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 *));
68 static int fd_on_nosuid_fs _((int));
70 static void validate_suid _((char *, char*, int));
71 static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
75 CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
76 IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
78 CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
88 PerlInterpreter *sv_interp;
91 New(53, sv_interp, 1, PerlInterpreter);
94 #endif /* PERL_OBJECT */
100 perl_construct(register PerlInterpreter *sv_interp)
106 struct perl_thread *thr;
107 #endif /* FAKE_THREADS */
108 #endif /* USE_THREADS */
111 if (!(PL_curinterp = sv_interp))
117 Zero(sv_interp, 1, PerlInterpreter);
120 /* Init the real globals (and main thread)? */
125 #ifdef ALLOC_THREAD_KEY
128 if (pthread_key_create(&PL_thr_key, 0))
129 croak("panic: pthread_key_create");
131 MUTEX_INIT(&PL_sv_mutex);
133 * Safe to use basic SV functions from now on (though
134 * not things like mortals or tainting yet).
136 MUTEX_INIT(&PL_eval_mutex);
137 COND_INIT(&PL_eval_cond);
138 MUTEX_INIT(&PL_threads_mutex);
139 COND_INIT(&PL_nthreads_cond);
140 #ifdef EMULATE_ATOMIC_REFCOUNTS
141 MUTEX_INIT(&PL_svref_mutex);
142 #endif /* EMULATE_ATOMIC_REFCOUNTS */
144 MUTEX_INIT(&PL_cred_mutex);
146 thr = init_main_thread();
147 #endif /* USE_THREADS */
149 PL_curcop = &PL_compiling; /* needed by ckWARN, right away */
151 PL_linestr = NEWSV(65,79);
152 sv_upgrade(PL_linestr,SVt_PVIV);
154 if (!SvREADONLY(&PL_sv_undef)) {
155 /* set read-only and try to insure than we wont see REFCNT==0
158 SvREADONLY_on(&PL_sv_undef);
159 SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
161 sv_setpv(&PL_sv_no,PL_No);
163 SvREADONLY_on(&PL_sv_no);
164 SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
166 sv_setpv(&PL_sv_yes,PL_Yes);
168 SvREADONLY_on(&PL_sv_yes);
169 SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
174 /* PL_sighandlerp = sighandler; */
176 PL_sighandlerp = sighandler;
178 PL_pidstatus = newHV();
182 * There is no way we can refer to them from Perl so close them to save
183 * space. The other alternative would be to provide STDAUX and STDPRN
186 (void)fclose(stdaux);
187 (void)fclose(stdprn);
191 PL_nrs = newSVpv("\n", 1);
192 PL_rs = SvREFCNT_inc(PL_nrs);
197 PL_perl_destruct_level = 1;
199 if (PL_perl_destruct_level > 0)
204 PL_lex_state = LEX_NOTPARSING;
206 PL_start_env.je_prev = NULL;
207 PL_start_env.je_ret = -1;
208 PL_start_env.je_mustcatch = TRUE;
209 PL_top_env = &PL_start_env;
212 SET_NUMERIC_STANDARD();
213 #if defined(SUBVERSION) && SUBVERSION > 0
214 sprintf(PL_patchlevel, "%7.5f", (double) 5
215 + ((double) PATCHLEVEL / (double) 1000)
216 + ((double) SUBVERSION / (double) 100000));
218 sprintf(PL_patchlevel, "%5.3f", (double) 5 +
219 ((double) PATCHLEVEL / (double) 1000));
222 #if defined(LOCAL_PATCH_COUNT)
223 PL_localpatches = local_patches; /* For possible -v */
226 PerlIO_init(); /* Hook to IO system */
228 PL_fdpid = newAV(); /* for remembering popen pids by fd */
229 PL_modglobal = newHV(); /* pointers to per-interpreter module globals */
232 New(51,PL_debname,128,char);
233 New(52,PL_debdelim,128,char);
243 perl_destruct(register PerlInterpreter *sv_interp)
247 int destruct_level; /* 0=none, 1=full, 2=full with checks */
252 #endif /* USE_THREADS */
255 if (!(PL_curinterp = sv_interp))
261 /* Pass 1 on any remaining threads: detach joinables, join zombies */
263 MUTEX_LOCK(&PL_threads_mutex);
264 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
265 "perl_destruct: waiting for %d threads...\n",
267 for (t = thr->next; t != thr; t = t->next) {
268 MUTEX_LOCK(&t->mutex);
269 switch (ThrSTATE(t)) {
272 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
273 "perl_destruct: joining zombie %p\n", t));
274 ThrSETSTATE(t, THRf_DEAD);
275 MUTEX_UNLOCK(&t->mutex);
278 * The SvREFCNT_dec below may take a long time (e.g. av
279 * may contain an object scalar whose destructor gets
280 * called) so we have to unlock threads_mutex and start
283 MUTEX_UNLOCK(&PL_threads_mutex);
285 SvREFCNT_dec((SV*)av);
286 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
287 "perl_destruct: joined zombie %p OK\n", t));
289 case THRf_R_JOINABLE:
290 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
291 "perl_destruct: detaching thread %p\n", t));
292 ThrSETSTATE(t, THRf_R_DETACHED);
294 * We unlock threads_mutex and t->mutex in the opposite order
295 * from which we locked them just so that DETACH won't
296 * deadlock if it panics. It's only a breach of good style
297 * not a bug since they are unlocks not locks.
299 MUTEX_UNLOCK(&PL_threads_mutex);
301 MUTEX_UNLOCK(&t->mutex);
304 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
305 "perl_destruct: ignoring %p (state %u)\n",
307 MUTEX_UNLOCK(&t->mutex);
308 /* fall through and out */
311 /* We leave the above "Pass 1" loop with threads_mutex still locked */
313 /* Pass 2 on remaining threads: wait for the thread count to drop to one */
314 while (PL_nthreads > 1)
316 DEBUG_S(PerlIO_printf(PerlIO_stderr(),
317 "perl_destruct: final wait for %d threads\n",
319 COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
321 /* At this point, we're the last thread */
322 MUTEX_UNLOCK(&PL_threads_mutex);
323 DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
324 MUTEX_DESTROY(&PL_threads_mutex);
325 COND_DESTROY(&PL_nthreads_cond);
326 #endif /* !defined(FAKE_THREADS) */
327 #endif /* USE_THREADS */
329 destruct_level = PL_perl_destruct_level;
333 if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
335 if (destruct_level < i)
348 /* We must account for everything. */
350 /* Destroy the main CV and syntax tree */
352 PL_curpad = AvARRAY(PL_comppad);
353 op_free(PL_main_root);
354 PL_main_root = Nullop;
356 PL_curcop = &PL_compiling;
357 PL_main_start = Nullop;
358 SvREFCNT_dec(PL_main_cv);
362 if (PL_sv_objcount) {
364 * Try to destruct global references. We do this first so that the
365 * destructors and destructees still exist. Some sv's might remain.
366 * Non-referenced objects are on their own.
371 /* unhook hooks which will soon be, or use, destroyed data */
372 SvREFCNT_dec(PL_warnhook);
373 PL_warnhook = Nullsv;
374 SvREFCNT_dec(PL_diehook);
376 SvREFCNT_dec(PL_parsehook);
377 PL_parsehook = Nullsv;
379 /* call exit list functions */
380 while (PL_exitlistlen-- > 0)
381 PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
383 Safefree(PL_exitlist);
385 if (destruct_level == 0){
387 DEBUG_P(debprofdump());
389 /* The exit() function will do everything that needs doing. */
393 /* loosen bonds of global variables */
396 (void)PerlIO_close(PL_rsfp);
400 /* Filters for program text */
401 SvREFCNT_dec(PL_rsfp_filters);
402 PL_rsfp_filters = Nullav;
405 PL_preprocess = FALSE;
411 PL_doswitches = FALSE;
412 PL_dowarn = G_WARN_OFF;
413 PL_doextract = FALSE;
414 PL_sawampersand = FALSE; /* must save all match strings */
415 PL_sawstudy = FALSE; /* do fbm_instr on all strings */
419 Safefree(PL_inplace);
423 SvREFCNT_dec(PL_e_script);
424 PL_e_script = Nullsv;
427 /* magical thingies */
429 Safefree(PL_ofs); /* $, */
432 Safefree(PL_ors); /* $\ */
435 SvREFCNT_dec(PL_rs); /* $/ */
438 SvREFCNT_dec(PL_nrs); /* $/ helper */
441 PL_multiline = 0; /* $* */
443 SvREFCNT_dec(PL_statname);
444 PL_statname = Nullsv;
447 /* defgv, aka *_ should be taken care of elsewhere */
449 /* clean up after study() */
450 SvREFCNT_dec(PL_lastscream);
451 PL_lastscream = Nullsv;
452 Safefree(PL_screamfirst);
454 Safefree(PL_screamnext);
457 /* startup and shutdown function lists */
458 SvREFCNT_dec(PL_beginav);
459 SvREFCNT_dec(PL_endav);
460 SvREFCNT_dec(PL_initav);
465 /* shortcuts just get cleared */
472 PL_argvoutgv = Nullgv;
474 PL_last_in_gv = Nullgv;
477 /* reset so print() ends up where we expect */
480 /* Prepare to destruct main symbol table. */
487 if (destruct_level >= 2) {
488 if (PL_scopestack_ix != 0)
489 warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
490 (long)PL_scopestack_ix);
491 if (PL_savestack_ix != 0)
492 warn("Unbalanced saves: %ld more saves than restores\n",
493 (long)PL_savestack_ix);
494 if (PL_tmps_floor != -1)
495 warn("Unbalanced tmps: %ld more allocs than frees\n",
496 (long)PL_tmps_floor + 1);
497 if (cxstack_ix != -1)
498 warn("Unbalanced context: %ld more PUSHes than POPs\n",
499 (long)cxstack_ix + 1);
502 /* Now absolutely destruct everything, somehow or other, loops or no. */
504 SvFLAGS(PL_strtab) |= SVTYPEMASK; /* don't clean out strtab now */
505 while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
506 last_sv_count = PL_sv_count;
509 SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
510 SvFLAGS(PL_strtab) |= SVt_PVHV;
512 /* Destruct the global string table. */
514 /* Yell and reset the HeVAL() slots that are still holding refcounts,
515 * so that sv_free() won't fail on them.
523 max = HvMAX(PL_strtab);
524 array = HvARRAY(PL_strtab);
528 warn("Unbalanced string table refcount: (%d) for \"%s\"",
529 HeVAL(hent) - Nullsv, HeKEY(hent));
530 HeVAL(hent) = Nullsv;
540 SvREFCNT_dec(PL_strtab);
542 if (PL_sv_count != 0)
543 warn("Scalars leaked: %ld\n", (long)PL_sv_count);
547 /* No SVs have survived, need to clean out */
549 PL_pidstatus = Nullhv;
550 Safefree(PL_origfilename);
551 Safefree(PL_archpat_auto);
552 Safefree(PL_reg_start_tmp);
554 Safefree(PL_reg_curpm);
555 Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
556 Safefree(PL_op_mask);
558 PL_hints = 0; /* Reset hints. Should hints be per-interpreter ? */
560 DEBUG_P(debprofdump());
562 MUTEX_DESTROY(&PL_strtab_mutex);
563 MUTEX_DESTROY(&PL_sv_mutex);
564 MUTEX_DESTROY(&PL_eval_mutex);
565 MUTEX_DESTROY(&PL_cred_mutex);
566 COND_DESTROY(&PL_eval_cond);
568 /* As the penultimate thing, free the non-arena SV for thrsv */
569 Safefree(SvPVX(PL_thrsv));
570 Safefree(SvANY(PL_thrsv));
573 #endif /* USE_THREADS */
575 /* As the absolutely last thing, free the non-arena SV for mess() */
578 /* it could have accumulated taint magic */
579 if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
582 for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
583 moremagic = mg->mg_moremagic;
584 if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
585 Safefree(mg->mg_ptr);
589 /* we know that type >= SVt_PV */
590 SvOOK_off(PL_mess_sv);
591 Safefree(SvPVX(PL_mess_sv));
592 Safefree(SvANY(PL_mess_sv));
593 Safefree(PL_mess_sv);
602 perl_free(PerlInterpreter *sv_interp)
608 if (!(PL_curinterp = sv_interp))
616 perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
618 perl_atexit(void (*fn) (void *), void *ptr)
621 Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
622 PL_exitlist[PL_exitlistlen].fn = fn;
623 PL_exitlist[PL_exitlistlen].ptr = ptr;
629 perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
631 perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
637 char *scriptname = NULL;
638 VOL bool dosearch = FALSE;
646 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
649 croak("suidperl is no longer needed since the kernel can now execute\n\
650 setuid perl scripts securely.\n");
655 if (!(PL_curinterp = sv_interp))
659 #if defined(NeXT) && defined(__DYNAMIC__)
660 _dyld_lookup_and_bind
661 ("__environ", (unsigned long *) &environ_pointer, NULL);
666 #ifndef VMS /* VMS doesn't have environ array */
667 PL_origenviron = environ;
672 /* Come here if running an undumped a.out. */
674 PL_origfilename = savepv(argv[0]);
675 PL_do_undump = FALSE;
676 cxstack_ix = -1; /* start label stack again */
678 init_postdump_symbols(argc,argv,env);
683 PL_curpad = AvARRAY(PL_comppad);
684 op_free(PL_main_root);
685 PL_main_root = Nullop;
687 PL_main_start = Nullop;
688 SvREFCNT_dec(PL_main_cv);
692 oldscope = PL_scopestack_ix;
693 PL_dowarn = G_WARN_OFF;
701 /* my_exit() was called */
702 while (PL_scopestack_ix > oldscope)
705 PL_curstash = PL_defstash;
707 call_list(oldscope, PL_endav);
709 return STATUS_NATIVE_EXPORT;
712 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
716 sv_setpvn(PL_linestr,"",0);
717 sv = newSVpv("",0); /* first used for -I flags */
721 for (argc--,argv++; argc > 0; argc--,argv++) {
722 if (argv[0][0] != '-' || !argv[0][1])
726 validarg = " PHOOEY ";
754 if (s = moreswitches(s))
764 if (PL_euid != PL_uid || PL_egid != PL_gid)
765 croak("No -e allowed in setuid scripts");
767 PL_e_script = newSVpv("",0);
768 filter_add(read_e_script, NULL);
771 sv_catpv(PL_e_script, s);
773 sv_catpv(PL_e_script, argv[1]);
777 croak("No code specified for -e");
778 sv_catpv(PL_e_script, "\n");
781 case 'I': /* -I handled both here and in moreswitches() */
783 if (!*++s && (s=argv[1]) != Nullch) {
786 while (s && isSPACE(*s))
790 for (e = s; *e && !isSPACE(*e); e++) ;
797 } /* XXX else croak? */
801 PL_preprocess = TRUE;
811 PL_preambleav = newAV();
812 av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
814 PL_Sv = newSVpv("print myconfig();",0);
816 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
818 sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
820 #if defined(DEBUGGING) || defined(MULTIPLICITY)
821 sv_catpv(PL_Sv,"\" Compile-time options:");
823 sv_catpv(PL_Sv," DEBUGGING");
826 sv_catpv(PL_Sv," MULTIPLICITY");
828 sv_catpv(PL_Sv,"\\n\",");
830 #if defined(LOCAL_PATCH_COUNT)
831 if (LOCAL_PATCH_COUNT > 0) {
833 sv_catpv(PL_Sv,"\" Locally applied patches:\\n\",");
834 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
835 if (PL_localpatches[i])
836 sv_catpvf(PL_Sv,"q\" \t%s\n\",",PL_localpatches[i]);
840 sv_catpvf(PL_Sv,"\" Built under %s\\n\"",OSNAME);
843 sv_catpvf(PL_Sv,",\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
845 sv_catpvf(PL_Sv,",\" Compiled on %s\\n\"",__DATE__);
850 @env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
851 print \" \\%ENV:\\n @env\\n\" if @env; \
852 print \" \\@INC:\\n @INC\\n\";");
855 PL_Sv = newSVpv("config_vars(qw(",0);
856 sv_catpv(PL_Sv, ++s);
857 sv_catpv(PL_Sv, "))");
860 av_push(PL_preambleav, PL_Sv);
861 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
867 PL_cddir = savepv(s);
872 if (!*++s || isSPACE(*s)) {
876 /* catch use of gnu style long options */
877 if (strEQ(s, "version")) {
881 if (strEQ(s, "help")) {
888 croak("Unrecognized switch: -%s (-h will show valid options)",s);
893 if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) {
904 if (!strchr("DIMUdmw", *s))
905 croak("Illegal switch in PERL5OPT: -%c", *s);
911 scriptname = argv[0];
914 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
916 else if (scriptname == Nullch) {
918 if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
926 open_script(scriptname,dosearch,sv,&fdscript);
928 validate_suid(validarg, scriptname,fdscript);
933 PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
934 sv_upgrade((SV *)PL_compcv, SVt_PVCV);
935 CvUNIQUE_on(PL_compcv);
937 PL_comppad = newAV();
938 av_push(PL_comppad, Nullsv);
939 PL_curpad = AvARRAY(PL_comppad);
940 PL_comppad_name = newAV();
941 PL_comppad_name_fill = 0;
942 PL_min_intro_pending = 0;
945 av_store(PL_comppad_name, 0, newSVpv("@_", 2));
946 PL_curpad[0] = (SV*)newAV();
947 SvPADMY_on(PL_curpad[0]); /* XXX Needed? */
948 CvOWNER(PL_compcv) = 0;
949 New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
950 MUTEX_INIT(CvMUTEXP(PL_compcv));
951 #endif /* USE_THREADS */
953 comppadlist = newAV();
954 AvREAL_off(comppadlist);
955 av_store(comppadlist, 0, (SV*)PL_comppad_name);
956 av_store(comppadlist, 1, (SV*)PL_comppad);
957 CvPADLIST(PL_compcv) = comppadlist;
959 boot_core_UNIVERSAL();
962 (*xsinit)(PERL_OBJECT_THIS); /* in case linked C routines want magical variables */
963 #if defined(VMS) || defined(WIN32) || defined(DJGPP)
967 init_predump_symbols();
968 /* init_postdump_symbols not currently designed to be called */
969 /* more than once (ENV isn't cleared first, for example) */
970 /* But running with -u leaves %ENV & @ARGV undefined! XXX */
972 init_postdump_symbols(argc,argv,env);
976 /* now parse the script */
978 SETERRNO(0,SS$_NORMAL);
980 if (yyparse() || PL_error_count) {
982 croak("%s had compilation errors.\n", PL_origfilename);
984 croak("Execution of %s aborted due to compilation errors.\n",
988 PL_curcop->cop_line = 0;
989 PL_curstash = PL_defstash;
990 PL_preprocess = FALSE;
992 SvREFCNT_dec(PL_e_script);
993 PL_e_script = Nullsv;
996 /* now that script is parsed, we can modify record separator */
998 PL_rs = SvREFCNT_inc(PL_nrs);
999 sv_setsv(perl_get_sv("/", TRUE), PL_rs);
1003 if (ckWARN(WARN_ONCE))
1004 gv_check(PL_defstash);
1010 if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
1011 dump_mstats("after compilation:");
1024 perl_run(PerlInterpreter *sv_interp)
1033 if (!(PL_curinterp = sv_interp))
1037 oldscope = PL_scopestack_ix;
1042 cxstack_ix = -1; /* start context stack again */
1045 /* my_exit() was called */
1046 while (PL_scopestack_ix > oldscope)
1049 PL_curstash = PL_defstash;
1051 call_list(oldscope, PL_endav);
1053 if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
1054 dump_mstats("after execution: ");
1057 return STATUS_NATIVE_EXPORT;
1059 if (!PL_restartop) {
1060 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
1065 POPSTACK_TO(PL_mainstack);
1069 DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
1070 PL_sawampersand ? "Enabling" : "Omitting"));
1072 if (!PL_restartop) {
1073 DEBUG_x(dump_all());
1074 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
1075 DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n",
1076 (unsigned long) thr));
1079 PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename);
1082 if (PERLDB_SINGLE && PL_DBsingle)
1083 sv_setiv(PL_DBsingle, 1);
1085 call_list(oldscope, PL_initav);
1091 PL_op = PL_restartop;
1095 else if (PL_main_start) {
1096 CvDEPTH(PL_main_cv) = 1;
1097 PL_op = PL_main_start;
1107 perl_get_sv(char *name, I32 create)
1111 if (name[1] == '\0' && !isALPHA(name[0])) {
1112 PADOFFSET tmp = find_threadsv(name);
1113 if (tmp != NOT_IN_PAD) {
1115 return THREADSV(tmp);
1118 #endif /* USE_THREADS */
1119 gv = gv_fetchpv(name, create, SVt_PV);
1126 perl_get_av(char *name, I32 create)
1128 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
1137 perl_get_hv(char *name, I32 create)
1139 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
1148 perl_get_cv(char *name, I32 create)
1150 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
1151 /* XXX unsafe for threads if eval_owner isn't held */
1152 if (create && !GvCVu(gv))
1153 return newSUB(start_subparse(FALSE, 0),
1154 newSVOP(OP_CONST, 0, newSVpv(name,0)),
1162 /* Be sure to refetch the stack pointer after calling these routines. */
1165 perl_call_argv(char *sub_name, I32 flags, register char **argv)
1167 /* See G_* flags in cop.h */
1168 /* null terminated arg list */
1175 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
1180 return perl_call_pv(sub_name, flags);
1184 perl_call_pv(char *sub_name, I32 flags)
1185 /* name of the subroutine */
1186 /* See G_* flags in cop.h */
1188 return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
1192 perl_call_method(char *methname, I32 flags)
1193 /* name of the subroutine */
1194 /* See G_* flags in cop.h */
1200 XPUSHs(sv_2mortal(newSVpv(methname,0)));
1205 return perl_call_sv(*PL_stack_sp--, flags);
1208 /* May be called with any of a CV, a GV, or an SV containing the name. */
1210 perl_call_sv(SV *sv, I32 flags)
1212 /* See G_* flags in cop.h */
1215 LOGOP myop; /* fake syntax tree node */
1219 bool oldcatch = CATCH_GET;
1224 if (flags & G_DISCARD) {
1229 Zero(&myop, 1, LOGOP);
1230 myop.op_next = Nullop;
1231 if (!(flags & G_NOARGS))
1232 myop.op_flags |= OPf_STACKED;
1233 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1234 (flags & G_ARRAY) ? OPf_WANT_LIST :
1239 EXTEND(PL_stack_sp, 1);
1240 *++PL_stack_sp = sv;
1242 oldscope = PL_scopestack_ix;
1244 if (PERLDB_SUB && PL_curstash != PL_debstash
1245 /* Handle first BEGIN of -d. */
1246 && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
1247 /* Try harder, since this may have been a sighandler, thus
1248 * curstash may be meaningless. */
1249 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
1250 && !(flags & G_NODEBUG))
1251 PL_op->op_private |= OPpENTERSUB_DB;
1253 if (flags & G_EVAL) {
1254 cLOGOP->op_other = PL_op;
1256 /* we're trying to emulate pp_entertry() here */
1258 register PERL_CONTEXT *cx;
1259 I32 gimme = GIMME_V;
1264 push_return(PL_op->op_next);
1265 PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
1267 PL_eval_root = PL_op; /* Only needed so that goto works right. */
1270 if (flags & G_KEEPERR)
1285 /* my_exit() was called */
1286 PL_curstash = PL_defstash;
1290 croak("Callback called exit");
1295 PL_op = PL_restartop;
1299 PL_stack_sp = PL_stack_base + oldmark;
1300 if (flags & G_ARRAY)
1304 *++PL_stack_sp = &PL_sv_undef;
1312 if (PL_op == (OP*)&myop)
1313 PL_op = pp_entersub(ARGS);
1316 retval = PL_stack_sp - (PL_stack_base + oldmark);
1317 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1321 if (flags & G_EVAL) {
1322 if (PL_scopestack_ix > oldscope) {
1326 register PERL_CONTEXT *cx;
1338 CATCH_SET(oldcatch);
1340 if (flags & G_DISCARD) {
1341 PL_stack_sp = PL_stack_base + oldmark;
1350 /* Eval a string. The G_EVAL flag is always assumed. */
1353 perl_eval_sv(SV *sv, I32 flags)
1355 /* See G_* flags in cop.h */
1358 UNOP myop; /* fake syntax tree node */
1359 I32 oldmark = SP - PL_stack_base;
1366 if (flags & G_DISCARD) {
1373 Zero(PL_op, 1, UNOP);
1374 EXTEND(PL_stack_sp, 1);
1375 *++PL_stack_sp = sv;
1376 oldscope = PL_scopestack_ix;
1378 if (!(flags & G_NOARGS))
1379 myop.op_flags = OPf_STACKED;
1380 myop.op_next = Nullop;
1381 myop.op_type = OP_ENTEREVAL;
1382 myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
1383 (flags & G_ARRAY) ? OPf_WANT_LIST :
1385 if (flags & G_KEEPERR)
1386 myop.op_flags |= OPf_SPECIAL;
1396 /* my_exit() was called */
1397 PL_curstash = PL_defstash;
1401 croak("Callback called exit");
1406 PL_op = PL_restartop;
1410 PL_stack_sp = PL_stack_base + oldmark;
1411 if (flags & G_ARRAY)
1415 *++PL_stack_sp = &PL_sv_undef;
1420 if (PL_op == (OP*)&myop)
1421 PL_op = pp_entereval(ARGS);
1424 retval = PL_stack_sp - (PL_stack_base + oldmark);
1425 if (!(flags & G_KEEPERR))
1430 if (flags & G_DISCARD) {
1431 PL_stack_sp = PL_stack_base + oldmark;
1441 perl_eval_pv(char *p, I32 croak_on_error)
1444 SV* sv = newSVpv(p, 0);
1447 perl_eval_sv(sv, G_SCALAR);
1454 if (croak_on_error && SvTRUE(ERRSV)) {
1456 croak(SvPVx(ERRSV, n_a));
1462 /* Require a module. */
1465 perl_require_pv(char *pv)
1469 PUSHSTACKi(PERLSI_REQUIRE);
1471 sv = sv_newmortal();
1472 sv_setpv(sv, "require '");
1475 perl_eval_sv(sv, G_DISCARD);
1481 magicname(char *sym, char *name, I32 namlen)
1485 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1486 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1490 usage(char *name) /* XXX move this out into a module ? */
1493 /* This message really ought to be max 23 lines.
1494 * Removed -h because the user already knows that opton. Others? */
1496 static char *usage_msg[] = {
1497 "-0[octal] specify record separator (\\0, if no argument)",
1498 "-a autosplit mode with -n or -p (splits $_ into @F)",
1499 "-c check syntax only (runs BEGIN and END blocks)",
1500 "-d[:debugger] run scripts under debugger",
1501 "-D[number/list] set debugging flags (argument is a bit mask or flags)",
1502 "-e 'command' one line of script. Several -e's allowed. Omit [programfile].",
1503 "-F/pattern/ split() pattern for autosplit (-a). The //'s are optional.",
1504 "-i[extension] edit <> files in place (make backup if extension supplied)",
1505 "-Idirectory specify @INC/#include directory (may be used more than once)",
1506 "-l[octal] enable line ending processing, specifies line terminator",
1507 "-[mM][-]module.. executes `use/no module...' before executing your script.",
1508 "-n assume 'while (<>) { ... }' loop around your script",
1509 "-p assume loop like -n but print line also like sed",
1510 "-P run script through C preprocessor before compilation",
1511 "-s enable some switch parsing for switches after script name",
1512 "-S look for the script using PATH environment variable",
1513 "-T turn on tainting checks",
1514 "-u dump core after parsing script",
1515 "-U allow unsafe operations",
1516 "-v print version number, patchlevel plus VERY IMPORTANT perl info",
1517 "-V[:variable] print perl configuration information",
1518 "-w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
1519 "-x[directory] strip off text before #!perl line and perhaps cd to directory",
1523 char **p = usage_msg;
1525 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1527 printf("\n %s", *p++);
1530 /* This routine handles any switches that can be given during run */
1533 moreswitches(char *s)
1542 rschar = scan_oct(s, 4, &numlen);
1543 SvREFCNT_dec(PL_nrs);
1544 if (rschar & ~((U8)~0))
1545 PL_nrs = &PL_sv_undef;
1546 else if (!rschar && numlen >= 2)
1547 PL_nrs = newSVpv("", 0);
1550 PL_nrs = newSVpv(&ch, 1);
1556 PL_splitstr = savepv(s + 1);
1570 if (*s == ':' || *s == '=') {
1571 my_setenv("PERL5DB", form("use Devel::%s;", ++s));
1575 PL_perldb = PERLDB_ALL;
1582 if (isALPHA(s[1])) {
1583 static char debopts[] = "psltocPmfrxuLHXDS";
1586 for (s++; *s && (d = strchr(debopts,*s)); s++)
1587 PL_debug |= 1 << (d - debopts);
1590 PL_debug = atoi(s+1);
1591 for (s++; isDIGIT(*s); s++) ;
1593 PL_debug |= 0x80000000;
1595 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1596 for (s++; isALNUM(*s); s++) ;
1601 usage(PL_origargv[0]);
1605 Safefree(PL_inplace);
1606 PL_inplace = savepv(s+1);
1608 for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
1611 if (*s == '-') /* Additional switches on #! line. */
1615 case 'I': /* -I handled both here and in parse_perl() */
1618 while (*s && isSPACE(*s))
1622 for (e = s; *e && !isSPACE(*e); e++) ;
1623 p = savepvn(s, e-s);
1629 croak("No space allowed after -I");
1637 PL_ors = savepv("\n");
1639 *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1644 if (RsPARA(PL_nrs)) {
1649 PL_ors = SvPV(PL_nrs, PL_orslen);
1650 PL_ors = savepvn(PL_ors, PL_orslen);
1654 forbid_setid("-M"); /* XXX ? */
1657 forbid_setid("-m"); /* XXX ? */
1662 /* -M-foo == 'no foo' */
1663 if (*s == '-') { use = "no "; ++s; }
1664 sv = newSVpv(use,0);
1666 /* We allow -M'Module qw(Foo Bar)' */
1667 while(isALNUM(*s) || *s==':') ++s;
1669 sv_catpv(sv, start);
1670 if (*(start-1) == 'm') {
1672 croak("Can't use '%c' after -mname", *s);
1673 sv_catpv( sv, " ()");
1676 sv_catpvn(sv, start, s-start);
1677 sv_catpv(sv, " split(/,/,q{");
1682 if (PL_preambleav == NULL)
1683 PL_preambleav = newAV();
1684 av_push(PL_preambleav, sv);
1687 croak("No space allowed after -%c", *(s-1));
1699 PL_doswitches = TRUE;
1704 croak("Too late for \"-T\" option");
1708 PL_do_undump = TRUE;
1716 #if defined(SUBVERSION) && SUBVERSION > 0
1717 printf("\nThis is perl, version 5.%03d_%02d built for %s",
1718 PATCHLEVEL, SUBVERSION, ARCHNAME);
1720 printf("\nThis is perl, version %s built for %s",
1721 PL_patchlevel, ARCHNAME);
1723 #if defined(LOCAL_PATCH_COUNT)
1724 if (LOCAL_PATCH_COUNT > 0)
1725 printf("\n(with %d registered patch%s, see perl -V for more detail)",
1726 LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
1729 printf("\n\nCopyright 1987-1998, Larry Wall\n");
1731 printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1734 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1735 printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
1738 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1739 "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
1742 printf("atariST series port, ++jrb bammi@cadence.com\n");
1745 printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
1748 printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
1751 printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
1754 printf("Stratus VOS port by Paul_Green@stratus.com, 1997-1998\n");
1757 printf("VM/ESA port by Neale Ferguson, 1998\n");
1760 printf("BS2000 (POSIX) port by Start Amadeus GmbH, 1998\n");
1763 printf("MiNT port by Guido Flohr, 1997\n");
1765 #ifdef BINARY_BUILD_NOTICE
1766 BINARY_BUILD_NOTICE;
1769 Perl may be copied only under the terms of either the Artistic License or the\n\
1770 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n\
1771 Complete documentation for Perl, including FAQ lists, should be found on\n\
1772 this system using `man perl' or `perldoc perl'. If you have access to the\n\
1773 Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
1776 if (! (PL_dowarn & G_WARN_ALL_MASK))
1777 PL_dowarn |= G_WARN_ON;
1781 PL_dowarn = G_WARN_ALL_ON|G_WARN_ON;
1782 PL_compiling.cop_warnings = WARN_ALL ;
1786 PL_dowarn = G_WARN_ALL_OFF;
1787 PL_compiling.cop_warnings = WARN_NONE ;
1792 if (s[1] == '-') /* Additional switches on #! line. */
1797 #if defined(WIN32) || !defined(PERL_STRICT_CR)
1803 #ifdef ALTERNATE_SHEBANG
1804 case 'S': /* OS/2 needs -S on "extproc" line. */
1812 croak("Can't emulate -%.1s on #! line",s);
1817 /* compliments of Tom Christiansen */
1819 /* unexec() can be found in the Gnu emacs distribution */
1820 /* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
1831 prog = newSVpv(BIN_EXP, 0);
1832 sv_catpv(prog, "/perl");
1833 file = newSVpv(PL_origfilename, 0);
1834 sv_catpv(file, ".perldump");
1836 unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
1837 /* unexec prints msg to stderr in case of failure */
1838 PerlProc_exit(status);
1841 # include <lib$routines.h>
1842 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1844 ABORT(); /* for use with undump */
1849 /* initialize curinterp */
1854 #ifdef PERL_OBJECT /* XXX kludge */
1857 PL_chopset = " \n-"; \
1858 PL_copline = NOLINE; \
1859 PL_curcop = &PL_compiling;\
1860 PL_curcopdb = NULL; \
1863 PL_dumpindent = 4; \
1864 PL_laststatval = -1; \
1865 PL_laststype = OP_STAT; \
1866 PL_maxscream = -1; \
1867 PL_maxsysfd = MAXSYSFD; \
1868 PL_statname = Nullsv; \
1869 PL_tmps_floor = -1; \
1871 PL_op_mask = NULL; \
1873 PL_laststatval = -1; \
1874 PL_laststype = OP_STAT; \
1875 PL_mess_sv = Nullsv; \
1876 PL_splitstr = " "; \
1877 PL_generation = 100; \
1878 PL_exitlist = NULL; \
1879 PL_exitlistlen = 0; \
1881 PL_in_clean_objs = FALSE; \
1882 PL_in_clean_all = FALSE; \
1883 PL_profiledata = NULL; \
1885 PL_rsfp_filters = Nullav; \
1890 # ifdef MULTIPLICITY
1891 # define PERLVAR(var,type)
1892 # define PERLVARI(var,type,init) PL_curinterp->var = init;
1893 # define PERLVARIC(var,type,init) PL_curinterp->var = init;
1894 # include "intrpvar.h"
1895 # ifndef USE_THREADS
1896 # include "thrdvar.h"
1902 # define PERLVAR(var,type)
1903 # define PERLVARI(var,type,init) PL_##var = init;
1904 # define PERLVARIC(var,type,init) PL_##var = init;
1905 # include "intrpvar.h"
1906 # ifndef USE_THREADS
1907 # include "thrdvar.h"
1918 init_main_stash(void)
1923 /* Note that strtab is a rather special HV. Assumptions are made
1924 about not iterating on it, and not adding tie magic to it.
1925 It is properly deallocated in perl_destruct() */
1926 PL_strtab = newHV();
1928 MUTEX_INIT(&PL_strtab_mutex);
1930 HvSHAREKEYS_off(PL_strtab); /* mandatory */
1931 hv_ksplit(PL_strtab, 512);
1933 PL_curstash = PL_defstash = newHV();
1934 PL_curstname = newSVpv("main",4);
1935 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1936 SvREFCNT_dec(GvHV(gv));
1937 GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
1939 HvNAME(PL_defstash) = savepv("main");
1940 PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1941 GvMULTI_on(PL_incgv);
1942 PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
1943 GvMULTI_on(PL_hintgv);
1944 PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1945 PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1946 GvMULTI_on(PL_errgv);
1947 PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
1948 GvMULTI_on(PL_replgv);
1949 (void)form("%240s",""); /* Preallocate temp - for immediate signals. */
1950 sv_grow(ERRSV, 240); /* Preallocate - for immediate signals. */
1951 sv_setpvn(ERRSV, "", 0);
1952 PL_curstash = PL_defstash;
1953 PL_compiling.cop_stash = PL_defstash;
1954 PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1955 PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
1956 /* We must init $/ before switches are processed. */
1957 sv_setpvn(perl_get_sv("/", TRUE), "\n", 1);
1961 open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
1969 PL_origfilename = savepv("-e");
1972 /* if find_script() returns, it returns a malloc()-ed value */
1973 PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
1975 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1976 char *s = scriptname + 8;
1977 *fdscript = atoi(s);
1981 scriptname = savepv(s + 1);
1982 Safefree(PL_origfilename);
1983 PL_origfilename = scriptname;
1988 PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
1989 if (strEQ(PL_origfilename,"-"))
1991 if (*fdscript >= 0) {
1992 PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
1993 #if defined(HAS_FCNTL) && defined(F_SETFD)
1995 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
1998 else if (PL_preprocess) {
1999 char *cpp_cfg = CPPSTDIN;
2000 SV *cpp = newSVpv("",0);
2001 SV *cmd = NEWSV(0,0);
2003 if (strEQ(cpp_cfg, "cppstdin"))
2004 sv_catpvf(cpp, "%s/", BIN_EXP);
2005 sv_catpv(cpp, cpp_cfg);
2008 sv_catpv(sv,PRIVLIB_EXP);
2012 sed %s -e \"/^[^#]/b\" \
2013 -e \"/^#[ ]*include[ ]/b\" \
2014 -e \"/^#[ ]*define[ ]/b\" \
2015 -e \"/^#[ ]*if[ ]/b\" \
2016 -e \"/^#[ ]*ifdef[ ]/b\" \
2017 -e \"/^#[ ]*ifndef[ ]/b\" \
2018 -e \"/^#[ ]*else/b\" \
2019 -e \"/^#[ ]*elif[ ]/b\" \
2020 -e \"/^#[ ]*undef[ ]/b\" \
2021 -e \"/^#[ ]*endif/b\" \
2024 (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
2028 %s %s -e '/^[^#]/b' \
2029 -e '/^#[ ]*include[ ]/b' \
2030 -e '/^#[ ]*define[ ]/b' \
2031 -e '/^#[ ]*if[ ]/b' \
2032 -e '/^#[ ]*ifdef[ ]/b' \
2033 -e '/^#[ ]*ifndef[ ]/b' \
2034 -e '/^#[ ]*else/b' \
2035 -e '/^#[ ]*elif[ ]/b' \
2036 -e '/^#[ ]*undef[ ]/b' \
2037 -e '/^#[ ]*endif/b' \
2042 %s %s -e '/^[^#]/b' \
2043 -e '/^#[ ]*include[ ]/b' \
2044 -e '/^#[ ]*define[ ]/b' \
2045 -e '/^#[ ]*if[ ]/b' \
2046 -e '/^#[ ]*ifdef[ ]/b' \
2047 -e '/^#[ ]*ifndef[ ]/b' \
2048 -e '/^#[ ]*else/b' \
2049 -e '/^#[ ]*elif[ ]/b' \
2050 -e '/^#[ ]*undef[ ]/b' \
2051 -e '/^#[ ]*endif/b' \
2060 (PL_doextract ? "-e '1,/^#/d\n'" : ""),
2062 scriptname, cpp, sv, CPPMINUS);
2063 PL_doextract = FALSE;
2064 #ifdef IAMSUID /* actually, this is caught earlier */
2065 if (PL_euid != PL_uid && !PL_euid) { /* if running suidperl */
2067 (void)seteuid(PL_uid); /* musn't stay setuid root */
2070 (void)setreuid((Uid_t)-1, PL_uid);
2072 #ifdef HAS_SETRESUID
2073 (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
2075 PerlProc_setuid(PL_uid);
2079 if (PerlProc_geteuid() != PL_uid)
2080 croak("Can't do seteuid!\n");
2082 #endif /* IAMSUID */
2083 PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
2087 else if (!*scriptname) {
2088 forbid_setid("program input from stdin");
2089 PL_rsfp = PerlIO_stdin();
2092 PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
2093 #if defined(HAS_FCNTL) && defined(F_SETFD)
2095 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1); /* ensure close-on-exec */
2100 #ifndef IAMSUID /* in case script is not readable before setuid */
2102 PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
2103 PL_statbuf.st_mode & (S_ISUID|S_ISGID))
2106 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2107 croak("Can't do setuid\n");
2111 croak("Can't open perl script \"%s\": %s\n",
2112 SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
2118 fd_on_nosuid_fs(int fd)
2123 * Preferred order: fstatvfs(), fstatfs(), getmntent().
2124 * fstatvfs() is UNIX98.
2126 * getmntent() is O(number-of-mounted-filesystems) and can hang.
2129 # ifdef HAS_FSTATVFS
2130 struct statvfs stfs;
2131 check_okay = fstatvfs(fd, &stfs) == 0;
2132 on_nosuid = check_okay && (stfs.f_flag & ST_NOSUID);
2134 # if defined(HAS_FSTATFS) && defined(HAS_STRUCT_STATFS_FLAGS)
2136 check_okay = fstatfs(fd, &stfs) == 0;
2137 # undef PERL_MOUNT_NOSUID
2138 # if !defined(PERL_MOUNT_NOSUID) && defined(MNT_NOSUID)
2139 # define PERL_MOUNT_NOSUID MNT_NOSUID
2141 # if !defined(PERL_MOUNT_NOSUID) && defined(MS_NOSUID)
2142 # define PERL_MOUNT_NOSUID MS_NOSUID
2144 # if !defined(PERL_MOUNT_NOSUID) && defined(M_NOSUID)
2145 # define PERL_MOUNT_NOSUID M_NOSUID
2147 # ifdef PERL_MOUNT_NOSUID
2148 on_nosuid = check_okay && (stfs.f_flags & PERL_MOUNT_NOSUID);
2151 # if defined(HAS_GETMNTENT) && defined(HAS_HASMNTOPT) && defined(MNTOPT_NOSUID)
2152 FILE *mtab = fopen("/etc/mtab", "r");
2153 struct mntent *entry;
2154 struct stat stb, fsb;
2156 if (mtab && (fstat(fd, &stb) == 0)) {
2157 while (entry = getmntent(mtab)) {
2158 if (stat(entry->mnt_dir, &fsb) == 0
2159 && fsb.st_dev == stb.st_dev)
2161 /* found the filesystem */
2163 if (hasmntopt(entry, MNTOPT_NOSUID))
2166 } /* A single fs may well fail its stat(). */
2171 # endif /* mntent */
2172 # endif /* statfs */
2173 # endif /* statvfs */
2175 croak("Can't check filesystem of script \"%s\"", PL_origfilename);
2178 #endif /* IAMSUID */
2181 validate_suid(char *validarg, char *scriptname, int fdscript)
2185 /* do we need to emulate setuid on scripts? */
2187 /* This code is for those BSD systems that have setuid #! scripts disabled
2188 * in the kernel because of a security problem. Merely defining DOSUID
2189 * in perl will not fix that problem, but if you have disabled setuid
2190 * scripts in the kernel, this will attempt to emulate setuid and setgid
2191 * on scripts that have those now-otherwise-useless bits set. The setuid
2192 * root version must be called suidperl or sperlN.NNN. If regular perl
2193 * discovers that it has opened a setuid script, it calls suidperl with
2194 * the same argv that it had. If suidperl finds that the script it has
2195 * just opened is NOT setuid root, it sets the effective uid back to the
2196 * uid. We don't just make perl setuid root because that loses the
2197 * effective uid we had before invoking perl, if it was different from the
2200 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
2201 * be defined in suidperl only. suidperl must be setuid root. The
2202 * Configure script will set this up for you if you want it.
2209 if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0) /* normal stat is insecure */
2210 croak("Can't stat script \"%s\"",PL_origfilename);
2211 if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
2216 #ifndef HAS_SETREUID
2217 /* On this access check to make sure the directories are readable,
2218 * there is actually a small window that the user could use to make
2219 * filename point to an accessible directory. So there is a faint
2220 * chance that someone could execute a setuid script down in a
2221 * non-accessible directory. I don't know what to do about that.
2222 * But I don't think it's too important. The manual lies when
2223 * it says access() is useful in setuid programs.
2225 if (PerlLIO_access(SvPVX(GvSV(PL_curcop->cop_filegv)),1)) /*double check*/
2226 croak("Permission denied");
2228 /* If we can swap euid and uid, then we can determine access rights
2229 * with a simple stat of the file, and then compare device and
2230 * inode to make sure we did stat() on the same file we opened.
2231 * Then we just have to make sure he or she can execute it.
2234 struct stat tmpstatbuf;
2238 setreuid(PL_euid,PL_uid) < 0
2241 setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
2244 || PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
2245 croak("Can't swap uid and euid"); /* really paranoid */
2246 if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
2247 croak("Permission denied"); /* testing full pathname here */
2248 #if defined(IAMSUID) && !defined(NO_NOSUID_CHECK)
2249 if (fd_on_nosuid_fs(PerlIO_fileno(PL_rsfp)))
2250 croak("Permission denied");
2252 if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
2253 tmpstatbuf.st_ino != PL_statbuf.st_ino) {
2254 (void)PerlIO_close(PL_rsfp);
2255 if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) { /* heh, heh */
2256 PerlIO_printf(PL_rsfp,
2257 "User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
2258 (Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
2259 (long)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
2260 (long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
2261 SvPVX(GvSV(PL_curcop->cop_filegv)),
2262 (long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
2263 (void)PerlProc_pclose(PL_rsfp);
2265 croak("Permission denied\n");
2269 setreuid(PL_uid,PL_euid) < 0
2271 # if defined(HAS_SETRESUID)
2272 setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
2275 || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
2276 croak("Can't reswap uid and euid");
2277 if (!cando(S_IXUSR,FALSE,&PL_statbuf)) /* can real uid exec? */
2278 croak("Permission denied\n");
2280 #endif /* HAS_SETREUID */
2281 #endif /* IAMSUID */
2283 if (!S_ISREG(PL_statbuf.st_mode))
2284 croak("Permission denied");
2285 if (PL_statbuf.st_mode & S_IWOTH)
2286 croak("Setuid/gid script is writable by world");
2287 PL_doswitches = FALSE; /* -s is insecure in suid */
2288 PL_curcop->cop_line++;
2289 if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
2290 strnNE(SvPV(PL_linestr,n_a),"#!",2) ) /* required even on Sys V */
2291 croak("No #! line");
2292 s = SvPV(PL_linestr,n_a)+2;
2294 while (!isSPACE(*s)) s++;
2295 for (s2 = s; (s2 > SvPV(PL_linestr,n_a)+2 &&
2296 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
2297 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
2298 croak("Not a perl script");
2299 while (*s == ' ' || *s == '\t') s++;
2301 * #! arg must be what we saw above. They can invoke it by
2302 * mentioning suidperl explicitly, but they may not add any strange
2303 * arguments beyond what #! says if they do invoke suidperl that way.
2305 len = strlen(validarg);
2306 if (strEQ(validarg," PHOOEY ") ||
2307 strnNE(s,validarg,len) || !isSPACE(s[len]))
2308 croak("Args must match #! line");
2311 if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
2312 PL_euid == PL_statbuf.st_uid)
2314 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2315 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2316 #endif /* IAMSUID */
2318 if (PL_euid) { /* oops, we're not the setuid root perl */
2319 (void)PerlIO_close(PL_rsfp);
2322 PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
2324 croak("Can't do setuid\n");
2327 if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
2329 (void)setegid(PL_statbuf.st_gid);
2332 (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
2334 #ifdef HAS_SETRESGID
2335 (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
2337 PerlProc_setgid(PL_statbuf.st_gid);
2341 if (PerlProc_getegid() != PL_statbuf.st_gid)
2342 croak("Can't do setegid!\n");
2344 if (PL_statbuf.st_mode & S_ISUID) {
2345 if (PL_statbuf.st_uid != PL_euid)
2347 (void)seteuid(PL_statbuf.st_uid); /* all that for this */
2350 (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
2352 #ifdef HAS_SETRESUID
2353 (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
2355 PerlProc_setuid(PL_statbuf.st_uid);
2359 if (PerlProc_geteuid() != PL_statbuf.st_uid)
2360 croak("Can't do seteuid!\n");
2362 else if (PL_uid) { /* oops, mustn't run as root */
2364 (void)seteuid((Uid_t)PL_uid);
2367 (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
2369 #ifdef HAS_SETRESUID
2370 (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
2372 PerlProc_setuid((Uid_t)PL_uid);
2376 if (PerlProc_geteuid() != PL_uid)
2377 croak("Can't do seteuid!\n");
2380 if (!cando(S_IXUSR,TRUE,&PL_statbuf))
2381 croak("Permission denied\n"); /* they can't do this */
2384 else if (PL_preprocess)
2385 croak("-P not allowed for setuid/setgid script\n");
2386 else if (fdscript >= 0)
2387 croak("fd script not allowed in suidperl\n");
2389 croak("Script is not setuid/setgid in suidperl\n");
2391 /* We absolutely must clear out any saved ids here, so we */
2392 /* exec the real perl, substituting fd script for scriptname. */
2393 /* (We pass script name as "subdir" of fd, which perl will grok.) */
2394 PerlIO_rewind(PL_rsfp);
2395 PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0); /* just in case rewind didn't */
2396 for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
2397 if (!PL_origargv[which])
2398 croak("Permission denied");
2399 PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
2400 PerlIO_fileno(PL_rsfp), PL_origargv[which]));
2401 #if defined(HAS_FCNTL) && defined(F_SETFD)
2402 fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0); /* ensure no close-on-exec */
2404 PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
2405 croak("Can't do setuid\n");
2406 #endif /* IAMSUID */
2408 if (PL_euid != PL_uid || PL_egid != PL_gid) { /* (suidperl doesn't exist, in fact) */
2409 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
2411 PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf); /* may be either wrapped or real suid */
2412 if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
2414 (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
2417 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2418 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2419 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2420 /* not set-id, must be wrapped */
2426 find_beginning(void)
2428 register char *s, *s2;
2430 /* skip forward in input to the real script? */
2433 while (PL_doextract) {
2434 if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
2435 croak("No Perl script found in input\n");
2436 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2437 PerlIO_ungetc(PL_rsfp, '\n'); /* to keep line count right */
2438 PL_doextract = FALSE;
2439 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2441 while (*s == ' ' || *s == '\t') s++;
2443 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2444 if (strnEQ(s2-4,"perl",4))
2446 while (s = moreswitches(s)) ;
2448 if (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
2449 croak("Can't chdir to %s",PL_cddir);
2458 PL_uid = (int)PerlProc_getuid();
2459 PL_euid = (int)PerlProc_geteuid();
2460 PL_gid = (int)PerlProc_getgid();
2461 PL_egid = (int)PerlProc_getegid();
2463 PL_uid |= PL_gid << 16;
2464 PL_euid |= PL_egid << 16;
2466 PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
2470 forbid_setid(char *s)
2472 if (PL_euid != PL_uid)
2473 croak("No %s allowed while running setuid", s);
2474 if (PL_egid != PL_gid)
2475 croak("No %s allowed while running setgid", s);
2482 PL_curstash = PL_debstash;
2483 PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2484 AvREAL_off(PL_dbargs);
2485 PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2486 PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2487 PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2488 PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2489 sv_setiv(PL_DBsingle, 0);
2490 PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2491 sv_setiv(PL_DBtrace, 0);
2492 PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2493 sv_setiv(PL_DBsignal, 0);
2494 PL_curstash = PL_defstash;
2497 #ifndef STRESS_REALLOC
2498 #define REASONABLE(size) (size)
2500 #define REASONABLE(size) (1) /* unreasonable */
2504 init_stacks(ARGSproto)
2506 /* start with 128-item stack and 8K cxstack */
2507 PL_curstackinfo = new_stackinfo(REASONABLE(128),
2508 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
2509 PL_curstackinfo->si_type = PERLSI_MAIN;
2510 PL_curstack = PL_curstackinfo->si_stack;
2511 PL_mainstack = PL_curstack; /* remember in case we switch stacks */
2513 PL_stack_base = AvARRAY(PL_curstack);
2514 PL_stack_sp = PL_stack_base;
2515 PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
2517 New(50,PL_tmps_stack,REASONABLE(128),SV*);
2520 PL_tmps_max = REASONABLE(128);
2522 New(54,PL_markstack,REASONABLE(32),I32);
2523 PL_markstack_ptr = PL_markstack;
2524 PL_markstack_max = PL_markstack + REASONABLE(32);
2528 New(54,PL_scopestack,REASONABLE(32),I32);
2529 PL_scopestack_ix = 0;
2530 PL_scopestack_max = REASONABLE(32);
2532 New(54,PL_savestack,REASONABLE(128),ANY);
2533 PL_savestack_ix = 0;
2534 PL_savestack_max = REASONABLE(128);
2536 New(54,PL_retstack,REASONABLE(16),OP*);
2538 PL_retstack_max = REASONABLE(16);
2547 while (PL_curstackinfo->si_next)
2548 PL_curstackinfo = PL_curstackinfo->si_next;
2549 while (PL_curstackinfo) {
2550 PERL_SI *p = PL_curstackinfo->si_prev;
2551 /* curstackinfo->si_stack got nuked by sv_free_arenas() */
2552 Safefree(PL_curstackinfo->si_cxstack);
2553 Safefree(PL_curstackinfo);
2554 PL_curstackinfo = p;
2556 Safefree(PL_tmps_stack);
2557 Safefree(PL_markstack);
2558 Safefree(PL_scopestack);
2559 Safefree(PL_savestack);
2560 Safefree(PL_retstack);
2562 Safefree(PL_debname);
2563 Safefree(PL_debdelim);
2568 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2579 lex_start(PL_linestr);
2581 PL_subname = newSVpv("main",4);
2585 init_predump_symbols(void)
2591 sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
2592 PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2593 GvMULTI_on(PL_stdingv);
2594 IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
2595 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2597 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_stdingv));
2599 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2601 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2603 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2605 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_defoutgv));
2607 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2608 GvMULTI_on(othergv);
2609 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2610 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2612 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2614 PL_statname = NEWSV(66,0); /* last filename we did stat on */
2617 PL_osname = savepv(OSNAME);
2621 init_postdump_symbols(register int argc, register char **argv, register char **env)
2628 argc--,argv++; /* skip name of script */
2629 if (PL_doswitches) {
2630 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2633 if (argv[0][1] == '-') {
2637 if (s = strchr(argv[0], '=')) {
2639 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2642 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2645 PL_toptarget = NEWSV(0,0);
2646 sv_upgrade(PL_toptarget, SVt_PVFM);
2647 sv_setpvn(PL_toptarget, "", 0);
2648 PL_bodytarget = NEWSV(0,0);
2649 sv_upgrade(PL_bodytarget, SVt_PVFM);
2650 sv_setpvn(PL_bodytarget, "", 0);
2651 PL_formtarget = PL_bodytarget;
2654 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2655 sv_setpv(GvSV(tmpgv),PL_origfilename);
2656 magicname("0", "0", 1);
2658 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2659 sv_setpv(GvSV(tmpgv),PL_origargv[0]);
2660 if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2661 GvMULTI_on(PL_argvgv);
2662 (void)gv_AVadd(PL_argvgv);
2663 av_clear(GvAVn(PL_argvgv));
2664 for (; argc > 0; argc--,argv++) {
2665 av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
2668 if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2670 GvMULTI_on(PL_envgv);
2671 hv = GvHVn(PL_envgv);
2672 hv_magic(hv, PL_envgv, 'E');
2673 #ifndef VMS /* VMS doesn't have environ array */
2674 /* Note that if the supplied env parameter is actually a copy
2675 of the global environ then it may now point to free'd memory
2676 if the environment has been modified since. To avoid this
2677 problem we treat env==NULL as meaning 'use the default'
2682 environ[0] = Nullch;
2683 for (; *env; env++) {
2684 if (!(s = strchr(*env,'=')))
2690 sv = newSVpv(s--,0);
2691 (void)hv_store(hv, *env, s - *env, sv, 0);
2693 #if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
2694 /* Sins of the RTL. See note in my_setenv(). */
2695 (void)PerlEnv_putenv(savepv(*env));
2699 #ifdef DYNAMIC_ENV_FETCH
2700 HvNAME(hv) = savepv(ENV_HV_NAME);
2704 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2705 sv_setiv(GvSV(tmpgv), (IV)getpid());
2714 s = PerlEnv_getenv("PERL5LIB");
2718 incpush(PerlEnv_getenv("PERLLIB"), FALSE);
2720 /* Treat PERL5?LIB as a possible search list logical name -- the
2721 * "natural" VMS idiom for a Unix path string. We allow each
2722 * element to be a set of |-separated directories for compatibility.
2726 if (my_trnlnm("PERL5LIB",buf,0))
2727 do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
2729 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
2733 /* Use the ~-expanded versions of APPLLIB (undocumented),
2734 ARCHLIB PRIVLIB SITEARCH and SITELIB
2737 incpush(APPLLIB_EXP, TRUE);
2741 incpush(ARCHLIB_EXP, FALSE);
2744 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2747 incpush(PRIVLIB_EXP, TRUE);
2749 incpush(PRIVLIB_EXP, FALSE);
2753 incpush(SITEARCH_EXP, FALSE);
2757 incpush(SITELIB_EXP, TRUE);
2759 incpush(SITELIB_EXP, FALSE);
2763 incpush(".", FALSE);
2767 # define PERLLIB_SEP ';'
2770 # define PERLLIB_SEP '|'
2772 # define PERLLIB_SEP ':'
2775 #ifndef PERLLIB_MANGLE
2776 # define PERLLIB_MANGLE(s,n) (s)
2780 incpush(char *p, int addsubdirs)
2782 SV *subdir = Nullsv;
2788 subdir = sv_newmortal();
2789 if (!PL_archpat_auto) {
2790 STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
2791 + sizeof("//auto"));
2792 New(55, PL_archpat_auto, len, char);
2793 sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
2795 for (len = sizeof(ARCHNAME) + 2;
2796 PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
2797 if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
2802 /* Break at all separators */
2804 SV *libdir = NEWSV(55,0);
2807 /* skip any consecutive separators */
2808 while ( *p == PERLLIB_SEP ) {
2809 /* Uncomment the next line for PATH semantics */
2810 /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
2814 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
2815 sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
2820 sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
2821 p = Nullch; /* break out */
2825 * BEFORE pushing libdir onto @INC we may first push version- and
2826 * archname-specific sub-directories.
2829 struct stat tmpstatbuf;
2834 if ((unix = tounixspec_ts(SvPV(libdir,len),Nullch)) != Nullch) {
2836 while (unix[len-1] == '/') len--; /* Cosmetic */
2837 sv_usepvn(libdir,unix,len);
2840 PerlIO_printf(PerlIO_stderr(),
2841 "Failed to unixify @INC element \"%s\"\n",
2844 /* .../archname/version if -d .../archname/version/auto */
2845 sv_setsv(subdir, libdir);
2846 sv_catpv(subdir, PL_archpat_auto);
2847 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2848 S_ISDIR(tmpstatbuf.st_mode))
2849 av_push(GvAVn(PL_incgv),
2850 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2852 /* .../archname if -d .../archname/auto */
2853 sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
2854 strlen(PL_patchlevel) + 1, "", 0);
2855 if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
2856 S_ISDIR(tmpstatbuf.st_mode))
2857 av_push(GvAVn(PL_incgv),
2858 newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
2861 /* finally push this lib directory on the end of @INC */
2862 av_push(GvAVn(PL_incgv), libdir);
2867 STATIC struct perl_thread *
2870 struct perl_thread *thr;
2873 Newz(53, thr, 1, struct perl_thread);
2874 PL_curcop = &PL_compiling;
2875 thr->cvcache = newHV();
2876 thr->threadsv = newAV();
2877 /* thr->threadsvp is set when find_threadsv is called */
2878 thr->specific = newAV();
2879 thr->errhv = newHV();
2880 thr->flags = THRf_R_JOINABLE;
2881 MUTEX_INIT(&thr->mutex);
2882 /* Handcraft thrsv similarly to mess_sv */
2883 New(53, PL_thrsv, 1, SV);
2884 Newz(53, xpv, 1, XPV);
2885 SvFLAGS(PL_thrsv) = SVt_PV;
2886 SvANY(PL_thrsv) = (void*)xpv;
2887 SvREFCNT(PL_thrsv) = 1 << 30; /* practically infinite */
2888 SvPVX(PL_thrsv) = (char*)thr;
2889 SvCUR_set(PL_thrsv, sizeof(thr));
2890 SvLEN_set(PL_thrsv, sizeof(thr));
2891 *SvEND(PL_thrsv) = '\0'; /* in the trailing_nul field */
2892 thr->oursv = PL_thrsv;
2893 PL_chopset = " \n-";
2896 MUTEX_LOCK(&PL_threads_mutex);
2901 MUTEX_UNLOCK(&PL_threads_mutex);
2903 #ifdef HAVE_THREAD_INTERN
2904 init_thread_intern(thr);
2907 #ifdef SET_THREAD_SELF
2908 SET_THREAD_SELF(thr);
2910 thr->self = pthread_self();
2911 #endif /* SET_THREAD_SELF */
2915 * These must come after the SET_THR because sv_setpvn does
2916 * SvTAINT and the taint fields require dTHR.
2918 PL_toptarget = NEWSV(0,0);
2919 sv_upgrade(PL_toptarget, SVt_PVFM);
2920 sv_setpvn(PL_toptarget, "", 0);
2921 PL_bodytarget = NEWSV(0,0);
2922 sv_upgrade(PL_bodytarget, SVt_PVFM);
2923 sv_setpvn(PL_bodytarget, "", 0);
2924 PL_formtarget = PL_bodytarget;
2925 thr->errsv = newSVpv("", 0);
2926 (void) find_threadsv("@"); /* Ensure $@ is initialised early */
2929 PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
2930 PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
2932 PL_reginterp_cnt = 0;
2936 #endif /* USE_THREADS */
2939 call_list(I32 oldscope, AV *paramList)
2942 line_t oldline = PL_curcop->cop_line;
2947 while (AvFILL(paramList) >= 0) {
2948 CV *cv = (CV*)av_shift(paramList);
2956 PUSHMARK(PL_stack_sp);
2957 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2958 (void)SvPV(atsv, len);
2961 PL_curcop = &PL_compiling;
2962 PL_curcop->cop_line = oldline;
2963 if (paramList == PL_beginav)
2964 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2966 sv_catpv(atsv, "END failed--cleanup aborted");
2967 while (PL_scopestack_ix > oldscope)
2969 croak("%s", SvPVX(atsv));
2977 /* my_exit() was called */
2978 while (PL_scopestack_ix > oldscope)
2981 PL_curstash = PL_defstash;
2983 call_list(oldscope, PL_endav);
2985 PL_curcop = &PL_compiling;
2986 PL_curcop->cop_line = oldline;
2987 if (PL_statusvalue) {
2988 if (paramList == PL_beginav)
2989 croak("BEGIN failed--compilation aborted");
2991 croak("END failed--cleanup aborted");
2996 if (!PL_restartop) {
2997 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
3002 PL_curcop = &PL_compiling;
3003 PL_curcop->cop_line = oldline;
3015 DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
3016 thr, (unsigned long) status));
3025 STATUS_NATIVE_SET(status);
3032 my_failure_exit(void)
3035 if (vaxc$errno & 1) {
3036 if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
3037 STATUS_NATIVE_SET(44);
3040 if (!vaxc$errno && errno) /* unlikely */
3041 STATUS_NATIVE_SET(44);
3043 STATUS_NATIVE_SET(vaxc$errno);
3048 STATUS_POSIX_SET(errno);
3050 exitstatus = STATUS_POSIX >> 8;
3051 if (exitstatus & 255)
3052 STATUS_POSIX_SET(exitstatus);
3054 STATUS_POSIX_SET(255);
3064 register PERL_CONTEXT *cx;
3069 SvREFCNT_dec(PL_e_script);
3070 PL_e_script = Nullsv;
3073 POPSTACK_TO(PL_mainstack);
3074 if (cxstack_ix >= 0) {
3077 POPBLOCK(cx,PL_curpm);
3086 #endif /* PERL_OBJECT */
3092 read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
3094 read_e_script(int idx, SV *buf_sv, int maxlen)
3098 p = SvPVX(PL_e_script);
3099 nl = strchr(p, '\n');
3100 nl = (nl) ? nl+1 : SvEND(PL_e_script);
3102 filter_del(read_e_script);
3105 sv_catpvn(buf_sv, p, nl-p);
3106 sv_chop(PL_e_script, nl);