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_dumpindent = 4; \
1853 PL_laststatval = -1; \
1854 PL_laststype = OP_STAT; \
1855 PL_maxscream = -1; \
1856 PL_maxsysfd = MAXSYSFD; \
1857 PL_statname = Nullsv; \
1858 PL_tmps_floor = -1; \
1860 PL_op_mask = NULL; \
1862 PL_laststatval = -1; \
1863 PL_laststype = OP_STAT; \
1864 PL_mess_sv = Nullsv; \
1865 PL_splitstr = " "; \
1866 PL_generation = 100; \
1867 PL_exitlist = NULL; \
1868 PL_exitlistlen = 0; \
1870 PL_in_clean_objs = FALSE; \
1871 PL_in_clean_all = FALSE; \
1872 PL_profiledata = NULL; \
1874 PL_rsfp_filters = Nullav; \
1879 # ifdef MULTIPLICITY
1880 # define PERLVAR(var,type)
1881 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1882 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1883 # include "intrpvar.h"
1884 # ifndef USE_THREADS
1885 # include "thrdvar.h"
1891 # define PERLVAR(var,type)
1892 # define PERLVARI(var,type,init) PL_##var = init;
1893 # define PERLVARIC(var,type,init) PL_##var = init;
1894 # include "intrpvar.h"
1895 # ifndef USE_THREADS
1896 # include "thrdvar.h"
1907 init_main_stash(void)
1912 /* Note that strtab is a rather special HV. Assumptions are made
1913 about not iterating on it, and not adding tie magic to it.
1914 It is properly deallocated in perl_destruct() */
1915 PL_strtab = newHV();
1917 MUTEX_INIT(&PL_strtab_mutex);
1919 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1920 hv_ksplit(PL_strtab, 512);
1922 PL_curstash = PL_defstash = newHV();
1923 PL_curstname = newSVpv("main",4);
1924 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1925 SvREFCNT_dec(GvHV(gv));
1926 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1928 HvNAME(PL_defstash) = savepv("main");
1929 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1930 GvMULTI_on(PL_incgv);
1931 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1932 GvMULTI_on(PL_hintgv);
1933 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1934 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1935 GvMULTI_on(PL_errgv);
1936 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1937 GvMULTI_on(PL_replgv);
1938 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1939 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1940 sv_setpvn(ERRSV, "", 0);
1941 PL_curstash = PL_defstash;
1942 PL_compiling.cop_stash = PL_defstash;
1943 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1944 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1945 /* We must init $/ before switches are processed. */
1946 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1950 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1958 PL_origfilename = savepv("-e");
1961 /* if find_script() returns, it returns a malloc()-ed value */
1962 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1964 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1965 char *s = scriptname + 8;
1966 *fdscript = atoi(s);
1970 scriptname = savepv(s + 1);
1971 Safefree(PL_origfilename);
1972 PL_origfilename = scriptname;
1977 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1978 if (strEQ(PL_origfilename,"-"))
1980 if (*fdscript >= 0) {
1981 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1982 #if defined(HAS_FCNTL) && defined(F_SETFD)
1984 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1987 else if (PL_preprocess) {
1988 char *cpp_cfg = CPPSTDIN;
1989 SV *cpp = newSVpv("",0);
1990 SV *cmd = NEWSV(0,0);
1992 if (strEQ(cpp_cfg, "cppstdin"))
1993 sv_catpvf(cpp, "%s/", BIN_EXP);
1994 sv_catpv(cpp, cpp_cfg);
1997 sv_catpv(sv,PRIVLIB_EXP);
2001 sed %s -e \"/^[^#]/b\" \
2002 -e \"/^#[ ]*include[ ]/b\" \
2003 -e \"/^#[ ]*define[ ]/b\" \
2004 -e \"/^#[ ]*if[ ]/b\" \
2005 -e \"/^#[ ]*ifdef[ ]/b\" \
2006 -e \"/^#[ ]*ifndef[ ]/b\" \
2007 -e \"/^#[ ]*else/b\" \
2008 -e \"/^#[ ]*elif[ ]/b\" \
2009 -e \"/^#[ ]*undef[ ]/b\" \
2010 -e \"/^#[ ]*endif/b\" \
2013 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2017 %s %s -e '/^[^#]/b' \
2018 -e '/^#[ ]*include[ ]/b' \
2019 -e '/^#[ ]*define[ ]/b' \
2020 -e '/^#[ ]*if[ ]/b' \
2021 -e '/^#[ ]*ifdef[ ]/b' \
2022 -e '/^#[ ]*ifndef[ ]/b' \
2023 -e '/^#[ ]*else/b' \
2024 -e '/^#[ ]*elif[ ]/b' \
2025 -e '/^#[ ]*undef[ ]/b' \
2026 -e '/^#[ ]*endif/b' \
2031 %s %s -e '/^[^#]/b' \
2032 -e '/^#[ ]*include[ ]/b' \
2033 -e '/^#[ ]*define[ ]/b' \
2034 -e '/^#[ ]*if[ ]/b' \
2035 -e '/^#[ ]*ifdef[ ]/b' \
2036 -e '/^#[ ]*ifndef[ ]/b' \
2037 -e '/^#[ ]*else/b' \
2038 -e '/^#[ ]*elif[ ]/b' \
2039 -e '/^#[ ]*undef[ ]/b' \
2040 -e '/^#[ ]*endif/b' \
2049 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2051 scriptname, cpp, sv, CPPMINUS);
2052 PL_doextract = FALSE;
2053 #ifdef IAMSUID /* actually, this is caught earlier */
2054 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2056 (void)seteuid(PL_uid); /* musn't stay setuid root */
2059 (void)setreuid((Uid_t)-1, PL_uid);
2061 #ifdef HAS_SETRESUID
2062 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2064 PerlProc_setuid(PL_uid);
2068 if (PerlProc_geteuid() != PL_uid)
2069 croak("Can't do seteuid!\n");
2071 #endif /* IAMSUID */
2072 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2076 else if (!*scriptname) {
2077 forbid_setid("program input from stdin");
2078 PL_rsfp = PerlIO_stdin();
2081 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2082 #if defined(HAS_FCNTL) && defined(F_SETFD)
2084 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2089 #ifndef IAMSUID /* in case script is not readable before setuid */
2091 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2092 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2095 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2096 croak("Can't do setuid\n");
2100 croak("Can't open perl script \"%s\": %s\n",
2101 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2106 validate_suid(char *validarg, char *scriptname, int fdscript)
2110 /* do we need to emulate setuid on scripts? */
2112 /* This code is for those BSD systems that have setuid #! scripts disabled
2113 * in the kernel because of a security problem. Merely defining DOSUID
2114 * in perl will not fix that problem, but if you have disabled setuid
2115 * scripts in the kernel, this will attempt to emulate setuid and setgid
2116 * on scripts that have those now-otherwise-useless bits set. The setuid
2117 * root version must be called suidperl or sperlN.NNN. If regular perl
2118 * discovers that it has opened a setuid script, it calls suidperl with
2119 * the same argv that it had. If suidperl finds that the script it has
2120 * just opened is NOT setuid root, it sets the effective uid back to the
2121 * uid. We don't just make perl setuid root because that loses the
2122 * effective uid we had before invoking perl, if it was different from the
2125 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2126 * be defined in suidperl only. suidperl must be setuid root. The
2127 * Configure script will set this up for you if you want it.
2134 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2135 croak("Can't stat script \"%s\"",PL_origfilename);
2136 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2140 #ifndef HAS_SETREUID
2141 /* On this access check to make sure the directories are readable,
2142 * there is actually a small window that the user could use to make
2143 * filename point to an accessible directory. So there is a faint
2144 * chance that someone could execute a setuid script down in a
2145 * non-accessible directory. I don't know what to do about that.
2146 * But I don't think it's too important. The manual lies when
2147 * it says access() is useful in setuid programs.
2149 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2150 croak("Permission denied");
2152 /* If we can swap euid and uid, then we can determine access rights
2153 * with a simple stat of the file, and then compare device and
2154 * inode to make sure we did stat() on the same file we opened.
2155 * Then we just have to make sure he or she can execute it.
2158 struct stat tmpstatbuf;
2162 setreuid(PL_euid,PL_uid) < 0
2165 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2168 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2169 croak("Can't swap uid and euid"); /* really paranoid */
2170 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2171 croak("Permission denied"); /* testing full pathname here */
2172 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2173 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2174 (void)PerlIO_close(PL_rsfp);
2175 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2176 PerlIO_printf(PL_rsfp,
2177 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2178 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2179 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2180 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2181 SvPVX(GvSV(PL_curcop->cop_filegv)),
2182 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2183 (void)PerlProc_pclose(PL_rsfp);
2185 croak("Permission denied\n");
2189 setreuid(PL_uid,PL_euid) < 0
2191 # if defined(HAS_SETRESUID)
2192 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2195 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2196 croak("Can't reswap uid and euid");
2197 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2198 croak("Permission denied\n");
2200 #endif /* HAS_SETREUID */
2201 #endif /* IAMSUID */
2203 if (!S_ISREG(PL_statbuf.st_mode))
2204 croak("Permission denied");
2205 if (PL_statbuf.st_mode & S_IWOTH)
2206 croak("Setuid/gid script is writable by world");
2207 PL_doswitches = FALSE; /* -s is insecure in suid */
2208 PL_curcop->cop_line++;
2209 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2210 strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
2211 croak("No #! line");
2212 s = SvPV(PL_linestr,PL_na)+2;
2214 while (!isSPACE(*s)) s++;
2215 for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
2216 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2217 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2218 croak("Not a perl script");
2219 while (*s == ' ' || *s == '\t') s++;
2221 * #! arg must be what we saw above. They can invoke it by
2222 * mentioning suidperl explicitly, but they may not add any strange
2223 * arguments beyond what #! says if they do invoke suidperl that way.
2225 len = strlen(validarg);
2226 if (strEQ(validarg," PHOOEY ") ||
2227 strnNE(s,validarg,len) || !isSPACE(s[len]))
2228 croak("Args must match #! line");
2231 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2232 PL_euid == PL_statbuf.st_uid)
2234 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2235 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2236 #endif /* IAMSUID */
2238 if (PL_euid) { /* oops, we're not the setuid root perl */
2239 (void)PerlIO_close(PL_rsfp);
2242 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2244 croak("Can't do setuid\n");
2247 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2249 (void)setegid(PL_statbuf.st_gid);
2252 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2254 #ifdef HAS_SETRESGID
2255 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2257 PerlProc_setgid(PL_statbuf.st_gid);
2261 if (PerlProc_getegid() != PL_statbuf.st_gid)
2262 croak("Can't do setegid!\n");
2264 if (PL_statbuf.st_mode & S_ISUID) {
2265 if (PL_statbuf.st_uid != PL_euid)
2267 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2270 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2272 #ifdef HAS_SETRESUID
2273 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2275 PerlProc_setuid(PL_statbuf.st_uid);
2279 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2280 croak("Can't do seteuid!\n");
2282 else if (PL_uid) { /* oops, mustn't run as root */
2284 (void)seteuid((Uid_t)PL_uid);
2287 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2289 #ifdef HAS_SETRESUID
2290 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2292 PerlProc_setuid((Uid_t)PL_uid);
2296 if (PerlProc_geteuid() != PL_uid)
2297 croak("Can't do seteuid!\n");
2300 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2301 croak("Permission denied\n"); /* they can't do this */
2304 else if (PL_preprocess)
2305 croak("-P not allowed for setuid/setgid script\n");
2306 else if (fdscript >= 0)
2307 croak("fd script not allowed in suidperl\n");
2309 croak("Script is not setuid/setgid in suidperl\n");
2311 /* We absolutely must clear out any saved ids here, so we */
2312 /* exec the real perl, substituting fd script for scriptname. */
2313 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2314 PerlIO_rewind(PL_rsfp);
2315 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2316 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2317 if (!PL_origargv[which])
2318 croak("Permission denied");
2319 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2320 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2321 #if defined(HAS_FCNTL) && defined(F_SETFD)
2322 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2324 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2325 croak("Can't do setuid\n");
2326 #endif /* IAMSUID */
2328 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2329 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2331 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2332 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2334 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2337 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2338 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2339 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2340 /* not set-id, must be wrapped */
2346 find_beginning(void)
2348 register char *s, *s2;
2350 /* skip forward in input to the real script? */
2353 while (PL_doextract) {
2354 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2355 croak("No Perl script found in input\n");
2356 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2357 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2358 PL_doextract = FALSE;
2359 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2361 while (*s == ' ' || *s == '\t') s++;
2363 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2364 if (strnEQ(s2-4,"perl",4))
2366 while (s = moreswitches(s)) ;
2368 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2369 croak("Can't chdir to %s",PL_cddir);
2378 PL_uid = (int)PerlProc_getuid();
2379 PL_euid = (int)PerlProc_geteuid();
2380 PL_gid = (int)PerlProc_getgid();
2381 PL_egid = (int)PerlProc_getegid();
2383 PL_uid |= PL_gid << 16;
2384 PL_euid |= PL_egid << 16;
2386 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2390 forbid_setid(char *s)
2392 if (PL_euid != PL_uid)
2393 croak("No %s allowed while running setuid", s);
2394 if (PL_egid != PL_gid)
2395 croak("No %s allowed while running setgid", s);
2402 PL_curstash = PL_debstash;
2403 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2404 AvREAL_off(PL_dbargs);
2405 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2406 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2407 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2408 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2409 sv_setiv(PL_DBsingle, 0);
2410 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2411 sv_setiv(PL_DBtrace, 0);
2412 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2413 sv_setiv(PL_DBsignal, 0);
2414 PL_curstash = PL_defstash;
2417 #ifndef STRESS_REALLOC
2418 #define REASONABLE(size) (size)
2420 #define REASONABLE(size) (1) /* unreasonable */
2424 init_stacks(ARGSproto)
2426 /* start with 128-item stack and 8K cxstack */
2427 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2428 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2429 PL_curstackinfo->si_type = PERLSI_MAIN;
2430 PL_curstack = PL_curstackinfo->si_stack;
2431 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2433 PL_stack_base = AvARRAY(PL_curstack);
2434 PL_stack_sp = PL_stack_base;
2435 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2437 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2440 PL_tmps_max = REASONABLE(128);
2442 New(54,PL_markstack,REASONABLE(32),I32);
2443 PL_markstack_ptr = PL_markstack;
2444 PL_markstack_max = PL_markstack + REASONABLE(32);
2448 New(54,PL_scopestack,REASONABLE(32),I32);
2449 PL_scopestack_ix = 0;
2450 PL_scopestack_max = REASONABLE(32);
2452 New(54,PL_savestack,REASONABLE(128),ANY);
2453 PL_savestack_ix = 0;
2454 PL_savestack_max = REASONABLE(128);
2456 New(54,PL_retstack,REASONABLE(16),OP*);
2458 PL_retstack_max = REASONABLE(16);
2467 while (PL_curstackinfo->si_next)
2468 PL_curstackinfo = PL_curstackinfo->si_next;
2469 while (PL_curstackinfo) {
2470 PERL_SI *p = PL_curstackinfo->si_prev;
2471 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2472 Safefree(PL_curstackinfo->si_cxstack);
2473 Safefree(PL_curstackinfo);
2474 PL_curstackinfo = p;
2476 Safefree(PL_tmps_stack);
2477 Safefree(PL_markstack);
2478 Safefree(PL_scopestack);
2479 Safefree(PL_savestack);
2480 Safefree(PL_retstack);
2482 Safefree(PL_debname);
2483 Safefree(PL_debdelim);
2488 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2499 lex_start(PL_linestr);
2501 PL_subname = newSVpv("main",4);
2505 init_predump_symbols(void)
2511 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2512 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2513 GvMULTI_on(PL_stdingv);
2514 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2515 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2517 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2519 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2521 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2523 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2525 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2527 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2528 GvMULTI_on(othergv);
2529 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2530 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2532 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2534 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2537 PL_osname = savepv(OSNAME);
2541 init_postdump_symbols(register int argc, register char **argv, register char **env)
2548 argc--,argv++; /* skip name of script */
2549 if (PL_doswitches) {
2550 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2553 if (argv[0][1] == '-') {
2557 if (s = strchr(argv[0], '=')) {
2559 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2562 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2565 PL_toptarget = NEWSV(0,0);
2566 sv_upgrade(PL_toptarget, SVt_PVFM);
2567 sv_setpvn(PL_toptarget, "", 0);
2568 PL_bodytarget = NEWSV(0,0);
2569 sv_upgrade(PL_bodytarget, SVt_PVFM);
2570 sv_setpvn(PL_bodytarget, "", 0);
2571 PL_formtarget = PL_bodytarget;
2574 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2575 sv_setpv(GvSV(tmpgv),PL_origfilename);
2576 magicname("0", "0", 1);
2578 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2579 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2580 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2581 GvMULTI_on(PL_argvgv);
2582 (void)gv_AVadd(PL_argvgv);
2583 av_clear(GvAVn(PL_argvgv));
2584 for (; argc > 0; argc--,argv++) {
2585 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2588 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2590 GvMULTI_on(PL_envgv);
2591 hv = GvHVn(PL_envgv);
2592 hv_magic(hv, PL_envgv, 'E');
2593 #ifndef VMS /* VMS doesn't have environ array */
2594 /* Note that if the supplied env parameter is actually a copy
2595 of the global environ then it may now point to free'd memory
2596 if the environment has been modified since. To avoid this
2597 problem we treat env==NULL as meaning 'use the default'
2602 environ[0] = Nullch;
2603 for (; *env; env++) {
2604 if (!(s = strchr(*env,'=')))
2610 sv = newSVpv(s--,0);
2611 (void)hv_store(hv, *env, s - *env, sv, 0);
2613 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2614 /* Sins of the RTL. See note in my_setenv(). */
2615 (void)PerlEnv_putenv(savepv(*env));
2619 #ifdef DYNAMIC_ENV_FETCH
2620 HvNAME(hv) = savepv(ENV_HV_NAME);
2624 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2625 sv_setiv(GvSV(tmpgv), (IV)getpid());
2634 s = PerlEnv_getenv("PERL5LIB");
2638 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2640 /* Treat PERL5?LIB as a possible search list logical name -- the
2641 * "natural" VMS idiom for a Unix path string. We allow each
2642 * element to be a set of |-separated directories for compatibility.
2646 if (my_trnlnm("PERL5LIB",buf,0))
2647 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2649 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2653 /* Use the ~-expanded versions of APPLLIB (undocumented),
2654 ARCHLIB PRIVLIB SITEARCH and SITELIB
2657 incpush(APPLLIB_EXP, TRUE);
2661 incpush(ARCHLIB_EXP, FALSE);
2664 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2667 incpush(PRIVLIB_EXP, TRUE);
2669 incpush(PRIVLIB_EXP, FALSE);
2673 incpush(SITEARCH_EXP, FALSE);
2677 incpush(SITELIB_EXP, TRUE);
2679 incpush(SITELIB_EXP, FALSE);
2683 incpush(".", FALSE);
2687 # define PERLLIB_SEP ';'
2690 # define PERLLIB_SEP '|'
2692 # define PERLLIB_SEP ':'
2695 #ifndef PERLLIB_MANGLE
2696 # define PERLLIB_MANGLE(s,n) (s)
2700 incpush(char *p, int addsubdirs)
2702 SV *subdir = Nullsv;
2708 subdir = sv_newmortal();
2709 if (!PL_archpat_auto) {
2710 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2711 + sizeof("//auto"));
2712 New(55, PL_archpat_auto, len, char);
2713 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2715 for (len = sizeof(ARCHNAME) + 2;
2716 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2717 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2722 /* Break at all separators */
2724 SV *libdir = NEWSV(55,0);
2727 /* skip any consecutive separators */
2728 while ( *p == PERLLIB_SEP ) {
2729 /* Uncomment the next line for PATH semantics */
2730 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2734 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2735 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2740 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2741 p = Nullch; /* break out */
2745 * BEFORE pushing libdir onto @INC we may first push version- and
2746 * archname-specific sub-directories.
2749 struct stat tmpstatbuf;
2754 if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
2756 while (unix[len-1] == '/') len--; /* Cosmetic */
2757 sv_usepvn(libdir,unix,len);
2760 PerlIO_printf(PerlIO_stderr(),
2761 "Failed to unixify @INC element \"%s\"\n",
2762 SvPV(libdir,PL_na));
2764 /* .../archname/version if -d .../archname/version/auto */
2765 sv_setsv(subdir, libdir);
2766 sv_catpv(subdir, PL_archpat_auto);
2767 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2768 S_ISDIR(tmpstatbuf.st_mode))
2769 av_push(GvAVn(PL_incgv),
2770 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2772 /* .../archname if -d .../archname/auto */
2773 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2774 strlen(PL_patchlevel) + 1, "", 0);
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"));
2781 /* finally push this lib directory on the end of @INC */
2782 av_push(GvAVn(PL_incgv), libdir);
2787 STATIC struct perl_thread *
2790 struct perl_thread *thr;
2793 Newz(53, thr, 1, struct perl_thread);
2794 PL_curcop = &PL_compiling;
2795 thr->cvcache = newHV();
2796 thr->threadsv = newAV();
2797 /* thr->threadsvp is set when find_threadsv is called */
2798 thr->specific = newAV();
2799 thr->errhv = newHV();
2800 thr->flags = THRf_R_JOINABLE;
2801 MUTEX_INIT(&thr->mutex);
2802 /* Handcraft thrsv similarly to mess_sv */
2803 New(53, PL_thrsv, 1, SV);
2804 Newz(53, xpv, 1, XPV);
2805 SvFLAGS(PL_thrsv) = SVt_PV;
2806 SvANY(PL_thrsv) = (void*)xpv;
2807 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2808 SvPVX(PL_thrsv) = (char*)thr;
2809 SvCUR_set(PL_thrsv, sizeof(thr));
2810 SvLEN_set(PL_thrsv, sizeof(thr));
2811 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2812 thr->oursv = PL_thrsv;
2813 PL_chopset = " \n-";
2816 MUTEX_LOCK(&PL_threads_mutex);
2821 MUTEX_UNLOCK(&PL_threads_mutex);
2823 #ifdef HAVE_THREAD_INTERN
2824 init_thread_intern(thr);
2827 #ifdef SET_THREAD_SELF
2828 SET_THREAD_SELF(thr);
2830 thr->self = pthread_self();
2831 #endif /* SET_THREAD_SELF */
2835 * These must come after the SET_THR because sv_setpvn does
2836 * SvTAINT and the taint fields require dTHR.
2838 PL_toptarget = NEWSV(0,0);
2839 sv_upgrade(PL_toptarget, SVt_PVFM);
2840 sv_setpvn(PL_toptarget, "", 0);
2841 PL_bodytarget = NEWSV(0,0);
2842 sv_upgrade(PL_bodytarget, SVt_PVFM);
2843 sv_setpvn(PL_bodytarget, "", 0);
2844 PL_formtarget = PL_bodytarget;
2845 thr->errsv = newSVpv("", 0);
2846 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2849 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2850 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2852 PL_reginterp_cnt = 0;
2856 #endif /* USE_THREADS */
2859 call_list(I32 oldscope, AV *paramList)
2862 line_t oldline = PL_curcop->cop_line;
2867 while (AvFILL(paramList) >= 0) {
2868 CV *cv = (CV*)av_shift(paramList);
2876 PUSHMARK(PL_stack_sp);
2877 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2878 (void)SvPV(atsv, len);
2881 PL_curcop = &PL_compiling;
2882 PL_curcop->cop_line = oldline;
2883 if (paramList == PL_beginav)
2884 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2886 sv_catpv(atsv, "END failed--cleanup aborted");
2887 while (PL_scopestack_ix > oldscope)
2889 croak("%s", SvPVX(atsv));
2897 /* my_exit() was called */
2898 while (PL_scopestack_ix > oldscope)
2901 PL_curstash = PL_defstash;
2903 call_list(oldscope, PL_endav);
2905 PL_curcop = &PL_compiling;
2906 PL_curcop->cop_line = oldline;
2907 if (PL_statusvalue) {
2908 if (paramList == PL_beginav)
2909 croak("BEGIN failed--compilation aborted");
2911 croak("END failed--cleanup aborted");
2916 if (!PL_restartop) {
2917 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2922 PL_curcop = &PL_compiling;
2923 PL_curcop->cop_line = oldline;
2935 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2936 thr, (unsigned long) status));
2945 STATUS_NATIVE_SET(status);
2952 my_failure_exit(void)
2955 if (vaxc$errno & 1) {
2956 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2957 STATUS_NATIVE_SET(44);
2960 if (!vaxc$errno && errno) /* unlikely */
2961 STATUS_NATIVE_SET(44);
2963 STATUS_NATIVE_SET(vaxc$errno);
2968 STATUS_POSIX_SET(errno);
2970 exitstatus = STATUS_POSIX >> 8;
2971 if (exitstatus & 255)
2972 STATUS_POSIX_SET(exitstatus);
2974 STATUS_POSIX_SET(255);
2984 register PERL_CONTEXT *cx;
2989 SvREFCNT_dec(PL_e_script);
2990 PL_e_script = Nullsv;
2993 POPSTACK_TO(PL_mainstack);
2994 if (cxstack_ix >= 0) {
2997 POPBLOCK(cx,PL_curpm);
3006 #endif /* PERL_OBJECT */
3012 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3014 read_e_script(int idx, SV *buf_sv, int maxlen)
3018 p = SvPVX(PL_e_script);
3019 nl = strchr(p, '\n');
3020 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3022 filter_del(read_e_script);
3025 sv_catpvn(buf_sv, p, nl-p);
3026 sv_chop(PL_e_script, nl);