3 * Copyright (c) 1987-1998 Larry Wall
5 * You may distribute under the terms of either the GNU General Public
6 * License or the Artistic License, as specified in the README file.
11 * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
16 #include "patchlevel.h"
18 /* XXX If this causes problems, set i_unistd=undef in the hint file. */
23 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
24 char *getenv _((char *)); /* Usually in <stdlib.h> */
40 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
47 static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
49 static void find_beginning _((void));
50 static void forbid_setid _((char *));
51 static void incpush _((char *, int));
52 static void init_interp _((void));
53 static void init_ids _((void));
54 static void init_debugger _((void));
55 static void init_lexer _((void));
56 static void init_main_stash _((void));
58 static struct perl_thread * init_main_thread _((void));
59 #endif /* USE_THREADS */
60 static void init_perllib _((void));
61 static void init_postdump_symbols _((int, char **, char **));
62 static void init_predump_symbols _((void));
63 static void my_exit_jump _((void)) __attribute__((noreturn));
64 static void nuke_stacks _((void));
65 static void open_script _((char *, bool, SV *, int *fd));
66 static void usage _((char *));
67 static void validate_suid _((char *, char*, int));
68 static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
72 CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
73 IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
75 CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
85 PerlInterpreter *sv_interp;
88 New(53, sv_interp, 1, PerlInterpreter);
91 #endif /* PERL_OBJECT */
95 CPerlObj::perl_construct(void)
97 perl_construct(register PerlInterpreter *sv_interp)
103 struct perl_thread *thr;
104 #endif /* FAKE_THREADS */
105 #endif /* USE_THREADS */
108 if (!(PL_curinterp = sv_interp))
114 Zero(sv_interp, 1, PerlInterpreter);
117 /* Init the real globals (and main thread)? */
122 #ifdef ALLOC_THREAD_KEY
125 if (pthread_key_create(&PL_thr_key, 0))
126 croak("panic: pthread_key_create");
128 MUTEX_INIT(&PL_sv_mutex);
130 * Safe to use basic SV functions from now on (though
131 * not things like mortals or tainting yet).
133 MUTEX_INIT(&PL_eval_mutex);
134 COND_INIT(&PL_eval_cond);
135 MUTEX_INIT(&PL_threads_mutex);
136 COND_INIT(&PL_nthreads_cond);
137 #ifdef EMULATE_ATOMIC_REFCOUNTS
138 MUTEX_INIT(&PL_svref_mutex);
139 #endif /* EMULATE_ATOMIC_REFCOUNTS */
141 thr = init_main_thread();
142 #endif /* USE_THREADS */
144 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
146 PL_linestr = NEWSV(65,79);
147 sv_upgrade(PL_linestr,SVt_PVIV);
149 if (!SvREADONLY(&PL_sv_undef)) {
150 /* set read-only and try to insure than we wont see REFCNT==0
153 SvREADONLY_on(&PL_sv_undef);
154 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
156 sv_setpv(&PL_sv_no,PL_No);
158 SvREADONLY_on(&PL_sv_no);
159 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
161 sv_setpv(&PL_sv_yes,PL_Yes);
163 SvREADONLY_on(&PL_sv_yes);
164 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
169 /* PL_sighandlerp = sighandler; */
171 PL_sighandlerp = sighandler;
173 PL_pidstatus = newHV();
177 * There is no way we can refer to them from Perl so close them to save
178 * space. The other alternative would be to provide STDAUX and STDPRN
181 (void)fclose(stdaux);
182 (void)fclose(stdprn);
186 PL_nrs = newSVpv("\n", 1);
187 PL_rs = SvREFCNT_inc(PL_nrs);
192 PL_perl_destruct_level = 1;
194 if (PL_perl_destruct_level > 0)
199 PL_lex_state = LEX_NOTPARSING;
201 PL_start_env.je_prev = NULL;
202 PL_start_env.je_ret = -1;
203 PL_start_env.je_mustcatch = TRUE;
204 PL_top_env = &PL_start_env;
207 SET_NUMERIC_STANDARD();
208 #if defined(SUBVERSION) && SUBVERSION > 0
209 sprintf(PL_patchlevel, "%7.5f", (double) 5
210 + ((double) PATCHLEVEL / (double) 1000)
211 + ((double) SUBVERSION / (double) 100000));
213 sprintf(PL_patchlevel, "%5.3f", (double) 5 +
214 ((double) PATCHLEVEL / (double) 1000));
217 #if defined(LOCAL_PATCH_COUNT)
218 PL_localpatches = local_patches; /* For possible -v */
221 PerlIO_init(); /* Hook to IO system */
223 PL_fdpid = newAV(); /* for remembering popen pids by fd */
224 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
227 New(51,PL_debname,128,char);
228 New(52,PL_debdelim,128,char);
236 CPerlObj::perl_destruct(void)
238 perl_destruct(register PerlInterpreter *sv_interp)
242 int destruct_level; /* 0=none, 1=full, 2=full with checks */
247 #endif /* USE_THREADS */
250 if (!(PL_curinterp = sv_interp))
256 /* Pass 1 on any remaining threads: detach joinables, join zombies */
258 MUTEX_LOCK(&PL_threads_mutex);
259 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
260 "perl_destruct: waiting for %d threads...\n",
262 for (t = thr->next; t != thr; t = t->next) {
263 MUTEX_LOCK(&t->mutex);
264 switch (ThrSTATE(t)) {
267 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
268 "perl_destruct: joining zombie %p\n", t));
269 ThrSETSTATE(t, THRf_DEAD);
270 MUTEX_UNLOCK(&t->mutex);
273 * The SvREFCNT_dec below may take a long time (e.g. av
274 * may contain an object scalar whose destructor gets
275 * called) so we have to unlock threads_mutex and start
278 MUTEX_UNLOCK(&PL_threads_mutex);
280 SvREFCNT_dec((SV*)av);
281 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
282 "perl_destruct: joined zombie %p OK\n", t));
284 case THRf_R_JOINABLE:
285 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
286 "perl_destruct: detaching thread %p\n", t));
287 ThrSETSTATE(t, THRf_R_DETACHED);
289 * We unlock threads_mutex and t->mutex in the opposite order
290 * from which we locked them just so that DETACH won't
291 * deadlock if it panics. It's only a breach of good style
292 * not a bug since they are unlocks not locks.
294 MUTEX_UNLOCK(&PL_threads_mutex);
296 MUTEX_UNLOCK(&t->mutex);
299 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
300 "perl_destruct: ignoring %p (state %u)\n",
302 MUTEX_UNLOCK(&t->mutex);
303 /* fall through and out */
306 /* We leave the above "Pass 1" loop with threads_mutex still locked */
308 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
309 while (PL_nthreads > 1)
311 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
312 "perl_destruct: final wait for %d threads\n",
314 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
316 /* At this point, we're the last thread */
317 MUTEX_UNLOCK(&PL_threads_mutex);
318 DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
319 MUTEX_DESTROY(&PL_threads_mutex);
320 COND_DESTROY(&PL_nthreads_cond);
321 #endif /* !defined(FAKE_THREADS) */
322 #endif /* USE_THREADS */
324 destruct_level = PL_perl_destruct_level;
328 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
330 if (destruct_level < i)
343 /* We must account for everything. */
345 /* Destroy the main CV and syntax tree */
347 PL_curpad = AvARRAY(PL_comppad);
348 op_free(PL_main_root);
349 PL_main_root = Nullop;
351 PL_curcop = &PL_compiling;
352 PL_main_start = Nullop;
353 SvREFCNT_dec(PL_main_cv);
356 if (PL_sv_objcount) {
358 * Try to destruct global references. We do this first so that the
359 * destructors and destructees still exist. Some sv's might remain.
360 * Non-referenced objects are on their own.
367 /* unhook hooks which will soon be, or use, destroyed data */
368 SvREFCNT_dec(PL_warnhook);
369 PL_warnhook = Nullsv;
370 SvREFCNT_dec(PL_diehook);
372 SvREFCNT_dec(PL_parsehook);
373 PL_parsehook = Nullsv;
375 /* call exit list functions */
376 while (PL_exitlistlen-- > 0)
377 PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
379 Safefree(PL_exitlist);
381 if (destruct_level == 0){
383 DEBUG_P(debprofdump());
385 /* The exit() function will do everything that needs doing. */
389 /* loosen bonds of global variables */
392 (void)PerlIO_close(PL_rsfp);
396 /* Filters for program text */
397 SvREFCNT_dec(PL_rsfp_filters);
398 PL_rsfp_filters = Nullav;
401 PL_preprocess = FALSE;
407 PL_doswitches = FALSE;
408 PL_dowarn = G_WARN_OFF;
409 PL_doextract = FALSE;
410 PL_sawampersand = FALSE; /* must save all match strings */
411 PL_sawstudy = FALSE; /* do fbm_instr on all strings */
415 Safefree(PL_inplace);
419 SvREFCNT_dec(PL_e_script);
420 PL_e_script = Nullsv;
423 /* magical thingies */
425 Safefree(PL_ofs); /* $, */
428 Safefree(PL_ors); /* $\ */
431 SvREFCNT_dec(PL_rs); /* $/ */
434 SvREFCNT_dec(PL_nrs); /* $/ helper */
437 PL_multiline = 0; /* $* */
439 SvREFCNT_dec(PL_statname);
440 PL_statname = Nullsv;
443 /* defgv, aka *_ should be taken care of elsewhere */
445 /* clean up after study() */
446 SvREFCNT_dec(PL_lastscream);
447 PL_lastscream = Nullsv;
448 Safefree(PL_screamfirst);
450 Safefree(PL_screamnext);
453 /* startup and shutdown function lists */
454 SvREFCNT_dec(PL_beginav);
455 SvREFCNT_dec(PL_endav);
456 SvREFCNT_dec(PL_initav);
461 /* shortcuts just get cleared */
468 PL_argvoutgv = Nullgv;
470 PL_last_in_gv = Nullgv;
473 /* reset so print() ends up where we expect */
476 /* Prepare to destruct main symbol table. */
483 if (destruct_level >= 2) {
484 if (PL_scopestack_ix != 0)
485 warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
486 (long)PL_scopestack_ix);
487 if (PL_savestack_ix != 0)
488 warn("Unbalanced saves: %ld more saves than restores\n",
489 (long)PL_savestack_ix);
490 if (PL_tmps_floor != -1)
491 warn("Unbalanced tmps: %ld more allocs than frees\n",
492 (long)PL_tmps_floor + 1);
493 if (cxstack_ix != -1)
494 warn("Unbalanced context: %ld more PUSHes than POPs\n",
495 (long)cxstack_ix + 1);
498 /* Now absolutely destruct everything, somehow or other, loops or no. */
500 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
501 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
502 last_sv_count = PL_sv_count;
505 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
506 SvFLAGS(PL_strtab) |= SVt_PVHV;
508 /* Destruct the global string table. */
510 /* Yell and reset the HeVAL() slots that are still holding refcounts,
511 * so that sv_free() won't fail on them.
519 max = HvMAX(PL_strtab);
520 array = HvARRAY(PL_strtab);
524 warn("Unbalanced string table refcount: (%d) for \"%s\"",
525 HeVAL(hent) - Nullsv, HeKEY(hent));
526 HeVAL(hent) = Nullsv;
536 SvREFCNT_dec(PL_strtab);
538 if (PL_sv_count != 0)
539 warn("Scalars leaked: %ld\n", (long)PL_sv_count);
543 /* No SVs have survived, need to clean out */
545 PL_pidstatus = Nullhv;
546 Safefree(PL_origfilename);
547 Safefree(PL_archpat_auto);
548 Safefree(PL_reg_start_tmp);
549 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
550 Safefree(PL_op_mask);
552 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
554 DEBUG_P(debprofdump());
556 MUTEX_DESTROY(&PL_sv_mutex);
557 MUTEX_DESTROY(&PL_eval_mutex);
558 COND_DESTROY(&PL_eval_cond);
560 /* As the penultimate thing, free the non-arena SV for thrsv */
561 Safefree(SvPVX(PL_thrsv));
562 Safefree(SvANY(PL_thrsv));
565 #endif /* USE_THREADS */
567 /* As the absolutely last thing, free the non-arena SV for mess() */
570 /* it could have accumulated taint magic */
571 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
574 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
575 moremagic = mg->mg_moremagic;
576 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
577 Safefree(mg->mg_ptr);
581 /* we know that type >= SVt_PV */
582 SvOOK_off(PL_mess_sv);
583 Safefree(SvPVX(PL_mess_sv));
584 Safefree(SvANY(PL_mess_sv));
585 Safefree(PL_mess_sv);
592 CPerlObj::perl_free(void)
594 perl_free(PerlInterpreter *sv_interp)
600 if (!(PL_curinterp = sv_interp))
608 CPerlObj::perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
610 perl_atexit(void (*fn) (void *), void *ptr)
613 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
614 PL_exitlist[PL_exitlistlen].fn = fn;
615 PL_exitlist[PL_exitlistlen].ptr = ptr;
621 CPerlObj::perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
623 perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
629 char *scriptname = NULL;
630 VOL bool dosearch = FALSE;
638 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
641 croak("suidperl is no longer needed since the kernel can now execute\n\
642 setuid perl scripts securely.\n");
647 if (!(PL_curinterp = sv_interp))
651 #if defined(NeXT) && defined(__DYNAMIC__)
652 _dyld_lookup_and_bind
653 ("__environ", (unsigned long *) &environ_pointer, NULL);
658 #ifndef VMS /* VMS doesn't have environ array */
659 PL_origenviron = environ;
664 /* Come here if running an undumped a.out. */
666 PL_origfilename = savepv(argv[0]);
667 PL_do_undump = FALSE;
668 cxstack_ix = -1; /* start label stack again */
670 init_postdump_symbols(argc,argv,env);
675 PL_curpad = AvARRAY(PL_comppad);
676 op_free(PL_main_root);
677 PL_main_root = Nullop;
679 PL_main_start = Nullop;
680 SvREFCNT_dec(PL_main_cv);
684 oldscope = PL_scopestack_ix;
685 PL_dowarn = G_WARN_OFF;
693 /* my_exit() was called */
694 while (PL_scopestack_ix > oldscope)
697 PL_curstash = PL_defstash;
699 call_list(oldscope, PL_endav);
701 return STATUS_NATIVE_EXPORT;
704 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
708 sv_setpvn(PL_linestr,"",0);
709 sv = newSVpv("",0); /* first used for -I flags */
713 for (argc--,argv++; argc > 0; argc--,argv++) {
714 if (argv[0][0] != '-' || !argv[0][1])
718 validarg = " PHOOEY ";
746 if (s = moreswitches(s))
756 if (PL_euid != PL_uid || PL_egid != PL_gid)
757 croak("No -e allowed in setuid scripts");
759 PL_e_script = newSVpv("",0);
760 filter_add(read_e_script, NULL);
763 sv_catpv(PL_e_script, s);
765 sv_catpv(PL_e_script, argv[1]);
769 croak("No code specified for -e");
770 sv_catpv(PL_e_script, "\n");
773 case 'I': /* -I handled both here and in moreswitches() */
775 if (!*++s && (s=argv[1]) != Nullch) {
778 while (s && isSPACE(*s))
782 for (e = s; *e && !isSPACE(*e); e++) ;
789 } /* XXX else croak? */
793 PL_preprocess = TRUE;
803 PL_preambleav = newAV();
804 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
806 PL_Sv = newSVpv("print myconfig();",0);
808 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
810 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
812 #if defined(DEBUGGING) || defined(NO_EMBED) || defined(MULTIPLICITY)
813 sv_catpv(PL_Sv,"\" Compile-time options:");
815 sv_catpv(PL_Sv," DEBUGGING");
818 sv_catpv(PL_Sv," NO_EMBED");
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,"\" \\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:");
1017 CPerlObj::perl_run(void)
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");
1748 #ifdef BINARY_BUILD_NOTICE
1749 BINARY_BUILD_NOTICE;
1752 Perl may be copied only under the terms of either the Artistic License or the\n\
1753 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1754 Complete documentation for Perl, including FAQ lists, should be found on\n\
1755 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1756 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1759 if (! (PL_dowarn & G_WARN_ALL_MASK))
1760 PL_dowarn |= G_WARN_ON;
1764 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1765 compiling.cop_warnings = WARN_ALL ;
1769 PL_dowarn = G_WARN_ALL_OFF;
1770 compiling.cop_warnings = WARN_NONE ;
1775 if (s[1] == '-') /* Additional switches on #! line. */
1780 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1786 #ifdef ALTERNATE_SHEBANG
1787 case 'S': /* OS/2 needs -S on "extproc" line. */
1795 croak("Can't emulate -%.1s on #! line",s);
1800 /* compliments of Tom Christiansen */
1802 /* unexec() can be found in the Gnu emacs distribution */
1803 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1814 prog = newSVpv(BIN_EXP, 0);
1815 sv_catpv(prog, "/perl");
1816 file = newSVpv(PL_origfilename, 0);
1817 sv_catpv(file, ".perldump");
1819 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1820 /* unexec prints msg to stderr in case of failure */
1821 PerlProc_exit(status);
1824 # include <lib$routines.h>
1825 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1827 ABORT(); /* for use with undump */
1832 /* initialize curinterp */
1837 #ifdef PERL_OBJECT /* XXX kludge */
1840 PL_chopset = " \n-"; \
1841 PL_copline = NOLINE; \
1842 PL_curcop = &PL_compiling;\
1843 PL_curcopdb = NULL; \
1846 PL_laststatval = -1; \
1847 PL_laststype = OP_STAT; \
1848 PL_maxscream = -1; \
1849 PL_maxsysfd = MAXSYSFD; \
1850 PL_statname = Nullsv; \
1851 PL_tmps_floor = -1; \
1853 PL_op_mask = NULL; \
1855 PL_laststatval = -1; \
1856 PL_laststype = OP_STAT; \
1857 PL_mess_sv = Nullsv; \
1858 PL_splitstr = " "; \
1859 PL_generation = 100; \
1860 PL_exitlist = NULL; \
1861 PL_exitlistlen = 0; \
1863 PL_in_clean_objs = FALSE; \
1864 PL_in_clean_all = FALSE; \
1865 PL_profiledata = NULL; \
1867 PL_rsfp_filters = Nullav; \
1871 # ifdef MULTIPLICITY
1872 # define PERLVAR(var,type)
1873 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1874 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1875 # include "intrpvar.h"
1876 # ifndef USE_THREADS
1877 # include "thrdvar.h"
1883 # define PERLVAR(var,type)
1884 # define PERLVARI(var,type,init) PL_##var = init;
1885 # define PERLVARIC(var,type,init) PL_##var = init;
1886 # include "intrpvar.h"
1887 # ifndef USE_THREADS
1888 # include "thrdvar.h"
1899 init_main_stash(void)
1904 /* Note that strtab is a rather special HV. Assumptions are made
1905 about not iterating on it, and not adding tie magic to it.
1906 It is properly deallocated in perl_destruct() */
1907 PL_strtab = newHV();
1908 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1909 hv_ksplit(PL_strtab, 512);
1911 PL_curstash = PL_defstash = newHV();
1912 PL_curstname = newSVpv("main",4);
1913 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1914 SvREFCNT_dec(GvHV(gv));
1915 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1917 HvNAME(PL_defstash) = savepv("main");
1918 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1919 GvMULTI_on(PL_incgv);
1920 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1921 GvMULTI_on(PL_hintgv);
1922 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1923 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1924 GvMULTI_on(PL_errgv);
1925 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1926 GvMULTI_on(PL_replgv);
1927 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1928 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1929 sv_setpvn(ERRSV, "", 0);
1930 PL_curstash = PL_defstash;
1931 PL_compiling.cop_stash = PL_defstash;
1932 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1933 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1934 /* We must init $/ before switches are processed. */
1935 sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
1939 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1947 PL_origfilename = savepv("-e");
1950 /* if find_script() returns, it returns a malloc()-ed value */
1951 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1953 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1954 char *s = scriptname + 8;
1955 *fdscript = atoi(s);
1959 scriptname = savepv(s + 1);
1960 Safefree(PL_origfilename);
1961 PL_origfilename = scriptname;
1966 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1967 if (strEQ(PL_origfilename,"-"))
1969 if (*fdscript >= 0) {
1970 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1971 #if defined(HAS_FCNTL) && defined(F_SETFD)
1973 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1976 else if (PL_preprocess) {
1977 char *cpp_cfg = CPPSTDIN;
1978 SV *cpp = newSVpv("",0);
1979 SV *cmd = NEWSV(0,0);
1981 if (strEQ(cpp_cfg, "cppstdin"))
1982 sv_catpvf(cpp, "%s/", BIN_EXP);
1983 sv_catpv(cpp, cpp_cfg);
1986 sv_catpv(sv,PRIVLIB_EXP);
1990 sed %s -e \"/^[^#]/b\" \
1991 -e \"/^#[ ]*include[ ]/b\" \
1992 -e \"/^#[ ]*define[ ]/b\" \
1993 -e \"/^#[ ]*if[ ]/b\" \
1994 -e \"/^#[ ]*ifdef[ ]/b\" \
1995 -e \"/^#[ ]*ifndef[ ]/b\" \
1996 -e \"/^#[ ]*else/b\" \
1997 -e \"/^#[ ]*elif[ ]/b\" \
1998 -e \"/^#[ ]*undef[ ]/b\" \
1999 -e \"/^#[ ]*endif/b\" \
2002 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2005 %s %s -e '/^[^#]/b' \
2006 -e '/^#[ ]*include[ ]/b' \
2007 -e '/^#[ ]*define[ ]/b' \
2008 -e '/^#[ ]*if[ ]/b' \
2009 -e '/^#[ ]*ifdef[ ]/b' \
2010 -e '/^#[ ]*ifndef[ ]/b' \
2011 -e '/^#[ ]*else/b' \
2012 -e '/^#[ ]*elif[ ]/b' \
2013 -e '/^#[ ]*undef[ ]/b' \
2014 -e '/^#[ ]*endif/b' \
2022 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2024 scriptname, cpp, sv, CPPMINUS);
2025 PL_doextract = FALSE;
2026 #ifdef IAMSUID /* actually, this is caught earlier */
2027 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2029 (void)seteuid(PL_uid); /* musn't stay setuid root */
2032 (void)setreuid((Uid_t)-1, PL_uid);
2034 #ifdef HAS_SETRESUID
2035 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2037 PerlProc_setuid(PL_uid);
2041 if (PerlProc_geteuid() != PL_uid)
2042 croak("Can't do seteuid!\n");
2044 #endif /* IAMSUID */
2045 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2049 else if (!*scriptname) {
2050 forbid_setid("program input from stdin");
2051 PL_rsfp = PerlIO_stdin();
2054 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2055 #if defined(HAS_FCNTL) && defined(F_SETFD)
2057 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2062 #ifndef IAMSUID /* in case script is not readable before setuid */
2064 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2065 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2068 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2069 croak("Can't do setuid\n");
2073 croak("Can't open perl script \"%s\": %s\n",
2074 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2079 validate_suid(char *validarg, char *scriptname, int fdscript)
2083 /* do we need to emulate setuid on scripts? */
2085 /* This code is for those BSD systems that have setuid #! scripts disabled
2086 * in the kernel because of a security problem. Merely defining DOSUID
2087 * in perl will not fix that problem, but if you have disabled setuid
2088 * scripts in the kernel, this will attempt to emulate setuid and setgid
2089 * on scripts that have those now-otherwise-useless bits set. The setuid
2090 * root version must be called suidperl or sperlN.NNN. If regular perl
2091 * discovers that it has opened a setuid script, it calls suidperl with
2092 * the same argv that it had. If suidperl finds that the script it has
2093 * just opened is NOT setuid root, it sets the effective uid back to the
2094 * uid. We don't just make perl setuid root because that loses the
2095 * effective uid we had before invoking perl, if it was different from the
2098 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2099 * be defined in suidperl only. suidperl must be setuid root. The
2100 * Configure script will set this up for you if you want it.
2107 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2108 croak("Can't stat script \"%s\"",PL_origfilename);
2109 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2113 #ifndef HAS_SETREUID
2114 /* On this access check to make sure the directories are readable,
2115 * there is actually a small window that the user could use to make
2116 * filename point to an accessible directory. So there is a faint
2117 * chance that someone could execute a setuid script down in a
2118 * non-accessible directory. I don't know what to do about that.
2119 * But I don't think it's too important. The manual lies when
2120 * it says access() is useful in setuid programs.
2122 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2123 croak("Permission denied");
2125 /* If we can swap euid and uid, then we can determine access rights
2126 * with a simple stat of the file, and then compare device and
2127 * inode to make sure we did stat() on the same file we opened.
2128 * Then we just have to make sure he or she can execute it.
2131 struct stat tmpstatbuf;
2135 setreuid(PL_euid,PL_uid) < 0
2138 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2141 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2142 croak("Can't swap uid and euid"); /* really paranoid */
2143 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2144 croak("Permission denied"); /* testing full pathname here */
2145 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2146 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2147 (void)PerlIO_close(PL_rsfp);
2148 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2149 PerlIO_printf(PL_rsfp,
2150 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2151 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2152 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2153 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2154 SvPVX(GvSV(PL_curcop->cop_filegv)),
2155 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2156 (void)PerlProc_pclose(PL_rsfp);
2158 croak("Permission denied\n");
2162 setreuid(PL_uid,PL_euid) < 0
2164 # if defined(HAS_SETRESUID)
2165 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2168 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2169 croak("Can't reswap uid and euid");
2170 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2171 croak("Permission denied\n");
2173 #endif /* HAS_SETREUID */
2174 #endif /* IAMSUID */
2176 if (!S_ISREG(PL_statbuf.st_mode))
2177 croak("Permission denied");
2178 if (PL_statbuf.st_mode & S_IWOTH)
2179 croak("Setuid/gid script is writable by world");
2180 PL_doswitches = FALSE; /* -s is insecure in suid */
2181 PL_curcop->cop_line++;
2182 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2183 strnNE(SvPV(PL_linestr,PL_na),"#!",2) ) /* required even on Sys V */
2184 croak("No #! line");
2185 s = SvPV(PL_linestr,PL_na)+2;
2187 while (!isSPACE(*s)) s++;
2188 for (s2 = s; (s2 > SvPV(PL_linestr,PL_na)+2 &&
2189 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2190 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2191 croak("Not a perl script");
2192 while (*s == ' ' || *s == '\t') s++;
2194 * #! arg must be what we saw above. They can invoke it by
2195 * mentioning suidperl explicitly, but they may not add any strange
2196 * arguments beyond what #! says if they do invoke suidperl that way.
2198 len = strlen(validarg);
2199 if (strEQ(validarg," PHOOEY ") ||
2200 strnNE(s,validarg,len) || !isSPACE(s[len]))
2201 croak("Args must match #! line");
2204 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2205 PL_euid == PL_statbuf.st_uid)
2207 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2208 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2209 #endif /* IAMSUID */
2211 if (PL_euid) { /* oops, we're not the setuid root perl */
2212 (void)PerlIO_close(PL_rsfp);
2215 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2217 croak("Can't do setuid\n");
2220 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2222 (void)setegid(PL_statbuf.st_gid);
2225 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2227 #ifdef HAS_SETRESGID
2228 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2230 PerlProc_setgid(PL_statbuf.st_gid);
2234 if (PerlProc_getegid() != PL_statbuf.st_gid)
2235 croak("Can't do setegid!\n");
2237 if (PL_statbuf.st_mode & S_ISUID) {
2238 if (PL_statbuf.st_uid != PL_euid)
2240 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2243 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2245 #ifdef HAS_SETRESUID
2246 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2248 PerlProc_setuid(PL_statbuf.st_uid);
2252 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2253 croak("Can't do seteuid!\n");
2255 else if (PL_uid) { /* oops, mustn't run as root */
2257 (void)seteuid((Uid_t)PL_uid);
2260 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2262 #ifdef HAS_SETRESUID
2263 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2265 PerlProc_setuid((Uid_t)PL_uid);
2269 if (PerlProc_geteuid() != PL_uid)
2270 croak("Can't do seteuid!\n");
2273 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2274 croak("Permission denied\n"); /* they can't do this */
2277 else if (PL_preprocess)
2278 croak("-P not allowed for setuid/setgid script\n");
2279 else if (fdscript >= 0)
2280 croak("fd script not allowed in suidperl\n");
2282 croak("Script is not setuid/setgid in suidperl\n");
2284 /* We absolutely must clear out any saved ids here, so we */
2285 /* exec the real perl, substituting fd script for scriptname. */
2286 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2287 PerlIO_rewind(PL_rsfp);
2288 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2289 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2290 if (!PL_origargv[which])
2291 croak("Permission denied");
2292 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2293 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2294 #if defined(HAS_FCNTL) && defined(F_SETFD)
2295 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2297 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2298 croak("Can't do setuid\n");
2299 #endif /* IAMSUID */
2301 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2302 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2304 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2305 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2307 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2310 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2311 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2312 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2313 /* not set-id, must be wrapped */
2319 find_beginning(void)
2321 register char *s, *s2;
2323 /* skip forward in input to the real script? */
2326 while (PL_doextract) {
2327 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2328 croak("No Perl script found in input\n");
2329 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2330 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2331 PL_doextract = FALSE;
2332 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2334 while (*s == ' ' || *s == '\t') s++;
2336 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2337 if (strnEQ(s2-4,"perl",4))
2339 while (s = moreswitches(s)) ;
2341 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2342 croak("Can't chdir to %s",PL_cddir);
2351 PL_uid = (int)PerlProc_getuid();
2352 PL_euid = (int)PerlProc_geteuid();
2353 PL_gid = (int)PerlProc_getgid();
2354 PL_egid = (int)PerlProc_getegid();
2356 PL_uid |= PL_gid << 16;
2357 PL_euid |= PL_egid << 16;
2359 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2363 forbid_setid(char *s)
2365 if (PL_euid != PL_uid)
2366 croak("No %s allowed while running setuid", s);
2367 if (PL_egid != PL_gid)
2368 croak("No %s allowed while running setgid", s);
2375 PL_curstash = PL_debstash;
2376 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2377 AvREAL_off(PL_dbargs);
2378 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2379 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2380 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2381 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2382 sv_setiv(PL_DBsingle, 0);
2383 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2384 sv_setiv(PL_DBtrace, 0);
2385 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2386 sv_setiv(PL_DBsignal, 0);
2387 PL_curstash = PL_defstash;
2390 #ifndef STRESS_REALLOC
2391 #define REASONABLE(size) (size)
2393 #define REASONABLE(size) (1) /* unreasonable */
2397 init_stacks(ARGSproto)
2399 /* start with 128-item stack and 8K cxstack */
2400 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2401 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2402 PL_curstackinfo->si_type = PERLSI_MAIN;
2403 PL_curstack = PL_curstackinfo->si_stack;
2404 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2406 PL_stack_base = AvARRAY(PL_curstack);
2407 PL_stack_sp = PL_stack_base;
2408 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2410 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2413 PL_tmps_max = REASONABLE(128);
2415 New(54,PL_markstack,REASONABLE(32),I32);
2416 PL_markstack_ptr = PL_markstack;
2417 PL_markstack_max = PL_markstack + REASONABLE(32);
2421 New(54,PL_scopestack,REASONABLE(32),I32);
2422 PL_scopestack_ix = 0;
2423 PL_scopestack_max = REASONABLE(32);
2425 New(54,PL_savestack,REASONABLE(128),ANY);
2426 PL_savestack_ix = 0;
2427 PL_savestack_max = REASONABLE(128);
2429 New(54,PL_retstack,REASONABLE(16),OP*);
2431 PL_retstack_max = REASONABLE(16);
2440 while (PL_curstackinfo->si_next)
2441 PL_curstackinfo = PL_curstackinfo->si_next;
2442 while (PL_curstackinfo) {
2443 PERL_SI *p = PL_curstackinfo->si_prev;
2444 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2445 Safefree(PL_curstackinfo->si_cxstack);
2446 Safefree(PL_curstackinfo);
2447 PL_curstackinfo = p;
2449 Safefree(PL_tmps_stack);
2450 Safefree(PL_markstack);
2451 Safefree(PL_scopestack);
2452 Safefree(PL_savestack);
2453 Safefree(PL_retstack);
2455 Safefree(PL_debname);
2456 Safefree(PL_debdelim);
2461 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2472 lex_start(PL_linestr);
2474 PL_subname = newSVpv("main",4);
2478 init_predump_symbols(void)
2484 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2485 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2486 GvMULTI_on(PL_stdingv);
2487 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2488 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2490 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2492 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2494 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2496 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2498 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2500 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2501 GvMULTI_on(othergv);
2502 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2503 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2505 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2507 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2510 PL_osname = savepv(OSNAME);
2514 init_postdump_symbols(register int argc, register char **argv, register char **env)
2521 argc--,argv++; /* skip name of script */
2522 if (PL_doswitches) {
2523 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2526 if (argv[0][1] == '-') {
2530 if (s = strchr(argv[0], '=')) {
2532 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2535 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2538 PL_toptarget = NEWSV(0,0);
2539 sv_upgrade(PL_toptarget, SVt_PVFM);
2540 sv_setpvn(PL_toptarget, "", 0);
2541 PL_bodytarget = NEWSV(0,0);
2542 sv_upgrade(PL_bodytarget, SVt_PVFM);
2543 sv_setpvn(PL_bodytarget, "", 0);
2544 PL_formtarget = PL_bodytarget;
2547 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2548 sv_setpv(GvSV(tmpgv),PL_origfilename);
2549 magicname("0", "0", 1);
2551 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2552 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2553 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2554 GvMULTI_on(PL_argvgv);
2555 (void)gv_AVadd(PL_argvgv);
2556 av_clear(GvAVn(PL_argvgv));
2557 for (; argc > 0; argc--,argv++) {
2558 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2561 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2563 GvMULTI_on(PL_envgv);
2564 hv = GvHVn(PL_envgv);
2565 hv_magic(hv, PL_envgv, 'E');
2566 #ifndef VMS /* VMS doesn't have environ array */
2567 /* Note that if the supplied env parameter is actually a copy
2568 of the global environ then it may now point to free'd memory
2569 if the environment has been modified since. To avoid this
2570 problem we treat env==NULL as meaning 'use the default'
2575 environ[0] = Nullch;
2576 for (; *env; env++) {
2577 if (!(s = strchr(*env,'=')))
2583 sv = newSVpv(s--,0);
2584 (void)hv_store(hv, *env, s - *env, sv, 0);
2586 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2587 /* Sins of the RTL. See note in my_setenv(). */
2588 (void)PerlEnv_putenv(savepv(*env));
2592 #ifdef DYNAMIC_ENV_FETCH
2593 HvNAME(hv) = savepv(ENV_HV_NAME);
2597 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2598 sv_setiv(GvSV(tmpgv), (IV)getpid());
2607 s = PerlEnv_getenv("PERL5LIB");
2611 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2613 /* Treat PERL5?LIB as a possible search list logical name -- the
2614 * "natural" VMS idiom for a Unix path string. We allow each
2615 * element to be a set of |-separated directories for compatibility.
2619 if (my_trnlnm("PERL5LIB",buf,0))
2620 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2622 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2626 /* Use the ~-expanded versions of APPLLIB (undocumented),
2627 ARCHLIB PRIVLIB SITEARCH and SITELIB
2630 incpush(APPLLIB_EXP, TRUE);
2634 incpush(ARCHLIB_EXP, FALSE);
2637 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2640 incpush(PRIVLIB_EXP, TRUE);
2642 incpush(PRIVLIB_EXP, FALSE);
2646 incpush(SITEARCH_EXP, FALSE);
2650 incpush(SITELIB_EXP, TRUE);
2652 incpush(SITELIB_EXP, FALSE);
2656 incpush(".", FALSE);
2660 # define PERLLIB_SEP ';'
2663 # define PERLLIB_SEP '|'
2665 # define PERLLIB_SEP ':'
2668 #ifndef PERLLIB_MANGLE
2669 # define PERLLIB_MANGLE(s,n) (s)
2673 incpush(char *p, int addsubdirs)
2675 SV *subdir = Nullsv;
2681 subdir = sv_newmortal();
2682 if (!PL_archpat_auto) {
2683 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2684 + sizeof("//auto"));
2685 New(55, PL_archpat_auto, len, char);
2686 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2688 for (len = sizeof(ARCHNAME) + 2;
2689 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2690 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2695 /* Break at all separators */
2697 SV *libdir = NEWSV(55,0);
2700 /* skip any consecutive separators */
2701 while ( *p == PERLLIB_SEP ) {
2702 /* Uncomment the next line for PATH semantics */
2703 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2707 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2708 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2713 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2714 p = Nullch; /* break out */
2718 * BEFORE pushing libdir onto @INC we may first push version- and
2719 * archname-specific sub-directories.
2722 struct stat tmpstatbuf;
2727 if ((unix = tounixspec_ts(SvPV(libdir,PL_na),Nullch)) != Nullch) {
2729 while (unix[len-1] == '/') len--; /* Cosmetic */
2730 sv_usepvn(libdir,unix,len);
2733 PerlIO_printf(PerlIO_stderr(),
2734 "Failed to unixify @INC element \"%s\"\n",
2735 SvPV(libdir,PL_na));
2737 /* .../archname/version if -d .../archname/version/auto */
2738 sv_setsv(subdir, libdir);
2739 sv_catpv(subdir, PL_archpat_auto);
2740 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2741 S_ISDIR(tmpstatbuf.st_mode))
2742 av_push(GvAVn(PL_incgv),
2743 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2745 /* .../archname if -d .../archname/auto */
2746 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2747 strlen(PL_patchlevel) + 1, "", 0);
2748 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2749 S_ISDIR(tmpstatbuf.st_mode))
2750 av_push(GvAVn(PL_incgv),
2751 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2754 /* finally push this lib directory on the end of @INC */
2755 av_push(GvAVn(PL_incgv), libdir);
2760 STATIC struct perl_thread *
2763 struct perl_thread *thr;
2766 Newz(53, thr, 1, struct perl_thread);
2767 PL_curcop = &PL_compiling;
2768 thr->cvcache = newHV();
2769 thr->threadsv = newAV();
2770 /* thr->threadsvp is set when find_threadsv is called */
2771 thr->specific = newAV();
2772 thr->errhv = newHV();
2773 thr->flags = THRf_R_JOINABLE;
2774 MUTEX_INIT(&thr->mutex);
2775 /* Handcraft thrsv similarly to mess_sv */
2776 New(53, PL_thrsv, 1, SV);
2777 Newz(53, xpv, 1, XPV);
2778 SvFLAGS(PL_thrsv) = SVt_PV;
2779 SvANY(PL_thrsv) = (void*)xpv;
2780 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2781 SvPVX(PL_thrsv) = (char*)thr;
2782 SvCUR_set(PL_thrsv, sizeof(thr));
2783 SvLEN_set(PL_thrsv, sizeof(thr));
2784 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2785 thr->oursv = PL_thrsv;
2786 PL_chopset = " \n-";
2788 MUTEX_LOCK(&PL_threads_mutex);
2793 MUTEX_UNLOCK(&PL_threads_mutex);
2795 #ifdef HAVE_THREAD_INTERN
2796 init_thread_intern(thr);
2799 #ifdef SET_THREAD_SELF
2800 SET_THREAD_SELF(thr);
2802 thr->self = pthread_self();
2803 #endif /* SET_THREAD_SELF */
2807 * These must come after the SET_THR because sv_setpvn does
2808 * SvTAINT and the taint fields require dTHR.
2810 PL_toptarget = NEWSV(0,0);
2811 sv_upgrade(PL_toptarget, SVt_PVFM);
2812 sv_setpvn(PL_toptarget, "", 0);
2813 PL_bodytarget = NEWSV(0,0);
2814 sv_upgrade(PL_bodytarget, SVt_PVFM);
2815 sv_setpvn(PL_bodytarget, "", 0);
2816 PL_formtarget = PL_bodytarget;
2817 thr->errsv = newSVpv("", 0);
2818 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2821 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2822 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2824 PL_reginterp_cnt = 0;
2828 #endif /* USE_THREADS */
2831 call_list(I32 oldscope, AV *paramList)
2834 line_t oldline = PL_curcop->cop_line;
2839 while (AvFILL(paramList) >= 0) {
2840 CV *cv = (CV*)av_shift(paramList);
2848 PUSHMARK(PL_stack_sp);
2849 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2850 (void)SvPV(atsv, len);
2853 PL_curcop = &PL_compiling;
2854 PL_curcop->cop_line = oldline;
2855 if (paramList == PL_beginav)
2856 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2858 sv_catpv(atsv, "END failed--cleanup aborted");
2859 while (PL_scopestack_ix > oldscope)
2861 croak("%s", SvPVX(atsv));
2869 /* my_exit() was called */
2870 while (PL_scopestack_ix > oldscope)
2873 PL_curstash = PL_defstash;
2875 call_list(oldscope, PL_endav);
2877 PL_curcop = &PL_compiling;
2878 PL_curcop->cop_line = oldline;
2879 if (PL_statusvalue) {
2880 if (paramList == PL_beginav)
2881 croak("BEGIN failed--compilation aborted");
2883 croak("END failed--cleanup aborted");
2888 if (!PL_restartop) {
2889 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2894 PL_curcop = &PL_compiling;
2895 PL_curcop->cop_line = oldline;
2907 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
2908 thr, (unsigned long) status));
2917 STATUS_NATIVE_SET(status);
2924 my_failure_exit(void)
2927 if (vaxc$errno & 1) {
2928 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
2929 STATUS_NATIVE_SET(44);
2932 if (!vaxc$errno && errno) /* unlikely */
2933 STATUS_NATIVE_SET(44);
2935 STATUS_NATIVE_SET(vaxc$errno);
2940 STATUS_POSIX_SET(errno);
2942 exitstatus = STATUS_POSIX >> 8;
2943 if (exitstatus & 255)
2944 STATUS_POSIX_SET(exitstatus);
2946 STATUS_POSIX_SET(255);
2956 register PERL_CONTEXT *cx;
2961 SvREFCNT_dec(PL_e_script);
2962 PL_e_script = Nullsv;
2965 POPSTACK_TO(PL_mainstack);
2966 if (cxstack_ix >= 0) {
2969 POPBLOCK(cx,PL_curpm);
2978 #endif /* PERL_OBJECT */
2984 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
2986 read_e_script(int idx, SV *buf_sv, int maxlen)
2990 p = SvPVX(PL_e_script);
2991 nl = strchr(p, '\n');
2992 nl = (nl) ? nl+1 : SvEND(PL_e_script);
2994 filter_del(read_e_script);
2997 sv_catpvn(buf_sv, p, nl-p);
2998 sv_chop(PL_e_script, nl);