3 * Copyright (c) 1987-1998 Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
16 #include "patchlevel.h"
18 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
23 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
24 char *getenv _((char *)); /* Usually in <stdlib.h> */
40 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
47 static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
49 static void find_beginning _((void));
50 static void forbid_setid _((char *));
51 static void incpush _((char *, int));
52 static void init_interp _((void));
53 static void init_ids _((void));
54 static void init_debugger _((void));
55 static void init_lexer _((void));
56 static void init_main_stash _((void));
58 static struct perl_thread * init_main_thread _((void));
59 #endif /* USE_THREADS */
60 static void init_perllib _((void));
61 static void init_postdump_symbols _((int, char **, char **));
62 static void init_predump_symbols _((void));
63 static void my_exit_jump _((void)) __attribute__((noreturn));
64 static void nuke_stacks _((void));
65 static void open_script _((char *, bool, SV *, int *fd));
66 static void usage _((char *));
67 static void validate_suid _((char *, char*, int));
68 static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
72 CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
73 IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
75 CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
85 PerlInterpreter *sv_interp;
88 New(53, sv_interp, 1, PerlInterpreter);
91 #endif /* PERL_OBJECT */
97 perl_construct(register PerlInterpreter *sv_interp)
103 struct perl_thread *thr;
104 #endif /* FAKE_THREADS */
105 #endif /* USE_THREADS */
108 if (!(PL_curinterp = sv_interp))
114 Zero(sv_interp, 1, PerlInterpreter);
117 /* Init the real globals (and main thread)? */
122 #ifdef ALLOC_THREAD_KEY
125 if (pthread_key_create(&PL_thr_key, 0))
126 croak("panic: pthread_key_create");
128 MUTEX_INIT(&PL_sv_mutex);
130 * Safe to use basic SV functions from now on (though
131 * not things like mortals or tainting yet).
133 MUTEX_INIT(&PL_eval_mutex);
134 COND_INIT(&PL_eval_cond);
135 MUTEX_INIT(&PL_threads_mutex);
136 COND_INIT(&PL_nthreads_cond);
137 #ifdef EMULATE_ATOMIC_REFCOUNTS
138 MUTEX_INIT(&PL_svref_mutex);
139 #endif /* EMULATE_ATOMIC_REFCOUNTS */
141 MUTEX_INIT(&PL_cred_mutex);
143 thr = init_main_thread();
144 #endif /* USE_THREADS */
146 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
148 PL_linestr = NEWSV(65,79);
149 sv_upgrade(PL_linestr,SVt_PVIV);
151 if (!SvREADONLY(&PL_sv_undef)) {
152 /* set read-only and try to insure than we wont see REFCNT==0
155 SvREADONLY_on(&PL_sv_undef);
156 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
158 sv_setpv(&PL_sv_no,PL_No);
160 SvREADONLY_on(&PL_sv_no);
161 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
163 sv_setpv(&PL_sv_yes,PL_Yes);
165 SvREADONLY_on(&PL_sv_yes);
166 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
171 /* PL_sighandlerp = sighandler; */
173 PL_sighandlerp = sighandler;
175 PL_pidstatus = newHV();
179 * There is no way we can refer to them from Perl so close them to save
180 * space. The other alternative would be to provide STDAUX and STDPRN
183 (void)fclose(stdaux);
184 (void)fclose(stdprn);
188 PL_nrs = newSVpv("\n", 1);
189 PL_rs = SvREFCNT_inc(PL_nrs);
194 PL_perl_destruct_level = 1;
196 if (PL_perl_destruct_level > 0)
201 PL_lex_state = LEX_NOTPARSING;
203 PL_start_env.je_prev = NULL;
204 PL_start_env.je_ret = -1;
205 PL_start_env.je_mustcatch = TRUE;
206 PL_top_env = &PL_start_env;
209 SET_NUMERIC_STANDARD();
210 #if defined(SUBVERSION) && SUBVERSION > 0
211 sprintf(PL_patchlevel, "%7.5f", (double) 5
212 + ((double) PATCHLEVEL / (double) 1000)
213 + ((double) SUBVERSION / (double) 100000));
215 sprintf(PL_patchlevel, "%5.3f", (double) 5 +
216 ((double) PATCHLEVEL / (double) 1000));
219 #if defined(LOCAL_PATCH_COUNT)
220 PL_localpatches = local_patches; /* For possible -v */
223 PerlIO_init(); /* Hook to IO system */
225 PL_fdpid = newAV(); /* for remembering popen pids by fd */
226 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
229 New(51,PL_debname,128,char);
230 New(52,PL_debdelim,128,char);
240 perl_destruct(register PerlInterpreter *sv_interp)
244 int destruct_level; /* 0=none, 1=full, 2=full with checks */
249 #endif /* USE_THREADS */
252 if (!(PL_curinterp = sv_interp))
258 /* Pass 1 on any remaining threads: detach joinables, join zombies */
260 MUTEX_LOCK(&PL_threads_mutex);
261 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
262 "perl_destruct: waiting for %d threads...\n",
264 for (t = thr->next; t != thr; t = t->next) {
265 MUTEX_LOCK(&t->mutex);
266 switch (ThrSTATE(t)) {
269 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
270 "perl_destruct: joining zombie %p\n", t));
271 ThrSETSTATE(t, THRf_DEAD);
272 MUTEX_UNLOCK(&t->mutex);
275 * The SvREFCNT_dec below may take a long time (e.g. av
276 * may contain an object scalar whose destructor gets
277 * called) so we have to unlock threads_mutex and start
280 MUTEX_UNLOCK(&PL_threads_mutex);
282 SvREFCNT_dec((SV*)av);
283 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
284 "perl_destruct: joined zombie %p OK\n", t));
286 case THRf_R_JOINABLE:
287 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
288 "perl_destruct: detaching thread %p\n", t));
289 ThrSETSTATE(t, THRf_R_DETACHED);
291 * We unlock threads_mutex and t->mutex in the opposite order
292 * from which we locked them just so that DETACH won't
293 * deadlock if it panics. It's only a breach of good style
294 * not a bug since they are unlocks not locks.
296 MUTEX_UNLOCK(&PL_threads_mutex);
298 MUTEX_UNLOCK(&t->mutex);
301 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
302 "perl_destruct: ignoring %p (state %u)\n",
304 MUTEX_UNLOCK(&t->mutex);
305 /* fall through and out */
308 /* We leave the above "Pass 1" loop with threads_mutex still locked */
310 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
311 while (PL_nthreads > 1)
313 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
314 "perl_destruct: final wait for %d threads\n",
316 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
318 /* At this point, we're the last thread */
319 MUTEX_UNLOCK(&PL_threads_mutex);
320 DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
321 MUTEX_DESTROY(&PL_threads_mutex);
322 COND_DESTROY(&PL_nthreads_cond);
323 #endif /* !defined(FAKE_THREADS) */
324 #endif /* USE_THREADS */
326 destruct_level = PL_perl_destruct_level;
330 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
332 if (destruct_level < i)
345 /* We must account for everything. */
347 /* Destroy the main CV and syntax tree */
349 PL_curpad = AvARRAY(PL_comppad);
350 op_free(PL_main_root);
351 PL_main_root = Nullop;
353 PL_curcop = &PL_compiling;
354 PL_main_start = Nullop;
355 SvREFCNT_dec(PL_main_cv);
359 if (PL_sv_objcount) {
361 * Try to destruct global references. We do this first so that the
362 * destructors and destructees still exist. Some sv's might remain.
363 * Non-referenced objects are on their own.
368 /* unhook hooks which will soon be, or use, destroyed data */
369 SvREFCNT_dec(PL_warnhook);
370 PL_warnhook = Nullsv;
371 SvREFCNT_dec(PL_diehook);
373 SvREFCNT_dec(PL_parsehook);
374 PL_parsehook = Nullsv;
376 /* call exit list functions */
377 while (PL_exitlistlen-- > 0)
378 PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
380 Safefree(PL_exitlist);
382 if (destruct_level == 0){
384 DEBUG_P(debprofdump());
386 /* The exit() function will do everything that needs doing. */
390 /* loosen bonds of global variables */
393 (void)PerlIO_close(PL_rsfp);
397 /* Filters for program text */
398 SvREFCNT_dec(PL_rsfp_filters);
399 PL_rsfp_filters = Nullav;
402 PL_preprocess = FALSE;
408 PL_doswitches = FALSE;
409 PL_dowarn = G_WARN_OFF;
410 PL_doextract = FALSE;
411 PL_sawampersand = FALSE; /* must save all match strings */
412 PL_sawstudy = FALSE; /* do fbm_instr on all strings */
416 Safefree(PL_inplace);
420 SvREFCNT_dec(PL_e_script);
421 PL_e_script = Nullsv;
424 /* magical thingies */
426 Safefree(PL_ofs); /* $, */
429 Safefree(PL_ors); /* $\ */
432 SvREFCNT_dec(PL_rs); /* $/ */
435 SvREFCNT_dec(PL_nrs); /* $/ helper */
438 PL_multiline = 0; /* $* */
440 SvREFCNT_dec(PL_statname);
441 PL_statname = Nullsv;
444 /* defgv, aka *_ should be taken care of elsewhere */
446 /* clean up after study() */
447 SvREFCNT_dec(PL_lastscream);
448 PL_lastscream = Nullsv;
449 Safefree(PL_screamfirst);
451 Safefree(PL_screamnext);
454 /* startup and shutdown function lists */
455 SvREFCNT_dec(PL_beginav);
456 SvREFCNT_dec(PL_endav);
457 SvREFCNT_dec(PL_initav);
462 /* shortcuts just get cleared */
469 PL_argvoutgv = Nullgv;
471 PL_last_in_gv = Nullgv;
474 /* reset so print() ends up where we expect */
477 /* Prepare to destruct main symbol table. */
484 if (destruct_level >= 2) {
485 if (PL_scopestack_ix != 0)
486 warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
487 (long)PL_scopestack_ix);
488 if (PL_savestack_ix != 0)
489 warn("Unbalanced saves: %ld more saves than restores\n",
490 (long)PL_savestack_ix);
491 if (PL_tmps_floor != -1)
492 warn("Unbalanced tmps: %ld more allocs than frees\n",
493 (long)PL_tmps_floor + 1);
494 if (cxstack_ix != -1)
495 warn("Unbalanced context: %ld more PUSHes than POPs\n",
496 (long)cxstack_ix + 1);
499 /* Now absolutely destruct everything, somehow or other, loops or no. */
501 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
502 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
503 last_sv_count = PL_sv_count;
506 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
507 SvFLAGS(PL_strtab) |= SVt_PVHV;
509 /* Destruct the global string table. */
511 /* Yell and reset the HeVAL() slots that are still holding refcounts,
512 * so that sv_free() won't fail on them.
520 max = HvMAX(PL_strtab);
521 array = HvARRAY(PL_strtab);
525 warn("Unbalanced string table refcount: (%d) for \"%s\"",
526 HeVAL(hent) - Nullsv, HeKEY(hent));
527 HeVAL(hent) = Nullsv;
537 SvREFCNT_dec(PL_strtab);
539 if (PL_sv_count != 0)
540 warn("Scalars leaked: %ld\n", (long)PL_sv_count);
544 /* No SVs have survived, need to clean out */
546 PL_pidstatus = Nullhv;
547 Safefree(PL_origfilename);
548 Safefree(PL_archpat_auto);
549 Safefree(PL_reg_start_tmp);
550 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
551 Safefree(PL_op_mask);
553 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
555 DEBUG_P(debprofdump());
557 MUTEX_DESTROY(&PL_strtab_mutex);
558 MUTEX_DESTROY(&PL_sv_mutex);
559 MUTEX_DESTROY(&PL_eval_mutex);
560 MUTEX_DESTROY(&PL_cred_mutex);
561 COND_DESTROY(&PL_eval_cond);
563 /* As the penultimate thing, free the non-arena SV for thrsv */
564 Safefree(SvPVX(PL_thrsv));
565 Safefree(SvANY(PL_thrsv));
568 #endif /* USE_THREADS */
570 /* As the absolutely last thing, free the non-arena SV for mess() */
573 /* it could have accumulated taint magic */
574 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
577 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
578 moremagic = mg->mg_moremagic;
579 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
580 Safefree(mg->mg_ptr);
584 /* we know that type >= SVt_PV */
585 SvOOK_off(PL_mess_sv);
586 Safefree(SvPVX(PL_mess_sv));
587 Safefree(SvANY(PL_mess_sv));
588 Safefree(PL_mess_sv);
597 perl_free(PerlInterpreter *sv_interp)
603 if (!(PL_curinterp = sv_interp))
611 perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
613 perl_atexit(void (*fn) (void *), void *ptr)
616 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
617 PL_exitlist[PL_exitlistlen].fn = fn;
618 PL_exitlist[PL_exitlistlen].ptr = ptr;
624 perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
626 perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
632 char *scriptname = NULL;
633 VOL bool dosearch = FALSE;
641 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
644 croak("suidperl is no longer needed since the kernel can now execute\n\
645 setuid perl scripts securely.\n");
650 if (!(PL_curinterp = sv_interp))
654 #if defined(NeXT) && defined(__DYNAMIC__)
655 _dyld_lookup_and_bind
656 ("__environ", (unsigned long *) &environ_pointer, NULL);
661 #ifndef VMS /* VMS doesn't have environ array */
662 PL_origenviron = environ;
667 /* Come here if running an undumped a.out. */
669 PL_origfilename = savepv(argv[0]);
670 PL_do_undump = FALSE;
671 cxstack_ix = -1; /* start label stack again */
673 init_postdump_symbols(argc,argv,env);
678 PL_curpad = AvARRAY(PL_comppad);
679 op_free(PL_main_root);
680 PL_main_root = Nullop;
682 PL_main_start = Nullop;
683 SvREFCNT_dec(PL_main_cv);
687 oldscope = PL_scopestack_ix;
688 PL_dowarn = G_WARN_OFF;
696 /* my_exit() was called */
697 while (PL_scopestack_ix > oldscope)
700 PL_curstash = PL_defstash;
702 call_list(oldscope, PL_endav);
704 return STATUS_NATIVE_EXPORT;
707 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
711 sv_setpvn(PL_linestr,"",0);
712 sv = newSVpv("",0); /* first used for -I flags */
716 for (argc--,argv++; argc > 0; argc--,argv++) {
717 if (argv[0][0] != '-' || !argv[0][1])
721 validarg = " PHOOEY ";
749 if (s = moreswitches(s))
759 if (PL_euid != PL_uid || PL_egid != PL_gid)
760 croak("No -e allowed in setuid scripts");
762 PL_e_script = newSVpv("",0);
763 filter_add(read_e_script, NULL);
766 sv_catpv(PL_e_script, s);
768 sv_catpv(PL_e_script, argv[1]);
772 croak("No code specified for -e");
773 sv_catpv(PL_e_script, "\n");
776 case 'I': /* -I handled both here and in moreswitches() */
778 if (!*++s && (s=argv[1]) != Nullch) {
781 while (s && isSPACE(*s))
785 for (e = s; *e && !isSPACE(*e); e++) ;
792 } /* XXX else croak? */
796 PL_preprocess = TRUE;
806 PL_preambleav = newAV();
807 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
809 PL_Sv = newSVpv("print myconfig();",0);
811 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
813 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
815 #if defined(DEBUGGING) || defined(MULTIPLICITY)
816 sv_catpv(PL_Sv,"\" Compile-time options:");
818 sv_catpv(PL_Sv," DEBUGGING");
821 sv_catpv(PL_Sv," MULTIPLICITY");
823 sv_catpv(PL_Sv,"\\n\",");
825 #if defined(LOCAL_PATCH_COUNT)
826 if (LOCAL_PATCH_COUNT > 0) {
828 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
829 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
830 if (PL_localpatches[i])
831 sv_catpvf(PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
835 sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME);
838 sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
840 sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
845 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
846 print \" \\%ENV:\\n @env\\n\" if @env; \
847 print \" \\@INC:\\n @INC\\n\";");
850 PL_Sv = newSVpv("config_vars(qw(",0);
851 sv_catpv(PL_Sv, ++s);
852 sv_catpv(PL_Sv, "))");
855 av_push(PL_preambleav, PL_Sv);
856 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
862 PL_cddir = savepv(s);
867 if (!*++s || isSPACE(*s)) {
871 /* catch use of gnu style long options */
872 if (strEQ(s, "version")) {
876 if (strEQ(s, "help")) {
883 croak("Unrecognized switch: -%s (-h will show valid options)",s);
888 if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) {
899 if (!strchr("DIMUdmw", *s))
900 croak("Illegal switch in PERL5OPT: -%c", *s);
906 scriptname = argv[0];
909 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
911 else if (scriptname == Nullch) {
913 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
921 open_script(scriptname,dosearch,sv,&fdscript);
923 validate_suid(validarg, scriptname,fdscript);
928 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
929 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
930 CvUNIQUE_on(PL_compcv);
932 PL_comppad = newAV();
933 av_push(PL_comppad, Nullsv);
934 PL_curpad = AvARRAY(PL_comppad);
935 PL_comppad_name = newAV();
936 PL_comppad_name_fill = 0;
937 PL_min_intro_pending = 0;
940 av_store(PL_comppad_name, 0, newSVpv("@_", 2));
941 PL_curpad[0] = (SV*)newAV();
942 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
943 CvOWNER(PL_compcv) = 0;
944 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
945 MUTEX_INIT(CvMUTEXP(PL_compcv));
946 #endif /* USE_THREADS */
948 comppadlist = newAV();
949 AvREAL_off(comppadlist);
950 av_store(comppadlist, 0, (SV*)PL_comppad_name);
951 av_store(comppadlist, 1, (SV*)PL_comppad);
952 CvPADLIST(PL_compcv) = comppadlist;
954 boot_core_UNIVERSAL();
957 (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */
958 #if defined(VMS) || defined(WIN32) || defined(DJGPP)
962 init_predump_symbols();
963 /* init_postdump_symbols not currently designed to be called */
964 /* more than once (ENV isn't cleared first, for example) */
965 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
967 init_postdump_symbols(argc,argv,env);
971 /* now parse the script */
973 SETERRNO(0,SS$_NORMAL);
975 if (yyparse() || PL_error_count) {
977 croak("%s had compilation errors.\n", PL_origfilename);
979 croak("Execution of %s aborted due to compilation errors.\n",
983 PL_curcop->cop_line = 0;
984 PL_curstash = PL_defstash;
985 PL_preprocess = FALSE;
987 SvREFCNT_dec(PL_e_script);
988 PL_e_script = Nullsv;
991 /* now that script is parsed, we can modify record separator */
993 PL_rs = SvREFCNT_inc(PL_nrs);
994 sv_setsv(perl_get_sv("/", TRUE), PL_rs);
998 if (ckWARN(WARN_ONCE))
999 gv_check(PL_defstash);
1005 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1006 dump_mstats("after compilation:");
1019 perl_run(PerlInterpreter *sv_interp)
1028 if (!(PL_curinterp = sv_interp))
1032 oldscope = PL_scopestack_ix;
1037 cxstack_ix = -1; /* start context stack again */
1040 /* my_exit() was called */
1041 while (PL_scopestack_ix > oldscope)
1044 PL_curstash = PL_defstash;
1046 call_list(oldscope, PL_endav);
1048 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1049 dump_mstats("after execution: ");
1052 return STATUS_NATIVE_EXPORT;
1054 if (!PL_restartop) {
1055 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
1060 POPSTACK_TO(PL_mainstack);
1064 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1065 PL_sawampersand ? "Enabling" : "Omitting"));
1067 if (!PL_restartop) {
1068 DEBUG_x(dump_all());
1069 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1070 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n",
1071 (unsigned long) thr));
1074 PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename);
1077 if (PERLDB_SINGLE && PL_DBsingle)
1078 sv_setiv(PL_DBsingle, 1);
1080 call_list(oldscope, PL_initav);
1086 PL_op = PL_restartop;
1090 else if (PL_main_start) {
1091 CvDEPTH(PL_main_cv) = 1;
1092 PL_op = PL_main_start;
1102 perl_get_sv(char *name, I32 create)
1106 if (name[1] == '\0' && !isALPHA(name[0])) {
1107 PADOFFSET tmp = find_threadsv(name);
1108 if (tmp != NOT_IN_PAD) {
1110 return THREADSV(tmp);
1113 #endif /* USE_THREADS */
1114 gv = gv_fetchpv(name, create, SVt_PV);
1121 perl_get_av(char *name, I32 create)
1123 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1132 perl_get_hv(char *name, I32 create)
1134 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1143 perl_get_cv(char *name, I32 create)
1145 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1146 if (create && !GvCVu(gv))
1147 return newSUB(start_subparse(FALSE, 0),
1148 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1156 /* Be sure to refetch the stack pointer after calling these routines. */
1159 perl_call_argv(char *sub_name, I32 flags, register char **argv)
1161 /* See G_* flags in cop.h */
1162 /* null terminated arg list */
1169 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1174 return perl_call_pv(sub_name, flags);
1178 perl_call_pv(char *sub_name, I32 flags)
1179 /* name of the subroutine */
1180 /* See G_* flags in cop.h */
1182 return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
1186 perl_call_method(char *methname, I32 flags)
1187 /* name of the subroutine */
1188 /* See G_* flags in cop.h */
1194 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1199 return perl_call_sv(*PL_stack_sp--, flags);
1202 /* May be called with any of a CV, a GV, or an SV containing the name. */
1204 perl_call_sv(SV *sv, I32 flags)
1206 /* See G_* flags in cop.h */
1209 LOGOP myop; /* fake syntax tree node */
1213 bool oldcatch = CATCH_GET;
1218 if (flags & G_DISCARD) {
1223 Zero(&myop, 1, LOGOP);
1224 myop.op_next = Nullop;
1225 if (!(flags & G_NOARGS))
1226 myop.op_flags |= OPf_STACKED;
1227 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1228 (flags & G_ARRAY) ? OPf_WANT_LIST :
1233 EXTEND(PL_stack_sp, 1);
1234 *++PL_stack_sp = sv;
1236 oldscope = PL_scopestack_ix;
1238 if (PERLDB_SUB && PL_curstash != PL_debstash
1239 /* Handle first BEGIN of -d. */
1240 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1241 /* Try harder, since this may have been a sighandler, thus
1242 * curstash may be meaningless. */
1243 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1244 && !(flags & G_NODEBUG))
1245 PL_op->op_private |= OPpENTERSUB_DB;
1247 if (flags & G_EVAL) {
1248 cLOGOP->op_other = PL_op;
1250 /* we're trying to emulate pp_entertry() here */
1252 register PERL_CONTEXT *cx;
1253 I32 gimme = GIMME_V;
1258 push_return(PL_op->op_next);
1259 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1261 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1264 if (flags & G_KEEPERR)
1279 /* my_exit() was called */
1280 PL_curstash = PL_defstash;
1284 croak("Callback called exit");
1289 PL_op = PL_restartop;
1293 PL_stack_sp = PL_stack_base + oldmark;
1294 if (flags & G_ARRAY)
1298 *++PL_stack_sp = &PL_sv_undef;
1306 if (PL_op == (OP*)&myop)
1307 PL_op = pp_entersub(ARGS);
1310 retval = PL_stack_sp - (PL_stack_base + oldmark);
1311 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1315 if (flags & G_EVAL) {
1316 if (PL_scopestack_ix > oldscope) {
1320 register PERL_CONTEXT *cx;
1332 CATCH_SET(oldcatch);
1334 if (flags & G_DISCARD) {
1335 PL_stack_sp = PL_stack_base + oldmark;
1344 /* Eval a string. The G_EVAL flag is always assumed. */
1347 perl_eval_sv(SV *sv, I32 flags)
1349 /* See G_* flags in cop.h */
1352 UNOP myop; /* fake syntax tree node */
1353 I32 oldmark = SP - PL_stack_base;
1360 if (flags & G_DISCARD) {
1367 Zero(PL_op, 1, UNOP);
1368 EXTEND(PL_stack_sp, 1);
1369 *++PL_stack_sp = sv;
1370 oldscope = PL_scopestack_ix;
1372 if (!(flags & G_NOARGS))
1373 myop.op_flags = OPf_STACKED;
1374 myop.op_next = Nullop;
1375 myop.op_type = OP_ENTEREVAL;
1376 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1377 (flags & G_ARRAY) ? OPf_WANT_LIST :
1379 if (flags & G_KEEPERR)
1380 myop.op_flags |= OPf_SPECIAL;
1390 /* my_exit() was called */
1391 PL_curstash = PL_defstash;
1395 croak("Callback called exit");
1400 PL_op = PL_restartop;
1404 PL_stack_sp = PL_stack_base + oldmark;
1405 if (flags & G_ARRAY)
1409 *++PL_stack_sp = &PL_sv_undef;
1414 if (PL_op == (OP*)&myop)
1415 PL_op = pp_entereval(ARGS);
1418 retval = PL_stack_sp - (PL_stack_base + oldmark);
1419 if (!(flags & G_KEEPERR))
1424 if (flags & G_DISCARD) {
1425 PL_stack_sp = PL_stack_base + oldmark;
1435 perl_eval_pv(char *p, I32 croak_on_error)
1438 SV* sv = newSVpv(p, 0);
1441 perl_eval_sv(sv, G_SCALAR);
1448 if (croak_on_error && SvTRUE(ERRSV))
1449 croak(SvPVx(ERRSV, PL_na));
1454 /* Require a module. */
1457 perl_require_pv(char *pv)
1461 PUSHSTACKi(PERLSI_REQUIRE);
1463 sv = sv_newmortal();
1464 sv_setpv(sv, "require '");
1467 perl_eval_sv(sv, G_DISCARD);
1473 magicname(char *sym, char *name, I32 namlen)
1477 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1478 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1482 usage(char *name) /* XXX move this out into a module ? */
1485 /* This message really ought to be max 23 lines.
1486 * Removed -h because the user already knows that opton. Others? */
1488 static char *usage_msg[] = {
1489 "-0[octal] specify record separator (\\0, if no argument)",
1490 "-a autosplit mode with -n or -p (splits $_ into @F)",
1491 "-c check syntax only (runs BEGIN and END blocks)",
1492 "-d[:debugger] run scripts under debugger",
1493 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1494 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1495 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1496 "-i[extension] edit <> files in place (make backup if extension supplied)",
1497 "-Idirectory specify @INC/#include directory (may be used more than once)",
1498 "-l[octal] enable line ending processing, specifies line terminator",
1499 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1500 "-n assume 'while (<>) { ... }' loop around your script",
1501 "-p assume loop like -n but print line also like sed",
1502 "-P run script through C preprocessor before compilation",
1503 "-s enable some switch parsing for switches after script name",
1504 "-S look for the script using PATH environment variable",
1505 "-T turn on tainting checks",
1506 "-u dump core after parsing script",
1507 "-U allow unsafe operations",
1508 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1509 "-V[:variable] print perl configuration information",
1510 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1511 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1515 char **p = usage_msg;
1517 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1519 printf("\n %s", *p++);
1522 /* This routine handles any switches that can be given during run */
1525 moreswitches(char *s)
1534 rschar = scan_oct(s, 4, &numlen);
1535 SvREFCNT_dec(PL_nrs);
1536 if (rschar & ~((U8)~0))
1537 PL_nrs = &PL_sv_undef;
1538 else if (!rschar && numlen >= 2)
1539 PL_nrs = newSVpv("", 0);
1542 PL_nrs = newSVpv(&ch, 1);
1548 PL_splitstr = savepv(s + 1);
1562 if (*s == ':' || *s == '=') {
1563 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1567 PL_perldb = PERLDB_ALL;
1574 if (isALPHA(s[1])) {
1575 static char debopts[] = "psltocPmfrxuLHXDS";
1578 for (s++; *s && (d = strchr(debopts,*s)); s++)
1579 PL_debug |= 1 << (d - debopts);
1582 PL_debug = atoi(s+1);
1583 for (s++; isDIGIT(*s); s++) ;
1585 PL_debug |= 0x80000000;
1587 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1588 for (s++; isALNUM(*s); s++) ;
1593 usage(PL_origargv[0]);
1597 Safefree(PL_inplace);
1598 PL_inplace = savepv(s+1);
1600 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1603 if (*s == '-') /* Additional switches on #! line. */
1607 case 'I': /* -I handled both here and in parse_perl() */
1610 while (*s && isSPACE(*s))
1614 for (e = s; *e && !isSPACE(*e); e++) ;
1615 p = savepvn(s, e-s);
1621 croak("No space allowed after -I");
1629 PL_ors = savepv("\n");
1631 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1636 if (RsPARA(PL_nrs)) {
1641 PL_ors = SvPV(PL_nrs, PL_orslen);
1642 PL_ors = savepvn(PL_ors, PL_orslen);
1646 forbid_setid("-M"); /* XXX ? */
1649 forbid_setid("-m"); /* XXX ? */
1654 /* -M-foo == 'no foo' */
1655 if (*s == '-') { use = "no "; ++s; }
1656 sv = newSVpv(use,0);
1658 /* We allow -M'Module qw(Foo Bar)' */
1659 while(isALNUM(*s) || *s==':') ++s;
1661 sv_catpv(sv, start);
1662 if (*(start-1) == 'm') {
1664 croak("Can't use '%c' after -mname", *s);
1665 sv_catpv( sv, " ()");
1668 sv_catpvn(sv, start, s-start);
1669 sv_catpv(sv, " split(/,/,q{");
1674 if (PL_preambleav == NULL)
1675 PL_preambleav = newAV();
1676 av_push(PL_preambleav, sv);
1679 croak("No space allowed after -%c", *(s-1));
1691 PL_doswitches = TRUE;
1696 croak("Too late for \"-T\" option");
1700 PL_do_undump = TRUE;
1708 #if defined(SUBVERSION) && SUBVERSION > 0
1709 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1710 PATCHLEVEL, SUBVERSION, ARCHNAME);
1712 printf("\nThis is perl, version %s built for %s",
1713 PL_patchlevel, ARCHNAME);
1715 #if defined(LOCAL_PATCH_COUNT)
1716 if (LOCAL_PATCH_COUNT > 0)
1717 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1718 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1721 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1723 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1726 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1727 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1730 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1731 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1734 printf("atariST series port, ++jrb bammi@cadence.com\n");
1737 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1740 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1743 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
1746 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n");
1749 printf("VM/ESA port by Neale Ferguson, 1998\n");
1752 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n");
1754 #ifdef BINARY_BUILD_NOTICE
1755 BINARY_BUILD_NOTICE;
1758 Perl may be copied only under the terms of either the Artistic License or the\n\
1759 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1760 Complete documentation for Perl, including FAQ lists, should be found on\n\
1761 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1762 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1765 if (! (PL_dowarn & G_WARN_ALL_MASK))
1766 PL_dowarn |= G_WARN_ON;
1770 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1771 PL_compiling.cop_warnings = WARN_ALL ;
1775 PL_dowarn = G_WARN_ALL_OFF;
1776 PL_compiling.cop_warnings = WARN_NONE ;
1781 if (s[1] == '-') /* Additional switches on #! line. */
1786 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1792 #ifdef ALTERNATE_SHEBANG
1793 case 'S': /* OS/2 needs -S on "extproc" line. */
1801 croak("Can't emulate -%.1s on #! line",s);
1806 /* compliments of Tom Christiansen */
1808 /* unexec() can be found in the Gnu emacs distribution */
1809 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1820 prog = newSVpv(BIN_EXP, 0);
1821 sv_catpv(prog, "/perl");
1822 file = newSVpv(PL_origfilename, 0);
1823 sv_catpv(file, ".perldump");
1825 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1826 /* unexec prints msg to stderr in case of failure */
1827 PerlProc_exit(status);
1830 # include <lib$routines.h>
1831 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1833 ABORT(); /* for use with undump */
1838 /* initialize curinterp */
1843 #ifdef PERL_OBJECT /* XXX kludge */
1846 PL_chopset = " \n-"; \
1847 PL_copline = NOLINE; \
1848 PL_curcop = &PL_compiling;\
1849 PL_curcopdb = NULL; \
1852 PL_laststatval = -1; \
1853 PL_laststype = OP_STAT; \
1854 PL_maxscream = -1; \
1855 PL_maxsysfd = MAXSYSFD; \
1856 PL_statname = Nullsv; \
1857 PL_tmps_floor = -1; \
1859 PL_op_mask = NULL; \
1861 PL_laststatval = -1; \
1862 PL_laststype = OP_STAT; \
1863 PL_mess_sv = Nullsv; \
1864 PL_splitstr = " "; \
1865 PL_generation = 100; \
1866 PL_exitlist = NULL; \
1867 PL_exitlistlen = 0; \
1869 PL_in_clean_objs = FALSE; \
1870 PL_in_clean_all = FALSE; \
1871 PL_profiledata = NULL; \
1873 PL_rsfp_filters = Nullav; \
1878 # ifdef MULTIPLICITY
1879 # define PERLVAR(var,type)
1880 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1881 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1882 # include "intrpvar.h"
1883 # ifndef USE_THREADS
1884 # include "thrdvar.h"
1890 # define PERLVAR(var,type)
1891 # define PERLVARI(var,type,init) PL_##var = init;
1892 # define PERLVARIC(var,type,init) PL_##var = init;
1893 # include "intrpvar.h"
1894 # ifndef USE_THREADS
1895 # include "thrdvar.h"
1906 init_main_stash(void)
1911 /* Note that strtab is a rather special HV. Assumptions are made
1912 about not iterating on it, and not adding tie magic to it.
1913 It is properly deallocated in perl_destruct() */
1914 PL_strtab = newHV();
1916 MUTEX_INIT(&PL_strtab_mutex);
1918 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1919 hv_ksplit(PL_strtab, 512);
1921 PL_curstash = PL_defstash = newHV();
1922 PL_curstname = newSVpv("main",4);
1923 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1924 SvREFCNT_dec(GvHV(gv));
1925 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1927 HvNAME(PL_defstash) = savepv("main");
1928 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1929 GvMULTI_on(PL_incgv);
1930 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1931 GvMULTI_on(PL_hintgv);
1932 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1933 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1934 GvMULTI_on(PL_errgv);
1935 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1936 GvMULTI_on(PL_replgv);
1937 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1938 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1939 sv_setpvn(ERRSV, "", 0);
1940 PL_curstash = PL_defstash;
1941 PL_compiling.cop_stash = PL_defstash;
1942 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1943 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1944 /* We must init $/ before switches are processed. */
1945 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1949 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1957 PL_origfilename = savepv("-e");
1960 /* if find_script() returns, it returns a malloc()-ed value */
1961 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1963 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1964 char *s = scriptname + 8;
1965 *fdscript = atoi(s);
1969 scriptname = savepv(s + 1);
1970 Safefree(PL_origfilename);
1971 PL_origfilename = scriptname;
1976 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1977 if (strEQ(PL_origfilename,"-"))
1979 if (*fdscript >= 0) {
1980 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1981 #if defined(HAS_FCNTL) && defined(F_SETFD)
1983 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1986 else if (PL_preprocess) {
1987 char *cpp_cfg = CPPSTDIN;
1988 SV *cpp = newSVpv("",0);
1989 SV *cmd = NEWSV(0,0);
1991 if (strEQ(cpp_cfg, "cppstdin"))
1992 sv_catpvf(cpp, "%s/", BIN_EXP);
1993 sv_catpv(cpp, cpp_cfg);
1996 sv_catpv(sv,PRIVLIB_EXP);
2000 sed %s -e \"/^[^#]/b\" \
2001 -e \"/^#[ ]*include[ ]/b\" \
2002 -e \"/^#[ ]*define[ ]/b\" \
2003 -e \"/^#[ ]*if[ ]/b\" \
2004 -e \"/^#[ ]*ifdef[ ]/b\" \
2005 -e \"/^#[ ]*ifndef[ ]/b\" \
2006 -e \"/^#[ ]*else/b\" \
2007 -e \"/^#[ ]*elif[ ]/b\" \
2008 -e \"/^#[ ]*undef[ ]/b\" \
2009 -e \"/^#[ ]*endif/b\" \
2012 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2016 %s %s -e '/^[^#]/b' \
2017 -e '/^#[ ]*include[ ]/b' \
2018 -e '/^#[ ]*define[ ]/b' \
2019 -e '/^#[ ]*if[ ]/b' \
2020 -e '/^#[ ]*ifdef[ ]/b' \
2021 -e '/^#[ ]*ifndef[ ]/b' \
2022 -e '/^#[ ]*else/b' \
2023 -e '/^#[ ]*elif[ ]/b' \
2024 -e '/^#[ ]*undef[ ]/b' \
2025 -e '/^#[ ]*endif/b' \
2030 %s %s -e '/^[^#]/b' \
2031 -e '/^#[ ]*include[ ]/b' \
2032 -e '/^#[ ]*define[ ]/b' \
2033 -e '/^#[ ]*if[ ]/b' \
2034 -e '/^#[ ]*ifdef[ ]/b' \
2035 -e '/^#[ ]*ifndef[ ]/b' \
2036 -e '/^#[ ]*else/b' \
2037 -e '/^#[ ]*elif[ ]/b' \
2038 -e '/^#[ ]*undef[ ]/b' \
2039 -e '/^#[ ]*endif/b' \
2048 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2050 scriptname, cpp, sv, CPPMINUS);
2051 PL_doextract = FALSE;
2052 #ifdef IAMSUID /* actually, this is caught earlier */
2053 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2055 (void)seteuid(PL_uid); /* musn't stay setuid root */
2058 (void)setreuid((Uid_t)-1, PL_uid);
2060 #ifdef HAS_SETRESUID
2061 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2063 PerlProc_setuid(PL_uid);
2067 if (PerlProc_geteuid() != PL_uid)
2068 croak("Can't do seteuid!\n");
2070 #endif /* IAMSUID */
2071 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2075 else if (!*scriptname) {
2076 forbid_setid("program input from stdin");
2077 PL_rsfp = PerlIO_stdin();
2080 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2081 #if defined(HAS_FCNTL) && defined(F_SETFD)
2083 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2088 #ifndef IAMSUID /* in case script is not readable before setuid */
2090 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2091 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2094 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2095 croak("Can't do setuid\n");
2099 croak("Can't open perl script \"%s\": %s\n",
2100 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2105 validate_suid(char *validarg, char *scriptname, int fdscript)
2109 /* do we need to emulate setuid on scripts? */
2111 /* This code is for those BSD systems that have setuid #! scripts disabled
2112 * in the kernel because of a security problem. Merely defining DOSUID
2113 * in perl will not fix that problem, but if you have disabled setuid
2114 * scripts in the kernel, this will attempt to emulate setuid and setgid
2115 * on scripts that have those now-otherwise-useless bits set. The setuid
2116 * root version must be called suidperl or sperlN.NNN. If regular perl
2117 * discovers that it has opened a setuid script, it calls suidperl with
2118 * the same argv that it had. If suidperl finds that the script it has
2119 * just opened is NOT setuid root, it sets the effective uid back to the
2120 * uid. We don't just make perl setuid root because that loses the
2121 * effective uid we had before invoking perl, if it was different from the
2124 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2125 * be defined in suidperl only. suidperl must be setuid root. The
2126 * Configure script will set this up for you if you want it.
2133 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2134 croak("Can't stat script \"%s\"",PL_origfilename);
2135 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2139 #ifndef HAS_SETREUID
2140 /* On this access check to make sure the directories are readable,
2141 * there is actually a small window that the user could use to make
2142 * filename point to an accessible directory. So there is a faint
2143 * chance that someone could execute a setuid script down in a
2144 * non-accessible directory. I don't know what to do about that.
2145 * But I don't think it's too important. The manual lies when
2146 * it says access() is useful in setuid programs.
2148 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2149 croak("Permission denied");
2151 /* If we can swap euid and uid, then we can determine access rights
2152 * with a simple stat of the file, and then compare device and
2153 * inode to make sure we did stat() on the same file we opened.
2154 * Then we just have to make sure he or she can execute it.
2157 struct stat tmpstatbuf;
2161 setreuid(PL_euid,PL_uid) < 0
2164 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2167 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2168 croak("Can't swap uid and euid"); /* really paranoid */
2169 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2170 croak("Permission denied"); /* testing full pathname here */
2171 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2172 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2173 (void)PerlIO_close(PL_rsfp);
2174 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2175 PerlIO_printf(PL_rsfp,
2176 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2177 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2178 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2179 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2180 SvPVX(GvSV(PL_curcop->cop_filegv)),
2181 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2182 (void)PerlProc_pclose(PL_rsfp);
2184 croak("Permission denied\n");
2188 setreuid(PL_uid,PL_euid) < 0
2190 # if defined(HAS_SETRESUID)
2191 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2194 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2195 croak("Can't reswap uid and euid");
2196 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2197 croak("Permission denied\n");
2199 #endif /* HAS_SETREUID */
2200 #endif /* IAMSUID */
2202 if (!S_ISREG(PL_statbuf.st_mode))
2203 croak("Permission denied");
2204 if (PL_statbuf.st_mode & S_IWOTH)
2205 croak("Setuid/gid script is writable by world");
2206 PL_doswitches = FALSE; /* -s is insecure in suid */
2207 PL_curcop->cop_line++;
2208 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2209 strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
2210 croak("No #! line");
2211 s = SvPV(PL_linestr,PL_na)+2;
2213 while (!isSPACE(*s)) s++;
2214 for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
2215 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2216 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2217 croak("Not a perl script");
2218 while (*s == ' ' || *s == '\t') s++;
2220 * #! arg must be what we saw above. They can invoke it by
2221 * mentioning suidperl explicitly, but they may not add any strange
2222 * arguments beyond what #! says if they do invoke suidperl that way.
2224 len = strlen(validarg);
2225 if (strEQ(validarg," PHOOEY ") ||
2226 strnNE(s,validarg,len) || !isSPACE(s[len]))
2227 croak("Args must match #! line");
2230 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2231 PL_euid == PL_statbuf.st_uid)
2233 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2234 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2235 #endif /* IAMSUID */
2237 if (PL_euid) { /* oops, we're not the setuid root perl */
2238 (void)PerlIO_close(PL_rsfp);
2241 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2243 croak("Can't do setuid\n");
2246 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2248 (void)setegid(PL_statbuf.st_gid);
2251 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2253 #ifdef HAS_SETRESGID
2254 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2256 PerlProc_setgid(PL_statbuf.st_gid);
2260 if (PerlProc_getegid() != PL_statbuf.st_gid)
2261 croak("Can't do setegid!\n");
2263 if (PL_statbuf.st_mode & S_ISUID) {
2264 if (PL_statbuf.st_uid != PL_euid)
2266 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2269 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2271 #ifdef HAS_SETRESUID
2272 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2274 PerlProc_setuid(PL_statbuf.st_uid);
2278 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2279 croak("Can't do seteuid!\n");
2281 else if (PL_uid) { /* oops, mustn't run as root */
2283 (void)seteuid((Uid_t)PL_uid);
2286 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2288 #ifdef HAS_SETRESUID
2289 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2291 PerlProc_setuid((Uid_t)PL_uid);
2295 if (PerlProc_geteuid() != PL_uid)
2296 croak("Can't do seteuid!\n");
2299 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2300 croak("Permission denied\n"); /* they can't do this */
2303 else if (PL_preprocess)
2304 croak("-P not allowed for setuid/setgid script\n");
2305 else if (fdscript >= 0)
2306 croak("fd script not allowed in suidperl\n");
2308 croak("Script is not setuid/setgid in suidperl\n");
2310 /* We absolutely must clear out any saved ids here, so we */
2311 /* exec the real perl, substituting fd script for scriptname. */
2312 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2313 PerlIO_rewind(PL_rsfp);
2314 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2315 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2316 if (!PL_origargv[which])
2317 croak("Permission denied");
2318 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2319 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2320 #if defined(HAS_FCNTL) && defined(F_SETFD)
2321 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2323 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2324 croak("Can't do setuid\n");
2325 #endif /* IAMSUID */
2327 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2328 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2330 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2331 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2333 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2336 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2337 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2338 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2339 /* not set-id, must be wrapped */
2345 find_beginning(void)
2347 register char *s, *s2;
2349 /* skip forward in input to the real script? */
2352 while (PL_doextract) {
2353 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2354 croak("No Perl script found in input\n");
2355 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2356 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2357 PL_doextract = FALSE;
2358 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2360 while (*s == ' ' || *s == '\t') s++;
2362 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2363 if (strnEQ(s2-4,"perl",4))
2365 while (s = moreswitches(s)) ;
2367 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2368 croak("Can't chdir to %s",PL_cddir);
2377 PL_uid = (int)PerlProc_getuid();
2378 PL_euid = (int)PerlProc_geteuid();
2379 PL_gid = (int)PerlProc_getgid();
2380 PL_egid = (int)PerlProc_getegid();
2382 PL_uid |= PL_gid << 16;
2383 PL_euid |= PL_egid << 16;
2385 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2389 forbid_setid(char *s)
2391 if (PL_euid != PL_uid)
2392 croak("No %s allowed while running setuid", s);
2393 if (PL_egid != PL_gid)
2394 croak("No %s allowed while running setgid", s);
2401 PL_curstash = PL_debstash;
2402 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2403 AvREAL_off(PL_dbargs);
2404 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2405 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2406 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2407 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2408 sv_setiv(PL_DBsingle, 0);
2409 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2410 sv_setiv(PL_DBtrace, 0);
2411 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2412 sv_setiv(PL_DBsignal, 0);
2413 PL_curstash = PL_defstash;
2416 #ifndef STRESS_REALLOC
2417 #define REASONABLE(size) (size)
2419 #define REASONABLE(size) (1) /* unreasonable */
2423 init_stacks(ARGSproto)
2425 /* start with 128-item stack and 8K cxstack */
2426 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2427 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2428 PL_curstackinfo->si_type = PERLSI_MAIN;
2429 PL_curstack = PL_curstackinfo->si_stack;
2430 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2432 PL_stack_base = AvARRAY(PL_curstack);
2433 PL_stack_sp = PL_stack_base;
2434 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2436 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2439 PL_tmps_max = REASONABLE(128);
2441 New(54,PL_markstack,REASONABLE(32),I32);
2442 PL_markstack_ptr = PL_markstack;
2443 PL_markstack_max = PL_markstack + REASONABLE(32);
2447 New(54,PL_scopestack,REASONABLE(32),I32);
2448 PL_scopestack_ix = 0;
2449 PL_scopestack_max = REASONABLE(32);
2451 New(54,PL_savestack,REASONABLE(128),ANY);
2452 PL_savestack_ix = 0;
2453 PL_savestack_max = REASONABLE(128);
2455 New(54,PL_retstack,REASONABLE(16),OP*);
2457 PL_retstack_max = REASONABLE(16);
2466 while (PL_curstackinfo->si_next)
2467 PL_curstackinfo = PL_curstackinfo->si_next;
2468 while (PL_curstackinfo) {
2469 PERL_SI *p = PL_curstackinfo->si_prev;
2470 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2471 Safefree(PL_curstackinfo->si_cxstack);
2472 Safefree(PL_curstackinfo);
2473 PL_curstackinfo = p;
2475 Safefree(PL_tmps_stack);
2476 Safefree(PL_markstack);
2477 Safefree(PL_scopestack);
2478 Safefree(PL_savestack);
2479 Safefree(PL_retstack);
2481 Safefree(PL_debname);
2482 Safefree(PL_debdelim);
2487 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2498 lex_start(PL_linestr);
2500 PL_subname = newSVpv("main",4);
2504 init_predump_symbols(void)
2510 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2511 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2512 GvMULTI_on(PL_stdingv);
2513 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2514 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2516 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2518 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2520 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2522 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2524 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2526 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2527 GvMULTI_on(othergv);
2528 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2529 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2531 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2533 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2536 PL_osname = savepv(OSNAME);
2540 init_postdump_symbols(register int argc, register char **argv, register char **env)
2547 argc--,argv++; /* skip name of script */
2548 if (PL_doswitches) {
2549 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2552 if (argv[0][1] == '-') {
2556 if (s = strchr(argv[0], '=')) {
2558 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2561 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2564 PL_toptarget = NEWSV(0,0);
2565 sv_upgrade(PL_toptarget, SVt_PVFM);
2566 sv_setpvn(PL_toptarget, "", 0);
2567 PL_bodytarget = NEWSV(0,0);
2568 sv_upgrade(PL_bodytarget, SVt_PVFM);
2569 sv_setpvn(PL_bodytarget, "", 0);
2570 PL_formtarget = PL_bodytarget;
2573 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2574 sv_setpv(GvSV(tmpgv),PL_origfilename);
2575 magicname("0", "0", 1);
2577 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2578 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2579 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2580 GvMULTI_on(PL_argvgv);
2581 (void)gv_AVadd(PL_argvgv);
2582 av_clear(GvAVn(PL_argvgv));
2583 for (; argc > 0; argc--,argv++) {
2584 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2587 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2589 GvMULTI_on(PL_envgv);
2590 hv = GvHVn(PL_envgv);
2591 hv_magic(hv, PL_envgv, 'E');
2592 #ifndef VMS /* VMS doesn't have environ array */
2593 /* Note that if the supplied env parameter is actually a copy
2594 of the global environ then it may now point to free'd memory
2595 if the environment has been modified since. To avoid this
2596 problem we treat env==NULL as meaning 'use the default'
2601 environ[0] = Nullch;
2602 for (; *env; env++) {
2603 if (!(s = strchr(*env,'=')))
2609 sv = newSVpv(s--,0);
2610 (void)hv_store(hv, *env, s - *env, sv, 0);
2612 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2613 /* Sins of the RTL. See note in my_setenv(). */
2614 (void)PerlEnv_putenv(savepv(*env));
2618 #ifdef DYNAMIC_ENV_FETCH
2619 HvNAME(hv) = savepv(ENV_HV_NAME);
2623 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2624 sv_setiv(GvSV(tmpgv), (IV)getpid());
2633 s = PerlEnv_getenv("PERL5LIB");
2637 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2639 /* Treat PERL5?LIB as a possible search list logical name -- the
2640 * "natural" VMS idiom for a Unix path string. We allow each
2641 * element to be a set of |-separated directories for compatibility.
2645 if (my_trnlnm("PERL5LIB",buf,0))
2646 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2648 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2652 /* Use the ~-expanded versions of APPLLIB (undocumented),
2653 ARCHLIB PRIVLIB SITEARCH and SITELIB
2656 incpush(APPLLIB_EXP, TRUE);
2660 incpush(ARCHLIB_EXP, FALSE);
2663 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2666 incpush(PRIVLIB_EXP, TRUE);
2668 incpush(PRIVLIB_EXP, FALSE);
2672 incpush(SITEARCH_EXP, FALSE);
2676 incpush(SITELIB_EXP, TRUE);
2678 incpush(SITELIB_EXP, FALSE);
2682 incpush(".", FALSE);
2686 # define PERLLIB_SEP ';'
2689 # define PERLLIB_SEP '|'
2691 # define PERLLIB_SEP ':'
2694 #ifndef PERLLIB_MANGLE
2695 # define PERLLIB_MANGLE(s,n) (s)
2699 incpush(char *p, int addsubdirs)
2701 SV *subdir = Nullsv;
2707 subdir = sv_newmortal();
2708 if (!PL_archpat_auto) {
2709 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2710 + sizeof("//auto"));
2711 New(55, PL_archpat_auto, len, char);
2712 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2714 for (len = sizeof(ARCHNAME) + 2;
2715 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2716 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2721 /* Break at all separators */
2723 SV *libdir = NEWSV(55,0);
2726 /* skip any consecutive separators */
2727 while ( *p == PERLLIB_SEP ) {
2728 /* Uncomment the next line for PATH semantics */
2729 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2733 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2734 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2739 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2740 p = Nullch; /* break out */
2744 * BEFORE pushing libdir onto @INC we may first push version- and
2745 * archname-specific sub-directories.
2748 struct stat tmpstatbuf;
2753 if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
2755 while (unix[len-1] == '/') len--; /* Cosmetic */
2756 sv_usepvn(libdir,unix,len);
2759 PerlIO_printf(PerlIO_stderr(),
2760 "Failed to unixify @INC element \"%s\"\n",
2761 SvPV(libdir,PL_na));
2763 /* .../archname/version if -d .../archname/version/auto */
2764 sv_setsv(subdir, libdir);
2765 sv_catpv(subdir, PL_archpat_auto);
2766 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2767 S_ISDIR(tmpstatbuf.st_mode))
2768 av_push(GvAVn(PL_incgv),
2769 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2771 /* .../archname if -d .../archname/auto */
2772 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2773 strlen(PL_patchlevel) + 1, "", 0);
2774 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2775 S_ISDIR(tmpstatbuf.st_mode))
2776 av_push(GvAVn(PL_incgv),
2777 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2780 /* finally push this lib directory on the end of @INC */
2781 av_push(GvAVn(PL_incgv), libdir);
2786 STATIC struct perl_thread *
2789 struct perl_thread *thr;
2792 Newz(53, thr, 1, struct perl_thread);
2793 PL_curcop = &PL_compiling;
2794 thr->cvcache = newHV();
2795 thr->threadsv = newAV();
2796 /* thr->threadsvp is set when find_threadsv is called */
2797 thr->specific = newAV();
2798 thr->errhv = newHV();
2799 thr->flags = THRf_R_JOINABLE;
2800 MUTEX_INIT(&thr->mutex);
2801 /* Handcraft thrsv similarly to mess_sv */
2802 New(53, PL_thrsv, 1, SV);
2803 Newz(53, xpv, 1, XPV);
2804 SvFLAGS(PL_thrsv) = SVt_PV;
2805 SvANY(PL_thrsv) = (void*)xpv;
2806 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2807 SvPVX(PL_thrsv) = (char*)thr;
2808 SvCUR_set(PL_thrsv, sizeof(thr));
2809 SvLEN_set(PL_thrsv, sizeof(thr));
2810 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2811 thr->oursv = PL_thrsv;
2812 PL_chopset = " \n-";
2814 MUTEX_LOCK(&PL_threads_mutex);
2819 MUTEX_UNLOCK(&PL_threads_mutex);
2821 #ifdef HAVE_THREAD_INTERN
2822 init_thread_intern(thr);
2825 #ifdef SET_THREAD_SELF
2826 SET_THREAD_SELF(thr);
2828 thr->self = pthread_self();
2829 #endif /* SET_THREAD_SELF */
2833 * These must come after the SET_THR because sv_setpvn does
2834 * SvTAINT and the taint fields require dTHR.
2836 PL_toptarget = NEWSV(0,0);
2837 sv_upgrade(PL_toptarget, SVt_PVFM);
2838 sv_setpvn(PL_toptarget, "", 0);
2839 PL_bodytarget = NEWSV(0,0);
2840 sv_upgrade(PL_bodytarget, SVt_PVFM);
2841 sv_setpvn(PL_bodytarget, "", 0);
2842 PL_formtarget = PL_bodytarget;
2843 thr->errsv = newSVpv("", 0);
2844 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2847 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2848 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2850 PL_reginterp_cnt = 0;
2854 #endif /* USE_THREADS */
2857 call_list(I32 oldscope, AV *paramList)
2860 line_t oldline = PL_curcop->cop_line;
2865 while (AvFILL(paramList) >= 0) {
2866 CV *cv = (CV*)av_shift(paramList);
2874 PUSHMARK(PL_stack_sp);
2875 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2876 (void)SvPV(atsv, len);
2879 PL_curcop = &PL_compiling;
2880 PL_curcop->cop_line = oldline;
2881 if (paramList == PL_beginav)
2882 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2884 sv_catpv(atsv, "END failed--cleanup aborted");
2885 while (PL_scopestack_ix > oldscope)
2887 croak("%s", SvPVX(atsv));
2895 /* my_exit() was called */
2896 while (PL_scopestack_ix > oldscope)
2899 PL_curstash = PL_defstash;
2901 call_list(oldscope, PL_endav);
2903 PL_curcop = &PL_compiling;
2904 PL_curcop->cop_line = oldline;
2905 if (PL_statusvalue) {
2906 if (paramList == PL_beginav)
2907 croak("BEGIN failed--compilation aborted");
2909 croak("END failed--cleanup aborted");
2914 if (!PL_restartop) {
2915 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2920 PL_curcop = &PL_compiling;
2921 PL_curcop->cop_line = oldline;
2933 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2934 thr, (unsigned long) status));
2943 STATUS_NATIVE_SET(status);
2950 my_failure_exit(void)
2953 if (vaxc$errno & 1) {
2954 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2955 STATUS_NATIVE_SET(44);
2958 if (!vaxc$errno && errno) /* unlikely */
2959 STATUS_NATIVE_SET(44);
2961 STATUS_NATIVE_SET(vaxc$errno);
2966 STATUS_POSIX_SET(errno);
2968 exitstatus = STATUS_POSIX >> 8;
2969 if (exitstatus & 255)
2970 STATUS_POSIX_SET(exitstatus);
2972 STATUS_POSIX_SET(255);
2982 register PERL_CONTEXT *cx;
2987 SvREFCNT_dec(PL_e_script);
2988 PL_e_script = Nullsv;
2991 POPSTACK_TO(PL_mainstack);
2992 if (cxstack_ix >= 0) {
2995 POPBLOCK(cx,PL_curpm);
3004 #endif /* PERL_OBJECT */
3010 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3012 read_e_script(int idx, SV *buf_sv, int maxlen)
3016 p = SvPVX(PL_e_script);
3017 nl = strchr(p, '\n');
3018 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3020 filter_del(read_e_script);
3023 sv_catpvn(buf_sv, p, nl-p);
3024 sv_chop(PL_e_script, nl);