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 if (create && !GvCVu(gv))
1149 return newSUB(start_subparse(FALSE, 0),
1150 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1158 /* Be sure to refetch the stack pointer after calling these routines. */
1161 perl_call_argv(char *sub_name, I32 flags, register char **argv)
1163 /* See G_* flags in cop.h */
1164 /* null terminated arg list */
1171 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1176 return perl_call_pv(sub_name, flags);
1180 perl_call_pv(char *sub_name, I32 flags)
1181 /* name of the subroutine */
1182 /* See G_* flags in cop.h */
1184 return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
1188 perl_call_method(char *methname, I32 flags)
1189 /* name of the subroutine */
1190 /* See G_* flags in cop.h */
1196 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1201 return perl_call_sv(*PL_stack_sp--, flags);
1204 /* May be called with any of a CV, a GV, or an SV containing the name. */
1206 perl_call_sv(SV *sv, I32 flags)
1208 /* See G_* flags in cop.h */
1211 LOGOP myop; /* fake syntax tree node */
1215 bool oldcatch = CATCH_GET;
1220 if (flags & G_DISCARD) {
1225 Zero(&myop, 1, LOGOP);
1226 myop.op_next = Nullop;
1227 if (!(flags & G_NOARGS))
1228 myop.op_flags |= OPf_STACKED;
1229 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1230 (flags & G_ARRAY) ? OPf_WANT_LIST :
1235 EXTEND(PL_stack_sp, 1);
1236 *++PL_stack_sp = sv;
1238 oldscope = PL_scopestack_ix;
1240 if (PERLDB_SUB && PL_curstash != PL_debstash
1241 /* Handle first BEGIN of -d. */
1242 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1243 /* Try harder, since this may have been a sighandler, thus
1244 * curstash may be meaningless. */
1245 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1246 && !(flags & G_NODEBUG))
1247 PL_op->op_private |= OPpENTERSUB_DB;
1249 if (flags & G_EVAL) {
1250 cLOGOP->op_other = PL_op;
1252 /* we're trying to emulate pp_entertry() here */
1254 register PERL_CONTEXT *cx;
1255 I32 gimme = GIMME_V;
1260 push_return(PL_op->op_next);
1261 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1263 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1266 if (flags & G_KEEPERR)
1281 /* my_exit() was called */
1282 PL_curstash = PL_defstash;
1286 croak("Callback called exit");
1291 PL_op = PL_restartop;
1295 PL_stack_sp = PL_stack_base + oldmark;
1296 if (flags & G_ARRAY)
1300 *++PL_stack_sp = &PL_sv_undef;
1308 if (PL_op == (OP*)&myop)
1309 PL_op = pp_entersub(ARGS);
1312 retval = PL_stack_sp - (PL_stack_base + oldmark);
1313 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1317 if (flags & G_EVAL) {
1318 if (PL_scopestack_ix > oldscope) {
1322 register PERL_CONTEXT *cx;
1334 CATCH_SET(oldcatch);
1336 if (flags & G_DISCARD) {
1337 PL_stack_sp = PL_stack_base + oldmark;
1346 /* Eval a string. The G_EVAL flag is always assumed. */
1349 perl_eval_sv(SV *sv, I32 flags)
1351 /* See G_* flags in cop.h */
1354 UNOP myop; /* fake syntax tree node */
1355 I32 oldmark = SP - PL_stack_base;
1362 if (flags & G_DISCARD) {
1369 Zero(PL_op, 1, UNOP);
1370 EXTEND(PL_stack_sp, 1);
1371 *++PL_stack_sp = sv;
1372 oldscope = PL_scopestack_ix;
1374 if (!(flags & G_NOARGS))
1375 myop.op_flags = OPf_STACKED;
1376 myop.op_next = Nullop;
1377 myop.op_type = OP_ENTEREVAL;
1378 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1379 (flags & G_ARRAY) ? OPf_WANT_LIST :
1381 if (flags & G_KEEPERR)
1382 myop.op_flags |= OPf_SPECIAL;
1392 /* my_exit() was called */
1393 PL_curstash = PL_defstash;
1397 croak("Callback called exit");
1402 PL_op = PL_restartop;
1406 PL_stack_sp = PL_stack_base + oldmark;
1407 if (flags & G_ARRAY)
1411 *++PL_stack_sp = &PL_sv_undef;
1416 if (PL_op == (OP*)&myop)
1417 PL_op = pp_entereval(ARGS);
1420 retval = PL_stack_sp - (PL_stack_base + oldmark);
1421 if (!(flags & G_KEEPERR))
1426 if (flags & G_DISCARD) {
1427 PL_stack_sp = PL_stack_base + oldmark;
1437 perl_eval_pv(char *p, I32 croak_on_error)
1440 SV* sv = newSVpv(p, 0);
1443 perl_eval_sv(sv, G_SCALAR);
1450 if (croak_on_error && SvTRUE(ERRSV))
1451 croak(SvPVx(ERRSV, PL_na));
1456 /* Require a module. */
1459 perl_require_pv(char *pv)
1463 PUSHSTACKi(PERLSI_REQUIRE);
1465 sv = sv_newmortal();
1466 sv_setpv(sv, "require '");
1469 perl_eval_sv(sv, G_DISCARD);
1475 magicname(char *sym, char *name, I32 namlen)
1479 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1480 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1484 usage(char *name) /* XXX move this out into a module ? */
1487 /* This message really ought to be max 23 lines.
1488 * Removed -h because the user already knows that opton. Others? */
1490 static char *usage_msg[] = {
1491 "-0[octal] specify record separator (\\0, if no argument)",
1492 "-a autosplit mode with -n or -p (splits $_ into @F)",
1493 "-c check syntax only (runs BEGIN and END blocks)",
1494 "-d[:debugger] run scripts under debugger",
1495 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1496 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1497 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1498 "-i[extension] edit <> files in place (make backup if extension supplied)",
1499 "-Idirectory specify @INC/#include directory (may be used more than once)",
1500 "-l[octal] enable line ending processing, specifies line terminator",
1501 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1502 "-n assume 'while (<>) { ... }' loop around your script",
1503 "-p assume loop like -n but print line also like sed",
1504 "-P run script through C preprocessor before compilation",
1505 "-s enable some switch parsing for switches after script name",
1506 "-S look for the script using PATH environment variable",
1507 "-T turn on tainting checks",
1508 "-u dump core after parsing script",
1509 "-U allow unsafe operations",
1510 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1511 "-V[:variable] print perl configuration information",
1512 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1513 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1517 char **p = usage_msg;
1519 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1521 printf("\n %s", *p++);
1524 /* This routine handles any switches that can be given during run */
1527 moreswitches(char *s)
1536 rschar = scan_oct(s, 4, &numlen);
1537 SvREFCNT_dec(PL_nrs);
1538 if (rschar & ~((U8)~0))
1539 PL_nrs = &PL_sv_undef;
1540 else if (!rschar && numlen >= 2)
1541 PL_nrs = newSVpv("", 0);
1544 PL_nrs = newSVpv(&ch, 1);
1550 PL_splitstr = savepv(s + 1);
1564 if (*s == ':' || *s == '=') {
1565 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1569 PL_perldb = PERLDB_ALL;
1576 if (isALPHA(s[1])) {
1577 static char debopts[] = "psltocPmfrxuLHXDS";
1580 for (s++; *s && (d = strchr(debopts,*s)); s++)
1581 PL_debug |= 1 << (d - debopts);
1584 PL_debug = atoi(s+1);
1585 for (s++; isDIGIT(*s); s++) ;
1587 PL_debug |= 0x80000000;
1589 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1590 for (s++; isALNUM(*s); s++) ;
1595 usage(PL_origargv[0]);
1599 Safefree(PL_inplace);
1600 PL_inplace = savepv(s+1);
1602 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1605 if (*s == '-') /* Additional switches on #! line. */
1609 case 'I': /* -I handled both here and in parse_perl() */
1612 while (*s && isSPACE(*s))
1616 for (e = s; *e && !isSPACE(*e); e++) ;
1617 p = savepvn(s, e-s);
1623 croak("No space allowed after -I");
1631 PL_ors = savepv("\n");
1633 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1638 if (RsPARA(PL_nrs)) {
1643 PL_ors = SvPV(PL_nrs, PL_orslen);
1644 PL_ors = savepvn(PL_ors, PL_orslen);
1648 forbid_setid("-M"); /* XXX ? */
1651 forbid_setid("-m"); /* XXX ? */
1656 /* -M-foo == 'no foo' */
1657 if (*s == '-') { use = "no "; ++s; }
1658 sv = newSVpv(use,0);
1660 /* We allow -M'Module qw(Foo Bar)' */
1661 while(isALNUM(*s) || *s==':') ++s;
1663 sv_catpv(sv, start);
1664 if (*(start-1) == 'm') {
1666 croak("Can't use '%c' after -mname", *s);
1667 sv_catpv( sv, " ()");
1670 sv_catpvn(sv, start, s-start);
1671 sv_catpv(sv, " split(/,/,q{");
1676 if (PL_preambleav == NULL)
1677 PL_preambleav = newAV();
1678 av_push(PL_preambleav, sv);
1681 croak("No space allowed after -%c", *(s-1));
1693 PL_doswitches = TRUE;
1698 croak("Too late for \"-T\" option");
1702 PL_do_undump = TRUE;
1710 #if defined(SUBVERSION) && SUBVERSION > 0
1711 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1712 PATCHLEVEL, SUBVERSION, ARCHNAME);
1714 printf("\nThis is perl, version %s built for %s",
1715 PL_patchlevel, ARCHNAME);
1717 #if defined(LOCAL_PATCH_COUNT)
1718 if (LOCAL_PATCH_COUNT > 0)
1719 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1720 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1723 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1725 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1728 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1729 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1732 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1733 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1736 printf("atariST series port, ++jrb bammi@cadence.com\n");
1739 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1742 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1745 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
1748 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n");
1751 printf("VM/ESA port by Neale Ferguson, 1998\n");
1754 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n");
1756 #ifdef BINARY_BUILD_NOTICE
1757 BINARY_BUILD_NOTICE;
1760 Perl may be copied only under the terms of either the Artistic License or the\n\
1761 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1762 Complete documentation for Perl, including FAQ lists, should be found on\n\
1763 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1764 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1767 if (! (PL_dowarn & G_WARN_ALL_MASK))
1768 PL_dowarn |= G_WARN_ON;
1772 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1773 PL_compiling.cop_warnings = WARN_ALL ;
1777 PL_dowarn = G_WARN_ALL_OFF;
1778 PL_compiling.cop_warnings = WARN_NONE ;
1783 if (s[1] == '-') /* Additional switches on #! line. */
1788 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1794 #ifdef ALTERNATE_SHEBANG
1795 case 'S': /* OS/2 needs -S on "extproc" line. */
1803 croak("Can't emulate -%.1s on #! line",s);
1808 /* compliments of Tom Christiansen */
1810 /* unexec() can be found in the Gnu emacs distribution */
1811 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1822 prog = newSVpv(BIN_EXP, 0);
1823 sv_catpv(prog, "/perl");
1824 file = newSVpv(PL_origfilename, 0);
1825 sv_catpv(file, ".perldump");
1827 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1828 /* unexec prints msg to stderr in case of failure */
1829 PerlProc_exit(status);
1832 # include <lib$routines.h>
1833 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1835 ABORT(); /* for use with undump */
1840 /* initialize curinterp */
1845 #ifdef PERL_OBJECT /* XXX kludge */
1848 PL_chopset = " \n-"; \
1849 PL_copline = NOLINE; \
1850 PL_curcop = &PL_compiling;\
1851 PL_curcopdb = NULL; \
1854 PL_dumpindent = 4; \
1855 PL_laststatval = -1; \
1856 PL_laststype = OP_STAT; \
1857 PL_maxscream = -1; \
1858 PL_maxsysfd = MAXSYSFD; \
1859 PL_statname = Nullsv; \
1860 PL_tmps_floor = -1; \
1862 PL_op_mask = NULL; \
1864 PL_laststatval = -1; \
1865 PL_laststype = OP_STAT; \
1866 PL_mess_sv = Nullsv; \
1867 PL_splitstr = " "; \
1868 PL_generation = 100; \
1869 PL_exitlist = NULL; \
1870 PL_exitlistlen = 0; \
1872 PL_in_clean_objs = FALSE; \
1873 PL_in_clean_all = FALSE; \
1874 PL_profiledata = NULL; \
1876 PL_rsfp_filters = Nullav; \
1881 # ifdef MULTIPLICITY
1882 # define PERLVAR(var,type)
1883 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1884 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1885 # include "intrpvar.h"
1886 # ifndef USE_THREADS
1887 # include "thrdvar.h"
1893 # define PERLVAR(var,type)
1894 # define PERLVARI(var,type,init) PL_##var = init;
1895 # define PERLVARIC(var,type,init) PL_##var = init;
1896 # include "intrpvar.h"
1897 # ifndef USE_THREADS
1898 # include "thrdvar.h"
1909 init_main_stash(void)
1914 /* Note that strtab is a rather special HV. Assumptions are made
1915 about not iterating on it, and not adding tie magic to it.
1916 It is properly deallocated in perl_destruct() */
1917 PL_strtab = newHV();
1919 MUTEX_INIT(&PL_strtab_mutex);
1921 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1922 hv_ksplit(PL_strtab, 512);
1924 PL_curstash = PL_defstash = newHV();
1925 PL_curstname = newSVpv("main",4);
1926 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1927 SvREFCNT_dec(GvHV(gv));
1928 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1930 HvNAME(PL_defstash) = savepv("main");
1931 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1932 GvMULTI_on(PL_incgv);
1933 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1934 GvMULTI_on(PL_hintgv);
1935 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1936 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1937 GvMULTI_on(PL_errgv);
1938 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1939 GvMULTI_on(PL_replgv);
1940 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1941 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1942 sv_setpvn(ERRSV, "", 0);
1943 PL_curstash = PL_defstash;
1944 PL_compiling.cop_stash = PL_defstash;
1945 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1946 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1947 /* We must init $/ before switches are processed. */
1948 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1952 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1960 PL_origfilename = savepv("-e");
1963 /* if find_script() returns, it returns a malloc()-ed value */
1964 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1966 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1967 char *s = scriptname + 8;
1968 *fdscript = atoi(s);
1972 scriptname = savepv(s + 1);
1973 Safefree(PL_origfilename);
1974 PL_origfilename = scriptname;
1979 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1980 if (strEQ(PL_origfilename,"-"))
1982 if (*fdscript >= 0) {
1983 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1984 #if defined(HAS_FCNTL) && defined(F_SETFD)
1986 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1989 else if (PL_preprocess) {
1990 char *cpp_cfg = CPPSTDIN;
1991 SV *cpp = newSVpv("",0);
1992 SV *cmd = NEWSV(0,0);
1994 if (strEQ(cpp_cfg, "cppstdin"))
1995 sv_catpvf(cpp, "%s/", BIN_EXP);
1996 sv_catpv(cpp, cpp_cfg);
1999 sv_catpv(sv,PRIVLIB_EXP);
2003 sed %s -e \"/^[^#]/b\" \
2004 -e \"/^#[ ]*include[ ]/b\" \
2005 -e \"/^#[ ]*define[ ]/b\" \
2006 -e \"/^#[ ]*if[ ]/b\" \
2007 -e \"/^#[ ]*ifdef[ ]/b\" \
2008 -e \"/^#[ ]*ifndef[ ]/b\" \
2009 -e \"/^#[ ]*else/b\" \
2010 -e \"/^#[ ]*elif[ ]/b\" \
2011 -e \"/^#[ ]*undef[ ]/b\" \
2012 -e \"/^#[ ]*endif/b\" \
2015 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2019 %s %s -e '/^[^#]/b' \
2020 -e '/^#[ ]*include[ ]/b' \
2021 -e '/^#[ ]*define[ ]/b' \
2022 -e '/^#[ ]*if[ ]/b' \
2023 -e '/^#[ ]*ifdef[ ]/b' \
2024 -e '/^#[ ]*ifndef[ ]/b' \
2025 -e '/^#[ ]*else/b' \
2026 -e '/^#[ ]*elif[ ]/b' \
2027 -e '/^#[ ]*undef[ ]/b' \
2028 -e '/^#[ ]*endif/b' \
2033 %s %s -e '/^[^#]/b' \
2034 -e '/^#[ ]*include[ ]/b' \
2035 -e '/^#[ ]*define[ ]/b' \
2036 -e '/^#[ ]*if[ ]/b' \
2037 -e '/^#[ ]*ifdef[ ]/b' \
2038 -e '/^#[ ]*ifndef[ ]/b' \
2039 -e '/^#[ ]*else/b' \
2040 -e '/^#[ ]*elif[ ]/b' \
2041 -e '/^#[ ]*undef[ ]/b' \
2042 -e '/^#[ ]*endif/b' \
2051 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2053 scriptname, cpp, sv, CPPMINUS);
2054 PL_doextract = FALSE;
2055 #ifdef IAMSUID /* actually, this is caught earlier */
2056 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2058 (void)seteuid(PL_uid); /* musn't stay setuid root */
2061 (void)setreuid((Uid_t)-1, PL_uid);
2063 #ifdef HAS_SETRESUID
2064 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2066 PerlProc_setuid(PL_uid);
2070 if (PerlProc_geteuid() != PL_uid)
2071 croak("Can't do seteuid!\n");
2073 #endif /* IAMSUID */
2074 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2078 else if (!*scriptname) {
2079 forbid_setid("program input from stdin");
2080 PL_rsfp = PerlIO_stdin();
2083 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2084 #if defined(HAS_FCNTL) && defined(F_SETFD)
2086 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2091 #ifndef IAMSUID /* in case script is not readable before setuid */
2093 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2094 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2097 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2098 croak("Can't do setuid\n");
2102 croak("Can't open perl script \"%s\": %s\n",
2103 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2108 validate_suid(char *validarg, char *scriptname, int fdscript)
2112 /* do we need to emulate setuid on scripts? */
2114 /* This code is for those BSD systems that have setuid #! scripts disabled
2115 * in the kernel because of a security problem. Merely defining DOSUID
2116 * in perl will not fix that problem, but if you have disabled setuid
2117 * scripts in the kernel, this will attempt to emulate setuid and setgid
2118 * on scripts that have those now-otherwise-useless bits set. The setuid
2119 * root version must be called suidperl or sperlN.NNN. If regular perl
2120 * discovers that it has opened a setuid script, it calls suidperl with
2121 * the same argv that it had. If suidperl finds that the script it has
2122 * just opened is NOT setuid root, it sets the effective uid back to the
2123 * uid. We don't just make perl setuid root because that loses the
2124 * effective uid we had before invoking perl, if it was different from the
2127 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2128 * be defined in suidperl only. suidperl must be setuid root. The
2129 * Configure script will set this up for you if you want it.
2136 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2137 croak("Can't stat script \"%s\"",PL_origfilename);
2138 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2142 #ifndef HAS_SETREUID
2143 /* On this access check to make sure the directories are readable,
2144 * there is actually a small window that the user could use to make
2145 * filename point to an accessible directory. So there is a faint
2146 * chance that someone could execute a setuid script down in a
2147 * non-accessible directory. I don't know what to do about that.
2148 * But I don't think it's too important. The manual lies when
2149 * it says access() is useful in setuid programs.
2151 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2152 croak("Permission denied");
2154 /* If we can swap euid and uid, then we can determine access rights
2155 * with a simple stat of the file, and then compare device and
2156 * inode to make sure we did stat() on the same file we opened.
2157 * Then we just have to make sure he or she can execute it.
2160 struct stat tmpstatbuf;
2164 setreuid(PL_euid,PL_uid) < 0
2167 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2170 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2171 croak("Can't swap uid and euid"); /* really paranoid */
2172 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2173 croak("Permission denied"); /* testing full pathname here */
2174 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2175 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2176 (void)PerlIO_close(PL_rsfp);
2177 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2178 PerlIO_printf(PL_rsfp,
2179 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2180 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2181 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2182 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2183 SvPVX(GvSV(PL_curcop->cop_filegv)),
2184 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2185 (void)PerlProc_pclose(PL_rsfp);
2187 croak("Permission denied\n");
2191 setreuid(PL_uid,PL_euid) < 0
2193 # if defined(HAS_SETRESUID)
2194 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2197 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2198 croak("Can't reswap uid and euid");
2199 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2200 croak("Permission denied\n");
2202 #endif /* HAS_SETREUID */
2203 #endif /* IAMSUID */
2205 if (!S_ISREG(PL_statbuf.st_mode))
2206 croak("Permission denied");
2207 if (PL_statbuf.st_mode & S_IWOTH)
2208 croak("Setuid/gid script is writable by world");
2209 PL_doswitches = FALSE; /* -s is insecure in suid */
2210 PL_curcop->cop_line++;
2211 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2212 strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
2213 croak("No #! line");
2214 s = SvPV(PL_linestr,PL_na)+2;
2216 while (!isSPACE(*s)) s++;
2217 for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
2218 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2219 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2220 croak("Not a perl script");
2221 while (*s == ' ' || *s == '\t') s++;
2223 * #! arg must be what we saw above. They can invoke it by
2224 * mentioning suidperl explicitly, but they may not add any strange
2225 * arguments beyond what #! says if they do invoke suidperl that way.
2227 len = strlen(validarg);
2228 if (strEQ(validarg," PHOOEY ") ||
2229 strnNE(s,validarg,len) || !isSPACE(s[len]))
2230 croak("Args must match #! line");
2233 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2234 PL_euid == PL_statbuf.st_uid)
2236 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2237 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2238 #endif /* IAMSUID */
2240 if (PL_euid) { /* oops, we're not the setuid root perl */
2241 (void)PerlIO_close(PL_rsfp);
2244 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2246 croak("Can't do setuid\n");
2249 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2251 (void)setegid(PL_statbuf.st_gid);
2254 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2256 #ifdef HAS_SETRESGID
2257 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2259 PerlProc_setgid(PL_statbuf.st_gid);
2263 if (PerlProc_getegid() != PL_statbuf.st_gid)
2264 croak("Can't do setegid!\n");
2266 if (PL_statbuf.st_mode & S_ISUID) {
2267 if (PL_statbuf.st_uid != PL_euid)
2269 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2272 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2274 #ifdef HAS_SETRESUID
2275 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2277 PerlProc_setuid(PL_statbuf.st_uid);
2281 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2282 croak("Can't do seteuid!\n");
2284 else if (PL_uid) { /* oops, mustn't run as root */
2286 (void)seteuid((Uid_t)PL_uid);
2289 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2291 #ifdef HAS_SETRESUID
2292 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2294 PerlProc_setuid((Uid_t)PL_uid);
2298 if (PerlProc_geteuid() != PL_uid)
2299 croak("Can't do seteuid!\n");
2302 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2303 croak("Permission denied\n"); /* they can't do this */
2306 else if (PL_preprocess)
2307 croak("-P not allowed for setuid/setgid script\n");
2308 else if (fdscript >= 0)
2309 croak("fd script not allowed in suidperl\n");
2311 croak("Script is not setuid/setgid in suidperl\n");
2313 /* We absolutely must clear out any saved ids here, so we */
2314 /* exec the real perl, substituting fd script for scriptname. */
2315 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2316 PerlIO_rewind(PL_rsfp);
2317 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2318 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2319 if (!PL_origargv[which])
2320 croak("Permission denied");
2321 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2322 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2323 #if defined(HAS_FCNTL) && defined(F_SETFD)
2324 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2326 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2327 croak("Can't do setuid\n");
2328 #endif /* IAMSUID */
2330 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2331 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2333 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2334 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2336 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2339 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2340 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2341 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2342 /* not set-id, must be wrapped */
2348 find_beginning(void)
2350 register char *s, *s2;
2352 /* skip forward in input to the real script? */
2355 while (PL_doextract) {
2356 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2357 croak("No Perl script found in input\n");
2358 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2359 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2360 PL_doextract = FALSE;
2361 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2363 while (*s == ' ' || *s == '\t') s++;
2365 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2366 if (strnEQ(s2-4,"perl",4))
2368 while (s = moreswitches(s)) ;
2370 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2371 croak("Can't chdir to %s",PL_cddir);
2380 PL_uid = (int)PerlProc_getuid();
2381 PL_euid = (int)PerlProc_geteuid();
2382 PL_gid = (int)PerlProc_getgid();
2383 PL_egid = (int)PerlProc_getegid();
2385 PL_uid |= PL_gid << 16;
2386 PL_euid |= PL_egid << 16;
2388 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2392 forbid_setid(char *s)
2394 if (PL_euid != PL_uid)
2395 croak("No %s allowed while running setuid", s);
2396 if (PL_egid != PL_gid)
2397 croak("No %s allowed while running setgid", s);
2404 PL_curstash = PL_debstash;
2405 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2406 AvREAL_off(PL_dbargs);
2407 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2408 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2409 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2410 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2411 sv_setiv(PL_DBsingle, 0);
2412 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2413 sv_setiv(PL_DBtrace, 0);
2414 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2415 sv_setiv(PL_DBsignal, 0);
2416 PL_curstash = PL_defstash;
2419 #ifndef STRESS_REALLOC
2420 #define REASONABLE(size) (size)
2422 #define REASONABLE(size) (1) /* unreasonable */
2426 init_stacks(ARGSproto)
2428 /* start with 128-item stack and 8K cxstack */
2429 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2430 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2431 PL_curstackinfo->si_type = PERLSI_MAIN;
2432 PL_curstack = PL_curstackinfo->si_stack;
2433 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2435 PL_stack_base = AvARRAY(PL_curstack);
2436 PL_stack_sp = PL_stack_base;
2437 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2439 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2442 PL_tmps_max = REASONABLE(128);
2444 New(54,PL_markstack,REASONABLE(32),I32);
2445 PL_markstack_ptr = PL_markstack;
2446 PL_markstack_max = PL_markstack + REASONABLE(32);
2450 New(54,PL_scopestack,REASONABLE(32),I32);
2451 PL_scopestack_ix = 0;
2452 PL_scopestack_max = REASONABLE(32);
2454 New(54,PL_savestack,REASONABLE(128),ANY);
2455 PL_savestack_ix = 0;
2456 PL_savestack_max = REASONABLE(128);
2458 New(54,PL_retstack,REASONABLE(16),OP*);
2460 PL_retstack_max = REASONABLE(16);
2469 while (PL_curstackinfo->si_next)
2470 PL_curstackinfo = PL_curstackinfo->si_next;
2471 while (PL_curstackinfo) {
2472 PERL_SI *p = PL_curstackinfo->si_prev;
2473 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2474 Safefree(PL_curstackinfo->si_cxstack);
2475 Safefree(PL_curstackinfo);
2476 PL_curstackinfo = p;
2478 Safefree(PL_tmps_stack);
2479 Safefree(PL_markstack);
2480 Safefree(PL_scopestack);
2481 Safefree(PL_savestack);
2482 Safefree(PL_retstack);
2484 Safefree(PL_debname);
2485 Safefree(PL_debdelim);
2490 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2501 lex_start(PL_linestr);
2503 PL_subname = newSVpv("main",4);
2507 init_predump_symbols(void)
2513 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2514 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2515 GvMULTI_on(PL_stdingv);
2516 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2517 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2519 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2521 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2523 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2525 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2527 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2529 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2530 GvMULTI_on(othergv);
2531 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2532 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2534 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2536 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2539 PL_osname = savepv(OSNAME);
2543 init_postdump_symbols(register int argc, register char **argv, register char **env)
2550 argc--,argv++; /* skip name of script */
2551 if (PL_doswitches) {
2552 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2555 if (argv[0][1] == '-') {
2559 if (s = strchr(argv[0], '=')) {
2561 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2564 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2567 PL_toptarget = NEWSV(0,0);
2568 sv_upgrade(PL_toptarget, SVt_PVFM);
2569 sv_setpvn(PL_toptarget, "", 0);
2570 PL_bodytarget = NEWSV(0,0);
2571 sv_upgrade(PL_bodytarget, SVt_PVFM);
2572 sv_setpvn(PL_bodytarget, "", 0);
2573 PL_formtarget = PL_bodytarget;
2576 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2577 sv_setpv(GvSV(tmpgv),PL_origfilename);
2578 magicname("0", "0", 1);
2580 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2581 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2582 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2583 GvMULTI_on(PL_argvgv);
2584 (void)gv_AVadd(PL_argvgv);
2585 av_clear(GvAVn(PL_argvgv));
2586 for (; argc > 0; argc--,argv++) {
2587 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2590 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2592 GvMULTI_on(PL_envgv);
2593 hv = GvHVn(PL_envgv);
2594 hv_magic(hv, PL_envgv, 'E');
2595 #ifndef VMS /* VMS doesn't have environ array */
2596 /* Note that if the supplied env parameter is actually a copy
2597 of the global environ then it may now point to free'd memory
2598 if the environment has been modified since. To avoid this
2599 problem we treat env==NULL as meaning 'use the default'
2604 environ[0] = Nullch;
2605 for (; *env; env++) {
2606 if (!(s = strchr(*env,'=')))
2612 sv = newSVpv(s--,0);
2613 (void)hv_store(hv, *env, s - *env, sv, 0);
2615 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2616 /* Sins of the RTL. See note in my_setenv(). */
2617 (void)PerlEnv_putenv(savepv(*env));
2621 #ifdef DYNAMIC_ENV_FETCH
2622 HvNAME(hv) = savepv(ENV_HV_NAME);
2626 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2627 sv_setiv(GvSV(tmpgv), (IV)getpid());
2636 s = PerlEnv_getenv("PERL5LIB");
2640 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2642 /* Treat PERL5?LIB as a possible search list logical name -- the
2643 * "natural" VMS idiom for a Unix path string. We allow each
2644 * element to be a set of |-separated directories for compatibility.
2648 if (my_trnlnm("PERL5LIB",buf,0))
2649 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2651 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2655 /* Use the ~-expanded versions of APPLLIB (undocumented),
2656 ARCHLIB PRIVLIB SITEARCH and SITELIB
2659 incpush(APPLLIB_EXP, TRUE);
2663 incpush(ARCHLIB_EXP, FALSE);
2666 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2669 incpush(PRIVLIB_EXP, TRUE);
2671 incpush(PRIVLIB_EXP, FALSE);
2675 incpush(SITEARCH_EXP, FALSE);
2679 incpush(SITELIB_EXP, TRUE);
2681 incpush(SITELIB_EXP, FALSE);
2685 incpush(".", FALSE);
2689 # define PERLLIB_SEP ';'
2692 # define PERLLIB_SEP '|'
2694 # define PERLLIB_SEP ':'
2697 #ifndef PERLLIB_MANGLE
2698 # define PERLLIB_MANGLE(s,n) (s)
2702 incpush(char *p, int addsubdirs)
2704 SV *subdir = Nullsv;
2710 subdir = sv_newmortal();
2711 if (!PL_archpat_auto) {
2712 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2713 + sizeof("//auto"));
2714 New(55, PL_archpat_auto, len, char);
2715 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2717 for (len = sizeof(ARCHNAME) + 2;
2718 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2719 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2724 /* Break at all separators */
2726 SV *libdir = NEWSV(55,0);
2729 /* skip any consecutive separators */
2730 while ( *p == PERLLIB_SEP ) {
2731 /* Uncomment the next line for PATH semantics */
2732 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2736 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2737 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2742 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2743 p = Nullch; /* break out */
2747 * BEFORE pushing libdir onto @INC we may first push version- and
2748 * archname-specific sub-directories.
2751 struct stat tmpstatbuf;
2756 if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
2758 while (unix[len-1] == '/') len--; /* Cosmetic */
2759 sv_usepvn(libdir,unix,len);
2762 PerlIO_printf(PerlIO_stderr(),
2763 "Failed to unixify @INC element \"%s\"\n",
2764 SvPV(libdir,PL_na));
2766 /* .../archname/version if -d .../archname/version/auto */
2767 sv_setsv(subdir, libdir);
2768 sv_catpv(subdir, PL_archpat_auto);
2769 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2770 S_ISDIR(tmpstatbuf.st_mode))
2771 av_push(GvAVn(PL_incgv),
2772 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2774 /* .../archname if -d .../archname/auto */
2775 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2776 strlen(PL_patchlevel) + 1, "", 0);
2777 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2778 S_ISDIR(tmpstatbuf.st_mode))
2779 av_push(GvAVn(PL_incgv),
2780 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2783 /* finally push this lib directory on the end of @INC */
2784 av_push(GvAVn(PL_incgv), libdir);
2789 STATIC struct perl_thread *
2792 struct perl_thread *thr;
2795 Newz(53, thr, 1, struct perl_thread);
2796 PL_curcop = &PL_compiling;
2797 thr->cvcache = newHV();
2798 thr->threadsv = newAV();
2799 /* thr->threadsvp is set when find_threadsv is called */
2800 thr->specific = newAV();
2801 thr->errhv = newHV();
2802 thr->flags = THRf_R_JOINABLE;
2803 MUTEX_INIT(&thr->mutex);
2804 /* Handcraft thrsv similarly to mess_sv */
2805 New(53, PL_thrsv, 1, SV);
2806 Newz(53, xpv, 1, XPV);
2807 SvFLAGS(PL_thrsv) = SVt_PV;
2808 SvANY(PL_thrsv) = (void*)xpv;
2809 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2810 SvPVX(PL_thrsv) = (char*)thr;
2811 SvCUR_set(PL_thrsv, sizeof(thr));
2812 SvLEN_set(PL_thrsv, sizeof(thr));
2813 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2814 thr->oursv = PL_thrsv;
2815 PL_chopset = " \n-";
2818 MUTEX_LOCK(&PL_threads_mutex);
2823 MUTEX_UNLOCK(&PL_threads_mutex);
2825 #ifdef HAVE_THREAD_INTERN
2826 init_thread_intern(thr);
2829 #ifdef SET_THREAD_SELF
2830 SET_THREAD_SELF(thr);
2832 thr->self = pthread_self();
2833 #endif /* SET_THREAD_SELF */
2837 * These must come after the SET_THR because sv_setpvn does
2838 * SvTAINT and the taint fields require dTHR.
2840 PL_toptarget = NEWSV(0,0);
2841 sv_upgrade(PL_toptarget, SVt_PVFM);
2842 sv_setpvn(PL_toptarget, "", 0);
2843 PL_bodytarget = NEWSV(0,0);
2844 sv_upgrade(PL_bodytarget, SVt_PVFM);
2845 sv_setpvn(PL_bodytarget, "", 0);
2846 PL_formtarget = PL_bodytarget;
2847 thr->errsv = newSVpv("", 0);
2848 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2851 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2852 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2854 PL_reginterp_cnt = 0;
2858 #endif /* USE_THREADS */
2861 call_list(I32 oldscope, AV *paramList)
2864 line_t oldline = PL_curcop->cop_line;
2869 while (AvFILL(paramList) >= 0) {
2870 CV *cv = (CV*)av_shift(paramList);
2878 PUSHMARK(PL_stack_sp);
2879 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2880 (void)SvPV(atsv, len);
2883 PL_curcop = &PL_compiling;
2884 PL_curcop->cop_line = oldline;
2885 if (paramList == PL_beginav)
2886 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2888 sv_catpv(atsv, "END failed--cleanup aborted");
2889 while (PL_scopestack_ix > oldscope)
2891 croak("%s", SvPVX(atsv));
2899 /* my_exit() was called */
2900 while (PL_scopestack_ix > oldscope)
2903 PL_curstash = PL_defstash;
2905 call_list(oldscope, PL_endav);
2907 PL_curcop = &PL_compiling;
2908 PL_curcop->cop_line = oldline;
2909 if (PL_statusvalue) {
2910 if (paramList == PL_beginav)
2911 croak("BEGIN failed--compilation aborted");
2913 croak("END failed--cleanup aborted");
2918 if (!PL_restartop) {
2919 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2924 PL_curcop = &PL_compiling;
2925 PL_curcop->cop_line = oldline;
2937 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2938 thr, (unsigned long) status));
2947 STATUS_NATIVE_SET(status);
2954 my_failure_exit(void)
2957 if (vaxc$errno & 1) {
2958 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2959 STATUS_NATIVE_SET(44);
2962 if (!vaxc$errno && errno) /* unlikely */
2963 STATUS_NATIVE_SET(44);
2965 STATUS_NATIVE_SET(vaxc$errno);
2970 STATUS_POSIX_SET(errno);
2972 exitstatus = STATUS_POSIX >> 8;
2973 if (exitstatus & 255)
2974 STATUS_POSIX_SET(exitstatus);
2976 STATUS_POSIX_SET(255);
2986 register PERL_CONTEXT *cx;
2991 SvREFCNT_dec(PL_e_script);
2992 PL_e_script = Nullsv;
2995 POPSTACK_TO(PL_mainstack);
2996 if (cxstack_ix >= 0) {
2999 POPBLOCK(cx,PL_curpm);
3008 #endif /* PERL_OBJECT */
3014 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3016 read_e_script(int idx, SV *buf_sv, int maxlen)
3020 p = SvPVX(PL_e_script);
3021 nl = strchr(p, '\n');
3022 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3024 filter_del(read_e_script);
3027 sv_catpvn(buf_sv, p, nl-p);
3028 sv_chop(PL_e_script, nl);