3 * Copyright (c) 1987-1998 Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
16 #include "patchlevel.h"
18 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
23 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
24 char *getenv _((char *)); /* Usually in <stdlib.h> */
40 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
47 static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
49 static void find_beginning _((void));
50 static void forbid_setid _((char *));
51 static void incpush _((char *, int));
52 static void init_interp _((void));
53 static void init_ids _((void));
54 static void init_debugger _((void));
55 static void init_lexer _((void));
56 static void init_main_stash _((void));
58 static struct perl_thread * init_main_thread _((void));
59 #endif /* USE_THREADS */
60 static void init_perllib _((void));
61 static void init_postdump_symbols _((int, char **, char **));
62 static void init_predump_symbols _((void));
63 static void my_exit_jump _((void)) __attribute__((noreturn));
64 static void nuke_stacks _((void));
65 static void open_script _((char *, bool, SV *, int *fd));
66 static void usage _((char *));
67 static void validate_suid _((char *, char*, int));
68 static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
72 CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
73 IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
75 CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
85 PerlInterpreter *sv_interp;
88 New(53, sv_interp, 1, PerlInterpreter);
91 #endif /* PERL_OBJECT */
97 perl_construct(register PerlInterpreter *sv_interp)
103 struct perl_thread *thr;
104 #endif /* FAKE_THREADS */
105 #endif /* USE_THREADS */
108 if (!(PL_curinterp = sv_interp))
114 Zero(sv_interp, 1, PerlInterpreter);
117 /* Init the real globals (and main thread)? */
122 #ifdef ALLOC_THREAD_KEY
125 if (pthread_key_create(&PL_thr_key, 0))
126 croak("panic: pthread_key_create");
128 MUTEX_INIT(&PL_sv_mutex);
130 * Safe to use basic SV functions from now on (though
131 * not things like mortals or tainting yet).
133 MUTEX_INIT(&PL_eval_mutex);
134 COND_INIT(&PL_eval_cond);
135 MUTEX_INIT(&PL_threads_mutex);
136 COND_INIT(&PL_nthreads_cond);
137 #ifdef EMULATE_ATOMIC_REFCOUNTS
138 MUTEX_INIT(&PL_svref_mutex);
139 #endif /* EMULATE_ATOMIC_REFCOUNTS */
141 MUTEX_INIT(&PL_cred_mutex);
143 thr = init_main_thread();
144 #endif /* USE_THREADS */
146 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
148 PL_linestr = NEWSV(65,79);
149 sv_upgrade(PL_linestr,SVt_PVIV);
151 if (!SvREADONLY(&PL_sv_undef)) {
152 /* set read-only and try to insure than we wont see REFCNT==0
155 SvREADONLY_on(&PL_sv_undef);
156 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
158 sv_setpv(&PL_sv_no,PL_No);
160 SvREADONLY_on(&PL_sv_no);
161 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
163 sv_setpv(&PL_sv_yes,PL_Yes);
165 SvREADONLY_on(&PL_sv_yes);
166 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
171 /* PL_sighandlerp = sighandler; */
173 PL_sighandlerp = sighandler;
175 PL_pidstatus = newHV();
179 * There is no way we can refer to them from Perl so close them to save
180 * space. The other alternative would be to provide STDAUX and STDPRN
183 (void)fclose(stdaux);
184 (void)fclose(stdprn);
188 PL_nrs = newSVpv("\n", 1);
189 PL_rs = SvREFCNT_inc(PL_nrs);
194 PL_perl_destruct_level = 1;
196 if (PL_perl_destruct_level > 0)
201 PL_lex_state = LEX_NOTPARSING;
203 PL_start_env.je_prev = NULL;
204 PL_start_env.je_ret = -1;
205 PL_start_env.je_mustcatch = TRUE;
206 PL_top_env = &PL_start_env;
209 SET_NUMERIC_STANDARD();
210 #if defined(SUBVERSION) && SUBVERSION > 0
211 sprintf(PL_patchlevel, "%7.5f", (double) 5
212 + ((double) PATCHLEVEL / (double) 1000)
213 + ((double) SUBVERSION / (double) 100000));
215 sprintf(PL_patchlevel, "%5.3f", (double) 5 +
216 ((double) PATCHLEVEL / (double) 1000));
219 #if defined(LOCAL_PATCH_COUNT)
220 PL_localpatches = local_patches; /* For possible -v */
223 PerlIO_init(); /* Hook to IO system */
225 PL_fdpid = newAV(); /* for remembering popen pids by fd */
226 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
229 New(51,PL_debname,128,char);
230 New(52,PL_debdelim,128,char);
240 perl_destruct(register PerlInterpreter *sv_interp)
244 int destruct_level; /* 0=none, 1=full, 2=full with checks */
249 #endif /* USE_THREADS */
252 if (!(PL_curinterp = sv_interp))
258 /* Pass 1 on any remaining threads: detach joinables, join zombies */
260 MUTEX_LOCK(&PL_threads_mutex);
261 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
262 "perl_destruct: waiting for %d threads...\n",
264 for (t = thr->next; t != thr; t = t->next) {
265 MUTEX_LOCK(&t->mutex);
266 switch (ThrSTATE(t)) {
269 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
270 "perl_destruct: joining zombie %p\n", t));
271 ThrSETSTATE(t, THRf_DEAD);
272 MUTEX_UNLOCK(&t->mutex);
275 * The SvREFCNT_dec below may take a long time (e.g. av
276 * may contain an object scalar whose destructor gets
277 * called) so we have to unlock threads_mutex and start
280 MUTEX_UNLOCK(&PL_threads_mutex);
282 SvREFCNT_dec((SV*)av);
283 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
284 "perl_destruct: joined zombie %p OK\n", t));
286 case THRf_R_JOINABLE:
287 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
288 "perl_destruct: detaching thread %p\n", t));
289 ThrSETSTATE(t, THRf_R_DETACHED);
291 * We unlock threads_mutex and t->mutex in the opposite order
292 * from which we locked them just so that DETACH won't
293 * deadlock if it panics. It's only a breach of good style
294 * not a bug since they are unlocks not locks.
296 MUTEX_UNLOCK(&PL_threads_mutex);
298 MUTEX_UNLOCK(&t->mutex);
301 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
302 "perl_destruct: ignoring %p (state %u)\n",
304 MUTEX_UNLOCK(&t->mutex);
305 /* fall through and out */
308 /* We leave the above "Pass 1" loop with threads_mutex still locked */
310 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
311 while (PL_nthreads > 1)
313 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
314 "perl_destruct: final wait for %d threads\n",
316 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
318 /* At this point, we're the last thread */
319 MUTEX_UNLOCK(&PL_threads_mutex);
320 DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
321 MUTEX_DESTROY(&PL_threads_mutex);
322 COND_DESTROY(&PL_nthreads_cond);
323 #endif /* !defined(FAKE_THREADS) */
324 #endif /* USE_THREADS */
326 destruct_level = PL_perl_destruct_level;
330 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
332 if (destruct_level < i)
345 /* We must account for everything. */
347 /* Destroy the main CV and syntax tree */
349 PL_curpad = AvARRAY(PL_comppad);
350 op_free(PL_main_root);
351 PL_main_root = Nullop;
353 PL_curcop = &PL_compiling;
354 PL_main_start = Nullop;
355 SvREFCNT_dec(PL_main_cv);
359 if (PL_sv_objcount) {
361 * Try to destruct global references. We do this first so that the
362 * destructors and destructees still exist. Some sv's might remain.
363 * Non-referenced objects are on their own.
368 /* unhook hooks which will soon be, or use, destroyed data */
369 SvREFCNT_dec(PL_warnhook);
370 PL_warnhook = Nullsv;
371 SvREFCNT_dec(PL_diehook);
373 SvREFCNT_dec(PL_parsehook);
374 PL_parsehook = Nullsv;
376 /* call exit list functions */
377 while (PL_exitlistlen-- > 0)
378 PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
380 Safefree(PL_exitlist);
382 if (destruct_level == 0){
384 DEBUG_P(debprofdump());
386 /* The exit() function will do everything that needs doing. */
390 /* loosen bonds of global variables */
393 (void)PerlIO_close(PL_rsfp);
397 /* Filters for program text */
398 SvREFCNT_dec(PL_rsfp_filters);
399 PL_rsfp_filters = Nullav;
402 PL_preprocess = FALSE;
408 PL_doswitches = FALSE;
409 PL_dowarn = G_WARN_OFF;
410 PL_doextract = FALSE;
411 PL_sawampersand = FALSE; /* must save all match strings */
412 PL_sawstudy = FALSE; /* do fbm_instr on all strings */
416 Safefree(PL_inplace);
420 SvREFCNT_dec(PL_e_script);
421 PL_e_script = Nullsv;
424 /* magical thingies */
426 Safefree(PL_ofs); /* $, */
429 Safefree(PL_ors); /* $\ */
432 SvREFCNT_dec(PL_rs); /* $/ */
435 SvREFCNT_dec(PL_nrs); /* $/ helper */
438 PL_multiline = 0; /* $* */
440 SvREFCNT_dec(PL_statname);
441 PL_statname = Nullsv;
444 /* defgv, aka *_ should be taken care of elsewhere */
446 /* clean up after study() */
447 SvREFCNT_dec(PL_lastscream);
448 PL_lastscream = Nullsv;
449 Safefree(PL_screamfirst);
451 Safefree(PL_screamnext);
454 /* startup and shutdown function lists */
455 SvREFCNT_dec(PL_beginav);
456 SvREFCNT_dec(PL_endav);
457 SvREFCNT_dec(PL_initav);
462 /* shortcuts just get cleared */
469 PL_argvoutgv = Nullgv;
471 PL_last_in_gv = Nullgv;
474 /* reset so print() ends up where we expect */
477 /* Prepare to destruct main symbol table. */
484 if (destruct_level >= 2) {
485 if (PL_scopestack_ix != 0)
486 warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
487 (long)PL_scopestack_ix);
488 if (PL_savestack_ix != 0)
489 warn("Unbalanced saves: %ld more saves than restores\n",
490 (long)PL_savestack_ix);
491 if (PL_tmps_floor != -1)
492 warn("Unbalanced tmps: %ld more allocs than frees\n",
493 (long)PL_tmps_floor + 1);
494 if (cxstack_ix != -1)
495 warn("Unbalanced context: %ld more PUSHes than POPs\n",
496 (long)cxstack_ix + 1);
499 /* Now absolutely destruct everything, somehow or other, loops or no. */
501 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
502 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
503 last_sv_count = PL_sv_count;
506 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
507 SvFLAGS(PL_strtab) |= SVt_PVHV;
509 /* Destruct the global string table. */
511 /* Yell and reset the HeVAL() slots that are still holding refcounts,
512 * so that sv_free() won't fail on them.
520 max = HvMAX(PL_strtab);
521 array = HvARRAY(PL_strtab);
525 warn("Unbalanced string table refcount: (%d) for \"%s\"",
526 HeVAL(hent) - Nullsv, HeKEY(hent));
527 HeVAL(hent) = Nullsv;
537 SvREFCNT_dec(PL_strtab);
539 if (PL_sv_count != 0)
540 warn("Scalars leaked: %ld\n", (long)PL_sv_count);
544 /* No SVs have survived, need to clean out */
546 PL_pidstatus = Nullhv;
547 Safefree(PL_origfilename);
548 Safefree(PL_archpat_auto);
549 Safefree(PL_reg_start_tmp);
551 Safefree(PL_reg_curpm);
552 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
553 Safefree(PL_op_mask);
555 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
557 DEBUG_P(debprofdump());
559 MUTEX_DESTROY(&PL_strtab_mutex);
560 MUTEX_DESTROY(&PL_sv_mutex);
561 MUTEX_DESTROY(&PL_eval_mutex);
562 MUTEX_DESTROY(&PL_cred_mutex);
563 COND_DESTROY(&PL_eval_cond);
565 /* As the penultimate thing, free the non-arena SV for thrsv */
566 Safefree(SvPVX(PL_thrsv));
567 Safefree(SvANY(PL_thrsv));
570 #endif /* USE_THREADS */
572 /* As the absolutely last thing, free the non-arena SV for mess() */
575 /* it could have accumulated taint magic */
576 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
579 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
580 moremagic = mg->mg_moremagic;
581 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
582 Safefree(mg->mg_ptr);
586 /* we know that type >= SVt_PV */
587 SvOOK_off(PL_mess_sv);
588 Safefree(SvPVX(PL_mess_sv));
589 Safefree(SvANY(PL_mess_sv));
590 Safefree(PL_mess_sv);
599 perl_free(PerlInterpreter *sv_interp)
605 if (!(PL_curinterp = sv_interp))
613 perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
615 perl_atexit(void (*fn) (void *), void *ptr)
618 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
619 PL_exitlist[PL_exitlistlen].fn = fn;
620 PL_exitlist[PL_exitlistlen].ptr = ptr;
626 perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
628 perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
634 char *scriptname = NULL;
635 VOL bool dosearch = FALSE;
643 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
646 croak("suidperl is no longer needed since the kernel can now execute\n\
647 setuid perl scripts securely.\n");
652 if (!(PL_curinterp = sv_interp))
656 #if defined(NeXT) && defined(__DYNAMIC__)
657 _dyld_lookup_and_bind
658 ("__environ", (unsigned long *) &environ_pointer, NULL);
663 #ifndef VMS /* VMS doesn't have environ array */
664 PL_origenviron = environ;
669 /* Come here if running an undumped a.out. */
671 PL_origfilename = savepv(argv[0]);
672 PL_do_undump = FALSE;
673 cxstack_ix = -1; /* start label stack again */
675 init_postdump_symbols(argc,argv,env);
680 PL_curpad = AvARRAY(PL_comppad);
681 op_free(PL_main_root);
682 PL_main_root = Nullop;
684 PL_main_start = Nullop;
685 SvREFCNT_dec(PL_main_cv);
689 oldscope = PL_scopestack_ix;
690 PL_dowarn = G_WARN_OFF;
698 /* my_exit() was called */
699 while (PL_scopestack_ix > oldscope)
702 PL_curstash = PL_defstash;
704 call_list(oldscope, PL_endav);
706 return STATUS_NATIVE_EXPORT;
709 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
713 sv_setpvn(PL_linestr,"",0);
714 sv = newSVpv("",0); /* first used for -I flags */
718 for (argc--,argv++; argc > 0; argc--,argv++) {
719 if (argv[0][0] != '-' || !argv[0][1])
723 validarg = " PHOOEY ";
751 if (s = moreswitches(s))
761 if (PL_euid != PL_uid || PL_egid != PL_gid)
762 croak("No -e allowed in setuid scripts");
764 PL_e_script = newSVpv("",0);
765 filter_add(read_e_script, NULL);
768 sv_catpv(PL_e_script, s);
770 sv_catpv(PL_e_script, argv[1]);
774 croak("No code specified for -e");
775 sv_catpv(PL_e_script, "\n");
778 case 'I': /* -I handled both here and in moreswitches() */
780 if (!*++s && (s=argv[1]) != Nullch) {
783 while (s && isSPACE(*s))
787 for (e = s; *e && !isSPACE(*e); e++) ;
794 } /* XXX else croak? */
798 PL_preprocess = TRUE;
808 PL_preambleav = newAV();
809 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
811 PL_Sv = newSVpv("print myconfig();",0);
813 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
815 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
817 #if defined(DEBUGGING) || defined(MULTIPLICITY)
818 sv_catpv(PL_Sv,"\" Compile-time options:");
820 sv_catpv(PL_Sv," DEBUGGING");
823 sv_catpv(PL_Sv," MULTIPLICITY");
825 sv_catpv(PL_Sv,"\\n\",");
827 #if defined(LOCAL_PATCH_COUNT)
828 if (LOCAL_PATCH_COUNT > 0) {
830 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
831 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
832 if (PL_localpatches[i])
833 sv_catpvf(PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
837 sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME);
840 sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
842 sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
847 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
848 print \" \\%ENV:\\n @env\\n\" if @env; \
849 print \" \\@INC:\\n @INC\\n\";");
852 PL_Sv = newSVpv("config_vars(qw(",0);
853 sv_catpv(PL_Sv, ++s);
854 sv_catpv(PL_Sv, "))");
857 av_push(PL_preambleav, PL_Sv);
858 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
864 PL_cddir = savepv(s);
869 if (!*++s || isSPACE(*s)) {
873 /* catch use of gnu style long options */
874 if (strEQ(s, "version")) {
878 if (strEQ(s, "help")) {
885 croak("Unrecognized switch: -%s (-h will show valid options)",s);
890 if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) {
901 if (!strchr("DIMUdmw", *s))
902 croak("Illegal switch in PERL5OPT: -%c", *s);
908 scriptname = argv[0];
911 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
913 else if (scriptname == Nullch) {
915 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
923 open_script(scriptname,dosearch,sv,&fdscript);
925 validate_suid(validarg, scriptname,fdscript);
930 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
931 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
932 CvUNIQUE_on(PL_compcv);
934 PL_comppad = newAV();
935 av_push(PL_comppad, Nullsv);
936 PL_curpad = AvARRAY(PL_comppad);
937 PL_comppad_name = newAV();
938 PL_comppad_name_fill = 0;
939 PL_min_intro_pending = 0;
942 av_store(PL_comppad_name, 0, newSVpv("@_", 2));
943 PL_curpad[0] = (SV*)newAV();
944 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
945 CvOWNER(PL_compcv) = 0;
946 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
947 MUTEX_INIT(CvMUTEXP(PL_compcv));
948 #endif /* USE_THREADS */
950 comppadlist = newAV();
951 AvREAL_off(comppadlist);
952 av_store(comppadlist, 0, (SV*)PL_comppad_name);
953 av_store(comppadlist, 1, (SV*)PL_comppad);
954 CvPADLIST(PL_compcv) = comppadlist;
956 boot_core_UNIVERSAL();
959 (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */
960 #if defined(VMS) || defined(WIN32) || defined(DJGPP)
964 init_predump_symbols();
965 /* init_postdump_symbols not currently designed to be called */
966 /* more than once (ENV isn't cleared first, for example) */
967 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
969 init_postdump_symbols(argc,argv,env);
973 /* now parse the script */
975 SETERRNO(0,SS$_NORMAL);
977 if (yyparse() || PL_error_count) {
979 croak("%s had compilation errors.\n", PL_origfilename);
981 croak("Execution of %s aborted due to compilation errors.\n",
985 PL_curcop->cop_line = 0;
986 PL_curstash = PL_defstash;
987 PL_preprocess = FALSE;
989 SvREFCNT_dec(PL_e_script);
990 PL_e_script = Nullsv;
993 /* now that script is parsed, we can modify record separator */
995 PL_rs = SvREFCNT_inc(PL_nrs);
996 sv_setsv(perl_get_sv("/", TRUE), PL_rs);
1000 if (ckWARN(WARN_ONCE))
1001 gv_check(PL_defstash);
1007 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1008 dump_mstats("after compilation:");
1021 perl_run(PerlInterpreter *sv_interp)
1030 if (!(PL_curinterp = sv_interp))
1034 oldscope = PL_scopestack_ix;
1039 cxstack_ix = -1; /* start context stack again */
1042 /* my_exit() was called */
1043 while (PL_scopestack_ix > oldscope)
1046 PL_curstash = PL_defstash;
1048 call_list(oldscope, PL_endav);
1050 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1051 dump_mstats("after execution: ");
1054 return STATUS_NATIVE_EXPORT;
1056 if (!PL_restartop) {
1057 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
1062 POPSTACK_TO(PL_mainstack);
1066 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1067 PL_sawampersand ? "Enabling" : "Omitting"));
1069 if (!PL_restartop) {
1070 DEBUG_x(dump_all());
1071 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1072 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n",
1073 (unsigned long) thr));
1076 PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename);
1079 if (PERLDB_SINGLE && PL_DBsingle)
1080 sv_setiv(PL_DBsingle, 1);
1082 call_list(oldscope, PL_initav);
1088 PL_op = PL_restartop;
1092 else if (PL_main_start) {
1093 CvDEPTH(PL_main_cv) = 1;
1094 PL_op = PL_main_start;
1104 perl_get_sv(char *name, I32 create)
1108 if (name[1] == '\0' && !isALPHA(name[0])) {
1109 PADOFFSET tmp = find_threadsv(name);
1110 if (tmp != NOT_IN_PAD) {
1112 return THREADSV(tmp);
1115 #endif /* USE_THREADS */
1116 gv = gv_fetchpv(name, create, SVt_PV);
1123 perl_get_av(char *name, I32 create)
1125 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1134 perl_get_hv(char *name, I32 create)
1136 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1145 perl_get_cv(char *name, I32 create)
1147 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1148 /* XXX unsafe for threads if eval_owner isn't held */
1149 if (create && !GvCVu(gv))
1150 return newSUB(start_subparse(FALSE, 0),
1151 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1159 /* Be sure to refetch the stack pointer after calling these routines. */
1162 perl_call_argv(char *sub_name, I32 flags, register char **argv)
1164 /* See G_* flags in cop.h */
1165 /* null terminated arg list */
1172 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1177 return perl_call_pv(sub_name, flags);
1181 perl_call_pv(char *sub_name, I32 flags)
1182 /* name of the subroutine */
1183 /* See G_* flags in cop.h */
1185 return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
1189 perl_call_method(char *methname, I32 flags)
1190 /* name of the subroutine */
1191 /* See G_* flags in cop.h */
1197 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1202 return perl_call_sv(*PL_stack_sp--, flags);
1205 /* May be called with any of a CV, a GV, or an SV containing the name. */
1207 perl_call_sv(SV *sv, I32 flags)
1209 /* See G_* flags in cop.h */
1212 LOGOP myop; /* fake syntax tree node */
1216 bool oldcatch = CATCH_GET;
1221 if (flags & G_DISCARD) {
1226 Zero(&myop, 1, LOGOP);
1227 myop.op_next = Nullop;
1228 if (!(flags & G_NOARGS))
1229 myop.op_flags |= OPf_STACKED;
1230 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1231 (flags & G_ARRAY) ? OPf_WANT_LIST :
1236 EXTEND(PL_stack_sp, 1);
1237 *++PL_stack_sp = sv;
1239 oldscope = PL_scopestack_ix;
1241 if (PERLDB_SUB && PL_curstash != PL_debstash
1242 /* Handle first BEGIN of -d. */
1243 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1244 /* Try harder, since this may have been a sighandler, thus
1245 * curstash may be meaningless. */
1246 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1247 && !(flags & G_NODEBUG))
1248 PL_op->op_private |= OPpENTERSUB_DB;
1250 if (flags & G_EVAL) {
1251 cLOGOP->op_other = PL_op;
1253 /* we're trying to emulate pp_entertry() here */
1255 register PERL_CONTEXT *cx;
1256 I32 gimme = GIMME_V;
1261 push_return(PL_op->op_next);
1262 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1264 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1267 if (flags & G_KEEPERR)
1282 /* my_exit() was called */
1283 PL_curstash = PL_defstash;
1287 croak("Callback called exit");
1292 PL_op = PL_restartop;
1296 PL_stack_sp = PL_stack_base + oldmark;
1297 if (flags & G_ARRAY)
1301 *++PL_stack_sp = &PL_sv_undef;
1309 if (PL_op == (OP*)&myop)
1310 PL_op = pp_entersub(ARGS);
1313 retval = PL_stack_sp - (PL_stack_base + oldmark);
1314 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1318 if (flags & G_EVAL) {
1319 if (PL_scopestack_ix > oldscope) {
1323 register PERL_CONTEXT *cx;
1335 CATCH_SET(oldcatch);
1337 if (flags & G_DISCARD) {
1338 PL_stack_sp = PL_stack_base + oldmark;
1347 /* Eval a string. The G_EVAL flag is always assumed. */
1350 perl_eval_sv(SV *sv, I32 flags)
1352 /* See G_* flags in cop.h */
1355 UNOP myop; /* fake syntax tree node */
1356 I32 oldmark = SP - PL_stack_base;
1363 if (flags & G_DISCARD) {
1370 Zero(PL_op, 1, UNOP);
1371 EXTEND(PL_stack_sp, 1);
1372 *++PL_stack_sp = sv;
1373 oldscope = PL_scopestack_ix;
1375 if (!(flags & G_NOARGS))
1376 myop.op_flags = OPf_STACKED;
1377 myop.op_next = Nullop;
1378 myop.op_type = OP_ENTEREVAL;
1379 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1380 (flags & G_ARRAY) ? OPf_WANT_LIST :
1382 if (flags & G_KEEPERR)
1383 myop.op_flags |= OPf_SPECIAL;
1393 /* my_exit() was called */
1394 PL_curstash = PL_defstash;
1398 croak("Callback called exit");
1403 PL_op = PL_restartop;
1407 PL_stack_sp = PL_stack_base + oldmark;
1408 if (flags & G_ARRAY)
1412 *++PL_stack_sp = &PL_sv_undef;
1417 if (PL_op == (OP*)&myop)
1418 PL_op = pp_entereval(ARGS);
1421 retval = PL_stack_sp - (PL_stack_base + oldmark);
1422 if (!(flags & G_KEEPERR))
1427 if (flags & G_DISCARD) {
1428 PL_stack_sp = PL_stack_base + oldmark;
1438 perl_eval_pv(char *p, I32 croak_on_error)
1441 SV* sv = newSVpv(p, 0);
1444 perl_eval_sv(sv, G_SCALAR);
1451 if (croak_on_error && SvTRUE(ERRSV)) {
1453 croak(SvPVx(ERRSV, n_a));
1459 /* Require a module. */
1462 perl_require_pv(char *pv)
1466 PUSHSTACKi(PERLSI_REQUIRE);
1468 sv = sv_newmortal();
1469 sv_setpv(sv, "require '");
1472 perl_eval_sv(sv, G_DISCARD);
1478 magicname(char *sym, char *name, I32 namlen)
1482 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1483 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1487 usage(char *name) /* XXX move this out into a module ? */
1490 /* This message really ought to be max 23 lines.
1491 * Removed -h because the user already knows that opton. Others? */
1493 static char *usage_msg[] = {
1494 "-0[octal] specify record separator (\\0, if no argument)",
1495 "-a autosplit mode with -n or -p (splits $_ into @F)",
1496 "-c check syntax only (runs BEGIN and END blocks)",
1497 "-d[:debugger] run scripts under debugger",
1498 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1499 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1500 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1501 "-i[extension] edit <> files in place (make backup if extension supplied)",
1502 "-Idirectory specify @INC/#include directory (may be used more than once)",
1503 "-l[octal] enable line ending processing, specifies line terminator",
1504 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1505 "-n assume 'while (<>) { ... }' loop around your script",
1506 "-p assume loop like -n but print line also like sed",
1507 "-P run script through C preprocessor before compilation",
1508 "-s enable some switch parsing for switches after script name",
1509 "-S look for the script using PATH environment variable",
1510 "-T turn on tainting checks",
1511 "-u dump core after parsing script",
1512 "-U allow unsafe operations",
1513 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1514 "-V[:variable] print perl configuration information",
1515 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1516 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1520 char **p = usage_msg;
1522 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1524 printf("\n %s", *p++);
1527 /* This routine handles any switches that can be given during run */
1530 moreswitches(char *s)
1539 rschar = scan_oct(s, 4, &numlen);
1540 SvREFCNT_dec(PL_nrs);
1541 if (rschar & ~((U8)~0))
1542 PL_nrs = &PL_sv_undef;
1543 else if (!rschar && numlen >= 2)
1544 PL_nrs = newSVpv("", 0);
1547 PL_nrs = newSVpv(&ch, 1);
1553 PL_splitstr = savepv(s + 1);
1567 if (*s == ':' || *s == '=') {
1568 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1572 PL_perldb = PERLDB_ALL;
1579 if (isALPHA(s[1])) {
1580 static char debopts[] = "psltocPmfrxuLHXDS";
1583 for (s++; *s && (d = strchr(debopts,*s)); s++)
1584 PL_debug |= 1 << (d - debopts);
1587 PL_debug = atoi(s+1);
1588 for (s++; isDIGIT(*s); s++) ;
1590 PL_debug |= 0x80000000;
1592 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1593 for (s++; isALNUM(*s); s++) ;
1598 usage(PL_origargv[0]);
1602 Safefree(PL_inplace);
1603 PL_inplace = savepv(s+1);
1605 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1608 if (*s == '-') /* Additional switches on #! line. */
1612 case 'I': /* -I handled both here and in parse_perl() */
1615 while (*s && isSPACE(*s))
1619 for (e = s; *e && !isSPACE(*e); e++) ;
1620 p = savepvn(s, e-s);
1626 croak("No space allowed after -I");
1634 PL_ors = savepv("\n");
1636 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1641 if (RsPARA(PL_nrs)) {
1646 PL_ors = SvPV(PL_nrs, PL_orslen);
1647 PL_ors = savepvn(PL_ors, PL_orslen);
1651 forbid_setid("-M"); /* XXX ? */
1654 forbid_setid("-m"); /* XXX ? */
1659 /* -M-foo == 'no foo' */
1660 if (*s == '-') { use = "no "; ++s; }
1661 sv = newSVpv(use,0);
1663 /* We allow -M'Module qw(Foo Bar)' */
1664 while(isALNUM(*s) || *s==':') ++s;
1666 sv_catpv(sv, start);
1667 if (*(start-1) == 'm') {
1669 croak("Can't use '%c' after -mname", *s);
1670 sv_catpv( sv, " ()");
1673 sv_catpvn(sv, start, s-start);
1674 sv_catpv(sv, " split(/,/,q{");
1679 if (PL_preambleav == NULL)
1680 PL_preambleav = newAV();
1681 av_push(PL_preambleav, sv);
1684 croak("No space allowed after -%c", *(s-1));
1696 PL_doswitches = TRUE;
1701 croak("Too late for \"-T\" option");
1705 PL_do_undump = TRUE;
1713 #if defined(SUBVERSION) && SUBVERSION > 0
1714 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1715 PATCHLEVEL, SUBVERSION, ARCHNAME);
1717 printf("\nThis is perl, version %s built for %s",
1718 PL_patchlevel, ARCHNAME);
1720 #if defined(LOCAL_PATCH_COUNT)
1721 if (LOCAL_PATCH_COUNT > 0)
1722 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1723 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1726 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1728 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1731 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1732 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1735 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1736 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1739 printf("atariST series port, ++jrb bammi@cadence.com\n");
1742 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1745 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1748 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
1751 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n");
1754 printf("VM/ESA port by Neale Ferguson, 1998\n");
1757 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n");
1760 printf("MiNT port by Guido Flohr, 1997\n");
1762 #ifdef BINARY_BUILD_NOTICE
1763 BINARY_BUILD_NOTICE;
1766 Perl may be copied only under the terms of either the Artistic License or the\n\
1767 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1768 Complete documentation for Perl, including FAQ lists, should be found on\n\
1769 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1770 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1773 if (! (PL_dowarn & G_WARN_ALL_MASK))
1774 PL_dowarn |= G_WARN_ON;
1778 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1779 PL_compiling.cop_warnings = WARN_ALL ;
1783 PL_dowarn = G_WARN_ALL_OFF;
1784 PL_compiling.cop_warnings = WARN_NONE ;
1789 if (s[1] == '-') /* Additional switches on #! line. */
1794 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1800 #ifdef ALTERNATE_SHEBANG
1801 case 'S': /* OS/2 needs -S on "extproc" line. */
1809 croak("Can't emulate -%.1s on #! line",s);
1814 /* compliments of Tom Christiansen */
1816 /* unexec() can be found in the Gnu emacs distribution */
1817 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1828 prog = newSVpv(BIN_EXP, 0);
1829 sv_catpv(prog, "/perl");
1830 file = newSVpv(PL_origfilename, 0);
1831 sv_catpv(file, ".perldump");
1833 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1834 /* unexec prints msg to stderr in case of failure */
1835 PerlProc_exit(status);
1838 # include <lib$routines.h>
1839 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1841 ABORT(); /* for use with undump */
1846 /* initialize curinterp */
1851 #ifdef PERL_OBJECT /* XXX kludge */
1854 PL_chopset = " \n-"; \
1855 PL_copline = NOLINE; \
1856 PL_curcop = &PL_compiling;\
1857 PL_curcopdb = NULL; \
1860 PL_dumpindent = 4; \
1861 PL_laststatval = -1; \
1862 PL_laststype = OP_STAT; \
1863 PL_maxscream = -1; \
1864 PL_maxsysfd = MAXSYSFD; \
1865 PL_statname = Nullsv; \
1866 PL_tmps_floor = -1; \
1868 PL_op_mask = NULL; \
1870 PL_laststatval = -1; \
1871 PL_laststype = OP_STAT; \
1872 PL_mess_sv = Nullsv; \
1873 PL_splitstr = " "; \
1874 PL_generation = 100; \
1875 PL_exitlist = NULL; \
1876 PL_exitlistlen = 0; \
1878 PL_in_clean_objs = FALSE; \
1879 PL_in_clean_all = FALSE; \
1880 PL_profiledata = NULL; \
1882 PL_rsfp_filters = Nullav; \
1887 # ifdef MULTIPLICITY
1888 # define PERLVAR(var,type)
1889 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1890 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1891 # include "intrpvar.h"
1892 # ifndef USE_THREADS
1893 # include "thrdvar.h"
1899 # define PERLVAR(var,type)
1900 # define PERLVARI(var,type,init) PL_##var = init;
1901 # define PERLVARIC(var,type,init) PL_##var = init;
1902 # include "intrpvar.h"
1903 # ifndef USE_THREADS
1904 # include "thrdvar.h"
1915 init_main_stash(void)
1920 /* Note that strtab is a rather special HV. Assumptions are made
1921 about not iterating on it, and not adding tie magic to it.
1922 It is properly deallocated in perl_destruct() */
1923 PL_strtab = newHV();
1925 MUTEX_INIT(&PL_strtab_mutex);
1927 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1928 hv_ksplit(PL_strtab, 512);
1930 PL_curstash = PL_defstash = newHV();
1931 PL_curstname = newSVpv("main",4);
1932 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1933 SvREFCNT_dec(GvHV(gv));
1934 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1936 HvNAME(PL_defstash) = savepv("main");
1937 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1938 GvMULTI_on(PL_incgv);
1939 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1940 GvMULTI_on(PL_hintgv);
1941 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1942 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1943 GvMULTI_on(PL_errgv);
1944 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1945 GvMULTI_on(PL_replgv);
1946 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1947 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1948 sv_setpvn(ERRSV, "", 0);
1949 PL_curstash = PL_defstash;
1950 PL_compiling.cop_stash = PL_defstash;
1951 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1952 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1953 /* We must init $/ before switches are processed. */
1954 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1958 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1966 PL_origfilename = savepv("-e");
1969 /* if find_script() returns, it returns a malloc()-ed value */
1970 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1972 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1973 char *s = scriptname + 8;
1974 *fdscript = atoi(s);
1978 scriptname = savepv(s + 1);
1979 Safefree(PL_origfilename);
1980 PL_origfilename = scriptname;
1985 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1986 if (strEQ(PL_origfilename,"-"))
1988 if (*fdscript >= 0) {
1989 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1990 #if defined(HAS_FCNTL) && defined(F_SETFD)
1992 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1995 else if (PL_preprocess) {
1996 char *cpp_cfg = CPPSTDIN;
1997 SV *cpp = newSVpv("",0);
1998 SV *cmd = NEWSV(0,0);
2000 if (strEQ(cpp_cfg, "cppstdin"))
2001 sv_catpvf(cpp, "%s/", BIN_EXP);
2002 sv_catpv(cpp, cpp_cfg);
2005 sv_catpv(sv,PRIVLIB_EXP);
2009 sed %s -e \"/^[^#]/b\" \
2010 -e \"/^#[ ]*include[ ]/b\" \
2011 -e \"/^#[ ]*define[ ]/b\" \
2012 -e \"/^#[ ]*if[ ]/b\" \
2013 -e \"/^#[ ]*ifdef[ ]/b\" \
2014 -e \"/^#[ ]*ifndef[ ]/b\" \
2015 -e \"/^#[ ]*else/b\" \
2016 -e \"/^#[ ]*elif[ ]/b\" \
2017 -e \"/^#[ ]*undef[ ]/b\" \
2018 -e \"/^#[ ]*endif/b\" \
2021 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2025 %s %s -e '/^[^#]/b' \
2026 -e '/^#[ ]*include[ ]/b' \
2027 -e '/^#[ ]*define[ ]/b' \
2028 -e '/^#[ ]*if[ ]/b' \
2029 -e '/^#[ ]*ifdef[ ]/b' \
2030 -e '/^#[ ]*ifndef[ ]/b' \
2031 -e '/^#[ ]*else/b' \
2032 -e '/^#[ ]*elif[ ]/b' \
2033 -e '/^#[ ]*undef[ ]/b' \
2034 -e '/^#[ ]*endif/b' \
2039 %s %s -e '/^[^#]/b' \
2040 -e '/^#[ ]*include[ ]/b' \
2041 -e '/^#[ ]*define[ ]/b' \
2042 -e '/^#[ ]*if[ ]/b' \
2043 -e '/^#[ ]*ifdef[ ]/b' \
2044 -e '/^#[ ]*ifndef[ ]/b' \
2045 -e '/^#[ ]*else/b' \
2046 -e '/^#[ ]*elif[ ]/b' \
2047 -e '/^#[ ]*undef[ ]/b' \
2048 -e '/^#[ ]*endif/b' \
2057 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2059 scriptname, cpp, sv, CPPMINUS);
2060 PL_doextract = FALSE;
2061 #ifdef IAMSUID /* actually, this is caught earlier */
2062 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2064 (void)seteuid(PL_uid); /* musn't stay setuid root */
2067 (void)setreuid((Uid_t)-1, PL_uid);
2069 #ifdef HAS_SETRESUID
2070 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2072 PerlProc_setuid(PL_uid);
2076 if (PerlProc_geteuid() != PL_uid)
2077 croak("Can't do seteuid!\n");
2079 #endif /* IAMSUID */
2080 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2084 else if (!*scriptname) {
2085 forbid_setid("program input from stdin");
2086 PL_rsfp = PerlIO_stdin();
2089 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2090 #if defined(HAS_FCNTL) && defined(F_SETFD)
2092 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2097 #ifndef IAMSUID /* in case script is not readable before setuid */
2099 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2100 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2103 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2104 croak("Can't do setuid\n");
2108 croak("Can't open perl script \"%s\": %s\n",
2109 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2114 validate_suid(char *validarg, char *scriptname, int fdscript)
2118 /* do we need to emulate setuid on scripts? */
2120 /* This code is for those BSD systems that have setuid #! scripts disabled
2121 * in the kernel because of a security problem. Merely defining DOSUID
2122 * in perl will not fix that problem, but if you have disabled setuid
2123 * scripts in the kernel, this will attempt to emulate setuid and setgid
2124 * on scripts that have those now-otherwise-useless bits set. The setuid
2125 * root version must be called suidperl or sperlN.NNN. If regular perl
2126 * discovers that it has opened a setuid script, it calls suidperl with
2127 * the same argv that it had. If suidperl finds that the script it has
2128 * just opened is NOT setuid root, it sets the effective uid back to the
2129 * uid. We don't just make perl setuid root because that loses the
2130 * effective uid we had before invoking perl, if it was different from the
2133 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2134 * be defined in suidperl only. suidperl must be setuid root. The
2135 * Configure script will set this up for you if you want it.
2142 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2143 croak("Can't stat script \"%s\"",PL_origfilename);
2144 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2149 #ifndef HAS_SETREUID
2150 /* On this access check to make sure the directories are readable,
2151 * there is actually a small window that the user could use to make
2152 * filename point to an accessible directory. So there is a faint
2153 * chance that someone could execute a setuid script down in a
2154 * non-accessible directory. I don't know what to do about that.
2155 * But I don't think it's too important. The manual lies when
2156 * it says access() is useful in setuid programs.
2158 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2159 croak("Permission denied");
2161 /* If we can swap euid and uid, then we can determine access rights
2162 * with a simple stat of the file, and then compare device and
2163 * inode to make sure we did stat() on the same file we opened.
2164 * Then we just have to make sure he or she can execute it.
2167 struct stat tmpstatbuf;
2171 setreuid(PL_euid,PL_uid) < 0
2174 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2177 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2178 croak("Can't swap uid and euid"); /* really paranoid */
2179 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2180 croak("Permission denied"); /* testing full pathname here */
2181 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2182 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2183 (void)PerlIO_close(PL_rsfp);
2184 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2185 PerlIO_printf(PL_rsfp,
2186 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2187 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2188 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2189 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2190 SvPVX(GvSV(PL_curcop->cop_filegv)),
2191 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2192 (void)PerlProc_pclose(PL_rsfp);
2194 croak("Permission denied\n");
2198 setreuid(PL_uid,PL_euid) < 0
2200 # if defined(HAS_SETRESUID)
2201 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2204 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2205 croak("Can't reswap uid and euid");
2206 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2207 croak("Permission denied\n");
2209 #endif /* HAS_SETREUID */
2210 #endif /* IAMSUID */
2212 if (!S_ISREG(PL_statbuf.st_mode))
2213 croak("Permission denied");
2214 if (PL_statbuf.st_mode & S_IWOTH)
2215 croak("Setuid/gid script is writable by world");
2216 PL_doswitches = FALSE; /* -s is insecure in suid */
2217 PL_curcop->cop_line++;
2218 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2219 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
2220 croak("No #! line");
2221 s = SvPV(PL_linestr,n_a)+2;
2223 while (!isSPACE(*s)) s++;
2224 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
2225 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2226 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2227 croak("Not a perl script");
2228 while (*s == ' ' || *s == '\t') s++;
2230 * #! arg must be what we saw above. They can invoke it by
2231 * mentioning suidperl explicitly, but they may not add any strange
2232 * arguments beyond what #! says if they do invoke suidperl that way.
2234 len = strlen(validarg);
2235 if (strEQ(validarg," PHOOEY ") ||
2236 strnNE(s,validarg,len) || !isSPACE(s[len]))
2237 croak("Args must match #! line");
2240 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2241 PL_euid == PL_statbuf.st_uid)
2243 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2244 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2245 #endif /* IAMSUID */
2247 if (PL_euid) { /* oops, we're not the setuid root perl */
2248 (void)PerlIO_close(PL_rsfp);
2251 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2253 croak("Can't do setuid\n");
2256 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2258 (void)setegid(PL_statbuf.st_gid);
2261 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2263 #ifdef HAS_SETRESGID
2264 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2266 PerlProc_setgid(PL_statbuf.st_gid);
2270 if (PerlProc_getegid() != PL_statbuf.st_gid)
2271 croak("Can't do setegid!\n");
2273 if (PL_statbuf.st_mode & S_ISUID) {
2274 if (PL_statbuf.st_uid != PL_euid)
2276 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2279 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2281 #ifdef HAS_SETRESUID
2282 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2284 PerlProc_setuid(PL_statbuf.st_uid);
2288 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2289 croak("Can't do seteuid!\n");
2291 else if (PL_uid) { /* oops, mustn't run as root */
2293 (void)seteuid((Uid_t)PL_uid);
2296 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2298 #ifdef HAS_SETRESUID
2299 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2301 PerlProc_setuid((Uid_t)PL_uid);
2305 if (PerlProc_geteuid() != PL_uid)
2306 croak("Can't do seteuid!\n");
2309 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2310 croak("Permission denied\n"); /* they can't do this */
2313 else if (PL_preprocess)
2314 croak("-P not allowed for setuid/setgid script\n");
2315 else if (fdscript >= 0)
2316 croak("fd script not allowed in suidperl\n");
2318 croak("Script is not setuid/setgid in suidperl\n");
2320 /* We absolutely must clear out any saved ids here, so we */
2321 /* exec the real perl, substituting fd script for scriptname. */
2322 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2323 PerlIO_rewind(PL_rsfp);
2324 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2325 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2326 if (!PL_origargv[which])
2327 croak("Permission denied");
2328 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2329 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2330 #if defined(HAS_FCNTL) && defined(F_SETFD)
2331 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2333 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2334 croak("Can't do setuid\n");
2335 #endif /* IAMSUID */
2337 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2338 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2340 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2341 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2343 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2346 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2347 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2348 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2349 /* not set-id, must be wrapped */
2355 find_beginning(void)
2357 register char *s, *s2;
2359 /* skip forward in input to the real script? */
2362 while (PL_doextract) {
2363 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2364 croak("No Perl script found in input\n");
2365 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2366 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2367 PL_doextract = FALSE;
2368 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2370 while (*s == ' ' || *s == '\t') s++;
2372 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2373 if (strnEQ(s2-4,"perl",4))
2375 while (s = moreswitches(s)) ;
2377 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2378 croak("Can't chdir to %s",PL_cddir);
2387 PL_uid = (int)PerlProc_getuid();
2388 PL_euid = (int)PerlProc_geteuid();
2389 PL_gid = (int)PerlProc_getgid();
2390 PL_egid = (int)PerlProc_getegid();
2392 PL_uid |= PL_gid << 16;
2393 PL_euid |= PL_egid << 16;
2395 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2399 forbid_setid(char *s)
2401 if (PL_euid != PL_uid)
2402 croak("No %s allowed while running setuid", s);
2403 if (PL_egid != PL_gid)
2404 croak("No %s allowed while running setgid", s);
2411 PL_curstash = PL_debstash;
2412 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2413 AvREAL_off(PL_dbargs);
2414 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2415 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2416 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2417 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2418 sv_setiv(PL_DBsingle, 0);
2419 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2420 sv_setiv(PL_DBtrace, 0);
2421 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2422 sv_setiv(PL_DBsignal, 0);
2423 PL_curstash = PL_defstash;
2426 #ifndef STRESS_REALLOC
2427 #define REASONABLE(size) (size)
2429 #define REASONABLE(size) (1) /* unreasonable */
2433 init_stacks(ARGSproto)
2435 /* start with 128-item stack and 8K cxstack */
2436 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2437 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2438 PL_curstackinfo->si_type = PERLSI_MAIN;
2439 PL_curstack = PL_curstackinfo->si_stack;
2440 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2442 PL_stack_base = AvARRAY(PL_curstack);
2443 PL_stack_sp = PL_stack_base;
2444 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2446 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2449 PL_tmps_max = REASONABLE(128);
2451 New(54,PL_markstack,REASONABLE(32),I32);
2452 PL_markstack_ptr = PL_markstack;
2453 PL_markstack_max = PL_markstack + REASONABLE(32);
2457 New(54,PL_scopestack,REASONABLE(32),I32);
2458 PL_scopestack_ix = 0;
2459 PL_scopestack_max = REASONABLE(32);
2461 New(54,PL_savestack,REASONABLE(128),ANY);
2462 PL_savestack_ix = 0;
2463 PL_savestack_max = REASONABLE(128);
2465 New(54,PL_retstack,REASONABLE(16),OP*);
2467 PL_retstack_max = REASONABLE(16);
2476 while (PL_curstackinfo->si_next)
2477 PL_curstackinfo = PL_curstackinfo->si_next;
2478 while (PL_curstackinfo) {
2479 PERL_SI *p = PL_curstackinfo->si_prev;
2480 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2481 Safefree(PL_curstackinfo->si_cxstack);
2482 Safefree(PL_curstackinfo);
2483 PL_curstackinfo = p;
2485 Safefree(PL_tmps_stack);
2486 Safefree(PL_markstack);
2487 Safefree(PL_scopestack);
2488 Safefree(PL_savestack);
2489 Safefree(PL_retstack);
2491 Safefree(PL_debname);
2492 Safefree(PL_debdelim);
2497 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2508 lex_start(PL_linestr);
2510 PL_subname = newSVpv("main",4);
2514 init_predump_symbols(void)
2520 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2521 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2522 GvMULTI_on(PL_stdingv);
2523 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2524 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2526 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2528 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2530 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2532 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2534 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2536 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2537 GvMULTI_on(othergv);
2538 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2539 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2541 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2543 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2546 PL_osname = savepv(OSNAME);
2550 init_postdump_symbols(register int argc, register char **argv, register char **env)
2557 argc--,argv++; /* skip name of script */
2558 if (PL_doswitches) {
2559 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2562 if (argv[0][1] == '-') {
2566 if (s = strchr(argv[0], '=')) {
2568 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2571 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2574 PL_toptarget = NEWSV(0,0);
2575 sv_upgrade(PL_toptarget, SVt_PVFM);
2576 sv_setpvn(PL_toptarget, "", 0);
2577 PL_bodytarget = NEWSV(0,0);
2578 sv_upgrade(PL_bodytarget, SVt_PVFM);
2579 sv_setpvn(PL_bodytarget, "", 0);
2580 PL_formtarget = PL_bodytarget;
2583 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2584 sv_setpv(GvSV(tmpgv),PL_origfilename);
2585 magicname("0", "0", 1);
2587 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2588 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2589 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2590 GvMULTI_on(PL_argvgv);
2591 (void)gv_AVadd(PL_argvgv);
2592 av_clear(GvAVn(PL_argvgv));
2593 for (; argc > 0; argc--,argv++) {
2594 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2597 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2599 GvMULTI_on(PL_envgv);
2600 hv = GvHVn(PL_envgv);
2601 hv_magic(hv, PL_envgv, 'E');
2602 #ifndef VMS /* VMS doesn't have environ array */
2603 /* Note that if the supplied env parameter is actually a copy
2604 of the global environ then it may now point to free'd memory
2605 if the environment has been modified since. To avoid this
2606 problem we treat env==NULL as meaning 'use the default'
2611 environ[0] = Nullch;
2612 for (; *env; env++) {
2613 if (!(s = strchr(*env,'=')))
2619 sv = newSVpv(s--,0);
2620 (void)hv_store(hv, *env, s - *env, sv, 0);
2622 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2623 /* Sins of the RTL. See note in my_setenv(). */
2624 (void)PerlEnv_putenv(savepv(*env));
2628 #ifdef DYNAMIC_ENV_FETCH
2629 HvNAME(hv) = savepv(ENV_HV_NAME);
2633 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2634 sv_setiv(GvSV(tmpgv), (IV)getpid());
2643 s = PerlEnv_getenv("PERL5LIB");
2647 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2649 /* Treat PERL5?LIB as a possible search list logical name -- the
2650 * "natural" VMS idiom for a Unix path string. We allow each
2651 * element to be a set of |-separated directories for compatibility.
2655 if (my_trnlnm("PERL5LIB",buf,0))
2656 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2658 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2662 /* Use the ~-expanded versions of APPLLIB (undocumented),
2663 ARCHLIB PRIVLIB SITEARCH and SITELIB
2666 incpush(APPLLIB_EXP, TRUE);
2670 incpush(ARCHLIB_EXP, FALSE);
2673 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2676 incpush(PRIVLIB_EXP, TRUE);
2678 incpush(PRIVLIB_EXP, FALSE);
2682 incpush(SITEARCH_EXP, FALSE);
2686 incpush(SITELIB_EXP, TRUE);
2688 incpush(SITELIB_EXP, FALSE);
2692 incpush(".", FALSE);
2696 # define PERLLIB_SEP ';'
2699 # define PERLLIB_SEP '|'
2701 # define PERLLIB_SEP ':'
2704 #ifndef PERLLIB_MANGLE
2705 # define PERLLIB_MANGLE(s,n) (s)
2709 incpush(char *p, int addsubdirs)
2711 SV *subdir = Nullsv;
2717 subdir = sv_newmortal();
2718 if (!PL_archpat_auto) {
2719 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2720 + sizeof("//auto"));
2721 New(55, PL_archpat_auto, len, char);
2722 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2724 for (len = sizeof(ARCHNAME) + 2;
2725 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2726 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2731 /* Break at all separators */
2733 SV *libdir = NEWSV(55,0);
2736 /* skip any consecutive separators */
2737 while ( *p == PERLLIB_SEP ) {
2738 /* Uncomment the next line for PATH semantics */
2739 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2743 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2744 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2749 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2750 p = Nullch; /* break out */
2754 * BEFORE pushing libdir onto @INC we may first push version- and
2755 * archname-specific sub-directories.
2758 struct stat tmpstatbuf;
2763 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
2765 while (unix[len-1] == '/') len--; /* Cosmetic */
2766 sv_usepvn(libdir,unix,len);
2769 PerlIO_printf(PerlIO_stderr(),
2770 "Failed to unixify @INC element \"%s\"\n",
2773 /* .../archname/version if -d .../archname/version/auto */
2774 sv_setsv(subdir, libdir);
2775 sv_catpv(subdir, PL_archpat_auto);
2776 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2777 S_ISDIR(tmpstatbuf.st_mode))
2778 av_push(GvAVn(PL_incgv),
2779 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2781 /* .../archname if -d .../archname/auto */
2782 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2783 strlen(PL_patchlevel) + 1, "", 0);
2784 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2785 S_ISDIR(tmpstatbuf.st_mode))
2786 av_push(GvAVn(PL_incgv),
2787 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2790 /* finally push this lib directory on the end of @INC */
2791 av_push(GvAVn(PL_incgv), libdir);
2796 STATIC struct perl_thread *
2799 struct perl_thread *thr;
2802 Newz(53, thr, 1, struct perl_thread);
2803 PL_curcop = &PL_compiling;
2804 thr->cvcache = newHV();
2805 thr->threadsv = newAV();
2806 /* thr->threadsvp is set when find_threadsv is called */
2807 thr->specific = newAV();
2808 thr->errhv = newHV();
2809 thr->flags = THRf_R_JOINABLE;
2810 MUTEX_INIT(&thr->mutex);
2811 /* Handcraft thrsv similarly to mess_sv */
2812 New(53, PL_thrsv, 1, SV);
2813 Newz(53, xpv, 1, XPV);
2814 SvFLAGS(PL_thrsv) = SVt_PV;
2815 SvANY(PL_thrsv) = (void*)xpv;
2816 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2817 SvPVX(PL_thrsv) = (char*)thr;
2818 SvCUR_set(PL_thrsv, sizeof(thr));
2819 SvLEN_set(PL_thrsv, sizeof(thr));
2820 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2821 thr->oursv = PL_thrsv;
2822 PL_chopset = " \n-";
2825 MUTEX_LOCK(&PL_threads_mutex);
2830 MUTEX_UNLOCK(&PL_threads_mutex);
2832 #ifdef HAVE_THREAD_INTERN
2833 init_thread_intern(thr);
2836 #ifdef SET_THREAD_SELF
2837 SET_THREAD_SELF(thr);
2839 thr->self = pthread_self();
2840 #endif /* SET_THREAD_SELF */
2844 * These must come after the SET_THR because sv_setpvn does
2845 * SvTAINT and the taint fields require dTHR.
2847 PL_toptarget = NEWSV(0,0);
2848 sv_upgrade(PL_toptarget, SVt_PVFM);
2849 sv_setpvn(PL_toptarget, "", 0);
2850 PL_bodytarget = NEWSV(0,0);
2851 sv_upgrade(PL_bodytarget, SVt_PVFM);
2852 sv_setpvn(PL_bodytarget, "", 0);
2853 PL_formtarget = PL_bodytarget;
2854 thr->errsv = newSVpv("", 0);
2855 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2858 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2859 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2861 PL_reginterp_cnt = 0;
2865 #endif /* USE_THREADS */
2868 call_list(I32 oldscope, AV *paramList)
2871 line_t oldline = PL_curcop->cop_line;
2876 while (AvFILL(paramList) >= 0) {
2877 CV *cv = (CV*)av_shift(paramList);
2885 PUSHMARK(PL_stack_sp);
2886 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2887 (void)SvPV(atsv, len);
2890 PL_curcop = &PL_compiling;
2891 PL_curcop->cop_line = oldline;
2892 if (paramList == PL_beginav)
2893 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2895 sv_catpv(atsv, "END failed--cleanup aborted");
2896 while (PL_scopestack_ix > oldscope)
2898 croak("%s", SvPVX(atsv));
2906 /* my_exit() was called */
2907 while (PL_scopestack_ix > oldscope)
2910 PL_curstash = PL_defstash;
2912 call_list(oldscope, PL_endav);
2914 PL_curcop = &PL_compiling;
2915 PL_curcop->cop_line = oldline;
2916 if (PL_statusvalue) {
2917 if (paramList == PL_beginav)
2918 croak("BEGIN failed--compilation aborted");
2920 croak("END failed--cleanup aborted");
2925 if (!PL_restartop) {
2926 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2931 PL_curcop = &PL_compiling;
2932 PL_curcop->cop_line = oldline;
2944 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2945 thr, (unsigned long) status));
2954 STATUS_NATIVE_SET(status);
2961 my_failure_exit(void)
2964 if (vaxc$errno & 1) {
2965 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2966 STATUS_NATIVE_SET(44);
2969 if (!vaxc$errno && errno) /* unlikely */
2970 STATUS_NATIVE_SET(44);
2972 STATUS_NATIVE_SET(vaxc$errno);
2977 STATUS_POSIX_SET(errno);
2979 exitstatus = STATUS_POSIX >> 8;
2980 if (exitstatus & 255)
2981 STATUS_POSIX_SET(exitstatus);
2983 STATUS_POSIX_SET(255);
2993 register PERL_CONTEXT *cx;
2998 SvREFCNT_dec(PL_e_script);
2999 PL_e_script = Nullsv;
3002 POPSTACK_TO(PL_mainstack);
3003 if (cxstack_ix >= 0) {
3006 POPBLOCK(cx,PL_curpm);
3015 #endif /* PERL_OBJECT */
3021 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3023 read_e_script(int idx, SV *buf_sv, int maxlen)
3027 p = SvPVX(PL_e_script);
3028 nl = strchr(p, '\n');
3029 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3031 filter_del(read_e_script);
3034 sv_catpvn(buf_sv, p, nl-p);
3035 sv_chop(PL_e_script, nl);