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);
63 PERL_SET_INTERP(my_perl);
64 #if defined(USE_THREADS) || defined(USE_ITHREADS)
69 PERL_SET_THX(my_perl);
71 /* New() needs interpreter, so call malloc() instead */
72 my_perl = (PerlInterpreter*)(*ipM->pMalloc)(ipM, sizeof(PerlInterpreter));
74 PERL_SET_INTERP(my_perl);
75 #if defined(USE_THREADS) || defined(USE_ITHREADS)
80 PERL_SET_THX(my_perl);
81 Zero(my_perl, 1, PerlInterpreter);
98 =for apidoc perl_alloc
100 Allocates a new Perl interpreter. See L<perlembed>.
108 PerlInterpreter *my_perl;
110 /* New() needs interpreter, so call malloc() instead */
111 my_perl = (PerlInterpreter*)PerlMem_malloc(sizeof(PerlInterpreter));
114 PERL_SET_INTERP(my_perl);
115 #if defined(USE_THREADS) || defined(USE_ITHREADS)
120 PERL_SET_THX(my_perl);
121 Zero(my_perl, 1, PerlInterpreter);
124 #endif /* PERL_IMPLICIT_SYS */
127 =for apidoc perl_construct
129 Initializes a new Perl interpreter. See L<perlembed>.
135 perl_construct(pTHXx)
140 struct perl_thread *thr = NULL;
141 #endif /* FAKE_THREADS */
142 #endif /* USE_THREADS */
146 PL_perl_destruct_level = 1;
148 if (PL_perl_destruct_level > 0)
152 /* Init the real globals (and main thread)? */
155 MUTEX_INIT(&PL_sv_mutex);
157 * Safe to use basic SV functions from now on (though
158 * not things like mortals or tainting yet).
160 MUTEX_INIT(&PL_eval_mutex);
161 COND_INIT(&PL_eval_cond);
162 MUTEX_INIT(&PL_threads_mutex);
163 COND_INIT(&PL_nthreads_cond);
164 # ifdef EMULATE_ATOMIC_REFCOUNTS
165 MUTEX_INIT(&PL_svref_mutex);
166 # endif /* EMULATE_ATOMIC_REFCOUNTS */
168 MUTEX_INIT(&PL_cred_mutex);
170 thr = init_main_thread();
171 #endif /* USE_THREADS */
173 #ifdef PERL_FLEXIBLE_EXCEPTIONS
174 PL_protect = MEMBER_TO_FPTR(Perl_default_protect); /* for exceptions */
177 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
179 PL_linestr = NEWSV(65,79);
180 sv_upgrade(PL_linestr,SVt_PVIV);
182 if (!SvREADONLY(&PL_sv_undef)) {
183 /* set read-only and try to insure than we wont see REFCNT==0
186 SvREADONLY_on(&PL_sv_undef);
187 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
189 sv_setpv(&PL_sv_no,PL_No);
191 SvREADONLY_on(&PL_sv_no);
192 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
194 sv_setpv(&PL_sv_yes,PL_Yes);
196 SvREADONLY_on(&PL_sv_yes);
197 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
202 /* PL_sighandlerp = sighandler; */
204 PL_sighandlerp = Perl_sighandler;
206 PL_pidstatus = newHV();
210 * There is no way we can refer to them from Perl so close them to save
211 * space. The other alternative would be to provide STDAUX and STDPRN
214 (void)fclose(stdaux);
215 (void)fclose(stdprn);
219 PL_nrs = newSVpvn("\n", 1);
220 PL_rs = SvREFCNT_inc(PL_nrs);
225 PL_lex_state = LEX_NOTPARSING;
231 SET_NUMERIC_STANDARD();
235 PL_patchlevel = NEWSV(0,4);
236 SvUPGRADE(PL_patchlevel, SVt_PVNV);
237 if (PERL_REVISION > 127 || PERL_VERSION > 127 || PERL_SUBVERSION > 127)
238 SvGROW(PL_patchlevel, UTF8_MAXLEN*3+1);
239 s = (U8*)SvPVX(PL_patchlevel);
240 s = uv_to_utf8(s, (UV)PERL_REVISION);
241 s = uv_to_utf8(s, (UV)PERL_VERSION);
242 s = uv_to_utf8(s, (UV)PERL_SUBVERSION);
244 SvCUR_set(PL_patchlevel, s - (U8*)SvPVX(PL_patchlevel));
245 SvPOK_on(PL_patchlevel);
246 SvNVX(PL_patchlevel) = (NV)PERL_REVISION
247 + ((NV)PERL_VERSION / (NV)1000)
248 #if defined(PERL_SUBVERSION) && PERL_SUBVERSION > 0
249 + ((NV)PERL_SUBVERSION / (NV)1000000)
252 SvNOK_on(PL_patchlevel); /* dual valued */
253 SvUTF8_on(PL_patchlevel);
254 SvREADONLY_on(PL_patchlevel);
257 #if defined(LOCAL_PATCH_COUNT)
258 PL_localpatches = local_patches; /* For possible -v */
261 PerlIO_init(); /* Hook to IO system */
263 PL_fdpid = newAV(); /* for remembering popen pids by fd */
264 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
270 =for apidoc perl_destruct
272 Shuts down a Perl interpreter. See L<perlembed>.
281 int destruct_level; /* 0=none, 1=full, 2=full with checks */
287 #endif /* USE_THREADS */
289 /* wait for all pseudo-forked children to finish */
290 PERL_WAIT_FOR_CHILDREN;
294 /* Pass 1 on any remaining threads: detach joinables, join zombies */
296 MUTEX_LOCK(&PL_threads_mutex);
297 DEBUG_S(PerlIO_printf(Perl_debug_log,
298 "perl_destruct: waiting for %d threads...\n",
300 for (t = thr->next; t != thr; t = t->next) {
301 MUTEX_LOCK(&t->mutex);
302 switch (ThrSTATE(t)) {
305 DEBUG_S(PerlIO_printf(Perl_debug_log,
306 "perl_destruct: joining zombie %p\n", t));
307 ThrSETSTATE(t, THRf_DEAD);
308 MUTEX_UNLOCK(&t->mutex);
311 * The SvREFCNT_dec below may take a long time (e.g. av
312 * may contain an object scalar whose destructor gets
313 * called) so we have to unlock threads_mutex and start
316 MUTEX_UNLOCK(&PL_threads_mutex);
318 SvREFCNT_dec((SV*)av);
319 DEBUG_S(PerlIO_printf(Perl_debug_log,
320 "perl_destruct: joined zombie %p OK\n", t));
322 case THRf_R_JOINABLE:
323 DEBUG_S(PerlIO_printf(Perl_debug_log,
324 "perl_destruct: detaching thread %p\n", t));
325 ThrSETSTATE(t, THRf_R_DETACHED);
327 * We unlock threads_mutex and t->mutex in the opposite order
328 * from which we locked them just so that DETACH won't
329 * deadlock if it panics. It's only a breach of good style
330 * not a bug since they are unlocks not locks.
332 MUTEX_UNLOCK(&PL_threads_mutex);
334 MUTEX_UNLOCK(&t->mutex);
337 DEBUG_S(PerlIO_printf(Perl_debug_log,
338 "perl_destruct: ignoring %p (state %u)\n",
340 MUTEX_UNLOCK(&t->mutex);
341 /* fall through and out */
344 /* We leave the above "Pass 1" loop with threads_mutex still locked */
346 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
347 while (PL_nthreads > 1)
349 DEBUG_S(PerlIO_printf(Perl_debug_log,
350 "perl_destruct: final wait for %d threads\n",
352 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
354 /* At this point, we're the last thread */
355 MUTEX_UNLOCK(&PL_threads_mutex);
356 DEBUG_S(PerlIO_printf(Perl_debug_log, "perl_destruct: armageddon has arrived\n"));
357 MUTEX_DESTROY(&PL_threads_mutex);
358 COND_DESTROY(&PL_nthreads_cond);
359 #endif /* !defined(FAKE_THREADS) */
360 #endif /* USE_THREADS */
362 destruct_level = PL_perl_destruct_level;
366 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
368 if (destruct_level < i)
377 /* We must account for everything. */
379 /* Destroy the main CV and syntax tree */
381 PL_curpad = AvARRAY(PL_comppad);
382 op_free(PL_main_root);
383 PL_main_root = Nullop;
385 PL_curcop = &PL_compiling;
386 PL_main_start = Nullop;
387 SvREFCNT_dec(PL_main_cv);
391 if (PL_sv_objcount) {
393 * Try to destruct global references. We do this first so that the
394 * destructors and destructees still exist. Some sv's might remain.
395 * Non-referenced objects are on their own.
400 /* unhook hooks which will soon be, or use, destroyed data */
401 SvREFCNT_dec(PL_warnhook);
402 PL_warnhook = Nullsv;
403 SvREFCNT_dec(PL_diehook);
406 /* call exit list functions */
407 while (PL_exitlistlen-- > 0)
408 PL_exitlist[PL_exitlistlen].fn(aTHXo_ PL_exitlist[PL_exitlistlen].ptr);
410 Safefree(PL_exitlist);
412 if (destruct_level == 0){
414 DEBUG_P(debprofdump());
416 /* The exit() function will do everything that needs doing. */
420 /* loosen bonds of global variables */
423 (void)PerlIO_close(PL_rsfp);
427 /* Filters for program text */
428 SvREFCNT_dec(PL_rsfp_filters);
429 PL_rsfp_filters = Nullav;
432 PL_preprocess = FALSE;
438 PL_doswitches = FALSE;
439 PL_dowarn = G_WARN_OFF;
440 PL_doextract = FALSE;
441 PL_sawampersand = FALSE; /* must save all match strings */
444 Safefree(PL_inplace);
446 SvREFCNT_dec(PL_patchlevel);
449 SvREFCNT_dec(PL_e_script);
450 PL_e_script = Nullsv;
453 /* magical thingies */
455 Safefree(PL_ofs); /* $, */
458 Safefree(PL_ors); /* $\ */
461 SvREFCNT_dec(PL_rs); /* $/ */
464 SvREFCNT_dec(PL_nrs); /* $/ helper */
467 PL_multiline = 0; /* $* */
468 Safefree(PL_osname); /* $^O */
471 SvREFCNT_dec(PL_statname);
472 PL_statname = Nullsv;
475 /* defgv, aka *_ should be taken care of elsewhere */
477 /* clean up after study() */
478 SvREFCNT_dec(PL_lastscream);
479 PL_lastscream = Nullsv;
480 Safefree(PL_screamfirst);
482 Safefree(PL_screamnext);
486 Safefree(PL_efloatbuf);
487 PL_efloatbuf = Nullch;
490 /* startup and shutdown function lists */
491 SvREFCNT_dec(PL_beginav);
492 SvREFCNT_dec(PL_endav);
493 SvREFCNT_dec(PL_checkav);
494 SvREFCNT_dec(PL_initav);
500 /* shortcuts just get cleared */
506 PL_argvoutgv = Nullgv;
508 PL_stderrgv = Nullgv;
509 PL_last_in_gv = Nullgv;
511 PL_debstash = Nullhv;
513 /* reset so print() ends up where we expect */
516 SvREFCNT_dec(PL_argvout_stack);
517 PL_argvout_stack = Nullav;
519 SvREFCNT_dec(PL_modglobal);
520 PL_modglobal = Nullhv;
521 SvREFCNT_dec(PL_preambleav);
522 PL_preambleav = Nullav;
523 SvREFCNT_dec(PL_subname);
525 SvREFCNT_dec(PL_linestr);
527 SvREFCNT_dec(PL_pidstatus);
528 PL_pidstatus = Nullhv;
529 SvREFCNT_dec(PL_toptarget);
530 PL_toptarget = Nullsv;
531 SvREFCNT_dec(PL_bodytarget);
532 PL_bodytarget = Nullsv;
533 PL_formtarget = Nullsv;
535 /* free locale stuff */
536 #ifdef USE_LOCALE_COLLATE
537 Safefree(PL_collation_name);
538 PL_collation_name = Nullch;
541 #ifdef USE_LOCALE_NUMERIC
542 Safefree(PL_numeric_name);
543 PL_numeric_name = Nullch;
546 /* clear utf8 character classes */
547 SvREFCNT_dec(PL_utf8_alnum);
548 SvREFCNT_dec(PL_utf8_alnumc);
549 SvREFCNT_dec(PL_utf8_ascii);
550 SvREFCNT_dec(PL_utf8_alpha);
551 SvREFCNT_dec(PL_utf8_space);
552 SvREFCNT_dec(PL_utf8_cntrl);
553 SvREFCNT_dec(PL_utf8_graph);
554 SvREFCNT_dec(PL_utf8_digit);
555 SvREFCNT_dec(PL_utf8_upper);
556 SvREFCNT_dec(PL_utf8_lower);
557 SvREFCNT_dec(PL_utf8_print);
558 SvREFCNT_dec(PL_utf8_punct);
559 SvREFCNT_dec(PL_utf8_xdigit);
560 SvREFCNT_dec(PL_utf8_mark);
561 SvREFCNT_dec(PL_utf8_toupper);
562 SvREFCNT_dec(PL_utf8_tolower);
563 PL_utf8_alnum = Nullsv;
564 PL_utf8_alnumc = Nullsv;
565 PL_utf8_ascii = Nullsv;
566 PL_utf8_alpha = Nullsv;
567 PL_utf8_space = Nullsv;
568 PL_utf8_cntrl = Nullsv;
569 PL_utf8_graph = Nullsv;
570 PL_utf8_digit = Nullsv;
571 PL_utf8_upper = Nullsv;
572 PL_utf8_lower = Nullsv;
573 PL_utf8_print = Nullsv;
574 PL_utf8_punct = Nullsv;
575 PL_utf8_xdigit = Nullsv;
576 PL_utf8_mark = Nullsv;
577 PL_utf8_toupper = Nullsv;
578 PL_utf8_totitle = Nullsv;
579 PL_utf8_tolower = Nullsv;
581 if (!specialWARN(PL_compiling.cop_warnings))
582 SvREFCNT_dec(PL_compiling.cop_warnings);
583 PL_compiling.cop_warnings = Nullsv;
585 /* Prepare to destruct main symbol table. */
590 SvREFCNT_dec(PL_curstname);
591 PL_curstname = Nullsv;
593 /* clear queued errors */
594 SvREFCNT_dec(PL_errors);
598 if (destruct_level >= 2 && ckWARN_d(WARN_INTERNAL)) {
599 if (PL_scopestack_ix != 0)
600 Perl_warner(aTHX_ WARN_INTERNAL,
601 "Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
602 (long)PL_scopestack_ix);
603 if (PL_savestack_ix != 0)
604 Perl_warner(aTHX_ WARN_INTERNAL,
605 "Unbalanced saves: %ld more saves than restores\n",
606 (long)PL_savestack_ix);
607 if (PL_tmps_floor != -1)
608 Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced tmps: %ld more allocs than frees\n",
609 (long)PL_tmps_floor + 1);
610 if (cxstack_ix != -1)
611 Perl_warner(aTHX_ WARN_INTERNAL,"Unbalanced context: %ld more PUSHes than POPs\n",
612 (long)cxstack_ix + 1);
615 /* Now absolutely destruct everything, somehow or other, loops or no. */
617 SvFLAGS(PL_fdpid) |= SVTYPEMASK; /* don't clean out pid table now */
618 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
619 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
620 last_sv_count = PL_sv_count;
623 SvFLAGS(PL_fdpid) &= ~SVTYPEMASK;
624 SvFLAGS(PL_fdpid) |= SVt_PVAV;
625 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
626 SvFLAGS(PL_strtab) |= SVt_PVHV;
628 AvREAL_off(PL_fdpid); /* no surviving entries */
629 SvREFCNT_dec(PL_fdpid); /* needed in io_close() */
632 /* Destruct the global string table. */
634 /* Yell and reset the HeVAL() slots that are still holding refcounts,
635 * so that sv_free() won't fail on them.
643 max = HvMAX(PL_strtab);
644 array = HvARRAY(PL_strtab);
647 if (hent && ckWARN_d(WARN_INTERNAL)) {
648 Perl_warner(aTHX_ WARN_INTERNAL,
649 "Unbalanced string table refcount: (%d) for \"%s\"",
650 HeVAL(hent) - Nullsv, HeKEY(hent));
651 HeVAL(hent) = Nullsv;
661 SvREFCNT_dec(PL_strtab);
663 /* free special SVs */
665 SvREFCNT(&PL_sv_yes) = 0;
666 sv_clear(&PL_sv_yes);
667 SvANY(&PL_sv_yes) = NULL;
669 SvREFCNT(&PL_sv_no) = 0;
671 SvANY(&PL_sv_no) = NULL;
673 if (PL_sv_count != 0 && ckWARN_d(WARN_INTERNAL))
674 Perl_warner(aTHX_ WARN_INTERNAL,"Scalars leaked: %ld\n", (long)PL_sv_count);
678 /* No SVs have survived, need to clean out */
679 Safefree(PL_origfilename);
680 Safefree(PL_reg_start_tmp);
682 Safefree(PL_reg_curpm);
683 Safefree(PL_reg_poscache);
684 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
685 Safefree(PL_op_mask);
687 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
689 DEBUG_P(debprofdump());
691 MUTEX_DESTROY(&PL_strtab_mutex);
692 MUTEX_DESTROY(&PL_sv_mutex);
693 MUTEX_DESTROY(&PL_eval_mutex);
694 MUTEX_DESTROY(&PL_cred_mutex);
695 COND_DESTROY(&PL_eval_cond);
696 #ifdef EMULATE_ATOMIC_REFCOUNTS
697 MUTEX_DESTROY(&PL_svref_mutex);
698 #endif /* EMULATE_ATOMIC_REFCOUNTS */
700 /* As the penultimate thing, free the non-arena SV for thrsv */
701 Safefree(SvPVX(PL_thrsv));
702 Safefree(SvANY(PL_thrsv));
705 #endif /* USE_THREADS */
707 /* As the absolutely last thing, free the non-arena SV for mess() */
710 /* it could have accumulated taint magic */
711 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
714 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
715 moremagic = mg->mg_moremagic;
716 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
717 Safefree(mg->mg_ptr);
721 /* we know that type >= SVt_PV */
722 SvOOK_off(PL_mess_sv);
723 Safefree(SvPVX(PL_mess_sv));
724 Safefree(SvANY(PL_mess_sv));
725 Safefree(PL_mess_sv);
731 =for apidoc perl_free
733 Releases a Perl interpreter. See L<perlembed>.
741 #if defined(PERL_OBJECT)
749 Perl_call_atexit(pTHX_ ATEXIT_t fn, void *ptr)
751 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
752 PL_exitlist[PL_exitlistlen].fn = fn;
753 PL_exitlist[PL_exitlistlen].ptr = ptr;
758 =for apidoc perl_parse
760 Tells a Perl interpreter to parse a Perl script. See L<perlembed>.
766 perl_parse(pTHXx_ XSINIT_t xsinit, int argc, char **argv, char **env)
776 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
779 Perl_croak(aTHX_ "suidperl is no longer needed since the kernel can now execute\n\
780 setuid perl scripts securely.\n");
784 #if defined(__DYNAMIC__) && (defined(NeXT) || defined(__NeXT__))
785 _dyld_lookup_and_bind
786 ("__environ", (unsigned long *) &environ_pointer, NULL);
791 #ifndef VMS /* VMS doesn't have environ array */
792 PL_origenviron = environ;
797 /* Come here if running an undumped a.out. */
799 PL_origfilename = savepv(argv[0]);
800 PL_do_undump = FALSE;
801 cxstack_ix = -1; /* start label stack again */
803 init_postdump_symbols(argc,argv,env);
808 PL_curpad = AvARRAY(PL_comppad);
809 op_free(PL_main_root);
810 PL_main_root = Nullop;
812 PL_main_start = Nullop;
813 SvREFCNT_dec(PL_main_cv);
817 oldscope = PL_scopestack_ix;
818 PL_dowarn = G_WARN_OFF;
820 #ifdef PERL_FLEXIBLE_EXCEPTIONS
821 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vparse_body), env, xsinit);
827 #ifndef PERL_FLEXIBLE_EXCEPTIONS
828 parse_body(env,xsinit);
831 call_list(oldscope, PL_checkav);
838 /* my_exit() was called */
839 while (PL_scopestack_ix > oldscope)
842 PL_curstash = PL_defstash;
844 call_list(oldscope, PL_checkav);
845 ret = STATUS_NATIVE_EXPORT;
848 PerlIO_printf(Perl_error_log, "panic: top_env\n");
856 #ifdef PERL_FLEXIBLE_EXCEPTIONS
858 S_vparse_body(pTHX_ va_list args)
860 char **env = va_arg(args, char**);
861 XSINIT_t xsinit = va_arg(args, XSINIT_t);
863 return parse_body(env, xsinit);
868 S_parse_body(pTHX_ char **env, XSINIT_t xsinit)
871 int argc = PL_origargc;
872 char **argv = PL_origargv;
873 char *scriptname = NULL;
875 VOL bool dosearch = FALSE;
880 char *cddir = Nullch;
882 sv_setpvn(PL_linestr,"",0);
883 sv = newSVpvn("",0); /* first used for -I flags */
887 for (argc--,argv++; argc > 0; argc--,argv++) {
888 if (argv[0][0] != '-' || !argv[0][1])
892 validarg = " PHOOEY ";
899 #ifndef PERL_STRICT_CR
924 if (s = moreswitches(s))
934 if (PL_euid != PL_uid || PL_egid != PL_gid)
935 Perl_croak(aTHX_ "No -e allowed in setuid scripts");
937 PL_e_script = newSVpvn("",0);
938 filter_add(read_e_script, NULL);
941 sv_catpv(PL_e_script, s);
943 sv_catpv(PL_e_script, argv[1]);
947 Perl_croak(aTHX_ "No code specified for -e");
948 sv_catpv(PL_e_script, "\n");
951 case 'I': /* -I handled both here and in moreswitches() */
953 if (!*++s && (s=argv[1]) != Nullch) {
958 STRLEN len = strlen(s);
961 sv_catpvn(sv, "-I", 2);
962 sv_catpvn(sv, p, len);
963 sv_catpvn(sv, " ", 1);
967 Perl_croak(aTHX_ "No directory specified for -I");
971 PL_preprocess = TRUE;
981 PL_preambleav = newAV();
982 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
984 PL_Sv = newSVpv("print myconfig();",0);
986 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
988 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
990 sv_catpv(PL_Sv,"\" Compile-time options:");
992 sv_catpv(PL_Sv," DEBUGGING");
995 sv_catpv(PL_Sv," MULTIPLICITY");
998 sv_catpv(PL_Sv," USE_THREADS");
1000 # ifdef USE_ITHREADS
1001 sv_catpv(PL_Sv," USE_ITHREADS");
1003 # ifdef USE_64_BIT_INT
1004 sv_catpv(PL_Sv," USE_64_BIT_INT");
1006 # ifdef USE_64_BIT_ALL
1007 sv_catpv(PL_Sv," USE_64_BIT_ALL");
1009 # ifdef USE_LONG_DOUBLE
1010 sv_catpv(PL_Sv," USE_LONG_DOUBLE");
1012 # ifdef USE_LARGE_FILES
1013 sv_catpv(PL_Sv," USE_LARGE_FILES");
1016 sv_catpv(PL_Sv," USE_SOCKS");
1019 sv_catpv(PL_Sv," PERL_OBJECT");
1021 # ifdef PERL_IMPLICIT_CONTEXT
1022 sv_catpv(PL_Sv," PERL_IMPLICIT_CONTEXT");
1024 # ifdef PERL_IMPLICIT_SYS
1025 sv_catpv(PL_Sv," PERL_IMPLICIT_SYS");
1027 sv_catpv(PL_Sv,"\\n\",");
1029 #if defined(LOCAL_PATCH_COUNT)
1030 if (LOCAL_PATCH_COUNT > 0) {
1032 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
1033 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
1034 if (PL_localpatches[i])
1035 Perl_sv_catpvf(aTHX_ PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
1039 Perl_sv_catpvf(aTHX_ PL_Sv,"\" Built under %s\\n\"",OSNAME);
1042 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
1044 Perl_sv_catpvf(aTHX_ PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
1047 sv_catpv(PL_Sv, "; \
1049 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
1050 print \" \\%ENV:\\n @env\\n\" if @env; \
1051 print \" \\@INC:\\n @INC\\n\";");
1054 PL_Sv = newSVpv("config_vars(qw(",0);
1055 sv_catpv(PL_Sv, ++s);
1056 sv_catpv(PL_Sv, "))");
1059 av_push(PL_preambleav, PL_Sv);
1060 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1063 PL_doextract = TRUE;
1071 if (!*++s || isSPACE(*s)) {
1075 /* catch use of gnu style long options */
1076 if (strEQ(s, "version")) {
1080 if (strEQ(s, "help")) {
1087 Perl_croak(aTHX_ "Unrecognized switch: -%s (-h will show valid options)",s);
1093 #ifndef SECURE_INTERNAL_GETENV
1096 (s = PerlEnv_getenv("PERL5OPT")))
1100 if (*s == '-' && *(s+1) == 'T')
1113 if (!strchr("DIMUdmw", *s))
1114 Perl_croak(aTHX_ "Illegal switch in PERL5OPT: -%c", *s);
1115 s = moreswitches(s);
1121 scriptname = argv[0];
1124 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
1126 else if (scriptname == Nullch) {
1128 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
1136 open_script(scriptname,dosearch,sv,&fdscript);
1138 validate_suid(validarg, scriptname,fdscript);
1140 #if defined(SIGCHLD) || defined(SIGCLD)
1143 # define SIGCHLD SIGCLD
1145 Sighandler_t sigstate = rsignal_state(SIGCHLD);
1146 if (sigstate == SIG_IGN) {
1147 if (ckWARN(WARN_SIGNAL))
1148 Perl_warner(aTHX_ WARN_SIGNAL,
1149 "Can't ignore signal CHLD, forcing to default");
1150 (void)rsignal(SIGCHLD, (Sighandler_t)SIG_DFL);
1157 if (cddir && PerlDir_chdir(cddir) < 0)
1158 Perl_croak(aTHX_ "Can't chdir to %s",cddir);
1162 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
1163 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
1164 CvUNIQUE_on(PL_compcv);
1166 PL_comppad = newAV();
1167 av_push(PL_comppad, Nullsv);
1168 PL_curpad = AvARRAY(PL_comppad);
1169 PL_comppad_name = newAV();
1170 PL_comppad_name_fill = 0;
1171 PL_min_intro_pending = 0;
1174 av_store(PL_comppad_name, 0, newSVpvn("@_", 2));
1175 PL_curpad[0] = (SV*)newAV();
1176 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
1177 CvOWNER(PL_compcv) = 0;
1178 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
1179 MUTEX_INIT(CvMUTEXP(PL_compcv));
1180 #endif /* USE_THREADS */
1182 comppadlist = newAV();
1183 AvREAL_off(comppadlist);
1184 av_store(comppadlist, 0, (SV*)PL_comppad_name);
1185 av_store(comppadlist, 1, (SV*)PL_comppad);
1186 CvPADLIST(PL_compcv) = comppadlist;
1188 boot_core_UNIVERSAL();
1190 boot_core_xsutils();
1194 (*xsinit)(aTHXo); /* in case linked C routines want magical variables */
1195 #if defined(VMS) || defined(WIN32) || defined(DJGPP) || defined(__CYGWIN__)
1203 init_predump_symbols();
1204 /* init_postdump_symbols not currently designed to be called */
1205 /* more than once (ENV isn't cleared first, for example) */
1206 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
1208 init_postdump_symbols(argc,argv,env);
1212 /* now parse the script */
1214 SETERRNO(0,SS$_NORMAL);
1216 if (yyparse() || PL_error_count) {
1218 Perl_croak(aTHX_ "%s had compilation errors.\n", PL_origfilename);
1220 Perl_croak(aTHX_ "Execution of %s aborted due to compilation errors.\n",
1224 CopLINE_set(PL_curcop, 0);
1225 PL_curstash = PL_defstash;
1226 PL_preprocess = FALSE;
1228 SvREFCNT_dec(PL_e_script);
1229 PL_e_script = Nullsv;
1232 /* now that script is parsed, we can modify record separator */
1233 SvREFCNT_dec(PL_rs);
1234 PL_rs = SvREFCNT_inc(PL_nrs);
1235 sv_setsv(get_sv("/", TRUE), PL_rs);
1240 SAVECOPFILE(PL_curcop);
1241 SAVECOPLINE(PL_curcop);
1242 gv_check(PL_defstash);
1249 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1250 dump_mstats("after compilation:");
1259 =for apidoc perl_run
1261 Tells a Perl interpreter to run. See L<perlembed>.
1277 oldscope = PL_scopestack_ix;
1279 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1281 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vrun_body), oldscope);
1287 cxstack_ix = -1; /* start context stack again */
1289 case 0: /* normal completion */
1290 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1295 case 2: /* my_exit() */
1296 while (PL_scopestack_ix > oldscope)
1299 PL_curstash = PL_defstash;
1300 if (PL_endav && !PL_minus_c)
1301 call_list(oldscope, PL_endav);
1303 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1304 dump_mstats("after execution: ");
1306 ret = STATUS_NATIVE_EXPORT;
1310 POPSTACK_TO(PL_mainstack);
1313 PerlIO_printf(Perl_error_log, "panic: restartop\n");
1323 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1325 S_vrun_body(pTHX_ va_list args)
1327 I32 oldscope = va_arg(args, I32);
1329 return run_body(oldscope);
1335 S_run_body(pTHX_ I32 oldscope)
1339 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1340 PL_sawampersand ? "Enabling" : "Omitting"));
1342 if (!PL_restartop) {
1343 DEBUG_x(dump_all());
1344 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1345 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%"UVxf"\n",
1349 PerlIO_printf(Perl_error_log, "%s syntax OK\n", PL_origfilename);
1352 if (PERLDB_SINGLE && PL_DBsingle)
1353 sv_setiv(PL_DBsingle, 1);
1355 call_list(oldscope, PL_initav);
1361 PL_op = PL_restartop;
1365 else if (PL_main_start) {
1366 CvDEPTH(PL_main_cv) = 1;
1367 PL_op = PL_main_start;
1377 =for apidoc p||get_sv
1379 Returns the SV of the specified Perl scalar. If C<create> is set and the
1380 Perl variable does not exist then it will be created. If C<create> is not
1381 set and the variable does not exist then NULL is returned.
1387 Perl_get_sv(pTHX_ const char *name, I32 create)
1391 if (name[1] == '\0' && !isALPHA(name[0])) {
1392 PADOFFSET tmp = find_threadsv(name);
1393 if (tmp != NOT_IN_PAD) {
1395 return THREADSV(tmp);
1398 #endif /* USE_THREADS */
1399 gv = gv_fetchpv(name, create, SVt_PV);
1406 =for apidoc p||get_av
1408 Returns the AV of the specified Perl array. If C<create> is set and the
1409 Perl variable does not exist then it will be created. If C<create> is not
1410 set and the variable does not exist then NULL is returned.
1416 Perl_get_av(pTHX_ const char *name, I32 create)
1418 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1427 =for apidoc p||get_hv
1429 Returns the HV of the specified Perl hash. If C<create> is set and the
1430 Perl variable does not exist then it will be created. If C<create> is not
1431 set and the variable does not exist then NULL is returned.
1437 Perl_get_hv(pTHX_ const char *name, I32 create)
1439 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1448 =for apidoc p||get_cv
1450 Returns the CV of the specified Perl subroutine. If C<create> is set and
1451 the Perl subroutine does not exist then it will be declared (which has the
1452 same effect as saying C<sub name;>). If C<create> is not set and the
1453 subroutine does not exist then NULL is returned.
1459 Perl_get_cv(pTHX_ const char *name, I32 create)
1461 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1462 /* XXX unsafe for threads if eval_owner isn't held */
1463 /* XXX this is probably not what they think they're getting.
1464 * It has the same effect as "sub name;", i.e. just a forward
1466 if (create && !GvCVu(gv))
1467 return newSUB(start_subparse(FALSE, 0),
1468 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1476 /* Be sure to refetch the stack pointer after calling these routines. */
1479 =for apidoc p||call_argv
1481 Performs a callback to the specified Perl sub. See L<perlcall>.
1487 Perl_call_argv(pTHX_ const char *sub_name, I32 flags, register char **argv)
1489 /* See G_* flags in cop.h */
1490 /* null terminated arg list */
1497 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1502 return call_pv(sub_name, flags);
1506 =for apidoc p||call_pv
1508 Performs a callback to the specified Perl sub. See L<perlcall>.
1514 Perl_call_pv(pTHX_ const char *sub_name, I32 flags)
1515 /* name of the subroutine */
1516 /* See G_* flags in cop.h */
1518 return call_sv((SV*)get_cv(sub_name, TRUE), flags);
1522 =for apidoc p||call_method
1524 Performs a callback to the specified Perl method. The blessed object must
1525 be on the stack. See L<perlcall>.
1531 Perl_call_method(pTHX_ const char *methname, I32 flags)
1532 /* name of the subroutine */
1533 /* See G_* flags in cop.h */
1541 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1546 return call_sv(*PL_stack_sp--, flags);
1549 /* May be called with any of a CV, a GV, or an SV containing the name. */
1551 =for apidoc p||call_sv
1553 Performs a callback to the Perl sub whose name is in the SV. See
1560 Perl_call_sv(pTHX_ SV *sv, I32 flags)
1562 /* See G_* flags in cop.h */
1565 LOGOP myop; /* fake syntax tree node */
1569 bool oldcatch = CATCH_GET;
1574 if (flags & G_DISCARD) {
1579 Zero(&myop, 1, LOGOP);
1580 myop.op_next = Nullop;
1581 if (!(flags & G_NOARGS))
1582 myop.op_flags |= OPf_STACKED;
1583 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1584 (flags & G_ARRAY) ? OPf_WANT_LIST :
1589 EXTEND(PL_stack_sp, 1);
1590 *++PL_stack_sp = sv;
1592 oldscope = PL_scopestack_ix;
1594 if (PERLDB_SUB && PL_curstash != PL_debstash
1595 /* Handle first BEGIN of -d. */
1596 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1597 /* Try harder, since this may have been a sighandler, thus
1598 * curstash may be meaningless. */
1599 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1600 && !(flags & G_NODEBUG))
1601 PL_op->op_private |= OPpENTERSUB_DB;
1603 if (!(flags & G_EVAL)) {
1605 call_body((OP*)&myop, FALSE);
1606 retval = PL_stack_sp - (PL_stack_base + oldmark);
1607 CATCH_SET(oldcatch);
1610 cLOGOP->op_other = PL_op;
1612 /* we're trying to emulate pp_entertry() here */
1614 register PERL_CONTEXT *cx;
1615 I32 gimme = GIMME_V;
1620 push_return(PL_op->op_next);
1621 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1623 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1625 PL_in_eval = EVAL_INEVAL;
1626 if (flags & G_KEEPERR)
1627 PL_in_eval |= EVAL_KEEPERR;
1633 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1635 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1642 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1644 call_body((OP*)&myop, FALSE);
1646 retval = PL_stack_sp - (PL_stack_base + oldmark);
1647 if (!(flags & G_KEEPERR))
1654 /* my_exit() was called */
1655 PL_curstash = PL_defstash;
1658 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1659 Perl_croak(aTHX_ "Callback called exit");
1664 PL_op = PL_restartop;
1668 PL_stack_sp = PL_stack_base + oldmark;
1669 if (flags & G_ARRAY)
1673 *++PL_stack_sp = &PL_sv_undef;
1678 if (PL_scopestack_ix > oldscope) {
1682 register PERL_CONTEXT *cx;
1694 if (flags & G_DISCARD) {
1695 PL_stack_sp = PL_stack_base + oldmark;
1704 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1706 S_vcall_body(pTHX_ va_list args)
1708 OP *myop = va_arg(args, OP*);
1709 int is_eval = va_arg(args, int);
1711 call_body(myop, is_eval);
1717 S_call_body(pTHX_ OP *myop, int is_eval)
1721 if (PL_op == myop) {
1723 PL_op = Perl_pp_entereval(aTHX);
1725 PL_op = Perl_pp_entersub(aTHX);
1731 /* Eval a string. The G_EVAL flag is always assumed. */
1734 =for apidoc p||eval_sv
1736 Tells Perl to C<eval> the string in the SV.
1742 Perl_eval_sv(pTHX_ SV *sv, I32 flags)
1744 /* See G_* flags in cop.h */
1747 UNOP myop; /* fake syntax tree node */
1748 I32 oldmark = SP - PL_stack_base;
1755 if (flags & G_DISCARD) {
1762 Zero(PL_op, 1, UNOP);
1763 EXTEND(PL_stack_sp, 1);
1764 *++PL_stack_sp = sv;
1765 oldscope = PL_scopestack_ix;
1767 if (!(flags & G_NOARGS))
1768 myop.op_flags = OPf_STACKED;
1769 myop.op_next = Nullop;
1770 myop.op_type = OP_ENTEREVAL;
1771 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1772 (flags & G_ARRAY) ? OPf_WANT_LIST :
1774 if (flags & G_KEEPERR)
1775 myop.op_flags |= OPf_SPECIAL;
1777 #ifdef PERL_FLEXIBLE_EXCEPTIONS
1779 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_body),
1786 #ifndef PERL_FLEXIBLE_EXCEPTIONS
1788 call_body((OP*)&myop,TRUE);
1790 retval = PL_stack_sp - (PL_stack_base + oldmark);
1791 if (!(flags & G_KEEPERR))
1798 /* my_exit() was called */
1799 PL_curstash = PL_defstash;
1802 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED))
1803 Perl_croak(aTHX_ "Callback called exit");
1808 PL_op = PL_restartop;
1812 PL_stack_sp = PL_stack_base + oldmark;
1813 if (flags & G_ARRAY)
1817 *++PL_stack_sp = &PL_sv_undef;
1823 if (flags & G_DISCARD) {
1824 PL_stack_sp = PL_stack_base + oldmark;
1834 =for apidoc p||eval_pv
1836 Tells Perl to C<eval> the given string and return an SV* result.
1842 Perl_eval_pv(pTHX_ const char *p, I32 croak_on_error)
1845 SV* sv = newSVpv(p, 0);
1848 eval_sv(sv, G_SCALAR);
1855 if (croak_on_error && SvTRUE(ERRSV)) {
1857 Perl_croak(aTHX_ SvPVx(ERRSV, n_a));
1863 /* Require a module. */
1866 =for apidoc p||require_pv
1868 Tells Perl to C<require> a module.
1874 Perl_require_pv(pTHX_ const char *pv)
1878 PUSHSTACKi(PERLSI_REQUIRE);
1880 sv = sv_newmortal();
1881 sv_setpv(sv, "require '");
1884 eval_sv(sv, G_DISCARD);
1890 Perl_magicname(pTHX_ char *sym, char *name, I32 namlen)
1894 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1895 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1899 S_usage(pTHX_ char *name) /* XXX move this out into a module ? */
1901 /* This message really ought to be max 23 lines.
1902 * Removed -h because the user already knows that opton. Others? */
1904 static char *usage_msg[] = {
1905 "-0[octal] specify record separator (\\0, if no argument)",
1906 "-a autosplit mode with -n or -p (splits $_ into @F)",
1907 "-C enable native wide character system interfaces",
1908 "-c check syntax only (runs BEGIN and END blocks)",
1909 "-d[:debugger] run program under debugger",
1910 "-D[number/list] set debugging flags (argument is a bit mask or alphabets)",
1911 "-e 'command' one line of program (several -e's allowed, omit programfile)",
1912 "-F/pattern/ split() pattern for -a switch (//'s are optional)",
1913 "-i[extension] edit <> files in place (makes backup if extension supplied)",
1914 "-Idirectory specify @INC/#include directory (several -I's allowed)",
1915 "-l[octal] enable line ending processing, specifies line terminator",
1916 "-[mM][-]module execute `use/no module...' before executing program",
1917 "-n assume 'while (<>) { ... }' loop around program",
1918 "-p assume loop like -n but print line also, like sed",
1919 "-P run program through C preprocessor before compilation",
1920 "-s enable rudimentary parsing for switches after programfile",
1921 "-S look for programfile using PATH environment variable",
1922 "-T enable tainting checks",
1923 "-u dump core after parsing program",
1924 "-U allow unsafe operations",
1925 "-v print version, subversion (includes VERY IMPORTANT perl info)",
1926 "-V[:variable] print configuration summary (or a single Config.pm variable)",
1927 "-w enable many useful warnings (RECOMMENDED)",
1928 "-W enable all warnings",
1929 "-X disable all warnings",
1930 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1934 char **p = usage_msg;
1936 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1938 printf("\n %s", *p++);
1941 /* This routine handles any switches that can be given during run */
1944 Perl_moreswitches(pTHX_ char *s)
1953 rschar = (U32)scan_oct(s, 4, &numlen);
1954 SvREFCNT_dec(PL_nrs);
1955 if (rschar & ~((U8)~0))
1956 PL_nrs = &PL_sv_undef;
1957 else if (!rschar && numlen >= 2)
1958 PL_nrs = newSVpvn("", 0);
1961 PL_nrs = newSVpvn(&ch, 1);
1966 PL_widesyscalls = TRUE;
1971 PL_splitstr = savepv(s + 1);
1985 if (*s == ':' || *s == '=') {
1986 my_setenv("PERL5DB", Perl_form(aTHX_ "use Devel::%s;", ++s));
1990 PL_perldb = PERLDB_ALL;
1998 if (isALPHA(s[1])) {
1999 static char debopts[] = "psltocPmfrxuLHXDS";
2002 for (s++; *s && (d = strchr(debopts,*s)); s++)
2003 PL_debug |= 1 << (d - debopts);
2006 PL_debug = atoi(s+1);
2007 for (s++; isDIGIT(*s); s++) ;
2009 PL_debug |= 0x80000000;
2012 if (ckWARN_d(WARN_DEBUGGING))
2013 Perl_warner(aTHX_ WARN_DEBUGGING,
2014 "Recompile perl with -DDEBUGGING to use -D switch\n");
2015 for (s++; isALNUM(*s); s++) ;
2021 usage(PL_origargv[0]);
2025 Safefree(PL_inplace);
2026 PL_inplace = savepv(s+1);
2028 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
2031 if (*s == '-') /* Additional switches on #! line. */
2035 case 'I': /* -I handled both here and in parse_perl() */
2038 while (*s && isSPACE(*s))
2043 /* ignore trailing spaces (possibly followed by other switches) */
2045 for (e = p; *e && !isSPACE(*e); e++) ;
2049 } while (*p && *p != '-');
2050 e = savepvn(s, e-s);
2058 Perl_croak(aTHX_ "No directory specified for -I");
2066 PL_ors = savepv("\n");
2068 *PL_ors = (char)scan_oct(s, 3 + (*s == '0'), &numlen);
2073 if (RsPARA(PL_nrs)) {
2078 PL_ors = SvPV(PL_nrs, PL_orslen);
2079 PL_ors = savepvn(PL_ors, PL_orslen);
2083 forbid_setid("-M"); /* XXX ? */
2086 forbid_setid("-m"); /* XXX ? */
2091 /* -M-foo == 'no foo' */
2092 if (*s == '-') { use = "no "; ++s; }
2093 sv = newSVpv(use,0);
2095 /* We allow -M'Module qw(Foo Bar)' */
2096 while(isALNUM(*s) || *s==':') ++s;
2098 sv_catpv(sv, start);
2099 if (*(start-1) == 'm') {
2101 Perl_croak(aTHX_ "Can't use '%c' after -mname", *s);
2102 sv_catpv( sv, " ()");
2105 sv_catpvn(sv, start, s-start);
2106 sv_catpv(sv, " split(/,/,q{");
2112 PL_preambleav = newAV();
2113 av_push(PL_preambleav, sv);
2116 Perl_croak(aTHX_ "No space allowed after -%c", *(s-1));
2128 PL_doswitches = TRUE;
2133 Perl_croak(aTHX_ "Too late for \"-T\" option");
2137 PL_do_undump = TRUE;
2145 printf(Perl_form(aTHX_ "\nThis is perl, v%vd built for %s",
2146 PL_patchlevel, ARCHNAME));
2147 #if defined(LOCAL_PATCH_COUNT)
2148 if (LOCAL_PATCH_COUNT > 0)
2149 printf("\n(with %d registered patch%s, see perl -V for more detail)",
2150 (int)LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
2153 printf("\n\nCopyright 1987-2000, Larry Wall\n");
2155 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
2158 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
2159 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1999\n");
2162 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
2163 "Version 5 port Copyright (c) 1994-1999, Andreas Kaiser, Ilya Zakharevich\n");
2166 printf("atariST series port, ++jrb bammi@cadence.com\n");
2169 printf("BeOS port Copyright Tom Spindler, 1997-1999\n");
2172 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1999\n");
2175 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1999\n");
2178 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1999\n");
2181 printf("VM/ESA port by Neale Ferguson, 1998-1999\n");
2184 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998-1999\n");
2187 printf("MiNT port by Guido Flohr, 1997-1999\n");
2190 printf("EPOC port by Olaf Flebbe, 1999-2000\n");
2192 #ifdef BINARY_BUILD_NOTICE
2193 BINARY_BUILD_NOTICE;
2196 Perl may be copied only under the terms of either the Artistic License or the\n\
2197 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
2198 Complete documentation for Perl, including FAQ lists, should be found on\n\
2199 this system using `man perl' or `perldoc perl'. If you have access to the\n\
2200 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
2203 if (! (PL_dowarn & G_WARN_ALL_MASK))
2204 PL_dowarn |= G_WARN_ON;
2208 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
2209 PL_compiling.cop_warnings = WARN_ALL ;
2213 PL_dowarn = G_WARN_ALL_OFF;
2214 PL_compiling.cop_warnings = WARN_NONE ;
2219 if (s[1] == '-') /* Additional switches on #! line. */
2224 #if defined(WIN32) || !defined(PERL_STRICT_CR)
2230 #ifdef ALTERNATE_SHEBANG
2231 case 'S': /* OS/2 needs -S on "extproc" line. */
2239 Perl_croak(aTHX_ "Can't emulate -%.1s on #! line",s);
2244 /* compliments of Tom Christiansen */
2246 /* unexec() can be found in the Gnu emacs distribution */
2247 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
2250 Perl_my_unexec(pTHX)
2258 prog = newSVpv(BIN_EXP, 0);
2259 sv_catpv(prog, "/perl");
2260 file = newSVpv(PL_origfilename, 0);
2261 sv_catpv(file, ".perldump");
2263 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
2264 /* unexec prints msg to stderr in case of failure */
2265 PerlProc_exit(status);
2268 # include <lib$routines.h>
2269 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
2271 ABORT(); /* for use with undump */
2276 /* initialize curinterp */
2281 #ifdef PERL_OBJECT /* XXX kludge */
2284 PL_chopset = " \n-"; \
2285 PL_copline = NOLINE; \
2286 PL_curcop = &PL_compiling;\
2287 PL_curcopdb = NULL; \
2289 PL_dumpindent = 4; \
2290 PL_laststatval = -1; \
2291 PL_laststype = OP_STAT; \
2292 PL_maxscream = -1; \
2293 PL_maxsysfd = MAXSYSFD; \
2294 PL_statname = Nullsv; \
2295 PL_tmps_floor = -1; \
2297 PL_op_mask = NULL; \
2298 PL_laststatval = -1; \
2299 PL_laststype = OP_STAT; \
2300 PL_mess_sv = Nullsv; \
2301 PL_splitstr = " "; \
2302 PL_generation = 100; \
2303 PL_exitlist = NULL; \
2304 PL_exitlistlen = 0; \
2306 PL_in_clean_objs = FALSE; \
2307 PL_in_clean_all = FALSE; \
2308 PL_profiledata = NULL; \
2310 PL_rsfp_filters = Nullav; \
2315 # ifdef MULTIPLICITY
2316 # define PERLVAR(var,type)
2317 # define PERLVARA(var,n,type)
2318 # if defined(PERL_IMPLICIT_CONTEXT)
2319 # if defined(USE_THREADS)
2320 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2321 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2322 # else /* !USE_THREADS */
2323 # define PERLVARI(var,type,init) aTHX->var = init;
2324 # define PERLVARIC(var,type,init) aTHX->var = init;
2325 # endif /* USE_THREADS */
2327 # define PERLVARI(var,type,init) PERL_GET_INTERP->var = init;
2328 # define PERLVARIC(var,type,init) PERL_GET_INTERP->var = init;
2330 # include "intrpvar.h"
2331 # ifndef USE_THREADS
2332 # include "thrdvar.h"
2339 # define PERLVAR(var,type)
2340 # define PERLVARA(var,n,type)
2341 # define PERLVARI(var,type,init) PL_##var = init;
2342 # define PERLVARIC(var,type,init) PL_##var = init;
2343 # include "intrpvar.h"
2344 # ifndef USE_THREADS
2345 # include "thrdvar.h"
2357 S_init_main_stash(pTHX)
2362 /* Note that strtab is a rather special HV. Assumptions are made
2363 about not iterating on it, and not adding tie magic to it.
2364 It is properly deallocated in perl_destruct() */
2365 PL_strtab = newHV();
2367 MUTEX_INIT(&PL_strtab_mutex);
2369 HvSHAREKEYS_off(PL_strtab); /* mandatory */
2370 hv_ksplit(PL_strtab, 512);
2372 PL_curstash = PL_defstash = newHV();
2373 PL_curstname = newSVpvn("main",4);
2374 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
2375 SvREFCNT_dec(GvHV(gv));
2376 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
2378 HvNAME(PL_defstash) = savepv("main");
2379 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
2380 GvMULTI_on(PL_incgv);
2381 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
2382 GvMULTI_on(PL_hintgv);
2383 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
2384 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
2385 GvMULTI_on(PL_errgv);
2386 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
2387 GvMULTI_on(PL_replgv);
2388 (void)Perl_form(aTHX_ "%240s",""); /* Preallocate temp - for immediate signals. */
2389 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
2390 sv_setpvn(ERRSV, "", 0);
2391 PL_curstash = PL_defstash;
2392 CopSTASH_set(&PL_compiling, PL_defstash);
2393 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
2394 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
2395 /* We must init $/ before switches are processed. */
2396 sv_setpvn(get_sv("/", TRUE), "\n", 1);
2400 S_open_script(pTHX_ char *scriptname, bool dosearch, SV *sv, int *fdscript)
2408 PL_origfilename = savepv("-e");
2411 /* if find_script() returns, it returns a malloc()-ed value */
2412 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
2414 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
2415 char *s = scriptname + 8;
2416 *fdscript = atoi(s);
2420 scriptname = savepv(s + 1);
2421 Safefree(PL_origfilename);
2422 PL_origfilename = scriptname;
2427 CopFILE_set(PL_curcop, PL_origfilename);
2428 if (strEQ(PL_origfilename,"-"))
2430 if (*fdscript >= 0) {
2431 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
2432 #if defined(HAS_FCNTL) && defined(F_SETFD)
2434 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2437 else if (PL_preprocess) {
2438 char *cpp_cfg = CPPSTDIN;
2439 SV *cpp = newSVpvn("",0);
2440 SV *cmd = NEWSV(0,0);
2442 if (strEQ(cpp_cfg, "cppstdin"))
2443 Perl_sv_catpvf(aTHX_ cpp, "%s/", BIN_EXP);
2444 sv_catpv(cpp, cpp_cfg);
2446 sv_catpvn(sv, "-I", 2);
2447 sv_catpv(sv,PRIVLIB_EXP);
2450 Perl_sv_setpvf(aTHX_ cmd, "\
2451 sed %s -e \"/^[^#]/b\" \
2452 -e \"/^#[ ]*include[ ]/b\" \
2453 -e \"/^#[ ]*define[ ]/b\" \
2454 -e \"/^#[ ]*if[ ]/b\" \
2455 -e \"/^#[ ]*ifdef[ ]/b\" \
2456 -e \"/^#[ ]*ifndef[ ]/b\" \
2457 -e \"/^#[ ]*else/b\" \
2458 -e \"/^#[ ]*elif[ ]/b\" \
2459 -e \"/^#[ ]*undef[ ]/b\" \
2460 -e \"/^#[ ]*endif/b\" \
2462 %s | %"SVf" -C %"SVf" %s",
2463 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2466 Perl_sv_setpvf(aTHX_ cmd, "\
2467 %s %s -e '/^[^#]/b' \
2468 -e '/^#[ ]*include[ ]/b' \
2469 -e '/^#[ ]*define[ ]/b' \
2470 -e '/^#[ ]*if[ ]/b' \
2471 -e '/^#[ ]*ifdef[ ]/b' \
2472 -e '/^#[ ]*ifndef[ ]/b' \
2473 -e '/^#[ ]*else/b' \
2474 -e '/^#[ ]*elif[ ]/b' \
2475 -e '/^#[ ]*undef[ ]/b' \
2476 -e '/^#[ ]*endif/b' \
2478 %s | %"SVf" %"SVf" %s",
2480 Perl_sv_setpvf(aTHX_ cmd, "\
2481 %s %s -e '/^[^#]/b' \
2482 -e '/^#[ ]*include[ ]/b' \
2483 -e '/^#[ ]*define[ ]/b' \
2484 -e '/^#[ ]*if[ ]/b' \
2485 -e '/^#[ ]*ifdef[ ]/b' \
2486 -e '/^#[ ]*ifndef[ ]/b' \
2487 -e '/^#[ ]*else/b' \
2488 -e '/^#[ ]*elif[ ]/b' \
2489 -e '/^#[ ]*undef[ ]/b' \
2490 -e '/^#[ ]*endif/b' \
2492 %s | %"SVf" -C %"SVf" %s",
2499 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2501 scriptname, cpp, sv, CPPMINUS);
2502 PL_doextract = FALSE;
2503 #ifdef IAMSUID /* actually, this is caught earlier */
2504 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2506 (void)seteuid(PL_uid); /* musn't stay setuid root */
2509 (void)setreuid((Uid_t)-1, PL_uid);
2511 #ifdef HAS_SETRESUID
2512 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2514 PerlProc_setuid(PL_uid);
2518 if (PerlProc_geteuid() != PL_uid)
2519 Perl_croak(aTHX_ "Can't do seteuid!\n");
2521 #endif /* IAMSUID */
2522 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2526 else if (!*scriptname) {
2527 forbid_setid("program input from stdin");
2528 PL_rsfp = PerlIO_stdin();
2531 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2532 #if defined(HAS_FCNTL) && defined(F_SETFD)
2534 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2539 #ifndef IAMSUID /* in case script is not readable before setuid */
2541 PerlLIO_stat(CopFILE(PL_curcop),&PL_statbuf) >= 0 &&
2542 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2545 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
2546 (int)PERL_REVISION, (int)PERL_VERSION,
2547 (int)PERL_SUBVERSION), PL_origargv);
2548 Perl_croak(aTHX_ "Can't do setuid\n");
2552 Perl_croak(aTHX_ "Can't open perl script \"%s\": %s\n",
2553 CopFILE(PL_curcop), Strerror(errno));
2558 * I_SYSSTATVFS HAS_FSTATVFS
2560 * I_STATFS HAS_FSTATFS HAS_GETFSSTAT
2561 * I_MNTENT HAS_GETMNTENT HAS_HASMNTOPT
2562 * here so that metaconfig picks them up. */
2566 S_fd_on_nosuid_fs(pTHX_ int fd)
2568 int check_okay = 0; /* able to do all the required sys/libcalls */
2569 int on_nosuid = 0; /* the fd is on a nosuid fs */
2571 * Preferred order: fstatvfs(), fstatfs(), ustat()+getmnt(), getmntent().
2572 * fstatvfs() is UNIX98.
2573 * fstatfs() is 4.3 BSD.
2574 * ustat()+getmnt() is pre-4.3 BSD.
2575 * getmntent() is O(number-of-mounted-filesystems) and can hang on
2576 * an irrelevant filesystem while trying to reach the right one.
2579 # ifdef HAS_FSTATVFS
2580 struct statvfs stfs;
2581 check_okay = fstatvfs(fd, &stfs) == 0;
2582 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
2584 # ifdef PERL_MOUNT_NOSUID
2585 # if defined(HAS_FSTATFS) && \
2586 defined(HAS_STRUCT_STATFS) && \
2587 defined(HAS_STRUCT_STATFS_F_FLAGS)
2589 check_okay = fstatfs(fd, &stfs) == 0;
2590 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
2592 # if defined(HAS_FSTAT) && \
2593 defined(HAS_USTAT) && \
2594 defined(HAS_GETMNT) && \
2595 defined(HAS_STRUCT_FS_DATA) && \
2598 if (fstat(fd, &fdst) == 0) {
2600 if (ustat(fdst.st_dev, &us) == 0) {
2602 /* NOSTAT_ONE here because we're not examining fields which
2603 * vary between that case and STAT_ONE. */
2604 if (getmnt((int*)0, &fsd, (int)0, NOSTAT_ONE, us.f_fname) == 0) {
2605 size_t cmplen = sizeof(us.f_fname);
2606 if (sizeof(fsd.fd_req.path) < cmplen)
2607 cmplen = sizeof(fsd.fd_req.path);
2608 if (strnEQ(fsd.fd_req.path, us.f_fname, cmplen) &&
2609 fdst.st_dev == fsd.fd_req.dev) {
2611 on_nosuid = fsd.fd_req.flags & PERL_MOUNT_NOSUID;
2617 # endif /* fstat+ustat+getmnt */
2618 # endif /* fstatfs */
2620 # if defined(HAS_GETMNTENT) && \
2621 defined(HAS_HASMNTOPT) && \
2622 defined(MNTOPT_NOSUID)
2623 FILE *mtab = fopen("/etc/mtab", "r");
2624 struct mntent *entry;
2625 struct stat stb, fsb;
2627 if (mtab && (fstat(fd, &stb) == 0)) {
2628 while (entry = getmntent(mtab)) {
2629 if (stat(entry->mnt_dir, &fsb) == 0
2630 && fsb.st_dev == stb.st_dev)
2632 /* found the filesystem */
2634 if (hasmntopt(entry, MNTOPT_NOSUID))
2637 } /* A single fs may well fail its stat(). */
2642 # endif /* getmntent+hasmntopt */
2643 # endif /* PERL_MOUNT_NOSUID: fstatfs or fstat+ustat+statfs */
2644 # endif /* statvfs */
2647 Perl_croak(aTHX_ "Can't check filesystem of script \"%s\" for nosuid", PL_origfilename);
2650 #endif /* IAMSUID */
2653 S_validate_suid(pTHX_ char *validarg, char *scriptname, int fdscript)
2657 /* do we need to emulate setuid on scripts? */
2659 /* This code is for those BSD systems that have setuid #! scripts disabled
2660 * in the kernel because of a security problem. Merely defining DOSUID
2661 * in perl will not fix that problem, but if you have disabled setuid
2662 * scripts in the kernel, this will attempt to emulate setuid and setgid
2663 * on scripts that have those now-otherwise-useless bits set. The setuid
2664 * root version must be called suidperl or sperlN.NNN. If regular perl
2665 * discovers that it has opened a setuid script, it calls suidperl with
2666 * the same argv that it had. If suidperl finds that the script it has
2667 * just opened is NOT setuid root, it sets the effective uid back to the
2668 * uid. We don't just make perl setuid root because that loses the
2669 * effective uid we had before invoking perl, if it was different from the
2672 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2673 * be defined in suidperl only. suidperl must be setuid root. The
2674 * Configure script will set this up for you if you want it.
2681 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2682 Perl_croak(aTHX_ "Can't stat script \"%s\"",PL_origfilename);
2683 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2688 #ifndef HAS_SETREUID
2689 /* On this access check to make sure the directories are readable,
2690 * there is actually a small window that the user could use to make
2691 * filename point to an accessible directory. So there is a faint
2692 * chance that someone could execute a setuid script down in a
2693 * non-accessible directory. I don't know what to do about that.
2694 * But I don't think it's too important. The manual lies when
2695 * it says access() is useful in setuid programs.
2697 if (PerlLIO_access(CopFILE(PL_curcop),1)) /*double check*/
2698 Perl_croak(aTHX_ "Permission denied");
2700 /* If we can swap euid and uid, then we can determine access rights
2701 * with a simple stat of the file, and then compare device and
2702 * inode to make sure we did stat() on the same file we opened.
2703 * Then we just have to make sure he or she can execute it.
2706 struct stat tmpstatbuf;
2710 setreuid(PL_euid,PL_uid) < 0
2713 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2716 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2717 Perl_croak(aTHX_ "Can't swap uid and euid"); /* really paranoid */
2718 if (PerlLIO_stat(CopFILE(PL_curcop),&tmpstatbuf) < 0)
2719 Perl_croak(aTHX_ "Permission denied"); /* testing full pathname here */
2720 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
2721 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp)))
2722 Perl_croak(aTHX_ "Permission denied");
2724 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2725 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2726 (void)PerlIO_close(PL_rsfp);
2727 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2728 PerlIO_printf(PL_rsfp,
2729 "User %"Uid_t_f" tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2730 (Filename of set-id script was %s, uid %"Uid_t_f" gid %"Gid_t_f".)\n\nSincerely,\nperl\n",
2731 PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2732 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2734 PL_statbuf.st_uid, PL_statbuf.st_gid);
2735 (void)PerlProc_pclose(PL_rsfp);
2737 Perl_croak(aTHX_ "Permission denied\n");
2741 setreuid(PL_uid,PL_euid) < 0
2743 # if defined(HAS_SETRESUID)
2744 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2747 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2748 Perl_croak(aTHX_ "Can't reswap uid and euid");
2749 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2750 Perl_croak(aTHX_ "Permission denied\n");
2752 #endif /* HAS_SETREUID */
2753 #endif /* IAMSUID */
2755 if (!S_ISREG(PL_statbuf.st_mode))
2756 Perl_croak(aTHX_ "Permission denied");
2757 if (PL_statbuf.st_mode & S_IWOTH)
2758 Perl_croak(aTHX_ "Setuid/gid script is writable by world");
2759 PL_doswitches = FALSE; /* -s is insecure in suid */
2760 CopLINE_inc(PL_curcop);
2761 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2762 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
2763 Perl_croak(aTHX_ "No #! line");
2764 s = SvPV(PL_linestr,n_a)+2;
2766 while (!isSPACE(*s)) s++;
2767 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
2768 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2769 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2770 Perl_croak(aTHX_ "Not a perl script");
2771 while (*s == ' ' || *s == '\t') s++;
2773 * #! arg must be what we saw above. They can invoke it by
2774 * mentioning suidperl explicitly, but they may not add any strange
2775 * arguments beyond what #! says if they do invoke suidperl that way.
2777 len = strlen(validarg);
2778 if (strEQ(validarg," PHOOEY ") ||
2779 strnNE(s,validarg,len) || !isSPACE(s[len]))
2780 Perl_croak(aTHX_ "Args must match #! line");
2783 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2784 PL_euid == PL_statbuf.st_uid)
2786 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2787 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2788 #endif /* IAMSUID */
2790 if (PL_euid) { /* oops, we're not the setuid root perl */
2791 (void)PerlIO_close(PL_rsfp);
2794 PerlProc_execv(Perl_form(aTHX_ "%s/sperl"PERL_FS_VER_FMT, BIN_EXP,
2795 (int)PERL_REVISION, (int)PERL_VERSION,
2796 (int)PERL_SUBVERSION), PL_origargv);
2798 Perl_croak(aTHX_ "Can't do setuid\n");
2801 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2803 (void)setegid(PL_statbuf.st_gid);
2806 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2808 #ifdef HAS_SETRESGID
2809 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2811 PerlProc_setgid(PL_statbuf.st_gid);
2815 if (PerlProc_getegid() != PL_statbuf.st_gid)
2816 Perl_croak(aTHX_ "Can't do setegid!\n");
2818 if (PL_statbuf.st_mode & S_ISUID) {
2819 if (PL_statbuf.st_uid != PL_euid)
2821 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2824 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2826 #ifdef HAS_SETRESUID
2827 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2829 PerlProc_setuid(PL_statbuf.st_uid);
2833 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2834 Perl_croak(aTHX_ "Can't do seteuid!\n");
2836 else if (PL_uid) { /* oops, mustn't run as root */
2838 (void)seteuid((Uid_t)PL_uid);
2841 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2843 #ifdef HAS_SETRESUID
2844 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2846 PerlProc_setuid((Uid_t)PL_uid);
2850 if (PerlProc_geteuid() != PL_uid)
2851 Perl_croak(aTHX_ "Can't do seteuid!\n");
2854 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2855 Perl_croak(aTHX_ "Permission denied\n"); /* they can't do this */
2858 else if (PL_preprocess)
2859 Perl_croak(aTHX_ "-P not allowed for setuid/setgid script\n");
2860 else if (fdscript >= 0)
2861 Perl_croak(aTHX_ "fd script not allowed in suidperl\n");
2863 Perl_croak(aTHX_ "Script is not setuid/setgid in suidperl\n");
2865 /* We absolutely must clear out any saved ids here, so we */
2866 /* exec the real perl, substituting fd script for scriptname. */
2867 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2868 PerlIO_rewind(PL_rsfp);
2869 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2870 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2871 if (!PL_origargv[which])
2872 Perl_croak(aTHX_ "Permission denied");
2873 PL_origargv[which] = savepv(Perl_form(aTHX_ "/dev/fd/%d/%s",
2874 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2875 #if defined(HAS_FCNTL) && defined(F_SETFD)
2876 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2878 PerlProc_execv(Perl_form(aTHX_ "%s/perl"PERL_FS_VER_FMT, BIN_EXP,
2879 (int)PERL_REVISION, (int)PERL_VERSION,
2880 (int)PERL_SUBVERSION), PL_origargv);/* try again */
2881 Perl_croak(aTHX_ "Can't do setuid\n");
2882 #endif /* IAMSUID */
2884 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2885 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2887 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2888 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2890 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2893 Perl_croak(aTHX_ "YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2894 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2895 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2896 /* not set-id, must be wrapped */
2902 S_find_beginning(pTHX)
2904 register char *s, *s2;
2906 /* skip forward in input to the real script? */
2909 while (PL_doextract) {
2910 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2911 Perl_croak(aTHX_ "No Perl script found in input\n");
2912 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2913 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2914 PL_doextract = FALSE;
2915 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2917 while (*s == ' ' || *s == '\t') s++;
2919 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2920 if (strnEQ(s2-4,"perl",4))
2922 while (s = moreswitches(s)) ;
2932 PL_uid = PerlProc_getuid();
2933 PL_euid = PerlProc_geteuid();
2934 PL_gid = PerlProc_getgid();
2935 PL_egid = PerlProc_getegid();
2937 PL_uid |= PL_gid << 16;
2938 PL_euid |= PL_egid << 16;
2940 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2944 S_forbid_setid(pTHX_ char *s)
2946 if (PL_euid != PL_uid)
2947 Perl_croak(aTHX_ "No %s allowed while running setuid", s);
2948 if (PL_egid != PL_gid)
2949 Perl_croak(aTHX_ "No %s allowed while running setgid", s);
2953 Perl_init_debugger(pTHX)
2956 HV *ostash = PL_curstash;
2958 PL_curstash = PL_debstash;
2959 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2960 AvREAL_off(PL_dbargs);
2961 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2962 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2963 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2964 sv_upgrade(GvSV(PL_DBsub), SVt_IV); /* IVX accessed if PERLDB_SUB_NN */
2965 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2966 sv_setiv(PL_DBsingle, 0);
2967 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2968 sv_setiv(PL_DBtrace, 0);
2969 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2970 sv_setiv(PL_DBsignal, 0);
2971 PL_curstash = ostash;
2974 #ifndef STRESS_REALLOC
2975 #define REASONABLE(size) (size)
2977 #define REASONABLE(size) (1) /* unreasonable */
2981 Perl_init_stacks(pTHX)
2983 /* start with 128-item stack and 8K cxstack */
2984 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2985 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2986 PL_curstackinfo->si_type = PERLSI_MAIN;
2987 PL_curstack = PL_curstackinfo->si_stack;
2988 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2990 PL_stack_base = AvARRAY(PL_curstack);
2991 PL_stack_sp = PL_stack_base;
2992 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2994 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2997 PL_tmps_max = REASONABLE(128);
2999 New(54,PL_markstack,REASONABLE(32),I32);
3000 PL_markstack_ptr = PL_markstack;
3001 PL_markstack_max = PL_markstack + REASONABLE(32);
3005 New(54,PL_scopestack,REASONABLE(32),I32);
3006 PL_scopestack_ix = 0;
3007 PL_scopestack_max = REASONABLE(32);
3009 New(54,PL_savestack,REASONABLE(128),ANY);
3010 PL_savestack_ix = 0;
3011 PL_savestack_max = REASONABLE(128);
3013 New(54,PL_retstack,REASONABLE(16),OP*);
3015 PL_retstack_max = REASONABLE(16);
3024 while (PL_curstackinfo->si_next)
3025 PL_curstackinfo = PL_curstackinfo->si_next;
3026 while (PL_curstackinfo) {
3027 PERL_SI *p = PL_curstackinfo->si_prev;
3028 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
3029 Safefree(PL_curstackinfo->si_cxstack);
3030 Safefree(PL_curstackinfo);
3031 PL_curstackinfo = p;
3033 Safefree(PL_tmps_stack);
3034 Safefree(PL_markstack);
3035 Safefree(PL_scopestack);
3036 Safefree(PL_savestack);
3037 Safefree(PL_retstack);
3041 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
3052 lex_start(PL_linestr);
3054 PL_subname = newSVpvn("main",4);
3058 S_init_predump_symbols(pTHX)
3065 sv_setpvn(get_sv("\"", TRUE), " ", 1);
3066 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
3067 GvMULTI_on(PL_stdingv);
3068 io = GvIOp(PL_stdingv);
3069 IoIFP(io) = PerlIO_stdin();
3070 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
3072 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3074 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
3077 IoOFP(io) = IoIFP(io) = PerlIO_stdout();
3079 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
3081 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3083 PL_stderrgv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
3084 GvMULTI_on(PL_stderrgv);
3085 io = GvIOp(PL_stderrgv);
3086 IoOFP(io) = IoIFP(io) = PerlIO_stderr();
3087 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
3089 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(io);
3091 PL_statname = NEWSV(66,0); /* last filename we did stat on */
3094 PL_osname = savepv(OSNAME);
3098 S_init_postdump_symbols(pTHX_ register int argc, register char **argv, register char **env)
3105 argc--,argv++; /* skip name of script */
3106 if (PL_doswitches) {
3107 for (; argc > 0 && **argv == '-'; argc--,argv++) {
3110 if (argv[0][1] == '-' && !argv[0][2]) {
3114 if (s = strchr(argv[0], '=')) {
3116 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
3119 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
3122 PL_toptarget = NEWSV(0,0);
3123 sv_upgrade(PL_toptarget, SVt_PVFM);
3124 sv_setpvn(PL_toptarget, "", 0);
3125 PL_bodytarget = NEWSV(0,0);
3126 sv_upgrade(PL_bodytarget, SVt_PVFM);
3127 sv_setpvn(PL_bodytarget, "", 0);
3128 PL_formtarget = PL_bodytarget;
3131 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
3132 sv_setpv(GvSV(tmpgv),PL_origfilename);
3133 magicname("0", "0", 1);
3135 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
3137 sv_setpv(GvSV(tmpgv), os2_execname());
3139 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
3141 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
3142 GvMULTI_on(PL_argvgv);
3143 (void)gv_AVadd(PL_argvgv);
3144 av_clear(GvAVn(PL_argvgv));
3145 for (; argc > 0; argc--,argv++) {
3146 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
3149 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
3151 GvMULTI_on(PL_envgv);
3152 hv = GvHVn(PL_envgv);
3153 hv_magic(hv, PL_envgv, 'E');
3154 #if !defined( VMS) && !defined(EPOC) /* VMS doesn't have environ array */
3155 /* Note that if the supplied env parameter is actually a copy
3156 of the global environ then it may now point to free'd memory
3157 if the environment has been modified since. To avoid this
3158 problem we treat env==NULL as meaning 'use the default'
3163 environ[0] = Nullch;
3164 for (; *env; env++) {
3165 if (!(s = strchr(*env,'=')))
3171 sv = newSVpv(s--,0);
3172 (void)hv_store(hv, *env, s - *env, sv, 0);
3174 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
3175 /* Sins of the RTL. See note in my_setenv(). */
3176 (void)PerlEnv_putenv(savepv(*env));
3180 #ifdef DYNAMIC_ENV_FETCH
3181 HvNAME(hv) = savepv(ENV_HV_NAME);
3185 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
3186 sv_setiv(GvSV(tmpgv), (IV)PerlProc_getpid());
3190 S_init_perllib(pTHX)
3195 s = PerlEnv_getenv("PERL5LIB");
3199 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
3201 /* Treat PERL5?LIB as a possible search list logical name -- the
3202 * "natural" VMS idiom for a Unix path string. We allow each
3203 * element to be a set of |-separated directories for compatibility.
3207 if (my_trnlnm("PERL5LIB",buf,0))
3208 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
3210 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
3214 /* Use the ~-expanded versions of APPLLIB (undocumented),
3215 ARCHLIB PRIVLIB SITEARCH and SITELIB
3218 incpush(APPLLIB_EXP, TRUE);
3222 incpush(ARCHLIB_EXP, FALSE);
3225 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
3228 incpush(PRIVLIB_EXP, TRUE);
3230 incpush(PRIVLIB_EXP, FALSE);
3234 incpush(SITELIB_EXP, TRUE); /* XXX Win32 needs inc_version_list support */
3238 char *path = SITELIB_EXP;
3243 if (strrchr(buf,'/')) /* XXX Hack, Configure var needed */
3244 *strrchr(buf,'/') = '\0';
3250 #if defined(PERL_VENDORLIB_EXP)
3252 incpush(PERL_VENDORLIB_EXP, TRUE);
3254 incpush(PERL_VENDORLIB_EXP, FALSE);
3258 incpush(".", FALSE);
3262 # define PERLLIB_SEP ';'
3265 # define PERLLIB_SEP '|'
3267 # define PERLLIB_SEP ':'
3270 #ifndef PERLLIB_MANGLE
3271 # define PERLLIB_MANGLE(s,n) (s)
3275 S_incpush(pTHX_ char *p, int addsubdirs)
3277 SV *subdir = Nullsv;
3283 subdir = sv_newmortal();
3286 /* Break at all separators */
3288 SV *libdir = NEWSV(55,0);
3291 /* skip any consecutive separators */
3292 while ( *p == PERLLIB_SEP ) {
3293 /* Uncomment the next line for PATH semantics */
3294 /* av_push(GvAVn(PL_incgv), newSVpvn(".", 1)); */
3298 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
3299 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
3304 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
3305 p = Nullch; /* break out */
3309 * BEFORE pushing libdir onto @INC we may first push version- and
3310 * archname-specific sub-directories.
3313 #ifdef PERL_INC_VERSION_LIST
3314 /* Configure terminates PERL_INC_VERSION_LIST with a NULL */
3315 const char *incverlist[] = { PERL_INC_VERSION_LIST };
3316 const char **incver;
3318 struct stat tmpstatbuf;
3323 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
3325 while (unix[len-1] == '/') len--; /* Cosmetic */
3326 sv_usepvn(libdir,unix,len);
3329 PerlIO_printf(Perl_error_log,
3330 "Failed to unixify @INC element \"%s\"\n",
3333 /* .../version/archname if -d .../version/archname */
3334 Perl_sv_setpvf(aTHX_ subdir, "%"SVf"/"PERL_FS_VER_FMT"/%s", libdir,
3335 (int)PERL_REVISION, (int)PERL_VERSION,
3336 (int)PERL_SUBVERSION, ARCHNAME);
3337 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3338 S_ISDIR(tmpstatbuf.st_mode))
3339 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3341 /* .../version if -d .../version */
3342 Perl_sv_setpvf(aTHX_ subdir, "%"SVf"/"PERL_FS_VER_FMT, libdir,
3343 (int)PERL_REVISION, (int)PERL_VERSION,
3344 (int)PERL_SUBVERSION);
3345 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3346 S_ISDIR(tmpstatbuf.st_mode))
3347 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3349 /* .../archname if -d .../archname */
3350 Perl_sv_setpvf(aTHX_ subdir, "%"SVf"/%s", libdir, ARCHNAME);
3351 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3352 S_ISDIR(tmpstatbuf.st_mode))
3353 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3355 #ifdef PERL_INC_VERSION_LIST
3356 for (incver = incverlist; *incver; incver++) {
3357 /* .../xxx if -d .../xxx */
3358 Perl_sv_setpvf(aTHX_ subdir, "%"SVf"/%s", libdir, *incver);
3359 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
3360 S_ISDIR(tmpstatbuf.st_mode))
3361 av_push(GvAVn(PL_incgv), newSVsv(subdir));
3366 /* finally push this lib directory on the end of @INC */
3367 av_push(GvAVn(PL_incgv), libdir);
3372 STATIC struct perl_thread *
3373 S_init_main_thread(pTHX)
3375 #if !defined(PERL_IMPLICIT_CONTEXT)
3376 struct perl_thread *thr;
3380 Newz(53, thr, 1, struct perl_thread);
3381 PL_curcop = &PL_compiling;
3382 thr->interp = PERL_GET_INTERP;
3383 thr->cvcache = newHV();
3384 thr->threadsv = newAV();
3385 /* thr->threadsvp is set when find_threadsv is called */
3386 thr->specific = newAV();
3387 thr->flags = THRf_R_JOINABLE;
3388 MUTEX_INIT(&thr->mutex);
3389 /* Handcraft thrsv similarly to mess_sv */
3390 New(53, PL_thrsv, 1, SV);
3391 Newz(53, xpv, 1, XPV);
3392 SvFLAGS(PL_thrsv) = SVt_PV;
3393 SvANY(PL_thrsv) = (void*)xpv;
3394 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
3395 SvPVX(PL_thrsv) = (char*)thr;
3396 SvCUR_set(PL_thrsv, sizeof(thr));
3397 SvLEN_set(PL_thrsv, sizeof(thr));
3398 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
3399 thr->oursv = PL_thrsv;
3400 PL_chopset = " \n-";
3403 MUTEX_LOCK(&PL_threads_mutex);
3408 MUTEX_UNLOCK(&PL_threads_mutex);
3410 #ifdef HAVE_THREAD_INTERN
3411 Perl_init_thread_intern(thr);
3414 #ifdef SET_THREAD_SELF
3415 SET_THREAD_SELF(thr);
3417 thr->self = pthread_self();
3418 #endif /* SET_THREAD_SELF */
3422 * These must come after the SET_THR because sv_setpvn does
3423 * SvTAINT and the taint fields require dTHR.
3425 PL_toptarget = NEWSV(0,0);
3426 sv_upgrade(PL_toptarget, SVt_PVFM);
3427 sv_setpvn(PL_toptarget, "", 0);
3428 PL_bodytarget = NEWSV(0,0);
3429 sv_upgrade(PL_bodytarget, SVt_PVFM);
3430 sv_setpvn(PL_bodytarget, "", 0);
3431 PL_formtarget = PL_bodytarget;
3432 thr->errsv = newSVpvn("", 0);
3433 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
3436 PL_regcompp = MEMBER_TO_FPTR(Perl_pregcomp);
3437 PL_regexecp = MEMBER_TO_FPTR(Perl_regexec_flags);
3438 PL_regint_start = MEMBER_TO_FPTR(Perl_re_intuit_start);
3439 PL_regint_string = MEMBER_TO_FPTR(Perl_re_intuit_string);
3440 PL_regfree = MEMBER_TO_FPTR(Perl_pregfree);
3442 PL_reginterp_cnt = 0;
3446 #endif /* USE_THREADS */
3449 Perl_call_list(pTHX_ I32 oldscope, AV *paramList)
3453 line_t oldline = CopLINE(PL_curcop);
3459 while (AvFILL(paramList) >= 0) {
3460 cv = (CV*)av_shift(paramList);
3462 #ifdef PERL_FLEXIBLE_EXCEPTIONS
3463 CALLPROTECT(aTHX_ pcur_env, &ret, MEMBER_TO_FPTR(S_vcall_list_body), cv);
3469 #ifndef PERL_FLEXIBLE_EXCEPTIONS
3473 (void)SvPV(atsv, len);
3476 PL_curcop = &PL_compiling;
3477 CopLINE_set(PL_curcop, oldline);
3478 if (paramList == PL_beginav)
3479 sv_catpv(atsv, "BEGIN failed--compilation aborted");
3481 Perl_sv_catpvf(aTHX_ atsv,
3482 "%s failed--call queue aborted",
3483 paramList == PL_checkav ? "CHECK"
3484 : paramList == PL_initav ? "INIT"
3486 while (PL_scopestack_ix > oldscope)
3489 Perl_croak(aTHX_ "%s", SvPVx(atsv, n_a));
3496 /* my_exit() was called */
3497 while (PL_scopestack_ix > oldscope)
3500 PL_curstash = PL_defstash;
3501 PL_curcop = &PL_compiling;
3502 CopLINE_set(PL_curcop, oldline);
3504 if (PL_statusvalue && !(PL_exit_flags & PERL_EXIT_EXPECTED)) {
3505 if (paramList == PL_beginav)
3506 Perl_croak(aTHX_ "BEGIN failed--compilation aborted");
3508 Perl_croak(aTHX_ "%s failed--call queue aborted",
3509 paramList == PL_checkav ? "CHECK"
3510 : paramList == PL_initav ? "INIT"
3517 PL_curcop = &PL_compiling;
3518 CopLINE_set(PL_curcop, oldline);
3521 PerlIO_printf(Perl_error_log, "panic: restartop\n");
3529 #ifdef PERL_FLEXIBLE_EXCEPTIONS
3531 S_vcall_list_body(pTHX_ va_list args)
3533 CV *cv = va_arg(args, CV*);
3534 return call_list_body(cv);
3539 S_call_list_body(pTHX_ CV *cv)
3541 PUSHMARK(PL_stack_sp);
3542 call_sv((SV*)cv, G_EVAL|G_DISCARD);
3547 Perl_my_exit(pTHX_ U32 status)
3551 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
3552 thr, (unsigned long) status));
3561 STATUS_NATIVE_SET(status);
3568 Perl_my_failure_exit(pTHX)
3571 if (vaxc$errno & 1) {
3572 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
3573 STATUS_NATIVE_SET(44);
3576 if (!vaxc$errno && errno) /* unlikely */
3577 STATUS_NATIVE_SET(44);
3579 STATUS_NATIVE_SET(vaxc$errno);
3584 STATUS_POSIX_SET(errno);
3586 exitstatus = STATUS_POSIX >> 8;
3587 if (exitstatus & 255)
3588 STATUS_POSIX_SET(exitstatus);
3590 STATUS_POSIX_SET(255);
3597 S_my_exit_jump(pTHX)
3600 register PERL_CONTEXT *cx;
3605 SvREFCNT_dec(PL_e_script);
3606 PL_e_script = Nullsv;
3609 POPSTACK_TO(PL_mainstack);
3610 if (cxstack_ix >= 0) {
3613 POPBLOCK(cx,PL_curpm);
3625 read_e_script(pTHXo_ int idx, SV *buf_sv, int maxlen)
3628 p = SvPVX(PL_e_script);
3629 nl = strchr(p, '\n');
3630 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3632 filter_del(read_e_script);
3635 sv_catpvn(buf_sv, p, nl-p);
3636 sv_chop(PL_e_script, nl);