3 * Copyright (c) 1987-1998 Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
16 #include "patchlevel.h"
18 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
23 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
24 char *getenv _((char *)); /* Usually in <stdlib.h> */
40 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
47 static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
49 static void find_beginning _((void));
50 static void forbid_setid _((char *));
51 static void incpush _((char *, int));
52 static void init_interp _((void));
53 static void init_ids _((void));
54 static void init_debugger _((void));
55 static void init_lexer _((void));
56 static void init_main_stash _((void));
58 static struct perl_thread * init_main_thread _((void));
59 #endif /* USE_THREADS */
60 static void init_perllib _((void));
61 static void init_postdump_symbols _((int, char **, char **));
62 static void init_predump_symbols _((void));
63 static void my_exit_jump _((void)) __attribute__((noreturn));
64 static void nuke_stacks _((void));
65 static void open_script _((char *, bool, SV *, int *fd));
66 static void usage _((char *));
67 static void validate_suid _((char *, char*, int));
68 static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
72 CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
73 IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
75 CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
85 PerlInterpreter *sv_interp;
88 New(53, sv_interp, 1, PerlInterpreter);
91 #endif /* PERL_OBJECT */
97 perl_construct(register PerlInterpreter *sv_interp)
103 struct perl_thread *thr;
104 #endif /* FAKE_THREADS */
105 #endif /* USE_THREADS */
108 if (!(PL_curinterp = sv_interp))
114 Zero(sv_interp, 1, PerlInterpreter);
117 /* Init the real globals (and main thread)? */
122 #ifdef ALLOC_THREAD_KEY
125 if (pthread_key_create(&PL_thr_key, 0))
126 croak("panic: pthread_key_create");
128 MUTEX_INIT(&PL_sv_mutex);
129 MUTEX_INIT(&PL_cred_mutex);
131 * Safe to use basic SV functions from now on (though
132 * not things like mortals or tainting yet).
134 MUTEX_INIT(&PL_eval_mutex);
135 COND_INIT(&PL_eval_cond);
136 MUTEX_INIT(&PL_threads_mutex);
137 COND_INIT(&PL_nthreads_cond);
138 #ifdef EMULATE_ATOMIC_REFCOUNTS
139 MUTEX_INIT(&PL_svref_mutex);
140 #endif /* EMULATE_ATOMIC_REFCOUNTS */
142 MUTEX_INIT(&PL_cred_mutex);
144 thr = init_main_thread();
145 #endif /* USE_THREADS */
147 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
149 PL_linestr = NEWSV(65,79);
150 sv_upgrade(PL_linestr,SVt_PVIV);
152 if (!SvREADONLY(&PL_sv_undef)) {
153 /* set read-only and try to insure than we wont see REFCNT==0
156 SvREADONLY_on(&PL_sv_undef);
157 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
159 sv_setpv(&PL_sv_no,PL_No);
161 SvREADONLY_on(&PL_sv_no);
162 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
164 sv_setpv(&PL_sv_yes,PL_Yes);
166 SvREADONLY_on(&PL_sv_yes);
167 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
172 /* PL_sighandlerp = sighandler; */
174 PL_sighandlerp = sighandler;
176 PL_pidstatus = newHV();
180 * There is no way we can refer to them from Perl so close them to save
181 * space. The other alternative would be to provide STDAUX and STDPRN
184 (void)fclose(stdaux);
185 (void)fclose(stdprn);
189 PL_nrs = newSVpv("\n", 1);
190 PL_rs = SvREFCNT_inc(PL_nrs);
195 PL_perl_destruct_level = 1;
197 if (PL_perl_destruct_level > 0)
202 PL_lex_state = LEX_NOTPARSING;
204 PL_start_env.je_prev = NULL;
205 PL_start_env.je_ret = -1;
206 PL_start_env.je_mustcatch = TRUE;
207 PL_top_env = &PL_start_env;
210 SET_NUMERIC_STANDARD();
211 #if defined(SUBVERSION) && SUBVERSION > 0
212 sprintf(PL_patchlevel, "%7.5f", (double) 5
213 + ((double) PATCHLEVEL / (double) 1000)
214 + ((double) SUBVERSION / (double) 100000));
216 sprintf(PL_patchlevel, "%5.3f", (double) 5 +
217 ((double) PATCHLEVEL / (double) 1000));
220 #if defined(LOCAL_PATCH_COUNT)
221 PL_localpatches = local_patches; /* For possible -v */
224 PerlIO_init(); /* Hook to IO system */
226 PL_fdpid = newAV(); /* for remembering popen pids by fd */
227 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
230 New(51,PL_debname,128,char);
231 New(52,PL_debdelim,128,char);
241 perl_destruct(register PerlInterpreter *sv_interp)
245 int destruct_level; /* 0=none, 1=full, 2=full with checks */
250 #endif /* USE_THREADS */
253 if (!(PL_curinterp = sv_interp))
259 /* Pass 1 on any remaining threads: detach joinables, join zombies */
261 MUTEX_LOCK(&PL_threads_mutex);
262 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
263 "perl_destruct: waiting for %d threads...\n",
265 for (t = thr->next; t != thr; t = t->next) {
266 MUTEX_LOCK(&t->mutex);
267 switch (ThrSTATE(t)) {
270 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
271 "perl_destruct: joining zombie %p\n", t));
272 ThrSETSTATE(t, THRf_DEAD);
273 MUTEX_UNLOCK(&t->mutex);
276 * The SvREFCNT_dec below may take a long time (e.g. av
277 * may contain an object scalar whose destructor gets
278 * called) so we have to unlock threads_mutex and start
281 MUTEX_UNLOCK(&PL_threads_mutex);
283 SvREFCNT_dec((SV*)av);
284 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
285 "perl_destruct: joined zombie %p OK\n", t));
287 case THRf_R_JOINABLE:
288 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
289 "perl_destruct: detaching thread %p\n", t));
290 ThrSETSTATE(t, THRf_R_DETACHED);
292 * We unlock threads_mutex and t->mutex in the opposite order
293 * from which we locked them just so that DETACH won't
294 * deadlock if it panics. It's only a breach of good style
295 * not a bug since they are unlocks not locks.
297 MUTEX_UNLOCK(&PL_threads_mutex);
299 MUTEX_UNLOCK(&t->mutex);
302 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
303 "perl_destruct: ignoring %p (state %u)\n",
305 MUTEX_UNLOCK(&t->mutex);
306 /* fall through and out */
309 /* We leave the above "Pass 1" loop with threads_mutex still locked */
311 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
312 while (PL_nthreads > 1)
314 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
315 "perl_destruct: final wait for %d threads\n",
317 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
319 /* At this point, we're the last thread */
320 MUTEX_UNLOCK(&PL_threads_mutex);
321 DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
322 MUTEX_DESTROY(&PL_threads_mutex);
323 COND_DESTROY(&PL_nthreads_cond);
324 #endif /* !defined(FAKE_THREADS) */
325 #endif /* USE_THREADS */
327 destruct_level = PL_perl_destruct_level;
331 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
333 if (destruct_level < i)
346 /* We must account for everything. */
348 /* Destroy the main CV and syntax tree */
350 PL_curpad = AvARRAY(PL_comppad);
351 op_free(PL_main_root);
352 PL_main_root = Nullop;
354 PL_curcop = &PL_compiling;
355 PL_main_start = Nullop;
356 SvREFCNT_dec(PL_main_cv);
360 if (PL_sv_objcount) {
362 * Try to destruct global references. We do this first so that the
363 * destructors and destructees still exist. Some sv's might remain.
364 * 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);
552 Safefree(PL_reg_curpm);
553 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
554 Safefree(PL_op_mask);
556 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
558 DEBUG_P(debprofdump());
560 MUTEX_DESTROY(&PL_strtab_mutex);
561 MUTEX_DESTROY(&PL_sv_mutex);
562 MUTEX_DESTROY(&PL_cred_mutex);
563 MUTEX_DESTROY(&PL_eval_mutex);
564 MUTEX_DESTROY(&PL_cred_mutex);
565 COND_DESTROY(&PL_eval_cond);
567 /* As the penultimate thing, free the non-arena SV for thrsv */
568 Safefree(SvPVX(PL_thrsv));
569 Safefree(SvANY(PL_thrsv));
572 #endif /* USE_THREADS */
574 /* As the absolutely last thing, free the non-arena SV for mess() */
577 /* it could have accumulated taint magic */
578 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
581 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
582 moremagic = mg->mg_moremagic;
583 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
584 Safefree(mg->mg_ptr);
588 /* we know that type >= SVt_PV */
589 SvOOK_off(PL_mess_sv);
590 Safefree(SvPVX(PL_mess_sv));
591 Safefree(SvANY(PL_mess_sv));
592 Safefree(PL_mess_sv);
601 perl_free(PerlInterpreter *sv_interp)
607 if (!(PL_curinterp = sv_interp))
615 perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
617 perl_atexit(void (*fn) (void *), void *ptr)
620 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
621 PL_exitlist[PL_exitlistlen].fn = fn;
622 PL_exitlist[PL_exitlistlen].ptr = ptr;
628 perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
630 perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
636 char *scriptname = NULL;
637 VOL bool dosearch = FALSE;
645 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
648 croak("suidperl is no longer needed since the kernel can now execute\n\
649 setuid perl scripts securely.\n");
654 if (!(PL_curinterp = sv_interp))
658 #if defined(NeXT) && defined(__DYNAMIC__)
659 _dyld_lookup_and_bind
660 ("__environ", (unsigned long *) &environ_pointer, NULL);
665 #ifndef VMS /* VMS doesn't have environ array */
666 PL_origenviron = environ;
671 /* Come here if running an undumped a.out. */
673 PL_origfilename = savepv(argv[0]);
674 PL_do_undump = FALSE;
675 cxstack_ix = -1; /* start label stack again */
677 init_postdump_symbols(argc,argv,env);
682 PL_curpad = AvARRAY(PL_comppad);
683 op_free(PL_main_root);
684 PL_main_root = Nullop;
686 PL_main_start = Nullop;
687 SvREFCNT_dec(PL_main_cv);
691 oldscope = PL_scopestack_ix;
692 PL_dowarn = G_WARN_OFF;
700 /* my_exit() was called */
701 while (PL_scopestack_ix > oldscope)
704 PL_curstash = PL_defstash;
706 call_list(oldscope, PL_endav);
708 return STATUS_NATIVE_EXPORT;
711 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
715 sv_setpvn(PL_linestr,"",0);
716 sv = newSVpv("",0); /* first used for -I flags */
720 for (argc--,argv++; argc > 0; argc--,argv++) {
721 if (argv[0][0] != '-' || !argv[0][1])
725 validarg = " PHOOEY ";
753 if (s = moreswitches(s))
763 if (PL_euid != PL_uid || PL_egid != PL_gid)
764 croak("No -e allowed in setuid scripts");
766 PL_e_script = newSVpv("",0);
767 filter_add(read_e_script, NULL);
770 sv_catpv(PL_e_script, s);
772 sv_catpv(PL_e_script, argv[1]);
776 croak("No code specified for -e");
777 sv_catpv(PL_e_script, "\n");
780 case 'I': /* -I handled both here and in moreswitches() */
782 if (!*++s && (s=argv[1]) != Nullch) {
785 while (s && isSPACE(*s))
789 for (e = s; *e && !isSPACE(*e); e++) ;
796 } /* XXX else croak? */
800 PL_preprocess = TRUE;
810 PL_preambleav = newAV();
811 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
813 PL_Sv = newSVpv("print myconfig();",0);
815 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
817 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
819 #if defined(DEBUGGING) || defined(MULTIPLICITY)
820 sv_catpv(PL_Sv,"\" Compile-time options:");
822 sv_catpv(PL_Sv," DEBUGGING");
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,"q\" \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:");
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 /* XXX unsafe for threads if eval_owner isn't held */
1151 if (create && !GvCVu(gv))
1152 return newSUB(start_subparse(FALSE, 0),
1153 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1161 /* Be sure to refetch the stack pointer after calling these routines. */
1164 perl_call_argv(char *sub_name, I32 flags, register char **argv)
1166 /* See G_* flags in cop.h */
1167 /* null terminated arg list */
1174 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1179 return perl_call_pv(sub_name, flags);
1183 perl_call_pv(char *sub_name, I32 flags)
1184 /* name of the subroutine */
1185 /* See G_* flags in cop.h */
1187 return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
1191 perl_call_method(char *methname, I32 flags)
1192 /* name of the subroutine */
1193 /* See G_* flags in cop.h */
1199 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1204 return perl_call_sv(*PL_stack_sp--, flags);
1207 /* May be called with any of a CV, a GV, or an SV containing the name. */
1209 perl_call_sv(SV *sv, I32 flags)
1211 /* See G_* flags in cop.h */
1214 LOGOP myop; /* fake syntax tree node */
1218 bool oldcatch = CATCH_GET;
1223 if (flags & G_DISCARD) {
1228 Zero(&myop, 1, LOGOP);
1229 myop.op_next = Nullop;
1230 if (!(flags & G_NOARGS))
1231 myop.op_flags |= OPf_STACKED;
1232 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1233 (flags & G_ARRAY) ? OPf_WANT_LIST :
1238 EXTEND(PL_stack_sp, 1);
1239 *++PL_stack_sp = sv;
1241 oldscope = PL_scopestack_ix;
1243 if (PERLDB_SUB && PL_curstash != PL_debstash
1244 /* Handle first BEGIN of -d. */
1245 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1246 /* Try harder, since this may have been a sighandler, thus
1247 * curstash may be meaningless. */
1248 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1249 && !(flags & G_NODEBUG))
1250 PL_op->op_private |= OPpENTERSUB_DB;
1252 if (flags & G_EVAL) {
1253 cLOGOP->op_other = PL_op;
1255 /* we're trying to emulate pp_entertry() here */
1257 register PERL_CONTEXT *cx;
1258 I32 gimme = GIMME_V;
1263 push_return(PL_op->op_next);
1264 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1266 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1269 if (flags & G_KEEPERR)
1284 /* my_exit() was called */
1285 PL_curstash = PL_defstash;
1289 croak("Callback called exit");
1294 PL_op = PL_restartop;
1298 PL_stack_sp = PL_stack_base + oldmark;
1299 if (flags & G_ARRAY)
1303 *++PL_stack_sp = &PL_sv_undef;
1311 if (PL_op == (OP*)&myop)
1312 PL_op = pp_entersub(ARGS);
1315 retval = PL_stack_sp - (PL_stack_base + oldmark);
1316 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1320 if (flags & G_EVAL) {
1321 if (PL_scopestack_ix > oldscope) {
1325 register PERL_CONTEXT *cx;
1337 CATCH_SET(oldcatch);
1339 if (flags & G_DISCARD) {
1340 PL_stack_sp = PL_stack_base + oldmark;
1349 /* Eval a string. The G_EVAL flag is always assumed. */
1352 perl_eval_sv(SV *sv, I32 flags)
1354 /* See G_* flags in cop.h */
1357 UNOP myop; /* fake syntax tree node */
1358 I32 oldmark = SP - PL_stack_base;
1365 if (flags & G_DISCARD) {
1372 Zero(PL_op, 1, UNOP);
1373 EXTEND(PL_stack_sp, 1);
1374 *++PL_stack_sp = sv;
1375 oldscope = PL_scopestack_ix;
1377 if (!(flags & G_NOARGS))
1378 myop.op_flags = OPf_STACKED;
1379 myop.op_next = Nullop;
1380 myop.op_type = OP_ENTEREVAL;
1381 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1382 (flags & G_ARRAY) ? OPf_WANT_LIST :
1384 if (flags & G_KEEPERR)
1385 myop.op_flags |= OPf_SPECIAL;
1395 /* my_exit() was called */
1396 PL_curstash = PL_defstash;
1400 croak("Callback called exit");
1405 PL_op = PL_restartop;
1409 PL_stack_sp = PL_stack_base + oldmark;
1410 if (flags & G_ARRAY)
1414 *++PL_stack_sp = &PL_sv_undef;
1419 if (PL_op == (OP*)&myop)
1420 PL_op = pp_entereval(ARGS);
1423 retval = PL_stack_sp - (PL_stack_base + oldmark);
1424 if (!(flags & G_KEEPERR))
1429 if (flags & G_DISCARD) {
1430 PL_stack_sp = PL_stack_base + oldmark;
1440 perl_eval_pv(char *p, I32 croak_on_error)
1443 SV* sv = newSVpv(p, 0);
1446 perl_eval_sv(sv, G_SCALAR);
1453 if (croak_on_error && SvTRUE(ERRSV)) {
1455 croak(SvPVx(ERRSV, n_a));
1461 /* Require a module. */
1464 perl_require_pv(char *pv)
1468 PUSHSTACKi(PERLSI_REQUIRE);
1470 sv = sv_newmortal();
1471 sv_setpv(sv, "require '");
1474 perl_eval_sv(sv, G_DISCARD);
1480 magicname(char *sym, char *name, I32 namlen)
1484 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1485 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1489 usage(char *name) /* XXX move this out into a module ? */
1492 /* This message really ought to be max 23 lines.
1493 * Removed -h because the user already knows that opton. Others? */
1495 static char *usage_msg[] = {
1496 "-0[octal] specify record separator (\\0, if no argument)",
1497 "-a autosplit mode with -n or -p (splits $_ into @F)",
1498 "-c check syntax only (runs BEGIN and END blocks)",
1499 "-d[:debugger] run scripts under debugger",
1500 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1501 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1502 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1503 "-i[extension] edit <> files in place (make backup if extension supplied)",
1504 "-Idirectory specify @INC/#include directory (may be used more than once)",
1505 "-l[octal] enable line ending processing, specifies line terminator",
1506 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1507 "-n assume 'while (<>) { ... }' loop around your script",
1508 "-p assume loop like -n but print line also like sed",
1509 "-P run script through C preprocessor before compilation",
1510 "-s enable some switch parsing for switches after script name",
1511 "-S look for the script using PATH environment variable",
1512 "-T turn on tainting checks",
1513 "-u dump core after parsing script",
1514 "-U allow unsafe operations",
1515 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1516 "-V[:variable] print perl configuration information",
1517 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1518 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1522 char **p = usage_msg;
1524 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1526 printf("\n %s", *p++);
1529 /* This routine handles any switches that can be given during run */
1532 moreswitches(char *s)
1541 rschar = scan_oct(s, 4, &numlen);
1542 SvREFCNT_dec(PL_nrs);
1543 if (rschar & ~((U8)~0))
1544 PL_nrs = &PL_sv_undef;
1545 else if (!rschar && numlen >= 2)
1546 PL_nrs = newSVpv("", 0);
1549 PL_nrs = newSVpv(&ch, 1);
1555 PL_splitstr = savepv(s + 1);
1569 if (*s == ':' || *s == '=') {
1570 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1574 PL_perldb = PERLDB_ALL;
1581 if (isALPHA(s[1])) {
1582 static char debopts[] = "psltocPmfrxuLHXDS";
1585 for (s++; *s && (d = strchr(debopts,*s)); s++)
1586 PL_debug |= 1 << (d - debopts);
1589 PL_debug = atoi(s+1);
1590 for (s++; isDIGIT(*s); s++) ;
1592 PL_debug |= 0x80000000;
1594 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1595 for (s++; isALNUM(*s); s++) ;
1600 usage(PL_origargv[0]);
1604 Safefree(PL_inplace);
1605 PL_inplace = savepv(s+1);
1607 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1610 if (*s == '-') /* Additional switches on #! line. */
1614 case 'I': /* -I handled both here and in parse_perl() */
1617 while (*s && isSPACE(*s))
1621 for (e = s; *e && !isSPACE(*e); e++) ;
1622 p = savepvn(s, e-s);
1628 croak("No space allowed after -I");
1636 PL_ors = savepv("\n");
1638 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1643 if (RsPARA(PL_nrs)) {
1648 PL_ors = SvPV(PL_nrs, PL_orslen);
1649 PL_ors = savepvn(PL_ors, PL_orslen);
1653 forbid_setid("-M"); /* XXX ? */
1656 forbid_setid("-m"); /* XXX ? */
1661 /* -M-foo == 'no foo' */
1662 if (*s == '-') { use = "no "; ++s; }
1663 sv = newSVpv(use,0);
1665 /* We allow -M'Module qw(Foo Bar)' */
1666 while(isALNUM(*s) || *s==':') ++s;
1668 sv_catpv(sv, start);
1669 if (*(start-1) == 'm') {
1671 croak("Can't use '%c' after -mname", *s);
1672 sv_catpv( sv, " ()");
1675 sv_catpvn(sv, start, s-start);
1676 sv_catpv(sv, " split(/,/,q{");
1681 if (PL_preambleav == NULL)
1682 PL_preambleav = newAV();
1683 av_push(PL_preambleav, sv);
1686 croak("No space allowed after -%c", *(s-1));
1698 PL_doswitches = TRUE;
1703 croak("Too late for \"-T\" option");
1707 PL_do_undump = TRUE;
1715 #if defined(SUBVERSION) && SUBVERSION > 0
1716 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1717 PATCHLEVEL, SUBVERSION, ARCHNAME);
1719 printf("\nThis is perl, version %s built for %s",
1720 PL_patchlevel, ARCHNAME);
1722 #if defined(LOCAL_PATCH_COUNT)
1723 if (LOCAL_PATCH_COUNT > 0)
1724 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1725 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1728 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1730 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1733 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1734 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1737 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1738 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1741 printf("atariST series port, ++jrb bammi@cadence.com\n");
1744 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1747 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1750 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
1753 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n");
1756 printf("VM/ESA port by Neale Ferguson, 1998\n");
1759 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n");
1762 printf("MiNT port by Guido Flohr, 1997\n");
1764 #ifdef BINARY_BUILD_NOTICE
1765 BINARY_BUILD_NOTICE;
1768 Perl may be copied only under the terms of either the Artistic License or the\n\
1769 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1770 Complete documentation for Perl, including FAQ lists, should be found on\n\
1771 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1772 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1775 if (! (PL_dowarn & G_WARN_ALL_MASK))
1776 PL_dowarn |= G_WARN_ON;
1780 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1781 PL_compiling.cop_warnings = WARN_ALL ;
1785 PL_dowarn = G_WARN_ALL_OFF;
1786 PL_compiling.cop_warnings = WARN_NONE ;
1791 if (s[1] == '-') /* Additional switches on #! line. */
1796 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1802 #ifdef ALTERNATE_SHEBANG
1803 case 'S': /* OS/2 needs -S on "extproc" line. */
1811 croak("Can't emulate -%.1s on #! line",s);
1816 /* compliments of Tom Christiansen */
1818 /* unexec() can be found in the Gnu emacs distribution */
1819 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1830 prog = newSVpv(BIN_EXP, 0);
1831 sv_catpv(prog, "/perl");
1832 file = newSVpv(PL_origfilename, 0);
1833 sv_catpv(file, ".perldump");
1835 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1836 /* unexec prints msg to stderr in case of failure */
1837 PerlProc_exit(status);
1840 # include <lib$routines.h>
1841 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1843 ABORT(); /* for use with undump */
1848 /* initialize curinterp */
1853 #ifdef PERL_OBJECT /* XXX kludge */
1856 PL_chopset = " \n-"; \
1857 PL_copline = NOLINE; \
1858 PL_curcop = &PL_compiling;\
1859 PL_curcopdb = NULL; \
1862 PL_dumpindent = 4; \
1863 PL_laststatval = -1; \
1864 PL_laststype = OP_STAT; \
1865 PL_maxscream = -1; \
1866 PL_maxsysfd = MAXSYSFD; \
1867 PL_statname = Nullsv; \
1868 PL_tmps_floor = -1; \
1870 PL_op_mask = NULL; \
1872 PL_laststatval = -1; \
1873 PL_laststype = OP_STAT; \
1874 PL_mess_sv = Nullsv; \
1875 PL_splitstr = " "; \
1876 PL_generation = 100; \
1877 PL_exitlist = NULL; \
1878 PL_exitlistlen = 0; \
1880 PL_in_clean_objs = FALSE; \
1881 PL_in_clean_all = FALSE; \
1882 PL_profiledata = NULL; \
1884 PL_rsfp_filters = Nullav; \
1889 # ifdef MULTIPLICITY
1890 # define PERLVAR(var,type)
1891 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1892 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1893 # include "intrpvar.h"
1894 # ifndef USE_THREADS
1895 # include "thrdvar.h"
1901 # define PERLVAR(var,type)
1902 # define PERLVARI(var,type,init) PL_##var = init;
1903 # define PERLVARIC(var,type,init) PL_##var = init;
1904 # include "intrpvar.h"
1905 # ifndef USE_THREADS
1906 # include "thrdvar.h"
1917 init_main_stash(void)
1922 /* Note that strtab is a rather special HV. Assumptions are made
1923 about not iterating on it, and not adding tie magic to it.
1924 It is properly deallocated in perl_destruct() */
1925 PL_strtab = newHV();
1927 MUTEX_INIT(&PL_strtab_mutex);
1929 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1930 hv_ksplit(PL_strtab, 512);
1932 PL_curstash = PL_defstash = newHV();
1933 PL_curstname = newSVpv("main",4);
1934 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1935 SvREFCNT_dec(GvHV(gv));
1936 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1938 HvNAME(PL_defstash) = savepv("main");
1939 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1940 GvMULTI_on(PL_incgv);
1941 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1942 GvMULTI_on(PL_hintgv);
1943 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1944 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1945 GvMULTI_on(PL_errgv);
1946 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1947 GvMULTI_on(PL_replgv);
1948 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1949 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1950 sv_setpvn(ERRSV, "", 0);
1951 PL_curstash = PL_defstash;
1952 PL_compiling.cop_stash = PL_defstash;
1953 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1954 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1955 /* We must init $/ before switches are processed. */
1956 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1960 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1968 PL_origfilename = savepv("-e");
1971 /* if find_script() returns, it returns a malloc()-ed value */
1972 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1974 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1975 char *s = scriptname + 8;
1976 *fdscript = atoi(s);
1980 scriptname = savepv(s + 1);
1981 Safefree(PL_origfilename);
1982 PL_origfilename = scriptname;
1987 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1988 if (strEQ(PL_origfilename,"-"))
1990 if (*fdscript >= 0) {
1991 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1992 #if defined(HAS_FCNTL) && defined(F_SETFD)
1994 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1997 else if (PL_preprocess) {
1998 char *cpp_cfg = CPPSTDIN;
1999 SV *cpp = newSVpv("",0);
2000 SV *cmd = NEWSV(0,0);
2002 if (strEQ(cpp_cfg, "cppstdin"))
2003 sv_catpvf(cpp, "%s/", BIN_EXP);
2004 sv_catpv(cpp, cpp_cfg);
2007 sv_catpv(sv,PRIVLIB_EXP);
2011 sed %s -e \"/^[^#]/b\" \
2012 -e \"/^#[ ]*include[ ]/b\" \
2013 -e \"/^#[ ]*define[ ]/b\" \
2014 -e \"/^#[ ]*if[ ]/b\" \
2015 -e \"/^#[ ]*ifdef[ ]/b\" \
2016 -e \"/^#[ ]*ifndef[ ]/b\" \
2017 -e \"/^#[ ]*else/b\" \
2018 -e \"/^#[ ]*elif[ ]/b\" \
2019 -e \"/^#[ ]*undef[ ]/b\" \
2020 -e \"/^#[ ]*endif/b\" \
2023 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2027 %s %s -e '/^[^#]/b' \
2028 -e '/^#[ ]*include[ ]/b' \
2029 -e '/^#[ ]*define[ ]/b' \
2030 -e '/^#[ ]*if[ ]/b' \
2031 -e '/^#[ ]*ifdef[ ]/b' \
2032 -e '/^#[ ]*ifndef[ ]/b' \
2033 -e '/^#[ ]*else/b' \
2034 -e '/^#[ ]*elif[ ]/b' \
2035 -e '/^#[ ]*undef[ ]/b' \
2036 -e '/^#[ ]*endif/b' \
2041 %s %s -e '/^[^#]/b' \
2042 -e '/^#[ ]*include[ ]/b' \
2043 -e '/^#[ ]*define[ ]/b' \
2044 -e '/^#[ ]*if[ ]/b' \
2045 -e '/^#[ ]*ifdef[ ]/b' \
2046 -e '/^#[ ]*ifndef[ ]/b' \
2047 -e '/^#[ ]*else/b' \
2048 -e '/^#[ ]*elif[ ]/b' \
2049 -e '/^#[ ]*undef[ ]/b' \
2050 -e '/^#[ ]*endif/b' \
2059 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2061 scriptname, cpp, sv, CPPMINUS);
2062 PL_doextract = FALSE;
2063 #ifdef IAMSUID /* actually, this is caught earlier */
2064 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2066 (void)seteuid(PL_uid); /* musn't stay setuid root */
2069 (void)setreuid((Uid_t)-1, PL_uid);
2071 #ifdef HAS_SETRESUID
2072 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2074 PerlProc_setuid(PL_uid);
2078 if (PerlProc_geteuid() != PL_uid)
2079 croak("Can't do seteuid!\n");
2081 #endif /* IAMSUID */
2082 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2086 else if (!*scriptname) {
2087 forbid_setid("program input from stdin");
2088 PL_rsfp = PerlIO_stdin();
2091 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2092 #if defined(HAS_FCNTL) && defined(F_SETFD)
2094 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2099 #ifndef IAMSUID /* in case script is not readable before setuid */
2101 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2102 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2105 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2106 croak("Can't do setuid\n");
2110 croak("Can't open perl script \"%s\": %s\n",
2111 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2116 validate_suid(char *validarg, char *scriptname, int fdscript)
2120 /* do we need to emulate setuid on scripts? */
2122 /* This code is for those BSD systems that have setuid #! scripts disabled
2123 * in the kernel because of a security problem. Merely defining DOSUID
2124 * in perl will not fix that problem, but if you have disabled setuid
2125 * scripts in the kernel, this will attempt to emulate setuid and setgid
2126 * on scripts that have those now-otherwise-useless bits set. The setuid
2127 * root version must be called suidperl or sperlN.NNN. If regular perl
2128 * discovers that it has opened a setuid script, it calls suidperl with
2129 * the same argv that it had. If suidperl finds that the script it has
2130 * just opened is NOT setuid root, it sets the effective uid back to the
2131 * uid. We don't just make perl setuid root because that loses the
2132 * effective uid we had before invoking perl, if it was different from the
2135 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2136 * be defined in suidperl only. suidperl must be setuid root. The
2137 * Configure script will set this up for you if you want it.
2144 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2145 croak("Can't stat script \"%s\"",PL_origfilename);
2146 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2151 #ifndef HAS_SETREUID
2152 /* On this access check to make sure the directories are readable,
2153 * there is actually a small window that the user could use to make
2154 * filename point to an accessible directory. So there is a faint
2155 * chance that someone could execute a setuid script down in a
2156 * non-accessible directory. I don't know what to do about that.
2157 * But I don't think it's too important. The manual lies when
2158 * it says access() is useful in setuid programs.
2160 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2161 croak("Permission denied");
2163 /* If we can swap euid and uid, then we can determine access rights
2164 * with a simple stat of the file, and then compare device and
2165 * inode to make sure we did stat() on the same file we opened.
2166 * Then we just have to make sure he or she can execute it.
2169 struct stat tmpstatbuf;
2173 setreuid(PL_euid,PL_uid) < 0
2176 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2179 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2180 croak("Can't swap uid and euid"); /* really paranoid */
2181 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2182 croak("Permission denied"); /* testing full pathname here */
2183 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2184 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2185 (void)PerlIO_close(PL_rsfp);
2186 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2187 PerlIO_printf(PL_rsfp,
2188 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2189 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2190 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2191 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2192 SvPVX(GvSV(PL_curcop->cop_filegv)),
2193 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2194 (void)PerlProc_pclose(PL_rsfp);
2196 croak("Permission denied\n");
2200 setreuid(PL_uid,PL_euid) < 0
2202 # if defined(HAS_SETRESUID)
2203 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2206 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2207 croak("Can't reswap uid and euid");
2208 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2209 croak("Permission denied\n");
2211 #endif /* HAS_SETREUID */
2212 #endif /* IAMSUID */
2214 if (!S_ISREG(PL_statbuf.st_mode))
2215 croak("Permission denied");
2216 if (PL_statbuf.st_mode & S_IWOTH)
2217 croak("Setuid/gid script is writable by world");
2218 PL_doswitches = FALSE; /* -s is insecure in suid */
2219 PL_curcop->cop_line++;
2220 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2221 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
2222 croak("No #! line");
2223 s = SvPV(PL_linestr,n_a)+2;
2225 while (!isSPACE(*s)) s++;
2226 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
2227 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2228 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2229 croak("Not a perl script");
2230 while (*s == ' ' || *s == '\t') s++;
2232 * #! arg must be what we saw above. They can invoke it by
2233 * mentioning suidperl explicitly, but they may not add any strange
2234 * arguments beyond what #! says if they do invoke suidperl that way.
2236 len = strlen(validarg);
2237 if (strEQ(validarg," PHOOEY ") ||
2238 strnNE(s,validarg,len) || !isSPACE(s[len]))
2239 croak("Args must match #! line");
2242 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2243 PL_euid == PL_statbuf.st_uid)
2245 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2246 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2247 #endif /* IAMSUID */
2249 if (PL_euid) { /* oops, we're not the setuid root perl */
2250 (void)PerlIO_close(PL_rsfp);
2253 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2255 croak("Can't do setuid\n");
2258 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2260 (void)setegid(PL_statbuf.st_gid);
2263 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2265 #ifdef HAS_SETRESGID
2266 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2268 PerlProc_setgid(PL_statbuf.st_gid);
2272 if (PerlProc_getegid() != PL_statbuf.st_gid)
2273 croak("Can't do setegid!\n");
2275 if (PL_statbuf.st_mode & S_ISUID) {
2276 if (PL_statbuf.st_uid != PL_euid)
2278 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2281 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2283 #ifdef HAS_SETRESUID
2284 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2286 PerlProc_setuid(PL_statbuf.st_uid);
2290 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2291 croak("Can't do seteuid!\n");
2293 else if (PL_uid) { /* oops, mustn't run as root */
2295 (void)seteuid((Uid_t)PL_uid);
2298 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2300 #ifdef HAS_SETRESUID
2301 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2303 PerlProc_setuid((Uid_t)PL_uid);
2307 if (PerlProc_geteuid() != PL_uid)
2308 croak("Can't do seteuid!\n");
2311 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2312 croak("Permission denied\n"); /* they can't do this */
2315 else if (PL_preprocess)
2316 croak("-P not allowed for setuid/setgid script\n");
2317 else if (fdscript >= 0)
2318 croak("fd script not allowed in suidperl\n");
2320 croak("Script is not setuid/setgid in suidperl\n");
2322 /* We absolutely must clear out any saved ids here, so we */
2323 /* exec the real perl, substituting fd script for scriptname. */
2324 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2325 PerlIO_rewind(PL_rsfp);
2326 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2327 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2328 if (!PL_origargv[which])
2329 croak("Permission denied");
2330 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2331 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2332 #if defined(HAS_FCNTL) && defined(F_SETFD)
2333 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2335 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2336 croak("Can't do setuid\n");
2337 #endif /* IAMSUID */
2339 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2340 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2342 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2343 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2345 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2348 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2349 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2350 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2351 /* not set-id, must be wrapped */
2357 find_beginning(void)
2359 register char *s, *s2;
2361 /* skip forward in input to the real script? */
2364 while (PL_doextract) {
2365 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2366 croak("No Perl script found in input\n");
2367 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2368 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2369 PL_doextract = FALSE;
2370 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2372 while (*s == ' ' || *s == '\t') s++;
2374 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2375 if (strnEQ(s2-4,"perl",4))
2377 while (s = moreswitches(s)) ;
2379 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2380 croak("Can't chdir to %s",PL_cddir);
2389 PL_uid = (int)PerlProc_getuid();
2390 PL_euid = (int)PerlProc_geteuid();
2391 PL_gid = (int)PerlProc_getgid();
2392 PL_egid = (int)PerlProc_getegid();
2394 PL_uid |= PL_gid << 16;
2395 PL_euid |= PL_egid << 16;
2397 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2401 forbid_setid(char *s)
2403 if (PL_euid != PL_uid)
2404 croak("No %s allowed while running setuid", s);
2405 if (PL_egid != PL_gid)
2406 croak("No %s allowed while running setgid", s);
2413 PL_curstash = PL_debstash;
2414 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2415 AvREAL_off(PL_dbargs);
2416 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2417 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2418 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2419 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2420 sv_setiv(PL_DBsingle, 0);
2421 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2422 sv_setiv(PL_DBtrace, 0);
2423 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2424 sv_setiv(PL_DBsignal, 0);
2425 PL_curstash = PL_defstash;
2428 #ifndef STRESS_REALLOC
2429 #define REASONABLE(size) (size)
2431 #define REASONABLE(size) (1) /* unreasonable */
2435 init_stacks(ARGSproto)
2437 /* start with 128-item stack and 8K cxstack */
2438 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2439 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2440 PL_curstackinfo->si_type = PERLSI_MAIN;
2441 PL_curstack = PL_curstackinfo->si_stack;
2442 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2444 PL_stack_base = AvARRAY(PL_curstack);
2445 PL_stack_sp = PL_stack_base;
2446 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2448 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2451 PL_tmps_max = REASONABLE(128);
2453 New(54,PL_markstack,REASONABLE(32),I32);
2454 PL_markstack_ptr = PL_markstack;
2455 PL_markstack_max = PL_markstack + REASONABLE(32);
2459 New(54,PL_scopestack,REASONABLE(32),I32);
2460 PL_scopestack_ix = 0;
2461 PL_scopestack_max = REASONABLE(32);
2463 New(54,PL_savestack,REASONABLE(128),ANY);
2464 PL_savestack_ix = 0;
2465 PL_savestack_max = REASONABLE(128);
2467 New(54,PL_retstack,REASONABLE(16),OP*);
2469 PL_retstack_max = REASONABLE(16);
2478 while (PL_curstackinfo->si_next)
2479 PL_curstackinfo = PL_curstackinfo->si_next;
2480 while (PL_curstackinfo) {
2481 PERL_SI *p = PL_curstackinfo->si_prev;
2482 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2483 Safefree(PL_curstackinfo->si_cxstack);
2484 Safefree(PL_curstackinfo);
2485 PL_curstackinfo = p;
2487 Safefree(PL_tmps_stack);
2488 Safefree(PL_markstack);
2489 Safefree(PL_scopestack);
2490 Safefree(PL_savestack);
2491 Safefree(PL_retstack);
2493 Safefree(PL_debname);
2494 Safefree(PL_debdelim);
2499 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2510 lex_start(PL_linestr);
2512 PL_subname = newSVpv("main",4);
2516 init_predump_symbols(void)
2522 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2523 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2524 GvMULTI_on(PL_stdingv);
2525 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2526 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2528 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2530 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2532 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2534 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2536 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2538 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2539 GvMULTI_on(othergv);
2540 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2541 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2543 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2545 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2548 PL_osname = savepv(OSNAME);
2552 init_postdump_symbols(register int argc, register char **argv, register char **env)
2559 argc--,argv++; /* skip name of script */
2560 if (PL_doswitches) {
2561 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2564 if (argv[0][1] == '-') {
2568 if (s = strchr(argv[0], '=')) {
2570 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2573 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2576 PL_toptarget = NEWSV(0,0);
2577 sv_upgrade(PL_toptarget, SVt_PVFM);
2578 sv_setpvn(PL_toptarget, "", 0);
2579 PL_bodytarget = NEWSV(0,0);
2580 sv_upgrade(PL_bodytarget, SVt_PVFM);
2581 sv_setpvn(PL_bodytarget, "", 0);
2582 PL_formtarget = PL_bodytarget;
2585 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2586 sv_setpv(GvSV(tmpgv),PL_origfilename);
2587 magicname("0", "0", 1);
2589 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2590 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2591 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2592 GvMULTI_on(PL_argvgv);
2593 (void)gv_AVadd(PL_argvgv);
2594 av_clear(GvAVn(PL_argvgv));
2595 for (; argc > 0; argc--,argv++) {
2596 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2599 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2601 GvMULTI_on(PL_envgv);
2602 hv = GvHVn(PL_envgv);
2603 hv_magic(hv, PL_envgv, 'E');
2604 #ifndef VMS /* VMS doesn't have environ array */
2605 /* Note that if the supplied env parameter is actually a copy
2606 of the global environ then it may now point to free'd memory
2607 if the environment has been modified since. To avoid this
2608 problem we treat env==NULL as meaning 'use the default'
2613 environ[0] = Nullch;
2614 for (; *env; env++) {
2615 if (!(s = strchr(*env,'=')))
2621 sv = newSVpv(s--,0);
2622 (void)hv_store(hv, *env, s - *env, sv, 0);
2624 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2625 /* Sins of the RTL. See note in my_setenv(). */
2626 (void)PerlEnv_putenv(savepv(*env));
2630 #ifdef DYNAMIC_ENV_FETCH
2631 HvNAME(hv) = savepv(ENV_HV_NAME);
2635 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2636 sv_setiv(GvSV(tmpgv), (IV)getpid());
2645 s = PerlEnv_getenv("PERL5LIB");
2649 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2651 /* Treat PERL5?LIB as a possible search list logical name -- the
2652 * "natural" VMS idiom for a Unix path string. We allow each
2653 * element to be a set of |-separated directories for compatibility.
2657 if (my_trnlnm("PERL5LIB",buf,0))
2658 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2660 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2664 /* Use the ~-expanded versions of APPLLIB (undocumented),
2665 ARCHLIB PRIVLIB SITEARCH and SITELIB
2668 incpush(APPLLIB_EXP, TRUE);
2672 incpush(ARCHLIB_EXP, FALSE);
2675 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2678 incpush(PRIVLIB_EXP, TRUE);
2680 incpush(PRIVLIB_EXP, FALSE);
2684 incpush(SITEARCH_EXP, FALSE);
2688 incpush(SITELIB_EXP, TRUE);
2690 incpush(SITELIB_EXP, FALSE);
2694 incpush(".", FALSE);
2698 # define PERLLIB_SEP ';'
2701 # define PERLLIB_SEP '|'
2703 # define PERLLIB_SEP ':'
2706 #ifndef PERLLIB_MANGLE
2707 # define PERLLIB_MANGLE(s,n) (s)
2711 incpush(char *p, int addsubdirs)
2713 SV *subdir = Nullsv;
2719 subdir = sv_newmortal();
2720 if (!PL_archpat_auto) {
2721 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2722 + sizeof("//auto"));
2723 New(55, PL_archpat_auto, len, char);
2724 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2726 for (len = sizeof(ARCHNAME) + 2;
2727 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2728 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2733 /* Break at all separators */
2735 SV *libdir = NEWSV(55,0);
2738 /* skip any consecutive separators */
2739 while ( *p == PERLLIB_SEP ) {
2740 /* Uncomment the next line for PATH semantics */
2741 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2745 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2746 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2751 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2752 p = Nullch; /* break out */
2756 * BEFORE pushing libdir onto @INC we may first push version- and
2757 * archname-specific sub-directories.
2760 struct stat tmpstatbuf;
2765 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
2767 while (unix[len-1] == '/') len--; /* Cosmetic */
2768 sv_usepvn(libdir,unix,len);
2771 PerlIO_printf(PerlIO_stderr(),
2772 "Failed to unixify @INC element \"%s\"\n",
2775 /* .../archname/version if -d .../archname/version/auto */
2776 sv_setsv(subdir, libdir);
2777 sv_catpv(subdir, PL_archpat_auto);
2778 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2779 S_ISDIR(tmpstatbuf.st_mode))
2780 av_push(GvAVn(PL_incgv),
2781 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2783 /* .../archname if -d .../archname/auto */
2784 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2785 strlen(PL_patchlevel) + 1, "", 0);
2786 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2787 S_ISDIR(tmpstatbuf.st_mode))
2788 av_push(GvAVn(PL_incgv),
2789 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2792 /* finally push this lib directory on the end of @INC */
2793 av_push(GvAVn(PL_incgv), libdir);
2798 STATIC struct perl_thread *
2801 struct perl_thread *thr;
2804 Newz(53, thr, 1, struct perl_thread);
2805 PL_curcop = &PL_compiling;
2806 thr->cvcache = newHV();
2807 thr->threadsv = newAV();
2808 /* thr->threadsvp is set when find_threadsv is called */
2809 thr->specific = newAV();
2810 thr->errhv = newHV();
2811 thr->flags = THRf_R_JOINABLE;
2812 MUTEX_INIT(&thr->mutex);
2813 /* Handcraft thrsv similarly to mess_sv */
2814 New(53, PL_thrsv, 1, SV);
2815 Newz(53, xpv, 1, XPV);
2816 SvFLAGS(PL_thrsv) = SVt_PV;
2817 SvANY(PL_thrsv) = (void*)xpv;
2818 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2819 SvPVX(PL_thrsv) = (char*)thr;
2820 SvCUR_set(PL_thrsv, sizeof(thr));
2821 SvLEN_set(PL_thrsv, sizeof(thr));
2822 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2823 thr->oursv = PL_thrsv;
2824 PL_chopset = " \n-";
2827 MUTEX_LOCK(&PL_threads_mutex);
2832 MUTEX_UNLOCK(&PL_threads_mutex);
2834 #ifdef HAVE_THREAD_INTERN
2835 init_thread_intern(thr);
2838 #ifdef SET_THREAD_SELF
2839 SET_THREAD_SELF(thr);
2841 thr->self = pthread_self();
2842 #endif /* SET_THREAD_SELF */
2846 * These must come after the SET_THR because sv_setpvn does
2847 * SvTAINT and the taint fields require dTHR.
2849 PL_toptarget = NEWSV(0,0);
2850 sv_upgrade(PL_toptarget, SVt_PVFM);
2851 sv_setpvn(PL_toptarget, "", 0);
2852 PL_bodytarget = NEWSV(0,0);
2853 sv_upgrade(PL_bodytarget, SVt_PVFM);
2854 sv_setpvn(PL_bodytarget, "", 0);
2855 PL_formtarget = PL_bodytarget;
2856 thr->errsv = newSVpv("", 0);
2857 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2860 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2861 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2863 PL_reginterp_cnt = 0;
2867 #endif /* USE_THREADS */
2870 call_list(I32 oldscope, AV *paramList)
2873 line_t oldline = PL_curcop->cop_line;
2878 while (AvFILL(paramList) >= 0) {
2879 CV *cv = (CV*)av_shift(paramList);
2887 PUSHMARK(PL_stack_sp);
2888 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2889 (void)SvPV(atsv, len);
2892 PL_curcop = &PL_compiling;
2893 PL_curcop->cop_line = oldline;
2894 if (paramList == PL_beginav)
2895 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2897 sv_catpv(atsv, "END failed--cleanup aborted");
2898 while (PL_scopestack_ix > oldscope)
2900 croak("%s", SvPVX(atsv));
2908 /* my_exit() was called */
2909 while (PL_scopestack_ix > oldscope)
2912 PL_curstash = PL_defstash;
2914 call_list(oldscope, PL_endav);
2916 PL_curcop = &PL_compiling;
2917 PL_curcop->cop_line = oldline;
2918 if (PL_statusvalue) {
2919 if (paramList == PL_beginav)
2920 croak("BEGIN failed--compilation aborted");
2922 croak("END failed--cleanup aborted");
2927 if (!PL_restartop) {
2928 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2933 PL_curcop = &PL_compiling;
2934 PL_curcop->cop_line = oldline;
2946 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2947 thr, (unsigned long) status));
2956 STATUS_NATIVE_SET(status);
2963 my_failure_exit(void)
2966 if (vaxc$errno & 1) {
2967 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2968 STATUS_NATIVE_SET(44);
2971 if (!vaxc$errno && errno) /* unlikely */
2972 STATUS_NATIVE_SET(44);
2974 STATUS_NATIVE_SET(vaxc$errno);
2979 STATUS_POSIX_SET(errno);
2981 exitstatus = STATUS_POSIX >> 8;
2982 if (exitstatus & 255)
2983 STATUS_POSIX_SET(exitstatus);
2985 STATUS_POSIX_SET(255);
2995 register PERL_CONTEXT *cx;
3000 SvREFCNT_dec(PL_e_script);
3001 PL_e_script = Nullsv;
3004 POPSTACK_TO(PL_mainstack);
3005 if (cxstack_ix >= 0) {
3008 POPBLOCK(cx,PL_curpm);
3017 #endif /* PERL_OBJECT */
3023 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3025 read_e_script(int idx, SV *buf_sv, int maxlen)
3029 p = SvPVX(PL_e_script);
3030 nl = strchr(p, '\n');
3031 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3033 filter_del(read_e_script);
3036 sv_catpvn(buf_sv, p, nl-p);
3037 sv_chop(PL_e_script, nl);