-char rcsid[] = "$RCSfile: perl.c,v $$Revision: 4.0.1.4 $$Date: 91/06/10 01:23:07 $\nPatch level: ###\n";
-/*
- * Copyright (c) 1991, Larry Wall
+/* perl.c
+ *
+ * Copyright (c) 1987-1997 Larry Wall
*
* You may distribute under the terms of either the GNU General Public
* License or the Artistic License, as specified in the README file.
*
- * $Log: perl.c,v $
- * Revision 4.0.1.4 91/06/10 01:23:07 lwall
- * patch10: perl -v printed incorrect copyright notice
- *
- * Revision 4.0.1.3 91/06/07 11:40:18 lwall
- * patch4: changed old $^P to $^X
- *
- * Revision 4.0.1.2 91/06/07 11:26:16 lwall
- * patch4: new copyright notice
- * patch4: added $^P variable to control calling of perldb routines
- * patch4: added $^F variable to specify maximum system fd, default 2
- * patch4: debugger lost track of lines in eval
- *
- * Revision 4.0.1.1 91/04/11 17:49:05 lwall
- * patch1: fixed undefined environ problem
- *
- * Revision 4.0 91/03/20 01:37:44 lwall
- * 4.0 baseline.
- *
+ */
+
+/*
+ * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
*/
#include "EXTERN.h"
#include "perl.h"
-#include "perly.h"
-#ifdef MSDOS
-#include "patchlev.h"
-#else
#include "patchlevel.h"
+
+/* XXX If this causes problems, set i_unistd=undef in the hint file. */
+#ifdef I_UNISTD
+#include <unistd.h>
#endif
-char *getenv();
+dEXTCONST char rcsid[] = "perl.c\nPatch level: ###\n";
#ifdef IAMSUID
#ifndef DOSUID
#endif
#endif
-static char* moreswitches();
-static char* cddir;
-static bool minus_c;
-static char patchlevel[6];
-static char *nrs = "\n";
-static int nrschar = '\n'; /* final char of rs, or 0777 if none */
-static int nrslen = 1;
+#define I_REINIT \
+ STMT_START { \
+ chopset = " \n-"; \
+ copline = NOLINE; \
+ curcop = &compiling; \
+ curcopdb = NULL; \
+ cxstack_ix = -1; \
+ cxstack_max = 128; \
+ dbargs = 0; \
+ dlmax = 128; \
+ laststatval = -1; \
+ laststype = OP_STAT; \
+ maxscream = -1; \
+ maxsysfd = MAXSYSFD; \
+ statname = Nullsv; \
+ tmps_floor = -1; \
+ tmps_ix = -1; \
+ op_mask = NULL; \
+ dlmax = 128; \
+ laststatval = -1; \
+ laststype = OP_STAT; \
+ } STMT_END
+
+static void find_beginning _((void));
+static void forbid_setid _((char *));
+static void incpush _((char *, int));
+static void init_ids _((void));
+static void init_debugger _((void));
+static void init_lexer _((void));
+static void init_main_stash _((void));
+static void init_perllib _((void));
+static void init_postdump_symbols _((int, char **, char **));
+static void init_predump_symbols _((void));
+static void init_stacks _((void));
+static void my_exit_jump _((void)) __attribute__((noreturn));
+static void nuke_stacks _((void));
+static void open_script _((char *, bool, SV *));
+static void usage _((char *));
+static void validate_suid _((char *, char*));
+
+static int fdscript = -1;
+
+PerlInterpreter *
+perl_alloc()
+{
+ PerlInterpreter *sv_interp;
-main(argc,argv,env)
-register int argc;
-register char **argv;
-register char **env;
+ curinterp = 0;
+ New(53, sv_interp, 1, PerlInterpreter);
+ return sv_interp;
+}
+
+void
+perl_construct( sv_interp )
+register PerlInterpreter *sv_interp;
+{
+ if (!(curinterp = sv_interp))
+ return;
+
+#ifdef MULTIPLICITY
+ Zero(sv_interp, 1, PerlInterpreter);
+#endif
+
+ /* Init the real globals? */
+ if (!linestr) {
+ linestr = NEWSV(65,80);
+ sv_upgrade(linestr,SVt_PVIV);
+
+ if (!SvREADONLY(&sv_undef)) {
+ SvREADONLY_on(&sv_undef);
+
+ sv_setpv(&sv_no,No);
+ SvNV(&sv_no);
+ SvREADONLY_on(&sv_no);
+
+ sv_setpv(&sv_yes,Yes);
+ SvNV(&sv_yes);
+ SvREADONLY_on(&sv_yes);
+ }
+
+ nrs = newSVpv("\n", 1);
+ rs = SvREFCNT_inc(nrs);
+
+ pidstatus = newHV();
+
+#ifdef MSDOS
+ /*
+ * There is no way we can refer to them from Perl so close them to save
+ * space. The other alternative would be to provide STDAUX and STDPRN
+ * filehandles.
+ */
+ (void)fclose(stdaux);
+ (void)fclose(stdprn);
+#endif
+ }
+
+#ifdef MULTIPLICITY
+ I_REINIT;
+ perl_destruct_level = 1;
+#else
+ if(perl_destruct_level > 0)
+ I_REINIT;
+#endif
+
+ init_ids();
+
+ STATUS_ALL_SUCCESS;
+
+ SET_NUMERIC_STANDARD();
+#if defined(SUBVERSION) && SUBVERSION > 0
+ sprintf(patchlevel, "%7.5f", (double) 5
+ + ((double) PATCHLEVEL / (double) 1000)
+ + ((double) SUBVERSION / (double) 100000));
+#else
+ sprintf(patchlevel, "%5.3f", (double) 5 +
+ ((double) PATCHLEVEL / (double) 1000));
+#endif
+
+#if defined(LOCAL_PATCH_COUNT)
+ localpatches = local_patches; /* For possible -v */
+#endif
+
+ PerlIO_init(); /* Hook to IO system */
+
+ fdpid = newAV(); /* for remembering popen pids by fd */
+
+ init_stacks();
+ ENTER;
+}
+
+void
+perl_destruct(sv_interp)
+register PerlInterpreter *sv_interp;
+{
+ int destruct_level; /* 0=none, 1=full, 2=full with checks */
+ I32 last_sv_count;
+ HV *hv;
+
+ if (!(curinterp = sv_interp))
+ return;
+
+ destruct_level = perl_destruct_level;
+#ifdef DEBUGGING
+ {
+ char *s;
+ if (s = getenv("PERL_DESTRUCT_LEVEL")) {
+ int i = atoi(s);
+ if (destruct_level < i)
+ destruct_level = i;
+ }
+ }
+#endif
+
+ /* unhook hooks which will soon be, or use, destroyed data */
+ SvREFCNT_dec(warnhook);
+ warnhook = Nullsv;
+ SvREFCNT_dec(diehook);
+ diehook = Nullsv;
+ SvREFCNT_dec(parsehook);
+ parsehook = Nullsv;
+
+ LEAVE;
+ FREETMPS;
+
+ /* We must account for everything. */
+
+ /* Destroy the main CV and syntax tree */
+ if (main_root) {
+ curpad = AvARRAY(comppad);
+ op_free(main_root);
+ main_root = Nullop;
+ }
+ main_start = Nullop;
+ SvREFCNT_dec(main_cv);
+ main_cv = Nullcv;
+
+ if (sv_objcount) {
+ /*
+ * Try to destruct global references. We do this first so that the
+ * destructors and destructees still exist. Some sv's might remain.
+ * Non-referenced objects are on their own.
+ */
+
+ dirty = TRUE;
+ sv_clean_objs();
+ }
+
+ if (destruct_level == 0){
+
+ DEBUG_P(debprofdump());
+
+ /* The exit() function will do everything that needs doing. */
+ return;
+ }
+
+ /* loosen bonds of global variables */
+
+ if(rsfp) {
+ (void)PerlIO_close(rsfp);
+ rsfp = Nullfp;
+ }
+
+ /* Filters for program text */
+ SvREFCNT_dec(rsfp_filters);
+ rsfp_filters = Nullav;
+
+ /* switches */
+ preprocess = FALSE;
+ minus_n = FALSE;
+ minus_p = FALSE;
+ minus_l = FALSE;
+ minus_a = FALSE;
+ minus_F = FALSE;
+ doswitches = FALSE;
+ dowarn = FALSE;
+ doextract = FALSE;
+ sawampersand = FALSE; /* must save all match strings */
+ sawstudy = FALSE; /* do fbm_instr on all strings */
+ sawvec = FALSE;
+ unsafe = FALSE;
+
+ Safefree(inplace);
+ inplace = Nullch;
+
+ Safefree(e_tmpname);
+ e_tmpname = Nullch;
+
+ if (e_fp) {
+ PerlIO_close(e_fp);
+ e_fp = Nullfp;
+ }
+
+ /* magical thingies */
+
+ Safefree(ofs); /* $, */
+ ofs = Nullch;
+
+ Safefree(ors); /* $\ */
+ ors = Nullch;
+
+ SvREFCNT_dec(nrs); /* $\ helper */
+ nrs = Nullsv;
+
+ multiline = 0; /* $* */
+
+ SvREFCNT_dec(statname);
+ statname = Nullsv;
+ statgv = Nullgv;
+
+ /* defgv, aka *_ should be taken care of elsewhere */
+
+#if 0 /* just about all regexp stuff, seems to be ok */
+
+ /* shortcuts to regexp stuff */
+ leftgv = Nullgv;
+ ampergv = Nullgv;
+
+ SAVEFREEOP(curpm);
+ SAVEFREEOP(oldlastpm); /* for saving regexp context during debugger */
+
+ regprecomp = NULL; /* uncompiled string. */
+ regparse = NULL; /* Input-scan pointer. */
+ regxend = NULL; /* End of input for compile */
+ regnpar = 0; /* () count. */
+ regcode = NULL; /* Code-emit pointer; ®dummy = don't. */
+ regsize = 0; /* Code size. */
+ regnaughty = 0; /* How bad is this pattern? */
+ regsawback = 0; /* Did we see \1, ...? */
+
+ reginput = NULL; /* String-input pointer. */
+ regbol = NULL; /* Beginning of input, for ^ check. */
+ regeol = NULL; /* End of input, for $ check. */
+ regstartp = (char **)NULL; /* Pointer to startp array. */
+ regendp = (char **)NULL; /* Ditto for endp. */
+ reglastparen = 0; /* Similarly for lastparen. */
+ regtill = NULL; /* How far we are required to go. */
+ regflags = 0; /* are we folding, multilining? */
+ regprev = (char)NULL; /* char before regbol, \n if none */
+
+#endif /* if 0 */
+
+ /* clean up after study() */
+ SvREFCNT_dec(lastscream);
+ lastscream = Nullsv;
+ Safefree(screamfirst);
+ screamfirst = 0;
+ Safefree(screamnext);
+ screamnext = 0;
+
+ /* startup and shutdown function lists */
+ SvREFCNT_dec(beginav);
+ SvREFCNT_dec(endav);
+ beginav = Nullav;
+ endav = Nullav;
+
+ /* temp stack during pp_sort() */
+ SvREFCNT_dec(sortstack);
+ sortstack = Nullav;
+
+ /* shortcuts just get cleared */
+ envgv = Nullgv;
+ siggv = Nullgv;
+ incgv = Nullgv;
+ errgv = Nullgv;
+ argvgv = Nullgv;
+ argvoutgv = Nullgv;
+ stdingv = Nullgv;
+ last_in_gv = Nullgv;
+
+ /* reset so print() ends up where we expect */
+ setdefout(Nullgv);
+
+ /* Prepare to destruct main symbol table. */
+
+ hv = defstash;
+ defstash = 0;
+ SvREFCNT_dec(hv);
+
+ FREETMPS;
+ if (destruct_level >= 2) {
+ if (scopestack_ix != 0)
+ warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
+ (long)scopestack_ix);
+ if (savestack_ix != 0)
+ warn("Unbalanced saves: %ld more saves than restores\n",
+ (long)savestack_ix);
+ if (tmps_floor != -1)
+ warn("Unbalanced tmps: %ld more allocs than frees\n",
+ (long)tmps_floor + 1);
+ if (cxstack_ix != -1)
+ warn("Unbalanced context: %ld more PUSHes than POPs\n",
+ (long)cxstack_ix + 1);
+ }
+
+ /* Now absolutely destruct everything, somehow or other, loops or no. */
+ last_sv_count = 0;
+ SvFLAGS(strtab) |= SVTYPEMASK; /* don't clean out strtab now */
+ while (sv_count != 0 && sv_count != last_sv_count) {
+ last_sv_count = sv_count;
+ sv_clean_all();
+ }
+ SvFLAGS(strtab) &= ~SVTYPEMASK;
+ SvFLAGS(strtab) |= SVt_PVHV;
+
+ /* Destruct the global string table. */
+ {
+ /* Yell and reset the HeVAL() slots that are still holding refcounts,
+ * so that sv_free() won't fail on them.
+ */
+ I32 riter;
+ I32 max;
+ HE *hent;
+ HE **array;
+
+ riter = 0;
+ max = HvMAX(strtab);
+ array = HvARRAY(strtab);
+ hent = array[0];
+ for (;;) {
+ if (hent) {
+ warn("Unbalanced string table refcount: (%d) for \"%s\"",
+ HeVAL(hent) - Nullsv, HeKEY(hent));
+ HeVAL(hent) = Nullsv;
+ hent = HeNEXT(hent);
+ }
+ if (!hent) {
+ if (++riter > max)
+ break;
+ hent = array[riter];
+ }
+ }
+ }
+ SvREFCNT_dec(strtab);
+
+ if (sv_count != 0)
+ warn("Scalars leaked: %ld\n", (long)sv_count);
+
+ sv_free_arenas();
+
+ /* No SVs have survived, need to clean out */
+ linestr = NULL;
+ pidstatus = Nullhv;
+ if (origfilename)
+ Safefree(origfilename);
+ nuke_stacks();
+ hints = 0; /* Reset hints. Should hints be per-interpreter ? */
+
+ DEBUG_P(debprofdump());
+}
+
+void
+perl_free(sv_interp)
+PerlInterpreter *sv_interp;
+{
+ if (!(curinterp = sv_interp))
+ return;
+ Safefree(sv_interp);
+}
+#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
+char *getenv _((char *)); /* Usually in <stdlib.h> */
+#endif
+
+int
+perl_parse(sv_interp, xsinit, argc, argv, env)
+PerlInterpreter *sv_interp;
+void (*xsinit)_((void));
+int argc;
+char **argv;
+char **env;
{
- register STR *str;
+ register SV *sv;
register char *s;
- char *getenv();
- bool dosearch = FALSE;
-#ifdef DOSUID
+ char *scriptname = NULL;
+ VOL bool dosearch = FALSE;
char *validarg = "";
-#endif
+ I32 oldscope;
+ AV* comppadlist;
#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
#ifdef IAMSUID
#undef IAMSUID
- fatal("suidperl is no longer needed since the kernel can now execute\n\
+ croak("suidperl is no longer needed since the kernel can now execute\n\
setuid perl scripts securely.\n");
#endif
#endif
+ if (!(curinterp = sv_interp))
+ return 255;
+
+#if defined(NeXT) && defined(__DYNAMIC__)
+ _dyld_lookup_and_bind
+ ("__environ", (unsigned long *) &environ_pointer, NULL);
+#endif /* environ */
+
origargv = argv;
origargc = argc;
+#ifndef VMS /* VMS doesn't have environ array */
origenviron = environ;
- uid = (int)getuid();
- euid = (int)geteuid();
- gid = (int)getgid();
- egid = (int)getegid();
- sprintf(patchlevel,"%3.3s%2.2d", index(rcsid,'4'), PATCHLEVEL);
-#ifdef MSDOS
- /*
- * There is no way we can refer to them from Perl so close them to save
- * space. The other alternative would be to provide STDAUX and STDPRN
- * filehandles.
- */
- (void)fclose(stdaux);
- (void)fclose(stdprn);
#endif
+ e_tmpname = Nullch;
+
if (do_undump) {
- origfilename = savestr(argv[0]);
- do_undump = 0;
- loop_ptr = -1; /* start label stack again */
- goto just_doit;
+
+ /* Come here if running an undumped a.out. */
+
+ origfilename = savepv(argv[0]);
+ do_undump = FALSE;
+ cxstack_ix = -1; /* start label stack again */
+ init_ids();
+ init_postdump_symbols(argc,argv,env);
+ return 0;
+ }
+
+ if (main_root) {
+ curpad = AvARRAY(comppad);
+ op_free(main_root);
+ main_root = Nullop;
+ }
+ main_start = Nullop;
+ SvREFCNT_dec(main_cv);
+ main_cv = Nullcv;
+
+ time(&basetime);
+ oldscope = scopestack_ix;
+ mustcatch = FALSE;
+
+ switch (Sigsetjmp(top_env,1)) {
+ case 1:
+ STATUS_ALL_FAILURE;
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ while (scopestack_ix > oldscope)
+ LEAVE;
+ curstash = defstash;
+ if (endav)
+ call_list(oldscope, endav);
+ return STATUS_NATIVE_EXPORT;
+ case 3:
+ mustcatch = FALSE;
+ PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
+ return 1;
}
- (void)sprintf(index(rcsid,'#'), "%d\n", PATCHLEVEL);
- linestr = Str_new(65,80);
- str_nset(linestr,"",0);
- str = str_make("",0); /* first used for -I flags */
- curstash = defstash = hnew(0);
- curstname = str_make("main",4);
- stab_xhash(stabent("_main",TRUE)) = defstash;
- defstash->tbl_name = "main";
- incstab = hadd(aadd(stabent("INC",TRUE)));
- incstab->str_pok |= SP_MULTI;
+
+ sv_setpvn(linestr,"",0);
+ sv = newSVpv("",0); /* first used for -I flags */
+ SAVEFREESV(sv);
+ init_main_stash();
for (argc--,argv++; argc > 0; argc--,argv++) {
if (argv[0][0] != '-' || !argv[0][1])
break;
reswitch:
switch (*s) {
case '0':
+ case 'F':
case 'a':
case 'c':
case 'd':
case 'D':
+ case 'h':
case 'i':
case 'l':
+ case 'M':
+ case 'm':
case 'n':
case 'p':
+ case 's':
case 'u':
case 'U':
case 'v':
goto reswitch;
break;
+ case 'T':
+ tainting = TRUE;
+ s++;
+ goto reswitch;
+
case 'e':
-#ifdef TAINT
if (euid != uid || egid != gid)
- fatal("No -e allowed in setuid scripts");
-#endif
+ croak("No -e allowed in setuid scripts");
if (!e_fp) {
- e_tmpname = savestr(TMPPATH);
+ e_tmpname = savepv(TMPPATH);
(void)mktemp(e_tmpname);
- e_fp = fopen(e_tmpname,"w");
+ if (!*e_tmpname)
+ croak("Can't mktemp()");
+ e_fp = PerlIO_open(e_tmpname,"w");
if (!e_fp)
- fatal("Cannot open temporary file");
+ croak("Cannot open temporary file");
}
- if (argv[1]) {
- fputs(argv[1],e_fp);
+ if (*++s)
+ PerlIO_puts(e_fp,s);
+ else if (argv[1]) {
+ PerlIO_puts(e_fp,argv[1]);
argc--,argv++;
}
- (void)putc('\n', e_fp);
+ else
+ croak("No code specified for -e");
+ (void)PerlIO_putc(e_fp,'\n');
break;
case 'I':
-#ifdef TAINT
- if (euid != uid || egid != gid)
- fatal("No -I allowed in setuid scripts");
-#endif
- str_cat(str,"-");
- str_cat(str,s);
- str_cat(str," ");
+ forbid_setid("-I");
+ sv_catpv(sv,"-");
+ sv_catpv(sv,s);
+ sv_catpv(sv," ");
if (*++s) {
- (void)apush(stab_array(incstab),str_make(s,0));
+ incpush(s, TRUE);
}
else if (argv[1]) {
- (void)apush(stab_array(incstab),str_make(argv[1],0));
- str_cat(str,argv[1]);
+ incpush(argv[1], TRUE);
+ sv_catpv(sv,argv[1]);
argc--,argv++;
- str_cat(str," ");
+ sv_catpv(sv," ");
}
break;
case 'P':
-#ifdef TAINT
- if (euid != uid || egid != gid)
- fatal("No -P allowed in setuid scripts");
-#endif
+ forbid_setid("-P");
preprocess = TRUE;
s++;
goto reswitch;
- case 's':
-#ifdef TAINT
- if (euid != uid || egid != gid)
- fatal("No -s allowed in setuid scripts");
-#endif
- doswitches = TRUE;
- s++;
- goto reswitch;
case 'S':
+ forbid_setid("-S");
dosearch = TRUE;
s++;
goto reswitch;
+ case 'V':
+ if (!preambleav)
+ preambleav = newAV();
+ av_push(preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
+ if (*++s != ':') {
+ Sv = newSVpv("print myconfig();",0);
+#ifdef VMS
+ sv_catpv(Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
+#else
+ sv_catpv(Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
+#endif
+#if defined(DEBUGGING) || defined(NOEMBED) || defined(MULTIPLICITY)
+ strcpy(buf,"\" Compile-time options:");
+# ifdef DEBUGGING
+ strcat(buf," DEBUGGING");
+# endif
+# ifdef NOEMBED
+ strcat(buf," NOEMBED");
+# endif
+# ifdef MULTIPLICITY
+ strcat(buf," MULTIPLICITY");
+# endif
+ strcat(buf,"\\n\",");
+ sv_catpv(Sv,buf);
+#endif
+#if defined(LOCAL_PATCH_COUNT)
+ if (LOCAL_PATCH_COUNT > 0)
+ { int i;
+ sv_catpv(Sv,"print \" Locally applied patches:\\n\",");
+ for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
+ if (localpatches[i]) {
+ sprintf(buf,"\" \\t%s\\n\",",localpatches[i]);
+ sv_catpv(Sv,buf);
+ }
+ }
+ }
+#endif
+ sprintf(buf,"\" Built under %s\\n\",",OSNAME);
+ sv_catpv(Sv,buf);
+#ifdef __DATE__
+# ifdef __TIME__
+ sprintf(buf,"\" Compiled at %s %s\\n\"",__DATE__,__TIME__);
+# else
+ sprintf(buf,"\" Compiled on %s\\n\"",__DATE__);
+# endif
+ sv_catpv(Sv,buf);
+#endif
+ sv_catpv(Sv,"; $\"=\"\\n \"; print \" \\@INC:\\n @INC\\n\"");
+ }
+ else {
+ Sv = newSVpv("config_vars(qw(",0);
+ sv_catpv(Sv, ++s);
+ sv_catpv(Sv, "))");
+ s += strlen(s);
+ }
+ av_push(preambleav, Sv);
+ scriptname = BIT_BUCKET; /* don't look for script or read stdin */
+ goto reswitch;
case 'x':
doextract = TRUE;
s++;
if (*s)
- cddir = savestr(s);
+ cddir = savepv(s);
break;
case '-':
argc--,argv++;
case 0:
break;
default:
- fatal("Unrecognized switch: -%s",s);
+ croak("Unrecognized switch: -%s",s);
}
}
switch_end:
+ if (!scriptname)
+ scriptname = argv[0];
if (e_fp) {
- (void)fclose(e_fp);
+ if (PerlIO_flush(e_fp) || PerlIO_error(e_fp) || PerlIO_close(e_fp)) {
+#ifndef MULTIPLICITY
+ warn("Did you forget to compile with -DMULTIPLICITY?");
+#endif
+ croak("Can't write to temp file for -e: %s", Strerror(errno));
+ }
+ e_fp = Nullfp;
argc++,argv--;
- argv[0] = e_tmpname;
+ scriptname = e_tmpname;
}
-
+ else if (scriptname == Nullch) {
#ifdef MSDOS
-#define PERLLIB_SEP ';'
-#else
-#define PERLLIB_SEP ':'
+ if ( isatty(PerlIO_fileno(PerlIO_stdin())) )
+ moreswitches("h");
#endif
-#ifndef TAINT /* Can't allow arbitrary PERLLIB in setuid script */
- {
- char * s2 = getenv("PERLLIB");
-
- if ( s2 ) {
- /* Break at all separators */
- while ( *s2 ) {
- /* First, skip any consecutive separators */
- while ( *s2 == PERLLIB_SEP ) {
- /* Uncomment the next line for PATH semantics */
- /* (void)apush(stab_array(incstab),str_make(".",1)); */
- s2++;
- }
- if ( (s = index(s2,PERLLIB_SEP)) != Nullch ) {
- (void)apush(stab_array(incstab),str_make(s2,(int)(s-s2)));
- s2 = s+1;
- } else {
- (void)apush(stab_array(incstab),str_make(s2,0));
- break;
- }
- }
- }
+ scriptname = "-";
}
-#endif /* TAINT */
-#ifndef PRIVLIB
-#define PRIVLIB "/usr/local/lib/perl"
+ init_perllib();
+
+ open_script(scriptname,dosearch,sv);
+
+ validate_suid(validarg, scriptname);
+
+ if (doextract)
+ find_beginning();
+
+ main_cv = compcv = (CV*)NEWSV(1104,0);
+ sv_upgrade((SV *)compcv, SVt_PVCV);
+ CvUNIQUE_on(compcv);
+
+ comppad = newAV();
+ av_push(comppad, Nullsv);
+ curpad = AvARRAY(comppad);
+ comppad_name = newAV();
+ comppad_name_fill = 0;
+ min_intro_pending = 0;
+ padix = 0;
+
+ comppadlist = newAV();
+ AvREAL_off(comppadlist);
+ av_store(comppadlist, 0, (SV*)comppad_name);
+ av_store(comppadlist, 1, (SV*)comppad);
+ CvPADLIST(compcv) = comppadlist;
+
+ boot_core_UNIVERSAL();
+ if (xsinit)
+ (*xsinit)(); /* in case linked C routines want magical variables */
+#ifdef VMS
+ init_os_extras();
#endif
- (void)apush(stab_array(incstab),str_make(PRIVLIB,0));
- (void)apush(stab_array(incstab),str_make(".",1));
- str_set(&str_no,No);
- str_set(&str_yes,Yes);
+ init_predump_symbols();
+ if (!do_undump)
+ init_postdump_symbols(argc,argv,env);
- /* open script */
+ init_lexer();
- if (argv[0] == Nullch)
-#ifdef MSDOS
- {
- if ( isatty(fileno(stdin)) )
- moreswitches("v");
- argv[0] = "-";
+ /* now parse the script */
+
+ error_count = 0;
+ if (yyparse() || error_count) {
+ if (minus_c)
+ croak("%s had compilation errors.\n", origfilename);
+ else {
+ croak("Execution of %s aborted due to compilation errors.\n",
+ origfilename);
+ }
+ }
+ curcop->cop_line = 0;
+ curstash = defstash;
+ preprocess = FALSE;
+ if (e_tmpname) {
+ (void)UNLINK(e_tmpname);
+ Safefree(e_tmpname);
+ e_tmpname = Nullch;
}
-#else
- argv[0] = "-";
-#endif
- if (dosearch && !index(argv[0], '/') && (s = getenv("PATH"))) {
- char *xfound = Nullch, *xfailed = Nullch;
- int len;
- bufend = s + strlen(s);
- while (*s) {
-#ifndef MSDOS
- s = cpytill(tokenbuf,s,bufend,':',&len);
-#else
- for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++);
- tokenbuf[len] = '\0';
-#endif
- if (*s)
- s++;
-#ifndef MSDOS
- if (len && tokenbuf[len-1] != '/')
-#else
- if (len && tokenbuf[len-1] != '\\')
+ /* now that script is parsed, we can modify record separator */
+ SvREFCNT_dec(rs);
+ rs = SvREFCNT_inc(nrs);
+ sv_setsv(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), rs);
+
+ if (do_undump)
+ my_unexec();
+
+ if (dowarn)
+ gv_check(defstash);
+
+ LEAVE;
+ FREETMPS;
+
+#ifdef DEBUGGING_MSTATS
+ if ((s=getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
+ dump_mstats("after compilation:");
#endif
- (void)strcat(tokenbuf+len,"/");
- (void)strcat(tokenbuf+len,argv[0]);
-#ifdef DEBUGGING
- if (debug & 1)
- fprintf(stderr,"Looking for %s\n",tokenbuf);
+
+ ENTER;
+ restartop = 0;
+ return 0;
+}
+
+int
+perl_run(sv_interp)
+PerlInterpreter *sv_interp;
+{
+ I32 oldscope;
+
+ if (!(curinterp = sv_interp))
+ return 255;
+
+ oldscope = scopestack_ix;
+
+ switch (Sigsetjmp(top_env,1)) {
+ case 1:
+ cxstack_ix = -1; /* start context stack again */
+ break;
+ case 2:
+ /* my_exit() was called */
+ while (scopestack_ix > oldscope)
+ LEAVE;
+ curstash = defstash;
+ if (endav)
+ call_list(oldscope, endav);
+ FREETMPS;
+#ifdef DEBUGGING_MSTATS
+ if (getenv("PERL_DEBUG_MSTATS"))
+ dump_mstats("after execution: ");
#endif
- if (stat(tokenbuf,&statbuf) < 0) /* not there? */
- continue;
- if (S_ISREG(statbuf.st_mode)
- && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) {
- xfound = tokenbuf; /* bingo! */
- break;
- }
- if (!xfailed)
- xfailed = savestr(tokenbuf);
+ return STATUS_NATIVE_EXPORT;
+ case 3:
+ mustcatch = FALSE;
+ if (!restartop) {
+ PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
+ FREETMPS;
+ return 1;
}
- if (!xfound)
- fatal("Can't execute %s", xfailed ? xfailed : argv[0] );
- if (xfailed)
- Safefree(xfailed);
- argv[0] = savestr(xfound);
+ if (curstack != mainstack) {
+ dSP;
+ SWITCHSTACK(curstack, mainstack);
+ }
+ break;
}
- fdpid = anew(Nullstab); /* for remembering popen pids by fd */
- pidstatus = hnew(COEFFSIZE);/* for remembering status of dead pids */
+ DEBUG_r(PerlIO_printf(PerlIO_stderr(), "%s $` $& $' support.\n",
+ sawampersand ? "Enabling" : "Omitting"));
- origfilename = savestr(argv[0]);
- curcmd->c_filestab = fstab(origfilename);
- if (strEQ(origfilename,"-"))
- argv[0] = "";
- if (preprocess) {
- str_cat(str,"-I");
- str_cat(str,PRIVLIB);
- (void)sprintf(buf, "\
-%ssed %s -e '/^[^#]/b' \
- -e '/^#[ ]*include[ ]/b' \
- -e '/^#[ ]*define[ ]/b' \
- -e '/^#[ ]*if[ ]/b' \
- -e '/^#[ ]*ifdef[ ]/b' \
- -e '/^#[ ]*ifndef[ ]/b' \
- -e '/^#[ ]*else/b' \
- -e '/^#[ ]*endif/b' \
- -e 's/^#.*//' \
- %s | %s -C %s %s",
-#ifdef MSDOS
- "",
-#else
- "/bin/",
-#endif
- (doextract ? "-e '1,/^#/d\n'" : ""),
- argv[0], CPPSTDIN, str_get(str), CPPMINUS);
-#ifdef DEBUGGING
- if (debug & 64) {
- fputs(buf,stderr);
- fputs("\n",stderr);
+ if (!restartop) {
+ DEBUG_x(dump_all());
+ DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
+
+ if (minus_c) {
+ PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", origfilename);
+ my_exit(0);
}
-#endif
- doextract = FALSE;
-#ifdef IAMSUID /* actually, this is caught earlier */
- if (euid != uid && !euid) /* if running suidperl */
-#ifdef HAS_SETEUID
- (void)seteuid(uid); /* musn't stay setuid root */
-#else
-#ifdef HAS_SETREUID
- (void)setreuid(-1, uid);
-#else
- setuid(uid);
-#endif
-#endif
-#endif /* IAMSUID */
- rsfp = mypopen(buf,"r");
+ if (perldb && DBsingle)
+ sv_setiv(DBsingle, 1);
}
- else if (!*argv[0])
- rsfp = stdin;
- else
- rsfp = fopen(argv[0],"r");
- if (rsfp == Nullfp) {
-#ifdef DOSUID
-#ifndef IAMSUID /* in case script is not readable before setuid */
- if (euid && stat(stab_val(curcmd->c_filestab)->str_ptr,&statbuf) >= 0 &&
- statbuf.st_mode & (S_ISUID|S_ISGID)) {
- (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel);
- execv(buf, origargv); /* try again */
- fatal("Can't do setuid\n");
- }
-#endif
-#endif
- fatal("Can't open perl script \"%s\": %s\n",
- stab_val(curcmd->c_filestab)->str_ptr, strerror(errno));
+
+ /* do it */
+
+ if (restartop) {
+ op = restartop;
+ restartop = 0;
+ runops();
+ }
+ else if (main_start) {
+ CvDEPTH(main_cv) = 1;
+ op = main_start;
+ runops();
}
- str_free(str); /* free -I directories */
- str = Nullstr;
- /* do we need to emulate setuid on scripts? */
+ my_exit(0);
+ return 0;
+}
+
+SV*
+perl_get_sv(name, create)
+char* name;
+I32 create;
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PV);
+ if (gv)
+ return GvSV(gv);
+ return Nullsv;
+}
+
+AV*
+perl_get_av(name, create)
+char* name;
+I32 create;
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PVAV);
+ if (create)
+ return GvAVn(gv);
+ if (gv)
+ return GvAV(gv);
+ return Nullav;
+}
+
+HV*
+perl_get_hv(name, create)
+char* name;
+I32 create;
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PVHV);
+ if (create)
+ return GvHVn(gv);
+ if (gv)
+ return GvHV(gv);
+ return Nullhv;
+}
+
+CV*
+perl_get_cv(name, create)
+char* name;
+I32 create;
+{
+ GV* gv = gv_fetchpv(name, create, SVt_PVCV);
+ if (create && !GvCVu(gv))
+ return newSUB(start_subparse(FALSE, 0),
+ newSVOP(OP_CONST, 0, newSVpv(name,0)),
+ Nullop,
+ Nullop);
+ if (gv)
+ return GvCVu(gv);
+ return Nullcv;
+}
+
+/* Be sure to refetch the stack pointer after calling these routines. */
+
+I32
+perl_call_argv(subname, flags, argv)
+char *subname;
+I32 flags; /* See G_* flags in cop.h */
+register char **argv; /* null terminated arg list */
+{
+ dSP;
+
+ PUSHMARK(sp);
+ if (argv) {
+ while (*argv) {
+ XPUSHs(sv_2mortal(newSVpv(*argv,0)));
+ argv++;
+ }
+ PUTBACK;
+ }
+ return perl_call_pv(subname, flags);
+}
+
+I32
+perl_call_pv(subname, flags)
+char *subname; /* name of the subroutine */
+I32 flags; /* See G_* flags in cop.h */
+{
+ return perl_call_sv((SV*)perl_get_cv(subname, TRUE), flags);
+}
+
+I32
+perl_call_method(methname, flags)
+char *methname; /* name of the subroutine */
+I32 flags; /* See G_* flags in cop.h */
+{
+ dSP;
+ OP myop;
+ if (!op)
+ op = &myop;
+ XPUSHs(sv_2mortal(newSVpv(methname,0)));
+ PUTBACK;
+ pp_method();
+ return perl_call_sv(*stack_sp--, flags);
+}
+
+/* May be called with any of a CV, a GV, or an SV containing the name. */
+I32
+perl_call_sv(sv, flags)
+SV* sv;
+I32 flags; /* See G_* flags in cop.h */
+{
+ LOGOP myop; /* fake syntax tree node */
+ SV** sp = stack_sp;
+ I32 oldmark;
+ I32 retval;
+ Sigjmp_buf oldtop;
+ I32 oldscope;
+ static CV *DBcv;
+ bool oldmustcatch = mustcatch;
+
+ if (flags & G_DISCARD) {
+ ENTER;
+ SAVETMPS;
+ }
+
+ Zero(&myop, 1, LOGOP);
+ if (flags & G_NOARGS) {
+ PUSHMARK(sp);
+ }
+ else
+ myop.op_flags |= OPf_STACKED;
+ myop.op_next = Nullop;
+ myop.op_flags |= OPf_KNOW;
+ if (flags & G_ARRAY)
+ myop.op_flags |= OPf_LIST;
+ SAVESPTR(op);
+ op = (OP*)&myop;
+
+ EXTEND(stack_sp, 1);
+ *++stack_sp = sv;
+ oldmark = TOPMARK;
+ oldscope = scopestack_ix;
+
+ if (perldb && curstash != debstash
+ /* Handle first BEGIN of -d. */
+ && (DBcv || (DBcv = GvCV(DBsub)))
+ /* Try harder, since this may have been a sighandler, thus
+ * curstash may be meaningless. */
+ && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != debstash))
+ op->op_private |= OPpENTERSUB_DB;
+
+ if (flags & G_EVAL) {
+ Copy(top_env, oldtop, 1, Sigjmp_buf);
+
+ cLOGOP->op_other = op;
+ markstack_ptr--;
+ /* we're trying to emulate pp_entertry() here */
+ {
+ register CONTEXT *cx;
+ I32 gimme = GIMME;
+
+ ENTER;
+ SAVETMPS;
+
+ push_return(op->op_next);
+ PUSHBLOCK(cx, CXt_EVAL, stack_sp);
+ PUSHEVAL(cx, 0, 0);
+ eval_root = op; /* Only needed so that goto works right. */
+
+ in_eval = 1;
+ if (flags & G_KEEPERR)
+ in_eval |= 4;
+ else
+ sv_setpv(GvSV(errgv),"");
+ }
+ markstack_ptr++;
+
+ restart:
+ switch (Sigsetjmp(top_env,1)) {
+ case 0:
+ break;
+ case 1:
+ STATUS_ALL_FAILURE;
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ curstash = defstash;
+ FREETMPS;
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ if (statusvalue)
+ croak("Callback called exit");
+ my_exit_jump();
+ /* NOTREACHED */
+ case 3:
+ mustcatch = FALSE;
+ if (restartop) {
+ op = restartop;
+ restartop = 0;
+ goto restart;
+ }
+ stack_sp = stack_base + oldmark;
+ if (flags & G_ARRAY)
+ retval = 0;
+ else {
+ retval = 1;
+ *++stack_sp = &sv_undef;
+ }
+ goto cleanup;
+ }
+ }
+ else
+ mustcatch = TRUE;
+
+ if (op == (OP*)&myop)
+ op = pp_entersub();
+ if (op)
+ runops();
+ retval = stack_sp - (stack_base + oldmark);
+ if ((flags & G_EVAL) && !(flags & G_KEEPERR))
+ sv_setpv(GvSV(errgv),"");
+
+ cleanup:
+ if (flags & G_EVAL) {
+ if (scopestack_ix > oldscope) {
+ SV **newsp;
+ PMOP *newpm;
+ I32 gimme;
+ register CONTEXT *cx;
+ I32 optype;
+
+ POPBLOCK(cx,newpm);
+ POPEVAL(cx);
+ pop_return();
+ curpm = newpm;
+ LEAVE;
+ }
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ }
+ else
+ mustcatch = oldmustcatch;
+
+ if (flags & G_DISCARD) {
+ stack_sp = stack_base + oldmark;
+ retval = 0;
+ FREETMPS;
+ LEAVE;
+ }
+ return retval;
+}
+
+/* Eval a string. The G_EVAL flag is always assumed. */
+
+I32
+perl_eval_sv(sv, flags)
+SV* sv;
+I32 flags; /* See G_* flags in cop.h */
+{
+ UNOP myop; /* fake syntax tree node */
+ SV** sp = stack_sp;
+ I32 oldmark = sp - stack_base;
+ I32 retval;
+ Sigjmp_buf oldtop;
+ I32 oldscope;
+
+ if (flags & G_DISCARD) {
+ ENTER;
+ SAVETMPS;
+ }
+
+ SAVESPTR(op);
+ op = (OP*)&myop;
+ Zero(op, 1, UNOP);
+ EXTEND(stack_sp, 1);
+ *++stack_sp = sv;
+ oldscope = scopestack_ix;
+
+ if (!(flags & G_NOARGS))
+ myop.op_flags = OPf_STACKED;
+ myop.op_next = Nullop;
+ myop.op_type = OP_ENTEREVAL;
+ myop.op_flags |= OPf_KNOW;
+ if (flags & G_KEEPERR)
+ myop.op_flags |= OPf_SPECIAL;
+ if (flags & G_ARRAY)
+ myop.op_flags |= OPf_LIST;
+
+ Copy(top_env, oldtop, 1, Sigjmp_buf);
+
+restart:
+ switch (Sigsetjmp(top_env,1)) {
+ case 0:
+ break;
+ case 1:
+ STATUS_ALL_FAILURE;
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ curstash = defstash;
+ FREETMPS;
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ if (statusvalue)
+ croak("Callback called exit");
+ my_exit_jump();
+ /* NOTREACHED */
+ case 3:
+ mustcatch = FALSE;
+ if (restartop) {
+ op = restartop;
+ restartop = 0;
+ goto restart;
+ }
+ stack_sp = stack_base + oldmark;
+ if (flags & G_ARRAY)
+ retval = 0;
+ else {
+ retval = 1;
+ *++stack_sp = &sv_undef;
+ }
+ goto cleanup;
+ }
+
+ if (op == (OP*)&myop)
+ op = pp_entereval();
+ if (op)
+ runops();
+ retval = stack_sp - (stack_base + oldmark);
+ if (!(flags & G_KEEPERR))
+ sv_setpv(GvSV(errgv),"");
+
+ cleanup:
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ if (flags & G_DISCARD) {
+ stack_sp = stack_base + oldmark;
+ retval = 0;
+ FREETMPS;
+ LEAVE;
+ }
+ return retval;
+}
+
+/* Require a module. */
+
+void
+perl_require_pv(pv)
+char* pv;
+{
+ SV* sv = sv_newmortal();
+ sv_setpv(sv, "require '");
+ sv_catpv(sv, pv);
+ sv_catpv(sv, "'");
+ perl_eval_sv(sv, G_DISCARD);
+}
+
+void
+magicname(sym,name,namlen)
+char *sym;
+char *name;
+I32 namlen;
+{
+ register GV *gv;
+
+ if (gv = gv_fetchpv(sym,TRUE, SVt_PV))
+ sv_magic(GvSV(gv), (SV*)gv, 0, name, namlen);
+}
+
+static void
+usage(name) /* XXX move this out into a module ? */
+char *name;
+{
+ /* This message really ought to be max 23 lines.
+ * Removed -h because the user already knows that opton. Others? */
+ printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
+ printf("\n -0[octal] specify record separator (\\0, if no argument)");
+ printf("\n -a autosplit mode with -n or -p (splits $_ into @F)");
+ printf("\n -c check syntax only (runs BEGIN and END blocks)");
+ printf("\n -d[:debugger] run scripts under debugger");
+ printf("\n -D[number/list] set debugging flags (argument is a bit mask or flags)");
+ printf("\n -e 'command' one line of script. Several -e's allowed. Omit [programfile].");
+ printf("\n -F/pattern/ split() pattern for autosplit (-a). The //'s are optional.");
+ printf("\n -i[extension] edit <> files in place (make backup if extension supplied)");
+ printf("\n -Idirectory specify @INC/#include directory (may be used more then once)");
+ printf("\n -l[octal] enable line ending processing, specifies line teminator");
+ printf("\n -[mM][-]module.. executes `use/no module...' before executing your script.");
+ printf("\n -n assume 'while (<>) { ... }' loop arround your script");
+ printf("\n -p assume loop like -n but print line also like sed");
+ printf("\n -P run script through C preprocessor before compilation");
+ printf("\n -s enable some switch parsing for switches after script name");
+ printf("\n -S look for the script using PATH environment variable");
+ printf("\n -T turn on tainting checks");
+ printf("\n -u dump core after parsing script");
+ printf("\n -U allow unsafe operations");
+ printf("\n -v print version number and patchlevel of perl");
+ printf("\n -V[:variable] print perl configuration information");
+ printf("\n -w TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT.");
+ printf("\n -x[directory] strip off text before #!perl line and perhaps cd to directory\n");
+}
+
+/* This routine handles any switches that can be given during run */
+
+char *
+moreswitches(s)
+char *s;
+{
+ I32 numlen;
+ U32 rschar;
+
+ switch (*s) {
+ case '0':
+ rschar = scan_oct(s, 4, &numlen);
+ SvREFCNT_dec(nrs);
+ if (rschar & ~((U8)~0))
+ nrs = &sv_undef;
+ else if (!rschar && numlen >= 2)
+ nrs = newSVpv("", 0);
+ else {
+ char ch = rschar;
+ nrs = newSVpv(&ch, 1);
+ }
+ return s + numlen;
+ case 'F':
+ minus_F = TRUE;
+ splitstr = savepv(s + 1);
+ s += strlen(s);
+ return s;
+ case 'a':
+ minus_a = TRUE;
+ s++;
+ return s;
+ case 'c':
+ minus_c = TRUE;
+ s++;
+ return s;
+ case 'd':
+ forbid_setid("-d");
+ s++;
+ if (*s == ':' || *s == '=') {
+ sprintf(buf, "use Devel::%s;", ++s);
+ s += strlen(s);
+ my_setenv("PERL5DB",buf);
+ }
+ if (!perldb) {
+ perldb = TRUE;
+ init_debugger();
+ }
+ return s;
+ case 'D':
+#ifdef DEBUGGING
+ forbid_setid("-D");
+ if (isALPHA(s[1])) {
+ static char debopts[] = "psltocPmfrxuLHXD";
+ char *d;
+
+ for (s++; *s && (d = strchr(debopts,*s)); s++)
+ debug |= 1 << (d - debopts);
+ }
+ else {
+ debug = atoi(s+1);
+ for (s++; isDIGIT(*s); s++) ;
+ }
+ debug |= 0x80000000;
+#else
+ warn("Recompile perl with -DDEBUGGING to use -D switch\n");
+ for (s++; isALNUM(*s); s++) ;
+#endif
+ /*SUPPRESS 530*/
+ return s;
+ case 'h':
+ usage(origargv[0]);
+ exit(0);
+ case 'i':
+ if (inplace)
+ Safefree(inplace);
+ inplace = savepv(s+1);
+ /*SUPPRESS 530*/
+ for (s = inplace; *s && !isSPACE(*s); s++) ;
+ *s = '\0';
+ break;
+ case 'I':
+ forbid_setid("-I");
+ if (*++s) {
+ char *e, *p;
+ for (e = s; *e && !isSPACE(*e); e++) ;
+ p = savepvn(s, e-s);
+ incpush(p, TRUE);
+ Safefree(p);
+ if (*e)
+ return e;
+ }
+ else
+ croak("No space allowed after -I");
+ break;
+ case 'l':
+ minus_l = TRUE;
+ s++;
+ if (ors)
+ Safefree(ors);
+ if (isDIGIT(*s)) {
+ ors = savepv("\n");
+ orslen = 1;
+ *ors = scan_oct(s, 3 + (*s == '0'), &numlen);
+ s += numlen;
+ }
+ else {
+ if (RsPARA(nrs)) {
+ ors = "\n\n";
+ orslen = 2;
+ }
+ else
+ ors = SvPV(nrs, orslen);
+ ors = savepvn(ors, orslen);
+ }
+ return s;
+ case 'M':
+ forbid_setid("-M"); /* XXX ? */
+ /* FALL THROUGH */
+ case 'm':
+ forbid_setid("-m"); /* XXX ? */
+ if (*++s) {
+ char *start;
+ char *use = "use ";
+ /* -M-foo == 'no foo' */
+ if (*s == '-') { use = "no "; ++s; }
+ Sv = newSVpv(use,0);
+ start = s;
+ /* We allow -M'Module qw(Foo Bar)' */
+ while(isALNUM(*s) || *s==':') ++s;
+ if (*s != '=') {
+ sv_catpv(Sv, start);
+ if (*(start-1) == 'm') {
+ if (*s != '\0')
+ croak("Can't use '%c' after -mname", *s);
+ sv_catpv( Sv, " ()");
+ }
+ } else {
+ sv_catpvn(Sv, start, s-start);
+ sv_catpv(Sv, " split(/,/,q{");
+ sv_catpv(Sv, ++s);
+ sv_catpv(Sv, "})");
+ }
+ s += strlen(s);
+ if (preambleav == NULL)
+ preambleav = newAV();
+ av_push(preambleav, Sv);
+ }
+ else
+ croak("No space allowed after -%c", *(s-1));
+ return s;
+ case 'n':
+ minus_n = TRUE;
+ s++;
+ return s;
+ case 'p':
+ minus_p = TRUE;
+ s++;
+ return s;
+ case 's':
+ forbid_setid("-s");
+ doswitches = TRUE;
+ s++;
+ return s;
+ case 'T':
+ if (!tainting)
+ croak("Too late for \"-T\" option");
+ s++;
+ return s;
+ case 'u':
+ do_undump = TRUE;
+ s++;
+ return s;
+ case 'U':
+ unsafe = TRUE;
+ s++;
+ return s;
+ case 'v':
+#if defined(SUBVERSION) && SUBVERSION > 0
+ printf("\nThis is perl, version 5.%03d_%02d", PATCHLEVEL, SUBVERSION);
+#else
+ printf("\nThis is perl, version %s",patchlevel);
+#endif
+
+ printf("\n\nCopyright 1987-1997, Larry Wall\n");
+#ifdef MSDOS
+ printf("\n\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
+#endif
+#ifdef DJGPP
+ printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
+#endif
+#ifdef OS2
+ printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
+ "Version 5 port Copyright (c) 1994-1997, Andreas Kaiser, Ilya Zakharevich\n");
+#endif
+#ifdef atarist
+ printf("atariST series port, ++jrb bammi@cadence.com\n");
+#endif
+ printf("\n\
+Perl may be copied only under the terms of either the Artistic License or the\n\
+GNU General Public License, which may be found in the Perl 5.0 source kit.\n\n");
+ exit(0);
+ case 'w':
+ dowarn = TRUE;
+ s++;
+ return s;
+ case '*':
+ case ' ':
+ if (s[1] == '-') /* Additional switches on #! line. */
+ return s+2;
+ break;
+ case '-':
+ case 0:
+ case '\n':
+ case '\t':
+ break;
+#ifdef ALTERNATE_SHEBANG
+ case 'S': /* OS/2 needs -S on "extproc" line. */
+ break;
+#endif
+ case 'P':
+ if (preprocess)
+ return s+1;
+ /* FALL THROUGH */
+ default:
+ croak("Can't emulate -%.1s on #! line",s);
+ }
+ return Nullch;
+}
+
+/* compliments of Tom Christiansen */
+
+/* unexec() can be found in the Gnu emacs distribution */
+
+void
+my_unexec()
+{
+#ifdef UNEXEC
+ int status;
+ extern int etext;
+
+ sprintf (buf, "%s.perldump", origfilename);
+ sprintf (tokenbuf, "%s/perl", BIN_EXP);
+
+ status = unexec(buf, tokenbuf, &etext, sbrk(0), 0);
+ if (status)
+ PerlIO_printf(PerlIO_stderr(), "unexec of %s into %s failed!\n", tokenbuf, buf);
+ exit(status);
+#else
+# ifdef VMS
+# include <lib$routines.h>
+ lib$signal(SS$_DEBUG); /* ssdef.h #included from vmsish.h */
+# else
+ ABORT(); /* for use with undump */
+# endif
+#endif
+}
+
+static void
+init_main_stash()
+{
+ GV *gv;
+
+ /* Note that strtab is a rather special HV. Assumptions are made
+ about not iterating on it, and not adding tie magic to it.
+ It is properly deallocated in perl_destruct() */
+ strtab = newHV();
+ HvSHAREKEYS_off(strtab); /* mandatory */
+ Newz(506,((XPVHV*)SvANY(strtab))->xhv_array,
+ sizeof(HE*) * (((XPVHV*)SvANY(strtab))->xhv_max + 1), char);
+
+ curstash = defstash = newHV();
+ curstname = newSVpv("main",4);
+ gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
+ SvREFCNT_dec(GvHV(gv));
+ GvHV(gv) = (HV*)SvREFCNT_inc(defstash);
+ SvREADONLY_on(gv);
+ HvNAME(defstash) = savepv("main");
+ incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
+ GvMULTI_on(incgv);
+ defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
+ errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
+ GvMULTI_on(errgv);
+ sv_setpvn(GvSV(errgv), "", 0);
+ curstash = defstash;
+ compiling.cop_stash = defstash;
+ debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
+ /* We must init $/ before switches are processed. */
+ sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
+}
+
+#ifdef CAN_PROTOTYPE
+static void
+open_script(char *scriptname, bool dosearch, SV *sv)
+#else
+static void
+open_script(scriptname,dosearch,sv)
+char *scriptname;
+bool dosearch;
+SV *sv;
+#endif
+{
+ char *xfound = Nullch;
+ char *xfailed = Nullch;
+ register char *s;
+ I32 len;
+ int retval;
+#if defined(DOSISH) && !defined(OS2) && !defined(atarist)
+#define SEARCH_EXTS ".bat", ".cmd", NULL
+#endif
+#ifdef VMS
+# define SEARCH_EXTS ".pl", ".com", NULL
+#endif
+ /* additional extensions to try in each dir if scriptname not found */
+#ifdef SEARCH_EXTS
+ char *ext[] = { SEARCH_EXTS };
+ int extidx = (strchr(scriptname,'.')) ? -1 : 0; /* has ext already */
+#endif
+
+#ifdef VMS
+ if (dosearch) {
+ int hasdir, idx = 0, deftypes = 1;
+
+ hasdir = (strpbrk(scriptname,":[</") != Nullch) ;
+ /* The first time through, just add SEARCH_EXTS to whatever we
+ * already have, so we can check for default file types. */
+ while (deftypes || (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) {
+ if (deftypes) { deftypes = 0; *tokenbuf = '\0'; }
+ strcat(tokenbuf,scriptname);
+#else /* !VMS */
+ if (dosearch && !strchr(scriptname, '/') && (s = getenv("PATH"))) {
+
+ bufend = s + strlen(s);
+ while (*s) {
+#ifndef DOSISH
+ s = cpytill(tokenbuf,s,bufend,':',&len);
+#else
+#ifdef atarist
+ for (len = 0; *s && *s != ',' && *s != ';'; tokenbuf[len++] = *s++);
+ tokenbuf[len] = '\0';
+#else
+ for (len = 0; *s && *s != ';'; tokenbuf[len++] = *s++);
+ tokenbuf[len] = '\0';
+#endif
+#endif
+ if (*s)
+ s++;
+#ifndef DOSISH
+ if (len && tokenbuf[len-1] != '/')
+#else
+#ifdef atarist
+ if (len && ((tokenbuf[len-1] != '\\') && (tokenbuf[len-1] != '/')))
+#else
+ if (len && tokenbuf[len-1] != '\\')
+#endif
+#endif
+ (void)strcat(tokenbuf+len,"/");
+ (void)strcat(tokenbuf+len,scriptname);
+#endif /* !VMS */
+
+#ifdef SEARCH_EXTS
+ len = strlen(tokenbuf);
+ if (extidx > 0) /* reset after previous loop */
+ extidx = 0;
+ do {
+#endif
+ DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf));
+ retval = Stat(tokenbuf,&statbuf);
+#ifdef SEARCH_EXTS
+ } while ( retval < 0 /* not there */
+ && extidx>=0 && ext[extidx] /* try an extension? */
+ && strcpy(tokenbuf+len, ext[extidx++])
+ );
+#endif
+ if (retval < 0)
+ continue;
+ if (S_ISREG(statbuf.st_mode)
+ && cando(S_IRUSR,TRUE,&statbuf) && cando(S_IXUSR,TRUE,&statbuf)) {
+ xfound = tokenbuf; /* bingo! */
+ break;
+ }
+ if (!xfailed)
+ xfailed = savepv(tokenbuf);
+ }
+ if (!xfound)
+ croak("Can't execute %s", xfailed ? xfailed : scriptname );
+ if (xfailed)
+ Safefree(xfailed);
+ scriptname = xfound;
+ }
+
+ if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
+ char *s = scriptname + 8;
+ fdscript = atoi(s);
+ while (isDIGIT(*s))
+ s++;
+ if (*s)
+ scriptname = s + 1;
+ }
+ else
+ fdscript = -1;
+ origfilename = savepv(e_tmpname ? "-e" : scriptname);
+ curcop->cop_filegv = gv_fetchfile(origfilename);
+ if (strEQ(origfilename,"-"))
+ scriptname = "";
+ if (fdscript >= 0) {
+ rsfp = PerlIO_fdopen(fdscript,"r");
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ if (rsfp)
+ fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */
+#endif
+ }
+ else if (preprocess) {
+ char *cpp = CPPSTDIN;
+
+ if (strEQ(cpp,"cppstdin"))
+ sprintf(tokenbuf, "%s/%s", BIN_EXP, cpp);
+ else
+ sprintf(tokenbuf, "%s", cpp);
+ sv_catpv(sv,"-I");
+ sv_catpv(sv,PRIVLIB_EXP);
+#ifdef MSDOS
+ (void)sprintf(buf, "\
+sed %s -e \"/^[^#]/b\" \
+ -e \"/^#[ ]*include[ ]/b\" \
+ -e \"/^#[ ]*define[ ]/b\" \
+ -e \"/^#[ ]*if[ ]/b\" \
+ -e \"/^#[ ]*ifdef[ ]/b\" \
+ -e \"/^#[ ]*ifndef[ ]/b\" \
+ -e \"/^#[ ]*else/b\" \
+ -e \"/^#[ ]*elif[ ]/b\" \
+ -e \"/^#[ ]*undef[ ]/b\" \
+ -e \"/^#[ ]*endif/b\" \
+ -e \"s/^#.*//\" \
+ %s | %s -C %s %s",
+ (doextract ? "-e \"1,/^#/d\n\"" : ""),
+#else
+ (void)sprintf(buf, "\
+%s %s -e '/^[^#]/b' \
+ -e '/^#[ ]*include[ ]/b' \
+ -e '/^#[ ]*define[ ]/b' \
+ -e '/^#[ ]*if[ ]/b' \
+ -e '/^#[ ]*ifdef[ ]/b' \
+ -e '/^#[ ]*ifndef[ ]/b' \
+ -e '/^#[ ]*else/b' \
+ -e '/^#[ ]*elif[ ]/b' \
+ -e '/^#[ ]*undef[ ]/b' \
+ -e '/^#[ ]*endif/b' \
+ -e 's/^[ ]*#.*//' \
+ %s | %s -C %s %s",
+#ifdef LOC_SED
+ LOC_SED,
+#else
+ "sed",
+#endif
+ (doextract ? "-e '1,/^#/d\n'" : ""),
+#endif
+ scriptname, tokenbuf, SvPV(sv, na), CPPMINUS);
+ doextract = FALSE;
+#ifdef IAMSUID /* actually, this is caught earlier */
+ if (euid != uid && !euid) { /* if running suidperl */
+#ifdef HAS_SETEUID
+ (void)seteuid(uid); /* musn't stay setuid root */
+#else
+#ifdef HAS_SETREUID
+ (void)setreuid((Uid_t)-1, uid);
+#else
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1, uid, (Uid_t)-1);
+#else
+ setuid(uid);
+#endif
+#endif
+#endif
+ if (geteuid() != uid)
+ croak("Can't do seteuid!\n");
+ }
+#endif /* IAMSUID */
+ rsfp = my_popen(buf,"r");
+ }
+ else if (!*scriptname) {
+ forbid_setid("program input from stdin");
+ rsfp = PerlIO_stdin();
+ }
+ else {
+ rsfp = PerlIO_open(scriptname,"r");
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ if (rsfp)
+ fcntl(PerlIO_fileno(rsfp),F_SETFD,1); /* ensure close-on-exec */
+#endif
+ }
+ if (e_tmpname) {
+ e_fp = rsfp;
+ }
+ if (!rsfp) {
+#ifdef DOSUID
+#ifndef IAMSUID /* in case script is not readable before setuid */
+ if (euid && Stat(SvPVX(GvSV(curcop->cop_filegv)),&statbuf) >= 0 &&
+ statbuf.st_mode & (S_ISUID|S_ISGID)) {
+ (void)sprintf(buf, "%s/sperl%s", BIN_EXP, patchlevel);
+ execv(buf, origargv); /* try again */
+ croak("Can't do setuid\n");
+ }
+#endif
+#endif
+ croak("Can't open perl script \"%s\": %s\n",
+ SvPVX(GvSV(curcop->cop_filegv)), Strerror(errno));
+ }
+}
+
+static void
+validate_suid(validarg, scriptname)
+char *validarg;
+char *scriptname;
+{
+ int which;
+
+ /* do we need to emulate setuid on scripts? */
/* This code is for those BSD systems that have setuid #! scripts disabled
* in the kernel because of a security problem. Merely defining DOSUID
* DOSUID must be defined in both perl and suidperl, and IAMSUID must
* be defined in suidperl only. suidperl must be setuid root. The
* Configure script will set this up for you if you want it.
- *
- * There is also the possibility of have a script which is running
- * set-id due to a C wrapper. We want to do the TAINT checks
- * on these set-id scripts, but don't want to have the overhead of
- * them in normal perl, and can't use suidperl because it will lose
- * the effective uid info, so we have an additional non-setuid root
- * version called taintperl or tperlN.NNN that just does the TAINT checks.
*/
#ifdef DOSUID
- if (fstat(fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */
- fatal("Can't stat script \"%s\"",origfilename);
- if (statbuf.st_mode & (S_ISUID|S_ISGID)) {
- int len;
+ char *s, *s2;
+
+ if (Fstat(PerlIO_fileno(rsfp),&statbuf) < 0) /* normal stat is insecure */
+ croak("Can't stat script \"%s\"",origfilename);
+ if (fdscript < 0 && statbuf.st_mode & (S_ISUID|S_ISGID)) {
+ I32 len;
#ifdef IAMSUID
#ifndef HAS_SETREUID
* But I don't think it's too important. The manual lies when
* it says access() is useful in setuid programs.
*/
- if (access(stab_val(curcmd->c_filestab)->str_ptr,1)) /*double check*/
- fatal("Permission denied");
+ if (access(SvPVX(GvSV(curcop->cop_filegv)),1)) /*double check*/
+ croak("Permission denied");
#else
/* If we can swap euid and uid, then we can determine access rights
* with a simple stat of the file, and then compare device and
{
struct stat tmpstatbuf;
- if (setreuid(euid,uid) < 0 || getuid() != euid || geteuid() != uid)
- fatal("Can't swap uid and euid"); /* really paranoid */
- if (stat(stab_val(curcmd->c_filestab)->str_ptr,&tmpstatbuf) < 0)
- fatal("Permission denied"); /* testing full pathname here */
+ if (
+#ifdef HAS_SETREUID
+ setreuid(euid,uid) < 0
+#else
+# if HAS_SETRESUID
+ setresuid(euid,uid,(Uid_t)-1) < 0
+# endif
+#endif
+ || getuid() != euid || geteuid() != uid)
+ croak("Can't swap uid and euid"); /* really paranoid */
+ if (Stat(SvPVX(GvSV(curcop->cop_filegv)),&tmpstatbuf) < 0)
+ croak("Permission denied"); /* testing full pathname here */
if (tmpstatbuf.st_dev != statbuf.st_dev ||
tmpstatbuf.st_ino != statbuf.st_ino) {
- (void)fclose(rsfp);
- if (rsfp = mypopen("/bin/mail root","w")) { /* heh, heh */
- fprintf(rsfp,
-"User %d tried to run dev %d ino %d in place of dev %d ino %d!\n\
-(Filename of set-id script was %s, uid %d gid %d.)\n\nSincerely,\nperl\n",
- uid,tmpstatbuf.st_dev, tmpstatbuf.st_ino,
- statbuf.st_dev, statbuf.st_ino,
- stab_val(curcmd->c_filestab)->str_ptr,
- statbuf.st_uid, statbuf.st_gid);
- (void)mypclose(rsfp);
+ (void)PerlIO_close(rsfp);
+ if (rsfp = my_popen("/bin/mail root","w")) { /* heh, heh */
+ PerlIO_printf(rsfp,
+"User %ld tried to run dev %ld ino %ld in place of dev %ld ino %ld!\n\
+(Filename of set-id script was %s, uid %ld gid %ld.)\n\nSincerely,\nperl\n",
+ (long)uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
+ (long)statbuf.st_dev, (long)statbuf.st_ino,
+ SvPVX(GvSV(curcop->cop_filegv)),
+ (long)statbuf.st_uid, (long)statbuf.st_gid);
+ (void)my_pclose(rsfp);
}
- fatal("Permission denied\n");
+ croak("Permission denied\n");
}
- if (setreuid(uid,euid) < 0 || getuid() != uid || geteuid() != euid)
- fatal("Can't reswap uid and euid");
+ if (
+#ifdef HAS_SETREUID
+ setreuid(uid,euid) < 0
+#else
+# if defined(HAS_SETRESUID)
+ setresuid(uid,euid,(Uid_t)-1) < 0
+# endif
+#endif
+ || getuid() != uid || geteuid() != euid)
+ croak("Can't reswap uid and euid");
if (!cando(S_IXUSR,FALSE,&statbuf)) /* can real uid exec? */
- fatal("Permission denied\n");
+ croak("Permission denied\n");
}
#endif /* HAS_SETREUID */
#endif /* IAMSUID */
if (!S_ISREG(statbuf.st_mode))
- fatal("Permission denied");
+ croak("Permission denied");
if (statbuf.st_mode & S_IWOTH)
- fatal("Setuid/gid script is writable by world");
+ croak("Setuid/gid script is writable by world");
doswitches = FALSE; /* -s is insecure in suid */
- curcmd->c_line++;
- if (fgets(tokenbuf,sizeof tokenbuf, rsfp) == Nullch ||
- strnNE(tokenbuf,"#!",2) ) /* required even on Sys V */
- fatal("No #! line");
- s = tokenbuf+2;
+ curcop->cop_line++;
+ if (sv_gets(linestr, rsfp, 0) == Nullch ||
+ strnNE(SvPV(linestr,na),"#!",2) ) /* required even on Sys V */
+ croak("No #! line");
+ s = SvPV(linestr,na)+2;
if (*s == ' ') s++;
- while (!isspace(*s)) s++;
- if (strnNE(s-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
- fatal("Not a perl script");
+ while (!isSPACE(*s)) s++;
+ for (s2 = s; (s2 > SvPV(linestr,na)+2 &&
+ (isDIGIT(s2[-1]) || strchr("._-", s2[-1]))); s2--) ;
+ if (strnNE(s2-4,"perl",4) && strnNE(s-9,"perl",4)) /* sanity check */
+ croak("Not a perl script");
while (*s == ' ' || *s == '\t') s++;
/*
* #! arg must be what we saw above. They can invoke it by
*/
len = strlen(validarg);
if (strEQ(validarg," PHOOEY ") ||
- strnNE(s,validarg,len) || !isspace(s[len]))
- fatal("Args must match #! line");
+ strnNE(s,validarg,len) || !isSPACE(s[len]))
+ croak("Args must match #! line");
#ifndef IAMSUID
if (euid != uid && (statbuf.st_mode & S_ISUID) &&
euid == statbuf.st_uid)
if (!do_undump)
- fatal("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
+ croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
#endif /* IAMSUID */
if (euid) { /* oops, we're not the setuid root perl */
- (void)fclose(rsfp);
+ (void)PerlIO_close(rsfp);
#ifndef IAMSUID
- (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel);
+ (void)sprintf(buf, "%s/sperl%s", BIN_EXP, patchlevel);
execv(buf, origargv); /* try again */
#endif
- fatal("Can't do setuid\n");
+ croak("Can't do setuid\n");
}
- if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid)
+ if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid) {
#ifdef HAS_SETEGID
(void)setegid(statbuf.st_gid);
#else
#ifdef HAS_SETREGID
- (void)setregid((GIDTYPE)-1,statbuf.st_gid);
+ (void)setregid((Gid_t)-1,statbuf.st_gid);
+#else
+#ifdef HAS_SETRESGID
+ (void)setresgid((Gid_t)-1,statbuf.st_gid,(Gid_t)-1);
#else
setgid(statbuf.st_gid);
#endif
#endif
+#endif
+ if (getegid() != statbuf.st_gid)
+ croak("Can't do setegid!\n");
+ }
if (statbuf.st_mode & S_ISUID) {
if (statbuf.st_uid != euid)
#ifdef HAS_SETEUID
(void)seteuid(statbuf.st_uid); /* all that for this */
#else
#ifdef HAS_SETREUID
- (void)setreuid((UIDTYPE)-1,statbuf.st_uid);
+ (void)setreuid((Uid_t)-1,statbuf.st_uid);
+#else
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1,statbuf.st_uid,(Uid_t)-1);
#else
setuid(statbuf.st_uid);
#endif
#endif
+#endif
+ if (geteuid() != statbuf.st_uid)
+ croak("Can't do seteuid!\n");
}
- else if (uid) /* oops, mustn't run as root */
+ else if (uid) { /* oops, mustn't run as root */
#ifdef HAS_SETEUID
- (void)seteuid((UIDTYPE)uid);
+ (void)seteuid((Uid_t)uid);
#else
#ifdef HAS_SETREUID
- (void)setreuid((UIDTYPE)-1,(UIDTYPE)uid);
+ (void)setreuid((Uid_t)-1,(Uid_t)uid);
#else
- setuid((UIDTYPE)uid);
+#ifdef HAS_SETRESUID
+ (void)setresuid((Uid_t)-1,(Uid_t)uid,(Uid_t)-1);
+#else
+ setuid((Uid_t)uid);
+#endif
#endif
#endif
- uid = (int)getuid();
- euid = (int)geteuid();
- gid = (int)getgid();
- egid = (int)getegid();
+ if (geteuid() != uid)
+ croak("Can't do seteuid!\n");
+ }
+ init_ids();
if (!cando(S_IXUSR,TRUE,&statbuf))
- fatal("Permission denied\n"); /* they can't do this */
+ croak("Permission denied\n"); /* they can't do this */
}
#ifdef IAMSUID
else if (preprocess)
- fatal("-P not allowed for setuid/setgid script\n");
+ croak("-P not allowed for setuid/setgid script\n");
+ else if (fdscript >= 0)
+ croak("fd script not allowed in suidperl\n");
else
- fatal("Script is not setuid/setgid in suidperl\n");
-#else
-#ifndef TAINT /* we aren't taintperl or suidperl */
- /* script has a wrapper--can't run suidperl or we lose euid */
- else if (euid != uid || egid != gid) {
- (void)fclose(rsfp);
- (void)sprintf(buf, "%s/tperl%s", BIN, patchlevel);
- execv(buf, origargv); /* try again */
- fatal("Can't run setuid script with taint checks");
- }
-#endif /* TAINT */
+ croak("Script is not setuid/setgid in suidperl\n");
+
+ /* We absolutely must clear out any saved ids here, so we */
+ /* exec the real perl, substituting fd script for scriptname. */
+ /* (We pass script name as "subdir" of fd, which perl will grok.) */
+ PerlIO_rewind(rsfp);
+ lseek(PerlIO_fileno(rsfp),(Off_t)0,0); /* just in case rewind didn't */
+ for (which = 1; origargv[which] && origargv[which] != scriptname; which++) ;
+ if (!origargv[which])
+ croak("Permission denied");
+ (void)sprintf(buf, "/dev/fd/%d/%.127s", PerlIO_fileno(rsfp), origargv[which]);
+ origargv[which] = buf;
+
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+ fcntl(PerlIO_fileno(rsfp),F_SETFD,0); /* ensure no close-on-exec */
+#endif
+
+ (void)sprintf(tokenbuf, "%s/perl%s", BIN_EXP, patchlevel);
+ execv(tokenbuf, origargv); /* try again */
+ croak("Can't do setuid\n");
#endif /* IAMSUID */
#else /* !DOSUID */
-#ifndef TAINT /* we aren't taintperl or suidperl */
if (euid != uid || egid != gid) { /* (suidperl doesn't exist, in fact) */
#ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
- fstat(fileno(rsfp),&statbuf); /* may be either wrapped or real suid */
+ Fstat(PerlIO_fileno(rsfp),&statbuf); /* may be either wrapped or real suid */
if ((euid != uid && euid == statbuf.st_uid && statbuf.st_mode & S_ISUID)
||
(egid != gid && egid == statbuf.st_gid && statbuf.st_mode & S_ISGID)
)
if (!do_undump)
- fatal("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
+ croak("YOU HAVEN'T DISABLED SET-ID SCRIPTS IN THE KERNEL YET!\n\
FIX YOUR KERNEL, PUT A C WRAPPER AROUND THIS SCRIPT, OR USE -u AND UNDUMP!\n");
#endif /* SETUID_SCRIPTS_ARE_SECURE_NOW */
/* not set-id, must be wrapped */
- (void)fclose(rsfp);
- (void)sprintf(buf, "%s/tperl%s", BIN, patchlevel);
- execv(buf, origargv); /* try again */
- fatal("Can't run setuid script with taint checks");
}
-#endif /* TAINT */
#endif /* DOSUID */
+}
-#if !defined(IAMSUID) && !defined(TAINT)
+static void
+find_beginning()
+{
+ register char *s, *s2;
/* skip forward in input to the real script? */
+ forbid_setid("-x");
while (doextract) {
- if ((s = str_gets(linestr, rsfp, 0)) == Nullch)
- fatal("No Perl script found in input\n");
- if (*s == '#' && s[1] == '!' && instr(s,"perl")) {
- ungetc('\n',rsfp); /* to keep line count right */
+ if ((s = sv_gets(linestr, rsfp, 0)) == Nullch)
+ croak("No Perl script found in input\n");
+ if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
+ PerlIO_ungetc(rsfp, '\n'); /* to keep line count right */
doextract = FALSE;
- if (s = instr(s,"perl -")) {
- s += 6;
- while (s = moreswitches(s)) ;
+ while (*s && !(isSPACE (*s) || *s == '#')) s++;
+ s2 = s;
+ while (*s == ' ' || *s == '\t') s++;
+ if (*s++ == '-') {
+ while (isDIGIT(s2[-1]) || strchr("-._", s2[-1])) s2--;
+ if (strnEQ(s2-4,"perl",4))
+ /*SUPPRESS 530*/
+ while (s = moreswitches(s)) ;
}
if (cddir && chdir(cddir) < 0)
- fatal("Can't chdir to %s",cddir);
- }
- }
-#endif /* !defined(IAMSUID) && !defined(TAINT) */
-
- defstab = stabent("_",TRUE);
-
- if (perldb) {
- debstash = hnew(0);
- stab_xhash(stabent("_DB",TRUE)) = debstash;
- curstash = debstash;
- dbargs = stab_xarray(aadd((tmpstab = stabent("args",TRUE))));
- tmpstab->str_pok |= SP_MULTI;
- dbargs->ary_flags = 0;
- subname = str_make("main",4);
- DBstab = stabent("DB",TRUE);
- DBstab->str_pok |= SP_MULTI;
- DBline = stabent("dbline",TRUE);
- DBline->str_pok |= SP_MULTI;
- DBsub = hadd(tmpstab = stabent("sub",TRUE));
- tmpstab->str_pok |= SP_MULTI;
- DBsingle = stab_val((tmpstab = stabent("single",TRUE)));
- tmpstab->str_pok |= SP_MULTI;
- DBtrace = stab_val((tmpstab = stabent("trace",TRUE)));
- tmpstab->str_pok |= SP_MULTI;
- DBsignal = stab_val((tmpstab = stabent("signal",TRUE)));
- tmpstab->str_pok |= SP_MULTI;
- curstash = defstash;
+ croak("Can't chdir to %s",cddir);
+ }
}
+}
- /* init tokener */
+static void
+init_ids()
+{
+ uid = (int)getuid();
+ euid = (int)geteuid();
+ gid = (int)getgid();
+ egid = (int)getegid();
+#ifdef VMS
+ uid |= gid << 16;
+ euid |= egid << 16;
+#endif
+ tainting |= (uid && (euid != uid || egid != gid));
+}
- bufend = bufptr = str_get(linestr);
+static void
+forbid_setid(s)
+char *s;
+{
+ if (euid != uid)
+ croak("No %s allowed while running setuid", s);
+ if (egid != gid)
+ croak("No %s allowed while running setgid", s);
+}
- savestack = anew(Nullstab); /* for saving non-local values */
- stack = anew(Nullstab); /* for saving non-local values */
- stack->ary_flags = 0; /* not a real array */
- afill(stack,63); afill(stack,-1); /* preextend stack */
- afill(savestack,63); afill(savestack,-1);
+static void
+init_debugger()
+{
+ curstash = debstash;
+ dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
+ AvREAL_off(dbargs);
+ DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
+ DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
+ DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
+ DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(DBsingle, 0);
+ DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(DBtrace, 0);
+ DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
+ sv_setiv(DBsignal, 0);
+ curstash = defstash;
+}
- /* now parse the script */
+static void
+init_stacks()
+{
+ curstack = newAV();
+ mainstack = curstack; /* remember in case we switch stacks */
+ AvREAL_off(curstack); /* not a real array */
+ av_extend(curstack,127);
- error_count = 0;
- if (yyparse() || error_count) {
- if (minus_c)
- fatal("%s had compilation errors.\n", origfilename);
- else {
- fatal("Execution of %s aborted due to compilation errors.\n",
- origfilename);
- }
- }
+ stack_base = AvARRAY(curstack);
+ stack_sp = stack_base;
+ stack_max = stack_base + 127;
- New(50,loop_stack,128,struct loop);
-#ifdef DEBUGGING
- if (debug) {
+ cxstack_max = 8192 / sizeof(CONTEXT) - 2; /* Use most of 8K. */
+ New(50,cxstack,cxstack_max + 1,CONTEXT);
+ cxstack_ix = -1;
+
+ New(50,tmps_stack,128,SV*);
+ tmps_ix = -1;
+ tmps_max = 128;
+
+ DEBUG( {
New(51,debname,128,char);
New(52,debdelim,128,char);
- }
-#endif
- curstash = defstash;
+ } )
- preprocess = FALSE;
- if (e_fp) {
- e_fp = Nullfp;
- (void)UNLINK(e_tmpname);
+ /*
+ * The following stacks almost certainly should be per-interpreter,
+ * but for now they're not. XXX
+ */
+
+ if (markstack) {
+ markstack_ptr = markstack;
+ } else {
+ New(54,markstack,64,I32);
+ markstack_ptr = markstack;
+ markstack_max = markstack + 64;
}
- /* initialize everything that won't change if we undump */
+ if (scopestack) {
+ scopestack_ix = 0;
+ } else {
+ New(54,scopestack,32,I32);
+ scopestack_ix = 0;
+ scopestack_max = 32;
+ }
- if (sigstab = stabent("SIG",allstabs)) {
- sigstab->str_pok |= SP_MULTI;
- (void)hadd(sigstab);
+ if (savestack) {
+ savestack_ix = 0;
+ } else {
+ New(54,savestack,128,ANY);
+ savestack_ix = 0;
+ savestack_max = 128;
}
- magicalize("!#?^~=-%.+&*()<>,\\/[|`':\004\t\020\024\027\006");
- userinit(); /* in case linked C routines want magical variables */
-
- amperstab = stabent("&",allstabs);
- leftstab = stabent("`",allstabs);
- rightstab = stabent("'",allstabs);
- sawampersand = (amperstab || leftstab || rightstab);
- if (tmpstab = stabent(":",allstabs))
- str_set(STAB_STR(tmpstab),chopset);
- if (tmpstab = stabent("\024",allstabs))
- time(&basetime);
-
- /* these aren't necessarily magical */
- if (tmpstab = stabent(";",allstabs))
- str_set(STAB_STR(tmpstab),"\034");
- if (tmpstab = stabent("]",allstabs)) {
- str = STAB_STR(tmpstab);
- str_set(str,rcsid);
- str->str_u.str_nval = atof(patchlevel);
- str->str_nok = 1;
+ if (retstack) {
+ retstack_ix = 0;
+ } else {
+ New(54,retstack,16,OP*);
+ retstack_ix = 0;
+ retstack_max = 16;
}
- str_nset(stab_val(stabent("\"", TRUE)), " ", 1);
-
- stdinstab = stabent("STDIN",TRUE);
- stdinstab->str_pok |= SP_MULTI;
- stab_io(stdinstab) = stio_new();
- stab_io(stdinstab)->ifp = stdin;
- tmpstab = stabent("stdin",TRUE);
- stab_io(tmpstab) = stab_io(stdinstab);
- tmpstab->str_pok |= SP_MULTI;
-
- tmpstab = stabent("STDOUT",TRUE);
- tmpstab->str_pok |= SP_MULTI;
- stab_io(tmpstab) = stio_new();
- stab_io(tmpstab)->ofp = stab_io(tmpstab)->ifp = stdout;
- defoutstab = tmpstab;
- tmpstab = stabent("stdout",TRUE);
- stab_io(tmpstab) = stab_io(defoutstab);
- tmpstab->str_pok |= SP_MULTI;
-
- curoutstab = stabent("STDERR",TRUE);
- curoutstab->str_pok |= SP_MULTI;
- stab_io(curoutstab) = stio_new();
- stab_io(curoutstab)->ofp = stab_io(curoutstab)->ifp = stderr;
- tmpstab = stabent("stderr",TRUE);
- stab_io(tmpstab) = stab_io(curoutstab);
- tmpstab->str_pok |= SP_MULTI;
- curoutstab = defoutstab; /* switch back to STDOUT */
-
- statname = Str_new(66,0); /* last filename we did stat on */
+}
- /* now that script is parsed, we can modify record separator */
+static void
+nuke_stacks()
+{
+ Safefree(cxstack);
+ Safefree(tmps_stack);
+ DEBUG( {
+ Safefree(debname);
+ Safefree(debdelim);
+ } )
+}
- rs = nrs;
- rslen = nrslen;
- rschar = nrschar;
- str_nset(stab_val(stabent("/", TRUE)), rs, rslen);
+static PerlIO *tmpfp; /* moved outside init_lexer() because of UNICOS bug */
- if (do_undump)
- my_unexec();
+static void
+init_lexer()
+{
+ tmpfp = rsfp;
+ lex_start(linestr);
+ rsfp = tmpfp;
+ subname = newSVpv("main",4);
+}
+
+static void
+init_predump_symbols()
+{
+ GV *tmpgv;
+ GV *othergv;
+
+ sv_setpvn(GvSV(gv_fetchpv("\"", TRUE, SVt_PV)), " ", 1);
+
+ stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
+ GvMULTI_on(stdingv);
+ IoIFP(GvIOp(stdingv)) = PerlIO_stdin();
+ tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(stdingv));
+
+ tmpgv = gv_fetchpv("STDOUT",TRUE, SVt_PVIO);
+ GvMULTI_on(tmpgv);
+ IoOFP(GvIOp(tmpgv)) = IoIFP(GvIOp(tmpgv)) = PerlIO_stdout();
+ setdefout(tmpgv);
+ tmpgv = gv_fetchpv("stdout",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(defoutgv));
+
+ othergv = gv_fetchpv("STDERR",TRUE, SVt_PVIO);
+ GvMULTI_on(othergv);
+ IoOFP(GvIOp(othergv)) = IoIFP(GvIOp(othergv)) = PerlIO_stderr();
+ tmpgv = gv_fetchpv("stderr",TRUE, SVt_PV);
+ GvMULTI_on(tmpgv);
+ GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(othergv));
+
+ statname = NEWSV(66,0); /* last filename we did stat on */
+
+ if (!osname)
+ osname = savepv(OSNAME);
+}
+
+static void
+init_postdump_symbols(argc,argv,env)
+register int argc;
+register char **argv;
+register char **env;
+{
+ char *s;
+ SV *sv;
+ GV* tmpgv;
- just_doit: /* come here if running an undumped a.out */
argc--,argv++; /* skip name of script */
if (doswitches) {
for (; argc > 0 && **argv == '-'; argc--,argv++) {
+ if (!argv[0][1])
+ break;
if (argv[0][1] == '-') {
argc--,argv++;
break;
}
- if (s = index(argv[0], '=')) {
+ if (s = strchr(argv[0], '=')) {
*s++ = '\0';
- str_set(stab_val(stabent(argv[0]+1,TRUE)),s);
+ sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
}
else
- str_numset(stab_val(stabent(argv[0]+1,TRUE)),(double)1.0);
+ sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
}
}
-#ifdef TAINT
- tainted = 1;
-#endif
- if (tmpstab = stabent("0",allstabs)) {
- str_set(stab_val(tmpstab),origfilename);
- magicname("0", Nullch, 0);
+ toptarget = NEWSV(0,0);
+ sv_upgrade(toptarget, SVt_PVFM);
+ sv_setpvn(toptarget, "", 0);
+ bodytarget = NEWSV(0,0);
+ sv_upgrade(bodytarget, SVt_PVFM);
+ sv_setpvn(bodytarget, "", 0);
+ formtarget = bodytarget;
+
+ TAINT;
+ if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
+ sv_setpv(GvSV(tmpgv),origfilename);
+ magicname("0", "0", 1);
}
- if (tmpstab = stabent("\030",allstabs))
- str_set(stab_val(tmpstab),origargv[0]);
- if (argvstab = stabent("ARGV",allstabs)) {
- argvstab->str_pok |= SP_MULTI;
- (void)aadd(argvstab);
- aclear(stab_array(argvstab));
+ if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
+ sv_setpv(GvSV(tmpgv),origargv[0]);
+ if (argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
+ GvMULTI_on(argvgv);
+ (void)gv_AVadd(argvgv);
+ av_clear(GvAVn(argvgv));
for (; argc > 0; argc--,argv++) {
- (void)apush(stab_array(argvstab),str_make(argv[0],0));
+ av_push(GvAVn(argvgv),newSVpv(argv[0],0));
}
}
-#ifdef TAINT
- (void) stabent("ENV",TRUE); /* must test PATH and IFS */
-#endif
- if (envstab = stabent("ENV",allstabs)) {
- envstab->str_pok |= SP_MULTI;
- (void)hadd(envstab);
- hclear(stab_hash(envstab), FALSE);
- if (env != environ)
+ if (envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
+ HV *hv;
+ GvMULTI_on(envgv);
+ hv = GvHVn(envgv);
+ hv_clear(hv);
+#ifndef VMS /* VMS doesn't have environ array */
+ /* Note that if the supplied env parameter is actually a copy
+ of the global environ then it may now point to free'd memory
+ if the environment has been modified since. To avoid this
+ problem we treat env==NULL as meaning 'use the default'
+ */
+ if (!env)
+ env = environ;
+ if (env != environ) {
environ[0] = Nullch;
+ hv_magic(hv, envgv, 'E');
+ }
for (; *env; env++) {
- if (!(s = index(*env,'=')))
+ if (!(s = strchr(*env,'=')))
continue;
*s++ = '\0';
- str = str_make(s--,0);
- str_magic(str, envstab, 'E', *env, s - *env);
- (void)hstore(stab_hash(envstab), *env, s - *env, str, 0);
+ sv = newSVpv(s--,0);
+ sv_magic(sv, sv, 'e', *env, s - *env);
+ (void)hv_store(hv, *env, s - *env, sv, 0);
*s = '=';
}
- }
-#ifdef TAINT
- tainted = 0;
#endif
- if (tmpstab = stabent("$",allstabs))
- str_numset(STAB_STR(tmpstab),(double)getpid());
-
- if (dowarn) {
- stab_check('A','Z');
- stab_check('a','z');
- }
-
- if (setjmp(top_env)) /* sets goto_targ on longjump */
- loop_ptr = -1; /* start label stack again */
-
-#ifdef DEBUGGING
- if (debug & 1024)
- dump_all();
- if (debug)
- fprintf(stderr,"\nEXECUTING...\n\n");
+#ifdef DYNAMIC_ENV_FETCH
+ HvNAME(hv) = savepv(ENV_HV_NAME);
#endif
-
- if (minus_c) {
- fprintf(stderr,"%s syntax OK\n", origfilename);
- exit(0);
+ hv_magic(hv, envgv, 'E');
}
-
- /* do it */
-
- (void) cmd_exec(main_root,G_SCALAR,-1);
-
- if (goto_targ)
- fatal("Can't find label \"%s\"--aborting",goto_targ);
- exit(0);
- /* NOTREACHED */
+ TAINT_NOT;
+ if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
+ sv_setiv(GvSV(tmpgv), (IV)getpid());
}
-void
-magicalize(list)
-register char *list;
+static void
+init_perllib()
{
- char sym[2];
+ char *s;
+ if (!tainting) {
+#ifndef VMS
+ s = getenv("PERL5LIB");
+ if (s)
+ incpush(s, TRUE);
+ else
+ incpush(getenv("PERLLIB"), FALSE);
+#else /* VMS */
+ /* Treat PERL5?LIB as a possible search list logical name -- the
+ * "natural" VMS idiom for a Unix path string. We allow each
+ * element to be a set of |-separated directories for compatibility.
+ */
+ char buf[256];
+ int idx = 0;
+ if (my_trnlnm("PERL5LIB",buf,0))
+ do { incpush(buf,TRUE); } while (my_trnlnm("PERL5LIB",buf,++idx));
+ else
+ while (my_trnlnm("PERLLIB",buf,idx++)) incpush(buf,FALSE);
+#endif /* VMS */
+ }
- sym[1] = '\0';
- while (*sym = *list++)
- magicname(sym, Nullch, 0);
-}
+/* Use the ~-expanded versions of APPLIB (undocumented),
+ ARCHLIB PRIVLIB SITEARCH SITELIB and OLDARCHLIB
+*/
+#ifdef APPLLIB_EXP
+ incpush(APPLLIB_EXP, FALSE);
+#endif
-void
-magicname(sym,name,namlen)
-char *sym;
-char *name;
-int namlen;
-{
- register STAB *stab;
+#ifdef ARCHLIB_EXP
+ incpush(ARCHLIB_EXP, FALSE);
+#endif
+#ifndef PRIVLIB_EXP
+#define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
+#endif
+ incpush(PRIVLIB_EXP, FALSE);
- if (stab = stabent(sym,allstabs)) {
- stab_flags(stab) = SF_VMAGIC;
- str_magic(stab_val(stab), stab, 0, name, namlen);
- }
+#ifdef SITEARCH_EXP
+ incpush(SITEARCH_EXP, FALSE);
+#endif
+#ifdef SITELIB_EXP
+ incpush(SITELIB_EXP, FALSE);
+#endif
+#ifdef OLDARCHLIB_EXP /* 5.00[01] compatibility */
+ incpush(OLDARCHLIB_EXP, FALSE);
+#endif
+
+ if (!tainting)
+ incpush(".", FALSE);
}
-void
-savelines(array, str)
-ARRAY *array;
-STR *str;
+#if defined(DOSISH)
+# define PERLLIB_SEP ';'
+#else
+# if defined(VMS)
+# define PERLLIB_SEP '|'
+# else
+# define PERLLIB_SEP ':'
+# endif
+#endif
+#ifndef PERLLIB_MANGLE
+# define PERLLIB_MANGLE(s,n) (s)
+#endif
+
+static void
+incpush(p, addsubdirs)
+char *p;
+int addsubdirs;
{
- register char *s = str->str_ptr;
- register char *send = str->str_ptr + str->str_cur;
- register char *t;
- register int line = 1;
-
- while (s && s < send) {
- STR *tmpstr = Str_new(85,0);
-
- t = index(s, '\n');
- if (t)
- t++;
- else
- t = send;
-
- str_nset(tmpstr, s, t - s);
- astore(array, line++, tmpstr);
- s = t;
+ SV *subdir = Nullsv;
+ static char *archpat_auto;
+
+ if (!p)
+ return;
+
+ if (addsubdirs) {
+ subdir = newSV(0);
+ if (!archpat_auto) {
+ STRLEN len = (sizeof(ARCHNAME) + strlen(patchlevel)
+ + sizeof("//auto"));
+ New(55, archpat_auto, len, char);
+ sprintf(archpat_auto, "/%s/%s/auto", ARCHNAME, patchlevel);
+#ifdef VMS
+ for (len = sizeof(ARCHNAME) + 2;
+ archpat_auto[len] != '\0' && archpat_auto[len] != '/'; len++)
+ if (archpat_auto[len] == '.') archpat_auto[len] = '_';
+#endif
+ }
}
-}
-/* this routine is in perl.c by virtue of being sort of an alternate main() */
+ /* Break at all separators */
+ while (p && *p) {
+ SV *libdir = newSV(0);
+ char *s;
-int
-do_eval(str,optype,stash,gimme,arglast)
-STR *str;
-int optype;
-HASH *stash;
-int gimme;
-int *arglast;
-{
- STR **st = stack->ary_array;
- int retval;
- CMD *myroot = Nullcmd;
- ARRAY *ar;
- int i;
- CMD * VOLATILE oldcurcmd = curcmd;
- VOLATILE int oldtmps_base = tmps_base;
- VOLATILE int oldsave = savestack->ary_fill;
- VOLATILE int oldperldb = perldb;
- SPAT * VOLATILE oldspat = curspat;
- SPAT * VOLATILE oldlspat = lastspat;
- static char *last_eval = Nullch;
- static CMD *last_root = Nullcmd;
- VOLATILE int sp = arglast[0];
- char *specfilename;
- char *tmpfilename;
- int parsing = 1;
-
- tmps_base = tmps_max;
- if (curstash != stash) {
- (void)savehptr(&curstash);
- curstash = stash;
- }
- str_set(stab_val(stabent("@",TRUE)),"");
- if (curcmd->c_line == 0) /* don't debug debugger... */
- perldb = FALSE;
- curcmd = &compiling;
- if (optype == O_EVAL) { /* normal eval */
- curcmd->c_filestab = fstab("(eval)");
- curcmd->c_line = 1;
- str_sset(linestr,str);
- str_cat(linestr,";\n"); /* be kind to them */
- if (perldb)
- savelines(stab_xarray(curcmd->c_filestab), linestr);
- }
- else {
- if (last_root && !in_eval) {
- Safefree(last_eval);
- last_eval = Nullch;
- cmd_free(last_root);
- last_root = Nullcmd;
+ /* skip any consecutive separators */
+ while ( *p == PERLLIB_SEP ) {
+ /* Uncomment the next line for PATH semantics */
+ /* av_push(GvAVn(incgv), newSVpv(".", 1)); */
+ p++;
}
- specfilename = str_get(str);
- str_set(linestr,"");
- if (optype == O_REQUIRE && &str_undef !=
- hfetch(stab_hash(incstab), specfilename, strlen(specfilename), 0)) {
- curcmd = oldcurcmd;
- tmps_base = oldtmps_base;
- st[++sp] = &str_yes;
- perldb = oldperldb;
- return sp;
+
+ if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
+ sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
+ (STRLEN)(s - p));
+ p = s + 1;
}
- tmpfilename = savestr(specfilename);
- if (index("/.", *tmpfilename))
- rsfp = fopen(tmpfilename,"r");
else {
- ar = stab_array(incstab);
- for (i = 0; i <= ar->ary_fill; i++) {
- (void)sprintf(buf, "%s/%s",
- str_get(afetch(ar,i,TRUE)), specfilename);
- rsfp = fopen(buf,"r");
- if (rsfp) {
- char *s = buf;
-
- if (*s == '.' && s[1] == '/')
- s += 2;
- Safefree(tmpfilename);
- tmpfilename = savestr(s);
- break;
- }
- }
- }
- curcmd->c_filestab = fstab(tmpfilename);
- Safefree(tmpfilename);
- tmpfilename = Nullch;
- if (!rsfp) {
- curcmd = oldcurcmd;
- tmps_base = oldtmps_base;
- if (optype == O_REQUIRE) {
- sprintf(tokenbuf,"Can't locate %s in @INC", specfilename);
- if (instr(tokenbuf,".h "))
- strcat(tokenbuf," (change .h to .ph maybe?)");
- if (instr(tokenbuf,".ph "))
- strcat(tokenbuf," (did you run h2ph?)");
- fatal("%s",tokenbuf);
- }
- if (gimme != G_ARRAY)
- st[++sp] = &str_undef;
- perldb = oldperldb;
- return sp;
- }
- curcmd->c_line = 0;
- }
- in_eval++;
- oldoldbufptr = oldbufptr = bufptr = str_get(linestr);
- bufend = bufptr + linestr->str_cur;
- if (++loop_ptr >= loop_max) {
- loop_max += 128;
- Renew(loop_stack, loop_max, struct loop);
- }
- loop_stack[loop_ptr].loop_label = "_EVAL_";
- loop_stack[loop_ptr].loop_sp = sp;
-#ifdef DEBUGGING
- if (debug & 4) {
- deb("(Pushing label #%d _EVAL_)\n", loop_ptr);
- }
-#endif
- eval_root = Nullcmd;
- if (setjmp(loop_stack[loop_ptr].loop_env)) {
- retval = 1;
- }
- else {
- error_count = 0;
- if (rsfp) {
- retval = yyparse();
- retval |= error_count;
- }
- else if (last_root && *bufptr == *last_eval && strEQ(bufptr,last_eval)){
- retval = 0;
- eval_root = last_root; /* no point in reparsing */
+ sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
+ p = Nullch; /* break out */
}
- else if (in_eval == 1) {
- if (last_root) {
- Safefree(last_eval);
- last_eval = Nullch;
- cmd_free(last_root);
- }
- last_root = Nullcmd;
- last_eval = savestr(bufptr);
- retval = yyparse();
- retval |= error_count;
- if (!retval)
- last_root = eval_root;
- if (!last_root) {
- Safefree(last_eval);
- last_eval = Nullch;
+
+ /*
+ * BEFORE pushing libdir onto @INC we may first push version- and
+ * archname-specific sub-directories.
+ */
+ if (addsubdirs) {
+ struct stat tmpstatbuf;
+#ifdef VMS
+ char *unix;
+ STRLEN len;
+
+ if ((unix = tounixspec_ts(SvPV(libdir,na),Nullch)) != Nullch) {
+ len = strlen(unix);
+ while (unix[len-1] == '/') len--; /* Cosmetic */
+ sv_usepvn(libdir,unix,len);
}
- }
- else
- retval = yyparse();
- }
- myroot = eval_root; /* in case cmd_exec does another eval! */
-
- if (retval) {
- st = stack->ary_array;
- sp = arglast[0];
- if (gimme != G_ARRAY)
- st[++sp] = &str_undef;
- if (parsing) {
-#ifndef MANGLEDPARSE
-#ifdef DEBUGGING
- if (debug & 128)
- fprintf(stderr,"Freeing eval_root %lx\n",(long)eval_root);
-#endif
- cmd_free(eval_root);
+ else
+ PerlIO_printf(PerlIO_stderr(),
+ "Failed to unixify @INC element \"%s\"\n",
+ SvPV(libdir,na));
#endif
- if (eval_root == last_root)
- last_root = Nullcmd;
- eval_root = myroot = Nullcmd;
+ /* .../archname/version if -d .../archname/version/auto */
+ sv_setsv(subdir, libdir);
+ sv_catpv(subdir, archpat_auto);
+ if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
+ S_ISDIR(tmpstatbuf.st_mode))
+ av_push(GvAVn(incgv),
+ newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
+
+ /* .../archname if -d .../archname/auto */
+ sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
+ strlen(patchlevel) + 1, "", 0);
+ if (Stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
+ S_ISDIR(tmpstatbuf.st_mode))
+ av_push(GvAVn(incgv),
+ newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
}
- if (rsfp) {
- fclose(rsfp);
- rsfp = 0;
- }
- }
- else {
- parsing = 0;
- sp = cmd_exec(eval_root,gimme,sp);
- st = stack->ary_array;
- for (i = arglast[0] + 1; i <= sp; i++)
- st[i] = str_mortal(st[i]);
- /* if we don't save result, free zaps it */
- if (in_eval != 1 && myroot != last_root)
- cmd_free(myroot);
- }
- perldb = oldperldb;
- in_eval--;
-#ifdef DEBUGGING
- if (debug & 4) {
- char *tmps = loop_stack[loop_ptr].loop_label;
- deb("(Popping label #%d %s)\n",loop_ptr,
- tmps ? tmps : "" );
+ /* finally push this lib directory on the end of @INC */
+ av_push(GvAVn(incgv), libdir);
}
-#endif
- loop_ptr--;
- tmps_base = oldtmps_base;
- curspat = oldspat;
- lastspat = oldlspat;
- if (savestack->ary_fill > oldsave) /* let them use local() */
- restorelist(oldsave);
-
- if (optype != O_EVAL) {
- if (retval) {
- if (optype == O_REQUIRE)
- fatal("%s", str_get(stab_val(stabent("@",TRUE))));
- }
- else {
- curcmd = oldcurcmd;
- if (gimme == G_SCALAR ? str_true(st[sp]) : sp > arglast[0]) {
- (void)hstore(stab_hash(incstab), specfilename,
- strlen(specfilename), str_smake(stab_val(curcmd->c_filestab)),
- 0 );
+
+ SvREFCNT_dec(subdir);
+}
+
+void
+call_list(oldscope, list)
+I32 oldscope;
+AV* list;
+{
+ Sigjmp_buf oldtop;
+ STRLEN len;
+ line_t oldline = curcop->cop_line;
+
+ Copy(top_env, oldtop, 1, Sigjmp_buf);
+
+ while (AvFILL(list) >= 0) {
+ CV *cv = (CV*)av_shift(list);
+
+ SAVEFREESV(cv);
+
+ switch (Sigsetjmp(top_env,1)) {
+ case 0: {
+ SV* atsv = GvSV(errgv);
+ PUSHMARK(stack_sp);
+ perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
+ (void)SvPV(atsv, len);
+ if (len) {
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ curcop = &compiling;
+ curcop->cop_line = oldline;
+ if (list == beginav)
+ sv_catpv(atsv, "BEGIN failed--compilation aborted");
+ else
+ sv_catpv(atsv, "END failed--cleanup aborted");
+ while (scopestack_ix > oldscope)
+ LEAVE;
+ croak("%s", SvPVX(atsv));
+ }
}
- else if (optype == O_REQUIRE)
- fatal("%s did not return a true value", specfilename);
+ break;
+ case 1:
+ STATUS_ALL_FAILURE;
+ /* FALL THROUGH */
+ case 2:
+ /* my_exit() was called */
+ while (scopestack_ix > oldscope)
+ LEAVE;
+ curstash = defstash;
+ if (endav)
+ call_list(oldscope, endav);
+ FREETMPS;
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ curcop = &compiling;
+ curcop->cop_line = oldline;
+ if (statusvalue) {
+ if (list == beginav)
+ croak("BEGIN failed--compilation aborted");
+ else
+ croak("END failed--cleanup aborted");
+ }
+ my_exit_jump();
+ /* NOTREACHED */
+ case 3:
+ if (!restartop) {
+ PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
+ FREETMPS;
+ break;
+ }
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+ curcop = &compiling;
+ curcop->cop_line = oldline;
+ Siglongjmp(top_env, 3);
}
}
- curcmd = oldcurcmd;
- return sp;
-}
-/* This routine handles any switches that can be given during run */
+ Copy(oldtop, top_env, 1, Sigjmp_buf);
+}
-static char *
-moreswitches(s)
-char *s;
+void
+my_exit(status)
+U32 status;
{
- int numlen;
-
- reswitch:
- switch (*s) {
- case '0':
- nrschar = scanoct(s, 4, &numlen);
- nrs = nsavestr("\n",1);
- *nrs = nrschar;
- if (nrschar > 0377) {
- nrslen = 0;
- nrs = "";
- }
- else if (!nrschar && numlen >= 2) {
- nrslen = 2;
- nrs = "\n\n";
- nrschar = '\n';
- }
- return s + numlen;
- case 'a':
- minus_a = TRUE;
- s++;
- return s;
- case 'c':
- minus_c = TRUE;
- s++;
- return s;
- case 'd':
-#ifdef TAINT
- if (euid != uid || egid != gid)
- fatal("No -d allowed in setuid scripts");
-#endif
- perldb = TRUE;
- s++;
- return s;
- case 'D':
-#ifdef DEBUGGING
-#ifdef TAINT
- if (euid != uid || egid != gid)
- fatal("No -D allowed in setuid scripts");
-#endif
- debug = atoi(s+1) | 32768;
-#else
- warn("Recompile perl with -DDEBUGGING to use -D switch\n");
-#endif
- for (s++; isdigit(*s); s++) ;
- return s;
- case 'i':
- inplace = savestr(s+1);
- for (s = inplace; *s && !isspace(*s); s++) ;
- *s = '\0';
- break;
- case 'I':
-#ifdef TAINT
- if (euid != uid || egid != gid)
- fatal("No -I allowed in setuid scripts");
-#endif
- if (*++s) {
- (void)apush(stab_array(incstab),str_make(s,0));
- }
- else
- fatal("No space allowed after -I");
+ switch (status) {
+ case 0:
+ STATUS_ALL_SUCCESS;
break;
- case 'l':
- minus_l = TRUE;
- s++;
- if (isdigit(*s)) {
- ors = savestr("\n");
- orslen = 1;
- *ors = scanoct(s, 3 + (*s == '0'), &numlen);
- s += numlen;
- }
- else {
- ors = nsavestr(nrs,nrslen);
- orslen = nrslen;
- }
- return s;
- case 'n':
- minus_n = TRUE;
- s++;
- return s;
- case 'p':
- minus_p = TRUE;
- s++;
- return s;
- case 'u':
- do_undump = TRUE;
- s++;
- return s;
- case 'U':
- unsafe = TRUE;
- s++;
- return s;
- case 'v':
- fputs("\nThis is perl, version 4.0\n\n",stdout);
- fputs(rcsid,stdout);
- fputs("\nCopyright (c) 1989, 1990, 1991, Larry Wall\n",stdout);
-#ifdef MSDOS
- fputs("MS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n",
- stdout);
-#ifdef OS2
- fputs("OS/2 port Copyright (c) 1990, Raymond Chen, Kai Uwe Rommel\n",
- stdout);
-#endif
-#endif
- fputs("\n\
-Perl may be copied only under the terms of either the Artistic License or the\n\
-GNU General Public License, which may be found in the Perl 4.0 source kit.\n",stdout);
-#ifdef MSDOS
- usage(origargv[0]);
-#endif
- exit(0);
- case 'w':
- dowarn = TRUE;
- s++;
- return s;
- case ' ':
- case '\n':
- case '\t':
+ case 1:
+ STATUS_ALL_FAILURE;
break;
default:
- fatal("Switch meaningless after -x: -%s",s);
+ STATUS_NATIVE_SET(status);
+ break;
}
- return Nullch;
+ my_exit_jump();
}
-/* compliments of Tom Christiansen */
-
-/* unexec() can be found in the Gnu emacs distribution */
-
-my_unexec()
+void
+my_failure_exit()
{
-#ifdef UNEXEC
- int status;
- extern int etext;
- static char dumpname[BUFSIZ];
- static char perlpath[256];
-
- sprintf (dumpname, "%s.perldump", origfilename);
- sprintf (perlpath, "%s/perl", BIN);
-
- status = unexec(dumpname, perlpath, &etext, sbrk(0), 0);
- if (status)
- fprintf(stderr, "unexec of %s into %s failed!\n", perlpath, dumpname);
- exit(status);
+#ifdef VMS
+ if (vaxc$errno & 1) {
+ if (STATUS_NATIVE & 1) /* fortuitiously includes "-1" */
+ STATUS_NATIVE_SET(44);
+ }
+ else {
+ if (!vaxc$errno && errno) /* unlikely */
+ STATUS_NATIVE_SET(44);
+ else
+ STATUS_NATIVE_SET(vaxc$errno);
+ }
#else
-#ifdef MSDOS
- abort(); /* nothing else to do */
-#else /* ! MSDOS */
-# ifndef SIGABRT
-# define SIGABRT SIGILL
-# endif
-# ifndef SIGILL
-# define SIGILL 6 /* blech */
-# endif
- kill(getpid(),SIGABRT); /* for use with undump */
-#endif /* ! MSDOS */
+ if (errno & 255)
+ STATUS_POSIX_SET(errno);
+ else if (STATUS_POSIX == 0)
+ STATUS_POSIX_SET(255);
#endif
+ my_exit_jump();
}
+static void
+my_exit_jump()
+{
+ register CONTEXT *cx;
+ I32 gimme;
+ SV **newsp;
+
+ if (e_tmpname) {
+ if (e_fp) {
+ PerlIO_close(e_fp);
+ e_fp = Nullfp;
+ }
+ (void)UNLINK(e_tmpname);
+ Safefree(e_tmpname);
+ e_tmpname = Nullch;
+ }
+
+ if (cxstack_ix >= 0) {
+ if (cxstack_ix > 0)
+ dounwind(0);
+ POPBLOCK(cx,curpm);
+ LEAVE;
+ }
+
+ Siglongjmp(top_env, 2);
+}
projects / p5sagit/p5-mst-13.2.git / blobdiff