
f86702cc | 3191 | LEAVE; |
3192 | } | |
ff0cee69 | 3193 | |
6224f72b | 3194 | JMPENV_JUMP(2); |
f86702cc | 3195 | } |
873ef191 | 3196 | |
7a5f8e82 DL |
3197 | #ifdef PERL_OBJECT |
3198 | #define NO_XSLOCKS | |
873ef191 | 3199 | #include "XSUB.h" |
51371543 | 3200 | #endif |
873ef191 | 3201 | |
0cb96387 GS |
3202 | static I32 |
3203 | read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen) | |
873ef191 GS |
3204 | { |
3205 | char *p, *nl; | |
3280af22 | 3206 | p = SvPVX(PL_e_script); |
873ef191 | 3207 | nl = strchr(p, '\n'); |
3280af22 | 3208 | nl = (nl) ? nl+1 : SvEND(PL_e_script); |
7dfe3f66 | 3209 | if (nl-p == 0) { |
0cb96387 | 3210 | filter_del(read_e_script); |
873ef191 | 3211 | return 0; |
7dfe3f66 | 3212 | } |
873ef191 | 3213 | sv_catpvn(buf_sv, p, nl-p); |
3280af22 | 3214 | sv_chop(PL_e_script, nl); |
873ef191 GS |
3215 | return 1; |
3216 | } | |
3217 | ||
1163b5c4 | 3218 |