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> */
40 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
47 static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
49 static void find_beginning _((void));
50 static void forbid_setid _((char *));
51 static void incpush _((char *, int));
52 static void init_interp _((void));
53 static void init_ids _((void));
54 static void init_debugger _((void));
55 static void init_lexer _((void));
56 static void init_main_stash _((void));
58 static struct perl_thread * init_main_thread _((void));
59 #endif /* USE_THREADS */
60 static void init_perllib _((void));
61 static void init_postdump_symbols _((int, char **, char **));
62 static void init_predump_symbols _((void));
63 static void my_exit_jump _((void)) __attribute__((noreturn));
64 static void nuke_stacks _((void));
65 static void open_script _((char *, bool, SV *, int *fd));
66 static void usage _((char *));
67 static void validate_suid _((char *, char*, int));
68 static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
72 CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
73 IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
75 CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
85 PerlInterpreter *sv_interp;
88 New(53, sv_interp, 1, PerlInterpreter);
91 #endif /* PERL_OBJECT */
97 perl_construct(register PerlInterpreter *sv_interp)
103 struct perl_thread *thr;
104 #endif /* FAKE_THREADS */
105 #endif /* USE_THREADS */
108 if (!(PL_curinterp = sv_interp))
114 Zero(sv_interp, 1, PerlInterpreter);
117 /* Init the real globals (and main thread)? */
122 #ifdef ALLOC_THREAD_KEY
125 if (pthread_key_create(&PL_thr_key, 0))
126 croak("panic: pthread_key_create");
128 MUTEX_INIT(&PL_sv_mutex);
130 * Safe to use basic SV functions from now on (though
131 * not things like mortals or tainting yet).
133 MUTEX_INIT(&PL_eval_mutex);
134 COND_INIT(&PL_eval_cond);
135 MUTEX_INIT(&PL_threads_mutex);
136 COND_INIT(&PL_nthreads_cond);
137 #ifdef EMULATE_ATOMIC_REFCOUNTS
138 MUTEX_INIT(&PL_svref_mutex);
139 #endif /* EMULATE_ATOMIC_REFCOUNTS */
141 MUTEX_INIT(&PL_cred_mutex);
143 thr = init_main_thread();
144 #endif /* USE_THREADS */
146 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
148 PL_linestr = NEWSV(65,79);
149 sv_upgrade(PL_linestr,SVt_PVIV);
151 if (!SvREADONLY(&PL_sv_undef)) {
152 /* set read-only and try to insure than we wont see REFCNT==0
155 SvREADONLY_on(&PL_sv_undef);
156 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
158 sv_setpv(&PL_sv_no,PL_No);
160 SvREADONLY_on(&PL_sv_no);
161 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
163 sv_setpv(&PL_sv_yes,PL_Yes);
165 SvREADONLY_on(&PL_sv_yes);
166 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
171 /* PL_sighandlerp = sighandler; */
173 PL_sighandlerp = sighandler;
175 PL_pidstatus = newHV();
179 * There is no way we can refer to them from Perl so close them to save
180 * space. The other alternative would be to provide STDAUX and STDPRN
183 (void)fclose(stdaux);
184 (void)fclose(stdprn);
188 PL_nrs = newSVpv("\n", 1);
189 PL_rs = SvREFCNT_inc(PL_nrs);
194 PL_perl_destruct_level = 1;
196 if (PL_perl_destruct_level > 0)
201 PL_lex_state = LEX_NOTPARSING;
203 PL_start_env.je_prev = NULL;
204 PL_start_env.je_ret = -1;
205 PL_start_env.je_mustcatch = TRUE;
206 PL_top_env = &PL_start_env;
209 SET_NUMERIC_STANDARD();
210 #if defined(SUBVERSION) && SUBVERSION > 0
211 sprintf(PL_patchlevel, "%7.5f", (double) 5
212 + ((double) PATCHLEVEL / (double) 1000)
213 + ((double) SUBVERSION / (double) 100000));
215 sprintf(PL_patchlevel, "%5.3f", (double) 5 +
216 ((double) PATCHLEVEL / (double) 1000));
219 #if defined(LOCAL_PATCH_COUNT)
220 PL_localpatches = local_patches; /* For possible -v */
223 PerlIO_init(); /* Hook to IO system */
225 PL_fdpid = newAV(); /* for remembering popen pids by fd */
226 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
229 New(51,PL_debname,128,char);
230 New(52,PL_debdelim,128,char);
240 perl_destruct(register PerlInterpreter *sv_interp)
244 int destruct_level; /* 0=none, 1=full, 2=full with checks */
249 #endif /* USE_THREADS */
252 if (!(PL_curinterp = sv_interp))
258 /* Pass 1 on any remaining threads: detach joinables, join zombies */
260 MUTEX_LOCK(&PL_threads_mutex);
261 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
262 "perl_destruct: waiting for %d threads...\n",
264 for (t = thr->next; t != thr; t = t->next) {
265 MUTEX_LOCK(&t->mutex);
266 switch (ThrSTATE(t)) {
269 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
270 "perl_destruct: joining zombie %p\n", t));
271 ThrSETSTATE(t, THRf_DEAD);
272 MUTEX_UNLOCK(&t->mutex);
275 * The SvREFCNT_dec below may take a long time (e.g. av
276 * may contain an object scalar whose destructor gets
277 * called) so we have to unlock threads_mutex and start
280 MUTEX_UNLOCK(&PL_threads_mutex);
282 SvREFCNT_dec((SV*)av);
283 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
284 "perl_destruct: joined zombie %p OK\n", t));
286 case THRf_R_JOINABLE:
287 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
288 "perl_destruct: detaching thread %p\n", t));
289 ThrSETSTATE(t, THRf_R_DETACHED);
291 * We unlock threads_mutex and t->mutex in the opposite order
292 * from which we locked them just so that DETACH won't
293 * deadlock if it panics. It's only a breach of good style
294 * not a bug since they are unlocks not locks.
296 MUTEX_UNLOCK(&PL_threads_mutex);
298 MUTEX_UNLOCK(&t->mutex);
301 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
302 "perl_destruct: ignoring %p (state %u)\n",
304 MUTEX_UNLOCK(&t->mutex);
305 /* fall through and out */
308 /* We leave the above "Pass 1" loop with threads_mutex still locked */
310 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
311 while (PL_nthreads > 1)
313 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
314 "perl_destruct: final wait for %d threads\n",
316 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
318 /* At this point, we're the last thread */
319 MUTEX_UNLOCK(&PL_threads_mutex);
320 DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
321 MUTEX_DESTROY(&PL_threads_mutex);
322 COND_DESTROY(&PL_nthreads_cond);
323 #endif /* !defined(FAKE_THREADS) */
324 #endif /* USE_THREADS */
326 destruct_level = PL_perl_destruct_level;
330 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
332 if (destruct_level < i)
345 /* We must account for everything. */
347 /* Destroy the main CV and syntax tree */
349 PL_curpad = AvARRAY(PL_comppad);
350 op_free(PL_main_root);
351 PL_main_root = Nullop;
353 PL_curcop = &PL_compiling;
354 PL_main_start = Nullop;
355 SvREFCNT_dec(PL_main_cv);
359 if (PL_sv_objcount) {
361 * Try to destruct global references. We do this first so that the
362 * destructors and destructees still exist. Some sv's might remain.
363 * Non-referenced objects are on their own.
368 /* unhook hooks which will soon be, or use, destroyed data */
369 SvREFCNT_dec(PL_warnhook);
370 PL_warnhook = Nullsv;
371 SvREFCNT_dec(PL_diehook);
373 SvREFCNT_dec(PL_parsehook);
374 PL_parsehook = Nullsv;
376 /* call exit list functions */
377 while (PL_exitlistlen-- > 0)
378 PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
380 Safefree(PL_exitlist);
382 if (destruct_level == 0){
384 DEBUG_P(debprofdump());
386 /* The exit() function will do everything that needs doing. */
390 /* loosen bonds of global variables */
393 (void)PerlIO_close(PL_rsfp);
397 /* Filters for program text */
398 SvREFCNT_dec(PL_rsfp_filters);
399 PL_rsfp_filters = Nullav;
402 PL_preprocess = FALSE;
408 PL_doswitches = FALSE;
409 PL_dowarn = G_WARN_OFF;
410 PL_doextract = FALSE;
411 PL_sawampersand = FALSE; /* must save all match strings */
412 PL_sawstudy = FALSE; /* do fbm_instr on all strings */
416 Safefree(PL_inplace);
420 SvREFCNT_dec(PL_e_script);
421 PL_e_script = Nullsv;
424 /* magical thingies */
426 Safefree(PL_ofs); /* $, */
429 Safefree(PL_ors); /* $\ */
432 SvREFCNT_dec(PL_rs); /* $/ */
435 SvREFCNT_dec(PL_nrs); /* $/ helper */
438 PL_multiline = 0; /* $* */
440 SvREFCNT_dec(PL_statname);
441 PL_statname = Nullsv;
444 /* defgv, aka *_ should be taken care of elsewhere */
446 /* clean up after study() */
447 SvREFCNT_dec(PL_lastscream);
448 PL_lastscream = Nullsv;
449 Safefree(PL_screamfirst);
451 Safefree(PL_screamnext);
454 /* startup and shutdown function lists */
455 SvREFCNT_dec(PL_beginav);
456 SvREFCNT_dec(PL_endav);
457 SvREFCNT_dec(PL_initav);
462 /* shortcuts just get cleared */
469 PL_argvoutgv = Nullgv;
471 PL_last_in_gv = Nullgv;
474 /* reset so print() ends up where we expect */
477 /* Prepare to destruct main symbol table. */
484 if (destruct_level >= 2) {
485 if (PL_scopestack_ix != 0)
486 warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
487 (long)PL_scopestack_ix);
488 if (PL_savestack_ix != 0)
489 warn("Unbalanced saves: %ld more saves than restores\n",
490 (long)PL_savestack_ix);
491 if (PL_tmps_floor != -1)
492 warn("Unbalanced tmps: %ld more allocs than frees\n",
493 (long)PL_tmps_floor + 1);
494 if (cxstack_ix != -1)
495 warn("Unbalanced context: %ld more PUSHes than POPs\n",
496 (long)cxstack_ix + 1);
499 /* Now absolutely destruct everything, somehow or other, loops or no. */
501 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
502 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
503 last_sv_count = PL_sv_count;
506 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
507 SvFLAGS(PL_strtab) |= SVt_PVHV;
509 /* Destruct the global string table. */
511 /* Yell and reset the HeVAL() slots that are still holding refcounts,
512 * so that sv_free() won't fail on them.
520 max = HvMAX(PL_strtab);
521 array = HvARRAY(PL_strtab);
525 warn("Unbalanced string table refcount: (%d) for \"%s\"",
526 HeVAL(hent) - Nullsv, HeKEY(hent));
527 HeVAL(hent) = Nullsv;
537 SvREFCNT_dec(PL_strtab);
539 if (PL_sv_count != 0)
540 warn("Scalars leaked: %ld\n", (long)PL_sv_count);
544 /* No SVs have survived, need to clean out */
546 PL_pidstatus = Nullhv;
547 Safefree(PL_origfilename);
548 Safefree(PL_archpat_auto);
549 Safefree(PL_reg_start_tmp);
551 Safefree(PL_reg_curpm);
552 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
553 Safefree(PL_op_mask);
555 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
557 DEBUG_P(debprofdump());
559 MUTEX_DESTROY(&PL_strtab_mutex);
560 MUTEX_DESTROY(&PL_sv_mutex);
561 MUTEX_DESTROY(&PL_eval_mutex);
562 MUTEX_DESTROY(&PL_cred_mutex);
563 COND_DESTROY(&PL_eval_cond);
565 /* As the penultimate thing, free the non-arena SV for thrsv */
566 Safefree(SvPVX(PL_thrsv));
567 Safefree(SvANY(PL_thrsv));
570 #endif /* USE_THREADS */
572 /* As the absolutely last thing, free the non-arena SV for mess() */
575 /* it could have accumulated taint magic */
576 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
579 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
580 moremagic = mg->mg_moremagic;
581 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
582 Safefree(mg->mg_ptr);
586 /* we know that type >= SVt_PV */
587 SvOOK_off(PL_mess_sv);
588 Safefree(SvPVX(PL_mess_sv));
589 Safefree(SvANY(PL_mess_sv));
590 Safefree(PL_mess_sv);
599 perl_free(PerlInterpreter *sv_interp)
605 if (!(PL_curinterp = sv_interp))
613 perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
615 perl_atexit(void (*fn) (void *), void *ptr)
618 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
619 PL_exitlist[PL_exitlistlen].fn = fn;
620 PL_exitlist[PL_exitlistlen].ptr = ptr;
626 perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
628 perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
634 char *scriptname = NULL;
635 VOL bool dosearch = FALSE;
643 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
646 croak("suidperl is no longer needed since the kernel can now execute\n\
647 setuid perl scripts securely.\n");
652 if (!(PL_curinterp = sv_interp))
656 #if defined(NeXT) && defined(__DYNAMIC__)
657 _dyld_lookup_and_bind
658 ("__environ", (unsigned long *) &environ_pointer, NULL);
663 #ifndef VMS /* VMS doesn't have environ array */
664 PL_origenviron = environ;
669 /* Come here if running an undumped a.out. */
671 PL_origfilename = savepv(argv[0]);
672 PL_do_undump = FALSE;
673 cxstack_ix = -1; /* start label stack again */
675 init_postdump_symbols(argc,argv,env);
680 PL_curpad = AvARRAY(PL_comppad);
681 op_free(PL_main_root);
682 PL_main_root = Nullop;
684 PL_main_start = Nullop;
685 SvREFCNT_dec(PL_main_cv);
689 oldscope = PL_scopestack_ix;
690 PL_dowarn = G_WARN_OFF;
698 /* my_exit() was called */
699 while (PL_scopestack_ix > oldscope)
702 PL_curstash = PL_defstash;
704 call_list(oldscope, PL_endav);
706 return STATUS_NATIVE_EXPORT;
709 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
713 sv_setpvn(PL_linestr,"",0);
714 sv = newSVpv("",0); /* first used for -I flags */
718 for (argc--,argv++; argc > 0; argc--,argv++) {
719 if (argv[0][0] != '-' || !argv[0][1])
723 validarg = " PHOOEY ";
751 if (s = moreswitches(s))
761 if (PL_euid != PL_uid || PL_egid != PL_gid)
762 croak("No -e allowed in setuid scripts");
764 PL_e_script = newSVpv("",0);
765 filter_add(read_e_script, NULL);
768 sv_catpv(PL_e_script, s);
770 sv_catpv(PL_e_script, argv[1]);
774 croak("No code specified for -e");
775 sv_catpv(PL_e_script, "\n");
778 case 'I': /* -I handled both here and in moreswitches() */
780 if (!*++s && (s=argv[1]) != Nullch) {
783 while (s && isSPACE(*s))
787 for (e = s; *e && !isSPACE(*e); e++) ;
794 } /* XXX else croak? */
798 PL_preprocess = TRUE;
808 PL_preambleav = newAV();
809 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
811 PL_Sv = newSVpv("print myconfig();",0);
813 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
815 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
817 #if defined(DEBUGGING) || defined(MULTIPLICITY)
818 sv_catpv(PL_Sv,"\" Compile-time options:");
820 sv_catpv(PL_Sv," DEBUGGING");
823 sv_catpv(PL_Sv," MULTIPLICITY");
825 sv_catpv(PL_Sv,"\\n\",");
827 #if defined(LOCAL_PATCH_COUNT)
828 if (LOCAL_PATCH_COUNT > 0) {
830 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
831 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
832 if (PL_localpatches[i])
833 sv_catpvf(PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
837 sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME);
840 sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
842 sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
847 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
848 print \" \\%ENV:\\n @env\\n\" if @env; \
849 print \" \\@INC:\\n @INC\\n\";");
852 PL_Sv = newSVpv("config_vars(qw(",0);
853 sv_catpv(PL_Sv, ++s);
854 sv_catpv(PL_Sv, "))");
857 av_push(PL_preambleav, PL_Sv);
858 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
864 PL_cddir = savepv(s);
869 if (!*++s || isSPACE(*s)) {
873 /* catch use of gnu style long options */
874 if (strEQ(s, "version")) {
878 if (strEQ(s, "help")) {
885 croak("Unrecognized switch: -%s (-h will show valid options)",s);
890 if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) {
901 if (!strchr("DIMUdmw", *s))
902 croak("Illegal switch in PERL5OPT: -%c", *s);
908 scriptname = argv[0];
911 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
913 else if (scriptname == Nullch) {
915 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
923 open_script(scriptname,dosearch,sv,&fdscript);
925 validate_suid(validarg, scriptname,fdscript);
930 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
931 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
932 CvUNIQUE_on(PL_compcv);
934 PL_comppad = newAV();
935 av_push(PL_comppad, Nullsv);
936 PL_curpad = AvARRAY(PL_comppad);
937 PL_comppad_name = newAV();
938 PL_comppad_name_fill = 0;
939 PL_min_intro_pending = 0;
942 av_store(PL_comppad_name, 0, newSVpv("@_", 2));
943 PL_curpad[0] = (SV*)newAV();
944 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
945 CvOWNER(PL_compcv) = 0;
946 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
947 MUTEX_INIT(CvMUTEXP(PL_compcv));
948 #endif /* USE_THREADS */
950 comppadlist = newAV();
951 AvREAL_off(comppadlist);
952 av_store(comppadlist, 0, (SV*)PL_comppad_name);
953 av_store(comppadlist, 1, (SV*)PL_comppad);
954 CvPADLIST(PL_compcv) = comppadlist;
956 boot_core_UNIVERSAL();
959 (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */
960 #if defined(VMS) || defined(WIN32) || defined(DJGPP)
964 init_predump_symbols();
965 /* init_postdump_symbols not currently designed to be called */
966 /* more than once (ENV isn't cleared first, for example) */
967 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
969 init_postdump_symbols(argc,argv,env);
973 /* now parse the script */
975 SETERRNO(0,SS$_NORMAL);
977 if (yyparse() || PL_error_count) {
979 croak("%s had compilation errors.\n", PL_origfilename);
981 croak("Execution of %s aborted due to compilation errors.\n",
985 PL_curcop->cop_line = 0;
986 PL_curstash = PL_defstash;
987 PL_preprocess = FALSE;
989 SvREFCNT_dec(PL_e_script);
990 PL_e_script = Nullsv;
993 /* now that script is parsed, we can modify record separator */
995 PL_rs = SvREFCNT_inc(PL_nrs);
996 sv_setsv(perl_get_sv("/", TRUE), PL_rs);
1000 if (ckWARN(WARN_ONCE))
1001 gv_check(PL_defstash);
1007 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1008 dump_mstats("after compilation:");
1021 perl_run(PerlInterpreter *sv_interp)
1030 if (!(PL_curinterp = sv_interp))
1034 oldscope = PL_scopestack_ix;
1039 cxstack_ix = -1; /* start context stack again */
1042 /* my_exit() was called */
1043 while (PL_scopestack_ix > oldscope)
1046 PL_curstash = PL_defstash;
1048 call_list(oldscope, PL_endav);
1050 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1051 dump_mstats("after execution: ");
1054 return STATUS_NATIVE_EXPORT;
1056 if (!PL_restartop) {
1057 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
1062 POPSTACK_TO(PL_mainstack);
1066 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1067 PL_sawampersand ? "Enabling" : "Omitting"));
1069 if (!PL_restartop) {
1070 DEBUG_x(dump_all());
1071 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1072 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n",
1073 (unsigned long) thr));
1076 PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename);
1079 if (PERLDB_SINGLE && PL_DBsingle)
1080 sv_setiv(PL_DBsingle, 1);
1082 call_list(oldscope, PL_initav);
1088 PL_op = PL_restartop;
1092 else if (PL_main_start) {
1093 CvDEPTH(PL_main_cv) = 1;
1094 PL_op = PL_main_start;
1104 perl_get_sv(char *name, I32 create)
1108 if (name[1] == '\0' && !isALPHA(name[0])) {
1109 PADOFFSET tmp = find_threadsv(name);
1110 if (tmp != NOT_IN_PAD) {
1112 return THREADSV(tmp);
1115 #endif /* USE_THREADS */
1116 gv = gv_fetchpv(name, create, SVt_PV);
1123 perl_get_av(char *name, I32 create)
1125 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1134 perl_get_hv(char *name, I32 create)
1136 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1145 perl_get_cv(char *name, I32 create)
1147 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1148 /* XXX unsafe for threads if eval_owner isn't held */
1149 if (create && !GvCVu(gv))
1150 return newSUB(start_subparse(FALSE, 0),
1151 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1159 /* Be sure to refetch the stack pointer after calling these routines. */
1162 perl_call_argv(char *sub_name, I32 flags, register char **argv)
1164 /* See G_* flags in cop.h */
1165 /* null terminated arg list */
1172 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1177 return perl_call_pv(sub_name, flags);
1181 perl_call_pv(char *sub_name, I32 flags)
1182 /* name of the subroutine */
1183 /* See G_* flags in cop.h */
1185 return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
1189 perl_call_method(char *methname, I32 flags)
1190 /* name of the subroutine */
1191 /* See G_* flags in cop.h */
1197 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1202 return perl_call_sv(*PL_stack_sp--, flags);
1205 /* May be called with any of a CV, a GV, or an SV containing the name. */
1207 perl_call_sv(SV *sv, I32 flags)
1209 /* See G_* flags in cop.h */
1212 LOGOP myop; /* fake syntax tree node */
1216 bool oldcatch = CATCH_GET;
1221 if (flags & G_DISCARD) {
1226 Zero(&myop, 1, LOGOP);
1227 myop.op_next = Nullop;
1228 if (!(flags & G_NOARGS))
1229 myop.op_flags |= OPf_STACKED;
1230 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1231 (flags & G_ARRAY) ? OPf_WANT_LIST :
1236 EXTEND(PL_stack_sp, 1);
1237 *++PL_stack_sp = sv;
1239 oldscope = PL_scopestack_ix;
1241 if (PERLDB_SUB && PL_curstash != PL_debstash
1242 /* Handle first BEGIN of -d. */
1243 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1244 /* Try harder, since this may have been a sighandler, thus
1245 * curstash may be meaningless. */
1246 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1247 && !(flags & G_NODEBUG))
1248 PL_op->op_private |= OPpENTERSUB_DB;
1250 if (flags & G_EVAL) {
1251 cLOGOP->op_other = PL_op;
1253 /* we're trying to emulate pp_entertry() here */
1255 register PERL_CONTEXT *cx;
1256 I32 gimme = GIMME_V;
1261 push_return(PL_op->op_next);
1262 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1264 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1267 if (flags & G_KEEPERR)
1282 /* my_exit() was called */
1283 PL_curstash = PL_defstash;
1287 croak("Callback called exit");
1292 PL_op = PL_restartop;
1296 PL_stack_sp = PL_stack_base + oldmark;
1297 if (flags & G_ARRAY)
1301 *++PL_stack_sp = &PL_sv_undef;
1309 if (PL_op == (OP*)&myop)
1310 PL_op = pp_entersub(ARGS);
1313 retval = PL_stack_sp - (PL_stack_base + oldmark);
1314 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1318 if (flags & G_EVAL) {
1319 if (PL_scopestack_ix > oldscope) {
1323 register PERL_CONTEXT *cx;
1335 CATCH_SET(oldcatch);
1337 if (flags & G_DISCARD) {
1338 PL_stack_sp = PL_stack_base + oldmark;
1347 /* Eval a string. The G_EVAL flag is always assumed. */
1350 perl_eval_sv(SV *sv, I32 flags)
1352 /* See G_* flags in cop.h */
1355 UNOP myop; /* fake syntax tree node */
1356 I32 oldmark = SP - PL_stack_base;
1363 if (flags & G_DISCARD) {
1370 Zero(PL_op, 1, UNOP);
1371 EXTEND(PL_stack_sp, 1);
1372 *++PL_stack_sp = sv;
1373 oldscope = PL_scopestack_ix;
1375 if (!(flags & G_NOARGS))
1376 myop.op_flags = OPf_STACKED;
1377 myop.op_next = Nullop;
1378 myop.op_type = OP_ENTEREVAL;
1379 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1380 (flags & G_ARRAY) ? OPf_WANT_LIST :
1382 if (flags & G_KEEPERR)
1383 myop.op_flags |= OPf_SPECIAL;
1393 /* my_exit() was called */
1394 PL_curstash = PL_defstash;
1398 croak("Callback called exit");
1403 PL_op = PL_restartop;
1407 PL_stack_sp = PL_stack_base + oldmark;
1408 if (flags & G_ARRAY)
1412 *++PL_stack_sp = &PL_sv_undef;
1417 if (PL_op == (OP*)&myop)
1418 PL_op = pp_entereval(ARGS);
1421 retval = PL_stack_sp - (PL_stack_base + oldmark);
1422 if (!(flags & G_KEEPERR))
1427 if (flags & G_DISCARD) {
1428 PL_stack_sp = PL_stack_base + oldmark;
1438 perl_eval_pv(char *p, I32 croak_on_error)
1441 SV* sv = newSVpv(p, 0);
1444 perl_eval_sv(sv, G_SCALAR);
1451 if (croak_on_error && SvTRUE(ERRSV)) {
1453 croak(SvPVx(ERRSV, n_a));
1459 /* Require a module. */
1462 perl_require_pv(char *pv)
1466 PUSHSTACKi(PERLSI_REQUIRE);
1468 sv = sv_newmortal();
1469 sv_setpv(sv, "require '");
1472 perl_eval_sv(sv, G_DISCARD);
1478 magicname(char *sym, char *name, I32 namlen)
1482 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1483 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1487 usage(char *name) /* XXX move this out into a module ? */
1490 /* This message really ought to be max 23 lines.
1491 * Removed -h because the user already knows that opton. Others? */
1493 static char *usage_msg[] = {
1494 "-0[octal] specify record separator (\\0, if no argument)",
1495 "-a autosplit mode with -n or -p (splits $_ into @F)",
1496 "-c check syntax only (runs BEGIN and END blocks)",
1497 "-d[:debugger] run scripts under debugger",
1498 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1499 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1500 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1501 "-i[extension] edit <> files in place (make backup if extension supplied)",
1502 "-Idirectory specify @INC/#include directory (may be used more than once)",
1503 "-l[octal] enable line ending processing, specifies line terminator",
1504 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1505 "-n assume 'while (<>) { ... }' loop around your script",
1506 "-p assume loop like -n but print line also like sed",
1507 "-P run script through C preprocessor before compilation",
1508 "-s enable some switch parsing for switches after script name",
1509 "-S look for the script using PATH environment variable",
1510 "-T turn on tainting checks",
1511 "-u dump core after parsing script",
1512 "-U allow unsafe operations",
1513 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1514 "-V[:variable] print perl configuration information",
1515 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1516 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1520 char **p = usage_msg;
1522 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1524 printf("\n %s", *p++);
1527 /* This routine handles any switches that can be given during run */
1530 moreswitches(char *s)
1539 rschar = scan_oct(s, 4, &numlen);
1540 SvREFCNT_dec(PL_nrs);
1541 if (rschar & ~((U8)~0))
1542 PL_nrs = &PL_sv_undef;
1543 else if (!rschar && numlen >= 2)
1544 PL_nrs = newSVpv("", 0);
1547 PL_nrs = newSVpv(&ch, 1);
1553 PL_splitstr = savepv(s + 1);
1567 if (*s == ':' || *s == '=') {
1568 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1572 PL_perldb = PERLDB_ALL;
1579 if (isALPHA(s[1])) {
1580 static char debopts[] = "psltocPmfrxuLHXDS";
1583 for (s++; *s && (d = strchr(debopts,*s)); s++)
1584 PL_debug |= 1 << (d - debopts);
1587 PL_debug = atoi(s+1);
1588 for (s++; isDIGIT(*s); s++) ;
1590 PL_debug |= 0x80000000;
1592 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1593 for (s++; isALNUM(*s); s++) ;
1598 usage(PL_origargv[0]);
1602 Safefree(PL_inplace);
1603 PL_inplace = savepv(s+1);
1605 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1608 if (*s == '-') /* Additional switches on #! line. */
1612 case 'I': /* -I handled both here and in parse_perl() */
1615 while (*s && isSPACE(*s))
1619 for (e = s; *e && !isSPACE(*e); e++) ;
1620 p = savepvn(s, e-s);
1626 croak("No space allowed after -I");
1634 PL_ors = savepv("\n");
1636 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1641 if (RsPARA(PL_nrs)) {
1646 PL_ors = SvPV(PL_nrs, PL_orslen);
1647 PL_ors = savepvn(PL_ors, PL_orslen);
1651 forbid_setid("-M"); /* XXX ? */
1654 forbid_setid("-m"); /* XXX ? */
1659 /* -M-foo == 'no foo' */
1660 if (*s == '-') { use = "no "; ++s; }
1661 sv = newSVpv(use,0);
1663 /* We allow -M'Module qw(Foo Bar)' */
1664 while(isALNUM(*s) || *s==':') ++s;
1666 sv_catpv(sv, start);
1667 if (*(start-1) == 'm') {
1669 croak("Can't use '%c' after -mname", *s);
1670 sv_catpv( sv, " ()");
1673 sv_catpvn(sv, start, s-start);
1674 sv_catpv(sv, " split(/,/,q{");
1679 if (PL_preambleav == NULL)
1680 PL_preambleav = newAV();
1681 av_push(PL_preambleav, sv);
1684 croak("No space allowed after -%c", *(s-1));
1696 PL_doswitches = TRUE;
1701 croak("Too late for \"-T\" option");
1705 PL_do_undump = TRUE;
1713 #if defined(SUBVERSION) && SUBVERSION > 0
1714 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1715 PATCHLEVEL, SUBVERSION, ARCHNAME);
1717 printf("\nThis is perl, version %s built for %s",
1718 PL_patchlevel, ARCHNAME);
1720 #if defined(LOCAL_PATCH_COUNT)
1721 if (LOCAL_PATCH_COUNT > 0)
1722 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1723 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1726 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1728 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1731 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1732 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1735 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1736 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1739 printf("atariST series port, ++jrb bammi@cadence.com\n");
1742 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1745 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1748 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
1751 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n");
1754 printf("VM/ESA port by Neale Ferguson, 1998\n");
1757 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n");
1759 #ifdef BINARY_BUILD_NOTICE
1760 BINARY_BUILD_NOTICE;
1763 Perl may be copied only under the terms of either the Artistic License or the\n\
1764 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1765 Complete documentation for Perl, including FAQ lists, should be found on\n\
1766 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1767 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1770 if (! (PL_dowarn & G_WARN_ALL_MASK))
1771 PL_dowarn |= G_WARN_ON;
1775 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1776 PL_compiling.cop_warnings = WARN_ALL ;
1780 PL_dowarn = G_WARN_ALL_OFF;
1781 PL_compiling.cop_warnings = WARN_NONE ;
1786 if (s[1] == '-') /* Additional switches on #! line. */
1791 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1797 #ifdef ALTERNATE_SHEBANG
1798 case 'S': /* OS/2 needs -S on "extproc" line. */
1806 croak("Can't emulate -%.1s on #! line",s);
1811 /* compliments of Tom Christiansen */
1813 /* unexec() can be found in the Gnu emacs distribution */
1814 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1825 prog = newSVpv(BIN_EXP, 0);
1826 sv_catpv(prog, "/perl");
1827 file = newSVpv(PL_origfilename, 0);
1828 sv_catpv(file, ".perldump");
1830 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1831 /* unexec prints msg to stderr in case of failure */
1832 PerlProc_exit(status);
1835 # include <lib$routines.h>
1836 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1838 ABORT(); /* for use with undump */
1843 /* initialize curinterp */
1848 #ifdef PERL_OBJECT /* XXX kludge */
1851 PL_chopset = " \n-"; \
1852 PL_copline = NOLINE; \
1853 PL_curcop = &PL_compiling;\
1854 PL_curcopdb = NULL; \
1857 PL_dumpindent = 4; \
1858 PL_laststatval = -1; \
1859 PL_laststype = OP_STAT; \
1860 PL_maxscream = -1; \
1861 PL_maxsysfd = MAXSYSFD; \
1862 PL_statname = Nullsv; \
1863 PL_tmps_floor = -1; \
1865 PL_op_mask = NULL; \
1867 PL_laststatval = -1; \
1868 PL_laststype = OP_STAT; \
1869 PL_mess_sv = Nullsv; \
1870 PL_splitstr = " "; \
1871 PL_generation = 100; \
1872 PL_exitlist = NULL; \
1873 PL_exitlistlen = 0; \
1875 PL_in_clean_objs = FALSE; \
1876 PL_in_clean_all = FALSE; \
1877 PL_profiledata = NULL; \
1879 PL_rsfp_filters = Nullav; \
1884 # ifdef MULTIPLICITY
1885 # define PERLVAR(var,type)
1886 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1887 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1888 # include "intrpvar.h"
1889 # ifndef USE_THREADS
1890 # include "thrdvar.h"
1896 # define PERLVAR(var,type)
1897 # define PERLVARI(var,type,init) PL_##var = init;
1898 # define PERLVARIC(var,type,init) PL_##var = init;
1899 # include "intrpvar.h"
1900 # ifndef USE_THREADS
1901 # include "thrdvar.h"
1912 init_main_stash(void)
1917 /* Note that strtab is a rather special HV. Assumptions are made
1918 about not iterating on it, and not adding tie magic to it.
1919 It is properly deallocated in perl_destruct() */
1920 PL_strtab = newHV();
1922 MUTEX_INIT(&PL_strtab_mutex);
1924 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1925 hv_ksplit(PL_strtab, 512);
1927 PL_curstash = PL_defstash = newHV();
1928 PL_curstname = newSVpv("main",4);
1929 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1930 SvREFCNT_dec(GvHV(gv));
1931 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1933 HvNAME(PL_defstash) = savepv("main");
1934 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1935 GvMULTI_on(PL_incgv);
1936 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1937 GvMULTI_on(PL_hintgv);
1938 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1939 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1940 GvMULTI_on(PL_errgv);
1941 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1942 GvMULTI_on(PL_replgv);
1943 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1944 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1945 sv_setpvn(ERRSV, "", 0);
1946 PL_curstash = PL_defstash;
1947 PL_compiling.cop_stash = PL_defstash;
1948 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1949 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1950 /* We must init $/ before switches are processed. */
1951 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1955 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1963 PL_origfilename = savepv("-e");
1966 /* if find_script() returns, it returns a malloc()-ed value */
1967 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1969 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1970 char *s = scriptname + 8;
1971 *fdscript = atoi(s);
1975 scriptname = savepv(s + 1);
1976 Safefree(PL_origfilename);
1977 PL_origfilename = scriptname;
1982 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1983 if (strEQ(PL_origfilename,"-"))
1985 if (*fdscript >= 0) {
1986 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1987 #if defined(HAS_FCNTL) && defined(F_SETFD)
1989 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1992 else if (PL_preprocess) {
1993 char *cpp_cfg = CPPSTDIN;
1994 SV *cpp = newSVpv("",0);
1995 SV *cmd = NEWSV(0,0);
1997 if (strEQ(cpp_cfg, "cppstdin"))
1998 sv_catpvf(cpp, "%s/", BIN_EXP);
1999 sv_catpv(cpp, cpp_cfg);
2002 sv_catpv(sv,PRIVLIB_EXP);
2006 sed %s -e \"/^[^#]/b\" \
2007 -e \"/^#[ ]*include[ ]/b\" \
2008 -e \"/^#[ ]*define[ ]/b\" \
2009 -e \"/^#[ ]*if[ ]/b\" \
2010 -e \"/^#[ ]*ifdef[ ]/b\" \
2011 -e \"/^#[ ]*ifndef[ ]/b\" \
2012 -e \"/^#[ ]*else/b\" \
2013 -e \"/^#[ ]*elif[ ]/b\" \
2014 -e \"/^#[ ]*undef[ ]/b\" \
2015 -e \"/^#[ ]*endif/b\" \
2018 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2022 %s %s -e '/^[^#]/b' \
2023 -e '/^#[ ]*include[ ]/b' \
2024 -e '/^#[ ]*define[ ]/b' \
2025 -e '/^#[ ]*if[ ]/b' \
2026 -e '/^#[ ]*ifdef[ ]/b' \
2027 -e '/^#[ ]*ifndef[ ]/b' \
2028 -e '/^#[ ]*else/b' \
2029 -e '/^#[ ]*elif[ ]/b' \
2030 -e '/^#[ ]*undef[ ]/b' \
2031 -e '/^#[ ]*endif/b' \
2036 %s %s -e '/^[^#]/b' \
2037 -e '/^#[ ]*include[ ]/b' \
2038 -e '/^#[ ]*define[ ]/b' \
2039 -e '/^#[ ]*if[ ]/b' \
2040 -e '/^#[ ]*ifdef[ ]/b' \
2041 -e '/^#[ ]*ifndef[ ]/b' \
2042 -e '/^#[ ]*else/b' \
2043 -e '/^#[ ]*elif[ ]/b' \
2044 -e '/^#[ ]*undef[ ]/b' \
2045 -e '/^#[ ]*endif/b' \
2054 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2056 scriptname, cpp, sv, CPPMINUS);
2057 PL_doextract = FALSE;
2058 #ifdef IAMSUID /* actually, this is caught earlier */
2059 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2061 (void)seteuid(PL_uid); /* musn't stay setuid root */
2064 (void)setreuid((Uid_t)-1, PL_uid);
2066 #ifdef HAS_SETRESUID
2067 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2069 PerlProc_setuid(PL_uid);
2073 if (PerlProc_geteuid() != PL_uid)
2074 croak("Can't do seteuid!\n");
2076 #endif /* IAMSUID */
2077 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2081 else if (!*scriptname) {
2082 forbid_setid("program input from stdin");
2083 PL_rsfp = PerlIO_stdin();
2086 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2087 #if defined(HAS_FCNTL) && defined(F_SETFD)
2089 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2094 #ifndef IAMSUID /* in case script is not readable before setuid */
2096 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2097 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2100 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2101 croak("Can't do setuid\n");
2105 croak("Can't open perl script \"%s\": %s\n",
2106 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2111 validate_suid(char *validarg, char *scriptname, int fdscript)
2115 /* do we need to emulate setuid on scripts? */
2117 /* This code is for those BSD systems that have setuid #! scripts disabled
2118 * in the kernel because of a security problem. Merely defining DOSUID
2119 * in perl will not fix that problem, but if you have disabled setuid
2120 * scripts in the kernel, this will attempt to emulate setuid and setgid
2121 * on scripts that have those now-otherwise-useless bits set. The setuid
2122 * root version must be called suidperl or sperlN.NNN. If regular perl
2123 * discovers that it has opened a setuid script, it calls suidperl with
2124 * the same argv that it had. If suidperl finds that the script it has
2125 * just opened is NOT setuid root, it sets the effective uid back to the
2126 * uid. We don't just make perl setuid root because that loses the
2127 * effective uid we had before invoking perl, if it was different from the
2130 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2131 * be defined in suidperl only. suidperl must be setuid root. The
2132 * Configure script will set this up for you if you want it.
2139 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2140 croak("Can't stat script \"%s\"",PL_origfilename);
2141 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2146 #ifndef HAS_SETREUID
2147 /* On this access check to make sure the directories are readable,
2148 * there is actually a small window that the user could use to make
2149 * filename point to an accessible directory. So there is a faint
2150 * chance that someone could execute a setuid script down in a
2151 * non-accessible directory. I don't know what to do about that.
2152 * But I don't think it's too important. The manual lies when
2153 * it says access() is useful in setuid programs.
2155 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2156 croak("Permission denied");
2158 /* If we can swap euid and uid, then we can determine access rights
2159 * with a simple stat of the file, and then compare device and
2160 * inode to make sure we did stat() on the same file we opened.
2161 * Then we just have to make sure he or she can execute it.
2164 struct stat tmpstatbuf;
2168 setreuid(PL_euid,PL_uid) < 0
2171 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2174 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2175 croak("Can't swap uid and euid"); /* really paranoid */
2176 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2177 croak("Permission denied"); /* testing full pathname here */
2178 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2179 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2180 (void)PerlIO_close(PL_rsfp);
2181 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2182 PerlIO_printf(PL_rsfp,
2183 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2184 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2185 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2186 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2187 SvPVX(GvSV(PL_curcop->cop_filegv)),
2188 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2189 (void)PerlProc_pclose(PL_rsfp);
2191 croak("Permission denied\n");
2195 setreuid(PL_uid,PL_euid) < 0
2197 # if defined(HAS_SETRESUID)
2198 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2201 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2202 croak("Can't reswap uid and euid");
2203 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2204 croak("Permission denied\n");
2206 #endif /* HAS_SETREUID */
2207 #endif /* IAMSUID */
2209 if (!S_ISREG(PL_statbuf.st_mode))
2210 croak("Permission denied");
2211 if (PL_statbuf.st_mode & S_IWOTH)
2212 croak("Setuid/gid script is writable by world");
2213 PL_doswitches = FALSE; /* -s is insecure in suid */
2214 PL_curcop->cop_line++;
2215 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2216 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
2217 croak("No #! line");
2218 s = SvPV(PL_linestr,n_a)+2;
2220 while (!isSPACE(*s)) s++;
2221 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
2222 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2223 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2224 croak("Not a perl script");
2225 while (*s == ' ' || *s == '\t') s++;
2227 * #! arg must be what we saw above. They can invoke it by
2228 * mentioning suidperl explicitly, but they may not add any strange
2229 * arguments beyond what #! says if they do invoke suidperl that way.
2231 len = strlen(validarg);
2232 if (strEQ(validarg," PHOOEY ") ||
2233 strnNE(s,validarg,len) || !isSPACE(s[len]))
2234 croak("Args must match #! line");
2237 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2238 PL_euid == PL_statbuf.st_uid)
2240 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2241 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2242 #endif /* IAMSUID */
2244 if (PL_euid) { /* oops, we're not the setuid root perl */
2245 (void)PerlIO_close(PL_rsfp);
2248 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2250 croak("Can't do setuid\n");
2253 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2255 (void)setegid(PL_statbuf.st_gid);
2258 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2260 #ifdef HAS_SETRESGID
2261 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2263 PerlProc_setgid(PL_statbuf.st_gid);
2267 if (PerlProc_getegid() != PL_statbuf.st_gid)
2268 croak("Can't do setegid!\n");
2270 if (PL_statbuf.st_mode & S_ISUID) {
2271 if (PL_statbuf.st_uid != PL_euid)
2273 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2276 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2278 #ifdef HAS_SETRESUID
2279 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2281 PerlProc_setuid(PL_statbuf.st_uid);
2285 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2286 croak("Can't do seteuid!\n");
2288 else if (PL_uid) { /* oops, mustn't run as root */
2290 (void)seteuid((Uid_t)PL_uid);
2293 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2295 #ifdef HAS_SETRESUID
2296 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2298 PerlProc_setuid((Uid_t)PL_uid);
2302 if (PerlProc_geteuid() != PL_uid)
2303 croak("Can't do seteuid!\n");
2306 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2307 croak("Permission denied\n"); /* they can't do this */
2310 else if (PL_preprocess)
2311 croak("-P not allowed for setuid/setgid script\n");
2312 else if (fdscript >= 0)
2313 croak("fd script not allowed in suidperl\n");
2315 croak("Script is not setuid/setgid in suidperl\n");
2317 /* We absolutely must clear out any saved ids here, so we */
2318 /* exec the real perl, substituting fd script for scriptname. */
2319 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2320 PerlIO_rewind(PL_rsfp);
2321 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2322 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2323 if (!PL_origargv[which])
2324 croak("Permission denied");
2325 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2326 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2327 #if defined(HAS_FCNTL) && defined(F_SETFD)
2328 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2330 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2331 croak("Can't do setuid\n");
2332 #endif /* IAMSUID */
2334 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2335 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2337 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2338 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2340 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2343 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2344 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2345 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2346 /* not set-id, must be wrapped */
2352 find_beginning(void)
2354 register char *s, *s2;
2356 /* skip forward in input to the real script? */
2359 while (PL_doextract) {
2360 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2361 croak("No Perl script found in input\n");
2362 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2363 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2364 PL_doextract = FALSE;
2365 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2367 while (*s == ' ' || *s == '\t') s++;
2369 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2370 if (strnEQ(s2-4,"perl",4))
2372 while (s = moreswitches(s)) ;
2374 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2375 croak("Can't chdir to %s",PL_cddir);
2384 PL_uid = (int)PerlProc_getuid();
2385 PL_euid = (int)PerlProc_geteuid();
2386 PL_gid = (int)PerlProc_getgid();
2387 PL_egid = (int)PerlProc_getegid();
2389 PL_uid |= PL_gid << 16;
2390 PL_euid |= PL_egid << 16;
2392 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2396 forbid_setid(char *s)
2398 if (PL_euid != PL_uid)
2399 croak("No %s allowed while running setuid", s);
2400 if (PL_egid != PL_gid)
2401 croak("No %s allowed while running setgid", s);
2408 PL_curstash = PL_debstash;
2409 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2410 AvREAL_off(PL_dbargs);
2411 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2412 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2413 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2414 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2415 sv_setiv(PL_DBsingle, 0);
2416 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2417 sv_setiv(PL_DBtrace, 0);
2418 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2419 sv_setiv(PL_DBsignal, 0);
2420 PL_curstash = PL_defstash;
2423 #ifndef STRESS_REALLOC
2424 #define REASONABLE(size) (size)
2426 #define REASONABLE(size) (1) /* unreasonable */
2430 init_stacks(ARGSproto)
2432 /* start with 128-item stack and 8K cxstack */
2433 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2434 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2435 PL_curstackinfo->si_type = PERLSI_MAIN;
2436 PL_curstack = PL_curstackinfo->si_stack;
2437 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2439 PL_stack_base = AvARRAY(PL_curstack);
2440 PL_stack_sp = PL_stack_base;
2441 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2443 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2446 PL_tmps_max = REASONABLE(128);
2448 New(54,PL_markstack,REASONABLE(32),I32);
2449 PL_markstack_ptr = PL_markstack;
2450 PL_markstack_max = PL_markstack + REASONABLE(32);
2454 New(54,PL_scopestack,REASONABLE(32),I32);
2455 PL_scopestack_ix = 0;
2456 PL_scopestack_max = REASONABLE(32);
2458 New(54,PL_savestack,REASONABLE(128),ANY);
2459 PL_savestack_ix = 0;
2460 PL_savestack_max = REASONABLE(128);
2462 New(54,PL_retstack,REASONABLE(16),OP*);
2464 PL_retstack_max = REASONABLE(16);
2473 while (PL_curstackinfo->si_next)
2474 PL_curstackinfo = PL_curstackinfo->si_next;
2475 while (PL_curstackinfo) {
2476 PERL_SI *p = PL_curstackinfo->si_prev;
2477 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2478 Safefree(PL_curstackinfo->si_cxstack);
2479 Safefree(PL_curstackinfo);
2480 PL_curstackinfo = p;
2482 Safefree(PL_tmps_stack);
2483 Safefree(PL_markstack);
2484 Safefree(PL_scopestack);
2485 Safefree(PL_savestack);
2486 Safefree(PL_retstack);
2488 Safefree(PL_debname);
2489 Safefree(PL_debdelim);
2494 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2505 lex_start(PL_linestr);
2507 PL_subname = newSVpv("main",4);
2511 init_predump_symbols(void)
2517 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2518 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2519 GvMULTI_on(PL_stdingv);
2520 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2521 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2523 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2525 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2527 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2529 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2531 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2533 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2534 GvMULTI_on(othergv);
2535 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2536 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2538 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2540 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2543 PL_osname = savepv(OSNAME);
2547 init_postdump_symbols(register int argc, register char **argv, register char **env)
2554 argc--,argv++; /* skip name of script */
2555 if (PL_doswitches) {
2556 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2559 if (argv[0][1] == '-') {
2563 if (s = strchr(argv[0], '=')) {
2565 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2568 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2571 PL_toptarget = NEWSV(0,0);
2572 sv_upgrade(PL_toptarget, SVt_PVFM);
2573 sv_setpvn(PL_toptarget, "", 0);
2574 PL_bodytarget = NEWSV(0,0);
2575 sv_upgrade(PL_bodytarget, SVt_PVFM);
2576 sv_setpvn(PL_bodytarget, "", 0);
2577 PL_formtarget = PL_bodytarget;
2580 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2581 sv_setpv(GvSV(tmpgv),PL_origfilename);
2582 magicname("0", "0", 1);
2584 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2585 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2586 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2587 GvMULTI_on(PL_argvgv);
2588 (void)gv_AVadd(PL_argvgv);
2589 av_clear(GvAVn(PL_argvgv));
2590 for (; argc > 0; argc--,argv++) {
2591 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2594 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2596 GvMULTI_on(PL_envgv);
2597 hv = GvHVn(PL_envgv);
2598 hv_magic(hv, PL_envgv, 'E');
2599 #ifndef VMS /* VMS doesn't have environ array */
2600 /* Note that if the supplied env parameter is actually a copy
2601 of the global environ then it may now point to free'd memory
2602 if the environment has been modified since. To avoid this
2603 problem we treat env==NULL as meaning 'use the default'
2608 environ[0] = Nullch;
2609 for (; *env; env++) {
2610 if (!(s = strchr(*env,'=')))
2616 sv = newSVpv(s--,0);
2617 (void)hv_store(hv, *env, s - *env, sv, 0);
2619 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2620 /* Sins of the RTL. See note in my_setenv(). */
2621 (void)PerlEnv_putenv(savepv(*env));
2625 #ifdef DYNAMIC_ENV_FETCH
2626 HvNAME(hv) = savepv(ENV_HV_NAME);
2630 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2631 sv_setiv(GvSV(tmpgv), (IV)getpid());
2640 s = PerlEnv_getenv("PERL5LIB");
2644 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2646 /* Treat PERL5?LIB as a possible search list logical name -- the
2647 * "natural" VMS idiom for a Unix path string. We allow each
2648 * element to be a set of |-separated directories for compatibility.
2652 if (my_trnlnm("PERL5LIB",buf,0))
2653 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2655 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2659 /* Use the ~-expanded versions of APPLLIB (undocumented),
2660 ARCHLIB PRIVLIB SITEARCH and SITELIB
2663 incpush(APPLLIB_EXP, TRUE);
2667 incpush(ARCHLIB_EXP, FALSE);
2670 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2673 incpush(PRIVLIB_EXP, TRUE);
2675 incpush(PRIVLIB_EXP, FALSE);
2679 incpush(SITEARCH_EXP, FALSE);
2683 incpush(SITELIB_EXP, TRUE);
2685 incpush(SITELIB_EXP, FALSE);
2689 incpush(".", FALSE);
2693 # define PERLLIB_SEP ';'
2696 # define PERLLIB_SEP '|'
2698 # define PERLLIB_SEP ':'
2701 #ifndef PERLLIB_MANGLE
2702 # define PERLLIB_MANGLE(s,n) (s)
2706 incpush(char *p, int addsubdirs)
2708 SV *subdir = Nullsv;
2714 subdir = sv_newmortal();
2715 if (!PL_archpat_auto) {
2716 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2717 + sizeof("//auto"));
2718 New(55, PL_archpat_auto, len, char);
2719 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2721 for (len = sizeof(ARCHNAME) + 2;
2722 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2723 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2728 /* Break at all separators */
2730 SV *libdir = NEWSV(55,0);
2733 /* skip any consecutive separators */
2734 while ( *p == PERLLIB_SEP ) {
2735 /* Uncomment the next line for PATH semantics */
2736 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2740 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2741 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2746 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2747 p = Nullch; /* break out */
2751 * BEFORE pushing libdir onto @INC we may first push version- and
2752 * archname-specific sub-directories.
2755 struct stat tmpstatbuf;
2760 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
2762 while (unix[len-1] == '/') len--; /* Cosmetic */
2763 sv_usepvn(libdir,unix,len);
2766 PerlIO_printf(PerlIO_stderr(),
2767 "Failed to unixify @INC element \"%s\"\n",
2770 /* .../archname/version if -d .../archname/version/auto */
2771 sv_setsv(subdir, libdir);
2772 sv_catpv(subdir, PL_archpat_auto);
2773 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2774 S_ISDIR(tmpstatbuf.st_mode))
2775 av_push(GvAVn(PL_incgv),
2776 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2778 /* .../archname if -d .../archname/auto */
2779 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2780 strlen(PL_patchlevel) + 1, "", 0);
2781 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2782 S_ISDIR(tmpstatbuf.st_mode))
2783 av_push(GvAVn(PL_incgv),
2784 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2787 /* finally push this lib directory on the end of @INC */
2788 av_push(GvAVn(PL_incgv), libdir);
2793 STATIC struct perl_thread *
2796 struct perl_thread *thr;
2799 Newz(53, thr, 1, struct perl_thread);
2800 PL_curcop = &PL_compiling;
2801 thr->cvcache = newHV();
2802 thr->threadsv = newAV();
2803 /* thr->threadsvp is set when find_threadsv is called */
2804 thr->specific = newAV();
2805 thr->errhv = newHV();
2806 thr->flags = THRf_R_JOINABLE;
2807 MUTEX_INIT(&thr->mutex);
2808 /* Handcraft thrsv similarly to mess_sv */
2809 New(53, PL_thrsv, 1, SV);
2810 Newz(53, xpv, 1, XPV);
2811 SvFLAGS(PL_thrsv) = SVt_PV;
2812 SvANY(PL_thrsv) = (void*)xpv;
2813 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2814 SvPVX(PL_thrsv) = (char*)thr;
2815 SvCUR_set(PL_thrsv, sizeof(thr));
2816 SvLEN_set(PL_thrsv, sizeof(thr));
2817 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2818 thr->oursv = PL_thrsv;
2819 PL_chopset = " \n-";
2822 MUTEX_LOCK(&PL_threads_mutex);
2827 MUTEX_UNLOCK(&PL_threads_mutex);
2829 #ifdef HAVE_THREAD_INTERN
2830 init_thread_intern(thr);
2833 #ifdef SET_THREAD_SELF
2834 SET_THREAD_SELF(thr);
2836 thr->self = pthread_self();
2837 #endif /* SET_THREAD_SELF */
2841 * These must come after the SET_THR because sv_setpvn does
2842 * SvTAINT and the taint fields require dTHR.
2844 PL_toptarget = NEWSV(0,0);
2845 sv_upgrade(PL_toptarget, SVt_PVFM);
2846 sv_setpvn(PL_toptarget, "", 0);
2847 PL_bodytarget = NEWSV(0,0);
2848 sv_upgrade(PL_bodytarget, SVt_PVFM);
2849 sv_setpvn(PL_bodytarget, "", 0);
2850 PL_formtarget = PL_bodytarget;
2851 thr->errsv = newSVpv("", 0);
2852 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2855 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2856 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2858 PL_reginterp_cnt = 0;
2862 #endif /* USE_THREADS */
2865 call_list(I32 oldscope, AV *paramList)
2868 line_t oldline = PL_curcop->cop_line;
2873 while (AvFILL(paramList) >= 0) {
2874 CV *cv = (CV*)av_shift(paramList);
2882 PUSHMARK(PL_stack_sp);
2883 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2884 (void)SvPV(atsv, len);
2887 PL_curcop = &PL_compiling;
2888 PL_curcop->cop_line = oldline;
2889 if (paramList == PL_beginav)
2890 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2892 sv_catpv(atsv, "END failed--cleanup aborted");
2893 while (PL_scopestack_ix > oldscope)
2895 croak("%s", SvPVX(atsv));
2903 /* my_exit() was called */
2904 while (PL_scopestack_ix > oldscope)
2907 PL_curstash = PL_defstash;
2909 call_list(oldscope, PL_endav);
2911 PL_curcop = &PL_compiling;
2912 PL_curcop->cop_line = oldline;
2913 if (PL_statusvalue) {
2914 if (paramList == PL_beginav)
2915 croak("BEGIN failed--compilation aborted");
2917 croak("END failed--cleanup aborted");
2922 if (!PL_restartop) {
2923 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2928 PL_curcop = &PL_compiling;
2929 PL_curcop->cop_line = oldline;
2941 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2942 thr, (unsigned long) status));
2951 STATUS_NATIVE_SET(status);
2958 my_failure_exit(void)
2961 if (vaxc$errno & 1) {
2962 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2963 STATUS_NATIVE_SET(44);
2966 if (!vaxc$errno && errno) /* unlikely */
2967 STATUS_NATIVE_SET(44);
2969 STATUS_NATIVE_SET(vaxc$errno);
2974 STATUS_POSIX_SET(errno);
2976 exitstatus = STATUS_POSIX >> 8;
2977 if (exitstatus & 255)
2978 STATUS_POSIX_SET(exitstatus);
2980 STATUS_POSIX_SET(255);
2990 register PERL_CONTEXT *cx;
2995 SvREFCNT_dec(PL_e_script);
2996 PL_e_script = Nullsv;
2999 POPSTACK_TO(PL_mainstack);
3000 if (cxstack_ix >= 0) {
3003 POPBLOCK(cx,PL_curpm);
3012 #endif /* PERL_OBJECT */
3018 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3020 read_e_script(int idx, SV *buf_sv, int maxlen)
3024 p = SvPVX(PL_e_script);
3025 nl = strchr(p, '\n');
3026 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3028 filter_del(read_e_script);
3031 sv_catpvn(buf_sv, p, nl-p);
3032 sv_chop(PL_e_script, nl);