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");
1752 #ifdef BINARY_BUILD_NOTICE
1753 BINARY_BUILD_NOTICE;
1756 Perl may be copied only under the terms of either the Artistic License or the\n\
1757 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1758 Complete documentation for Perl, including FAQ lists, should be found on\n\
1759 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1760 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1763 if (! (PL_dowarn & G_WARN_ALL_MASK))
1764 PL_dowarn |= G_WARN_ON;
1768 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1769 compiling.cop_warnings = WARN_ALL ;
1773 PL_dowarn = G_WARN_ALL_OFF;
1774 compiling.cop_warnings = WARN_NONE ;
1779 if (s[1] == '-') /* Additional switches on #! line. */
1784 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1790 #ifdef ALTERNATE_SHEBANG
1791 case 'S': /* OS/2 needs -S on "extproc" line. */
1799 croak("Can't emulate -%.1s on #! line",s);
1804 /* compliments of Tom Christiansen */
1806 /* unexec() can be found in the Gnu emacs distribution */
1807 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1818 prog = newSVpv(BIN_EXP, 0);
1819 sv_catpv(prog, "/perl");
1820 file = newSVpv(PL_origfilename, 0);
1821 sv_catpv(file, ".perldump");
1823 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1824 /* unexec prints msg to stderr in case of failure */
1825 PerlProc_exit(status);
1828 # include <lib$routines.h>
1829 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1831 ABORT(); /* for use with undump */
1836 /* initialize curinterp */
1841 #ifdef PERL_OBJECT /* XXX kludge */
1844 PL_chopset = " \n-"; \
1845 PL_copline = NOLINE; \
1846 PL_curcop = &PL_compiling;\
1847 PL_curcopdb = NULL; \
1850 PL_laststatval = -1; \
1851 PL_laststype = OP_STAT; \
1852 PL_maxscream = -1; \
1853 PL_maxsysfd = MAXSYSFD; \
1854 PL_statname = Nullsv; \
1855 PL_tmps_floor = -1; \
1857 PL_op_mask = NULL; \
1859 PL_laststatval = -1; \
1860 PL_laststype = OP_STAT; \
1861 PL_mess_sv = Nullsv; \
1862 PL_splitstr = " "; \
1863 PL_generation = 100; \
1864 PL_exitlist = NULL; \
1865 PL_exitlistlen = 0; \
1867 PL_in_clean_objs = FALSE; \
1868 PL_in_clean_all = FALSE; \
1869 PL_profiledata = NULL; \
1871 PL_rsfp_filters = Nullav; \
1875 # ifdef MULTIPLICITY
1876 # define PERLVAR(var,type)
1877 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1878 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1879 # include "intrpvar.h"
1880 # ifndef USE_THREADS
1881 # include "thrdvar.h"
1887 # define PERLVAR(var,type)
1888 # define PERLVARI(var,type,init) PL_##var = init;
1889 # define PERLVARIC(var,type,init) PL_##var = init;
1890 # include "intrpvar.h"
1891 # ifndef USE_THREADS
1892 # include "thrdvar.h"
1903 init_main_stash(void)
1908 /* Note that strtab is a rather special HV. Assumptions are made
1909 about not iterating on it, and not adding tie magic to it.
1910 It is properly deallocated in perl_destruct() */
1911 PL_strtab = newHV();
1913 MUTEX_INIT(&PL_strtab_mutex);
1915 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1916 hv_ksplit(PL_strtab, 512);
1918 PL_curstash = PL_defstash = newHV();
1919 PL_curstname = newSVpv("main",4);
1920 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1921 SvREFCNT_dec(GvHV(gv));
1922 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1924 HvNAME(PL_defstash) = savepv("main");
1925 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1926 GvMULTI_on(PL_incgv);
1927 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1928 GvMULTI_on(PL_hintgv);
1929 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1930 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1931 GvMULTI_on(PL_errgv);
1932 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1933 GvMULTI_on(PL_replgv);
1934 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1935 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1936 sv_setpvn(ERRSV, "", 0);
1937 PL_curstash = PL_defstash;
1938 PL_compiling.cop_stash = PL_defstash;
1939 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1940 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1941 /* We must init $/ before switches are processed. */
1942 sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
1946 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1954 PL_origfilename = savepv("-e");
1957 /* if find_script() returns, it returns a malloc()-ed value */
1958 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1960 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1961 char *s = scriptname + 8;
1962 *fdscript = atoi(s);
1966 scriptname = savepv(s + 1);
1967 Safefree(PL_origfilename);
1968 PL_origfilename = scriptname;
1973 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1974 if (strEQ(PL_origfilename,"-"))
1976 if (*fdscript >= 0) {
1977 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1978 #if defined(HAS_FCNTL) && defined(F_SETFD)
1980 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1983 else if (PL_preprocess) {
1984 char *cpp_cfg = CPPSTDIN;
1985 SV *cpp = newSVpv("",0);
1986 SV *cmd = NEWSV(0,0);
1988 if (strEQ(cpp_cfg, "cppstdin"))
1989 sv_catpvf(cpp, "%s/", BIN_EXP);
1990 sv_catpv(cpp, cpp_cfg);
1993 sv_catpv(sv,PRIVLIB_EXP);
1997 sed %s -e \"/^[^#]/b\" \
1998 -e \"/^#[ ]*include[ ]/b\" \
1999 -e \"/^#[ ]*define[ ]/b\" \
2000 -e \"/^#[ ]*if[ ]/b\" \
2001 -e \"/^#[ ]*ifdef[ ]/b\" \
2002 -e \"/^#[ ]*ifndef[ ]/b\" \
2003 -e \"/^#[ ]*else/b\" \
2004 -e \"/^#[ ]*elif[ ]/b\" \
2005 -e \"/^#[ ]*undef[ ]/b\" \
2006 -e \"/^#[ ]*endif/b\" \
2009 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2012 %s %s -e '/^[^#]/b' \
2013 -e '/^#[ ]*include[ ]/b' \
2014 -e '/^#[ ]*define[ ]/b' \
2015 -e '/^#[ ]*if[ ]/b' \
2016 -e '/^#[ ]*ifdef[ ]/b' \
2017 -e '/^#[ ]*ifndef[ ]/b' \
2018 -e '/^#[ ]*else/b' \
2019 -e '/^#[ ]*elif[ ]/b' \
2020 -e '/^#[ ]*undef[ ]/b' \
2021 -e '/^#[ ]*endif/b' \
2029 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2031 scriptname, cpp, sv, CPPMINUS);
2032 PL_doextract = FALSE;
2033 #ifdef IAMSUID /* actually, this is caught earlier */
2034 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2036 (void)seteuid(PL_uid); /* musn't stay setuid root */
2039 (void)setreuid((Uid_t)-1, PL_uid);
2041 #ifdef HAS_SETRESUID
2042 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2044 PerlProc_setuid(PL_uid);
2048 if (PerlProc_geteuid() != PL_uid)
2049 croak("Can't do seteuid!\n");
2051 #endif /* IAMSUID */
2052 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2056 else if (!*scriptname) {
2057 forbid_setid("program input from stdin");
2058 PL_rsfp = PerlIO_stdin();
2061 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2062 #if defined(HAS_FCNTL) && defined(F_SETFD)
2064 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2069 #ifndef IAMSUID /* in case script is not readable before setuid */
2071 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2072 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2075 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2076 croak("Can't do setuid\n");
2080 croak("Can't open perl script \"%s\": %s\n",
2081 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2086 validate_suid(char *validarg, char *scriptname, int fdscript)
2090 /* do we need to emulate setuid on scripts? */
2092 /* This code is for those BSD systems that have setuid #! scripts disabled
2093 * in the kernel because of a security problem. Merely defining DOSUID
2094 * in perl will not fix that problem, but if you have disabled setuid
2095 * scripts in the kernel, this will attempt to emulate setuid and setgid
2096 * on scripts that have those now-otherwise-useless bits set. The setuid
2097 * root version must be called suidperl or sperlN.NNN. If regular perl
2098 * discovers that it has opened a setuid script, it calls suidperl with
2099 * the same argv that it had. If suidperl finds that the script it has
2100 * just opened is NOT setuid root, it sets the effective uid back to the
2101 * uid. We don't just make perl setuid root because that loses the
2102 * effective uid we had before invoking perl, if it was different from the
2105 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2106 * be defined in suidperl only. suidperl must be setuid root. The
2107 * Configure script will set this up for you if you want it.
2114 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2115 croak("Can't stat script \"%s\"",PL_origfilename);
2116 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2120 #ifndef HAS_SETREUID
2121 /* On this access check to make sure the directories are readable,
2122 * there is actually a small window that the user could use to make
2123 * filename point to an accessible directory. So there is a faint
2124 * chance that someone could execute a setuid script down in a
2125 * non-accessible directory. I don't know what to do about that.
2126 * But I don't think it's too important. The manual lies when
2127 * it says access() is useful in setuid programs.
2129 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2130 croak("Permission denied");
2132 /* If we can swap euid and uid, then we can determine access rights
2133 * with a simple stat of the file, and then compare device and
2134 * inode to make sure we did stat() on the same file we opened.
2135 * Then we just have to make sure he or she can execute it.
2138 struct stat tmpstatbuf;
2142 setreuid(PL_euid,PL_uid) < 0
2145 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2148 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2149 croak("Can't swap uid and euid"); /* really paranoid */
2150 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2151 croak("Permission denied"); /* testing full pathname here */
2152 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2153 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2154 (void)PerlIO_close(PL_rsfp);
2155 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2156 PerlIO_printf(PL_rsfp,
2157 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2158 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2159 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2160 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2161 SvPVX(GvSV(PL_curcop->cop_filegv)),
2162 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2163 (void)PerlProc_pclose(PL_rsfp);
2165 croak("Permission denied\n");
2169 setreuid(PL_uid,PL_euid) < 0
2171 # if defined(HAS_SETRESUID)
2172 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2175 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2176 croak("Can't reswap uid and euid");
2177 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2178 croak("Permission denied\n");
2180 #endif /* HAS_SETREUID */
2181 #endif /* IAMSUID */
2183 if (!S_ISREG(PL_statbuf.st_mode))
2184 croak("Permission denied");
2185 if (PL_statbuf.st_mode & S_IWOTH)
2186 croak("Setuid/gid script is writable by world");
2187 PL_doswitches = FALSE; /* -s is insecure in suid */
2188 PL_curcop->cop_line++;
2189 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2190 strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
2191 croak("No #! line");
2192 s = SvPV(PL_linestr,PL_na)+2;
2194 while (!isSPACE(*s)) s++;
2195 for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
2196 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2197 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2198 croak("Not a perl script");
2199 while (*s == ' ' || *s == '\t') s++;
2201 * #! arg must be what we saw above. They can invoke it by
2202 * mentioning suidperl explicitly, but they may not add any strange
2203 * arguments beyond what #! says if they do invoke suidperl that way.
2205 len = strlen(validarg);
2206 if (strEQ(validarg," PHOOEY ") ||
2207 strnNE(s,validarg,len) || !isSPACE(s[len]))
2208 croak("Args must match #! line");
2211 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2212 PL_euid == PL_statbuf.st_uid)
2214 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2215 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2216 #endif /* IAMSUID */
2218 if (PL_euid) { /* oops, we're not the setuid root perl */
2219 (void)PerlIO_close(PL_rsfp);
2222 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2224 croak("Can't do setuid\n");
2227 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2229 (void)setegid(PL_statbuf.st_gid);
2232 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2234 #ifdef HAS_SETRESGID
2235 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2237 PerlProc_setgid(PL_statbuf.st_gid);
2241 if (PerlProc_getegid() != PL_statbuf.st_gid)
2242 croak("Can't do setegid!\n");
2244 if (PL_statbuf.st_mode & S_ISUID) {
2245 if (PL_statbuf.st_uid != PL_euid)
2247 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2250 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2252 #ifdef HAS_SETRESUID
2253 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2255 PerlProc_setuid(PL_statbuf.st_uid);
2259 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2260 croak("Can't do seteuid!\n");
2262 else if (PL_uid) { /* oops, mustn't run as root */
2264 (void)seteuid((Uid_t)PL_uid);
2267 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2269 #ifdef HAS_SETRESUID
2270 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2272 PerlProc_setuid((Uid_t)PL_uid);
2276 if (PerlProc_geteuid() != PL_uid)
2277 croak("Can't do seteuid!\n");
2280 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2281 croak("Permission denied\n"); /* they can't do this */
2284 else if (PL_preprocess)
2285 croak("-P not allowed for setuid/setgid script\n");
2286 else if (fdscript >= 0)
2287 croak("fd script not allowed in suidperl\n");
2289 croak("Script is not setuid/setgid in suidperl\n");
2291 /* We absolutely must clear out any saved ids here, so we */
2292 /* exec the real perl, substituting fd script for scriptname. */
2293 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2294 PerlIO_rewind(PL_rsfp);
2295 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2296 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2297 if (!PL_origargv[which])
2298 croak("Permission denied");
2299 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2300 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2301 #if defined(HAS_FCNTL) && defined(F_SETFD)
2302 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2304 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2305 croak("Can't do setuid\n");
2306 #endif /* IAMSUID */
2308 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2309 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2311 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2312 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2314 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2317 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2318 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2319 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2320 /* not set-id, must be wrapped */
2326 find_beginning(void)
2328 register char *s, *s2;
2330 /* skip forward in input to the real script? */
2333 while (PL_doextract) {
2334 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2335 croak("No Perl script found in input\n");
2336 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2337 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2338 PL_doextract = FALSE;
2339 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2341 while (*s == ' ' || *s == '\t') s++;
2343 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2344 if (strnEQ(s2-4,"perl",4))
2346 while (s = moreswitches(s)) ;
2348 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2349 croak("Can't chdir to %s",PL_cddir);
2358 PL_uid = (int)PerlProc_getuid();
2359 PL_euid = (int)PerlProc_geteuid();
2360 PL_gid = (int)PerlProc_getgid();
2361 PL_egid = (int)PerlProc_getegid();
2363 PL_uid |= PL_gid << 16;
2364 PL_euid |= PL_egid << 16;
2366 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2370 forbid_setid(char *s)
2372 if (PL_euid != PL_uid)
2373 croak("No %s allowed while running setuid", s);
2374 if (PL_egid != PL_gid)
2375 croak("No %s allowed while running setgid", s);
2382 PL_curstash = PL_debstash;
2383 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2384 AvREAL_off(PL_dbargs);
2385 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2386 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2387 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2388 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2389 sv_setiv(PL_DBsingle, 0);
2390 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2391 sv_setiv(PL_DBtrace, 0);
2392 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2393 sv_setiv(PL_DBsignal, 0);
2394 PL_curstash = PL_defstash;
2397 #ifndef STRESS_REALLOC
2398 #define REASONABLE(size) (size)
2400 #define REASONABLE(size) (1) /* unreasonable */
2404 init_stacks(ARGSproto)
2406 /* start with 128-item stack and 8K cxstack */
2407 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2408 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2409 PL_curstackinfo->si_type = PERLSI_MAIN;
2410 PL_curstack = PL_curstackinfo->si_stack;
2411 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2413 PL_stack_base = AvARRAY(PL_curstack);
2414 PL_stack_sp = PL_stack_base;
2415 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2417 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2420 PL_tmps_max = REASONABLE(128);
2422 New(54,PL_markstack,REASONABLE(32),I32);
2423 PL_markstack_ptr = PL_markstack;
2424 PL_markstack_max = PL_markstack + REASONABLE(32);
2428 New(54,PL_scopestack,REASONABLE(32),I32);
2429 PL_scopestack_ix = 0;
2430 PL_scopestack_max = REASONABLE(32);
2432 New(54,PL_savestack,REASONABLE(128),ANY);
2433 PL_savestack_ix = 0;
2434 PL_savestack_max = REASONABLE(128);
2436 New(54,PL_retstack,REASONABLE(16),OP*);
2438 PL_retstack_max = REASONABLE(16);
2447 while (PL_curstackinfo->si_next)
2448 PL_curstackinfo = PL_curstackinfo->si_next;
2449 while (PL_curstackinfo) {
2450 PERL_SI *p = PL_curstackinfo->si_prev;
2451 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2452 Safefree(PL_curstackinfo->si_cxstack);
2453 Safefree(PL_curstackinfo);
2454 PL_curstackinfo = p;
2456 Safefree(PL_tmps_stack);
2457 Safefree(PL_markstack);
2458 Safefree(PL_scopestack);
2459 Safefree(PL_savestack);
2460 Safefree(PL_retstack);
2462 Safefree(PL_debname);
2463 Safefree(PL_debdelim);
2468 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2479 lex_start(PL_linestr);
2481 PL_subname = newSVpv("main",4);
2485 init_predump_symbols(void)
2491 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2492 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2493 GvMULTI_on(PL_stdingv);
2494 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2495 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2497 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2499 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2501 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2503 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2505 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2507 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2508 GvMULTI_on(othergv);
2509 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2510 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2512 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2514 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2517 PL_osname = savepv(OSNAME);
2521 init_postdump_symbols(register int argc, register char **argv, register char **env)
2528 argc--,argv++; /* skip name of script */
2529 if (PL_doswitches) {
2530 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2533 if (argv[0][1] == '-') {
2537 if (s = strchr(argv[0], '=')) {
2539 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2542 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2545 PL_toptarget = NEWSV(0,0);
2546 sv_upgrade(PL_toptarget, SVt_PVFM);
2547 sv_setpvn(PL_toptarget, "", 0);
2548 PL_bodytarget = NEWSV(0,0);
2549 sv_upgrade(PL_bodytarget, SVt_PVFM);
2550 sv_setpvn(PL_bodytarget, "", 0);
2551 PL_formtarget = PL_bodytarget;
2554 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2555 sv_setpv(GvSV(tmpgv),PL_origfilename);
2556 magicname("0", "0", 1);
2558 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2559 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2560 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2561 GvMULTI_on(PL_argvgv);
2562 (void)gv_AVadd(PL_argvgv);
2563 av_clear(GvAVn(PL_argvgv));
2564 for (; argc > 0; argc--,argv++) {
2565 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2568 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2570 GvMULTI_on(PL_envgv);
2571 hv = GvHVn(PL_envgv);
2572 hv_magic(hv, PL_envgv, 'E');
2573 #ifndef VMS /* VMS doesn't have environ array */
2574 /* Note that if the supplied env parameter is actually a copy
2575 of the global environ then it may now point to free'd memory
2576 if the environment has been modified since. To avoid this
2577 problem we treat env==NULL as meaning 'use the default'
2582 environ[0] = Nullch;
2583 for (; *env; env++) {
2584 if (!(s = strchr(*env,'=')))
2590 sv = newSVpv(s--,0);
2591 (void)hv_store(hv, *env, s - *env, sv, 0);
2593 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2594 /* Sins of the RTL. See note in my_setenv(). */
2595 (void)PerlEnv_putenv(savepv(*env));
2599 #ifdef DYNAMIC_ENV_FETCH
2600 HvNAME(hv) = savepv(ENV_HV_NAME);
2604 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2605 sv_setiv(GvSV(tmpgv), (IV)getpid());
2614 s = PerlEnv_getenv("PERL5LIB");
2618 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2620 /* Treat PERL5?LIB as a possible search list logical name -- the
2621 * "natural" VMS idiom for a Unix path string. We allow each
2622 * element to be a set of |-separated directories for compatibility.
2626 if (my_trnlnm("PERL5LIB",buf,0))
2627 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2629 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2633 /* Use the ~-expanded versions of APPLLIB (undocumented),
2634 ARCHLIB PRIVLIB SITEARCH and SITELIB
2637 incpush(APPLLIB_EXP, TRUE);
2641 incpush(ARCHLIB_EXP, FALSE);
2644 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2647 incpush(PRIVLIB_EXP, TRUE);
2649 incpush(PRIVLIB_EXP, FALSE);
2653 incpush(SITEARCH_EXP, FALSE);
2657 incpush(SITELIB_EXP, TRUE);
2659 incpush(SITELIB_EXP, FALSE);
2663 incpush(".", FALSE);
2667 # define PERLLIB_SEP ';'
2670 # define PERLLIB_SEP '|'
2672 # define PERLLIB_SEP ':'
2675 #ifndef PERLLIB_MANGLE
2676 # define PERLLIB_MANGLE(s,n) (s)
2680 incpush(char *p, int addsubdirs)
2682 SV *subdir = Nullsv;
2688 subdir = sv_newmortal();
2689 if (!PL_archpat_auto) {
2690 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2691 + sizeof("//auto"));
2692 New(55, PL_archpat_auto, len, char);
2693 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2695 for (len = sizeof(ARCHNAME) + 2;
2696 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2697 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2702 /* Break at all separators */
2704 SV *libdir = NEWSV(55,0);
2707 /* skip any consecutive separators */
2708 while ( *p == PERLLIB_SEP ) {
2709 /* Uncomment the next line for PATH semantics */
2710 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2714 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2715 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2720 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2721 p = Nullch; /* break out */
2725 * BEFORE pushing libdir onto @INC we may first push version- and
2726 * archname-specific sub-directories.
2729 struct stat tmpstatbuf;
2734 if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
2736 while (unix[len-1] == '/') len--; /* Cosmetic */
2737 sv_usepvn(libdir,unix,len);
2740 PerlIO_printf(PerlIO_stderr(),
2741 "Failed to unixify @INC element \"%s\"\n",
2742 SvPV(libdir,PL_na));
2744 /* .../archname/version if -d .../archname/version/auto */
2745 sv_setsv(subdir, libdir);
2746 sv_catpv(subdir, PL_archpat_auto);
2747 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2748 S_ISDIR(tmpstatbuf.st_mode))
2749 av_push(GvAVn(PL_incgv),
2750 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2752 /* .../archname if -d .../archname/auto */
2753 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2754 strlen(PL_patchlevel) + 1, "", 0);
2755 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2756 S_ISDIR(tmpstatbuf.st_mode))
2757 av_push(GvAVn(PL_incgv),
2758 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2761 /* finally push this lib directory on the end of @INC */
2762 av_push(GvAVn(PL_incgv), libdir);
2767 STATIC struct perl_thread *
2770 struct perl_thread *thr;
2773 Newz(53, thr, 1, struct perl_thread);
2774 PL_curcop = &PL_compiling;
2775 thr->cvcache = newHV();
2776 thr->threadsv = newAV();
2777 /* thr->threadsvp is set when find_threadsv is called */
2778 thr->specific = newAV();
2779 thr->errhv = newHV();
2780 thr->flags = THRf_R_JOINABLE;
2781 MUTEX_INIT(&thr->mutex);
2782 /* Handcraft thrsv similarly to mess_sv */
2783 New(53, PL_thrsv, 1, SV);
2784 Newz(53, xpv, 1, XPV);
2785 SvFLAGS(PL_thrsv) = SVt_PV;
2786 SvANY(PL_thrsv) = (void*)xpv;
2787 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2788 SvPVX(PL_thrsv) = (char*)thr;
2789 SvCUR_set(PL_thrsv, sizeof(thr));
2790 SvLEN_set(PL_thrsv, sizeof(thr));
2791 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2792 thr->oursv = PL_thrsv;
2793 PL_chopset = " \n-";
2795 MUTEX_LOCK(&PL_threads_mutex);
2800 MUTEX_UNLOCK(&PL_threads_mutex);
2802 #ifdef HAVE_THREAD_INTERN
2803 init_thread_intern(thr);
2806 #ifdef SET_THREAD_SELF
2807 SET_THREAD_SELF(thr);
2809 thr->self = pthread_self();
2810 #endif /* SET_THREAD_SELF */
2814 * These must come after the SET_THR because sv_setpvn does
2815 * SvTAINT and the taint fields require dTHR.
2817 PL_toptarget = NEWSV(0,0);
2818 sv_upgrade(PL_toptarget, SVt_PVFM);
2819 sv_setpvn(PL_toptarget, "", 0);
2820 PL_bodytarget = NEWSV(0,0);
2821 sv_upgrade(PL_bodytarget, SVt_PVFM);
2822 sv_setpvn(PL_bodytarget, "", 0);
2823 PL_formtarget = PL_bodytarget;
2824 thr->errsv = newSVpv("", 0);
2825 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2828 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2829 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2831 PL_reginterp_cnt = 0;
2835 #endif /* USE_THREADS */
2838 call_list(I32 oldscope, AV *paramList)
2841 line_t oldline = PL_curcop->cop_line;
2846 while (AvFILL(paramList) >= 0) {
2847 CV *cv = (CV*)av_shift(paramList);
2855 PUSHMARK(PL_stack_sp);
2856 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2857 (void)SvPV(atsv, len);
2860 PL_curcop = &PL_compiling;
2861 PL_curcop->cop_line = oldline;
2862 if (paramList == PL_beginav)
2863 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2865 sv_catpv(atsv, "END failed--cleanup aborted");
2866 while (PL_scopestack_ix > oldscope)
2868 croak("%s", SvPVX(atsv));
2876 /* my_exit() was called */
2877 while (PL_scopestack_ix > oldscope)
2880 PL_curstash = PL_defstash;
2882 call_list(oldscope, PL_endav);
2884 PL_curcop = &PL_compiling;
2885 PL_curcop->cop_line = oldline;
2886 if (PL_statusvalue) {
2887 if (paramList == PL_beginav)
2888 croak("BEGIN failed--compilation aborted");
2890 croak("END failed--cleanup aborted");
2895 if (!PL_restartop) {
2896 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2901 PL_curcop = &PL_compiling;
2902 PL_curcop->cop_line = oldline;
2914 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2915 thr, (unsigned long) status));
2924 STATUS_NATIVE_SET(status);
2931 my_failure_exit(void)
2934 if (vaxc$errno & 1) {
2935 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2936 STATUS_NATIVE_SET(44);
2939 if (!vaxc$errno && errno) /* unlikely */
2940 STATUS_NATIVE_SET(44);
2942 STATUS_NATIVE_SET(vaxc$errno);
2947 STATUS_POSIX_SET(errno);
2949 exitstatus = STATUS_POSIX >> 8;
2950 if (exitstatus & 255)
2951 STATUS_POSIX_SET(exitstatus);
2953 STATUS_POSIX_SET(255);
2963 register PERL_CONTEXT *cx;
2968 SvREFCNT_dec(PL_e_script);
2969 PL_e_script = Nullsv;
2972 POPSTACK_TO(PL_mainstack);
2973 if (cxstack_ix >= 0) {
2976 POPBLOCK(cx,PL_curpm);
2985 #endif /* PERL_OBJECT */
2991 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
2993 read_e_script(int idx, SV *buf_sv, int maxlen)
2997 p = SvPVX(PL_e_script);
2998 nl = strchr(p, '\n');
2999 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3001 filter_del(read_e_script);
3004 sv_catpvn(buf_sv, p, nl-p);
3005 sv_chop(PL_e_script, nl);