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))
1452 croak(SvPVx(ERRSV, PL_na));
1457 /* Require a module. */
1460 perl_require_pv(char *pv)
1464 PUSHSTACKi(PERLSI_REQUIRE);
1466 sv = sv_newmortal();
1467 sv_setpv(sv, "require '");
1470 perl_eval_sv(sv, G_DISCARD);
1476 magicname(char *sym, char *name, I32 namlen)
1480 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1481 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1485 usage(char *name) /* XXX move this out into a module ? */
1488 /* This message really ought to be max 23 lines.
1489 * Removed -h because the user already knows that opton. Others? */
1491 static char *usage_msg[] = {
1492 "-0[octal] specify record separator (\\0, if no argument)",
1493 "-a autosplit mode with -n or -p (splits $_ into @F)",
1494 "-c check syntax only (runs BEGIN and END blocks)",
1495 "-d[:debugger] run scripts under debugger",
1496 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1497 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1498 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1499 "-i[extension] edit <> files in place (make backup if extension supplied)",
1500 "-Idirectory specify @INC/#include directory (may be used more than once)",
1501 "-l[octal] enable line ending processing, specifies line terminator",
1502 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1503 "-n assume 'while (<>) { ... }' loop around your script",
1504 "-p assume loop like -n but print line also like sed",
1505 "-P run script through C preprocessor before compilation",
1506 "-s enable some switch parsing for switches after script name",
1507 "-S look for the script using PATH environment variable",
1508 "-T turn on tainting checks",
1509 "-u dump core after parsing script",
1510 "-U allow unsafe operations",
1511 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1512 "-V[:variable] print perl configuration information",
1513 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1514 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1518 char **p = usage_msg;
1520 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1522 printf("\n %s", *p++);
1525 /* This routine handles any switches that can be given during run */
1528 moreswitches(char *s)
1537 rschar = scan_oct(s, 4, &numlen);
1538 SvREFCNT_dec(PL_nrs);
1539 if (rschar & ~((U8)~0))
1540 PL_nrs = &PL_sv_undef;
1541 else if (!rschar && numlen >= 2)
1542 PL_nrs = newSVpv("", 0);
1545 PL_nrs = newSVpv(&ch, 1);
1551 PL_splitstr = savepv(s + 1);
1565 if (*s == ':' || *s == '=') {
1566 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1570 PL_perldb = PERLDB_ALL;
1577 if (isALPHA(s[1])) {
1578 static char debopts[] = "psltocPmfrxuLHXDS";
1581 for (s++; *s && (d = strchr(debopts,*s)); s++)
1582 PL_debug |= 1 << (d - debopts);
1585 PL_debug = atoi(s+1);
1586 for (s++; isDIGIT(*s); s++) ;
1588 PL_debug |= 0x80000000;
1590 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1591 for (s++; isALNUM(*s); s++) ;
1596 usage(PL_origargv[0]);
1600 Safefree(PL_inplace);
1601 PL_inplace = savepv(s+1);
1603 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1606 if (*s == '-') /* Additional switches on #! line. */
1610 case 'I': /* -I handled both here and in parse_perl() */
1613 while (*s && isSPACE(*s))
1617 for (e = s; *e && !isSPACE(*e); e++) ;
1618 p = savepvn(s, e-s);
1624 croak("No space allowed after -I");
1632 PL_ors = savepv("\n");
1634 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1639 if (RsPARA(PL_nrs)) {
1644 PL_ors = SvPV(PL_nrs, PL_orslen);
1645 PL_ors = savepvn(PL_ors, PL_orslen);
1649 forbid_setid("-M"); /* XXX ? */
1652 forbid_setid("-m"); /* XXX ? */
1657 /* -M-foo == 'no foo' */
1658 if (*s == '-') { use = "no "; ++s; }
1659 sv = newSVpv(use,0);
1661 /* We allow -M'Module qw(Foo Bar)' */
1662 while(isALNUM(*s) || *s==':') ++s;
1664 sv_catpv(sv, start);
1665 if (*(start-1) == 'm') {
1667 croak("Can't use '%c' after -mname", *s);
1668 sv_catpv( sv, " ()");
1671 sv_catpvn(sv, start, s-start);
1672 sv_catpv(sv, " split(/,/,q{");
1677 if (PL_preambleav == NULL)
1678 PL_preambleav = newAV();
1679 av_push(PL_preambleav, sv);
1682 croak("No space allowed after -%c", *(s-1));
1694 PL_doswitches = TRUE;
1699 croak("Too late for \"-T\" option");
1703 PL_do_undump = TRUE;
1711 #if defined(SUBVERSION) && SUBVERSION > 0
1712 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1713 PATCHLEVEL, SUBVERSION, ARCHNAME);
1715 printf("\nThis is perl, version %s built for %s",
1716 PL_patchlevel, ARCHNAME);
1718 #if defined(LOCAL_PATCH_COUNT)
1719 if (LOCAL_PATCH_COUNT > 0)
1720 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1721 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1724 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1726 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1729 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1730 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1733 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1734 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1737 printf("atariST series port, ++jrb bammi@cadence.com\n");
1740 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1743 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1746 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
1749 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n");
1752 printf("VM/ESA port by Neale Ferguson, 1998\n");
1755 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n");
1757 #ifdef BINARY_BUILD_NOTICE
1758 BINARY_BUILD_NOTICE;
1761 Perl may be copied only under the terms of either the Artistic License or the\n\
1762 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1763 Complete documentation for Perl, including FAQ lists, should be found on\n\
1764 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1765 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1768 if (! (PL_dowarn & G_WARN_ALL_MASK))
1769 PL_dowarn |= G_WARN_ON;
1773 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1774 PL_compiling.cop_warnings = WARN_ALL ;
1778 PL_dowarn = G_WARN_ALL_OFF;
1779 PL_compiling.cop_warnings = WARN_NONE ;
1784 if (s[1] == '-') /* Additional switches on #! line. */
1789 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1795 #ifdef ALTERNATE_SHEBANG
1796 case 'S': /* OS/2 needs -S on "extproc" line. */
1804 croak("Can't emulate -%.1s on #! line",s);
1809 /* compliments of Tom Christiansen */
1811 /* unexec() can be found in the Gnu emacs distribution */
1812 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1823 prog = newSVpv(BIN_EXP, 0);
1824 sv_catpv(prog, "/perl");
1825 file = newSVpv(PL_origfilename, 0);
1826 sv_catpv(file, ".perldump");
1828 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1829 /* unexec prints msg to stderr in case of failure */
1830 PerlProc_exit(status);
1833 # include <lib$routines.h>
1834 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1836 ABORT(); /* for use with undump */
1841 /* initialize curinterp */
1846 #ifdef PERL_OBJECT /* XXX kludge */
1849 PL_chopset = " \n-"; \
1850 PL_copline = NOLINE; \
1851 PL_curcop = &PL_compiling;\
1852 PL_curcopdb = NULL; \
1855 PL_dumpindent = 4; \
1856 PL_laststatval = -1; \
1857 PL_laststype = OP_STAT; \
1858 PL_maxscream = -1; \
1859 PL_maxsysfd = MAXSYSFD; \
1860 PL_statname = Nullsv; \
1861 PL_tmps_floor = -1; \
1863 PL_op_mask = NULL; \
1865 PL_laststatval = -1; \
1866 PL_laststype = OP_STAT; \
1867 PL_mess_sv = Nullsv; \
1868 PL_splitstr = " "; \
1869 PL_generation = 100; \
1870 PL_exitlist = NULL; \
1871 PL_exitlistlen = 0; \
1873 PL_in_clean_objs = FALSE; \
1874 PL_in_clean_all = FALSE; \
1875 PL_profiledata = NULL; \
1877 PL_rsfp_filters = Nullav; \
1882 # ifdef MULTIPLICITY
1883 # define PERLVAR(var,type)
1884 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1885 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1886 # include "intrpvar.h"
1887 # ifndef USE_THREADS
1888 # include "thrdvar.h"
1894 # define PERLVAR(var,type)
1895 # define PERLVARI(var,type,init) PL_##var = init;
1896 # define PERLVARIC(var,type,init) PL_##var = init;
1897 # include "intrpvar.h"
1898 # ifndef USE_THREADS
1899 # include "thrdvar.h"
1910 init_main_stash(void)
1915 /* Note that strtab is a rather special HV. Assumptions are made
1916 about not iterating on it, and not adding tie magic to it.
1917 It is properly deallocated in perl_destruct() */
1918 PL_strtab = newHV();
1920 MUTEX_INIT(&PL_strtab_mutex);
1922 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1923 hv_ksplit(PL_strtab, 512);
1925 PL_curstash = PL_defstash = newHV();
1926 PL_curstname = newSVpv("main",4);
1927 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1928 SvREFCNT_dec(GvHV(gv));
1929 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1931 HvNAME(PL_defstash) = savepv("main");
1932 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1933 GvMULTI_on(PL_incgv);
1934 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1935 GvMULTI_on(PL_hintgv);
1936 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1937 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1938 GvMULTI_on(PL_errgv);
1939 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1940 GvMULTI_on(PL_replgv);
1941 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1942 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1943 sv_setpvn(ERRSV, "", 0);
1944 PL_curstash = PL_defstash;
1945 PL_compiling.cop_stash = PL_defstash;
1946 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1947 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1948 /* We must init $/ before switches are processed. */
1949 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1953 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1961 PL_origfilename = savepv("-e");
1964 /* if find_script() returns, it returns a malloc()-ed value */
1965 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1967 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1968 char *s = scriptname + 8;
1969 *fdscript = atoi(s);
1973 scriptname = savepv(s + 1);
1974 Safefree(PL_origfilename);
1975 PL_origfilename = scriptname;
1980 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1981 if (strEQ(PL_origfilename,"-"))
1983 if (*fdscript >= 0) {
1984 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1985 #if defined(HAS_FCNTL) && defined(F_SETFD)
1987 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1990 else if (PL_preprocess) {
1991 char *cpp_cfg = CPPSTDIN;
1992 SV *cpp = newSVpv("",0);
1993 SV *cmd = NEWSV(0,0);
1995 if (strEQ(cpp_cfg, "cppstdin"))
1996 sv_catpvf(cpp, "%s/", BIN_EXP);
1997 sv_catpv(cpp, cpp_cfg);
2000 sv_catpv(sv,PRIVLIB_EXP);
2004 sed %s -e \"/^[^#]/b\" \
2005 -e \"/^#[ ]*include[ ]/b\" \
2006 -e \"/^#[ ]*define[ ]/b\" \
2007 -e \"/^#[ ]*if[ ]/b\" \
2008 -e \"/^#[ ]*ifdef[ ]/b\" \
2009 -e \"/^#[ ]*ifndef[ ]/b\" \
2010 -e \"/^#[ ]*else/b\" \
2011 -e \"/^#[ ]*elif[ ]/b\" \
2012 -e \"/^#[ ]*undef[ ]/b\" \
2013 -e \"/^#[ ]*endif/b\" \
2016 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2020 %s %s -e '/^[^#]/b' \
2021 -e '/^#[ ]*include[ ]/b' \
2022 -e '/^#[ ]*define[ ]/b' \
2023 -e '/^#[ ]*if[ ]/b' \
2024 -e '/^#[ ]*ifdef[ ]/b' \
2025 -e '/^#[ ]*ifndef[ ]/b' \
2026 -e '/^#[ ]*else/b' \
2027 -e '/^#[ ]*elif[ ]/b' \
2028 -e '/^#[ ]*undef[ ]/b' \
2029 -e '/^#[ ]*endif/b' \
2034 %s %s -e '/^[^#]/b' \
2035 -e '/^#[ ]*include[ ]/b' \
2036 -e '/^#[ ]*define[ ]/b' \
2037 -e '/^#[ ]*if[ ]/b' \
2038 -e '/^#[ ]*ifdef[ ]/b' \
2039 -e '/^#[ ]*ifndef[ ]/b' \
2040 -e '/^#[ ]*else/b' \
2041 -e '/^#[ ]*elif[ ]/b' \
2042 -e '/^#[ ]*undef[ ]/b' \
2043 -e '/^#[ ]*endif/b' \
2052 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2054 scriptname, cpp, sv, CPPMINUS);
2055 PL_doextract = FALSE;
2056 #ifdef IAMSUID /* actually, this is caught earlier */
2057 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2059 (void)seteuid(PL_uid); /* musn't stay setuid root */
2062 (void)setreuid((Uid_t)-1, PL_uid);
2064 #ifdef HAS_SETRESUID
2065 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2067 PerlProc_setuid(PL_uid);
2071 if (PerlProc_geteuid() != PL_uid)
2072 croak("Can't do seteuid!\n");
2074 #endif /* IAMSUID */
2075 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2079 else if (!*scriptname) {
2080 forbid_setid("program input from stdin");
2081 PL_rsfp = PerlIO_stdin();
2084 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2085 #if defined(HAS_FCNTL) && defined(F_SETFD)
2087 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2092 #ifndef IAMSUID /* in case script is not readable before setuid */
2094 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2095 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2098 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2099 croak("Can't do setuid\n");
2103 croak("Can't open perl script \"%s\": %s\n",
2104 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2109 validate_suid(char *validarg, char *scriptname, int fdscript)
2113 /* do we need to emulate setuid on scripts? */
2115 /* This code is for those BSD systems that have setuid #! scripts disabled
2116 * in the kernel because of a security problem. Merely defining DOSUID
2117 * in perl will not fix that problem, but if you have disabled setuid
2118 * scripts in the kernel, this will attempt to emulate setuid and setgid
2119 * on scripts that have those now-otherwise-useless bits set. The setuid
2120 * root version must be called suidperl or sperlN.NNN. If regular perl
2121 * discovers that it has opened a setuid script, it calls suidperl with
2122 * the same argv that it had. If suidperl finds that the script it has
2123 * just opened is NOT setuid root, it sets the effective uid back to the
2124 * uid. We don't just make perl setuid root because that loses the
2125 * effective uid we had before invoking perl, if it was different from the
2128 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2129 * be defined in suidperl only. suidperl must be setuid root. The
2130 * Configure script will set this up for you if you want it.
2137 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2138 croak("Can't stat script \"%s\"",PL_origfilename);
2139 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2143 #ifndef HAS_SETREUID
2144 /* On this access check to make sure the directories are readable,
2145 * there is actually a small window that the user could use to make
2146 * filename point to an accessible directory. So there is a faint
2147 * chance that someone could execute a setuid script down in a
2148 * non-accessible directory. I don't know what to do about that.
2149 * But I don't think it's too important. The manual lies when
2150 * it says access() is useful in setuid programs.
2152 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2153 croak("Permission denied");
2155 /* If we can swap euid and uid, then we can determine access rights
2156 * with a simple stat of the file, and then compare device and
2157 * inode to make sure we did stat() on the same file we opened.
2158 * Then we just have to make sure he or she can execute it.
2161 struct stat tmpstatbuf;
2165 setreuid(PL_euid,PL_uid) < 0
2168 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2171 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2172 croak("Can't swap uid and euid"); /* really paranoid */
2173 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2174 croak("Permission denied"); /* testing full pathname here */
2175 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2176 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2177 (void)PerlIO_close(PL_rsfp);
2178 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2179 PerlIO_printf(PL_rsfp,
2180 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2181 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2182 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2183 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2184 SvPVX(GvSV(PL_curcop->cop_filegv)),
2185 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2186 (void)PerlProc_pclose(PL_rsfp);
2188 croak("Permission denied\n");
2192 setreuid(PL_uid,PL_euid) < 0
2194 # if defined(HAS_SETRESUID)
2195 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2198 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2199 croak("Can't reswap uid and euid");
2200 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2201 croak("Permission denied\n");
2203 #endif /* HAS_SETREUID */
2204 #endif /* IAMSUID */
2206 if (!S_ISREG(PL_statbuf.st_mode))
2207 croak("Permission denied");
2208 if (PL_statbuf.st_mode & S_IWOTH)
2209 croak("Setuid/gid script is writable by world");
2210 PL_doswitches = FALSE; /* -s is insecure in suid */
2211 PL_curcop->cop_line++;
2212 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2213 strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
2214 croak("No #! line");
2215 s = SvPV(PL_linestr,PL_na)+2;
2217 while (!isSPACE(*s)) s++;
2218 for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
2219 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2220 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2221 croak("Not a perl script");
2222 while (*s == ' ' || *s == '\t') s++;
2224 * #! arg must be what we saw above. They can invoke it by
2225 * mentioning suidperl explicitly, but they may not add any strange
2226 * arguments beyond what #! says if they do invoke suidperl that way.
2228 len = strlen(validarg);
2229 if (strEQ(validarg," PHOOEY ") ||
2230 strnNE(s,validarg,len) || !isSPACE(s[len]))
2231 croak("Args must match #! line");
2234 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2235 PL_euid == PL_statbuf.st_uid)
2237 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2238 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2239 #endif /* IAMSUID */
2241 if (PL_euid) { /* oops, we're not the setuid root perl */
2242 (void)PerlIO_close(PL_rsfp);
2245 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2247 croak("Can't do setuid\n");
2250 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2252 (void)setegid(PL_statbuf.st_gid);
2255 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2257 #ifdef HAS_SETRESGID
2258 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2260 PerlProc_setgid(PL_statbuf.st_gid);
2264 if (PerlProc_getegid() != PL_statbuf.st_gid)
2265 croak("Can't do setegid!\n");
2267 if (PL_statbuf.st_mode & S_ISUID) {
2268 if (PL_statbuf.st_uid != PL_euid)
2270 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2273 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2275 #ifdef HAS_SETRESUID
2276 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2278 PerlProc_setuid(PL_statbuf.st_uid);
2282 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2283 croak("Can't do seteuid!\n");
2285 else if (PL_uid) { /* oops, mustn't run as root */
2287 (void)seteuid((Uid_t)PL_uid);
2290 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2292 #ifdef HAS_SETRESUID
2293 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2295 PerlProc_setuid((Uid_t)PL_uid);
2299 if (PerlProc_geteuid() != PL_uid)
2300 croak("Can't do seteuid!\n");
2303 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2304 croak("Permission denied\n"); /* they can't do this */
2307 else if (PL_preprocess)
2308 croak("-P not allowed for setuid/setgid script\n");
2309 else if (fdscript >= 0)
2310 croak("fd script not allowed in suidperl\n");
2312 croak("Script is not setuid/setgid in suidperl\n");
2314 /* We absolutely must clear out any saved ids here, so we */
2315 /* exec the real perl, substituting fd script for scriptname. */
2316 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2317 PerlIO_rewind(PL_rsfp);
2318 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2319 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2320 if (!PL_origargv[which])
2321 croak("Permission denied");
2322 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2323 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2324 #if defined(HAS_FCNTL) && defined(F_SETFD)
2325 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2327 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2328 croak("Can't do setuid\n");
2329 #endif /* IAMSUID */
2331 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2332 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2334 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2335 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2337 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2340 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2341 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2342 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2343 /* not set-id, must be wrapped */
2349 find_beginning(void)
2351 register char *s, *s2;
2353 /* skip forward in input to the real script? */
2356 while (PL_doextract) {
2357 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2358 croak("No Perl script found in input\n");
2359 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2360 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2361 PL_doextract = FALSE;
2362 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2364 while (*s == ' ' || *s == '\t') s++;
2366 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2367 if (strnEQ(s2-4,"perl",4))
2369 while (s = moreswitches(s)) ;
2371 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2372 croak("Can't chdir to %s",PL_cddir);
2381 PL_uid = (int)PerlProc_getuid();
2382 PL_euid = (int)PerlProc_geteuid();
2383 PL_gid = (int)PerlProc_getgid();
2384 PL_egid = (int)PerlProc_getegid();
2386 PL_uid |= PL_gid << 16;
2387 PL_euid |= PL_egid << 16;
2389 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2393 forbid_setid(char *s)
2395 if (PL_euid != PL_uid)
2396 croak("No %s allowed while running setuid", s);
2397 if (PL_egid != PL_gid)
2398 croak("No %s allowed while running setgid", s);
2405 PL_curstash = PL_debstash;
2406 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2407 AvREAL_off(PL_dbargs);
2408 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2409 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2410 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2411 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2412 sv_setiv(PL_DBsingle, 0);
2413 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2414 sv_setiv(PL_DBtrace, 0);
2415 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2416 sv_setiv(PL_DBsignal, 0);
2417 PL_curstash = PL_defstash;
2420 #ifndef STRESS_REALLOC
2421 #define REASONABLE(size) (size)
2423 #define REASONABLE(size) (1) /* unreasonable */
2427 init_stacks(ARGSproto)
2429 /* start with 128-item stack and 8K cxstack */
2430 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2431 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2432 PL_curstackinfo->si_type = PERLSI_MAIN;
2433 PL_curstack = PL_curstackinfo->si_stack;
2434 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2436 PL_stack_base = AvARRAY(PL_curstack);
2437 PL_stack_sp = PL_stack_base;
2438 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2440 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2443 PL_tmps_max = REASONABLE(128);
2445 New(54,PL_markstack,REASONABLE(32),I32);
2446 PL_markstack_ptr = PL_markstack;
2447 PL_markstack_max = PL_markstack + REASONABLE(32);
2451 New(54,PL_scopestack,REASONABLE(32),I32);
2452 PL_scopestack_ix = 0;
2453 PL_scopestack_max = REASONABLE(32);
2455 New(54,PL_savestack,REASONABLE(128),ANY);
2456 PL_savestack_ix = 0;
2457 PL_savestack_max = REASONABLE(128);
2459 New(54,PL_retstack,REASONABLE(16),OP*);
2461 PL_retstack_max = REASONABLE(16);
2470 while (PL_curstackinfo->si_next)
2471 PL_curstackinfo = PL_curstackinfo->si_next;
2472 while (PL_curstackinfo) {
2473 PERL_SI *p = PL_curstackinfo->si_prev;
2474 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2475 Safefree(PL_curstackinfo->si_cxstack);
2476 Safefree(PL_curstackinfo);
2477 PL_curstackinfo = p;
2479 Safefree(PL_tmps_stack);
2480 Safefree(PL_markstack);
2481 Safefree(PL_scopestack);
2482 Safefree(PL_savestack);
2483 Safefree(PL_retstack);
2485 Safefree(PL_debname);
2486 Safefree(PL_debdelim);
2491 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2502 lex_start(PL_linestr);
2504 PL_subname = newSVpv("main",4);
2508 init_predump_symbols(void)
2514 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2515 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2516 GvMULTI_on(PL_stdingv);
2517 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2518 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2520 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2522 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2524 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2526 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2528 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2530 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2531 GvMULTI_on(othergv);
2532 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2533 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2535 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2537 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2540 PL_osname = savepv(OSNAME);
2544 init_postdump_symbols(register int argc, register char **argv, register char **env)
2551 argc--,argv++; /* skip name of script */
2552 if (PL_doswitches) {
2553 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2556 if (argv[0][1] == '-') {
2560 if (s = strchr(argv[0], '=')) {
2562 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2565 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2568 PL_toptarget = NEWSV(0,0);
2569 sv_upgrade(PL_toptarget, SVt_PVFM);
2570 sv_setpvn(PL_toptarget, "", 0);
2571 PL_bodytarget = NEWSV(0,0);
2572 sv_upgrade(PL_bodytarget, SVt_PVFM);
2573 sv_setpvn(PL_bodytarget, "", 0);
2574 PL_formtarget = PL_bodytarget;
2577 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2578 sv_setpv(GvSV(tmpgv),PL_origfilename);
2579 magicname("0", "0", 1);
2581 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2582 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2583 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2584 GvMULTI_on(PL_argvgv);
2585 (void)gv_AVadd(PL_argvgv);
2586 av_clear(GvAVn(PL_argvgv));
2587 for (; argc > 0; argc--,argv++) {
2588 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2591 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2593 GvMULTI_on(PL_envgv);
2594 hv = GvHVn(PL_envgv);
2595 hv_magic(hv, PL_envgv, 'E');
2596 #ifndef VMS /* VMS doesn't have environ array */
2597 /* Note that if the supplied env parameter is actually a copy
2598 of the global environ then it may now point to free'd memory
2599 if the environment has been modified since. To avoid this
2600 problem we treat env==NULL as meaning 'use the default'
2605 environ[0] = Nullch;
2606 for (; *env; env++) {
2607 if (!(s = strchr(*env,'=')))
2613 sv = newSVpv(s--,0);
2614 (void)hv_store(hv, *env, s - *env, sv, 0);
2616 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2617 /* Sins of the RTL. See note in my_setenv(). */
2618 (void)PerlEnv_putenv(savepv(*env));
2622 #ifdef DYNAMIC_ENV_FETCH
2623 HvNAME(hv) = savepv(ENV_HV_NAME);
2627 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2628 sv_setiv(GvSV(tmpgv), (IV)getpid());
2637 s = PerlEnv_getenv("PERL5LIB");
2641 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2643 /* Treat PERL5?LIB as a possible search list logical name -- the
2644 * "natural" VMS idiom for a Unix path string. We allow each
2645 * element to be a set of |-separated directories for compatibility.
2649 if (my_trnlnm("PERL5LIB",buf,0))
2650 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2652 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2656 /* Use the ~-expanded versions of APPLLIB (undocumented),
2657 ARCHLIB PRIVLIB SITEARCH and SITELIB
2660 incpush(APPLLIB_EXP, TRUE);
2664 incpush(ARCHLIB_EXP, FALSE);
2667 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2670 incpush(PRIVLIB_EXP, TRUE);
2672 incpush(PRIVLIB_EXP, FALSE);
2676 incpush(SITEARCH_EXP, FALSE);
2680 incpush(SITELIB_EXP, TRUE);
2682 incpush(SITELIB_EXP, FALSE);
2686 incpush(".", FALSE);
2690 # define PERLLIB_SEP ';'
2693 # define PERLLIB_SEP '|'
2695 # define PERLLIB_SEP ':'
2698 #ifndef PERLLIB_MANGLE
2699 # define PERLLIB_MANGLE(s,n) (s)
2703 incpush(char *p, int addsubdirs)
2705 SV *subdir = Nullsv;
2711 subdir = sv_newmortal();
2712 if (!PL_archpat_auto) {
2713 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2714 + sizeof("//auto"));
2715 New(55, PL_archpat_auto, len, char);
2716 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2718 for (len = sizeof(ARCHNAME) + 2;
2719 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2720 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2725 /* Break at all separators */
2727 SV *libdir = NEWSV(55,0);
2730 /* skip any consecutive separators */
2731 while ( *p == PERLLIB_SEP ) {
2732 /* Uncomment the next line for PATH semantics */
2733 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2737 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2738 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2743 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2744 p = Nullch; /* break out */
2748 * BEFORE pushing libdir onto @INC we may first push version- and
2749 * archname-specific sub-directories.
2752 struct stat tmpstatbuf;
2757 if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
2759 while (unix[len-1] == '/') len--; /* Cosmetic */
2760 sv_usepvn(libdir,unix,len);
2763 PerlIO_printf(PerlIO_stderr(),
2764 "Failed to unixify @INC element \"%s\"\n",
2765 SvPV(libdir,PL_na));
2767 /* .../archname/version if -d .../archname/version/auto */
2768 sv_setsv(subdir, libdir);
2769 sv_catpv(subdir, PL_archpat_auto);
2770 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2771 S_ISDIR(tmpstatbuf.st_mode))
2772 av_push(GvAVn(PL_incgv),
2773 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2775 /* .../archname if -d .../archname/auto */
2776 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2777 strlen(PL_patchlevel) + 1, "", 0);
2778 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2779 S_ISDIR(tmpstatbuf.st_mode))
2780 av_push(GvAVn(PL_incgv),
2781 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2784 /* finally push this lib directory on the end of @INC */
2785 av_push(GvAVn(PL_incgv), libdir);
2790 STATIC struct perl_thread *
2793 struct perl_thread *thr;
2796 Newz(53, thr, 1, struct perl_thread);
2797 PL_curcop = &PL_compiling;
2798 thr->cvcache = newHV();
2799 thr->threadsv = newAV();
2800 /* thr->threadsvp is set when find_threadsv is called */
2801 thr->specific = newAV();
2802 thr->errhv = newHV();
2803 thr->flags = THRf_R_JOINABLE;
2804 MUTEX_INIT(&thr->mutex);
2805 /* Handcraft thrsv similarly to mess_sv */
2806 New(53, PL_thrsv, 1, SV);
2807 Newz(53, xpv, 1, XPV);
2808 SvFLAGS(PL_thrsv) = SVt_PV;
2809 SvANY(PL_thrsv) = (void*)xpv;
2810 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2811 SvPVX(PL_thrsv) = (char*)thr;
2812 SvCUR_set(PL_thrsv, sizeof(thr));
2813 SvLEN_set(PL_thrsv, sizeof(thr));
2814 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2815 thr->oursv = PL_thrsv;
2816 PL_chopset = " \n-";
2819 MUTEX_LOCK(&PL_threads_mutex);
2824 MUTEX_UNLOCK(&PL_threads_mutex);
2826 #ifdef HAVE_THREAD_INTERN
2827 init_thread_intern(thr);
2830 #ifdef SET_THREAD_SELF
2831 SET_THREAD_SELF(thr);
2833 thr->self = pthread_self();
2834 #endif /* SET_THREAD_SELF */
2838 * These must come after the SET_THR because sv_setpvn does
2839 * SvTAINT and the taint fields require dTHR.
2841 PL_toptarget = NEWSV(0,0);
2842 sv_upgrade(PL_toptarget, SVt_PVFM);
2843 sv_setpvn(PL_toptarget, "", 0);
2844 PL_bodytarget = NEWSV(0,0);
2845 sv_upgrade(PL_bodytarget, SVt_PVFM);
2846 sv_setpvn(PL_bodytarget, "", 0);
2847 PL_formtarget = PL_bodytarget;
2848 thr->errsv = newSVpv("", 0);
2849 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2852 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2853 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2855 PL_reginterp_cnt = 0;
2859 #endif /* USE_THREADS */
2862 call_list(I32 oldscope, AV *paramList)
2865 line_t oldline = PL_curcop->cop_line;
2870 while (AvFILL(paramList) >= 0) {
2871 CV *cv = (CV*)av_shift(paramList);
2879 PUSHMARK(PL_stack_sp);
2880 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2881 (void)SvPV(atsv, len);
2884 PL_curcop = &PL_compiling;
2885 PL_curcop->cop_line = oldline;
2886 if (paramList == PL_beginav)
2887 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2889 sv_catpv(atsv, "END failed--cleanup aborted");
2890 while (PL_scopestack_ix > oldscope)
2892 croak("%s", SvPVX(atsv));
2900 /* my_exit() was called */
2901 while (PL_scopestack_ix > oldscope)
2904 PL_curstash = PL_defstash;
2906 call_list(oldscope, PL_endav);
2908 PL_curcop = &PL_compiling;
2909 PL_curcop->cop_line = oldline;
2910 if (PL_statusvalue) {
2911 if (paramList == PL_beginav)
2912 croak("BEGIN failed--compilation aborted");
2914 croak("END failed--cleanup aborted");
2919 if (!PL_restartop) {
2920 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2925 PL_curcop = &PL_compiling;
2926 PL_curcop->cop_line = oldline;
2938 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2939 thr, (unsigned long) status));
2948 STATUS_NATIVE_SET(status);
2955 my_failure_exit(void)
2958 if (vaxc$errno & 1) {
2959 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2960 STATUS_NATIVE_SET(44);
2963 if (!vaxc$errno && errno) /* unlikely */
2964 STATUS_NATIVE_SET(44);
2966 STATUS_NATIVE_SET(vaxc$errno);
2971 STATUS_POSIX_SET(errno);
2973 exitstatus = STATUS_POSIX >> 8;
2974 if (exitstatus & 255)
2975 STATUS_POSIX_SET(exitstatus);
2977 STATUS_POSIX_SET(255);
2987 register PERL_CONTEXT *cx;
2992 SvREFCNT_dec(PL_e_script);
2993 PL_e_script = Nullsv;
2996 POPSTACK_TO(PL_mainstack);
2997 if (cxstack_ix >= 0) {
3000 POPBLOCK(cx,PL_curpm);
3009 #endif /* PERL_OBJECT */
3015 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3017 read_e_script(int idx, SV *buf_sv, int maxlen)
3021 p = SvPVX(PL_e_script);
3022 nl = strchr(p, '\n');
3023 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3025 filter_del(read_e_script);
3028 sv_catpvn(buf_sv, p, nl-p);
3029 sv_chop(PL_e_script, nl);