3 * Copyright (c) 1987-1998 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
16 #include "patchlevel.h"
18 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
23 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
24 char *getenv _((char *)); /* Usually in <stdlib.h> */
34 dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n";
42 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
49 static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
51 static void find_beginning _((void));
52 static void forbid_setid _((char *));
53 static void incpush _((char *, int));
54 static void init_interp _((void));
55 static void init_ids _((void));
56 static void init_debugger _((void));
57 static void init_lexer _((void));
58 static void init_main_stash _((void));
60 static struct perl_thread * init_main_thread _((void));
61 #endif /* USE_THREADS */
62 static void init_perllib _((void));
63 static void init_postdump_symbols _((int, char **, char **));
64 static void init_predump_symbols _((void));
65 static void my_exit_jump _((void)) __attribute__((noreturn));
66 static void nuke_stacks _((void));
67 static void open_script _((char *, bool, SV *, int *fd));
68 static void usage _((char *));
69 static void validate_suid _((char *, char*, int));
70 static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
74 CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
75 IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
77 CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
87 PerlInterpreter *sv_interp;
90 New(53, sv_interp, 1, PerlInterpreter);
93 #endif /* PERL_OBJECT */
97 CPerlObj::perl_construct(void)
99 perl_construct(register PerlInterpreter *sv_interp)
105 struct perl_thread *thr;
106 #endif /* FAKE_THREADS */
107 #endif /* USE_THREADS */
110 if (!(PL_curinterp = sv_interp))
116 Zero(sv_interp, 1, PerlInterpreter);
119 /* Init the real globals (and main thread)? */
124 #ifdef ALLOC_THREAD_KEY
127 if (pthread_key_create(&PL_thr_key, 0))
128 croak("panic: pthread_key_create");
130 MUTEX_INIT(&PL_sv_mutex);
132 * Safe to use basic SV functions from now on (though
133 * not things like mortals or tainting yet).
135 MUTEX_INIT(&PL_eval_mutex);
136 COND_INIT(&PL_eval_cond);
137 MUTEX_INIT(&PL_threads_mutex);
138 COND_INIT(&PL_nthreads_cond);
139 #ifdef EMULATE_ATOMIC_REFCOUNTS
140 MUTEX_INIT(&PL_svref_mutex);
141 #endif /* EMULATE_ATOMIC_REFCOUNTS */
143 thr = init_main_thread();
144 #endif /* USE_THREADS */
146 PL_linestr = NEWSV(65,79);
147 sv_upgrade(PL_linestr,SVt_PVIV);
149 if (!SvREADONLY(&PL_sv_undef)) {
150 /* set read-only and try to insure than we wont see REFCNT==0
153 SvREADONLY_on(&PL_sv_undef);
154 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
156 sv_setpv(&PL_sv_no,PL_No);
158 SvREADONLY_on(&PL_sv_no);
159 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
161 sv_setpv(&PL_sv_yes,PL_Yes);
163 SvREADONLY_on(&PL_sv_yes);
164 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
169 /* PL_sighandlerp = sighandler; */
171 PL_sighandlerp = sighandler;
173 PL_pidstatus = newHV();
177 * There is no way we can refer to them from Perl so close them to save
178 * space. The other alternative would be to provide STDAUX and STDPRN
181 (void)fclose(stdaux);
182 (void)fclose(stdprn);
186 PL_nrs = newSVpv("\n", 1);
187 PL_rs = SvREFCNT_inc(PL_nrs);
192 PL_perl_destruct_level = 1;
194 if (PL_perl_destruct_level > 0)
199 PL_lex_state = LEX_NOTPARSING;
201 PL_start_env.je_prev = NULL;
202 PL_start_env.je_ret = -1;
203 PL_start_env.je_mustcatch = TRUE;
204 PL_top_env = &PL_start_env;
207 SET_NUMERIC_STANDARD();
208 #if defined(SUBVERSION) && SUBVERSION > 0
209 sprintf(PL_patchlevel, "%7.5f", (double) 5
210 + ((double) PATCHLEVEL / (double) 1000)
211 + ((double) SUBVERSION / (double) 100000));
213 sprintf(PL_patchlevel, "%5.3f", (double) 5 +
214 ((double) PATCHLEVEL / (double) 1000));
217 #if defined(LOCAL_PATCH_COUNT)
218 PL_localpatches = local_patches; /* For possible -v */
221 PerlIO_init(); /* Hook to IO system */
223 PL_fdpid = newAV(); /* for remembering popen pids by fd */
224 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
227 New(51,PL_debname,128,char);
228 New(52,PL_debdelim,128,char);
236 CPerlObj::perl_destruct(void)
238 perl_destruct(register PerlInterpreter *sv_interp)
242 int destruct_level; /* 0=none, 1=full, 2=full with checks */
247 #endif /* USE_THREADS */
250 if (!(PL_curinterp = sv_interp))
256 /* Pass 1 on any remaining threads: detach joinables, join zombies */
258 MUTEX_LOCK(&PL_threads_mutex);
259 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
260 "perl_destruct: waiting for %d threads...\n",
262 for (t = thr->next; t != thr; t = t->next) {
263 MUTEX_LOCK(&t->mutex);
264 switch (ThrSTATE(t)) {
267 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
268 "perl_destruct: joining zombie %p\n", t));
269 ThrSETSTATE(t, THRf_DEAD);
270 MUTEX_UNLOCK(&t->mutex);
273 * The SvREFCNT_dec below may take a long time (e.g. av
274 * may contain an object scalar whose destructor gets
275 * called) so we have to unlock threads_mutex and start
278 MUTEX_UNLOCK(&PL_threads_mutex);
280 SvREFCNT_dec((SV*)av);
281 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
282 "perl_destruct: joined zombie %p OK\n", t));
284 case THRf_R_JOINABLE:
285 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
286 "perl_destruct: detaching thread %p\n", t));
287 ThrSETSTATE(t, THRf_R_DETACHED);
289 * We unlock threads_mutex and t->mutex in the opposite order
290 * from which we locked them just so that DETACH won't
291 * deadlock if it panics. It's only a breach of good style
292 * not a bug since they are unlocks not locks.
294 MUTEX_UNLOCK(&PL_threads_mutex);
296 MUTEX_UNLOCK(&t->mutex);
299 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
300 "perl_destruct: ignoring %p (state %u)\n",
302 MUTEX_UNLOCK(&t->mutex);
303 /* fall through and out */
306 /* We leave the above "Pass 1" loop with threads_mutex still locked */
308 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
309 while (PL_nthreads > 1)
311 DEBUG_L(PerlIO_printf(PerlIO_stderr(),
312 "perl_destruct: final wait for %d threads\n",
314 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
316 /* At this point, we're the last thread */
317 MUTEX_UNLOCK(&PL_threads_mutex);
318 DEBUG_L(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
319 MUTEX_DESTROY(&PL_threads_mutex);
320 COND_DESTROY(&PL_nthreads_cond);
321 #endif /* !defined(FAKE_THREADS) */
322 #endif /* USE_THREADS */
324 destruct_level = PL_perl_destruct_level;
328 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
330 if (destruct_level < i)
343 /* We must account for everything. */
345 /* Destroy the main CV and syntax tree */
347 PL_curpad = AvARRAY(PL_comppad);
348 op_free(PL_main_root);
349 PL_main_root = Nullop;
351 PL_curcop = &PL_compiling;
352 PL_main_start = Nullop;
353 SvREFCNT_dec(PL_main_cv);
356 if (PL_sv_objcount) {
358 * Try to destruct global references. We do this first so that the
359 * destructors and destructees still exist. Some sv's might remain.
360 * Non-referenced objects are on their own.
367 /* unhook hooks which will soon be, or use, destroyed data */
368 SvREFCNT_dec(PL_warnhook);
369 PL_warnhook = Nullsv;
370 SvREFCNT_dec(PL_diehook);
372 SvREFCNT_dec(PL_parsehook);
373 PL_parsehook = Nullsv;
375 /* call exit list functions */
376 while (PL_exitlistlen-- > 0)
377 PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
379 Safefree(PL_exitlist);
381 if (destruct_level == 0){
383 DEBUG_P(debprofdump());
385 /* The exit() function will do everything that needs doing. */
389 /* loosen bonds of global variables */
392 (void)PerlIO_close(PL_rsfp);
396 /* Filters for program text */
397 SvREFCNT_dec(PL_rsfp_filters);
398 PL_rsfp_filters = Nullav;
401 PL_preprocess = FALSE;
407 PL_doswitches = FALSE;
409 PL_doextract = FALSE;
410 PL_sawampersand = FALSE; /* must save all match strings */
411 PL_sawstudy = FALSE; /* do fbm_instr on all strings */
415 Safefree(PL_inplace);
419 SvREFCNT_dec(PL_e_script);
420 PL_e_script = Nullsv;
423 /* magical thingies */
425 Safefree(PL_ofs); /* $, */
428 Safefree(PL_ors); /* $\ */
431 SvREFCNT_dec(PL_rs); /* $/ */
434 SvREFCNT_dec(PL_nrs); /* $/ helper */
437 PL_multiline = 0; /* $* */
439 SvREFCNT_dec(PL_statname);
440 PL_statname = Nullsv;
443 /* defgv, aka *_ should be taken care of elsewhere */
445 /* clean up after study() */
446 SvREFCNT_dec(PL_lastscream);
447 PL_lastscream = Nullsv;
448 Safefree(PL_screamfirst);
450 Safefree(PL_screamnext);
453 /* startup and shutdown function lists */
454 SvREFCNT_dec(PL_beginav);
455 SvREFCNT_dec(PL_endav);
456 SvREFCNT_dec(PL_initav);
461 /* shortcuts just get cleared */
468 PL_argvoutgv = Nullgv;
470 PL_last_in_gv = Nullgv;
473 /* reset so print() ends up where we expect */
476 /* Prepare to destruct main symbol table. */
483 if (destruct_level >= 2) {
484 if (PL_scopestack_ix != 0)
485 warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
486 (long)PL_scopestack_ix);
487 if (PL_savestack_ix != 0)
488 warn("Unbalanced saves: %ld more saves than restores\n",
489 (long)PL_savestack_ix);
490 if (PL_tmps_floor != -1)
491 warn("Unbalanced tmps: %ld more allocs than frees\n",
492 (long)PL_tmps_floor + 1);
493 if (cxstack_ix != -1)
494 warn("Unbalanced context: %ld more PUSHes than POPs\n",
495 (long)cxstack_ix + 1);
498 /* Now absolutely destruct everything, somehow or other, loops or no. */
500 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
501 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
502 last_sv_count = PL_sv_count;
505 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
506 SvFLAGS(PL_strtab) |= SVt_PVHV;
508 /* Destruct the global string table. */
510 /* Yell and reset the HeVAL() slots that are still holding refcounts,
511 * so that sv_free() won't fail on them.
519 max = HvMAX(PL_strtab);
520 array = HvARRAY(PL_strtab);
524 warn("Unbalanced string table refcount: (%d) for \"%s\"",
525 HeVAL(hent) - Nullsv, HeKEY(hent));
526 HeVAL(hent) = Nullsv;
536 SvREFCNT_dec(PL_strtab);
538 if (PL_sv_count != 0)
539 warn("Scalars leaked: %ld\n", (long)PL_sv_count);
543 /* No SVs have survived, need to clean out */
545 PL_pidstatus = Nullhv;
546 Safefree(PL_origfilename);
547 Safefree(PL_archpat_auto);
548 Safefree(PL_reg_start_tmp);
549 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
550 Safefree(PL_op_mask);
552 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
554 DEBUG_P(debprofdump());
556 MUTEX_DESTROY(&PL_sv_mutex);
557 MUTEX_DESTROY(&PL_eval_mutex);
558 COND_DESTROY(&PL_eval_cond);
560 /* As the penultimate thing, free the non-arena SV for thrsv */
561 Safefree(SvPVX(PL_thrsv));
562 Safefree(SvANY(PL_thrsv));
565 #endif /* USE_THREADS */
567 /* As the absolutely last thing, free the non-arena SV for mess() */
570 /* we know that type >= SVt_PV */
571 SvOOK_off(PL_mess_sv);
572 Safefree(SvPVX(PL_mess_sv));
573 Safefree(SvANY(PL_mess_sv));
574 Safefree(PL_mess_sv);
581 CPerlObj::perl_free(void)
583 perl_free(PerlInterpreter *sv_interp)
589 if (!(PL_curinterp = sv_interp))
597 CPerlObj::perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
599 perl_atexit(void (*fn) (void *), void *ptr)
602 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
603 PL_exitlist[PL_exitlistlen].fn = fn;
604 PL_exitlist[PL_exitlistlen].ptr = ptr;
610 CPerlObj::perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
612 perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
618 char *scriptname = NULL;
619 VOL bool dosearch = FALSE;
627 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
630 croak("suidperl is no longer needed since the kernel can now execute\n\
631 setuid perl scripts securely.\n");
636 if (!(PL_curinterp = sv_interp))
640 #if defined(NeXT) && defined(__DYNAMIC__)
641 _dyld_lookup_and_bind
642 ("__environ", (unsigned long *) &environ_pointer, NULL);
647 #ifndef VMS /* VMS doesn't have environ array */
648 PL_origenviron = environ;
653 /* Come here if running an undumped a.out. */
655 PL_origfilename = savepv(argv[0]);
656 PL_do_undump = FALSE;
657 cxstack_ix = -1; /* start label stack again */
659 init_postdump_symbols(argc,argv,env);
664 PL_curpad = AvARRAY(PL_comppad);
665 op_free(PL_main_root);
666 PL_main_root = Nullop;
668 PL_main_start = Nullop;
669 SvREFCNT_dec(PL_main_cv);
673 oldscope = PL_scopestack_ix;
681 /* my_exit() was called */
682 while (PL_scopestack_ix > oldscope)
685 PL_curstash = PL_defstash;
687 call_list(oldscope, PL_endav);
689 return STATUS_NATIVE_EXPORT;
692 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
696 sv_setpvn(PL_linestr,"",0);
697 sv = newSVpv("",0); /* first used for -I flags */
701 for (argc--,argv++; argc > 0; argc--,argv++) {
702 if (argv[0][0] != '-' || !argv[0][1])
706 validarg = " PHOOEY ";
732 if (s = moreswitches(s))
742 if (PL_euid != PL_uid || PL_egid != PL_gid)
743 croak("No -e allowed in setuid scripts");
745 PL_e_script = newSVpv("",0);
746 filter_add(read_e_script, NULL);
749 sv_catpv(PL_e_script, s);
751 sv_catpv(PL_e_script, argv[1]);
755 croak("No code specified for -e");
756 sv_catpv(PL_e_script, "\n");
759 case 'I': /* -I handled both here and in moreswitches() */
761 if (!*++s && (s=argv[1]) != Nullch) {
764 while (s && isSPACE(*s))
768 for (e = s; *e && !isSPACE(*e); e++) ;
775 } /* XXX else croak? */
779 PL_preprocess = TRUE;
789 PL_preambleav = newAV();
790 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
792 PL_Sv = newSVpv("print myconfig();",0);
794 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
796 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
798 #if defined(DEBUGGING) || defined(NO_EMBED) || defined(MULTIPLICITY)
799 sv_catpv(PL_Sv,"\" Compile-time options:");
801 sv_catpv(PL_Sv," DEBUGGING");
804 sv_catpv(PL_Sv," NO_EMBED");
807 sv_catpv(PL_Sv," MULTIPLICITY");
809 sv_catpv(PL_Sv,"\\n\",");
811 #if defined(LOCAL_PATCH_COUNT)
812 if (LOCAL_PATCH_COUNT > 0) {
814 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
815 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
816 if (PL_localpatches[i])
817 sv_catpvf(PL_Sv,"\" \\t%s\\n\",",PL_localpatches[i]);
821 sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME);
824 sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
826 sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
831 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
832 print \" \\%ENV:\\n @env\\n\" if @env; \
833 print \" \\@INC:\\n @INC\\n\";");
836 PL_Sv = newSVpv("config_vars(qw(",0);
837 sv_catpv(PL_Sv, ++s);
838 sv_catpv(PL_Sv, "))");
841 av_push(PL_preambleav, PL_Sv);
842 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
848 PL_cddir = savepv(s);
853 if (!*++s || isSPACE(*s)) {
857 /* catch use of gnu style long options */
858 if (strEQ(s, "version")) {
862 if (strEQ(s, "help")) {
869 croak("Unrecognized switch: -%s (-h will show valid options)",s);
874 if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) {
885 if (!strchr("DIMUdmw", *s))
886 croak("Illegal switch in PERL5OPT: -%c", *s);
892 scriptname = argv[0];
895 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
897 else if (scriptname == Nullch) {
899 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
907 open_script(scriptname,dosearch,sv,&fdscript);
909 validate_suid(validarg, scriptname,fdscript);
914 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
915 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
916 CvUNIQUE_on(PL_compcv);
918 PL_comppad = newAV();
919 av_push(PL_comppad, Nullsv);
920 PL_curpad = AvARRAY(PL_comppad);
921 PL_comppad_name = newAV();
922 PL_comppad_name_fill = 0;
923 PL_min_intro_pending = 0;
926 av_store(PL_comppad_name, 0, newSVpv("@_", 2));
927 PL_curpad[0] = (SV*)newAV();
928 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
929 CvOWNER(PL_compcv) = 0;
930 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
931 MUTEX_INIT(CvMUTEXP(PL_compcv));
932 #endif /* USE_THREADS */
934 comppadlist = newAV();
935 AvREAL_off(comppadlist);
936 av_store(comppadlist, 0, (SV*)PL_comppad_name);
937 av_store(comppadlist, 1, (SV*)PL_comppad);
938 CvPADLIST(PL_compcv) = comppadlist;
940 boot_core_UNIVERSAL();
943 (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */
944 #if defined(VMS) || defined(WIN32) || defined(DJGPP)
948 init_predump_symbols();
949 /* init_postdump_symbols not currently designed to be called */
950 /* more than once (ENV isn't cleared first, for example) */
951 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
953 init_postdump_symbols(argc,argv,env);
957 /* now parse the script */
959 SETERRNO(0,SS$_NORMAL);
961 if (yyparse() || PL_error_count) {
963 croak("%s had compilation errors.\n", PL_origfilename);
965 croak("Execution of %s aborted due to compilation errors.\n",
969 PL_curcop->cop_line = 0;
970 PL_curstash = PL_defstash;
971 PL_preprocess = FALSE;
973 SvREFCNT_dec(PL_e_script);
974 PL_e_script = Nullsv;
977 /* now that script is parsed, we can modify record separator */
979 PL_rs = SvREFCNT_inc(PL_nrs);
980 sv_setsv(perl_get_sv("/", TRUE), PL_rs);
985 gv_check(PL_defstash);
991 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
992 dump_mstats("after compilation:");
1003 CPerlObj::perl_run(void)
1005 perl_run(PerlInterpreter *sv_interp)
1014 if (!(PL_curinterp = sv_interp))
1018 oldscope = PL_scopestack_ix;
1023 cxstack_ix = -1; /* start context stack again */
1026 /* my_exit() was called */
1027 while (PL_scopestack_ix > oldscope)
1030 PL_curstash = PL_defstash;
1032 call_list(oldscope, PL_endav);
1034 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1035 dump_mstats("after execution: ");
1038 return STATUS_NATIVE_EXPORT;
1040 if (!PL_restartop) {
1041 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
1046 POPSTACK_TO(PL_mainstack);
1050 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1051 PL_sawampersand ? "Enabling" : "Omitting"));
1053 if (!PL_restartop) {
1054 DEBUG_x(dump_all());
1055 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1057 DEBUG_L(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n",
1058 (unsigned long) thr));
1059 #endif /* USE_THREADS */
1062 PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename);
1065 if (PERLDB_SINGLE && PL_DBsingle)
1066 sv_setiv(PL_DBsingle, 1);
1068 call_list(oldscope, PL_initav);
1074 PL_op = PL_restartop;
1078 else if (PL_main_start) {
1079 CvDEPTH(PL_main_cv) = 1;
1080 PL_op = PL_main_start;
1090 perl_get_sv(char *name, I32 create)
1094 if (name[1] == '\0' && !isALPHA(name[0])) {
1095 PADOFFSET tmp = find_threadsv(name);
1096 if (tmp != NOT_IN_PAD) {
1098 return THREADSV(tmp);
1101 #endif /* USE_THREADS */
1102 gv = gv_fetchpv(name, create, SVt_PV);
1109 perl_get_av(char *name, I32 create)
1111 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1120 perl_get_hv(char *name, I32 create)
1122 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1131 perl_get_cv(char *name, I32 create)
1133 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1134 if (create && !GvCVu(gv))
1135 return newSUB(start_subparse(FALSE, 0),
1136 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1144 /* Be sure to refetch the stack pointer after calling these routines. */
1147 perl_call_argv(char *sub_name, I32 flags, register char **argv)
1149 /* See G_* flags in cop.h */
1150 /* null terminated arg list */
1157 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1162 return perl_call_pv(sub_name, flags);
1166 perl_call_pv(char *sub_name, I32 flags)
1167 /* name of the subroutine */
1168 /* See G_* flags in cop.h */
1170 return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
1174 perl_call_method(char *methname, I32 flags)
1175 /* name of the subroutine */
1176 /* See G_* flags in cop.h */
1182 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1187 return perl_call_sv(*PL_stack_sp--, flags);
1190 /* May be called with any of a CV, a GV, or an SV containing the name. */
1192 perl_call_sv(SV *sv, I32 flags)
1194 /* See G_* flags in cop.h */
1197 LOGOP myop; /* fake syntax tree node */
1201 bool oldcatch = CATCH_GET;
1206 if (flags & G_DISCARD) {
1211 Zero(&myop, 1, LOGOP);
1212 myop.op_next = Nullop;
1213 if (!(flags & G_NOARGS))
1214 myop.op_flags |= OPf_STACKED;
1215 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1216 (flags & G_ARRAY) ? OPf_WANT_LIST :
1221 EXTEND(PL_stack_sp, 1);
1222 *++PL_stack_sp = sv;
1224 oldscope = PL_scopestack_ix;
1226 if (PERLDB_SUB && PL_curstash != PL_debstash
1227 /* Handle first BEGIN of -d. */
1228 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1229 /* Try harder, since this may have been a sighandler, thus
1230 * curstash may be meaningless. */
1231 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1232 && !(flags & G_NODEBUG))
1233 PL_op->op_private |= OPpENTERSUB_DB;
1235 if (flags & G_EVAL) {
1236 cLOGOP->op_other = PL_op;
1238 /* we're trying to emulate pp_entertry() here */
1240 register PERL_CONTEXT *cx;
1241 I32 gimme = GIMME_V;
1246 push_return(PL_op->op_next);
1247 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1249 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1252 if (flags & G_KEEPERR)
1267 /* my_exit() was called */
1268 PL_curstash = PL_defstash;
1272 croak("Callback called exit");
1277 PL_op = PL_restartop;
1281 PL_stack_sp = PL_stack_base + oldmark;
1282 if (flags & G_ARRAY)
1286 *++PL_stack_sp = &PL_sv_undef;
1294 if (PL_op == (OP*)&myop)
1295 PL_op = pp_entersub(ARGS);
1298 retval = PL_stack_sp - (PL_stack_base + oldmark);
1299 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1303 if (flags & G_EVAL) {
1304 if (PL_scopestack_ix > oldscope) {
1308 register PERL_CONTEXT *cx;
1320 CATCH_SET(oldcatch);
1322 if (flags & G_DISCARD) {
1323 PL_stack_sp = PL_stack_base + oldmark;
1332 /* Eval a string. The G_EVAL flag is always assumed. */
1335 perl_eval_sv(SV *sv, I32 flags)
1337 /* See G_* flags in cop.h */
1340 UNOP myop; /* fake syntax tree node */
1341 I32 oldmark = SP - PL_stack_base;
1348 if (flags & G_DISCARD) {
1355 Zero(PL_op, 1, UNOP);
1356 EXTEND(PL_stack_sp, 1);
1357 *++PL_stack_sp = sv;
1358 oldscope = PL_scopestack_ix;
1360 if (!(flags & G_NOARGS))
1361 myop.op_flags = OPf_STACKED;
1362 myop.op_next = Nullop;
1363 myop.op_type = OP_ENTEREVAL;
1364 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1365 (flags & G_ARRAY) ? OPf_WANT_LIST :
1367 if (flags & G_KEEPERR)
1368 myop.op_flags |= OPf_SPECIAL;
1378 /* my_exit() was called */
1379 PL_curstash = PL_defstash;
1383 croak("Callback called exit");
1388 PL_op = PL_restartop;
1392 PL_stack_sp = PL_stack_base + oldmark;
1393 if (flags & G_ARRAY)
1397 *++PL_stack_sp = &PL_sv_undef;
1402 if (PL_op == (OP*)&myop)
1403 PL_op = pp_entereval(ARGS);
1406 retval = PL_stack_sp - (PL_stack_base + oldmark);
1407 if (!(flags & G_KEEPERR))
1412 if (flags & G_DISCARD) {
1413 PL_stack_sp = PL_stack_base + oldmark;
1423 perl_eval_pv(char *p, I32 croak_on_error)
1426 SV* sv = newSVpv(p, 0);
1429 perl_eval_sv(sv, G_SCALAR);
1436 if (croak_on_error && SvTRUE(ERRSV))
1437 croak(SvPVx(ERRSV, PL_na));
1442 /* Require a module. */
1445 perl_require_pv(char *pv)
1449 PUSHSTACKi(PERLSI_REQUIRE);
1451 sv = sv_newmortal();
1452 sv_setpv(sv, "require '");
1455 perl_eval_sv(sv, G_DISCARD);
1461 magicname(char *sym, char *name, I32 namlen)
1465 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1466 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1470 usage(char *name) /* XXX move this out into a module ? */
1473 /* This message really ought to be max 23 lines.
1474 * Removed -h because the user already knows that opton. Others? */
1476 static char *usage_msg[] = {
1477 "-0[octal] specify record separator (\\0, if no argument)",
1478 "-a autosplit mode with -n or -p (splits $_ into @F)",
1479 "-c check syntax only (runs BEGIN and END blocks)",
1480 "-d[:debugger] run scripts under debugger",
1481 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1482 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1483 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1484 "-i[extension] edit <> files in place (make backup if extension supplied)",
1485 "-Idirectory specify @INC/#include directory (may be used more than once)",
1486 "-l[octal] enable line ending processing, specifies line terminator",
1487 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1488 "-n assume 'while (<>) { ... }' loop around your script",
1489 "-p assume loop like -n but print line also like sed",
1490 "-P run script through C preprocessor before compilation",
1491 "-s enable some switch parsing for switches after script name",
1492 "-S look for the script using PATH environment variable",
1493 "-T turn on tainting checks",
1494 "-u dump core after parsing script",
1495 "-U allow unsafe operations",
1496 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1497 "-V[:variable] print perl configuration information",
1498 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1499 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1503 char **p = usage_msg;
1505 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1507 printf("\n %s", *p++);
1510 /* This routine handles any switches that can be given during run */
1513 moreswitches(char *s)
1522 rschar = scan_oct(s, 4, &numlen);
1523 SvREFCNT_dec(PL_nrs);
1524 if (rschar & ~((U8)~0))
1525 PL_nrs = &PL_sv_undef;
1526 else if (!rschar && numlen >= 2)
1527 PL_nrs = newSVpv("", 0);
1530 PL_nrs = newSVpv(&ch, 1);
1536 PL_splitstr = savepv(s + 1);
1550 if (*s == ':' || *s == '=') {
1551 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1555 PL_perldb = PERLDB_ALL;
1562 if (isALPHA(s[1])) {
1563 static char debopts[] = "psltocPmfrxuLHXD";
1566 for (s++; *s && (d = strchr(debopts,*s)); s++)
1567 PL_debug |= 1 << (d - debopts);
1570 PL_debug = atoi(s+1);
1571 for (s++; isDIGIT(*s); s++) ;
1573 PL_debug |= 0x80000000;
1575 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1576 for (s++; isALNUM(*s); s++) ;
1581 usage(PL_origargv[0]);
1585 Safefree(PL_inplace);
1586 PL_inplace = savepv(s+1);
1588 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1591 if (*s == '-') /* Additional switches on #! line. */
1595 case 'I': /* -I handled both here and in parse_perl() */
1598 while (*s && isSPACE(*s))
1602 for (e = s; *e && !isSPACE(*e); e++) ;
1603 p = savepvn(s, e-s);
1609 croak("No space allowed after -I");
1617 PL_ors = savepv("\n");
1619 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1624 if (RsPARA(PL_nrs)) {
1629 PL_ors = SvPV(PL_nrs, PL_orslen);
1630 PL_ors = savepvn(PL_ors, PL_orslen);
1634 forbid_setid("-M"); /* XXX ? */
1637 forbid_setid("-m"); /* XXX ? */
1642 /* -M-foo == 'no foo' */
1643 if (*s == '-') { use = "no "; ++s; }
1644 sv = newSVpv(use,0);
1646 /* We allow -M'Module qw(Foo Bar)' */
1647 while(isALNUM(*s) || *s==':') ++s;
1649 sv_catpv(sv, start);
1650 if (*(start-1) == 'm') {
1652 croak("Can't use '%c' after -mname", *s);
1653 sv_catpv( sv, " ()");
1656 sv_catpvn(sv, start, s-start);
1657 sv_catpv(sv, " split(/,/,q{");
1662 if (PL_preambleav == NULL)
1663 PL_preambleav = newAV();
1664 av_push(PL_preambleav, sv);
1667 croak("No space allowed after -%c", *(s-1));
1679 PL_doswitches = TRUE;
1684 croak("Too late for \"-T\" option");
1688 PL_do_undump = TRUE;
1696 #if defined(SUBVERSION) && SUBVERSION > 0
1697 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1698 PATCHLEVEL, SUBVERSION, ARCHNAME);
1700 printf("\nThis is perl, version %s built for %s",
1701 PL_patchlevel, ARCHNAME);
1703 #if defined(LOCAL_PATCH_COUNT)
1704 if (LOCAL_PATCH_COUNT > 0)
1705 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1706 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1709 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1711 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1714 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1715 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1718 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1719 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1722 printf("atariST series port, ++jrb bammi@cadence.com\n");
1725 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1728 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1730 #ifdef BINARY_BUILD_NOTICE
1731 BINARY_BUILD_NOTICE;
1734 Perl may be copied only under the terms of either the Artistic License or the\n\
1735 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1736 Complete documentation for Perl, including FAQ lists, should be found on\n\
1737 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1738 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1746 if (s[1] == '-') /* Additional switches on #! line. */
1757 #ifdef ALTERNATE_SHEBANG
1758 case 'S': /* OS/2 needs -S on "extproc" line. */
1766 croak("Can't emulate -%.1s on #! line",s);
1771 /* compliments of Tom Christiansen */
1773 /* unexec() can be found in the Gnu emacs distribution */
1774 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1785 prog = newSVpv(BIN_EXP, 0);
1786 sv_catpv(prog, "/perl");
1787 file = newSVpv(PL_origfilename, 0);
1788 sv_catpv(file, ".perldump");
1790 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1791 /* unexec prints msg to stderr in case of failure */
1792 PerlProc_exit(status);
1795 # include <lib$routines.h>
1796 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1798 ABORT(); /* for use with undump */
1803 /* initialize curinterp */
1808 #ifdef PERL_OBJECT /* XXX kludge */
1811 PL_chopset = " \n-"; \
1812 PL_copline = NOLINE; \
1813 PL_curcop = &PL_compiling;\
1814 PL_curcopdb = NULL; \
1817 PL_laststatval = -1; \
1818 PL_laststype = OP_STAT; \
1819 PL_maxscream = -1; \
1820 PL_maxsysfd = MAXSYSFD; \
1821 PL_statname = Nullsv; \
1822 PL_tmps_floor = -1; \
1824 PL_op_mask = NULL; \
1826 PL_laststatval = -1; \
1827 PL_laststype = OP_STAT; \
1828 PL_mess_sv = Nullsv; \
1829 PL_splitstr = " "; \
1830 PL_generation = 100; \
1831 PL_exitlist = NULL; \
1832 PL_exitlistlen = 0; \
1834 PL_in_clean_objs = FALSE; \
1835 PL_in_clean_all = FALSE; \
1836 PL_profiledata = NULL; \
1838 PL_rsfp_filters = Nullav; \
1842 # ifdef MULTIPLICITY
1843 # define PERLVAR(var,type)
1844 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1845 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1846 # include "intrpvar.h"
1847 # ifndef USE_THREADS
1848 # include "thrdvar.h"
1854 # define PERLVAR(var,type)
1855 # define PERLVARI(var,type,init) PL_##var = init;
1856 # define PERLVARIC(var,type,init) PL_##var = init;
1857 # include "intrpvar.h"
1858 # ifndef USE_THREADS
1859 # include "thrdvar.h"
1870 init_main_stash(void)
1875 /* Note that strtab is a rather special HV. Assumptions are made
1876 about not iterating on it, and not adding tie magic to it.
1877 It is properly deallocated in perl_destruct() */
1878 PL_strtab = newHV();
1879 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1880 hv_ksplit(PL_strtab, 512);
1882 PL_curstash = PL_defstash = newHV();
1883 PL_curstname = newSVpv("main",4);
1884 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1885 SvREFCNT_dec(GvHV(gv));
1886 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1888 HvNAME(PL_defstash) = savepv("main");
1889 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1890 GvMULTI_on(PL_incgv);
1891 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1892 GvMULTI_on(PL_hintgv);
1893 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1894 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1895 GvMULTI_on(PL_errgv);
1896 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1897 GvMULTI_on(PL_replgv);
1898 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1899 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1900 sv_setpvn(ERRSV, "", 0);
1901 PL_curstash = PL_defstash;
1902 PL_compiling.cop_stash = PL_defstash;
1903 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1904 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1905 /* We must init $/ before switches are processed. */
1906 sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
1910 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1918 PL_origfilename = savepv("-e");
1921 /* if find_script() returns, it returns a malloc()-ed value */
1922 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1924 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1925 char *s = scriptname + 8;
1926 *fdscript = atoi(s);
1930 scriptname = savepv(s + 1);
1931 Safefree(PL_origfilename);
1932 PL_origfilename = scriptname;
1937 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1938 if (strEQ(PL_origfilename,"-"))
1940 if (*fdscript >= 0) {
1941 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1942 #if defined(HAS_FCNTL) && defined(F_SETFD)
1944 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1947 else if (PL_preprocess) {
1948 char *cpp_cfg = CPPSTDIN;
1949 SV *cpp = newSVpv("",0);
1950 SV *cmd = NEWSV(0,0);
1952 if (strEQ(cpp_cfg, "cppstdin"))
1953 sv_catpvf(cpp, "%s/", BIN_EXP);
1954 sv_catpv(cpp, cpp_cfg);
1957 sv_catpv(sv,PRIVLIB_EXP);
1961 sed %s -e \"/^[^#]/b\" \
1962 -e \"/^#[ ]*include[ ]/b\" \
1963 -e \"/^#[ ]*define[ ]/b\" \
1964 -e \"/^#[ ]*if[ ]/b\" \
1965 -e \"/^#[ ]*ifdef[ ]/b\" \
1966 -e \"/^#[ ]*ifndef[ ]/b\" \
1967 -e \"/^#[ ]*else/b\" \
1968 -e \"/^#[ ]*elif[ ]/b\" \
1969 -e \"/^#[ ]*undef[ ]/b\" \
1970 -e \"/^#[ ]*endif/b\" \
1973 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
1976 %s %s -e '/^[^#]/b' \
1977 -e '/^#[ ]*include[ ]/b' \
1978 -e '/^#[ ]*define[ ]/b' \
1979 -e '/^#[ ]*if[ ]/b' \
1980 -e '/^#[ ]*ifdef[ ]/b' \
1981 -e '/^#[ ]*ifndef[ ]/b' \
1982 -e '/^#[ ]*else/b' \
1983 -e '/^#[ ]*elif[ ]/b' \
1984 -e '/^#[ ]*undef[ ]/b' \
1985 -e '/^#[ ]*endif/b' \
1993 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
1995 scriptname, cpp, sv, CPPMINUS);
1996 PL_doextract = FALSE;
1997 #ifdef IAMSUID /* actually, this is caught earlier */
1998 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2000 (void)seteuid(PL_uid); /* musn't stay setuid root */
2003 (void)setreuid((Uid_t)-1, PL_uid);
2005 #ifdef HAS_SETRESUID
2006 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2008 PerlProc_setuid(PL_uid);
2012 if (PerlProc_geteuid() != PL_uid)
2013 croak("Can't do seteuid!\n");
2015 #endif /* IAMSUID */
2016 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2020 else if (!*scriptname) {
2021 forbid_setid("program input from stdin");
2022 PL_rsfp = PerlIO_stdin();
2025 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2026 #if defined(HAS_FCNTL) && defined(F_SETFD)
2028 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2033 #ifndef IAMSUID /* in case script is not readable before setuid */
2035 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2036 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2039 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2040 croak("Can't do setuid\n");
2044 croak("Can't open perl script \"%s\": %s\n",
2045 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2050 validate_suid(char *validarg, char *scriptname, int fdscript)
2054 /* do we need to emulate setuid on scripts? */
2056 /* This code is for those BSD systems that have setuid #! scripts disabled
2057 * in the kernel because of a security problem. Merely defining DOSUID
2058 * in perl will not fix that problem, but if you have disabled setuid
2059 * scripts in the kernel, this will attempt to emulate setuid and setgid
2060 * on scripts that have those now-otherwise-useless bits set. The setuid
2061 * root version must be called suidperl or sperlN.NNN. If regular perl
2062 * discovers that it has opened a setuid script, it calls suidperl with
2063 * the same argv that it had. If suidperl finds that the script it has
2064 * just opened is NOT setuid root, it sets the effective uid back to the
2065 * uid. We don't just make perl setuid root because that loses the
2066 * effective uid we had before invoking perl, if it was different from the
2069 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2070 * be defined in suidperl only. suidperl must be setuid root. The
2071 * Configure script will set this up for you if you want it.
2078 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2079 croak("Can't stat script \"%s\"",PL_origfilename);
2080 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2084 #ifndef HAS_SETREUID
2085 /* On this access check to make sure the directories are readable,
2086 * there is actually a small window that the user could use to make
2087 * filename point to an accessible directory. So there is a faint
2088 * chance that someone could execute a setuid script down in a
2089 * non-accessible directory. I don't know what to do about that.
2090 * But I don't think it's too important. The manual lies when
2091 * it says access() is useful in setuid programs.
2093 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2094 croak("Permission denied");
2096 /* If we can swap euid and uid, then we can determine access rights
2097 * with a simple stat of the file, and then compare device and
2098 * inode to make sure we did stat() on the same file we opened.
2099 * Then we just have to make sure he or she can execute it.
2102 struct stat tmpstatbuf;
2106 setreuid(PL_euid,PL_uid) < 0
2109 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2112 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2113 croak("Can't swap uid and euid"); /* really paranoid */
2114 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2115 croak("Permission denied"); /* testing full pathname here */
2116 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2117 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2118 (void)PerlIO_close(PL_rsfp);
2119 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2120 PerlIO_printf(PL_rsfp,
2121 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2122 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2123 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2124 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2125 SvPVX(GvSV(PL_curcop->cop_filegv)),
2126 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2127 (void)PerlProc_pclose(PL_rsfp);
2129 croak("Permission denied\n");
2133 setreuid(PL_uid,PL_euid) < 0
2135 # if defined(HAS_SETRESUID)
2136 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2139 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2140 croak("Can't reswap uid and euid");
2141 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2142 croak("Permission denied\n");
2144 #endif /* HAS_SETREUID */
2145 #endif /* IAMSUID */
2147 if (!S_ISREG(PL_statbuf.st_mode))
2148 croak("Permission denied");
2149 if (PL_statbuf.st_mode & S_IWOTH)
2150 croak("Setuid/gid script is writable by world");
2151 PL_doswitches = FALSE; /* -s is insecure in suid */
2152 PL_curcop->cop_line++;
2153 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2154 strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
2155 croak("No #! line");
2156 s = SvPV(PL_linestr,PL_na)+2;
2158 while (!isSPACE(*s)) s++;
2159 for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
2160 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2161 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2162 croak("Not a perl script");
2163 while (*s == ' ' || *s == '\t') s++;
2165 * #! arg must be what we saw above. They can invoke it by
2166 * mentioning suidperl explicitly, but they may not add any strange
2167 * arguments beyond what #! says if they do invoke suidperl that way.
2169 len = strlen(validarg);
2170 if (strEQ(validarg," PHOOEY ") ||
2171 strnNE(s,validarg,len) || !isSPACE(s[len]))
2172 croak("Args must match #! line");
2175 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2176 PL_euid == PL_statbuf.st_uid)
2178 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2179 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2180 #endif /* IAMSUID */
2182 if (PL_euid) { /* oops, we're not the setuid root perl */
2183 (void)PerlIO_close(PL_rsfp);
2186 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2188 croak("Can't do setuid\n");
2191 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2193 (void)setegid(PL_statbuf.st_gid);
2196 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2198 #ifdef HAS_SETRESGID
2199 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2201 PerlProc_setgid(PL_statbuf.st_gid);
2205 if (PerlProc_getegid() != PL_statbuf.st_gid)
2206 croak("Can't do setegid!\n");
2208 if (PL_statbuf.st_mode & S_ISUID) {
2209 if (PL_statbuf.st_uid != PL_euid)
2211 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2214 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2216 #ifdef HAS_SETRESUID
2217 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2219 PerlProc_setuid(PL_statbuf.st_uid);
2223 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2224 croak("Can't do seteuid!\n");
2226 else if (PL_uid) { /* oops, mustn't run as root */
2228 (void)seteuid((Uid_t)PL_uid);
2231 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2233 #ifdef HAS_SETRESUID
2234 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2236 PerlProc_setuid((Uid_t)PL_uid);
2240 if (PerlProc_geteuid() != PL_uid)
2241 croak("Can't do seteuid!\n");
2244 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2245 croak("Permission denied\n"); /* they can't do this */
2248 else if (PL_preprocess)
2249 croak("-P not allowed for setuid/setgid script\n");
2250 else if (fdscript >= 0)
2251 croak("fd script not allowed in suidperl\n");
2253 croak("Script is not setuid/setgid in suidperl\n");
2255 /* We absolutely must clear out any saved ids here, so we */
2256 /* exec the real perl, substituting fd script for scriptname. */
2257 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2258 PerlIO_rewind(PL_rsfp);
2259 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2260 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2261 if (!PL_origargv[which])
2262 croak("Permission denied");
2263 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2264 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2265 #if defined(HAS_FCNTL) && defined(F_SETFD)
2266 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2268 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2269 croak("Can't do setuid\n");
2270 #endif /* IAMSUID */
2272 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2273 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2275 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2276 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2278 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2281 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2282 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2283 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2284 /* not set-id, must be wrapped */
2290 find_beginning(void)
2292 register char *s, *s2;
2294 /* skip forward in input to the real script? */
2297 while (PL_doextract) {
2298 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2299 croak("No Perl script found in input\n");
2300 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2301 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2302 PL_doextract = FALSE;
2303 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2305 while (*s == ' ' || *s == '\t') s++;
2307 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2308 if (strnEQ(s2-4,"perl",4))
2310 while (s = moreswitches(s)) ;
2312 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2313 croak("Can't chdir to %s",PL_cddir);
2322 PL_uid = (int)PerlProc_getuid();
2323 PL_euid = (int)PerlProc_geteuid();
2324 PL_gid = (int)PerlProc_getgid();
2325 PL_egid = (int)PerlProc_getegid();
2327 PL_uid |= PL_gid << 16;
2328 PL_euid |= PL_egid << 16;
2330 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2334 forbid_setid(char *s)
2336 if (PL_euid != PL_uid)
2337 croak("No %s allowed while running setuid", s);
2338 if (PL_egid != PL_gid)
2339 croak("No %s allowed while running setgid", s);
2346 PL_curstash = PL_debstash;
2347 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2348 AvREAL_off(PL_dbargs);
2349 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2350 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2351 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2352 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2353 sv_setiv(PL_DBsingle, 0);
2354 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2355 sv_setiv(PL_DBtrace, 0);
2356 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2357 sv_setiv(PL_DBsignal, 0);
2358 PL_curstash = PL_defstash;
2361 #ifndef STRESS_REALLOC
2362 #define REASONABLE(size) (size)
2364 #define REASONABLE(size) (1) /* unreasonable */
2368 init_stacks(ARGSproto)
2370 /* start with 128-item stack and 8K cxstack */
2371 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2372 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2373 PL_curstackinfo->si_type = PERLSI_MAIN;
2374 PL_curstack = PL_curstackinfo->si_stack;
2375 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2377 PL_stack_base = AvARRAY(PL_curstack);
2378 PL_stack_sp = PL_stack_base;
2379 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2381 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2384 PL_tmps_max = REASONABLE(128);
2386 New(54,PL_markstack,REASONABLE(32),I32);
2387 PL_markstack_ptr = PL_markstack;
2388 PL_markstack_max = PL_markstack + REASONABLE(32);
2392 New(54,PL_scopestack,REASONABLE(32),I32);
2393 PL_scopestack_ix = 0;
2394 PL_scopestack_max = REASONABLE(32);
2396 New(54,PL_savestack,REASONABLE(128),ANY);
2397 PL_savestack_ix = 0;
2398 PL_savestack_max = REASONABLE(128);
2400 New(54,PL_retstack,REASONABLE(16),OP*);
2402 PL_retstack_max = REASONABLE(16);
2411 while (PL_curstackinfo->si_next)
2412 PL_curstackinfo = PL_curstackinfo->si_next;
2413 while (PL_curstackinfo) {
2414 PERL_SI *p = PL_curstackinfo->si_prev;
2415 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2416 Safefree(PL_curstackinfo->si_cxstack);
2417 Safefree(PL_curstackinfo);
2418 PL_curstackinfo = p;
2420 Safefree(PL_tmps_stack);
2421 Safefree(PL_markstack);
2422 Safefree(PL_scopestack);
2423 Safefree(PL_savestack);
2424 Safefree(PL_retstack);
2426 Safefree(PL_debname);
2427 Safefree(PL_debdelim);
2432 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2443 lex_start(PL_linestr);
2445 PL_subname = newSVpv("main",4);
2449 init_predump_symbols(void)
2455 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2456 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2457 GvMULTI_on(PL_stdingv);
2458 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2459 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2461 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2463 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2465 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2467 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2469 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2471 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2472 GvMULTI_on(othergv);
2473 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2474 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2476 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2478 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2481 PL_osname = savepv(OSNAME);
2485 init_postdump_symbols(register int argc, register char **argv, register char **env)
2492 argc--,argv++; /* skip name of script */
2493 if (PL_doswitches) {
2494 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2497 if (argv[0][1] == '-') {
2501 if (s = strchr(argv[0], '=')) {
2503 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2506 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2509 PL_toptarget = NEWSV(0,0);
2510 sv_upgrade(PL_toptarget, SVt_PVFM);
2511 sv_setpvn(PL_toptarget, "", 0);
2512 PL_bodytarget = NEWSV(0,0);
2513 sv_upgrade(PL_bodytarget, SVt_PVFM);
2514 sv_setpvn(PL_bodytarget, "", 0);
2515 PL_formtarget = PL_bodytarget;
2518 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2519 sv_setpv(GvSV(tmpgv),PL_origfilename);
2520 magicname("0", "0", 1);
2522 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2523 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2524 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2525 GvMULTI_on(PL_argvgv);
2526 (void)gv_AVadd(PL_argvgv);
2527 av_clear(GvAVn(PL_argvgv));
2528 for (; argc > 0; argc--,argv++) {
2529 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2532 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2534 GvMULTI_on(PL_envgv);
2535 hv = GvHVn(PL_envgv);
2536 hv_magic(hv, PL_envgv, 'E');
2537 #ifndef VMS /* VMS doesn't have environ array */
2538 /* Note that if the supplied env parameter is actually a copy
2539 of the global environ then it may now point to free'd memory
2540 if the environment has been modified since. To avoid this
2541 problem we treat env==NULL as meaning 'use the default'
2546 environ[0] = Nullch;
2547 for (; *env; env++) {
2548 if (!(s = strchr(*env,'=')))
2554 sv = newSVpv(s--,0);
2555 (void)hv_store(hv, *env, s - *env, sv, 0);
2557 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2558 /* Sins of the RTL. See note in my_setenv(). */
2559 (void)PerlEnv_putenv(savepv(*env));
2563 #ifdef DYNAMIC_ENV_FETCH
2564 HvNAME(hv) = savepv(ENV_HV_NAME);
2568 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2569 sv_setiv(GvSV(tmpgv), (IV)getpid());
2578 s = PerlEnv_getenv("PERL5LIB");
2582 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2584 /* Treat PERL5?LIB as a possible search list logical name -- the
2585 * "natural" VMS idiom for a Unix path string. We allow each
2586 * element to be a set of |-separated directories for compatibility.
2590 if (my_trnlnm("PERL5LIB",buf,0))
2591 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2593 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2597 /* Use the ~-expanded versions of APPLLIB (undocumented),
2598 ARCHLIB PRIVLIB SITEARCH and SITELIB
2601 incpush(APPLLIB_EXP, TRUE);
2605 incpush(ARCHLIB_EXP, FALSE);
2608 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2611 incpush(PRIVLIB_EXP, TRUE);
2613 incpush(PRIVLIB_EXP, FALSE);
2617 incpush(SITEARCH_EXP, FALSE);
2621 incpush(SITELIB_EXP, TRUE);
2623 incpush(SITELIB_EXP, FALSE);
2627 incpush(".", FALSE);
2631 # define PERLLIB_SEP ';'
2634 # define PERLLIB_SEP '|'
2636 # define PERLLIB_SEP ':'
2639 #ifndef PERLLIB_MANGLE
2640 # define PERLLIB_MANGLE(s,n) (s)
2644 incpush(char *p, int addsubdirs)
2646 SV *subdir = Nullsv;
2652 subdir = sv_newmortal();
2653 if (!PL_archpat_auto) {
2654 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2655 + sizeof("//auto"));
2656 New(55, PL_archpat_auto, len, char);
2657 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2659 for (len = sizeof(ARCHNAME) + 2;
2660 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2661 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2666 /* Break at all separators */
2668 SV *libdir = NEWSV(55,0);
2671 /* skip any consecutive separators */
2672 while ( *p == PERLLIB_SEP ) {
2673 /* Uncomment the next line for PATH semantics */
2674 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2678 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2679 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2684 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2685 p = Nullch; /* break out */
2689 * BEFORE pushing libdir onto @INC we may first push version- and
2690 * archname-specific sub-directories.
2693 struct stat tmpstatbuf;
2698 if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
2700 while (unix[len-1] == '/') len--; /* Cosmetic */
2701 sv_usepvn(libdir,unix,len);
2704 PerlIO_printf(PerlIO_stderr(),
2705 "Failed to unixify @INC element \"%s\"\n",
2706 SvPV(libdir,PL_na));
2708 /* .../archname/version if -d .../archname/version/auto */
2709 sv_setsv(subdir, libdir);
2710 sv_catpv(subdir, PL_archpat_auto);
2711 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2712 S_ISDIR(tmpstatbuf.st_mode))
2713 av_push(GvAVn(PL_incgv),
2714 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2716 /* .../archname if -d .../archname/auto */
2717 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2718 strlen(PL_patchlevel) + 1, "", 0);
2719 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2720 S_ISDIR(tmpstatbuf.st_mode))
2721 av_push(GvAVn(PL_incgv),
2722 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2725 /* finally push this lib directory on the end of @INC */
2726 av_push(GvAVn(PL_incgv), libdir);
2731 STATIC struct perl_thread *
2734 struct perl_thread *thr;
2737 Newz(53, thr, 1, struct perl_thread);
2738 PL_curcop = &PL_compiling;
2739 thr->cvcache = newHV();
2740 thr->threadsv = newAV();
2741 /* thr->threadsvp is set when find_threadsv is called */
2742 thr->specific = newAV();
2743 thr->errhv = newHV();
2744 thr->flags = THRf_R_JOINABLE;
2745 MUTEX_INIT(&thr->mutex);
2746 /* Handcraft thrsv similarly to mess_sv */
2747 New(53, PL_thrsv, 1, SV);
2748 Newz(53, xpv, 1, XPV);
2749 SvFLAGS(PL_thrsv) = SVt_PV;
2750 SvANY(PL_thrsv) = (void*)xpv;
2751 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2752 SvPVX(PL_thrsv) = (char*)thr;
2753 SvCUR_set(PL_thrsv, sizeof(thr));
2754 SvLEN_set(PL_thrsv, sizeof(thr));
2755 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2756 thr->oursv = PL_thrsv;
2757 PL_chopset = " \n-";
2759 MUTEX_LOCK(&PL_threads_mutex);
2764 MUTEX_UNLOCK(&PL_threads_mutex);
2766 #ifdef HAVE_THREAD_INTERN
2767 init_thread_intern(thr);
2770 #ifdef SET_THREAD_SELF
2771 SET_THREAD_SELF(thr);
2773 thr->self = pthread_self();
2774 #endif /* SET_THREAD_SELF */
2778 * These must come after the SET_THR because sv_setpvn does
2779 * SvTAINT and the taint fields require dTHR.
2781 PL_toptarget = NEWSV(0,0);
2782 sv_upgrade(PL_toptarget, SVt_PVFM);
2783 sv_setpvn(PL_toptarget, "", 0);
2784 PL_bodytarget = NEWSV(0,0);
2785 sv_upgrade(PL_bodytarget, SVt_PVFM);
2786 sv_setpvn(PL_bodytarget, "", 0);
2787 PL_formtarget = PL_bodytarget;
2788 thr->errsv = newSVpv("", 0);
2789 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2792 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2793 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2795 PL_reginterp_cnt = 0;
2799 #endif /* USE_THREADS */
2802 call_list(I32 oldscope, AV *paramList)
2805 line_t oldline = PL_curcop->cop_line;
2810 while (AvFILL(paramList) >= 0) {
2811 CV *cv = (CV*)av_shift(paramList);
2819 PUSHMARK(PL_stack_sp);
2820 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2821 (void)SvPV(atsv, len);
2824 PL_curcop = &PL_compiling;
2825 PL_curcop->cop_line = oldline;
2826 if (paramList == PL_beginav)
2827 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2829 sv_catpv(atsv, "END failed--cleanup aborted");
2830 while (PL_scopestack_ix > oldscope)
2832 croak("%s", SvPVX(atsv));
2840 /* my_exit() was called */
2841 while (PL_scopestack_ix > oldscope)
2844 PL_curstash = PL_defstash;
2846 call_list(oldscope, PL_endav);
2848 PL_curcop = &PL_compiling;
2849 PL_curcop->cop_line = oldline;
2850 if (PL_statusvalue) {
2851 if (paramList == PL_beginav)
2852 croak("BEGIN failed--compilation aborted");
2854 croak("END failed--cleanup aborted");
2859 if (!PL_restartop) {
2860 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2865 PL_curcop = &PL_compiling;
2866 PL_curcop->cop_line = oldline;
2879 DEBUG_L(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2880 thr, (unsigned long) status));
2881 #endif /* USE_THREADS */
2890 STATUS_NATIVE_SET(status);
2897 my_failure_exit(void)
2900 if (vaxc$errno & 1) {
2901 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2902 STATUS_NATIVE_SET(44);
2905 if (!vaxc$errno && errno) /* unlikely */
2906 STATUS_NATIVE_SET(44);
2908 STATUS_NATIVE_SET(vaxc$errno);
2913 STATUS_POSIX_SET(errno);
2915 exitstatus = STATUS_POSIX >> 8;
2916 if (exitstatus & 255)
2917 STATUS_POSIX_SET(exitstatus);
2919 STATUS_POSIX_SET(255);
2929 register PERL_CONTEXT *cx;
2934 SvREFCNT_dec(PL_e_script);
2935 PL_e_script = Nullsv;
2938 POPSTACK_TO(PL_mainstack);
2939 if (cxstack_ix >= 0) {
2942 POPBLOCK(cx,PL_curpm);
2954 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
2956 read_e_script(int idx, SV *buf_sv, int maxlen)
2960 p = SvPVX(PL_e_script);
2961 nl = strchr(p, '\n');
2962 nl = (nl) ? nl+1 : SvEND(PL_e_script);
2965 sv_catpvn(buf_sv, p, nl-p);
2966 sv_chop(PL_e_script, nl);