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 */
95 CPerlObj::perl_construct(void)
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);
238 CPerlObj::perl_destruct(void)
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);
358 if (PL_sv_objcount) {
360 * Try to destruct global references. We do this first so that the
361 * destructors and destructees still exist. Some sv's might remain.
362 * Non-referenced objects are on their own.
369 /* unhook hooks which will soon be, or use, destroyed data */
370 SvREFCNT_dec(PL_warnhook);
371 PL_warnhook = Nullsv;
372 SvREFCNT_dec(PL_diehook);
374 SvREFCNT_dec(PL_parsehook);
375 PL_parsehook = Nullsv;
377 /* call exit list functions */
378 while (PL_exitlistlen-- > 0)
379 PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
381 Safefree(PL_exitlist);
383 if (destruct_level == 0){
385 DEBUG_P(debprofdump());
387 /* The exit() function will do everything that needs doing. */
391 /* loosen bonds of global variables */
394 (void)PerlIO_close(PL_rsfp);
398 /* Filters for program text */
399 SvREFCNT_dec(PL_rsfp_filters);
400 PL_rsfp_filters = Nullav;
403 PL_preprocess = FALSE;
409 PL_doswitches = FALSE;
410 PL_dowarn = G_WARN_OFF;
411 PL_doextract = FALSE;
412 PL_sawampersand = FALSE; /* must save all match strings */
413 PL_sawstudy = FALSE; /* do fbm_instr on all strings */
417 Safefree(PL_inplace);
421 SvREFCNT_dec(PL_e_script);
422 PL_e_script = Nullsv;
425 /* magical thingies */
427 Safefree(PL_ofs); /* $, */
430 Safefree(PL_ors); /* $\ */
433 SvREFCNT_dec(PL_rs); /* $/ */
436 SvREFCNT_dec(PL_nrs); /* $/ helper */
439 PL_multiline = 0; /* $* */
441 SvREFCNT_dec(PL_statname);
442 PL_statname = Nullsv;
445 /* defgv, aka *_ should be taken care of elsewhere */
447 /* clean up after study() */
448 SvREFCNT_dec(PL_lastscream);
449 PL_lastscream = Nullsv;
450 Safefree(PL_screamfirst);
452 Safefree(PL_screamnext);
455 /* startup and shutdown function lists */
456 SvREFCNT_dec(PL_beginav);
457 SvREFCNT_dec(PL_endav);
458 SvREFCNT_dec(PL_initav);
463 /* shortcuts just get cleared */
470 PL_argvoutgv = Nullgv;
472 PL_last_in_gv = Nullgv;
475 /* reset so print() ends up where we expect */
478 /* Prepare to destruct main symbol table. */
485 if (destruct_level >= 2) {
486 if (PL_scopestack_ix != 0)
487 warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
488 (long)PL_scopestack_ix);
489 if (PL_savestack_ix != 0)
490 warn("Unbalanced saves: %ld more saves than restores\n",
491 (long)PL_savestack_ix);
492 if (PL_tmps_floor != -1)
493 warn("Unbalanced tmps: %ld more allocs than frees\n",
494 (long)PL_tmps_floor + 1);
495 if (cxstack_ix != -1)
496 warn("Unbalanced context: %ld more PUSHes than POPs\n",
497 (long)cxstack_ix + 1);
500 /* Now absolutely destruct everything, somehow or other, loops or no. */
502 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
503 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
504 last_sv_count = PL_sv_count;
507 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
508 SvFLAGS(PL_strtab) |= SVt_PVHV;
510 /* Destruct the global string table. */
512 /* Yell and reset the HeVAL() slots that are still holding refcounts,
513 * so that sv_free() won't fail on them.
521 max = HvMAX(PL_strtab);
522 array = HvARRAY(PL_strtab);
526 warn("Unbalanced string table refcount: (%d) for \"%s\"",
527 HeVAL(hent) - Nullsv, HeKEY(hent));
528 HeVAL(hent) = Nullsv;
538 SvREFCNT_dec(PL_strtab);
540 if (PL_sv_count != 0)
541 warn("Scalars leaked: %ld\n", (long)PL_sv_count);
545 /* No SVs have survived, need to clean out */
547 PL_pidstatus = Nullhv;
548 Safefree(PL_origfilename);
549 Safefree(PL_archpat_auto);
550 Safefree(PL_reg_start_tmp);
551 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
552 Safefree(PL_op_mask);
554 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
556 DEBUG_P(debprofdump());
558 MUTEX_DESTROY(&PL_strtab_mutex);
559 MUTEX_DESTROY(&PL_sv_mutex);
560 MUTEX_DESTROY(&PL_eval_mutex);
561 MUTEX_DESTROY(&PL_cred_mutex);
562 COND_DESTROY(&PL_eval_cond);
564 /* As the penultimate thing, free the non-arena SV for thrsv */
565 Safefree(SvPVX(PL_thrsv));
566 Safefree(SvANY(PL_thrsv));
569 #endif /* USE_THREADS */
571 /* As the absolutely last thing, free the non-arena SV for mess() */
574 /* it could have accumulated taint magic */
575 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
578 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
579 moremagic = mg->mg_moremagic;
580 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
581 Safefree(mg->mg_ptr);
585 /* we know that type >= SVt_PV */
586 SvOOK_off(PL_mess_sv);
587 Safefree(SvPVX(PL_mess_sv));
588 Safefree(SvANY(PL_mess_sv));
589 Safefree(PL_mess_sv);
596 CPerlObj::perl_free(void)
598 perl_free(PerlInterpreter *sv_interp)
604 if (!(PL_curinterp = sv_interp))
612 CPerlObj::perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
614 perl_atexit(void (*fn) (void *), void *ptr)
617 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
618 PL_exitlist[PL_exitlistlen].fn = fn;
619 PL_exitlist[PL_exitlistlen].ptr = ptr;
625 CPerlObj::perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
627 perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
633 char *scriptname = NULL;
634 VOL bool dosearch = FALSE;
642 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
645 croak("suidperl is no longer needed since the kernel can now execute\n\
646 setuid perl scripts securely.\n");
651 if (!(PL_curinterp = sv_interp))
655 #if defined(NeXT) && defined(__DYNAMIC__)
656 _dyld_lookup_and_bind
657 ("__environ", (unsigned long *) &environ_pointer, NULL);
662 #ifndef VMS /* VMS doesn't have environ array */
663 PL_origenviron = environ;
668 /* Come here if running an undumped a.out. */
670 PL_origfilename = savepv(argv[0]);
671 PL_do_undump = FALSE;
672 cxstack_ix = -1; /* start label stack again */
674 init_postdump_symbols(argc,argv,env);
679 PL_curpad = AvARRAY(PL_comppad);
680 op_free(PL_main_root);
681 PL_main_root = Nullop;
683 PL_main_start = Nullop;
684 SvREFCNT_dec(PL_main_cv);
688 oldscope = PL_scopestack_ix;
689 PL_dowarn = G_WARN_OFF;
697 /* my_exit() was called */
698 while (PL_scopestack_ix > oldscope)
701 PL_curstash = PL_defstash;
703 call_list(oldscope, PL_endav);
705 return STATUS_NATIVE_EXPORT;
708 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
712 sv_setpvn(PL_linestr,"",0);
713 sv = newSVpv("",0); /* first used for -I flags */
717 for (argc--,argv++; argc > 0; argc--,argv++) {
718 if (argv[0][0] != '-' || !argv[0][1])
722 validarg = " PHOOEY ";
750 if (s = moreswitches(s))
760 if (PL_euid != PL_uid || PL_egid != PL_gid)
761 croak("No -e allowed in setuid scripts");
763 PL_e_script = newSVpv("",0);
764 filter_add(read_e_script, NULL);
767 sv_catpv(PL_e_script, s);
769 sv_catpv(PL_e_script, argv[1]);
773 croak("No code specified for -e");
774 sv_catpv(PL_e_script, "\n");
777 case 'I': /* -I handled both here and in moreswitches() */
779 if (!*++s && (s=argv[1]) != Nullch) {
782 while (s && isSPACE(*s))
786 for (e = s; *e && !isSPACE(*e); e++) ;
793 } /* XXX else croak? */
797 PL_preprocess = TRUE;
807 PL_preambleav = newAV();
808 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
810 PL_Sv = newSVpv("print myconfig();",0);
812 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
814 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
816 #if defined(DEBUGGING) || defined(NO_EMBED) || defined(MULTIPLICITY)
817 sv_catpv(PL_Sv,"\" Compile-time options:");
819 sv_catpv(PL_Sv," DEBUGGING");
822 sv_catpv(PL_Sv," NO_EMBED");
825 sv_catpv(PL_Sv," MULTIPLICITY");
827 sv_catpv(PL_Sv,"\\n\",");
829 #if defined(LOCAL_PATCH_COUNT)
830 if (LOCAL_PATCH_COUNT > 0) {
832 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
833 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
834 if (PL_localpatches[i])
835 sv_catpvf(PL_Sv,"\" \\t%s\\n\",",PL_localpatches[i]);
839 sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME);
842 sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
844 sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
849 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
850 print \" \\%ENV:\\n @env\\n\" if @env; \
851 print \" \\@INC:\\n @INC\\n\";");
854 PL_Sv = newSVpv("config_vars(qw(",0);
855 sv_catpv(PL_Sv, ++s);
856 sv_catpv(PL_Sv, "))");
859 av_push(PL_preambleav, PL_Sv);
860 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
866 PL_cddir = savepv(s);
871 if (!*++s || isSPACE(*s)) {
875 /* catch use of gnu style long options */
876 if (strEQ(s, "version")) {
880 if (strEQ(s, "help")) {
887 croak("Unrecognized switch: -%s (-h will show valid options)",s);
892 if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) {
903 if (!strchr("DIMUdmw", *s))
904 croak("Illegal switch in PERL5OPT: -%c", *s);
910 scriptname = argv[0];
913 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
915 else if (scriptname == Nullch) {
917 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
925 open_script(scriptname,dosearch,sv,&fdscript);
927 validate_suid(validarg, scriptname,fdscript);
932 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
933 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
934 CvUNIQUE_on(PL_compcv);
936 PL_comppad = newAV();
937 av_push(PL_comppad, Nullsv);
938 PL_curpad = AvARRAY(PL_comppad);
939 PL_comppad_name = newAV();
940 PL_comppad_name_fill = 0;
941 PL_min_intro_pending = 0;
944 av_store(PL_comppad_name, 0, newSVpv("@_", 2));
945 PL_curpad[0] = (SV*)newAV();
946 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
947 CvOWNER(PL_compcv) = 0;
948 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
949 MUTEX_INIT(CvMUTEXP(PL_compcv));
950 #endif /* USE_THREADS */
952 comppadlist = newAV();
953 AvREAL_off(comppadlist);
954 av_store(comppadlist, 0, (SV*)PL_comppad_name);
955 av_store(comppadlist, 1, (SV*)PL_comppad);
956 CvPADLIST(PL_compcv) = comppadlist;
958 boot_core_UNIVERSAL();
961 (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */
962 #if defined(VMS) || defined(WIN32) || defined(DJGPP)
966 init_predump_symbols();
967 /* init_postdump_symbols not currently designed to be called */
968 /* more than once (ENV isn't cleared first, for example) */
969 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
971 init_postdump_symbols(argc,argv,env);
975 /* now parse the script */
977 SETERRNO(0,SS$_NORMAL);
979 if (yyparse() || PL_error_count) {
981 croak("%s had compilation errors.\n", PL_origfilename);
983 croak("Execution of %s aborted due to compilation errors.\n",
987 PL_curcop->cop_line = 0;
988 PL_curstash = PL_defstash;
989 PL_preprocess = FALSE;
991 SvREFCNT_dec(PL_e_script);
992 PL_e_script = Nullsv;
995 /* now that script is parsed, we can modify record separator */
997 PL_rs = SvREFCNT_inc(PL_nrs);
998 sv_setsv(perl_get_sv("/", TRUE), PL_rs);
1002 if (ckWARN(WARN_ONCE))
1003 gv_check(PL_defstash);
1009 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1010 dump_mstats("after compilation:");
1021 CPerlObj::perl_run(void)
1023 perl_run(PerlInterpreter *sv_interp)
1032 if (!(PL_curinterp = sv_interp))
1036 oldscope = PL_scopestack_ix;
1041 cxstack_ix = -1; /* start context stack again */
1044 /* my_exit() was called */
1045 while (PL_scopestack_ix > oldscope)
1048 PL_curstash = PL_defstash;
1050 call_list(oldscope, PL_endav);
1052 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1053 dump_mstats("after execution: ");
1056 return STATUS_NATIVE_EXPORT;
1058 if (!PL_restartop) {
1059 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
1064 POPSTACK_TO(PL_mainstack);
1068 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1069 PL_sawampersand ? "Enabling" : "Omitting"));
1071 if (!PL_restartop) {
1072 DEBUG_x(dump_all());
1073 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1074 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n",
1075 (unsigned long) thr));
1078 PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename);
1081 if (PERLDB_SINGLE && PL_DBsingle)
1082 sv_setiv(PL_DBsingle, 1);
1084 call_list(oldscope, PL_initav);
1090 PL_op = PL_restartop;
1094 else if (PL_main_start) {
1095 CvDEPTH(PL_main_cv) = 1;
1096 PL_op = PL_main_start;
1106 perl_get_sv(char *name, I32 create)
1110 if (name[1] == '\0' && !isALPHA(name[0])) {
1111 PADOFFSET tmp = find_threadsv(name);
1112 if (tmp != NOT_IN_PAD) {
1114 return THREADSV(tmp);
1117 #endif /* USE_THREADS */
1118 gv = gv_fetchpv(name, create, SVt_PV);
1125 perl_get_av(char *name, I32 create)
1127 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1136 perl_get_hv(char *name, I32 create)
1138 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1147 perl_get_cv(char *name, I32 create)
1149 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1150 if (create && !GvCVu(gv))
1151 return newSUB(start_subparse(FALSE, 0),
1152 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1160 /* Be sure to refetch the stack pointer after calling these routines. */
1163 perl_call_argv(char *sub_name, I32 flags, register char **argv)
1165 /* See G_* flags in cop.h */
1166 /* null terminated arg list */
1173 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1178 return perl_call_pv(sub_name, flags);
1182 perl_call_pv(char *sub_name, I32 flags)
1183 /* name of the subroutine */
1184 /* See G_* flags in cop.h */
1186 return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
1190 perl_call_method(char *methname, I32 flags)
1191 /* name of the subroutine */
1192 /* See G_* flags in cop.h */
1198 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1203 return perl_call_sv(*PL_stack_sp--, flags);
1206 /* May be called with any of a CV, a GV, or an SV containing the name. */
1208 perl_call_sv(SV *sv, I32 flags)
1210 /* See G_* flags in cop.h */
1213 LOGOP myop; /* fake syntax tree node */
1217 bool oldcatch = CATCH_GET;
1222 if (flags & G_DISCARD) {
1227 Zero(&myop, 1, LOGOP);
1228 myop.op_next = Nullop;
1229 if (!(flags & G_NOARGS))
1230 myop.op_flags |= OPf_STACKED;
1231 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1232 (flags & G_ARRAY) ? OPf_WANT_LIST :
1237 EXTEND(PL_stack_sp, 1);
1238 *++PL_stack_sp = sv;
1240 oldscope = PL_scopestack_ix;
1242 if (PERLDB_SUB && PL_curstash != PL_debstash
1243 /* Handle first BEGIN of -d. */
1244 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1245 /* Try harder, since this may have been a sighandler, thus
1246 * curstash may be meaningless. */
1247 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1248 && !(flags & G_NODEBUG))
1249 PL_op->op_private |= OPpENTERSUB_DB;
1251 if (flags & G_EVAL) {
1252 cLOGOP->op_other = PL_op;
1254 /* we're trying to emulate pp_entertry() here */
1256 register PERL_CONTEXT *cx;
1257 I32 gimme = GIMME_V;
1262 push_return(PL_op->op_next);
1263 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1265 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1268 if (flags & G_KEEPERR)
1283 /* my_exit() was called */
1284 PL_curstash = PL_defstash;
1288 croak("Callback called exit");
1293 PL_op = PL_restartop;
1297 PL_stack_sp = PL_stack_base + oldmark;
1298 if (flags & G_ARRAY)
1302 *++PL_stack_sp = &PL_sv_undef;
1310 if (PL_op == (OP*)&myop)
1311 PL_op = pp_entersub(ARGS);
1314 retval = PL_stack_sp - (PL_stack_base + oldmark);
1315 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1319 if (flags & G_EVAL) {
1320 if (PL_scopestack_ix > oldscope) {
1324 register PERL_CONTEXT *cx;
1336 CATCH_SET(oldcatch);
1338 if (flags & G_DISCARD) {
1339 PL_stack_sp = PL_stack_base + oldmark;
1348 /* Eval a string. The G_EVAL flag is always assumed. */
1351 perl_eval_sv(SV *sv, I32 flags)
1353 /* See G_* flags in cop.h */
1356 UNOP myop; /* fake syntax tree node */
1357 I32 oldmark = SP - PL_stack_base;
1364 if (flags & G_DISCARD) {
1371 Zero(PL_op, 1, UNOP);
1372 EXTEND(PL_stack_sp, 1);
1373 *++PL_stack_sp = sv;
1374 oldscope = PL_scopestack_ix;
1376 if (!(flags & G_NOARGS))
1377 myop.op_flags = OPf_STACKED;
1378 myop.op_next = Nullop;
1379 myop.op_type = OP_ENTEREVAL;
1380 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1381 (flags & G_ARRAY) ? OPf_WANT_LIST :
1383 if (flags & G_KEEPERR)
1384 myop.op_flags |= OPf_SPECIAL;
1394 /* my_exit() was called */
1395 PL_curstash = PL_defstash;
1399 croak("Callback called exit");
1404 PL_op = PL_restartop;
1408 PL_stack_sp = PL_stack_base + oldmark;
1409 if (flags & G_ARRAY)
1413 *++PL_stack_sp = &PL_sv_undef;
1418 if (PL_op == (OP*)&myop)
1419 PL_op = pp_entereval(ARGS);
1422 retval = PL_stack_sp - (PL_stack_base + oldmark);
1423 if (!(flags & G_KEEPERR))
1428 if (flags & G_DISCARD) {
1429 PL_stack_sp = PL_stack_base + oldmark;
1439 perl_eval_pv(char *p, I32 croak_on_error)
1442 SV* sv = newSVpv(p, 0);
1445 perl_eval_sv(sv, G_SCALAR);
1452 if (croak_on_error && SvTRUE(ERRSV))
1453 croak(SvPVx(ERRSV, PL_na));
1458 /* Require a module. */
1461 perl_require_pv(char *pv)
1465 PUSHSTACKi(PERLSI_REQUIRE);
1467 sv = sv_newmortal();
1468 sv_setpv(sv, "require '");
1471 perl_eval_sv(sv, G_DISCARD);
1477 magicname(char *sym, char *name, I32 namlen)
1481 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1482 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1486 usage(char *name) /* XXX move this out into a module ? */
1489 /* This message really ought to be max 23 lines.
1490 * Removed -h because the user already knows that opton. Others? */
1492 static char *usage_msg[] = {
1493 "-0[octal] specify record separator (\\0, if no argument)",
1494 "-a autosplit mode with -n or -p (splits $_ into @F)",
1495 "-c check syntax only (runs BEGIN and END blocks)",
1496 "-d[:debugger] run scripts under debugger",
1497 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1498 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1499 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1500 "-i[extension] edit <> files in place (make backup if extension supplied)",
1501 "-Idirectory specify @INC/#include directory (may be used more than once)",
1502 "-l[octal] enable line ending processing, specifies line terminator",
1503 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1504 "-n assume 'while (<>) { ... }' loop around your script",
1505 "-p assume loop like -n but print line also like sed",
1506 "-P run script through C preprocessor before compilation",
1507 "-s enable some switch parsing for switches after script name",
1508 "-S look for the script using PATH environment variable",
1509 "-T turn on tainting checks",
1510 "-u dump core after parsing script",
1511 "-U allow unsafe operations",
1512 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1513 "-V[:variable] print perl configuration information",
1514 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1515 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1519 char **p = usage_msg;
1521 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1523 printf("\n %s", *p++);
1526 /* This routine handles any switches that can be given during run */
1529 moreswitches(char *s)
1538 rschar = scan_oct(s, 4, &numlen);
1539 SvREFCNT_dec(PL_nrs);
1540 if (rschar & ~((U8)~0))
1541 PL_nrs = &PL_sv_undef;
1542 else if (!rschar && numlen >= 2)
1543 PL_nrs = newSVpv("", 0);
1546 PL_nrs = newSVpv(&ch, 1);
1552 PL_splitstr = savepv(s + 1);
1566 if (*s == ':' || *s == '=') {
1567 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1571 PL_perldb = PERLDB_ALL;
1578 if (isALPHA(s[1])) {
1579 static char debopts[] = "psltocPmfrxuLHXDS";
1582 for (s++; *s && (d = strchr(debopts,*s)); s++)
1583 PL_debug |= 1 << (d - debopts);
1586 PL_debug = atoi(s+1);
1587 for (s++; isDIGIT(*s); s++) ;
1589 PL_debug |= 0x80000000;
1591 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1592 for (s++; isALNUM(*s); s++) ;
1597 usage(PL_origargv[0]);
1601 Safefree(PL_inplace);
1602 PL_inplace = savepv(s+1);
1604 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1607 if (*s == '-') /* Additional switches on #! line. */
1611 case 'I': /* -I handled both here and in parse_perl() */
1614 while (*s && isSPACE(*s))
1618 for (e = s; *e && !isSPACE(*e); e++) ;
1619 p = savepvn(s, e-s);
1625 croak("No space allowed after -I");
1633 PL_ors = savepv("\n");
1635 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1640 if (RsPARA(PL_nrs)) {
1645 PL_ors = SvPV(PL_nrs, PL_orslen);
1646 PL_ors = savepvn(PL_ors, PL_orslen);
1650 forbid_setid("-M"); /* XXX ? */
1653 forbid_setid("-m"); /* XXX ? */
1658 /* -M-foo == 'no foo' */
1659 if (*s == '-') { use = "no "; ++s; }
1660 sv = newSVpv(use,0);
1662 /* We allow -M'Module qw(Foo Bar)' */
1663 while(isALNUM(*s) || *s==':') ++s;
1665 sv_catpv(sv, start);
1666 if (*(start-1) == 'm') {
1668 croak("Can't use '%c' after -mname", *s);
1669 sv_catpv( sv, " ()");
1672 sv_catpvn(sv, start, s-start);
1673 sv_catpv(sv, " split(/,/,q{");
1678 if (PL_preambleav == NULL)
1679 PL_preambleav = newAV();
1680 av_push(PL_preambleav, sv);
1683 croak("No space allowed after -%c", *(s-1));
1695 PL_doswitches = TRUE;
1700 croak("Too late for \"-T\" option");
1704 PL_do_undump = TRUE;
1712 #if defined(SUBVERSION) && SUBVERSION > 0
1713 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1714 PATCHLEVEL, SUBVERSION, ARCHNAME);
1716 printf("\nThis is perl, version %s built for %s",
1717 PL_patchlevel, ARCHNAME);
1719 #if defined(LOCAL_PATCH_COUNT)
1720 if (LOCAL_PATCH_COUNT > 0)
1721 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1722 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1725 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1727 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1730 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1731 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1734 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1735 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1738 printf("atariST series port, ++jrb bammi@cadence.com\n");
1741 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1744 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1747 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
1750 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n");
1753 printf("VM/ESA port by Neale Ferguson, 1998\n");
1756 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n");
1758 #ifdef BINARY_BUILD_NOTICE
1759 BINARY_BUILD_NOTICE;
1762 Perl may be copied only under the terms of either the Artistic License or the\n\
1763 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1764 Complete documentation for Perl, including FAQ lists, should be found on\n\
1765 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1766 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1769 if (! (PL_dowarn & G_WARN_ALL_MASK))
1770 PL_dowarn |= G_WARN_ON;
1774 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1775 PL_compiling.cop_warnings = WARN_ALL ;
1779 PL_dowarn = G_WARN_ALL_OFF;
1780 PL_compiling.cop_warnings = WARN_NONE ;
1785 if (s[1] == '-') /* Additional switches on #! line. */
1790 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1796 #ifdef ALTERNATE_SHEBANG
1797 case 'S': /* OS/2 needs -S on "extproc" line. */
1805 croak("Can't emulate -%.1s on #! line",s);
1810 /* compliments of Tom Christiansen */
1812 /* unexec() can be found in the Gnu emacs distribution */
1813 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1824 prog = newSVpv(BIN_EXP, 0);
1825 sv_catpv(prog, "/perl");
1826 file = newSVpv(PL_origfilename, 0);
1827 sv_catpv(file, ".perldump");
1829 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1830 /* unexec prints msg to stderr in case of failure */
1831 PerlProc_exit(status);
1834 # include <lib$routines.h>
1835 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1837 ABORT(); /* for use with undump */
1842 /* initialize curinterp */
1847 #ifdef PERL_OBJECT /* XXX kludge */
1850 PL_chopset = " \n-"; \
1851 PL_copline = NOLINE; \
1852 PL_curcop = &PL_compiling;\
1853 PL_curcopdb = NULL; \
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; \
1881 # ifdef MULTIPLICITY
1882 # define PERLVAR(var,type)
1883 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1884 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1885 # include "intrpvar.h"
1886 # ifndef USE_THREADS
1887 # include "thrdvar.h"
1893 # define PERLVAR(var,type)
1894 # define PERLVARI(var,type,init) PL_##var = init;
1895 # define PERLVARIC(var,type,init) PL_##var = init;
1896 # include "intrpvar.h"
1897 # ifndef USE_THREADS
1898 # include "thrdvar.h"
1909 init_main_stash(void)
1914 /* Note that strtab is a rather special HV. Assumptions are made
1915 about not iterating on it, and not adding tie magic to it.
1916 It is properly deallocated in perl_destruct() */
1917 PL_strtab = newHV();
1919 MUTEX_INIT(&PL_strtab_mutex);
1921 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1922 hv_ksplit(PL_strtab, 512);
1924 PL_curstash = PL_defstash = newHV();
1925 PL_curstname = newSVpv("main",4);
1926 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1927 SvREFCNT_dec(GvHV(gv));
1928 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1930 HvNAME(PL_defstash) = savepv("main");
1931 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1932 GvMULTI_on(PL_incgv);
1933 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1934 GvMULTI_on(PL_hintgv);
1935 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1936 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1937 GvMULTI_on(PL_errgv);
1938 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1939 GvMULTI_on(PL_replgv);
1940 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1941 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1942 sv_setpvn(ERRSV, "", 0);
1943 PL_curstash = PL_defstash;
1944 PL_compiling.cop_stash = PL_defstash;
1945 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1946 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1947 /* We must init $/ before switches are processed. */
1948 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1952 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1960 PL_origfilename = savepv("-e");
1963 /* if find_script() returns, it returns a malloc()-ed value */
1964 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1966 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1967 char *s = scriptname + 8;
1968 *fdscript = atoi(s);
1972 scriptname = savepv(s + 1);
1973 Safefree(PL_origfilename);
1974 PL_origfilename = scriptname;
1979 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1980 if (strEQ(PL_origfilename,"-"))
1982 if (*fdscript >= 0) {
1983 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1984 #if defined(HAS_FCNTL) && defined(F_SETFD)
1986 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1989 else if (PL_preprocess) {
1990 char *cpp_cfg = CPPSTDIN;
1991 SV *cpp = newSVpv("",0);
1992 SV *cmd = NEWSV(0,0);
1994 if (strEQ(cpp_cfg, "cppstdin"))
1995 sv_catpvf(cpp, "%s/", BIN_EXP);
1996 sv_catpv(cpp, cpp_cfg);
1999 sv_catpv(sv,PRIVLIB_EXP);
2003 sed %s -e \"/^[^#]/b\" \
2004 -e \"/^#[ ]*include[ ]/b\" \
2005 -e \"/^#[ ]*define[ ]/b\" \
2006 -e \"/^#[ ]*if[ ]/b\" \
2007 -e \"/^#[ ]*ifdef[ ]/b\" \
2008 -e \"/^#[ ]*ifndef[ ]/b\" \
2009 -e \"/^#[ ]*else/b\" \
2010 -e \"/^#[ ]*elif[ ]/b\" \
2011 -e \"/^#[ ]*undef[ ]/b\" \
2012 -e \"/^#[ ]*endif/b\" \
2015 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2019 %s %s -e '/^[^#]/b' \
2020 -e '/^#[ ]*include[ ]/b' \
2021 -e '/^#[ ]*define[ ]/b' \
2022 -e '/^#[ ]*if[ ]/b' \
2023 -e '/^#[ ]*ifdef[ ]/b' \
2024 -e '/^#[ ]*ifndef[ ]/b' \
2025 -e '/^#[ ]*else/b' \
2026 -e '/^#[ ]*elif[ ]/b' \
2027 -e '/^#[ ]*undef[ ]/b' \
2028 -e '/^#[ ]*endif/b' \
2033 %s %s -e '/^[^#]/b' \
2034 -e '/^#[ ]*include[ ]/b' \
2035 -e '/^#[ ]*define[ ]/b' \
2036 -e '/^#[ ]*if[ ]/b' \
2037 -e '/^#[ ]*ifdef[ ]/b' \
2038 -e '/^#[ ]*ifndef[ ]/b' \
2039 -e '/^#[ ]*else/b' \
2040 -e '/^#[ ]*elif[ ]/b' \
2041 -e '/^#[ ]*undef[ ]/b' \
2042 -e '/^#[ ]*endif/b' \
2051 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2053 scriptname, cpp, sv, CPPMINUS);
2054 PL_doextract = FALSE;
2055 #ifdef IAMSUID /* actually, this is caught earlier */
2056 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2058 (void)seteuid(PL_uid); /* musn't stay setuid root */
2061 (void)setreuid((Uid_t)-1, PL_uid);
2063 #ifdef HAS_SETRESUID
2064 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2066 PerlProc_setuid(PL_uid);
2070 if (PerlProc_geteuid() != PL_uid)
2071 croak("Can't do seteuid!\n");
2073 #endif /* IAMSUID */
2074 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2078 else if (!*scriptname) {
2079 forbid_setid("program input from stdin");
2080 PL_rsfp = PerlIO_stdin();
2083 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2084 #if defined(HAS_FCNTL) && defined(F_SETFD)
2086 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2091 #ifndef IAMSUID /* in case script is not readable before setuid */
2093 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2094 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2097 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2098 croak("Can't do setuid\n");
2102 croak("Can't open perl script \"%s\": %s\n",
2103 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2108 validate_suid(char *validarg, char *scriptname, int fdscript)
2112 /* do we need to emulate setuid on scripts? */
2114 /* This code is for those BSD systems that have setuid #! scripts disabled
2115 * in the kernel because of a security problem. Merely defining DOSUID
2116 * in perl will not fix that problem, but if you have disabled setuid
2117 * scripts in the kernel, this will attempt to emulate setuid and setgid
2118 * on scripts that have those now-otherwise-useless bits set. The setuid
2119 * root version must be called suidperl or sperlN.NNN. If regular perl
2120 * discovers that it has opened a setuid script, it calls suidperl with
2121 * the same argv that it had. If suidperl finds that the script it has
2122 * just opened is NOT setuid root, it sets the effective uid back to the
2123 * uid. We don't just make perl setuid root because that loses the
2124 * effective uid we had before invoking perl, if it was different from the
2127 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2128 * be defined in suidperl only. suidperl must be setuid root. The
2129 * Configure script will set this up for you if you want it.
2136 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2137 croak("Can't stat script \"%s\"",PL_origfilename);
2138 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2142 #ifndef HAS_SETREUID
2143 /* On this access check to make sure the directories are readable,
2144 * there is actually a small window that the user could use to make
2145 * filename point to an accessible directory. So there is a faint
2146 * chance that someone could execute a setuid script down in a
2147 * non-accessible directory. I don't know what to do about that.
2148 * But I don't think it's too important. The manual lies when
2149 * it says access() is useful in setuid programs.
2151 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2152 croak("Permission denied");
2154 /* If we can swap euid and uid, then we can determine access rights
2155 * with a simple stat of the file, and then compare device and
2156 * inode to make sure we did stat() on the same file we opened.
2157 * Then we just have to make sure he or she can execute it.
2160 struct stat tmpstatbuf;
2164 setreuid(PL_euid,PL_uid) < 0
2167 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2170 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2171 croak("Can't swap uid and euid"); /* really paranoid */
2172 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2173 croak("Permission denied"); /* testing full pathname here */
2174 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2175 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2176 (void)PerlIO_close(PL_rsfp);
2177 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2178 PerlIO_printf(PL_rsfp,
2179 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2180 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2181 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2182 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2183 SvPVX(GvSV(PL_curcop->cop_filegv)),
2184 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2185 (void)PerlProc_pclose(PL_rsfp);
2187 croak("Permission denied\n");
2191 setreuid(PL_uid,PL_euid) < 0
2193 # if defined(HAS_SETRESUID)
2194 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2197 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2198 croak("Can't reswap uid and euid");
2199 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2200 croak("Permission denied\n");
2202 #endif /* HAS_SETREUID */
2203 #endif /* IAMSUID */
2205 if (!S_ISREG(PL_statbuf.st_mode))
2206 croak("Permission denied");
2207 if (PL_statbuf.st_mode & S_IWOTH)
2208 croak("Setuid/gid script is writable by world");
2209 PL_doswitches = FALSE; /* -s is insecure in suid */
2210 PL_curcop->cop_line++;
2211 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2212 strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
2213 croak("No #! line");
2214 s = SvPV(PL_linestr,PL_na)+2;
2216 while (!isSPACE(*s)) s++;
2217 for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
2218 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2219 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2220 croak("Not a perl script");
2221 while (*s == ' ' || *s == '\t') s++;
2223 * #! arg must be what we saw above. They can invoke it by
2224 * mentioning suidperl explicitly, but they may not add any strange
2225 * arguments beyond what #! says if they do invoke suidperl that way.
2227 len = strlen(validarg);
2228 if (strEQ(validarg," PHOOEY ") ||
2229 strnNE(s,validarg,len) || !isSPACE(s[len]))
2230 croak("Args must match #! line");
2233 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2234 PL_euid == PL_statbuf.st_uid)
2236 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2237 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2238 #endif /* IAMSUID */
2240 if (PL_euid) { /* oops, we're not the setuid root perl */
2241 (void)PerlIO_close(PL_rsfp);
2244 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2246 croak("Can't do setuid\n");
2249 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2251 (void)setegid(PL_statbuf.st_gid);
2254 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2256 #ifdef HAS_SETRESGID
2257 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2259 PerlProc_setgid(PL_statbuf.st_gid);
2263 if (PerlProc_getegid() != PL_statbuf.st_gid)
2264 croak("Can't do setegid!\n");
2266 if (PL_statbuf.st_mode & S_ISUID) {
2267 if (PL_statbuf.st_uid != PL_euid)
2269 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2272 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2274 #ifdef HAS_SETRESUID
2275 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2277 PerlProc_setuid(PL_statbuf.st_uid);
2281 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2282 croak("Can't do seteuid!\n");
2284 else if (PL_uid) { /* oops, mustn't run as root */
2286 (void)seteuid((Uid_t)PL_uid);
2289 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2291 #ifdef HAS_SETRESUID
2292 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2294 PerlProc_setuid((Uid_t)PL_uid);
2298 if (PerlProc_geteuid() != PL_uid)
2299 croak("Can't do seteuid!\n");
2302 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2303 croak("Permission denied\n"); /* they can't do this */
2306 else if (PL_preprocess)
2307 croak("-P not allowed for setuid/setgid script\n");
2308 else if (fdscript >= 0)
2309 croak("fd script not allowed in suidperl\n");
2311 croak("Script is not setuid/setgid in suidperl\n");
2313 /* We absolutely must clear out any saved ids here, so we */
2314 /* exec the real perl, substituting fd script for scriptname. */
2315 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2316 PerlIO_rewind(PL_rsfp);
2317 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2318 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2319 if (!PL_origargv[which])
2320 croak("Permission denied");
2321 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2322 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2323 #if defined(HAS_FCNTL) && defined(F_SETFD)
2324 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2326 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2327 croak("Can't do setuid\n");
2328 #endif /* IAMSUID */
2330 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2331 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2333 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2334 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2336 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2339 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2340 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2341 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2342 /* not set-id, must be wrapped */
2348 find_beginning(void)
2350 register char *s, *s2;
2352 /* skip forward in input to the real script? */
2355 while (PL_doextract) {
2356 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2357 croak("No Perl script found in input\n");
2358 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2359 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2360 PL_doextract = FALSE;
2361 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2363 while (*s == ' ' || *s == '\t') s++;
2365 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2366 if (strnEQ(s2-4,"perl",4))
2368 while (s = moreswitches(s)) ;
2370 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2371 croak("Can't chdir to %s",PL_cddir);
2380 PL_uid = (int)PerlProc_getuid();
2381 PL_euid = (int)PerlProc_geteuid();
2382 PL_gid = (int)PerlProc_getgid();
2383 PL_egid = (int)PerlProc_getegid();
2385 PL_uid |= PL_gid << 16;
2386 PL_euid |= PL_egid << 16;
2388 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2392 forbid_setid(char *s)
2394 if (PL_euid != PL_uid)
2395 croak("No %s allowed while running setuid", s);
2396 if (PL_egid != PL_gid)
2397 croak("No %s allowed while running setgid", s);
2404 PL_curstash = PL_debstash;
2405 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2406 AvREAL_off(PL_dbargs);
2407 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2408 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2409 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2410 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2411 sv_setiv(PL_DBsingle, 0);
2412 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2413 sv_setiv(PL_DBtrace, 0);
2414 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2415 sv_setiv(PL_DBsignal, 0);
2416 PL_curstash = PL_defstash;
2419 #ifndef STRESS_REALLOC
2420 #define REASONABLE(size) (size)
2422 #define REASONABLE(size) (1) /* unreasonable */
2426 init_stacks(ARGSproto)
2428 /* start with 128-item stack and 8K cxstack */
2429 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2430 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2431 PL_curstackinfo->si_type = PERLSI_MAIN;
2432 PL_curstack = PL_curstackinfo->si_stack;
2433 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2435 PL_stack_base = AvARRAY(PL_curstack);
2436 PL_stack_sp = PL_stack_base;
2437 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2439 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2442 PL_tmps_max = REASONABLE(128);
2444 New(54,PL_markstack,REASONABLE(32),I32);
2445 PL_markstack_ptr = PL_markstack;
2446 PL_markstack_max = PL_markstack + REASONABLE(32);
2450 New(54,PL_scopestack,REASONABLE(32),I32);
2451 PL_scopestack_ix = 0;
2452 PL_scopestack_max = REASONABLE(32);
2454 New(54,PL_savestack,REASONABLE(128),ANY);
2455 PL_savestack_ix = 0;
2456 PL_savestack_max = REASONABLE(128);
2458 New(54,PL_retstack,REASONABLE(16),OP*);
2460 PL_retstack_max = REASONABLE(16);
2469 while (PL_curstackinfo->si_next)
2470 PL_curstackinfo = PL_curstackinfo->si_next;
2471 while (PL_curstackinfo) {
2472 PERL_SI *p = PL_curstackinfo->si_prev;
2473 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2474 Safefree(PL_curstackinfo->si_cxstack);
2475 Safefree(PL_curstackinfo);
2476 PL_curstackinfo = p;
2478 Safefree(PL_tmps_stack);
2479 Safefree(PL_markstack);
2480 Safefree(PL_scopestack);
2481 Safefree(PL_savestack);
2482 Safefree(PL_retstack);
2484 Safefree(PL_debname);
2485 Safefree(PL_debdelim);
2490 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2501 lex_start(PL_linestr);
2503 PL_subname = newSVpv("main",4);
2507 init_predump_symbols(void)
2513 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2514 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2515 GvMULTI_on(PL_stdingv);
2516 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2517 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2519 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2521 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2523 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2525 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2527 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2529 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2530 GvMULTI_on(othergv);
2531 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2532 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2534 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2536 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2539 PL_osname = savepv(OSNAME);
2543 init_postdump_symbols(register int argc, register char **argv, register char **env)
2550 argc--,argv++; /* skip name of script */
2551 if (PL_doswitches) {
2552 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2555 if (argv[0][1] == '-') {
2559 if (s = strchr(argv[0], '=')) {
2561 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2564 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2567 PL_toptarget = NEWSV(0,0);
2568 sv_upgrade(PL_toptarget, SVt_PVFM);
2569 sv_setpvn(PL_toptarget, "", 0);
2570 PL_bodytarget = NEWSV(0,0);
2571 sv_upgrade(PL_bodytarget, SVt_PVFM);
2572 sv_setpvn(PL_bodytarget, "", 0);
2573 PL_formtarget = PL_bodytarget;
2576 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2577 sv_setpv(GvSV(tmpgv),PL_origfilename);
2578 magicname("0", "0", 1);
2580 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2581 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2582 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2583 GvMULTI_on(PL_argvgv);
2584 (void)gv_AVadd(PL_argvgv);
2585 av_clear(GvAVn(PL_argvgv));
2586 for (; argc > 0; argc--,argv++) {
2587 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2590 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2592 GvMULTI_on(PL_envgv);
2593 hv = GvHVn(PL_envgv);
2594 hv_magic(hv, PL_envgv, 'E');
2595 #ifndef VMS /* VMS doesn't have environ array */
2596 /* Note that if the supplied env parameter is actually a copy
2597 of the global environ then it may now point to free'd memory
2598 if the environment has been modified since. To avoid this
2599 problem we treat env==NULL as meaning 'use the default'
2604 environ[0] = Nullch;
2605 for (; *env; env++) {
2606 if (!(s = strchr(*env,'=')))
2612 sv = newSVpv(s--,0);
2613 (void)hv_store(hv, *env, s - *env, sv, 0);
2615 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2616 /* Sins of the RTL. See note in my_setenv(). */
2617 (void)PerlEnv_putenv(savepv(*env));
2621 #ifdef DYNAMIC_ENV_FETCH
2622 HvNAME(hv) = savepv(ENV_HV_NAME);
2626 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2627 sv_setiv(GvSV(tmpgv), (IV)getpid());
2636 s = PerlEnv_getenv("PERL5LIB");
2640 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2642 /* Treat PERL5?LIB as a possible search list logical name -- the
2643 * "natural" VMS idiom for a Unix path string. We allow each
2644 * element to be a set of |-separated directories for compatibility.
2648 if (my_trnlnm("PERL5LIB",buf,0))
2649 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2651 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2655 /* Use the ~-expanded versions of APPLLIB (undocumented),
2656 ARCHLIB PRIVLIB SITEARCH and SITELIB
2659 incpush(APPLLIB_EXP, TRUE);
2663 incpush(ARCHLIB_EXP, FALSE);
2666 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2669 incpush(PRIVLIB_EXP, TRUE);
2671 incpush(PRIVLIB_EXP, FALSE);
2675 incpush(SITEARCH_EXP, FALSE);
2679 incpush(SITELIB_EXP, TRUE);
2681 incpush(SITELIB_EXP, FALSE);
2685 incpush(".", FALSE);
2689 # define PERLLIB_SEP ';'
2692 # define PERLLIB_SEP '|'
2694 # define PERLLIB_SEP ':'
2697 #ifndef PERLLIB_MANGLE
2698 # define PERLLIB_MANGLE(s,n) (s)
2702 incpush(char *p, int addsubdirs)
2704 SV *subdir = Nullsv;
2710 subdir = sv_newmortal();
2711 if (!PL_archpat_auto) {
2712 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2713 + sizeof("//auto"));
2714 New(55, PL_archpat_auto, len, char);
2715 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2717 for (len = sizeof(ARCHNAME) + 2;
2718 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2719 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2724 /* Break at all separators */
2726 SV *libdir = NEWSV(55,0);
2729 /* skip any consecutive separators */
2730 while ( *p == PERLLIB_SEP ) {
2731 /* Uncomment the next line for PATH semantics */
2732 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2736 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2737 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2742 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2743 p = Nullch; /* break out */
2747 * BEFORE pushing libdir onto @INC we may first push version- and
2748 * archname-specific sub-directories.
2751 struct stat tmpstatbuf;
2756 if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
2758 while (unix[len-1] == '/') len--; /* Cosmetic */
2759 sv_usepvn(libdir,unix,len);
2762 PerlIO_printf(PerlIO_stderr(),
2763 "Failed to unixify @INC element \"%s\"\n",
2764 SvPV(libdir,PL_na));
2766 /* .../archname/version if -d .../archname/version/auto */
2767 sv_setsv(subdir, libdir);
2768 sv_catpv(subdir, PL_archpat_auto);
2769 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2770 S_ISDIR(tmpstatbuf.st_mode))
2771 av_push(GvAVn(PL_incgv),
2772 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2774 /* .../archname if -d .../archname/auto */
2775 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2776 strlen(PL_patchlevel) + 1, "", 0);
2777 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2778 S_ISDIR(tmpstatbuf.st_mode))
2779 av_push(GvAVn(PL_incgv),
2780 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2783 /* finally push this lib directory on the end of @INC */
2784 av_push(GvAVn(PL_incgv), libdir);
2789 STATIC struct perl_thread *
2792 struct perl_thread *thr;
2795 Newz(53, thr, 1, struct perl_thread);
2796 PL_curcop = &PL_compiling;
2797 thr->cvcache = newHV();
2798 thr->threadsv = newAV();
2799 /* thr->threadsvp is set when find_threadsv is called */
2800 thr->specific = newAV();
2801 thr->errhv = newHV();
2802 thr->flags = THRf_R_JOINABLE;
2803 MUTEX_INIT(&thr->mutex);
2804 /* Handcraft thrsv similarly to mess_sv */
2805 New(53, PL_thrsv, 1, SV);
2806 Newz(53, xpv, 1, XPV);
2807 SvFLAGS(PL_thrsv) = SVt_PV;
2808 SvANY(PL_thrsv) = (void*)xpv;
2809 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2810 SvPVX(PL_thrsv) = (char*)thr;
2811 SvCUR_set(PL_thrsv, sizeof(thr));
2812 SvLEN_set(PL_thrsv, sizeof(thr));
2813 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2814 thr->oursv = PL_thrsv;
2815 PL_chopset = " \n-";
2817 MUTEX_LOCK(&PL_threads_mutex);
2822 MUTEX_UNLOCK(&PL_threads_mutex);
2824 #ifdef HAVE_THREAD_INTERN
2825 init_thread_intern(thr);
2828 #ifdef SET_THREAD_SELF
2829 SET_THREAD_SELF(thr);
2831 thr->self = pthread_self();
2832 #endif /* SET_THREAD_SELF */
2836 * These must come after the SET_THR because sv_setpvn does
2837 * SvTAINT and the taint fields require dTHR.
2839 PL_toptarget = NEWSV(0,0);
2840 sv_upgrade(PL_toptarget, SVt_PVFM);
2841 sv_setpvn(PL_toptarget, "", 0);
2842 PL_bodytarget = NEWSV(0,0);
2843 sv_upgrade(PL_bodytarget, SVt_PVFM);
2844 sv_setpvn(PL_bodytarget, "", 0);
2845 PL_formtarget = PL_bodytarget;
2846 thr->errsv = newSVpv("", 0);
2847 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2850 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2851 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2853 PL_reginterp_cnt = 0;
2857 #endif /* USE_THREADS */
2860 call_list(I32 oldscope, AV *paramList)
2863 line_t oldline = PL_curcop->cop_line;
2868 while (AvFILL(paramList) >= 0) {
2869 CV *cv = (CV*)av_shift(paramList);
2877 PUSHMARK(PL_stack_sp);
2878 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2879 (void)SvPV(atsv, len);
2882 PL_curcop = &PL_compiling;
2883 PL_curcop->cop_line = oldline;
2884 if (paramList == PL_beginav)
2885 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2887 sv_catpv(atsv, "END failed--cleanup aborted");
2888 while (PL_scopestack_ix > oldscope)
2890 croak("%s", SvPVX(atsv));
2898 /* my_exit() was called */
2899 while (PL_scopestack_ix > oldscope)
2902 PL_curstash = PL_defstash;
2904 call_list(oldscope, PL_endav);
2906 PL_curcop = &PL_compiling;
2907 PL_curcop->cop_line = oldline;
2908 if (PL_statusvalue) {
2909 if (paramList == PL_beginav)
2910 croak("BEGIN failed--compilation aborted");
2912 croak("END failed--cleanup aborted");
2917 if (!PL_restartop) {
2918 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2923 PL_curcop = &PL_compiling;
2924 PL_curcop->cop_line = oldline;
2936 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2937 thr, (unsigned long) status));
2946 STATUS_NATIVE_SET(status);
2953 my_failure_exit(void)
2956 if (vaxc$errno & 1) {
2957 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2958 STATUS_NATIVE_SET(44);
2961 if (!vaxc$errno && errno) /* unlikely */
2962 STATUS_NATIVE_SET(44);
2964 STATUS_NATIVE_SET(vaxc$errno);
2969 STATUS_POSIX_SET(errno);
2971 exitstatus = STATUS_POSIX >> 8;
2972 if (exitstatus & 255)
2973 STATUS_POSIX_SET(exitstatus);
2975 STATUS_POSIX_SET(255);
2985 register PERL_CONTEXT *cx;
2990 SvREFCNT_dec(PL_e_script);
2991 PL_e_script = Nullsv;
2994 POPSTACK_TO(PL_mainstack);
2995 if (cxstack_ix >= 0) {
2998 POPBLOCK(cx,PL_curpm);
3007 #endif /* PERL_OBJECT */
3013 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3015 read_e_script(int idx, SV *buf_sv, int maxlen)
3019 p = SvPVX(PL_e_script);
3020 nl = strchr(p, '\n');
3021 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3023 filter_del(read_e_script);
3026 sv_catpvn(buf_sv, p, nl-p);
3027 sv_chop(PL_e_script, nl);