3 * Copyright (c) 1987-1996 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 dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n";
31 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
41 curcop = &compiling; \
48 laststype = OP_STAT; \
50 maxsysfd = MAXSYSFD; \
57 laststype = OP_STAT; \
60 static void find_beginning _((void));
61 static void forbid_setid _((char *));
62 static void incpush _((char *));
63 static void init_ids _((void));
64 static void init_debugger _((void));
65 static void init_lexer _((void));
66 static void init_main_stash _((void));
67 static void init_perllib _((void));
68 static void init_postdump_symbols _((int, char **, char **));
69 static void init_predump_symbols _((void));
70 static void init_stacks _((void));
71 static void nuke_stacks _((void));
72 static void open_script _((char *, bool, SV *));
73 static void usage _((char *));
74 static void validate_suid _((char *, char*));
76 static int fdscript = -1;
81 PerlInterpreter *sv_interp;
84 New(53, sv_interp, 1, PerlInterpreter);
89 perl_construct( sv_interp )
90 register PerlInterpreter *sv_interp;
92 if (!(curinterp = sv_interp))
96 Zero(sv_interp, 1, PerlInterpreter);
99 /* Init the real globals? */
101 linestr = NEWSV(65,80);
102 sv_upgrade(linestr,SVt_PVIV);
104 if (!SvREADONLY(&sv_undef)) {
105 SvREADONLY_on(&sv_undef);
109 SvREADONLY_on(&sv_no);
111 sv_setpv(&sv_yes,Yes);
113 SvREADONLY_on(&sv_yes);
116 nrs = newSVpv("\n", 1);
117 rs = SvREFCNT_inc(nrs);
123 * There is no way we can refer to them from Perl so close them to save
124 * space. The other alternative would be to provide STDAUX and STDPRN
127 (void)fclose(stdaux);
128 (void)fclose(stdprn);
134 perl_destruct_level = 1;
136 if(perl_destruct_level > 0)
142 SET_NUMERIC_STANDARD();
143 #if defined(SUBVERSION) && SUBVERSION > 0
144 sprintf(patchlevel, "%7.5f", (double) 5
145 + ((double) PATCHLEVEL / (double) 1000)
146 + ((double) SUBVERSION / (double) 100000));
148 sprintf(patchlevel, "%5.3f", (double) 5 +
149 ((double) PATCHLEVEL / (double) 1000));
152 #if defined(LOCAL_PATCH_COUNT)
153 localpatches = local_patches; /* For possible -v */
156 PerlIO_init(); /* Hook to IO system */
158 fdpid = newAV(); /* for remembering popen pids by fd */
165 perl_destruct(sv_interp)
166 register PerlInterpreter *sv_interp;
168 int destruct_level; /* 0=none, 1=full, 2=full with checks */
172 if (!(curinterp = sv_interp))
175 destruct_level = perl_destruct_level;
179 if (s = getenv("PERL_DESTRUCT_LEVEL")) {
181 if (destruct_level < i)
187 /* unhook hooks which will soon be, or use, destroyed data */
188 SvREFCNT_dec(warnhook);
190 SvREFCNT_dec(diehook);
192 SvREFCNT_dec(parsehook);
198 /* We must account for everything. First the syntax tree. */
200 curpad = AvARRAY(comppad);
206 * Try to destruct global references. We do this first so that the
207 * destructors and destructees still exist. Some sv's might remain.
208 * Non-referenced objects are on their own.
215 if (destruct_level == 0){
217 DEBUG_P(debprofdump());
219 /* The exit() function will do everything that needs doing. */
223 /* loosen bonds of global variables */
226 (void)PerlIO_close(rsfp);
230 /* Filters for program text */
231 SvREFCNT_dec(rsfp_filters);
232 rsfp_filters = Nullav;
244 sawampersand = FALSE; /* must save all match strings */
245 sawstudy = FALSE; /* do fbm_instr on all strings */
260 /* magical thingies */
262 Safefree(ofs); /* $, */
265 Safefree(ors); /* $\ */
268 SvREFCNT_dec(nrs); /* $\ helper */
271 multiline = 0; /* $* */
273 SvREFCNT_dec(statname);
277 /* defgv, aka *_ should be taken care of elsewhere */
279 #if 0 /* just about all regexp stuff, seems to be ok */
281 /* shortcuts to regexp stuff */
286 SAVEFREEOP(oldlastpm); /* for saving regexp context during debugger */
288 regprecomp = NULL; /* uncompiled string. */
289 regparse = NULL; /* Input-scan pointer. */
290 regxend = NULL; /* End of input for compile */
291 regnpar = 0; /* () count. */
292 regcode = NULL; /* Code-emit pointer; ®dummy = don't. */
293 regsize = 0; /* Code size. */
294 regnaughty = 0; /* How bad is this pattern? */
295 regsawback = 0; /* Did we see \1, ...? */
297 reginput = NULL; /* String-input pointer. */
298 regbol = NULL; /* Beginning of input, for ^ check. */
299 regeol = NULL; /* End of input, for $ check. */
300 regstartp = (char **)NULL; /* Pointer to startp array. */
301 regendp = (char **)NULL; /* Ditto for endp. */
302 reglastparen = 0; /* Similarly for lastparen. */
303 regtill = NULL; /* How far we are required to go. */
304 regflags = 0; /* are we folding, multilining? */
305 regprev = (char)NULL; /* char before regbol, \n if none */
309 /* clean up after study() */
310 SvREFCNT_dec(lastscream);
312 Safefree(screamfirst);
314 Safefree(screamnext);
317 /* startup and shutdown function lists */
318 SvREFCNT_dec(beginav);
323 /* temp stack during pp_sort() */
324 SvREFCNT_dec(sortstack);
327 /* shortcuts just get cleared */
337 /* reset so print() ends up where we expect */
340 /* Prepare to destruct main symbol table. */
347 if (destruct_level >= 2) {
348 if (scopestack_ix != 0)
349 warn("Unbalanced scopes: %d more ENTERs than LEAVEs\n", scopestack_ix);
350 if (savestack_ix != 0)
351 warn("Unbalanced saves: %d more saves than restores\n", savestack_ix);
352 if (tmps_floor != -1)
353 warn("Unbalanced tmps: %d more allocs than frees\n", tmps_floor + 1);
354 if (cxstack_ix != -1)
355 warn("Unbalanced context: %d more PUSHes than POPs\n", cxstack_ix + 1);
358 /* Now absolutely destruct everything, somehow or other, loops or no. */
360 SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */
361 while (sv_count != 0 && sv_count != last_sv_count) {
362 last_sv_count = sv_count;
365 SvFLAGS(strtab) &= ~SVTYPEMASK;
366 SvFLAGS(strtab) |= SVt_PVHV;
368 /* Destruct the global string table. */
370 /* Yell and reset the HeVAL() slots that are still holding refcounts,
371 * so that sv_free() won't fail on them.
380 array = HvARRAY(strtab);
384 warn("Unbalanced string table refcount: (%d) for \"%s\"",
385 HeVAL(hent) - Nullsv, HeKEY(hent));
386 HeVAL(hent) = Nullsv;
396 SvREFCNT_dec(strtab);
399 warn("Scalars leaked: %d\n", sv_count);
403 /* No SVs have survived, need to clean out */
407 Safefree(origfilename);
409 hints = 0; /* Reset hints. Should hints be per-interpreter ? */
411 DEBUG_P(debprofdump());
416 PerlInterpreter *sv_interp;
418 if (!(curinterp = sv_interp))
422 #if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
423 char *getenv _((char *)); /* Usually in <stdlib.h> */
427 perl_parse(sv_interp, xsinit, argc, argv, env)
428 PerlInterpreter *sv_interp;
429 void (*xsinit)_((void));
436 char *scriptname = NULL;
437 VOL bool dosearch = FALSE;
441 #ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
444 croak("suidperl is no longer needed since the kernel can now execute\n\
445 setuid perl scripts securely.\n");
449 if (!(curinterp = sv_interp))
452 #if defined(NeXT) && defined(__DYNAMIC__)
453 _dyld_lookup_and_bind
454 ("__environ", (unsigned long *) &environ_pointer, NULL);
459 #ifndef VMS /* VMS doesn't have environ array */
460 origenviron = environ;
466 /* Come here if running an undumped a.out. */
468 origfilename = savepv(argv[0]);
470 cxstack_ix = -1; /* start label stack again */
472 init_postdump_symbols(argc,argv,env);
480 switch (Sigsetjmp(top_env,1)) {
491 return(statusvalue); /* my_exit() was called */
493 PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
497 sv_setpvn(linestr,"",0);
498 sv = newSVpv("",0); /* first used for -I flags */
501 for (argc--,argv++; argc > 0; argc--,argv++) {
502 if (argv[0][0] != '-' || !argv[0][1])
506 validarg = " PHOOEY ";
532 if (s = moreswitches(s))
537 if (euid != uid || egid != gid)
538 croak("No -e allowed in setuid scripts");
540 e_tmpname = savepv(TMPPATH);
541 (void)mktemp(e_tmpname);
543 croak("Can't mktemp()");
544 e_fp = PerlIO_open(e_tmpname,"w");
546 croak("Cannot open temporary file");
551 PerlIO_puts(e_fp,argv[1]);
555 croak("No code specified for -e");
556 (void)PerlIO_putc(e_fp,'\n');
564 av_push(GvAVn(incgv),newSVpv(s,0));
567 av_push(GvAVn(incgv),newSVpv(argv[1],0));
568 sv_catpv(sv,argv[1]);
585 preambleav = newAV();
586 av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
588 Sv = newSVpv("print myconfig();",0);
590 sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
592 sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
594 #if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY)
595 strcpy(buf,"\" Compile-time options:");
597 strcat(buf," DEBUGGING");
600 strcat(buf," NOEMBED");
603 strcat(buf," MULTIPLICITY");
605 strcat(buf,"\\n\",");
608 #if defined(LOCAL_PATCH_COUNT)
609 if (LOCAL_PATCH_COUNT > 0)
611 sv_catpv(Sv,"print \" Locally applied patches:\\n\",");
612 for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
613 if (localpatches[i]) {
614 sprintf(buf,"\" \\t%s\\n\",",localpatches[i]);
620 sprintf(buf,"\" Built under %s\\n\",",OSNAME);
624 sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
626 sprintf(buf,"\" Compiled on %s\\n\"",__DATE__);
630 sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\"");
633 Sv = newSVpv("config_vars(qw(",0);
638 av_push(preambleav, Sv);
639 scriptname = BIT_BUCKET; /* don't look for script or read stdin */
653 croak("Unrecognized switch: -%s",s);
658 scriptname = argv[0];
660 if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp))
661 croak("Can't write to temp file for -e: %s", Strerror(errno));
664 scriptname = e_tmpname;
666 else if (scriptname == Nullch) {
668 if ( isatty(PerlIO_fileno(PerlIO_stdin())) )
676 open_script(scriptname,dosearch,sv);
678 validate_suid(validarg, scriptname);
683 compcv = (CV*)NEWSV(1104,0);
684 sv_upgrade((SV *)compcv, SVt_PVCV);
688 av_push(comppad, Nullsv);
689 curpad = AvARRAY(comppad);
690 comppad_name = newAV();
691 comppad_name_fill = 0;
692 min_intro_pending = 0;
695 comppadlist = newAV();
696 AvREAL_off(comppadlist);
697 av_store(comppadlist, 0, (SV*)comppad_name);
698 av_store(comppadlist, 1, (SV*)comppad);
699 CvPADLIST(compcv) = comppadlist;
701 boot_core_UNIVERSAL();
703 (*xsinit)(); /* in case linked C routines want magical variables */
708 init_predump_symbols();
710 init_postdump_symbols(argc,argv,env);
714 /* now parse the script */
717 if (yyparse() || error_count) {
719 croak("%s had compilation errors.\n", origfilename);
721 croak("Execution of %s aborted due to compilation errors.\n",
725 curcop->cop_line = 0;
729 (void)UNLINK(e_tmpname);
734 /* now that script is parsed, we can modify record separator */
736 rs = SvREFCNT_inc(nrs);
737 sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs);
748 #ifdef DEBUGGING_MSTATS
749 if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
750 dump_mstats("after compilation:");
760 PerlInterpreter *sv_interp;
762 if (!(curinterp = sv_interp))
764 switch (Sigsetjmp(top_env,1)) {
766 cxstack_ix = -1; /* start context stack again */
773 #ifdef DEBUGGING_MSTATS
774 if (getenv("PERL_DEBUG_MSTATS"))
775 dump_mstats("after execution: ");
777 return(statusvalue); /* my_exit() was called */
780 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
784 if (curstack != mainstack) {
786 SWITCHSTACK(curstack, mainstack);
791 DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n",
792 sawampersand ? "Enabling" : "Omitting"));
796 DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
799 PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename);
802 if (perldb && DBsingle)
803 sv_setiv(DBsingle, 1);
813 else if (main_start) {
826 register CONTEXT *cx;
830 statusvalue = FIXSTATUS(status);
831 if (cxstack_ix >= 0) {
837 Siglongjmp(top_env, 2);
841 perl_get_sv(name, create)
845 GV* gv = gv_fetchpv(name, create, SVt_PV);
852 perl_get_av(name, create)
856 GV* gv = gv_fetchpv(name, create, SVt_PVAV);
865 perl_get_hv(name, create)
869 GV* gv = gv_fetchpv(name, create, SVt_PVHV);
878 perl_get_cv(name, create)
882 GV* gv = gv_fetchpv(name, create, SVt_PVCV);
883 if (create && !GvCVu(gv))
884 return newSUB(start_subparse(0),
885 newSVOP(OP_CONST, 0, newSVpv(name,0)),
893 /* Be sure to refetch the stack pointer after calling these routines. */
896 perl_call_argv(subname, flags, argv)
898 I32 flags; /* See G_* flags in cop.h */
899 register char **argv; /* null terminated arg list */
906 XPUSHs(sv_2mortal(newSVpv(*argv,0)));
911 return perl_call_pv(subname, flags);
915 perl_call_pv(subname, flags)
916 char *subname; /* name of the subroutine */
917 I32 flags; /* See G_* flags in cop.h */
919 return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags);
923 perl_call_method(methname, flags)
924 char *methname; /* name of the subroutine */
925 I32 flags; /* See G_* flags in cop.h */
931 XPUSHs(sv_2mortal(newSVpv(methname,0)));
934 return perl_call_sv(*stack_sp--, flags);
937 /* May be called with any of a CV, a GV, or an SV containing the name. */
939 perl_call_sv(sv, flags)
941 I32 flags; /* See G_* flags in cop.h */
943 LOGOP myop; /* fake syntax tree node */
945 I32 oldmark = TOPMARK;
951 if (flags & G_DISCARD) {
961 oldscope = scopestack_ix;
963 if (!(flags & G_NOARGS))
964 myop.op_flags = OPf_STACKED;
965 myop.op_next = Nullop;
966 myop.op_flags |= OPf_KNOW;
968 myop.op_flags |= OPf_LIST;
970 if (perldb && curstash != debstash
971 /* Handle first BEGIN of -d. */
972 && (DBcv || (DBcv = GvCV(DBsub)))
973 /* Try harder, since this may have been a sighandler, thus
974 * curstash may be meaningless. */
975 && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash))
976 op->op_private |= OPpENTERSUB_DB;
978 if (flags & G_EVAL) {
979 Copy(top_env, oldtop, 1, Sigjmp_buf);
981 cLOGOP->op_other = op;
983 /* we're trying to emulate pp_entertry() here */
985 register CONTEXT *cx;
991 push_return(op->op_next);
992 PUSHBLOCK(cx, CXt_EVAL, stack_sp);
994 eval_root = op; /* Only needed so that goto works right. */
997 if (flags & G_KEEPERR)
1000 sv_setpv(GvSV(errgv),"");
1005 switch (Sigsetjmp(top_env,1)) {
1010 statusvalue = 255; /* XXX I don't think we use 1 anymore. */
1016 /* my_exit() was called */
1017 curstash = defstash;
1019 Copy(oldtop, top_env, 1, Sigjmp_buf);
1021 croak("Callback called exit");
1022 my_exit(statusvalue);
1030 stack_sp = stack_base + oldmark;
1031 if (flags & G_ARRAY)
1035 *++stack_sp = &sv_undef;
1041 if (op == (OP*)&myop)
1045 retval = stack_sp - (stack_base + oldmark);
1046 if ((flags & G_EVAL) && !(flags & G_KEEPERR))
1047 sv_setpv(GvSV(errgv),"");
1050 if (flags & G_EVAL) {
1051 if (scopestack_ix > oldscope) {
1055 register CONTEXT *cx;
1064 Copy(oldtop, top_env, 1, Sigjmp_buf);
1066 if (flags & G_DISCARD) {
1067 stack_sp = stack_base + oldmark;
1075 /* Eval a string. The G_EVAL flag is always assumed. */
1078 perl_eval_sv(sv, flags)
1080 I32 flags; /* See G_* flags in cop.h */
1082 UNOP myop; /* fake syntax tree node */
1084 I32 oldmark = sp - stack_base;
1089 if (flags & G_DISCARD) {
1097 EXTEND(stack_sp, 1);
1099 oldscope = scopestack_ix;
1101 if (!(flags & G_NOARGS))
1102 myop.op_flags = OPf_STACKED;
1103 myop.op_next = Nullop;
1104 myop.op_type = OP_ENTEREVAL;
1105 myop.op_flags |= OPf_KNOW;
1106 if (flags & G_KEEPERR)
1107 myop.op_flags |= OPf_SPECIAL;
1108 if (flags & G_ARRAY)
1109 myop.op_flags |= OPf_LIST;
1111 Copy(top_env, oldtop, 1, Sigjmp_buf);
1114 switch (Sigsetjmp(top_env,1)) {
1119 statusvalue = 255; /* XXX I don't think we use 1 anymore. */
1125 /* my_exit() was called */
1126 curstash = defstash;
1128 Copy(oldtop, top_env, 1, Sigjmp_buf);
1130 croak("Callback called exit");
1131 my_exit(statusvalue);
1139 stack_sp = stack_base + oldmark;
1140 if (flags & G_ARRAY)
1144 *++stack_sp = &sv_undef;
1149 if (op == (OP*)&myop)
1150 op = pp_entereval();
1153 retval = stack_sp - (stack_base + oldmark);
1154 if (!(flags & G_KEEPERR))
1155 sv_setpv(GvSV(errgv),"");
1158 Copy(oldtop, top_env, 1, Sigjmp_buf);
1159 if (flags & G_DISCARD) {
1160 stack_sp = stack_base + oldmark;
1168 /* Require a module. */
1174 SV* sv = sv_newmortal();
1175 sv_setpv(sv, "require '");
1178 perl_eval_sv(sv, G_DISCARD);
1182 magicname(sym,name,namlen)
1189 if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
1190 sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
1194 # define PERLLIB_SEP ';'
1197 # define PERLLIB_SEP '|'
1199 # define PERLLIB_SEP ':'
1202 #ifndef PERLLIB_MANGLE
1203 # define PERLLIB_MANGLE(s,n) (s)
1215 /* Break at all separators */
1217 /* First, skip any consecutive separators */
1218 while ( *p == PERLLIB_SEP ) {
1219 /* Uncomment the next line for PATH semantics */
1220 /* av_push(GvAVn(incgv), newSVpv(".", 1)); */
1223 if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
1224 av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, (STRLEN)(s - p)),
1228 av_push(GvAVn(incgv), newSVpv(PERLLIB_MANGLE(p, 0), 0));
1235 usage(name) /* XXX move this out into a module ? */
1238 /* This message really ought to be max 23 lines.
1239 * Removed -h because the user already knows that opton. Others? */
1240 printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
1241 printf("\n -0[octal] specify record separator (\\0, if no argument)");
1242 printf("\n -a autosplit mode with -n or -p (splits $_ into @F)");
1243 printf("\n -c check syntax only (runs BEGIN and END blocks)");
1244 printf("\n -d[:debugger] run scripts under debugger");
1245 printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)");
1246 printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile].");
1247 printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional.");
1248 printf("\n -i[extension] edit <> files in place (make backup if extension supplied)");
1249 printf("\n -Idirectory specify @INC/#include directory (may be used more then once)");
1250 printf("\n -l[octal] enable line ending processing, specifies line teminator");
1251 printf("\n -[mM][-]module.. executes `use/no module...' before executing your script.");
1252 printf("\n -n assume 'while (<>) { ... }' loop arround your script");
1253 printf("\n -p assume loop like -n but print line also like sed");
1254 printf("\n -P run script through C preprocessor before compilation");
1255 printf("\n -s enable some switch parsing for switches after script name");
1256 printf("\n -S look for the script using PATH environment variable");
1257 printf("\n -T turn on tainting checks");
1258 printf("\n -u dump core after parsing script");
1259 printf("\n -U allow unsafe operations");
1260 printf("\n -v print version number and patchlevel of perl");
1261 printf("\n -V[:variable] print perl configuration information");
1262 printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT.");
1263 printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n");
1266 /* This routine handles any switches that can be given during run */
1277 rschar = scan_oct(s, 4, &numlen);
1279 if (rschar & ~((U8)~0))
1281 else if (!rschar && numlen >= 2)
1282 nrs = newSVpv("", 0);
1285 nrs = newSVpv(&ch, 1);
1290 splitstr = savepv(s + 1);
1304 if (*s == ':' || *s == '=') {
1305 sprintf(buf, "use Devel::%s;", ++s);
1307 my_setenv("PERL5DB",buf);
1317 if (isALPHA(s[1])) {
1318 static char debopts[] = "psltocPmfrxuLHXD";
1321 for (s++; *s && (d = strchr(debopts,*s)); s++)
1322 debug |= 1 << (d - debopts);
1326 for (s++; isDIGIT(*s); s++) ;
1328 debug |= 0x80000000;
1330 warn("Recompile perl with -DDEBUGGING to use -D switch\n");
1331 for (s++; isALNUM(*s); s++) ;
1341 inplace = savepv(s+1);
1343 for (s = inplace; *s && !isSPACE(*s); s++) ;
1350 for (e = s; *e && !isSPACE(*e); e++) ;
1351 av_push(GvAVn(incgv),newSVpv(s,e-s));
1356 croak("No space allowed after -I");
1366 *ors = scan_oct(s, 3 + (*s == '0'), &numlen);
1375 ors = SvPV(nrs, orslen);
1376 ors = savepvn(ors, orslen);
1380 forbid_setid("-M"); /* XXX ? */
1383 forbid_setid("-m"); /* XXX ? */
1387 /* -M-foo == 'no foo' */
1388 if (*s == '-') { use = "no "; ++s; }
1389 Sv = newSVpv(use,0);
1391 /* We allow -M'Module qw(Foo Bar)' */
1392 while(isALNUM(*s) || *s==':') ++s;
1394 sv_catpv(Sv, start);
1395 if (*(start-1) == 'm') {
1397 croak("Can't use '%c' after -mname", *s);
1398 sv_catpv( Sv, " ()");
1401 sv_catpvn(Sv, start, s-start);
1402 sv_catpv(Sv, " split(/,/,q{");
1407 if (preambleav == NULL)
1408 preambleav = newAV();
1409 av_push(preambleav, Sv);
1412 croak("No space allowed after -%c", *(s-1));
1440 #if defined(SUBVERSION) && SUBVERSION > 0
1441 printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION);
1443 printf("\nThis is perl, version %s",patchlevel);
1446 printf("\n\nCopyright 1987-1997, Larry Wall\n");
1447 printf("\n\t+ suidperl security patch");
1449 printf("\n\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
1452 printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
1455 printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
1456 "Version 5 port Copyright (c) 1994-1996, Andreas Kaiser, Ilya Zakharevich\n");
1459 printf("atariST series port, ++jrb bammi@cadence.com\n");
1462 Perl may be copied only under the terms of either the Artistic License or the\n\
1463 GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n");
1471 if (s[1] == '-') /* Additional switches on #! line. */
1484 croak("Can't emulate -%.1s on #! line",s);
1489 /* compliments of Tom Christiansen */
1491 /* unexec() can be found in the Gnu emacs distribution */
1500 sprintf (buf, "%s.perldump", origfilename);
1501 sprintf (tokenbuf, "%s/perl", BIN);
1503 status = unexec(buf, tokenbuf, &etext, sbrk(0), 0);
1505 PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf);
1509 # include <lib$routines.h>
1510 lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
1512 ABORT(); /* for use with undump */
1522 /* Note that strtab is a rather special HV. Assumptions are made
1523 about not iterating on it, and not adding tie magic to it.
1524 It is properly deallocated in perl_destruct() */
1526 HvSHAREKEYS_off(strtab); /* mandatory */
1527 Newz(506,((XPVHV*)SvANY(strtab))->xhv_array,
1528 sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char);
1530 curstash = defstash = newHV();
1531 curstname = newSVpv("main",4);
1532 gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
1533 SvREFCNT_dec(GvHV(gv));
1534 GvHV(gv) = (HV*)SvREFCNT_inc(defstash);
1536 HvNAME(defstash) = savepv("main");
1537 incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
1539 defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
1540 errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
1542 sv_setpvn(GvSV(errgv), "", 0);
1543 curstash = defstash;
1544 compiling.cop_stash = defstash;
1545 debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
1546 /* We must init $/ before switches are processed. */
1547 sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
1550 #ifdef CAN_PROTOTYPE
1552 open_script(char *scriptname, bool dosearch, SV *sv)
1555 open_script(scriptname,dosearch,sv)
1561 char *xfound = Nullch;
1562 char *xfailed = Nullch;
1566 #if defined(DOSISH) && !defined(OS2) && !defined(atarist)
1567 #define SEARCH_EXTS ".bat", ".cmd", NULL
1570 # define SEARCH_EXTS ".pl", ".com", NULL
1572 /* additional extensions to try in each dir if scriptname not found */
1574 char *ext[] = { SEARCH_EXTS };
1575 int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */
1580 int hasdir, idx = 0, deftypes = 1;
1582 hasdir = (strpbrk(scriptname,":[</") != Nullch) ;
1583 /* The first time through, just add SEARCH_EXTS to whatever we
1584 * already have, so we can check for default file types. */
1585 while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) {
1586 if (deftypes) { deftypes = 0; *tokenbuf = '\0'; }
1587 strcat(tokenbuf,scriptname);
1589 if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) {
1591 bufend = s + strlen(s);
1594 s = cpytill(tokenbuf,s,bufend,':',&len);
1597 for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++);
1598 tokenbuf[len] = '\0';
1600 for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++);
1601 tokenbuf[len] = '\0';
1607 if (len && tokenbuf[len-1] != '/')
1610 if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/')))
1612 if (len && tokenbuf[len-1] != '\\')
1615 (void)strcat(tokenbuf+len,"/");
1616 (void)strcat(tokenbuf+len,scriptname);
1620 len = strlen(tokenbuf);
1621 if (extidx > 0) /* reset after previous loop */
1625 DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf));
1626 retval = Stat(tokenbuf,&statbuf);
1628 } while ( retval < 0 /* not there */
1629 && extidx>=0 && ext[extidx] /* try an extension? */
1630 && strcpy(tokenbuf+len, ext[extidx++])
1635 if (S_ISREG(statbuf.st_mode)
1636 && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) {
1637 xfound = tokenbuf; /* bingo! */
1641 xfailed = savepv(tokenbuf);
1644 croak("Can't execute %s", xfailed ? xfailed : scriptname );
1647 scriptname = xfound;
1650 if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
1651 char *s = scriptname + 8;
1660 origfilename = savepv(e_tmpname ? "-e" : scriptname);
1661 curcop->cop_filegv = gv_fetchfile(origfilename);
1662 if (strEQ(origfilename,"-"))
1664 if (fdscript >= 0) {
1665 rsfp = PerlIO_fdopen(fdscript,"r");
1666 #if defined(HAS_FCNTL) && defined(F_SETFD)
1668 fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */
1671 else if (preprocess) {
1672 char *cpp = CPPSTDIN;
1674 if (strEQ(cpp,"cppstdin"))
1675 sprintf(tokenbuf, "%s/%s", SCRIPTDIR, cpp);
1677 sprintf(tokenbuf, "%s", cpp);
1679 sv_catpv(sv,PRIVLIB_EXP);
1681 (void)sprintf(buf, "\
1682 sed %s -e \"/^[^#]/b\" \
1683 -e \"/^#[ ]*include[ ]/b\" \
1684 -e \"/^#[ ]*define[ ]/b\" \
1685 -e \"/^#[ ]*if[ ]/b\" \
1686 -e \"/^#[ ]*ifdef[ ]/b\" \
1687 -e \"/^#[ ]*ifndef[ ]/b\" \
1688 -e \"/^#[ ]*else/b\" \
1689 -e \"/^#[ ]*elif[ ]/b\" \
1690 -e \"/^#[ ]*undef[ ]/b\" \
1691 -e \"/^#[ ]*endif/b\" \
1694 (doextract ? "-e \"1,/^#/d\n\"" : ""),
1696 (void)sprintf(buf, "\
1697 %s %s -e '/^[^#]/b' \
1698 -e '/^#[ ]*include[ ]/b' \
1699 -e '/^#[ ]*define[ ]/b' \
1700 -e '/^#[ ]*if[ ]/b' \
1701 -e '/^#[ ]*ifdef[ ]/b' \
1702 -e '/^#[ ]*ifndef[ ]/b' \
1703 -e '/^#[ ]*else/b' \
1704 -e '/^#[ ]*elif[ ]/b' \
1705 -e '/^#[ ]*undef[ ]/b' \
1706 -e '/^#[ ]*endif/b' \
1714 (doextract ? "-e '1,/^#/d\n'" : ""),
1716 scriptname, tokenbuf, SvPV(sv, na), CPPMINUS);
1718 #ifdef IAMSUID /* actually, this is caught earlier */
1719 if (euid != uid && !euid) { /* if running suidperl */
1721 (void)seteuid(uid); /* musn't stay setuid root */
1724 (void)setreuid((Uid_t)-1, uid);
1726 #ifdef HAS_SETRESUID
1727 (void)setresuid((Uid_t)-1, uid, (Uid_t)-1);
1733 if (geteuid() != uid)
1734 croak("Can't do seteuid!\n");
1736 #endif /* IAMSUID */
1737 rsfp = my_popen(buf,"r");
1739 else if (!*scriptname) {
1740 forbid_setid("program input from stdin");
1741 rsfp = PerlIO_stdin();
1744 rsfp = PerlIO_open(scriptname,"r");
1745 #if defined(HAS_FCNTL) && defined(F_SETFD)
1747 fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */
1755 #ifndef IAMSUID /* in case script is not readable before setuid */
1756 if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 &&
1757 statbuf.st_mode & (S_ISUID|S_ISGID)) {
1758 (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel);
1759 execv(buf, origargv); /* try again */
1760 croak("Can't do setuid\n");
1764 croak("Can't open perl script \"%s\": %s\n",
1765 SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno));
1770 validate_suid(validarg, scriptname)
1776 /* do we need to emulate setuid on scripts? */
1778 /* This code is for those BSD systems that have setuid #! scripts disabled
1779 * in the kernel because of a security problem. Merely defining DOSUID
1780 * in perl will not fix that problem, but if you have disabled setuid
1781 * scripts in the kernel, this will attempt to emulate setuid and setgid
1782 * on scripts that have those now-otherwise-useless bits set. The setuid
1783 * root version must be called suidperl or sperlN.NNN. If regular perl
1784 * discovers that it has opened a setuid script, it calls suidperl with
1785 * the same argv that it had. If suidperl finds that the script it has
1786 * just opened is NOT setuid root, it sets the effective uid back to the
1787 * uid. We don't just make perl setuid root because that loses the
1788 * effective uid we had before invoking perl, if it was different from the
1791 * DOSUID must be defined in both perl and suidperl, and IAMSUID must
1792 * be defined in suidperl only. suidperl must be setuid root. The
1793 * Configure script will set this up for you if you want it.
1799 if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */
1800 croak("Can't stat script \"%s\"",origfilename);
1801 if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) {
1805 #ifndef HAS_SETREUID
1806 /* On this access check to make sure the directories are readable,
1807 * there is actually a small window that the user could use to make
1808 * filename point to an accessible directory. So there is a faint
1809 * chance that someone could execute a setuid script down in a
1810 * non-accessible directory. I don't know what to do about that.
1811 * But I don't think it's too important. The manual lies when
1812 * it says access() is useful in setuid programs.
1814 if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/
1815 croak("Permission denied");
1817 /* If we can swap euid and uid, then we can determine access rights
1818 * with a simple stat of the file, and then compare device and
1819 * inode to make sure we did stat() on the same file we opened.
1820 * Then we just have to make sure he or she can execute it.
1823 struct stat tmpstatbuf;
1827 setreuid(euid,uid) < 0
1830 setresuid(euid,uid,(Uid_t)-1) < 0
1833 || getuid() != euid || geteuid() != uid)
1834 croak("Can't swap uid and euid"); /* really paranoid */
1835 if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0)
1836 croak("Permission denied"); /* testing full pathname here */
1837 if (tmpstatbuf.st_dev != statbuf.st_dev ||
1838 tmpstatbuf.st_ino != statbuf.st_ino) {
1839 (void)PerlIO_close(rsfp);
1840 if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */
1842 "User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\
1843 (Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n",
1844 uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino,
1845 statbuf.st_dev, statbuf.st_ino,
1846 SvPVX(GvSV(curcop->cop_filegv)),
1847 statbuf.st_uid, statbuf.st_gid);
1848 (void)my_pclose(rsfp);
1850 croak("Permission denied\n");
1854 setreuid(uid,euid) < 0
1856 # if defined(HAS_SETRESUID)
1857 setresuid(uid,euid,(Uid_t)-1) < 0
1860 || getuid() != uid || geteuid() != euid)
1861 croak("Can't reswap uid and euid");
1862 if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */
1863 croak("Permission denied\n");
1865 #endif /* HAS_SETREUID */
1866 #endif /* IAMSUID */
1868 if (!S_ISREG(statbuf.st_mode))
1869 croak("Permission denied");
1870 if (statbuf.st_mode & S_IWOTH)
1871 croak("Setuid/gid script is writable by world");
1872 doswitches = FALSE; /* -s is insecure in suid */
1874 if (sv_gets(linestr, rsfp, 0) == Nullch ||
1875 strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */
1876 croak("No #! line");
1877 s = SvPV(linestr,na)+2;
1879 while (!isSPACE(*s)) s++;
1880 for (s2 = s; (s2 > SvPV(linestr,na)+2 &&
1881 (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
1882 if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
1883 croak("Not a perl script");
1884 while (*s == ' ' || *s == '\t') s++;
1886 * #! arg must be what we saw above. They can invoke it by
1887 * mentioning suidperl explicitly, but they may not add any strange
1888 * arguments beyond what #! says if they do invoke suidperl that way.
1890 len = strlen(validarg);
1891 if (strEQ(validarg," PHOOEY ") ||
1892 strnNE(s,validarg,len) || !isSPACE(s[len]))
1893 croak("Args must match #! line");
1896 if (euid != uid && (statbuf.st_mode & S_ISUID) &&
1897 euid == statbuf.st_uid)
1899 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
1900 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
1901 #endif /* IAMSUID */
1903 if (euid) { /* oops, we're not the setuid root perl */
1904 (void)PerlIO_close(rsfp);
1906 (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel);
1907 execv(buf, origargv); /* try again */
1909 croak("Can't do setuid\n");
1912 if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) {
1914 (void)setegid(statbuf.st_gid);
1917 (void)setregid((Gid_t)-1,statbuf.st_gid);
1919 #ifdef HAS_SETRESGID
1920 (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1);
1922 setgid(statbuf.st_gid);
1926 if (getegid() != statbuf.st_gid)
1927 croak("Can't do setegid!\n");
1929 if (statbuf.st_mode & S_ISUID) {
1930 if (statbuf.st_uid != euid)
1932 (void)seteuid(statbuf.st_uid); /* all that for this */
1935 (void)setreuid((Uid_t)-1,statbuf.st_uid);
1937 #ifdef HAS_SETRESUID
1938 (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1);
1940 setuid(statbuf.st_uid);
1944 if (geteuid() != statbuf.st_uid)
1945 croak("Can't do seteuid!\n");
1947 else if (uid) { /* oops, mustn't run as root */
1949 (void)seteuid((Uid_t)uid);
1952 (void)setreuid((Uid_t)-1,(Uid_t)uid);
1954 #ifdef HAS_SETRESUID
1955 (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1);
1961 if (geteuid() != uid)
1962 croak("Can't do seteuid!\n");
1965 if (!cando(S_IXUSR,TRUE,&statbuf))
1966 croak("Permission denied\n"); /* they can't do this */
1969 else if (preprocess)
1970 croak("-P not allowed for setuid/setgid script\n");
1971 else if (fdscript >= 0)
1972 croak("fd script not allowed in suidperl\n");
1974 croak("Script is not setuid/setgid in suidperl\n");
1976 /* We absolutely must clear out any saved ids here, so we */
1977 /* exec the real perl, substituting fd script for scriptname. */
1978 /* (We pass script name as "subdir" of fd, which perl will grok.) */
1979 PerlIO_rewind(rsfp);
1980 lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */
1981 for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ;
1982 if (!origargv[which])
1983 croak("Permission denied");
1984 (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]);
1985 origargv[which] = buf;
1987 #if defined(HAS_FCNTL) && defined(F_SETFD)
1988 fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */
1991 (void)sprintf(tokenbuf, "%s/perl%s", BIN, patchlevel);
1992 execv(tokenbuf, origargv); /* try again */
1993 croak("Can't do setuid\n");
1994 #endif /* IAMSUID */
1996 if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */
1997 #ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
1998 Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */
1999 if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID)
2001 (egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID)
2004 croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
2005 FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
2006 #endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
2007 /* not set-id, must be wrapped */
2015 register char *s, *s2;
2017 /* skip forward in input to the real script? */
2021 if ((s = sv_gets(linestr, rsfp, 0)) == Nullch)
2022 croak("No Perl script found in input\n");
2023 if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
2024 PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */
2026 while (*s && !(isSPACE (*s) || *s == '#')) s++;
2028 while (*s == ' ' || *s == '\t') s++;
2030 while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
2031 if (strnEQ(s2-4,"perl",4))
2033 while (s = moreswitches(s)) ;
2035 if (cddir && chdir(cddir) < 0)
2036 croak("Can't chdir to %s",cddir);
2044 uid = (int)getuid();
2045 euid = (int)geteuid();
2046 gid = (int)getgid();
2047 egid = (int)getegid();
2052 tainting |= (uid && (euid != uid || egid != gid));
2060 croak("No %s allowed while running setuid", s);
2062 croak("No %s allowed while running setgid", s);
2068 curstash = debstash;
2069 dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
2071 DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
2072 DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
2073 DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
2074 DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
2075 sv_setiv(DBsingle, 0);
2076 DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
2077 sv_setiv(DBtrace, 0);
2078 DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
2079 sv_setiv(DBsignal, 0);
2080 curstash = defstash;
2087 mainstack = curstack; /* remember in case we switch stacks */
2088 AvREAL_off(curstack); /* not a real array */
2089 av_extend(curstack,127);
2091 stack_base = AvARRAY(curstack);
2092 stack_sp = stack_base;
2093 stack_max = stack_base + 127;
2095 cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */
2096 New(50,cxstack,cxstack_max + 1,CONTEXT);
2099 New(50,tmps_stack,128,SV*);
2104 New(51,debname,128,char);
2105 New(52,debdelim,128,char);
2109 * The following stacks almost certainly should be per-interpreter,
2110 * but for now they're not. XXX
2114 markstack_ptr = markstack;
2116 New(54,markstack,64,I32);
2117 markstack_ptr = markstack;
2118 markstack_max = markstack + 64;
2124 New(54,scopestack,32,I32);
2126 scopestack_max = 32;
2132 New(54,savestack,128,ANY);
2134 savestack_max = 128;
2140 New(54,retstack,16,OP*);
2150 Safefree(tmps_stack);
2157 static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
2165 subname = newSVpv("main",4);
2169 init_predump_symbols()
2174 sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1);
2176 stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
2177 GvMULTI_on(stdingv);
2178 IoIFP(GvIOp(stdingv)) = PerlIO_stdin();
2179 tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
2181 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv));
2183 tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
2185 IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
2187 tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
2189 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv));
2191 othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
2192 GvMULTI_on(othergv);
2193 IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
2194 tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
2196 GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
2198 statname = NEWSV(66,0); /* last filename we did stat on */
2201 osname = savepv(OSNAME);
2205 init_postdump_symbols(argc,argv,env)
2207 register char **argv;
2208 register char **env;
2214 argc--,argv++; /* skip name of script */
2216 for (; argc > 0 && **argv == '-'; argc--,argv++) {
2219 if (argv[0][1] == '-') {
2223 if (s = strchr(argv[0], '=')) {
2225 sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
2228 sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
2231 toptarget = NEWSV(0,0);
2232 sv_upgrade(toptarget, SVt_PVFM);
2233 sv_setpvn(toptarget, "", 0);
2234 bodytarget = NEWSV(0,0);
2235 sv_upgrade(bodytarget, SVt_PVFM);
2236 sv_setpvn(bodytarget, "", 0);
2237 formtarget = bodytarget;
2240 if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
2241 sv_setpv(GvSV(tmpgv),origfilename);
2242 magicname("0", "0", 1);
2244 if (tmpgv = gv_fetchpv("\024",TRUE, SVt_PV))
2246 if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
2247 sv_setpv(GvSV(tmpgv),origargv[0]);
2248 if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
2250 (void)gv_AVadd(argvgv);
2251 av_clear(GvAVn(argvgv));
2252 for (; argc > 0; argc--,argv++) {
2253 av_push(GvAVn(argvgv),newSVpv(argv[0],0));
2256 if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
2261 #ifndef VMS /* VMS doesn't have environ array */
2262 /* Note that if the supplied env parameter is actually a copy
2263 of the global environ then it may now point to free'd memory
2264 if the environment has been modified since. To avoid this
2265 problem we treat env==NULL as meaning 'use the default'
2269 if (env != environ) {
2270 environ[0] = Nullch;
2271 hv_magic(hv, envgv, 'E');
2273 for (; *env; env++) {
2274 if (!(s = strchr(*env,'=')))
2277 sv = newSVpv(s--,0);
2278 sv_magic(sv, sv, 'e', *env, s - *env);
2279 (void)hv_store(hv, *env, s - *env, sv, 0);
2283 #ifdef DYNAMIC_ENV_FETCH
2284 HvNAME(hv) = savepv(ENV_HV_NAME);
2286 hv_magic(hv, envgv, 'E');
2289 if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
2290 sv_setiv(GvSV(tmpgv),(I32)getpid());
2299 s = getenv("PERL5LIB");
2303 incpush(getenv("PERLLIB"));
2305 /* Treat PERL5?LIB as a possible search list logical name -- the
2306 * "natural" VMS idiom for a Unix path string. We allow each
2307 * element to be a set of |-separated directories for compatibility.
2311 if (my_trnlnm("PERL5LIB",buf,0))
2312 do { incpush(buf); } while (my_trnlnm("PERL5LIB",buf,++idx));
2314 while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf);
2318 /* Use the ~-expanded versions of APPLIB (undocumented),
2319 ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB
2322 incpush(APPLLIB_EXP);
2326 incpush(ARCHLIB_EXP);
2329 #define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
2331 incpush(PRIVLIB_EXP);
2334 incpush(SITEARCH_EXP);
2337 incpush(SITELIB_EXP);
2339 #ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */
2340 incpush(OLDARCHLIB_EXP);
2353 line_t oldline = curcop->cop_line;
2355 Copy(top_env, oldtop, 1, Sigjmp_buf);
2357 while (AvFILL(list) >= 0) {
2358 CV *cv = (CV*)av_shift(list);
2362 switch (Sigsetjmp(top_env,1)) {
2364 SV* atsv = GvSV(errgv);
2366 perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
2367 (void)SvPV(atsv, len);
2369 Copy(oldtop, top_env, 1, Sigjmp_buf);
2370 curcop = &compiling;
2371 curcop->cop_line = oldline;
2372 if (list == beginav)
2373 sv_catpv(atsv, "BEGIN failed--compilation aborted");
2375 sv_catpv(atsv, "END failed--cleanup aborted");
2376 croak("%s", SvPVX(atsv));
2382 statusvalue = 255; /* XXX I don't think we use 1 anymore. */
2388 /* my_exit() was called */
2389 curstash = defstash;
2393 Copy(oldtop, top_env, 1, Sigjmp_buf);
2394 curcop = &compiling;
2395 curcop->cop_line = oldline;
2397 if (list == beginav)
2398 croak("BEGIN failed--compilation aborted");
2400 croak("END failed--cleanup aborted");
2402 my_exit(statusvalue);
2407 PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
2411 Copy(oldtop, top_env, 1, Sigjmp_buf);
2412 curcop = &compiling;
2413 curcop->cop_line = oldline;
2414 Siglongjmp(top_env, 3);
2418 Copy(oldtop, top_env, 1, Sigjmp_buf);