3 * Copyright (c) 1987-2000 Larry Wall
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.
11 * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
15 #define PERL_IN_PERL_C
17 #include "patchlevel.h" /* for local_patches */
19 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
24 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
25 char *getenv (char *); /* Usually in <stdlib.h> */
28 static I32 read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen);
36 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
43 #define perl_construct Perl_construct
44 #define perl_parse Perl_parse
45 #define perl_run Perl_run
46 #define perl_destruct Perl_destruct
47 #define perl_free Perl_free
50 #ifdef PERL_IMPLICIT_SYS
52 perl_alloc_using(struct IPerlMem* ipM, struct IPerlMem* ipMS,
53 struct IPerlMem* ipMP, struct IPerlEnv* ipE,
54 struct IPerlStdIO* ipStd, struct IPerlLIO* ipLIO,
55 struct IPerlDir* ipD, struct IPerlSock* ipS,
56 struct IPerlProc* ipP)
58 PerlInterpreter *my_perl;
60 my_perl = (PerlInterpreter*)new(ipM) CPerlObj(ipM, ipMS, ipMP, ipE, ipStd,
61 ipLIO, ipD, ipS, ipP);
62 PERL_SET_INTERP(my_perl);
64 /* New() needs interpreter, so call malloc() instead */
65 my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
66 PERL_SET_INTERP(my_perl);
67 Zero(my_perl, 1, PerlInterpreter);
84 =for apidoc perl_alloc
86 Allocates a new Perl interpreter. See L<perlembed>.
94 PerlInterpreter *my_perl;
96 /* New() needs interpreter, so call malloc() instead */
97 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
98 PERL_SET_INTERP(my_perl);
99 Zero(my_perl, 1, PerlInterpreter);
102 #endif /* PERL_IMPLICIT_SYS */
105 =for apidoc perl_construct
107 Initializes a new Perl interpreter. See L<perlembed>.
113 perl_construct(pTHXx)
118 struct perl_thread *thr = NULL;
119 #endif /* FAKE_THREADS */
120 #endif /* USE_THREADS */
124 PL_perl_destruct_level = 1;
126 if (PL_perl_destruct_level > 0)
130 /* Init the real globals (and main thread)? */
134 #ifdef ALLOC_THREAD_KEY
137 if (pthread_key_create(&PL_thr_key, 0))
138 Perl_croak(aTHX_ "panic: pthread_key_create");
140 MUTEX_INIT(&PL_sv_mutex);
142 * Safe to use basic SV functions from now on (though
143 * not things like mortals or tainting yet).
145 MUTEX_INIT(&PL_eval_mutex);
146 COND_INIT(&PL_eval_cond);
147 MUTEX_INIT(&PL_threads_mutex);
148 COND_INIT(&PL_nthreads_cond);
149 #ifdef EMULATE_ATOMIC_REFCOUNTS
150 MUTEX_INIT(&PL_svref_mutex);
151 #endif /* EMULATE_ATOMIC_REFCOUNTS */
153 MUTEX_INIT(&PL_cred_mutex);
155 thr = init_main_thread();
156 #endif /* USE_THREADS */
158 #ifdef PERL_FLEXIBLE_EXCEPTIONS
159 PL_protect = MEMBER_TO_FPTR(Perl_default_protect); /* for exceptions */
162 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
164 PL_linestr = NEWSV(65,79);
165 sv_upgrade(PL_linestr,SVt_PVIV);
167 if (!SvREADONLY(&PL_sv_undef)) {
168 /* set read-only and try to insure than we wont see REFCNT==0
171 SvREADONLY_on(&PL_sv_undef);
172 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
174 sv_setpv(&PL_sv_no,PL_No);
176 SvREADONLY_on(&PL_sv_no);
177 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
179 sv_setpv(&PL_sv_yes,PL_Yes);
181 SvREADONLY_on(&PL_sv_yes);
182 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
187 /* PL_sighandlerp = sighandler; */
189 PL_sighandlerp = Perl_sighandler;
191 PL_pidstatus = newHV();
195 * There is no way we can refer to them from Perl so close them to save
196 * space. The other alternative would be to provide STDAUX and STDPRN
199 (void)fclose(stdaux);
200 (void)fclose(stdprn);
204 PL_nrs = newSVpvn("\n", 1);
205 PL_rs = SvREFCNT_inc(PL_nrs);
210 PL_lex_state = LEX_NOTPARSING;
216 SET_NUMERIC_STANDARD();
220 PL_patchlevel = NEWSV(0,4);
221 SvUPGRADE(PL_patchlevel, SVt_PVNV);
222 if (PERL_REVISION > 127 || PERL_VERSION > 127 || PERL_SUBVERSION > 127)
223 SvGROW(PL_patchlevel,24);
224 s = (U8*)SvPVX(PL_patchlevel);
225 s = uv_to_utf8(s, (UV)PERL_REVISION);
226 s = uv_to_utf8(s, (UV)PERL_VERSION);
227 s = uv_to_utf8(s, (UV)PERL_SUBVERSION);
229 SvCUR_set(PL_patchlevel, s - (U8*)SvPVX(PL_patchlevel));
230 SvPOK_on(PL_patchlevel);
231 SvNVX(PL_patchlevel) = (NV)PERL_REVISION
232 + ((NV)PERL_VERSION / (NV)1000)
233 #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0
234 + ((NV)PERL_SUBVERSION / (NV)1000000)
237 SvNOK_on(PL_patchlevel); /* dual valued */
238 SvUTF8_on(PL_patchlevel);
239 SvREADONLY_on(PL_patchlevel);
242 #if defined(LOCAL_PATCH_COUNT)
243 PL_localpatches = local_patches; /* For possible -v */
246 PerlIO_init(); /* Hook to IO system */
248 PL_fdpid = newAV(); /* for remembering popen pids by fd */
249 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
255 =for apidoc perl_destruct
257 Shuts down a Perl interpreter. See L<perlembed>.
266 int destruct_level; /* 0=none, 1=full, 2=full with checks */
272 #endif /* USE_THREADS */
274 /* wait for all pseudo-forked children to finish */
275 PERL_WAIT_FOR_CHILDREN;
279 /* Pass 1 on any remaining threads: detach joinables, join zombies */
281 MUTEX_LOCK(&PL_threads_mutex);
282 DEBUG_S(PerlIO_printf(Perl_debug_log,
283 "perl_destruct: waiting for %d threads...\n",
285 for (t = thr->next; t != thr; t = t->next) {
286 MUTEX_LOCK(&t->mutex);
287 switch (ThrSTATE(t)) {
290 DEBUG_S(PerlIO_printf(Perl_debug_log,
291 "perl_destruct: joining zombie %p\n", t));
292 ThrSETSTATE(t, THRf_DEAD);
293 MUTEX_UNLOCK(&t->mutex);
296 * The SvREFCNT_dec below may take a long time (e.g. av
297 * may contain an object scalar whose destructor gets
298 * called) so we have to unlock threads_mutex and start
301 MUTEX_UNLOCK(&PL_threads_mutex);
303 SvREFCNT_dec((SV*)av);
304 DEBUG_S(PerlIO_printf(Perl_debug_log,
305 "perl_destruct: joined zombie %p OK\n", t));
307 case THRf_R_JOINABLE:
308 DEBUG_S(PerlIO_printf(Perl_debug_log,
309 "perl_destruct: detaching thread %p\n", t));
310 ThrSETSTATE(t, THRf_R_DETACHED);
312 * We unlock threads_mutex and t->mutex in the opposite order
313 * from which we locked them just so that DETACH won't
314 * deadlock if it panics. It's only a breach of good style
315 * not a bug since they are unlocks not locks.
317 MUTEX_UNLOCK(&PL_threads_mutex);
319 MUTEX_UNLOCK(&t->mutex);
322 DEBUG_S(PerlIO_printf(Perl_debug_log,
323 "perl_destruct: ignoring %p (state %u)\n",
325 MUTEX_UNLOCK(&t->mutex);
326 /* fall through and out */
329 /* We leave the above "Pass 1" loop with threads_mutex still locked */
331 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
332 while (PL_nthreads > 1)
334 DEBUG_S(PerlIO_printf(Perl_debug_log,
335 "perl_destruct: final wait for %d threads\n",
337 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
339 /* At this point, we're the last thread */
340 MUTEX_UNLOCK(&PL_threads_mutex);
341 DEBUG_S(PerlIO_printf(Perl_debug_log, "perl_destruct: armageddon has arrived\n"));
342 MUTEX_DESTROY(&PL_threads_mutex);
343 COND_DESTROY(&PL_nthreads_cond);
344 #endif /* !defined(FAKE_THREADS) */
345 #endif /* USE_THREADS */
347 destruct_level = PL_perl_destruct_level;
351 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
353 if (destruct_level < i)
362 /* We must account for everything. */
364 /* Destroy the main CV and syntax tree */
366 PL_curpad = AvARRAY(PL_comppad);
367 op_free(PL_main_root);
368 PL_main_root = Nullop;
370 PL_curcop = &PL_compiling;
371 PL_main_start = Nullop;
372 SvREFCNT_dec(PL_main_cv);
376 if (PL_sv_objcount) {
378 * Try to destruct global references. We do this first so that the
379 * destructors and destructees still exist. Some sv's might remain.
380 * Non-referenced objects are on their own.
385 /* unhook hooks which will soon be, or use, destroyed data */
386 SvREFCNT_dec(PL_warnhook);
387 PL_warnhook = Nullsv;
388 SvREFCNT_dec(PL_diehook);
391 /* call exit list functions */
392 while (PL_exitlistlen-- > 0)
393 PL_exitlist[PL_exitlistlen].fn(aTHXo_ PL_exitlist[PL_exitlistlen].ptr);
395 Safefree(PL_exitlist);
397 if (destruct_level == 0){
399 DEBUG_P(debprofdump());
401 /* The exit() function will do everything that needs doing. */
405 /* loosen bonds of global variables */
408 (void)PerlIO_close(PL_rsfp);
412 /* Filters for program text */
413 SvREFCNT_dec(PL_rsfp_filters);
414 PL_rsfp_filters = Nullav;
417 PL_preprocess = FALSE;
423 PL_doswitches = FALSE;
424 PL_dowarn = G_WARN_OFF;
425 PL_doextract = FALSE;
426 PL_sawampersand = FALSE; /* must save all match strings */
429 Safefree(PL_inplace);
431 SvREFCNT_dec(PL_patchlevel);
434 SvREFCNT_dec(PL_e_script);
435 PL_e_script = Nullsv;
438 /* magical thingies */
440 Safefree(PL_ofs); /* $, */
443 Safefree(PL_ors); /* $\ */
446 SvREFCNT_dec(PL_rs); /* $/ */
449 SvREFCNT_dec(PL_nrs); /* $/ helper */
452 PL_multiline = 0; /* $* */
453 Safefree(PL_osname); /* $^O */
456 SvREFCNT_dec(PL_statname);
457 PL_statname = Nullsv;
460 /* defgv, aka *_ should be taken care of elsewhere */
462 /* clean up after study() */
463 SvREFCNT_dec(PL_lastscream);
464 PL_lastscream = Nullsv;
465 Safefree(PL_screamfirst);
467 Safefree(PL_screamnext);
471 Safefree(PL_efloatbuf);
472 PL_efloatbuf = Nullch;
475 /* startup and shutdown function lists */
476 SvREFCNT_dec(PL_beginav);
477 SvREFCNT_dec(PL_endav);
478 SvREFCNT_dec(PL_checkav);
479 SvREFCNT_dec(PL_initav);
485 /* shortcuts just get cleared */
491 PL_argvoutgv = Nullgv;
493 PL_stderrgv = Nullgv;
494 PL_last_in_gv = Nullgv;
496 PL_debstash = Nullhv;
498 /* reset so print() ends up where we expect */
501 SvREFCNT_dec(PL_argvout_stack);
502 PL_argvout_stack = Nullav;
504 SvREFCNT_dec(PL_modglobal);
505 PL_modglobal = Nullhv;
506 SvREFCNT_dec(PL_preambleav);
507 PL_preambleav = Nullav;
508 SvREFCNT_dec(PL_subname);
510 SvREFCNT_dec(PL_linestr);
512 SvREFCNT_dec(PL_pidstatus);
513 PL_pidstatus = Nullhv;
514 SvREFCNT_dec(PL_toptarget);
515 PL_toptarget = Nullsv;
516 SvREFCNT_dec(PL_bodytarget);
517 PL_bodytarget = Nullsv;
518 PL_formtarget = Nullsv;
520 /* free locale stuff */
521 #ifdef USE_LOCALE_COLLATE
522 Safefree(PL_collation_name);
523 PL_collation_name = Nullch;
526 #ifdef USE_LOCALE_NUMERIC
527 Safefree(PL_numeric_name);
528 PL_numeric_name = Nullch;
531 /* clear utf8 character classes */
532 SvREFCNT_dec(PL_utf8_alnum);
533 SvREFCNT_dec(PL_utf8_alnumc);
534 SvREFCNT_dec(PL_utf8_ascii);
535 SvREFCNT_dec(PL_utf8_alpha);
536 SvREFCNT_dec(PL_utf8_space);
537 SvREFCNT_dec(PL_utf8_cntrl);
538 SvREFCNT_dec(PL_utf8_graph);
539 SvREFCNT_dec(PL_utf8_digit);
540 SvREFCNT_dec(PL_utf8_upper);
541 SvREFCNT_dec(PL_utf8_lower);
542 SvREFCNT_dec(PL_utf8_print);
543 SvREFCNT_dec(PL_utf8_punct);
544 SvREFCNT_dec(PL_utf8_xdigit);
545 SvREFCNT_dec(PL_utf8_mark);
546 SvREFCNT_dec(PL_utf8_toupper);
547 SvREFCNT_dec(PL_utf8_tolower);
548 PL_utf8_alnum = Nullsv;
549 PL_utf8_alnumc = Nullsv;
550 PL_utf8_ascii = Nullsv;
551 PL_utf8_alpha = Nullsv;
552 PL_utf8_space = Nullsv;
553 PL_utf8_cntrl = Nullsv;
554 PL_utf8_graph = Nullsv;
555 PL_utf8_digit = Nullsv;
556 PL_utf8_upper = Nullsv;
557 PL_utf8_lower = Nullsv;
558 PL_utf8_print = Nullsv;
559 PL_utf8_punct = Nullsv;
560 PL_utf8_xdigit = Nullsv;
561 PL_utf8_mark = Nullsv;
562 PL_utf8_toupper = Nullsv;
563 PL_utf8_totitle = Nullsv;
564 PL_utf8_tolower = Nullsv;
566 if (!specialWARN(PL_compiling.cop_warnings))
567 SvREFCNT_dec(PL_compiling.cop_warnings);
568 PL_compiling.cop_warnings = Nullsv;
570 /* Prepare to destruct main symbol table. */
575 SvREFCNT_dec(PL_curstname);
576 PL_curstname = Nullsv;
578 /* clear queued errors */
579 SvREFCNT_dec(PL_errors);
583 if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) {
584 if (PL_scopestack_ix != 0)
585 Perl_warner(aTHX_ WARN_INTERNAL,
586 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
587 (long)PL_scopestack_ix);
588 if (PL_savestack_ix != 0)
589 Perl_warner(aTHX_ WARN_INTERNAL,
590 "Unbalanced saves: %ld more saves than restores\n",
591 (long)PL_savestack_ix);
592 if (PL_tmps_floor != -1)
593 Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced tmps: %ld more allocs than frees\n",
594 (long)PL_tmps_floor + 1);
595 if (cxstack_ix != -1)
596 Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced context: %ld more PUSHes than POPs\n",
597 (long)cxstack_ix + 1);
600 /* Now absolutely destruct everything, somehow or other, loops or no. */
602 SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */
603 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
604 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
605 last_sv_count = PL_sv_count;
608 SvFLAGS(PL_fdpid) &= ~SVTYPEMASK;
609 SvFLAGS(PL_fdpid) |= SVt_PVAV;
610 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
611 SvFLAGS(PL_strtab) |= SVt_PVHV;
613 AvREAL_off(PL_fdpid); /* no surviving entries */
614 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
617 /* Destruct the global string table. */
619 /* Yell and reset the HeVAL() slots that are still holding refcounts,
620 * so that sv_free() won't fail on them.
628 max = HvMAX(PL_strtab);
629 array = HvARRAY(PL_strtab);
632 if (hent && ckWARN_d(WARN_INTERNAL)) {
633 Perl_warner(aTHX_ WARN_INTERNAL,
634 "Unbalanced string table refcount: (%d) for \"%s\"",
635 HeVAL(hent) - Nullsv, HeKEY(hent));
636 HeVAL(hent) = Nullsv;
646 SvREFCNT_dec(PL_strtab);
648 /* free special SVs */
650 SvREFCNT(&PL_sv_yes) = 0;
651 sv_clear(&PL_sv_yes);
652 SvANY(&PL_sv_yes) = NULL;
654 SvREFCNT(&PL_sv_no) = 0;
656 SvANY(&PL_sv_no) = NULL;
658 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
659 Perl_warner(aTHX_ WARN_INTERNAL,"Scalars leaked: %ld\n", (long)PL_sv_count);
663 /* No SVs have survived, need to clean out */
664 Safefree(PL_origfilename);
665 Safefree(PL_reg_start_tmp);
667 Safefree(PL_reg_curpm);
668 Safefree(PL_reg_poscache);
669 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
670 Safefree(PL_op_mask);
672 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
674 DEBUG_P(debprofdump());
676 MUTEX_DESTROY(&PL_strtab_mutex);
677 MUTEX_DESTROY(&PL_sv_mutex);
678 MUTEX_DESTROY(&PL_eval_mutex);
679 MUTEX_DESTROY(&PL_cred_mutex);
680 COND_DESTROY(&PL_eval_cond);
681 #ifdef EMULATE_ATOMIC_REFCOUNTS
682 MUTEX_DESTROY(&PL_svref_mutex);
683 #endif /* EMULATE_ATOMIC_REFCOUNTS */
685 /* As the penultimate thing, free the non-arena SV for thrsv */
686 Safefree(SvPVX(PL_thrsv));
687 Safefree(SvANY(PL_thrsv));
690 #endif /* USE_THREADS */
692 /* As the absolutely last thing, free the non-arena SV for mess() */
695 /* it could have accumulated taint magic */
696 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
699 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
700 moremagic = mg->mg_moremagic;
701 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
702 Safefree(mg->mg_ptr);
706 /* we know that type >= SVt_PV */
707 SvOOK_off(PL_mess_sv);
708 Safefree(SvPVX(PL_mess_sv));
709 Safefree(SvANY(PL_mess_sv));
710 Safefree(PL_mess_sv);
716 =for apidoc perl_free
718 Releases a Perl interpreter. See L<perlembed>.
726 #if defined(PERL_OBJECT)
734 Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
736 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
737 PL_exitlist[PL_exitlistlen].fn = fn;
738 PL_exitlist[PL_exitlistlen].ptr = ptr;
743 =for apidoc perl_parse
745 Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
751 perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
761 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
764 Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\
765 setuid perl scripts securely.\n");
769 #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__))
770 _dyld_lookup_and_bind
771 ("__environ", (unsigned long *) &environ_pointer, NULL);
776 #ifndef VMS /* VMS doesn't have environ array */
777 PL_origenviron = environ;
782 /* Come here if running an undumped a.out. */
784 PL_origfilename = savepv(argv[0]);
785 PL_do_undump = FALSE;
786 cxstack_ix = -1; /* start label stack again */
788 init_postdump_symbols(argc,argv,env);
793 PL_curpad = AvARRAY(PL_comppad);
794 op_free(PL_main_root);
795 PL_main_root = Nullop;
797 PL_main_start = Nullop;
798 SvREFCNT_dec(PL_main_cv);
802 oldscope = PL_scopestack_ix;
803 PL_dowarn = G_WARN_OFF;
805 #ifdef PERL_FLEXIBLE_EXCEPTIONS
806 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit);
812 #ifndef PERL_FLEXIBLE_EXCEPTIONS
813 parse_body(env,xsinit);
816 call_list(oldscope, PL_checkav);
823 /* my_exit() was called */
824 while (PL_scopestack_ix > oldscope)
827 PL_curstash = PL_defstash;
829 call_list(oldscope, PL_checkav);
830 ret = STATUS_NATIVE_EXPORT;
833 PerlIO_printf(Perl_error_log, "panic: top_env\n");
841 #ifdef PERL_FLEXIBLE_EXCEPTIONS
843 S_vparse_body(pTHX_ va_list args)
845 char **env = va_arg(args, char**);
846 XSINIT_t xsinit = va_arg(args, XSINIT_t);
848 return parse_body(env, xsinit);
853 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
856 int argc = PL_origargc;
857 char **argv = PL_origargv;
858 char *scriptname = NULL;
860 VOL bool dosearch = FALSE;
865 char *cddir = Nullch;
867 sv_setpvn(PL_linestr,"",0);
868 sv = newSVpvn("",0); /* first used for -I flags */
872 for (argc--,argv++; argc > 0; argc--,argv++) {
873 if (argv[0][0] != '-' || !argv[0][1])
877 validarg = " PHOOEY ";
884 #ifndef PERL_STRICT_CR
909 if (s = moreswitches(s))
919 if (PL_euid != PL_uid || PL_egid != PL_gid)
920 Perl_croak(aTHX_ "No -e allowed in setuid scripts");
922 PL_e_script = newSVpvn("",0);
923 filter_add(read_e_script, NULL);
926 sv_catpv(PL_e_script, s);
928 sv_catpv(PL_e_script, argv[1]);
932 Perl_croak(aTHX_ "No code specified for -e");
933 sv_catpv(PL_e_script, "\n");
936 case 'I': /* -I handled both here and in moreswitches() */
938 if (!*++s && (s=argv[1]) != Nullch) {
943 STRLEN len = strlen(s);
946 sv_catpvn(sv, "-I", 2);
947 sv_catpvn(sv, p, len);
948 sv_catpvn(sv, " ", 1);
952 Perl_croak(aTHX_ "No directory specified for -I");
956 PL_preprocess = TRUE;
966 PL_preambleav = newAV();
967 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
969 PL_Sv = newSVpv("print myconfig();",0);
971 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
973 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
975 sv_catpv(PL_Sv,"\" Compile-time options:");
977 sv_catpv(PL_Sv," DEBUGGING");
980 sv_catpv(PL_Sv," MULTIPLICITY");
983 sv_catpv(PL_Sv," USE_THREADS");
986 sv_catpv(PL_Sv," USE_ITHREADS");
989 sv_catpv(PL_Sv," USE_64_BITS");
991 # ifdef USE_LONG_DOUBLE
992 sv_catpv(PL_Sv," USE_LONG_DOUBLE");
994 # ifdef USE_LARGE_FILES
995 sv_catpv(PL_Sv," USE_LARGE_FILES");
998 sv_catpv(PL_Sv," USE_SOCKS");
1001 sv_catpv(PL_Sv," PERL_OBJECT");
1003 # ifdef PERL_IMPLICIT_CONTEXT
1004 sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
1006 # ifdef PERL_IMPLICIT_SYS
1007 sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
1009 sv_catpv(PL_Sv,"\\n\",");
1011 #if defined(LOCAL_PATCH_COUNT)
1012 if (LOCAL_PATCH_COUNT > 0) {
1014 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
1015 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
1016 if (PL_localpatches[i])
1017 Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
1021 Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
1024 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
1026 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
1029 sv_catpv(PL_Sv, "; \
1031 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
1032 print \" \\%ENV:\\n @env\\n\" if @env; \
1033 print \" \\@INC:\\n @INC\\n\";");
1036 PL_Sv = newSVpv("config_vars(qw(",0);
1037 sv_catpv(PL_Sv, ++s);
1038 sv_catpv(PL_Sv, "))");
1041 av_push(PL_preambleav, PL_Sv);
1042 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1045 PL_doextract = TRUE;
1053 if (!*++s || isSPACE(*s)) {
1057 /* catch use of gnu style long options */
1058 if (strEQ(s, "version")) {
1062 if (strEQ(s, "help")) {
1069 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
1075 #ifndef SECURE_INTERNAL_GETENV
1078 (s = PerlEnv_getenv("PERL5OPT")))
1082 if (*s == '-' && *(s+1) == 'T')
1095 if (!strchr("DIMUdmw", *s))
1096 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
1097 s = moreswitches(s);
1103 scriptname = argv[0];
1106 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1108 else if (scriptname == Nullch) {
1110 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
1118 open_script(scriptname,dosearch,sv,&fdscript);
1120 validate_suid(validarg, scriptname,fdscript);
1122 #if defined(SIGCHLD) || defined(SIGCLD)
1125 # define SIGCHLD SIGCLD
1127 Sighandler_t sigstate = rsignal_state(SIGCHLD);
1128 if (sigstate == SIG_IGN) {
1129 if (ckWARN(WARN_SIGNAL))
1130 Perl_warner(aTHX_ WARN_SIGNAL,
1131 "Can't ignore signal CHLD, forcing to default");
1132 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
1139 if (cddir && PerlDir_chdir(cddir) < 0)
1140 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
1144 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
1145 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
1146 CvUNIQUE_on(PL_compcv);
1148 PL_comppad = newAV();
1149 av_push(PL_comppad, Nullsv);
1150 PL_curpad = AvARRAY(PL_comppad);
1151 PL_comppad_name = newAV();
1152 PL_comppad_name_fill = 0;
1153 PL_min_intro_pending = 0;
1156 av_store(PL_comppad_name, 0, newSVpvn("@_", 2));
1157 PL_curpad[0] = (SV*)newAV();
1158 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
1159 CvOWNER(PL_compcv) = 0;
1160 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
1161 MUTEX_INIT(CvMUTEXP(PL_compcv));
1162 #endif /* USE_THREADS */
1164 comppadlist = newAV();
1165 AvREAL_off(comppadlist);
1166 av_store(comppadlist, 0, (SV*)PL_comppad_name);
1167 av_store(comppadlist, 1, (SV*)PL_comppad);
1168 CvPADLIST(PL_compcv) = comppadlist;
1170 boot_core_UNIVERSAL();
1172 boot_core_xsutils();
1176 (*xsinit)(aTHXo); /* in case linked C routines want magical variables */
1177 #if defined(VMS) || defined(WIN32) || defined(DJGPP)
1185 init_predump_symbols();
1186 /* init_postdump_symbols not currently designed to be called */
1187 /* more than once (ENV isn't cleared first, for example) */
1188 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
1190 init_postdump_symbols(argc,argv,env);
1194 /* now parse the script */
1196 SETERRNO(0,SS$_NORMAL);
1198 if (yyparse() || PL_error_count) {
1200 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
1202 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1206 CopLINE_set(PL_curcop, 0);
1207 PL_curstash = PL_defstash;
1208 PL_preprocess = FALSE;
1210 SvREFCNT_dec(PL_e_script);
1211 PL_e_script = Nullsv;
1214 /* now that script is parsed, we can modify record separator */
1215 SvREFCNT_dec(PL_rs);
1216 PL_rs = SvREFCNT_inc(PL_nrs);
1217 sv_setsv(get_sv("/", TRUE), PL_rs);
1222 SAVECOPFILE(PL_curcop);
1223 SAVECOPLINE(PL_curcop);
1224 gv_check(PL_defstash);
1231 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1232 dump_mstats("after compilation:");
1241 =for apidoc perl_run
1243 Tells a Perl interpreter to run. See L<perlembed>.
1259 oldscope = PL_scopestack_ix;
1261 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1263 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope);
1269 cxstack_ix = -1; /* start context stack again */
1271 case 0: /* normal completion */
1272 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1277 case 2: /* my_exit() */
1278 while (PL_scopestack_ix > oldscope)
1281 PL_curstash = PL_defstash;
1282 if (PL_endav && !PL_minus_c)
1283 call_list(oldscope, PL_endav);
1285 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1286 dump_mstats("after execution: ");
1288 ret = STATUS_NATIVE_EXPORT;
1292 POPSTACK_TO(PL_mainstack);
1295 PerlIO_printf(Perl_error_log, "panic: restartop\n");
1305 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1307 S_vrun_body(pTHX_ va_list args)
1309 I32 oldscope = va_arg(args, I32);
1311 return run_body(oldscope);
1317 S_run_body(pTHX_ I32 oldscope)
1321 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1322 PL_sawampersand ? "Enabling" : "Omitting"));
1324 if (!PL_restartop) {
1325 DEBUG_x(dump_all());
1326 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1327 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
1331 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
1334 if (PERLDB_SINGLE && PL_DBsingle)
1335 sv_setiv(PL_DBsingle, 1);
1337 call_list(oldscope, PL_initav);
1343 PL_op = PL_restartop;
1347 else if (PL_main_start) {
1348 CvDEPTH(PL_main_cv) = 1;
1349 PL_op = PL_main_start;
1359 =for apidoc p||get_sv
1361 Returns the SV of the specified Perl scalar. If C<create> is set and the
1362 Perl variable does not exist then it will be created. If C<create> is not
1363 set and the variable does not exist then NULL is returned.
1369 Perl_get_sv(pTHX_ const char *name, I32 create)
1373 if (name[1] == '\0' && !isALPHA(name[0])) {
1374 PADOFFSET tmp = find_threadsv(name);
1375 if (tmp != NOT_IN_PAD) {
1377 return THREADSV(tmp);
1380 #endif /* USE_THREADS */
1381 gv = gv_fetchpv(name, create, SVt_PV);
1388 =for apidoc p||get_av
1390 Returns the AV of the specified Perl array. If C<create> is set and the
1391 Perl variable does not exist then it will be created. If C<create> is not
1392 set and the variable does not exist then NULL is returned.
1398 Perl_get_av(pTHX_ const char *name, I32 create)
1400 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1409 =for apidoc p||get_hv
1411 Returns the HV of the specified Perl hash. If C<create> is set and the
1412 Perl variable does not exist then it will be created. If C<create> is not
1413 set and the variable does not exist then NULL is returned.
1419 Perl_get_hv(pTHX_ const char *name, I32 create)
1421 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1430 =for apidoc p||get_cv
1432 Returns the CV of the specified Perl subroutine. If C<create> is set and
1433 the Perl subroutine does not exist then it will be declared (which has the
1434 same effect as saying C<sub name;>). If C<create> is not set and the
1435 subroutine does not exist then NULL is returned.
1441 Perl_get_cv(pTHX_ const char *name, I32 create)
1443 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1444 /* XXX unsafe for threads if eval_owner isn't held */
1445 /* XXX this is probably not what they think they're getting.
1446 * It has the same effect as "sub name;", i.e. just a forward
1448 if (create && !GvCVu(gv))
1449 return newSUB(start_subparse(FALSE, 0),
1450 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1458 /* Be sure to refetch the stack pointer after calling these routines. */
1461 =for apidoc p||call_argv
1463 Performs a callback to the specified Perl sub. See L<perlcall>.
1469 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
1471 /* See G_* flags in cop.h */
1472 /* null terminated arg list */
1479 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1484 return call_pv(sub_name, flags);
1488 =for apidoc p||call_pv
1490 Performs a callback to the specified Perl sub. See L<perlcall>.
1496 Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
1497 /* name of the subroutine */
1498 /* See G_* flags in cop.h */
1500 return call_sv((SV*)get_cv(sub_name, TRUE), flags);
1504 =for apidoc p||call_method
1506 Performs a callback to the specified Perl method. The blessed object must
1507 be on the stack. See L<perlcall>.
1513 Perl_call_method(pTHX_ const char *methname, I32 flags)
1514 /* name of the subroutine */
1515 /* See G_* flags in cop.h */
1523 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1528 return call_sv(*PL_stack_sp--, flags);
1531 /* May be called with any of a CV, a GV, or an SV containing the name. */
1533 =for apidoc p||call_sv
1535 Performs a callback to the Perl sub whose name is in the SV. See
1542 Perl_call_sv(pTHX_ SV *sv, I32 flags)
1544 /* See G_* flags in cop.h */
1547 LOGOP myop; /* fake syntax tree node */
1551 bool oldcatch = CATCH_GET;
1556 if (flags & G_DISCARD) {
1561 Zero(&myop, 1, LOGOP);
1562 myop.op_next = Nullop;
1563 if (!(flags & G_NOARGS))
1564 myop.op_flags |= OPf_STACKED;
1565 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1566 (flags & G_ARRAY) ? OPf_WANT_LIST :
1571 EXTEND(PL_stack_sp, 1);
1572 *++PL_stack_sp = sv;
1574 oldscope = PL_scopestack_ix;
1576 if (PERLDB_SUB && PL_curstash != PL_debstash
1577 /* Handle first BEGIN of -d. */
1578 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1579 /* Try harder, since this may have been a sighandler, thus
1580 * curstash may be meaningless. */
1581 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1582 && !(flags & G_NODEBUG))
1583 PL_op->op_private |= OPpENTERSUB_DB;
1585 if (!(flags & G_EVAL)) {
1587 call_body((OP*)&myop, FALSE);
1588 retval = PL_stack_sp - (PL_stack_base + oldmark);
1589 CATCH_SET(oldcatch);
1592 cLOGOP->op_other = PL_op;
1594 /* we're trying to emulate pp_entertry() here */
1596 register PERL_CONTEXT *cx;
1597 I32 gimme = GIMME_V;
1602 push_return(PL_op->op_next);
1603 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1605 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1607 PL_in_eval = EVAL_INEVAL;
1608 if (flags & G_KEEPERR)
1609 PL_in_eval |= EVAL_KEEPERR;
1615 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1617 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1624 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1626 call_body((OP*)&myop, FALSE);
1628 retval = PL_stack_sp - (PL_stack_base + oldmark);
1629 if (!(flags & G_KEEPERR))
1636 /* my_exit() was called */
1637 PL_curstash = PL_defstash;
1640 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1641 Perl_croak(aTHX_ "Callback called exit");
1646 PL_op = PL_restartop;
1650 PL_stack_sp = PL_stack_base + oldmark;
1651 if (flags & G_ARRAY)
1655 *++PL_stack_sp = &PL_sv_undef;
1660 if (PL_scopestack_ix > oldscope) {
1664 register PERL_CONTEXT *cx;
1676 if (flags & G_DISCARD) {
1677 PL_stack_sp = PL_stack_base + oldmark;
1686 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1688 S_vcall_body(pTHX_ va_list args)
1690 OP *myop = va_arg(args, OP*);
1691 int is_eval = va_arg(args, int);
1693 call_body(myop, is_eval);
1699 S_call_body(pTHX_ OP *myop, int is_eval)
1703 if (PL_op == myop) {
1705 PL_op = Perl_pp_entereval(aTHX);
1707 PL_op = Perl_pp_entersub(aTHX);
1713 /* Eval a string. The G_EVAL flag is always assumed. */
1716 =for apidoc p||eval_sv
1718 Tells Perl to C<eval> the string in the SV.
1724 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
1726 /* See G_* flags in cop.h */
1729 UNOP myop; /* fake syntax tree node */
1730 I32 oldmark = SP - PL_stack_base;
1737 if (flags & G_DISCARD) {
1744 Zero(PL_op, 1, UNOP);
1745 EXTEND(PL_stack_sp, 1);
1746 *++PL_stack_sp = sv;
1747 oldscope = PL_scopestack_ix;
1749 if (!(flags & G_NOARGS))
1750 myop.op_flags = OPf_STACKED;
1751 myop.op_next = Nullop;
1752 myop.op_type = OP_ENTEREVAL;
1753 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1754 (flags & G_ARRAY) ? OPf_WANT_LIST :
1756 if (flags & G_KEEPERR)
1757 myop.op_flags |= OPf_SPECIAL;
1759 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1761 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1768 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1770 call_body((OP*)&myop,TRUE);
1772 retval = PL_stack_sp - (PL_stack_base + oldmark);
1773 if (!(flags & G_KEEPERR))
1780 /* my_exit() was called */
1781 PL_curstash = PL_defstash;
1784 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1785 Perl_croak(aTHX_ "Callback called exit");
1790 PL_op = PL_restartop;
1794 PL_stack_sp = PL_stack_base + oldmark;
1795 if (flags & G_ARRAY)
1799 *++PL_stack_sp = &PL_sv_undef;
1805 if (flags & G_DISCARD) {
1806 PL_stack_sp = PL_stack_base + oldmark;
1816 =for apidoc p||eval_pv
1818 Tells Perl to C<eval> the given string and return an SV* result.
1824 Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
1827 SV* sv = newSVpv(p, 0);
1830 eval_sv(sv, G_SCALAR);
1837 if (croak_on_error && SvTRUE(ERRSV)) {
1839 Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
1845 /* Require a module. */
1848 =for apidoc p||require_pv
1850 Tells Perl to C<require> a module.
1856 Perl_require_pv(pTHX_ const char *pv)
1860 PUSHSTACKi(PERLSI_REQUIRE);
1862 sv = sv_newmortal();
1863 sv_setpv(sv, "require '");
1866 eval_sv(sv, G_DISCARD);
1872 Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
1876 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1877 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1881 S_usage(pTHX_ char *name) /* XXX move this out into a module ? */
1883 /* This message really ought to be max 23 lines.
1884 * Removed -h because the user already knows that opton. Others? */
1886 static char *usage_msg[] = {
1887 "-0[octal] specify record separator (\\0, if no argument)",
1888 "-a autosplit mode with -n or -p (splits $_ into @F)",
1889 "-C enable native wide character system interfaces",
1890 "-c check syntax only (runs BEGIN and END blocks)",
1891 "-d[:debugger] run program under debugger",
1892 "-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
1893 "-e 'command' one line of program (several -e's allowed, omit programfile)",
1894 "-F/pattern/ split() pattern for -a switch (//'s are optional)",
1895 "-i[extension] edit <> files in place (makes backup if extension supplied)",
1896 "-Idirectory specify @INC/#include directory (several -I's allowed)",
1897 "-l[octal] enable line ending processing, specifies line terminator",
1898 "-[mM][-]module execute `use/no module...' before executing program",
1899 "-n assume 'while (<>) { ... }' loop around program",
1900 "-p assume loop like -n but print line also, like sed",
1901 "-P run program through C preprocessor before compilation",
1902 "-s enable rudimentary parsing for switches after programfile",
1903 "-S look for programfile using PATH environment variable",
1904 "-T enable tainting checks",
1905 "-u dump core after parsing program",
1906 "-U allow unsafe operations",
1907 "-v print version, subversion (includes VERY IMPORTANT perl info)",
1908 "-V[:variable] print configuration summary (or a single Config.pm variable)",
1909 "-w enable many useful warnings (RECOMMENDED)",
1910 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1914 char **p = usage_msg;
1916 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1918 printf("\n %s", *p++);
1921 /* This routine handles any switches that can be given during run */
1924 Perl_moreswitches(pTHX_ char *s)
1933 rschar = (U32)scan_oct(s, 4, &numlen);
1934 SvREFCNT_dec(PL_nrs);
1935 if (rschar & ~((U8)~0))
1936 PL_nrs = &PL_sv_undef;
1937 else if (!rschar && numlen >= 2)
1938 PL_nrs = newSVpvn("", 0);
1941 PL_nrs = newSVpvn(&ch, 1);
1946 PL_widesyscalls = TRUE;
1951 PL_splitstr = savepv(s + 1);
1965 if (*s == ':' || *s == '=') {
1966 my_setenv("PERL5DB", Perl_form(aTHX_ "use Devel::%s;", ++s));
1970 PL_perldb = PERLDB_ALL;
1978 if (isALPHA(s[1])) {
1979 static char debopts[] = "psltocPmfrxuLHXDS";
1982 for (s++; *s && (d = strchr(debopts,*s)); s++)
1983 PL_debug |= 1 << (d - debopts);
1986 PL_debug = atoi(s+1);
1987 for (s++; isDIGIT(*s); s++) ;
1989 PL_debug |= 0x80000000;
1992 if (ckWARN_d(WARN_DEBUGGING))
1993 Perl_warner(aTHX_ WARN_DEBUGGING,
1994 "Recompile perl with -DDEBUGGING to use -D switch\n");
1995 for (s++; isALNUM(*s); s++) ;
2001 usage(PL_origargv[0]);
2005 Safefree(PL_inplace);
2006 PL_inplace = savepv(s+1);
2008 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
2011 if (*s == '-') /* Additional switches on #! line. */
2015 case 'I': /* -I handled both here and in parse_perl() */
2018 while (*s && isSPACE(*s))
2023 /* ignore trailing spaces (possibly followed by other switches) */
2025 for (e = p; *e && !isSPACE(*e); e++) ;
2029 } while (*p && *p != '-');
2030 e = savepvn(s, e-s);
2038 Perl_croak(aTHX_ "No directory specified for -I");
2046 PL_ors = savepv("\n");
2048 *PL_ors = (char)scan_oct(s, 3 + (*s == '0'), &numlen);
2053 if (RsPARA(PL_nrs)) {
2058 PL_ors = SvPV(PL_nrs, PL_orslen);
2059 PL_ors = savepvn(PL_ors, PL_orslen);
2063 forbid_setid("-M"); /* XXX ? */
2066 forbid_setid("-m"); /* XXX ? */
2071 /* -M-foo == 'no foo' */
2072 if (*s == '-') { use = "no "; ++s; }
2073 sv = newSVpv(use,0);
2075 /* We allow -M'Module qw(Foo Bar)' */
2076 while(isALNUM(*s) || *s==':') ++s;
2078 sv_catpv(sv, start);
2079 if (*(start-1) == 'm') {
2081 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
2082 sv_catpv( sv, " ()");
2085 sv_catpvn(sv, start, s-start);
2086 sv_catpv(sv, " split(/,/,q{");
2092 PL_preambleav = newAV();
2093 av_push(PL_preambleav, sv);
2096 Perl_croak(aTHX_ "No space allowed after -%c", *(s-1));
2108 PL_doswitches = TRUE;
2113 Perl_croak(aTHX_ "Too late for \"-T\" option");
2117 PL_do_undump = TRUE;
2125 printf(Perl_form(aTHX_ "\nThis is perl, v%v built for %s",
2126 PL_patchlevel, ARCHNAME));
2127 #if defined(LOCAL_PATCH_COUNT)
2128 if (LOCAL_PATCH_COUNT > 0)
2129 printf("\n(with %d registered patch%s, see perl -V for more detail)",
2130 (int)LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
2133 printf("\n\nCopyright 1987-2000, Larry Wall\n");
2135 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
2138 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
2139 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
2142 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
2143 "Version 5 port Copyright (c) 1994-1999, Andreas Kaiser, Ilya Zakharevich\n");
2146 printf("atariST series port, ++jrb bammi@cadence.com\n");
2149 printf("BeOS port Copyright Tom Spindler, 1997-1999\n");
2152 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1999\n");
2155 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
2158 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1999\n");
2161 printf("VM/ESA port by Neale Ferguson, 1998-1999\n");
2164 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
2167 printf("MiNT port by Guido Flohr, 1997-1999\n");
2169 #ifdef BINARY_BUILD_NOTICE
2170 BINARY_BUILD_NOTICE;
2173 Perl may be copied only under the terms of either the Artistic License or the\n\
2174 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
2175 Complete documentation for Perl, including FAQ lists, should be found on\n\
2176 this system using `man perl' or `perldoc perl'. If you have access to the\n\
2177 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
2180 if (! (PL_dowarn & G_WARN_ALL_MASK))
2181 PL_dowarn |= G_WARN_ON;
2185 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
2186 PL_compiling.cop_warnings = WARN_ALL ;
2190 PL_dowarn = G_WARN_ALL_OFF;
2191 PL_compiling.cop_warnings = WARN_NONE ;
2196 if (s[1] == '-') /* Additional switches on #! line. */
2201 #if defined(WIN32) || !defined(PERL_STRICT_CR)
2207 #ifdef ALTERNATE_SHEBANG
2208 case 'S': /* OS/2 needs -S on "extproc" line. */
2216 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
2221 /* compliments of Tom Christiansen */
2223 /* unexec() can be found in the Gnu emacs distribution */
2224 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
2227 Perl_my_unexec(pTHX)
2235 prog = newSVpv(BIN_EXP, 0);
2236 sv_catpv(prog, "/perl");
2237 file = newSVpv(PL_origfilename, 0);
2238 sv_catpv(file, ".perldump");
2240 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
2241 /* unexec prints msg to stderr in case of failure */
2242 PerlProc_exit(status);
2245 # include <lib$routines.h>
2246 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
2248 ABORT(); /* for use with undump */
2253 /* initialize curinterp */
2258 #ifdef PERL_OBJECT /* XXX kludge */
2261 PL_chopset = " \n-"; \
2262 PL_copline = NOLINE; \
2263 PL_curcop = &PL_compiling;\
2264 PL_curcopdb = NULL; \
2266 PL_dumpindent = 4; \
2267 PL_laststatval = -1; \
2268 PL_laststype = OP_STAT; \
2269 PL_maxscream = -1; \
2270 PL_maxsysfd = MAXSYSFD; \
2271 PL_statname = Nullsv; \
2272 PL_tmps_floor = -1; \
2274 PL_op_mask = NULL; \
2275 PL_laststatval = -1; \
2276 PL_laststype = OP_STAT; \
2277 PL_mess_sv = Nullsv; \
2278 PL_splitstr = " "; \
2279 PL_generation = 100; \
2280 PL_exitlist = NULL; \
2281 PL_exitlistlen = 0; \
2283 PL_in_clean_objs = FALSE; \
2284 PL_in_clean_all = FALSE; \
2285 PL_profiledata = NULL; \
2287 PL_rsfp_filters = Nullav; \
2292 # ifdef MULTIPLICITY
2293 # define PERLVAR(var,type)
2294 # define PERLVARA(var,n,type)
2295 # if defined(PERL_IMPLICIT_CONTEXT)
2296 # if defined(USE_THREADS)
2297 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2298 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2299 # else /* !USE_THREADS */
2300 # define PERLVARI(var,type,init) aTHX->var = init;
2301 # define PERLVARIC(var,type,init) aTHX->var = init;
2302 # endif /* USE_THREADS */
2304 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2305 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2307 # include "intrpvar.h"
2308 # ifndef USE_THREADS
2309 # include "thrdvar.h"
2316 # define PERLVAR(var,type)
2317 # define PERLVARA(var,n,type)
2318 # define PERLVARI(var,type,init) PL_##var = init;
2319 # define PERLVARIC(var,type,init) PL_##var = init;
2320 # include "intrpvar.h"
2321 # ifndef USE_THREADS
2322 # include "thrdvar.h"
2334 S_init_main_stash(pTHX)
2339 /* Note that strtab is a rather special HV. Assumptions are made
2340 about not iterating on it, and not adding tie magic to it.
2341 It is properly deallocated in perl_destruct() */
2342 PL_strtab = newHV();
2344 MUTEX_INIT(&PL_strtab_mutex);
2346 HvSHAREKEYS_off(PL_strtab); /* mandatory */
2347 hv_ksplit(PL_strtab, 512);
2349 PL_curstash = PL_defstash = newHV();
2350 PL_curstname = newSVpvn("main",4);
2351 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
2352 SvREFCNT_dec(GvHV(gv));
2353 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
2355 HvNAME(PL_defstash) = savepv("main");
2356 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
2357 GvMULTI_on(PL_incgv);
2358 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
2359 GvMULTI_on(PL_hintgv);
2360 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
2361 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
2362 GvMULTI_on(PL_errgv);
2363 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
2364 GvMULTI_on(PL_replgv);
2365 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
2366 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
2367 sv_setpvn(ERRSV, "", 0);
2368 PL_curstash = PL_defstash;
2369 CopSTASH_set(&PL_compiling, PL_defstash);
2370 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
2371 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
2372 /* We must init $/ before switches are processed. */
2373 sv_setpvn(get_sv("/", TRUE), "\n", 1);
2377 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
2385 PL_origfilename = savepv("-e");
2388 /* if find_script() returns, it returns a malloc()-ed value */
2389 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
2391 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
2392 char *s = scriptname + 8;
2393 *fdscript = atoi(s);
2397 scriptname = savepv(s + 1);
2398 Safefree(PL_origfilename);
2399 PL_origfilename = scriptname;
2404 CopFILE_set(PL_curcop, PL_origfilename);
2405 if (strEQ(PL_origfilename,"-"))
2407 if (*fdscript >= 0) {
2408 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
2409 #if defined(HAS_FCNTL) && defined(F_SETFD)
2411 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2414 else if (PL_preprocess) {
2415 char *cpp_cfg = CPPSTDIN;
2416 SV *cpp = newSVpvn("",0);
2417 SV *cmd = NEWSV(0,0);
2419 if (strEQ(cpp_cfg, "cppstdin"))
2420 Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
2421 sv_catpv(cpp, cpp_cfg);
2423 sv_catpvn(sv, "-I", 2);
2424 sv_catpv(sv,PRIVLIB_EXP);
2427 Perl_sv_setpvf(aTHX_ cmd, "\
2428 sed %s -e \"/^[^#]/b\" \
2429 -e \"/^#[ ]*include[ ]/b\" \
2430 -e \"/^#[ ]*define[ ]/b\" \
2431 -e \"/^#[ ]*if[ ]/b\" \
2432 -e \"/^#[ ]*ifdef[ ]/b\" \
2433 -e \"/^#[ ]*ifndef[ ]/b\" \
2434 -e \"/^#[ ]*else/b\" \
2435 -e \"/^#[ ]*elif[ ]/b\" \
2436 -e \"/^#[ ]*undef[ ]/b\" \
2437 -e \"/^#[ ]*endif/b\" \
2439 %s | %"SVf" -C %"SVf" %s",
2440 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2443 Perl_sv_setpvf(aTHX_ cmd, "\
2444 %s %s -e '/^[^#]/b' \
2445 -e '/^#[ ]*include[ ]/b' \
2446 -e '/^#[ ]*define[ ]/b' \
2447 -e '/^#[ ]*if[ ]/b' \
2448 -e '/^#[ ]*ifdef[ ]/b' \
2449 -e '/^#[ ]*ifndef[ ]/b' \
2450 -e '/^#[ ]*else/b' \
2451 -e '/^#[ ]*elif[ ]/b' \
2452 -e '/^#[ ]*undef[ ]/b' \
2453 -e '/^#[ ]*endif/b' \
2455 %s | %"SVf" %"SVf" %s",
2457 Perl_sv_setpvf(aTHX_ cmd, "\
2458 %s %s -e '/^[^#]/b' \
2459 -e '/^#[ ]*include[ ]/b' \
2460 -e '/^#[ ]*define[ ]/b' \
2461 -e '/^#[ ]*if[ ]/b' \
2462 -e '/^#[ ]*ifdef[ ]/b' \
2463 -e '/^#[ ]*ifndef[ ]/b' \
2464 -e '/^#[ ]*else/b' \
2465 -e '/^#[ ]*elif[ ]/b' \
2466 -e '/^#[ ]*undef[ ]/b' \
2467 -e '/^#[ ]*endif/b' \
2469 %s | %"SVf" -C %"SVf" %s",
2476 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2478 scriptname, cpp, sv, CPPMINUS);
2479 PL_doextract = FALSE;
2480 #ifdef IAMSUID /* actually, this is caught earlier */
2481 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2483 (void)seteuid(PL_uid); /* musn't stay setuid root */
2486 (void)setreuid((Uid_t)-1, PL_uid);
2488 #ifdef HAS_SETRESUID
2489 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2491 PerlProc_setuid(PL_uid);
2495 if (PerlProc_geteuid() != PL_uid)
2496 Perl_croak(aTHX_ "Can't do seteuid!\n");
2498 #endif /* IAMSUID */
2499 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2503 else if (!*scriptname) {
2504 forbid_setid("program input from stdin");
2505 PL_rsfp = PerlIO_stdin();
2508 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2509 #if defined(HAS_FCNTL) && defined(F_SETFD)
2511 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2516 #ifndef IAMSUID /* in case script is not readable before setuid */
2518 PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 &&
2519 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2522 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
2523 (int)PERL_REVISION, (int)PERL_VERSION,
2524 (int)PERL_SUBVERSION), PL_origargv);
2525 Perl_croak(aTHX_ "Can't do setuid\n");
2529 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
2530 CopFILE(PL_curcop), Strerror(errno));
2535 * I_SYSSTATVFS HAS_FSTATVFS
2537 * I_STATFS HAS_FSTATFS
2538 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
2539 * here so that metaconfig picks them up. */
2543 S_fd_on_nosuid_fs(pTHX_ int fd)
2545 int check_okay = 0; /* able to do all the required sys/libcalls */
2546 int on_nosuid = 0; /* the fd is on a nosuid fs */
2548 * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
2549 * fstatvfs() is UNIX98.
2550 * fstatfs() is 4.3 BSD.
2551 * ustat()+getmnt() is pre-4.3 BSD.
2552 * getmntent() is O(number-of-mounted-filesystems) and can hang on
2553 * an irrelevant filesystem while trying to reach the right one.
2556 # ifdef HAS_FSTATVFS
2557 struct statvfs stfs;
2558 check_okay = fstatvfs(fd, &stfs) == 0;
2559 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
2561 # ifdef PERL_MOUNT_NOSUID
2562 # if defined(HAS_FSTATFS) && \
2563 defined(HAS_STRUCT_STATFS) && \
2564 defined(HAS_STRUCT_STATFS_F_FLAGS)
2566 check_okay = fstatfs(fd, &stfs) == 0;
2567 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
2569 # if defined(HAS_FSTAT) && \
2570 defined(HAS_USTAT) && \
2571 defined(HAS_GETMNT) && \
2572 defined(HAS_STRUCT_FS_DATA) && \
2575 if (fstat(fd, &fdst) == 0) {
2577 if (ustat(fdst.st_dev, &us) == 0) {
2579 /* NOSTAT_ONE here because we're not examining fields which
2580 * vary between that case and STAT_ONE. */
2581 if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
2582 size_t cmplen = sizeof(us.f_fname);
2583 if (sizeof(fsd.fd_req.path) < cmplen)
2584 cmplen = sizeof(fsd.fd_req.path);
2585 if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
2586 fdst.st_dev == fsd.fd_req.dev) {
2588 on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
2594 # endif /* fstat+ustat+getmnt */
2595 # endif /* fstatfs */
2597 # if defined(HAS_GETMNTENT) && \
2598 defined(HAS_HASMNTOPT) && \
2599 defined(MNTOPT_NOSUID)
2600 FILE *mtab = fopen("/etc/mtab", "r");
2601 struct mntent *entry;
2602 struct stat stb, fsb;
2604 if (mtab && (fstat(fd, &stb) == 0)) {
2605 while (entry = getmntent(mtab)) {
2606 if (stat(entry->mnt_dir, &fsb) == 0
2607 && fsb.st_dev == stb.st_dev)
2609 /* found the filesystem */
2611 if (hasmntopt(entry, MNTOPT_NOSUID))
2614 } /* A single fs may well fail its stat(). */
2619 # endif /* getmntent+hasmntopt */
2620 # endif /* PERL_MOUNT_NOSUID: fstatfs or fstat+ustat+statfs */
2621 # endif /* statvfs */
2624 Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
2627 #endif /* IAMSUID */
2630 S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
2634 /* do we need to emulate setuid on scripts? */
2636 /* This code is for those BSD systems that have setuid #! scripts disabled
2637 * in the kernel because of a security problem. Merely defining DOSUID
2638 * in perl will not fix that problem, but if you have disabled setuid
2639 * scripts in the kernel, this will attempt to emulate setuid and setgid
2640 * on scripts that have those now-otherwise-useless bits set. The setuid
2641 * root version must be called suidperl or sperlN.NNN. If regular perl
2642 * discovers that it has opened a setuid script, it calls suidperl with
2643 * the same argv that it had. If suidperl finds that the script it has
2644 * just opened is NOT setuid root, it sets the effective uid back to the
2645 * uid. We don't just make perl setuid root because that loses the
2646 * effective uid we had before invoking perl, if it was different from the
2649 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2650 * be defined in suidperl only. suidperl must be setuid root. The
2651 * Configure script will set this up for you if you want it.
2658 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2659 Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
2660 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2665 #ifndef HAS_SETREUID
2666 /* On this access check to make sure the directories are readable,
2667 * there is actually a small window that the user could use to make
2668 * filename point to an accessible directory. So there is a faint
2669 * chance that someone could execute a setuid script down in a
2670 * non-accessible directory. I don't know what to do about that.
2671 * But I don't think it's too important. The manual lies when
2672 * it says access() is useful in setuid programs.
2674 if (PerlLIO_access(CopFILE(PL_curcop),1)) /*double check*/
2675 Perl_croak(aTHX_ "Permission denied");
2677 /* If we can swap euid and uid, then we can determine access rights
2678 * with a simple stat of the file, and then compare device and
2679 * inode to make sure we did stat() on the same file we opened.
2680 * Then we just have to make sure he or she can execute it.
2683 struct stat tmpstatbuf;
2687 setreuid(PL_euid,PL_uid) < 0
2690 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2693 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2694 Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */
2695 if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0)
2696 Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */
2697 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
2698 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp)))
2699 Perl_croak(aTHX_ "Permission denied");
2701 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2702 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2703 (void)PerlIO_close(PL_rsfp);
2704 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2705 PerlIO_printf(PL_rsfp,
2706 "User %"Uid_t_f" tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2707 (Filename of set-id script was %s, uid %"Uid_t_f" gid %"Gid_t_f".)\n\nSincerely,\nperl\n",
2708 PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2709 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2711 PL_statbuf.st_uid, PL_statbuf.st_gid);
2712 (void)PerlProc_pclose(PL_rsfp);
2714 Perl_croak(aTHX_ "Permission denied\n");
2718 setreuid(PL_uid,PL_euid) < 0
2720 # if defined(HAS_SETRESUID)
2721 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2724 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2725 Perl_croak(aTHX_ "Can't reswap uid and euid");
2726 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2727 Perl_croak(aTHX_ "Permission denied\n");
2729 #endif /* HAS_SETREUID */
2730 #endif /* IAMSUID */
2732 if (!S_ISREG(PL_statbuf.st_mode))
2733 Perl_croak(aTHX_ "Permission denied");
2734 if (PL_statbuf.st_mode & S_IWOTH)
2735 Perl_croak(aTHX_ "Setuid/gid script is writable by world");
2736 PL_doswitches = FALSE; /* -s is insecure in suid */
2737 CopLINE_inc(PL_curcop);
2738 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2739 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
2740 Perl_croak(aTHX_ "No #! line");
2741 s = SvPV(PL_linestr,n_a)+2;
2743 while (!isSPACE(*s)) s++;
2744 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
2745 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2746 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2747 Perl_croak(aTHX_ "Not a perl script");
2748 while (*s == ' ' || *s == '\t') s++;
2750 * #! arg must be what we saw above. They can invoke it by
2751 * mentioning suidperl explicitly, but they may not add any strange
2752 * arguments beyond what #! says if they do invoke suidperl that way.
2754 len = strlen(validarg);
2755 if (strEQ(validarg," PHOOEY ") ||
2756 strnNE(s,validarg,len) || !isSPACE(s[len]))
2757 Perl_croak(aTHX_ "Args must match #! line");
2760 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2761 PL_euid == PL_statbuf.st_uid)
2763 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2764 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2765 #endif /* IAMSUID */
2767 if (PL_euid) { /* oops, we're not the setuid root perl */
2768 (void)PerlIO_close(PL_rsfp);
2771 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
2772 (int)PERL_REVISION, (int)PERL_VERSION,
2773 (int)PERL_SUBVERSION), PL_origargv);
2775 Perl_croak(aTHX_ "Can't do setuid\n");
2778 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2780 (void)setegid(PL_statbuf.st_gid);
2783 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2785 #ifdef HAS_SETRESGID
2786 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2788 PerlProc_setgid(PL_statbuf.st_gid);
2792 if (PerlProc_getegid() != PL_statbuf.st_gid)
2793 Perl_croak(aTHX_ "Can't do setegid!\n");
2795 if (PL_statbuf.st_mode & S_ISUID) {
2796 if (PL_statbuf.st_uid != PL_euid)
2798 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2801 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2803 #ifdef HAS_SETRESUID
2804 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2806 PerlProc_setuid(PL_statbuf.st_uid);
2810 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2811 Perl_croak(aTHX_ "Can't do seteuid!\n");
2813 else if (PL_uid) { /* oops, mustn't run as root */
2815 (void)seteuid((Uid_t)PL_uid);
2818 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2820 #ifdef HAS_SETRESUID
2821 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2823 PerlProc_setuid((Uid_t)PL_uid);
2827 if (PerlProc_geteuid() != PL_uid)
2828 Perl_croak(aTHX_ "Can't do seteuid!\n");
2831 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2832 Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */
2835 else if (PL_preprocess)
2836 Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
2837 else if (fdscript >= 0)
2838 Perl_croak(aTHX_ "fd script not allowed in suidperl\n");
2840 Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n");
2842 /* We absolutely must clear out any saved ids here, so we */
2843 /* exec the real perl, substituting fd script for scriptname. */
2844 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2845 PerlIO_rewind(PL_rsfp);
2846 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2847 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2848 if (!PL_origargv[which])
2849 Perl_croak(aTHX_ "Permission denied");
2850 PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
2851 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2852 #if defined(HAS_FCNTL) && defined(F_SETFD)
2853 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2855 PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
2856 (int)PERL_REVISION, (int)PERL_VERSION,
2857 (int)PERL_SUBVERSION), PL_origargv);/* try again */
2858 Perl_croak(aTHX_ "Can't do setuid\n");
2859 #endif /* IAMSUID */
2861 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2862 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2864 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2865 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2867 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2870 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2871 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2872 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2873 /* not set-id, must be wrapped */
2879 S_find_beginning(pTHX)
2881 register char *s, *s2;
2883 /* skip forward in input to the real script? */
2886 while (PL_doextract) {
2887 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2888 Perl_croak(aTHX_ "No Perl script found in input\n");
2889 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2890 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2891 PL_doextract = FALSE;
2892 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2894 while (*s == ' ' || *s == '\t') s++;
2896 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2897 if (strnEQ(s2-4,"perl",4))
2899 while (s = moreswitches(s)) ;
2909 PL_uid = PerlProc_getuid();
2910 PL_euid = PerlProc_geteuid();
2911 PL_gid = PerlProc_getgid();
2912 PL_egid = PerlProc_getegid();
2914 PL_uid |= PL_gid << 16;
2915 PL_euid |= PL_egid << 16;
2917 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2921 S_forbid_setid(pTHX_ char *s)
2923 if (PL_euid != PL_uid)
2924 Perl_croak(aTHX_ "No %s allowed while running setuid", s);
2925 if (PL_egid != PL_gid)
2926 Perl_croak(aTHX_ "No %s allowed while running setgid", s);
2930 Perl_init_debugger(pTHX)
2933 HV *ostash = PL_curstash;
2935 PL_curstash = PL_debstash;
2936 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2937 AvREAL_off(PL_dbargs);
2938 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2939 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2940 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2941 sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */
2942 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2943 sv_setiv(PL_DBsingle, 0);
2944 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2945 sv_setiv(PL_DBtrace, 0);
2946 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2947 sv_setiv(PL_DBsignal, 0);
2948 PL_curstash = ostash;
2951 #ifndef STRESS_REALLOC
2952 #define REASONABLE(size) (size)
2954 #define REASONABLE(size) (1) /* unreasonable */
2958 Perl_init_stacks(pTHX)
2960 /* start with 128-item stack and 8K cxstack */
2961 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2962 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2963 PL_curstackinfo->si_type = PERLSI_MAIN;
2964 PL_curstack = PL_curstackinfo->si_stack;
2965 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2967 PL_stack_base = AvARRAY(PL_curstack);
2968 PL_stack_sp = PL_stack_base;
2969 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2971 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2974 PL_tmps_max = REASONABLE(128);
2976 New(54,PL_markstack,REASONABLE(32),I32);
2977 PL_markstack_ptr = PL_markstack;
2978 PL_markstack_max = PL_markstack + REASONABLE(32);
2982 New(54,PL_scopestack,REASONABLE(32),I32);
2983 PL_scopestack_ix = 0;
2984 PL_scopestack_max = REASONABLE(32);
2986 New(54,PL_savestack,REASONABLE(128),ANY);
2987 PL_savestack_ix = 0;
2988 PL_savestack_max = REASONABLE(128);
2990 New(54,PL_retstack,REASONABLE(16),OP*);
2992 PL_retstack_max = REASONABLE(16);
3001 while (PL_curstackinfo->si_next)
3002 PL_curstackinfo = PL_curstackinfo->si_next;
3003 while (PL_curstackinfo) {
3004 PERL_SI *p = PL_curstackinfo->si_prev;
3005 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3006 Safefree(PL_curstackinfo->si_cxstack);
3007 Safefree(PL_curstackinfo);
3008 PL_curstackinfo = p;
3010 Safefree(PL_tmps_stack);
3011 Safefree(PL_markstack);
3012 Safefree(PL_scopestack);
3013 Safefree(PL_savestack);
3014 Safefree(PL_retstack);
3018 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
3029 lex_start(PL_linestr);
3031 PL_subname = newSVpvn("main",4);
3035 S_init_predump_symbols(pTHX)
3042 sv_setpvn(get_sv("\"", TRUE), " ", 1);
3043 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
3044 GvMULTI_on(PL_stdingv);
3045 io = GvIOp(PL_stdingv);
3046 IoIFP(io) = PerlIO_stdin();
3047 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
3049 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3051 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
3054 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
3056 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
3058 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3060 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
3061 GvMULTI_on(PL_stderrgv);
3062 io = GvIOp(PL_stderrgv);
3063 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
3064 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
3066 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3068 PL_statname = NEWSV(66,0); /* last filename we did stat on */
3071 PL_osname = savepv(OSNAME);
3075 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
3082 argc--,argv++; /* skip name of script */
3083 if (PL_doswitches) {
3084 for (; argc > 0 && **argv == '-'; argc--,argv++) {
3087 if (argv[0][1] == '-' && !argv[0][2]) {
3091 if (s = strchr(argv[0], '=')) {
3093 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
3096 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
3099 PL_toptarget = NEWSV(0,0);
3100 sv_upgrade(PL_toptarget, SVt_PVFM);
3101 sv_setpvn(PL_toptarget, "", 0);
3102 PL_bodytarget = NEWSV(0,0);
3103 sv_upgrade(PL_bodytarget, SVt_PVFM);
3104 sv_setpvn(PL_bodytarget, "", 0);
3105 PL_formtarget = PL_bodytarget;
3108 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
3109 sv_setpv(GvSV(tmpgv),PL_origfilename);
3110 magicname("0", "0", 1);
3112 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
3114 sv_setpv(GvSV(tmpgv), os2_execname());
3116 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
3118 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
3119 GvMULTI_on(PL_argvgv);
3120 (void)gv_AVadd(PL_argvgv);
3121 av_clear(GvAVn(PL_argvgv));
3122 for (; argc > 0; argc--,argv++) {
3123 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
3126 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
3128 GvMULTI_on(PL_envgv);
3129 hv = GvHVn(PL_envgv);
3130 hv_magic(hv, PL_envgv, 'E');
3131 #if !defined( VMS) && !defined(EPOC) /* VMS doesn't have environ array */
3132 /* Note that if the supplied env parameter is actually a copy
3133 of the global environ then it may now point to free'd memory
3134 if the environment has been modified since. To avoid this
3135 problem we treat env==NULL as meaning 'use the default'
3140 environ[0] = Nullch;
3141 for (; *env; env++) {
3142 if (!(s = strchr(*env,'=')))
3148 sv = newSVpv(s--,0);
3149 (void)hv_store(hv, *env, s - *env, sv, 0);
3151 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
3152 /* Sins of the RTL. See note in my_setenv(). */
3153 (void)PerlEnv_putenv(savepv(*env));
3157 #ifdef DYNAMIC_ENV_FETCH
3158 HvNAME(hv) = savepv(ENV_HV_NAME);
3162 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
3163 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3167 S_init_perllib(pTHX)
3172 s = PerlEnv_getenv("PERL5LIB");
3176 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
3178 /* Treat PERL5?LIB as a possible search list logical name -- the
3179 * "natural" VMS idiom for a Unix path string. We allow each
3180 * element to be a set of |-separated directories for compatibility.
3184 if (my_trnlnm("PERL5LIB",buf,0))
3185 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
3187 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
3191 /* Use the ~-expanded versions of APPLLIB (undocumented),
3192 ARCHLIB PRIVLIB SITEARCH and SITELIB
3195 incpush(APPLLIB_EXP, TRUE);
3199 incpush(ARCHLIB_EXP, FALSE);
3202 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
3205 incpush(PRIVLIB_EXP, TRUE);
3207 incpush(PRIVLIB_EXP, FALSE);
3211 incpush(SITELIB_EXP, TRUE); /* XXX Win32 needs inc_version_list support */
3215 char *path = SITELIB_EXP;
3220 if (strrchr(buf,'/')) /* XXX Hack, Configure var needed */
3221 *strrchr(buf,'/') = '\0';
3227 #if defined(PERL_VENDORLIB_EXP)
3229 incpush(PERL_VENDORLIB_EXP, TRUE);
3231 incpush(PERL_VENDORLIB_EXP, FALSE);
3235 incpush(".", FALSE);
3239 # define PERLLIB_SEP ';'
3242 # define PERLLIB_SEP '|'
3244 # define PERLLIB_SEP ':'
3247 #ifndef PERLLIB_MANGLE
3248 # define PERLLIB_MANGLE(s,n) (s)
3252 S_incpush(pTHX_ char *p, int addsubdirs)
3254 SV *subdir = Nullsv;
3260 subdir = sv_newmortal();
3263 /* Break at all separators */
3265 SV *libdir = NEWSV(55,0);
3268 /* skip any consecutive separators */
3269 while ( *p == PERLLIB_SEP ) {
3270 /* Uncomment the next line for PATH semantics */
3271 /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
3275 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
3276 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
3281 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
3282 p = Nullch; /* break out */
3286 * BEFORE pushing libdir onto @INC we may first push version- and
3287 * archname-specific sub-directories.
3290 #ifdef PERL_INC_VERSION_LIST
3291 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
3292 const char *incverlist[] = { PERL_INC_VERSION_LIST };
3293 const char **incver;
3295 struct stat tmpstatbuf;
3300 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
3302 while (unix[len-1] == '/') len--; /* Cosmetic */
3303 sv_usepvn(libdir,unix,len);
3306 PerlIO_printf(Perl_error_log,
3307 "Failed to unixify @INC element \"%s\"\n",
3310 /* .../version/archname if -d .../version/archname */
3311 Perl_sv_setpvf(aTHX_ subdir, "%"SVf"/"PERL_FS_VER_FMT"/%s", libdir,
3312 (int)PERL_REVISION, (int)PERL_VERSION,
3313 (int)PERL_SUBVERSION, ARCHNAME);
3314 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3315 S_ISDIR(tmpstatbuf.st_mode))
3316 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3318 /* .../version if -d .../version */
3319 Perl_sv_setpvf(aTHX_ subdir, "%"SVf"/"PERL_FS_VER_FMT, libdir,
3320 (int)PERL_REVISION, (int)PERL_VERSION,
3321 (int)PERL_SUBVERSION);
3322 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3323 S_ISDIR(tmpstatbuf.st_mode))
3324 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3326 /* .../archname if -d .../archname */
3327 Perl_sv_setpvf(aTHX_ subdir, "%"SVf"/%s", libdir, ARCHNAME);
3328 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3329 S_ISDIR(tmpstatbuf.st_mode))
3330 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3332 #ifdef PERL_INC_VERSION_LIST
3333 for (incver = incverlist; *incver; incver++) {
3334 /* .../xxx if -d .../xxx */
3335 Perl_sv_setpvf(aTHX_ subdir, "%"SVf"/%s", libdir, *incver);
3336 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3337 S_ISDIR(tmpstatbuf.st_mode))
3338 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3343 /* finally push this lib directory on the end of @INC */
3344 av_push(GvAVn(PL_incgv), libdir);
3349 STATIC struct perl_thread *
3350 S_init_main_thread(pTHX)
3352 #if !defined(PERL_IMPLICIT_CONTEXT)
3353 struct perl_thread *thr;
3357 Newz(53, thr, 1, struct perl_thread);
3358 PL_curcop = &PL_compiling;
3359 thr->interp = PERL_GET_INTERP;
3360 thr->cvcache = newHV();
3361 thr->threadsv = newAV();
3362 /* thr->threadsvp is set when find_threadsv is called */
3363 thr->specific = newAV();
3364 thr->flags = THRf_R_JOINABLE;
3365 MUTEX_INIT(&thr->mutex);
3366 /* Handcraft thrsv similarly to mess_sv */
3367 New(53, PL_thrsv, 1, SV);
3368 Newz(53, xpv, 1, XPV);
3369 SvFLAGS(PL_thrsv) = SVt_PV;
3370 SvANY(PL_thrsv) = (void*)xpv;
3371 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
3372 SvPVX(PL_thrsv) = (char*)thr;
3373 SvCUR_set(PL_thrsv, sizeof(thr));
3374 SvLEN_set(PL_thrsv, sizeof(thr));
3375 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
3376 thr->oursv = PL_thrsv;
3377 PL_chopset = " \n-";
3380 MUTEX_LOCK(&PL_threads_mutex);
3385 MUTEX_UNLOCK(&PL_threads_mutex);
3387 #ifdef HAVE_THREAD_INTERN
3388 Perl_init_thread_intern(thr);
3391 #ifdef SET_THREAD_SELF
3392 SET_THREAD_SELF(thr);
3394 thr->self = pthread_self();
3395 #endif /* SET_THREAD_SELF */
3399 * These must come after the SET_THR because sv_setpvn does
3400 * SvTAINT and the taint fields require dTHR.
3402 PL_toptarget = NEWSV(0,0);
3403 sv_upgrade(PL_toptarget, SVt_PVFM);
3404 sv_setpvn(PL_toptarget, "", 0);
3405 PL_bodytarget = NEWSV(0,0);
3406 sv_upgrade(PL_bodytarget, SVt_PVFM);
3407 sv_setpvn(PL_bodytarget, "", 0);
3408 PL_formtarget = PL_bodytarget;
3409 thr->errsv = newSVpvn("", 0);
3410 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
3413 PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
3414 PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
3415 PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
3416 PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
3417 PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
3419 PL_reginterp_cnt = 0;
3423 #endif /* USE_THREADS */
3426 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
3430 line_t oldline = CopLINE(PL_curcop);
3436 while (AvFILL(paramList) >= 0) {
3437 cv = (CV*)av_shift(paramList);
3439 #ifdef PERL_FLEXIBLE_EXCEPTIONS
3440 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
3446 #ifndef PERL_FLEXIBLE_EXCEPTIONS
3450 (void)SvPV(atsv, len);
3453 PL_curcop = &PL_compiling;
3454 CopLINE_set(PL_curcop, oldline);
3455 if (paramList == PL_beginav)
3456 sv_catpv(atsv, "BEGIN failed--compilation aborted");
3458 Perl_sv_catpvf(aTHX_ atsv,
3459 "%s failed--call queue aborted",
3460 paramList == PL_checkav ? "CHECK"
3461 : paramList == PL_initav ? "INIT"
3463 while (PL_scopestack_ix > oldscope)
3466 Perl_croak(aTHX_ "%s", SvPVx(atsv, n_a));
3473 /* my_exit() was called */
3474 while (PL_scopestack_ix > oldscope)
3477 PL_curstash = PL_defstash;
3478 PL_curcop = &PL_compiling;
3479 CopLINE_set(PL_curcop, oldline);
3481 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
3482 if (paramList == PL_beginav)
3483 Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
3485 Perl_croak(aTHX_ "%s failed--call queue aborted",
3486 paramList == PL_checkav ? "CHECK"
3487 : paramList == PL_initav ? "INIT"
3494 PL_curcop = &PL_compiling;
3495 CopLINE_set(PL_curcop, oldline);
3498 PerlIO_printf(Perl_error_log, "panic: restartop\n");
3506 #ifdef PERL_FLEXIBLE_EXCEPTIONS
3508 S_vcall_list_body(pTHX_ va_list args)
3510 CV *cv = va_arg(args, CV*);
3511 return call_list_body(cv);
3516 S_call_list_body(pTHX_ CV *cv)
3518 PUSHMARK(PL_stack_sp);
3519 call_sv((SV*)cv, G_EVAL|G_DISCARD);
3524 Perl_my_exit(pTHX_ U32 status)
3528 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
3529 thr, (unsigned long) status));
3538 STATUS_NATIVE_SET(status);
3545 Perl_my_failure_exit(pTHX)
3548 if (vaxc$errno & 1) {
3549 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
3550 STATUS_NATIVE_SET(44);
3553 if (!vaxc$errno && errno) /* unlikely */
3554 STATUS_NATIVE_SET(44);
3556 STATUS_NATIVE_SET(vaxc$errno);
3561 STATUS_POSIX_SET(errno);
3563 exitstatus = STATUS_POSIX >> 8;
3564 if (exitstatus & 255)
3565 STATUS_POSIX_SET(exitstatus);
3567 STATUS_POSIX_SET(255);
3574 S_my_exit_jump(pTHX)
3577 register PERL_CONTEXT *cx;
3582 SvREFCNT_dec(PL_e_script);
3583 PL_e_script = Nullsv;
3586 POPSTACK_TO(PL_mainstack);
3587 if (cxstack_ix >= 0) {
3590 POPBLOCK(cx,PL_curpm);
3602 read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen)
3605 p = SvPVX(PL_e_script);
3606 nl = strchr(p, '\n');
3607 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3609 filter_del(read_e_script);
3612 sv_catpvn(buf_sv, p, nl-p);
3613 sv_chop(PL_e_script, nl);