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");
1761 #ifdef BINARY_BUILD_NOTICE
1762 BINARY_BUILD_NOTICE;
1765 Perl may be copied only under the terms of either the Artistic License or the\n\
1766 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1767 Complete documentation for Perl, including FAQ lists, should be found on\n\
1768 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1769 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1772 if (! (PL_dowarn & G_WARN_ALL_MASK))
1773 PL_dowarn |= G_WARN_ON;
1777 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1778 PL_compiling.cop_warnings = WARN_ALL ;
1782 PL_dowarn = G_WARN_ALL_OFF;
1783 PL_compiling.cop_warnings = WARN_NONE ;
1788 if (s[1] == '-') /* Additional switches on #! line. */
1793 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1799 #ifdef ALTERNATE_SHEBANG
1800 case 'S': /* OS/2 needs -S on "extproc" line. */
1808 croak("Can't emulate -%.1s on #! line",s);
1813 /* compliments of Tom Christiansen */
1815 /* unexec() can be found in the Gnu emacs distribution */
1816 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1827 prog = newSVpv(BIN_EXP, 0);
1828 sv_catpv(prog, "/perl");
1829 file = newSVpv(PL_origfilename, 0);
1830 sv_catpv(file, ".perldump");
1832 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1833 /* unexec prints msg to stderr in case of failure */
1834 PerlProc_exit(status);
1837 # include <lib$routines.h>
1838 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1840 ABORT(); /* for use with undump */
1845 /* initialize curinterp */
1850 #ifdef PERL_OBJECT /* XXX kludge */
1853 PL_chopset = " \n-"; \
1854 PL_copline = NOLINE; \
1855 PL_curcop = &PL_compiling;\
1856 PL_curcopdb = NULL; \
1859 PL_dumpindent = 4; \
1860 PL_laststatval = -1; \
1861 PL_laststype = OP_STAT; \
1862 PL_maxscream = -1; \
1863 PL_maxsysfd = MAXSYSFD; \
1864 PL_statname = Nullsv; \
1865 PL_tmps_floor = -1; \
1867 PL_op_mask = NULL; \
1869 PL_laststatval = -1; \
1870 PL_laststype = OP_STAT; \
1871 PL_mess_sv = Nullsv; \
1872 PL_splitstr = " "; \
1873 PL_generation = 100; \
1874 PL_exitlist = NULL; \
1875 PL_exitlistlen = 0; \
1877 PL_in_clean_objs = FALSE; \
1878 PL_in_clean_all = FALSE; \
1879 PL_profiledata = NULL; \
1881 PL_rsfp_filters = Nullav; \
1886 # ifdef MULTIPLICITY
1887 # define PERLVAR(var,type)
1888 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1889 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1890 # include "intrpvar.h"
1891 # ifndef USE_THREADS
1892 # include "thrdvar.h"
1898 # define PERLVAR(var,type)
1899 # define PERLVARI(var,type,init) PL_##var = init;
1900 # define PERLVARIC(var,type,init) PL_##var = init;
1901 # include "intrpvar.h"
1902 # ifndef USE_THREADS
1903 # include "thrdvar.h"
1914 init_main_stash(void)
1919 /* Note that strtab is a rather special HV. Assumptions are made
1920 about not iterating on it, and not adding tie magic to it.
1921 It is properly deallocated in perl_destruct() */
1922 PL_strtab = newHV();
1924 MUTEX_INIT(&PL_strtab_mutex);
1926 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1927 hv_ksplit(PL_strtab, 512);
1929 PL_curstash = PL_defstash = newHV();
1930 PL_curstname = newSVpv("main",4);
1931 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1932 SvREFCNT_dec(GvHV(gv));
1933 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1935 HvNAME(PL_defstash) = savepv("main");
1936 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1937 GvMULTI_on(PL_incgv);
1938 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1939 GvMULTI_on(PL_hintgv);
1940 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1941 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1942 GvMULTI_on(PL_errgv);
1943 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1944 GvMULTI_on(PL_replgv);
1945 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1946 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1947 sv_setpvn(ERRSV, "", 0);
1948 PL_curstash = PL_defstash;
1949 PL_compiling.cop_stash = PL_defstash;
1950 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1951 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1952 /* We must init $/ before switches are processed. */
1953 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1957 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1965 PL_origfilename = savepv("-e");
1968 /* if find_script() returns, it returns a malloc()-ed value */
1969 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1971 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1972 char *s = scriptname + 8;
1973 *fdscript = atoi(s);
1977 scriptname = savepv(s + 1);
1978 Safefree(PL_origfilename);
1979 PL_origfilename = scriptname;
1984 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1985 if (strEQ(PL_origfilename,"-"))
1987 if (*fdscript >= 0) {
1988 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1989 #if defined(HAS_FCNTL) && defined(F_SETFD)
1991 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1994 else if (PL_preprocess) {
1995 char *cpp_cfg = CPPSTDIN;
1996 SV *cpp = newSVpv("",0);
1997 SV *cmd = NEWSV(0,0);
1999 if (strEQ(cpp_cfg, "cppstdin"))
2000 sv_catpvf(cpp, "%s/", BIN_EXP);
2001 sv_catpv(cpp, cpp_cfg);
2004 sv_catpv(sv,PRIVLIB_EXP);
2008 sed %s -e \"/^[^#]/b\" \
2009 -e \"/^#[ ]*include[ ]/b\" \
2010 -e \"/^#[ ]*define[ ]/b\" \
2011 -e \"/^#[ ]*if[ ]/b\" \
2012 -e \"/^#[ ]*ifdef[ ]/b\" \
2013 -e \"/^#[ ]*ifndef[ ]/b\" \
2014 -e \"/^#[ ]*else/b\" \
2015 -e \"/^#[ ]*elif[ ]/b\" \
2016 -e \"/^#[ ]*undef[ ]/b\" \
2017 -e \"/^#[ ]*endif/b\" \
2020 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2024 %s %s -e '/^[^#]/b' \
2025 -e '/^#[ ]*include[ ]/b' \
2026 -e '/^#[ ]*define[ ]/b' \
2027 -e '/^#[ ]*if[ ]/b' \
2028 -e '/^#[ ]*ifdef[ ]/b' \
2029 -e '/^#[ ]*ifndef[ ]/b' \
2030 -e '/^#[ ]*else/b' \
2031 -e '/^#[ ]*elif[ ]/b' \
2032 -e '/^#[ ]*undef[ ]/b' \
2033 -e '/^#[ ]*endif/b' \
2038 %s %s -e '/^[^#]/b' \
2039 -e '/^#[ ]*include[ ]/b' \
2040 -e '/^#[ ]*define[ ]/b' \
2041 -e '/^#[ ]*if[ ]/b' \
2042 -e '/^#[ ]*ifdef[ ]/b' \
2043 -e '/^#[ ]*ifndef[ ]/b' \
2044 -e '/^#[ ]*else/b' \
2045 -e '/^#[ ]*elif[ ]/b' \
2046 -e '/^#[ ]*undef[ ]/b' \
2047 -e '/^#[ ]*endif/b' \
2056 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2058 scriptname, cpp, sv, CPPMINUS);
2059 PL_doextract = FALSE;
2060 #ifdef IAMSUID /* actually, this is caught earlier */
2061 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2063 (void)seteuid(PL_uid); /* musn't stay setuid root */
2066 (void)setreuid((Uid_t)-1, PL_uid);
2068 #ifdef HAS_SETRESUID
2069 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2071 PerlProc_setuid(PL_uid);
2075 if (PerlProc_geteuid() != PL_uid)
2076 croak("Can't do seteuid!\n");
2078 #endif /* IAMSUID */
2079 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2083 else if (!*scriptname) {
2084 forbid_setid("program input from stdin");
2085 PL_rsfp = PerlIO_stdin();
2088 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2089 #if defined(HAS_FCNTL) && defined(F_SETFD)
2091 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2096 #ifndef IAMSUID /* in case script is not readable before setuid */
2098 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2099 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2102 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2103 croak("Can't do setuid\n");
2107 croak("Can't open perl script \"%s\": %s\n",
2108 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2113 validate_suid(char *validarg, char *scriptname, int fdscript)
2117 /* do we need to emulate setuid on scripts? */
2119 /* This code is for those BSD systems that have setuid #! scripts disabled
2120 * in the kernel because of a security problem. Merely defining DOSUID
2121 * in perl will not fix that problem, but if you have disabled setuid
2122 * scripts in the kernel, this will attempt to emulate setuid and setgid
2123 * on scripts that have those now-otherwise-useless bits set. The setuid
2124 * root version must be called suidperl or sperlN.NNN. If regular perl
2125 * discovers that it has opened a setuid script, it calls suidperl with
2126 * the same argv that it had. If suidperl finds that the script it has
2127 * just opened is NOT setuid root, it sets the effective uid back to the
2128 * uid. We don't just make perl setuid root because that loses the
2129 * effective uid we had before invoking perl, if it was different from the
2132 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2133 * be defined in suidperl only. suidperl must be setuid root. The
2134 * Configure script will set this up for you if you want it.
2141 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2142 croak("Can't stat script \"%s\"",PL_origfilename);
2143 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2148 #ifndef HAS_SETREUID
2149 /* On this access check to make sure the directories are readable,
2150 * there is actually a small window that the user could use to make
2151 * filename point to an accessible directory. So there is a faint
2152 * chance that someone could execute a setuid script down in a
2153 * non-accessible directory. I don't know what to do about that.
2154 * But I don't think it's too important. The manual lies when
2155 * it says access() is useful in setuid programs.
2157 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2158 croak("Permission denied");
2160 /* If we can swap euid and uid, then we can determine access rights
2161 * with a simple stat of the file, and then compare device and
2162 * inode to make sure we did stat() on the same file we opened.
2163 * Then we just have to make sure he or she can execute it.
2166 struct stat tmpstatbuf;
2170 setreuid(PL_euid,PL_uid) < 0
2173 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2176 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2177 croak("Can't swap uid and euid"); /* really paranoid */
2178 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2179 croak("Permission denied"); /* testing full pathname here */
2180 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2181 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2182 (void)PerlIO_close(PL_rsfp);
2183 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2184 PerlIO_printf(PL_rsfp,
2185 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2186 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2187 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2188 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2189 SvPVX(GvSV(PL_curcop->cop_filegv)),
2190 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2191 (void)PerlProc_pclose(PL_rsfp);
2193 croak("Permission denied\n");
2197 setreuid(PL_uid,PL_euid) < 0
2199 # if defined(HAS_SETRESUID)
2200 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2203 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2204 croak("Can't reswap uid and euid");
2205 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2206 croak("Permission denied\n");
2208 #endif /* HAS_SETREUID */
2209 #endif /* IAMSUID */
2211 if (!S_ISREG(PL_statbuf.st_mode))
2212 croak("Permission denied");
2213 if (PL_statbuf.st_mode & S_IWOTH)
2214 croak("Setuid/gid script is writable by world");
2215 PL_doswitches = FALSE; /* -s is insecure in suid */
2216 PL_curcop->cop_line++;
2217 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2218 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
2219 croak("No #! line");
2220 s = SvPV(PL_linestr,n_a)+2;
2222 while (!isSPACE(*s)) s++;
2223 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
2224 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2225 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2226 croak("Not a perl script");
2227 while (*s == ' ' || *s == '\t') s++;
2229 * #! arg must be what we saw above. They can invoke it by
2230 * mentioning suidperl explicitly, but they may not add any strange
2231 * arguments beyond what #! says if they do invoke suidperl that way.
2233 len = strlen(validarg);
2234 if (strEQ(validarg," PHOOEY ") ||
2235 strnNE(s,validarg,len) || !isSPACE(s[len]))
2236 croak("Args must match #! line");
2239 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2240 PL_euid == PL_statbuf.st_uid)
2242 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2243 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2244 #endif /* IAMSUID */
2246 if (PL_euid) { /* oops, we're not the setuid root perl */
2247 (void)PerlIO_close(PL_rsfp);
2250 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2252 croak("Can't do setuid\n");
2255 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2257 (void)setegid(PL_statbuf.st_gid);
2260 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2262 #ifdef HAS_SETRESGID
2263 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2265 PerlProc_setgid(PL_statbuf.st_gid);
2269 if (PerlProc_getegid() != PL_statbuf.st_gid)
2270 croak("Can't do setegid!\n");
2272 if (PL_statbuf.st_mode & S_ISUID) {
2273 if (PL_statbuf.st_uid != PL_euid)
2275 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2278 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2280 #ifdef HAS_SETRESUID
2281 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2283 PerlProc_setuid(PL_statbuf.st_uid);
2287 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2288 croak("Can't do seteuid!\n");
2290 else if (PL_uid) { /* oops, mustn't run as root */
2292 (void)seteuid((Uid_t)PL_uid);
2295 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2297 #ifdef HAS_SETRESUID
2298 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2300 PerlProc_setuid((Uid_t)PL_uid);
2304 if (PerlProc_geteuid() != PL_uid)
2305 croak("Can't do seteuid!\n");
2308 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2309 croak("Permission denied\n"); /* they can't do this */
2312 else if (PL_preprocess)
2313 croak("-P not allowed for setuid/setgid script\n");
2314 else if (fdscript >= 0)
2315 croak("fd script not allowed in suidperl\n");
2317 croak("Script is not setuid/setgid in suidperl\n");
2319 /* We absolutely must clear out any saved ids here, so we */
2320 /* exec the real perl, substituting fd script for scriptname. */
2321 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2322 PerlIO_rewind(PL_rsfp);
2323 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2324 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2325 if (!PL_origargv[which])
2326 croak("Permission denied");
2327 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2328 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2329 #if defined(HAS_FCNTL) && defined(F_SETFD)
2330 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2332 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2333 croak("Can't do setuid\n");
2334 #endif /* IAMSUID */
2336 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2337 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2339 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2340 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2342 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2345 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2346 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2347 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2348 /* not set-id, must be wrapped */
2354 find_beginning(void)
2356 register char *s, *s2;
2358 /* skip forward in input to the real script? */
2361 while (PL_doextract) {
2362 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2363 croak("No Perl script found in input\n");
2364 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2365 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2366 PL_doextract = FALSE;
2367 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2369 while (*s == ' ' || *s == '\t') s++;
2371 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2372 if (strnEQ(s2-4,"perl",4))
2374 while (s = moreswitches(s)) ;
2376 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2377 croak("Can't chdir to %s",PL_cddir);
2386 PL_uid = (int)PerlProc_getuid();
2387 PL_euid = (int)PerlProc_geteuid();
2388 PL_gid = (int)PerlProc_getgid();
2389 PL_egid = (int)PerlProc_getegid();
2391 PL_uid |= PL_gid << 16;
2392 PL_euid |= PL_egid << 16;
2394 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2398 forbid_setid(char *s)
2400 if (PL_euid != PL_uid)
2401 croak("No %s allowed while running setuid", s);
2402 if (PL_egid != PL_gid)
2403 croak("No %s allowed while running setgid", s);
2410 PL_curstash = PL_debstash;
2411 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2412 AvREAL_off(PL_dbargs);
2413 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2414 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2415 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2416 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2417 sv_setiv(PL_DBsingle, 0);
2418 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2419 sv_setiv(PL_DBtrace, 0);
2420 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2421 sv_setiv(PL_DBsignal, 0);
2422 PL_curstash = PL_defstash;
2425 #ifndef STRESS_REALLOC
2426 #define REASONABLE(size) (size)
2428 #define REASONABLE(size) (1) /* unreasonable */
2432 init_stacks(ARGSproto)
2434 /* start with 128-item stack and 8K cxstack */
2435 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2436 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2437 PL_curstackinfo->si_type = PERLSI_MAIN;
2438 PL_curstack = PL_curstackinfo->si_stack;
2439 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2441 PL_stack_base = AvARRAY(PL_curstack);
2442 PL_stack_sp = PL_stack_base;
2443 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2445 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2448 PL_tmps_max = REASONABLE(128);
2450 New(54,PL_markstack,REASONABLE(32),I32);
2451 PL_markstack_ptr = PL_markstack;
2452 PL_markstack_max = PL_markstack + REASONABLE(32);
2456 New(54,PL_scopestack,REASONABLE(32),I32);
2457 PL_scopestack_ix = 0;
2458 PL_scopestack_max = REASONABLE(32);
2460 New(54,PL_savestack,REASONABLE(128),ANY);
2461 PL_savestack_ix = 0;
2462 PL_savestack_max = REASONABLE(128);
2464 New(54,PL_retstack,REASONABLE(16),OP*);
2466 PL_retstack_max = REASONABLE(16);
2475 while (PL_curstackinfo->si_next)
2476 PL_curstackinfo = PL_curstackinfo->si_next;
2477 while (PL_curstackinfo) {
2478 PERL_SI *p = PL_curstackinfo->si_prev;
2479 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2480 Safefree(PL_curstackinfo->si_cxstack);
2481 Safefree(PL_curstackinfo);
2482 PL_curstackinfo = p;
2484 Safefree(PL_tmps_stack);
2485 Safefree(PL_markstack);
2486 Safefree(PL_scopestack);
2487 Safefree(PL_savestack);
2488 Safefree(PL_retstack);
2490 Safefree(PL_debname);
2491 Safefree(PL_debdelim);
2496 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2507 lex_start(PL_linestr);
2509 PL_subname = newSVpv("main",4);
2513 init_predump_symbols(void)
2519 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2520 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2521 GvMULTI_on(PL_stdingv);
2522 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2523 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2525 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2527 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2529 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2531 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2533 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2535 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2536 GvMULTI_on(othergv);
2537 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2538 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2540 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2542 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2545 PL_osname = savepv(OSNAME);
2549 init_postdump_symbols(register int argc, register char **argv, register char **env)
2556 argc--,argv++; /* skip name of script */
2557 if (PL_doswitches) {
2558 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2561 if (argv[0][1] == '-') {
2565 if (s = strchr(argv[0], '=')) {
2567 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2570 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2573 PL_toptarget = NEWSV(0,0);
2574 sv_upgrade(PL_toptarget, SVt_PVFM);
2575 sv_setpvn(PL_toptarget, "", 0);
2576 PL_bodytarget = NEWSV(0,0);
2577 sv_upgrade(PL_bodytarget, SVt_PVFM);
2578 sv_setpvn(PL_bodytarget, "", 0);
2579 PL_formtarget = PL_bodytarget;
2582 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2583 sv_setpv(GvSV(tmpgv),PL_origfilename);
2584 magicname("0", "0", 1);
2586 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2587 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2588 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2589 GvMULTI_on(PL_argvgv);
2590 (void)gv_AVadd(PL_argvgv);
2591 av_clear(GvAVn(PL_argvgv));
2592 for (; argc > 0; argc--,argv++) {
2593 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2596 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2598 GvMULTI_on(PL_envgv);
2599 hv = GvHVn(PL_envgv);
2600 hv_magic(hv, PL_envgv, 'E');
2601 #ifndef VMS /* VMS doesn't have environ array */
2602 /* Note that if the supplied env parameter is actually a copy
2603 of the global environ then it may now point to free'd memory
2604 if the environment has been modified since. To avoid this
2605 problem we treat env==NULL as meaning 'use the default'
2610 environ[0] = Nullch;
2611 for (; *env; env++) {
2612 if (!(s = strchr(*env,'=')))
2618 sv = newSVpv(s--,0);
2619 (void)hv_store(hv, *env, s - *env, sv, 0);
2621 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2622 /* Sins of the RTL. See note in my_setenv(). */
2623 (void)PerlEnv_putenv(savepv(*env));
2627 #ifdef DYNAMIC_ENV_FETCH
2628 HvNAME(hv) = savepv(ENV_HV_NAME);
2632 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2633 sv_setiv(GvSV(tmpgv), (IV)getpid());
2642 s = PerlEnv_getenv("PERL5LIB");
2646 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2648 /* Treat PERL5?LIB as a possible search list logical name -- the
2649 * "natural" VMS idiom for a Unix path string. We allow each
2650 * element to be a set of |-separated directories for compatibility.
2654 if (my_trnlnm("PERL5LIB",buf,0))
2655 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2657 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2661 /* Use the ~-expanded versions of APPLLIB (undocumented),
2662 ARCHLIB PRIVLIB SITEARCH and SITELIB
2665 incpush(APPLLIB_EXP, TRUE);
2669 incpush(ARCHLIB_EXP, FALSE);
2672 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2675 incpush(PRIVLIB_EXP, TRUE);
2677 incpush(PRIVLIB_EXP, FALSE);
2681 incpush(SITEARCH_EXP, FALSE);
2685 incpush(SITELIB_EXP, TRUE);
2687 incpush(SITELIB_EXP, FALSE);
2691 incpush(".", FALSE);
2695 # define PERLLIB_SEP ';'
2698 # define PERLLIB_SEP '|'
2700 # define PERLLIB_SEP ':'
2703 #ifndef PERLLIB_MANGLE
2704 # define PERLLIB_MANGLE(s,n) (s)
2708 incpush(char *p, int addsubdirs)
2710 SV *subdir = Nullsv;
2716 subdir = sv_newmortal();
2717 if (!PL_archpat_auto) {
2718 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2719 + sizeof("//auto"));
2720 New(55, PL_archpat_auto, len, char);
2721 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2723 for (len = sizeof(ARCHNAME) + 2;
2724 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2725 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2730 /* Break at all separators */
2732 SV *libdir = NEWSV(55,0);
2735 /* skip any consecutive separators */
2736 while ( *p == PERLLIB_SEP ) {
2737 /* Uncomment the next line for PATH semantics */
2738 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2742 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2743 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2748 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2749 p = Nullch; /* break out */
2753 * BEFORE pushing libdir onto @INC we may first push version- and
2754 * archname-specific sub-directories.
2757 struct stat tmpstatbuf;
2762 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
2764 while (unix[len-1] == '/') len--; /* Cosmetic */
2765 sv_usepvn(libdir,unix,len);
2768 PerlIO_printf(PerlIO_stderr(),
2769 "Failed to unixify @INC element \"%s\"\n",
2772 /* .../archname/version if -d .../archname/version/auto */
2773 sv_setsv(subdir, libdir);
2774 sv_catpv(subdir, PL_archpat_auto);
2775 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2776 S_ISDIR(tmpstatbuf.st_mode))
2777 av_push(GvAVn(PL_incgv),
2778 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2780 /* .../archname if -d .../archname/auto */
2781 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2782 strlen(PL_patchlevel) + 1, "", 0);
2783 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2784 S_ISDIR(tmpstatbuf.st_mode))
2785 av_push(GvAVn(PL_incgv),
2786 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2789 /* finally push this lib directory on the end of @INC */
2790 av_push(GvAVn(PL_incgv), libdir);
2795 STATIC struct perl_thread *
2798 struct perl_thread *thr;
2801 Newz(53, thr, 1, struct perl_thread);
2802 PL_curcop = &PL_compiling;
2803 thr->cvcache = newHV();
2804 thr->threadsv = newAV();
2805 /* thr->threadsvp is set when find_threadsv is called */
2806 thr->specific = newAV();
2807 thr->errhv = newHV();
2808 thr->flags = THRf_R_JOINABLE;
2809 MUTEX_INIT(&thr->mutex);
2810 /* Handcraft thrsv similarly to mess_sv */
2811 New(53, PL_thrsv, 1, SV);
2812 Newz(53, xpv, 1, XPV);
2813 SvFLAGS(PL_thrsv) = SVt_PV;
2814 SvANY(PL_thrsv) = (void*)xpv;
2815 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2816 SvPVX(PL_thrsv) = (char*)thr;
2817 SvCUR_set(PL_thrsv, sizeof(thr));
2818 SvLEN_set(PL_thrsv, sizeof(thr));
2819 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2820 thr->oursv = PL_thrsv;
2821 PL_chopset = " \n-";
2824 MUTEX_LOCK(&PL_threads_mutex);
2829 MUTEX_UNLOCK(&PL_threads_mutex);
2831 #ifdef HAVE_THREAD_INTERN
2832 init_thread_intern(thr);
2835 #ifdef SET_THREAD_SELF
2836 SET_THREAD_SELF(thr);
2838 thr->self = pthread_self();
2839 #endif /* SET_THREAD_SELF */
2843 * These must come after the SET_THR because sv_setpvn does
2844 * SvTAINT and the taint fields require dTHR.
2846 PL_toptarget = NEWSV(0,0);
2847 sv_upgrade(PL_toptarget, SVt_PVFM);
2848 sv_setpvn(PL_toptarget, "", 0);
2849 PL_bodytarget = NEWSV(0,0);
2850 sv_upgrade(PL_bodytarget, SVt_PVFM);
2851 sv_setpvn(PL_bodytarget, "", 0);
2852 PL_formtarget = PL_bodytarget;
2853 thr->errsv = newSVpv("", 0);
2854 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2857 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2858 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2860 PL_reginterp_cnt = 0;
2864 #endif /* USE_THREADS */
2867 call_list(I32 oldscope, AV *paramList)
2870 line_t oldline = PL_curcop->cop_line;
2875 while (AvFILL(paramList) >= 0) {
2876 CV *cv = (CV*)av_shift(paramList);
2884 PUSHMARK(PL_stack_sp);
2885 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2886 (void)SvPV(atsv, len);
2889 PL_curcop = &PL_compiling;
2890 PL_curcop->cop_line = oldline;
2891 if (paramList == PL_beginav)
2892 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2894 sv_catpv(atsv, "END failed--cleanup aborted");
2895 while (PL_scopestack_ix > oldscope)
2897 croak("%s", SvPVX(atsv));
2905 /* my_exit() was called */
2906 while (PL_scopestack_ix > oldscope)
2909 PL_curstash = PL_defstash;
2911 call_list(oldscope, PL_endav);
2913 PL_curcop = &PL_compiling;
2914 PL_curcop->cop_line = oldline;
2915 if (PL_statusvalue) {
2916 if (paramList == PL_beginav)
2917 croak("BEGIN failed--compilation aborted");
2919 croak("END failed--cleanup aborted");
2924 if (!PL_restartop) {
2925 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2930 PL_curcop = &PL_compiling;
2931 PL_curcop->cop_line = oldline;
2943 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2944 thr, (unsigned long) status));
2953 STATUS_NATIVE_SET(status);
2960 my_failure_exit(void)
2963 if (vaxc$errno & 1) {
2964 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2965 STATUS_NATIVE_SET(44);
2968 if (!vaxc$errno && errno) /* unlikely */
2969 STATUS_NATIVE_SET(44);
2971 STATUS_NATIVE_SET(vaxc$errno);
2976 STATUS_POSIX_SET(errno);
2978 exitstatus = STATUS_POSIX >> 8;
2979 if (exitstatus & 255)
2980 STATUS_POSIX_SET(exitstatus);
2982 STATUS_POSIX_SET(255);
2992 register PERL_CONTEXT *cx;
2997 SvREFCNT_dec(PL_e_script);
2998 PL_e_script = Nullsv;
3001 POPSTACK_TO(PL_mainstack);
3002 if (cxstack_ix >= 0) {
3005 POPBLOCK(cx,PL_curpm);
3014 #endif /* PERL_OBJECT */
3020 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3022 read_e_script(int idx, SV *buf_sv, int maxlen)
3026 p = SvPVX(PL_e_script);
3027 nl = strchr(p, '\n');
3028 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3030 filter_del(read_e_script);
3033 sv_catpvn(buf_sv, p, nl-p);
3034 sv_chop(PL_e_script, nl);