This commit was generated by cvs2svn to compensate for changes in r38980,

which included commits to RCS files with non-trunk default branches.

1 files changed, 2983 insertions, 0 deletions

diff --git a/contrib/perl5/perl.c b/contrib/perl5/perl.c
new file mode 100644
index 0000000..e76d83a
--- /dev/null
+++ b/contrib/perl5/perl.c
@@ -0,0 +1,2983 @@
+/*    perl.c
+ *
+ *    Copyright (c) 1987-1998 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.
+ *
+ */
+
+/*
+ * "A ship then new they built for him/of mithril and of elven glass" --Bilbo
+ */
+
+#include "EXTERN.h"
+#include "perl.h"
+#include "patchlevel.h"
+
+/* XXX If this causes problems, set i_unistd=undef in the hint file.  */
+#ifdef I_UNISTD
+#include <unistd.h>
+#endif
+
+#if !defined(STANDARD_C) && !defined(HAS_GETENV_PROTOTYPE)
+char *getenv _((char *)); /* Usually in <stdlib.h> */
+#endif
+
+#ifdef I_FCNTL
+#include <fcntl.h>
+#endif
+#ifdef I_SYS_FILE
+#include <sys/file.h>
+#endif
+
+#ifdef IAMSUID
+#ifndef DOSUID
+#define DOSUID
+#endif
+#endif
+
+#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
+#ifdef DOSUID
+#undef DOSUID
+#endif
+#endif
+
+#ifdef PERL_OBJECT
+static I32 read_e_script _((CPerlObj* pPerl, int idx, SV *buf_sv, int maxlen));
+#else
+static void find_beginning _((void));
+static void forbid_setid _((char *));
+static void incpush _((char *, int));
+static void init_interp _((void));
+static void init_ids _((void));
+static void init_debugger _((void));
+static void init_lexer _((void));
+static void init_main_stash _((void));
+#ifdef USE_THREADS
+static struct perl_thread * init_main_thread _((void));
+#endif /* USE_THREADS */
+static void init_perllib _((void));
+static void init_postdump_symbols _((int, char **, char **));
+static void init_predump_symbols _((void));
+static void my_exit_jump _((void)) __attribute__((noreturn));
+static void nuke_stacks _((void));
+static void open_script _((char *, bool, SV *, int *fd));
+static void usage _((char *));
+static void validate_suid _((char *, char*, int));
+static I32 read_e_script _((int idx, SV *buf_sv, int maxlen));
+#endif
+
+#ifdef PERL_OBJECT
+CPerlObj* perl_alloc(IPerlMem* ipM, IPerlEnv* ipE, IPerlStdIO* ipStd,
+					     IPerlLIO* ipLIO, IPerlDir* ipD, IPerlSock* ipS, IPerlProc* ipP)
+{
+    CPerlObj* pPerl = new(ipM) CPerlObj(ipM, ipE, ipStd, ipLIO, ipD, ipS, ipP);
+    if(pPerl != NULL)
+	pPerl->Init();
+
+    return pPerl;
+}
+#else
+PerlInterpreter *
+perl_alloc(void)
+{
+    PerlInterpreter *sv_interp;
+
+    PL_curinterp = 0;
+    New(53, sv_interp, 1, PerlInterpreter);
+    return sv_interp;
+}
+#endif /* PERL_OBJECT */
+
+void
+#ifdef PERL_OBJECT
+CPerlObj::perl_construct(void)
+#else
+perl_construct(register PerlInterpreter *sv_interp)
+#endif
+{
+#ifdef USE_THREADS
+    int i;
+#ifndef FAKE_THREADS
+    struct perl_thread *thr;
+#endif /* FAKE_THREADS */
+#endif /* USE_THREADS */
+    
+#ifndef PERL_OBJECT
+    if (!(PL_curinterp = sv_interp))
+	return;
+#endif
+
+#ifdef MULTIPLICITY
+    ++PL_ninterps;
+    Zero(sv_interp, 1, PerlInterpreter);
+#endif
+
+   /* Init the real globals (and main thread)? */
+    if (!PL_linestr) {
+#ifdef USE_THREADS
+
+    	INIT_THREADS;
+#ifdef ALLOC_THREAD_KEY
+        ALLOC_THREAD_KEY;
+#else
+	if (pthread_key_create(&PL_thr_key, 0))
+	    croak("panic: pthread_key_create");
+#endif
+	MUTEX_INIT(&PL_sv_mutex);
+	/*
+	 * Safe to use basic SV functions from now on (though
+	 * not things like mortals or tainting yet).
+	 */
+	MUTEX_INIT(&PL_eval_mutex);
+	COND_INIT(&PL_eval_cond);
+	MUTEX_INIT(&PL_threads_mutex);
+	COND_INIT(&PL_nthreads_cond);
+#ifdef EMULATE_ATOMIC_REFCOUNTS
+	MUTEX_INIT(&PL_svref_mutex);
+#endif /* EMULATE_ATOMIC_REFCOUNTS */
+	
+	thr = init_main_thread();
+#endif /* USE_THREADS */
+
+	PL_linestr = NEWSV(65,79);
+	sv_upgrade(PL_linestr,SVt_PVIV);
+
+	if (!SvREADONLY(&PL_sv_undef)) {
+	    /* set read-only and try to insure than we wont see REFCNT==0
+	       very often */
+
+	    SvREADONLY_on(&PL_sv_undef);
+	    SvREFCNT(&PL_sv_undef) = (~(U32)0)/2;
+
+	    sv_setpv(&PL_sv_no,PL_No);
+	    SvNV(&PL_sv_no);
+	    SvREADONLY_on(&PL_sv_no);
+	    SvREFCNT(&PL_sv_no) = (~(U32)0)/2;
+
+	    sv_setpv(&PL_sv_yes,PL_Yes);
+	    SvNV(&PL_sv_yes);
+	    SvREADONLY_on(&PL_sv_yes);
+	    SvREFCNT(&PL_sv_yes) = (~(U32)0)/2;
+	}
+
+#ifdef PERL_OBJECT
+	/* TODO: */
+	/* PL_sighandlerp = sighandler; */
+#else
+	PL_sighandlerp = sighandler;
+#endif
+	PL_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
+    }
+
+    PL_nrs = newSVpv("\n", 1);
+    PL_rs = SvREFCNT_inc(PL_nrs);
+
+    init_stacks(ARGS);
+#ifdef MULTIPLICITY
+    init_interp();
+    PL_perl_destruct_level = 1; 
+#else
+   if (PL_perl_destruct_level > 0)
+       init_interp();
+#endif
+
+    init_ids();
+    PL_lex_state = LEX_NOTPARSING;
+
+    PL_start_env.je_prev = NULL;
+    PL_start_env.je_ret = -1;
+    PL_start_env.je_mustcatch = TRUE;
+    PL_top_env     = &PL_start_env;
+    STATUS_ALL_SUCCESS;
+
+    SET_NUMERIC_STANDARD();
+#if defined(SUBVERSION) && SUBVERSION > 0
+    sprintf(PL_patchlevel, "%7.5f",   (double) 5 
+				+ ((double) PATCHLEVEL / (double) 1000)
+				+ ((double) SUBVERSION / (double) 100000));
+#else
+    sprintf(PL_patchlevel, "%5.3f", (double) 5 +
+				((double) PATCHLEVEL / (double) 1000));
+#endif
+
+#if defined(LOCAL_PATCH_COUNT)
+    PL_localpatches = local_patches;	/* For possible -v */
+#endif
+
+    PerlIO_init();			/* Hook to IO system */
+
+    PL_fdpid = newAV();			/* for remembering popen pids by fd */
+    PL_modglobal = newHV();		/* pointers to per-interpreter module globals */
+
+    DEBUG( {
+	New(51,PL_debname,128,char);
+	New(52,PL_debdelim,128,char);
+    } )
+
+    ENTER;
+}
+
+void
+#ifdef PERL_OBJECT
+CPerlObj::perl_destruct(void)
+#else
+perl_destruct(register PerlInterpreter *sv_interp)
+#endif
+{
+    dTHR;
+    int destruct_level;  /* 0=none, 1=full, 2=full with checks */
+    I32 last_sv_count;
+    HV *hv;
+#ifdef USE_THREADS
+    Thread t;
+#endif /* USE_THREADS */
+
+#ifndef PERL_OBJECT
+    if (!(PL_curinterp = sv_interp))
+	return;
+#endif
+
+#ifdef USE_THREADS
+#ifndef FAKE_THREADS
+    /* Pass 1 on any remaining threads: detach joinables, join zombies */
+  retry_cleanup:
+    MUTEX_LOCK(&PL_threads_mutex);
+    DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+			  "perl_destruct: waiting for %d threads...\n",
+			  PL_nthreads - 1));
+    for (t = thr->next; t != thr; t = t->next) {
+	MUTEX_LOCK(&t->mutex);
+	switch (ThrSTATE(t)) {
+	    AV *av;
+	case THRf_ZOMBIE:
+	    DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+				  "perl_destruct: joining zombie %p\n", t));
+	    ThrSETSTATE(t, THRf_DEAD);
+	    MUTEX_UNLOCK(&t->mutex);
+	    PL_nthreads--;
+	    /*
+	     * The SvREFCNT_dec below may take a long time (e.g. av
+	     * may contain an object scalar whose destructor gets
+	     * called) so we have to unlock threads_mutex and start
+	     * all over again.
+	     */
+	    MUTEX_UNLOCK(&PL_threads_mutex);
+	    JOIN(t, &av);
+	    SvREFCNT_dec((SV*)av);
+	    DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+				  "perl_destruct: joined zombie %p OK\n", t));
+	    goto retry_cleanup;
+	case THRf_R_JOINABLE:
+	    DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+				  "perl_destruct: detaching thread %p\n", t));
+	    ThrSETSTATE(t, THRf_R_DETACHED);
+	    /* 
+	     * We unlock threads_mutex and t->mutex in the opposite order
+	     * from which we locked them just so that DETACH won't
+	     * deadlock if it panics. It's only a breach of good style
+	     * not a bug since they are unlocks not locks.
+	     */
+	    MUTEX_UNLOCK(&PL_threads_mutex);
+	    DETACH(t);
+	    MUTEX_UNLOCK(&t->mutex);
+	    goto retry_cleanup;
+	default:
+	    DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+				  "perl_destruct: ignoring %p (state %u)\n",
+				  t, ThrSTATE(t)));
+	    MUTEX_UNLOCK(&t->mutex);
+	    /* fall through and out */
+	}
+    }
+    /* We leave the above "Pass 1" loop with threads_mutex still locked */
+
+    /* Pass 2 on remaining threads: wait for the thread count to drop to one */
+    while (PL_nthreads > 1)
+    {
+	DEBUG_S(PerlIO_printf(PerlIO_stderr(),
+			      "perl_destruct: final wait for %d threads\n",
+			      PL_nthreads - 1));
+	COND_WAIT(&PL_nthreads_cond, &PL_threads_mutex);
+    }
+    /* At this point, we're the last thread */
+    MUTEX_UNLOCK(&PL_threads_mutex);
+    DEBUG_S(PerlIO_printf(PerlIO_stderr(), "perl_destruct: armageddon has arrived\n"));
+    MUTEX_DESTROY(&PL_threads_mutex);
+    COND_DESTROY(&PL_nthreads_cond);
+#endif /* !defined(FAKE_THREADS) */
+#endif /* USE_THREADS */
+
+    destruct_level = PL_perl_destruct_level;
+#ifdef DEBUGGING
+    {
+	char *s;
+	if (s = PerlEnv_getenv("PERL_DESTRUCT_LEVEL")) {
+	    int i = atoi(s);
+	    if (destruct_level < i)
+		destruct_level = i;
+	}
+    }
+#endif
+
+    LEAVE;
+    FREETMPS;
+
+#ifdef MULTIPLICITY
+    --PL_ninterps;
+#endif
+
+    /* We must account for everything.  */
+
+    /* Destroy the main CV and syntax tree */
+    if (PL_main_root) {
+	PL_curpad = AvARRAY(PL_comppad);
+	op_free(PL_main_root);
+	PL_main_root = Nullop;
+    }
+    PL_curcop = &PL_compiling;
+    PL_main_start = Nullop;
+    SvREFCNT_dec(PL_main_cv);
+    PL_main_cv = Nullcv;
+
+    if (PL_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.
+	 */
+    
+	PL_dirty = TRUE;
+	sv_clean_objs();
+    }
+
+    /* unhook hooks which will soon be, or use, destroyed data */
+    SvREFCNT_dec(PL_warnhook);
+    PL_warnhook = Nullsv;
+    SvREFCNT_dec(PL_diehook);
+    PL_diehook = Nullsv;
+    SvREFCNT_dec(PL_parsehook);
+    PL_parsehook = Nullsv;
+
+    /* call exit list functions */
+    while (PL_exitlistlen-- > 0)
+	PL_exitlist[PL_exitlistlen].fn(PERL_OBJECT_THIS_ PL_exitlist[PL_exitlistlen].ptr);
+
+    Safefree(PL_exitlist);
+
+    if (destruct_level == 0){
+
+	DEBUG_P(debprofdump());
+    
+	/* The exit() function will do everything that needs doing. */
+	return;
+    }
+
+    /* loosen bonds of global variables */
+
+    if(PL_rsfp) {
+	(void)PerlIO_close(PL_rsfp);
+	PL_rsfp = Nullfp;
+    }
+
+    /* Filters for program text */
+    SvREFCNT_dec(PL_rsfp_filters);
+    PL_rsfp_filters = Nullav;
+
+    /* switches */
+    PL_preprocess   = FALSE;
+    PL_minus_n      = FALSE;
+    PL_minus_p      = FALSE;
+    PL_minus_l      = FALSE;
+    PL_minus_a      = FALSE;
+    PL_minus_F      = FALSE;
+    PL_doswitches   = FALSE;
+    PL_dowarn       = FALSE;
+    PL_doextract    = FALSE;
+    PL_sawampersand = FALSE;	/* must save all match strings */
+    PL_sawstudy     = FALSE;	/* do fbm_instr on all strings */
+    PL_sawvec       = FALSE;
+    PL_unsafe       = FALSE;
+
+    Safefree(PL_inplace);
+    PL_inplace = Nullch;
+
+    if (PL_e_script) {
+	SvREFCNT_dec(PL_e_script);
+	PL_e_script = Nullsv;
+    }
+
+    /* magical thingies */
+
+    Safefree(PL_ofs);	/* $, */
+    PL_ofs = Nullch;
+
+    Safefree(PL_ors);	/* $\ */
+    PL_ors = Nullch;
+
+    SvREFCNT_dec(PL_rs);	/* $/ */
+    PL_rs = Nullsv;
+
+    SvREFCNT_dec(PL_nrs);	/* $/ helper */
+    PL_nrs = Nullsv;
+
+    PL_multiline = 0;	/* $* */
+
+    SvREFCNT_dec(PL_statname);
+    PL_statname = Nullsv;
+    PL_statgv = Nullgv;
+
+    /* defgv, aka *_ should be taken care of elsewhere */
+
+    /* clean up after study() */
+    SvREFCNT_dec(PL_lastscream);
+    PL_lastscream = Nullsv;
+    Safefree(PL_screamfirst);
+    PL_screamfirst = 0;
+    Safefree(PL_screamnext);
+    PL_screamnext  = 0;
+
+    /* startup and shutdown function lists */
+    SvREFCNT_dec(PL_beginav);
+    SvREFCNT_dec(PL_endav);
+    SvREFCNT_dec(PL_initav);
+    PL_beginav = Nullav;
+    PL_endav = Nullav;
+    PL_initav = Nullav;
+
+    /* shortcuts just get cleared */
+    PL_envgv = Nullgv;
+    PL_siggv = Nullgv;
+    PL_incgv = Nullgv;
+    PL_hintgv = Nullgv;
+    PL_errgv = Nullgv;
+    PL_argvgv = Nullgv;
+    PL_argvoutgv = Nullgv;
+    PL_stdingv = Nullgv;
+    PL_last_in_gv = Nullgv;
+    PL_replgv = Nullgv;
+
+    /* reset so print() ends up where we expect */
+    setdefout(Nullgv);
+
+    /* Prepare to destruct main symbol table.  */
+
+    hv = PL_defstash;
+    PL_defstash = 0;
+    SvREFCNT_dec(hv);
+
+    FREETMPS;
+    if (destruct_level >= 2) {
+	if (PL_scopestack_ix != 0)
+	    warn("Unbalanced scopes: %ld more ENTERs than LEAVEs\n",
+		 (long)PL_scopestack_ix);
+	if (PL_savestack_ix != 0)
+	    warn("Unbalanced saves: %ld more saves than restores\n",
+		 (long)PL_savestack_ix);
+	if (PL_tmps_floor != -1)
+	    warn("Unbalanced tmps: %ld more allocs than frees\n",
+		 (long)PL_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(PL_strtab) |= SVTYPEMASK;		/* don't clean out strtab now */
+    while (PL_sv_count != 0 && PL_sv_count != last_sv_count) {
+	last_sv_count = PL_sv_count;
+	sv_clean_all();
+    }
+    SvFLAGS(PL_strtab) &= ~SVTYPEMASK;
+    SvFLAGS(PL_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(PL_strtab);
+	array = HvARRAY(PL_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(PL_strtab);
+
+    if (PL_sv_count != 0)
+	warn("Scalars leaked: %ld\n", (long)PL_sv_count);
+
+    sv_free_arenas();
+
+    /* No SVs have survived, need to clean out */
+    PL_linestr = NULL;
+    PL_pidstatus = Nullhv;
+    Safefree(PL_origfilename);
+    Safefree(PL_archpat_auto);
+    Safefree(PL_reg_start_tmp);
+    Safefree(HeKEY_hek(&PL_hv_fetch_ent_mh));
+    Safefree(PL_op_mask);
+    nuke_stacks();
+    PL_hints = 0;		/* Reset hints. Should hints be per-interpreter ? */
+    
+    DEBUG_P(debprofdump());
+#ifdef USE_THREADS
+    MUTEX_DESTROY(&PL_sv_mutex);
+    MUTEX_DESTROY(&PL_eval_mutex);
+    COND_DESTROY(&PL_eval_cond);
+
+    /* As the penultimate thing, free the non-arena SV for thrsv */
+    Safefree(SvPVX(PL_thrsv));
+    Safefree(SvANY(PL_thrsv));
+    Safefree(PL_thrsv);
+    PL_thrsv = Nullsv;
+#endif /* USE_THREADS */
+    
+    /* As the absolutely last thing, free the non-arena SV for mess() */
+
+    if (PL_mess_sv) {
+	/* it could have accumulated taint magic */
+	if (SvTYPE(PL_mess_sv) >= SVt_PVMG) {
+	    MAGIC* mg;
+	    MAGIC* moremagic;
+	    for (mg = SvMAGIC(PL_mess_sv); mg; mg = moremagic) {
+		moremagic = mg->mg_moremagic;
+		if (mg->mg_ptr && mg->mg_type != 'g' && mg->mg_len >= 0)
+		    Safefree(mg->mg_ptr);
+		Safefree(mg);
+	    }
+	}
+	/* we know that type >= SVt_PV */
+	SvOOK_off(PL_mess_sv);
+	Safefree(SvPVX(PL_mess_sv));
+	Safefree(SvANY(PL_mess_sv));
+	Safefree(PL_mess_sv);
+	PL_mess_sv = Nullsv;
+    }
+}
+
+void
+#ifdef PERL_OBJECT
+CPerlObj::perl_free(void)
+#else
+perl_free(PerlInterpreter *sv_interp)
+#endif
+{
+#ifdef PERL_OBJECT
+	Safefree(this);
+#else
+    if (!(PL_curinterp = sv_interp))
+	return;
+    Safefree(sv_interp);
+#endif
+}
+
+void
+#ifdef PERL_OBJECT
+CPerlObj::perl_atexit(void (*fn) (CPerlObj*,void *), void *ptr)
+#else
+perl_atexit(void (*fn) (void *), void *ptr)
+#endif
+{
+    Renew(PL_exitlist, PL_exitlistlen+1, PerlExitListEntry);
+    PL_exitlist[PL_exitlistlen].fn = fn;
+    PL_exitlist[PL_exitlistlen].ptr = ptr;
+    ++PL_exitlistlen;
+}
+
+int
+#ifdef PERL_OBJECT
+CPerlObj::perl_parse(void (*xsinit) (CPerlObj*), int argc, char **argv, char **env)
+#else
+perl_parse(PerlInterpreter *sv_interp, void (*xsinit) (void), int argc, char **argv, char **env)
+#endif
+{
+    dTHR;
+    register SV *sv;
+    register char *s;
+    char *scriptname = NULL;
+    VOL bool dosearch = FALSE;
+    char *validarg = "";
+    I32 oldscope;
+    AV* comppadlist;
+    dJMPENV;
+    int ret;
+    int fdscript = -1;
+
+#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
+#ifdef IAMSUID
+#undef IAMSUID
+    croak("suidperl is no longer needed since the kernel can now execute\n\
+setuid perl scripts securely.\n");
+#endif
+#endif
+
+#ifndef PERL_OBJECT
+    if (!(PL_curinterp = sv_interp))
+	return 255;
+#endif
+
+#if defined(NeXT) && defined(__DYNAMIC__)
+    _dyld_lookup_and_bind
+	("__environ", (unsigned long *) &environ_pointer, NULL);
+#endif /* environ */
+
+    PL_origargv = argv;
+    PL_origargc = argc;
+#ifndef VMS  /* VMS doesn't have environ array */
+    PL_origenviron = environ;
+#endif
+
+    if (PL_do_undump) {
+
+	/* Come here if running an undumped a.out. */
+
+	PL_origfilename = savepv(argv[0]);
+	PL_do_undump = FALSE;
+	cxstack_ix = -1;		/* start label stack again */
+	init_ids();
+	init_postdump_symbols(argc,argv,env);
+	return 0;
+    }
+
+    if (PL_main_root) {
+	PL_curpad = AvARRAY(PL_comppad);
+	op_free(PL_main_root);
+	PL_main_root = Nullop;
+    }
+    PL_main_start = Nullop;
+    SvREFCNT_dec(PL_main_cv);
+    PL_main_cv = Nullcv;
+
+    time(&PL_basetime);
+    oldscope = PL_scopestack_ix;
+
+    JMPENV_PUSH(ret);
+    switch (ret) {
+    case 1:
+	STATUS_ALL_FAILURE;
+	/* FALL THROUGH */
+    case 2:
+	/* my_exit() was called */
+	while (PL_scopestack_ix > oldscope)
+	    LEAVE;
+	FREETMPS;
+	PL_curstash = PL_defstash;
+	if (PL_endav)
+	    call_list(oldscope, PL_endav);
+	JMPENV_POP;
+	return STATUS_NATIVE_EXPORT;
+    case 3:
+	JMPENV_POP;
+	PerlIO_printf(PerlIO_stderr(), "panic: top_env\n");
+	return 1;
+    }
+
+    sv_setpvn(PL_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;
+#ifdef DOSUID
+    if (*validarg)
+	validarg = " PHOOEY ";
+    else
+	validarg = argv[0];
+#endif
+	s = argv[0]+1;
+      reswitch:
+	switch (*s) {
+	case ' ':
+	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':
+	case 'w':
+	    if (s = moreswitches(s))
+		goto reswitch;
+	    break;
+
+	case 'T':
+	    PL_tainting = TRUE;
+	    s++;
+	    goto reswitch;
+
+	case 'e':
+	    if (PL_euid != PL_uid || PL_egid != PL_gid)
+		croak("No -e allowed in setuid scripts");
+	    if (!PL_e_script) {
+		PL_e_script = newSVpv("",0);
+		filter_add(read_e_script, NULL);
+	    }
+	    if (*++s)
+		sv_catpv(PL_e_script, s);
+	    else if (argv[1]) {
+		sv_catpv(PL_e_script, argv[1]);
+		argc--,argv++;
+	    }
+	    else
+		croak("No code specified for -e");
+	    sv_catpv(PL_e_script, "\n");
+	    break;
+
+	case 'I':	/* -I handled both here and in moreswitches() */
+	    forbid_setid("-I");
+	    if (!*++s && (s=argv[1]) != Nullch) {
+		argc--,argv++;
+	    }
+	    while (s && isSPACE(*s))
+		++s;
+	    if (s && *s) {
+		char *e, *p;
+		for (e = s; *e && !isSPACE(*e); e++) ;
+		p = savepvn(s, e-s);
+		incpush(p, TRUE);
+		sv_catpv(sv,"-I");
+		sv_catpv(sv,p);
+		sv_catpv(sv," ");
+		Safefree(p);
+	    }	/* XXX else croak? */
+	    break;
+	case 'P':
+	    forbid_setid("-P");
+	    PL_preprocess = TRUE;
+	    s++;
+	    goto reswitch;
+	case 'S':
+	    forbid_setid("-S");
+	    dosearch = TRUE;
+	    s++;
+	    goto reswitch;
+	case 'V':
+	    if (!PL_preambleav)
+		PL_preambleav = newAV();
+	    av_push(PL_preambleav, newSVpv("use Config qw(myconfig config_vars)",0));
+	    if (*++s != ':')  {
+		PL_Sv = newSVpv("print myconfig();",0);
+#ifdef VMS
+		sv_catpv(PL_Sv,"print \"\\nCharacteristics of this PERLSHR image: \\n\",");
+#else
+		sv_catpv(PL_Sv,"print \"\\nCharacteristics of this binary (from libperl): \\n\",");
+#endif
+#if defined(DEBUGGING) || defined(NO_EMBED) || defined(MULTIPLICITY)
+		sv_catpv(PL_Sv,"\"  Compile-time options:");
+#  ifdef DEBUGGING
+		sv_catpv(PL_Sv," DEBUGGING");
+#  endif
+#  ifdef NO_EMBED
+		sv_catpv(PL_Sv," NO_EMBED");
+#  endif
+#  ifdef MULTIPLICITY
+		sv_catpv(PL_Sv," MULTIPLICITY");
+#  endif
+		sv_catpv(PL_Sv,"\\n\",");
+#endif
+#if defined(LOCAL_PATCH_COUNT)
+		if (LOCAL_PATCH_COUNT > 0) {
+		    int i;
+		    sv_catpv(PL_Sv,"\"  Locally applied patches:\\n\",");
+		    for (i = 1; i <= LOCAL_PATCH_COUNT; i++) {
+			if (PL_localpatches[i])
+			    sv_catpvf(PL_Sv,"\"  \\t%s\\n\",",PL_localpatches[i]);
+		    }
+		}
+#endif
+		sv_catpvf(PL_Sv,"\"  Built under %s\\n\"",OSNAME);
+#ifdef __DATE__
+#  ifdef __TIME__
+		sv_catpvf(PL_Sv,",\"  Compiled at %s %s\\n\"",__DATE__,__TIME__);
+#  else
+		sv_catpvf(PL_Sv,",\"  Compiled on %s\\n\"",__DATE__);
+#  endif
+#endif
+		sv_catpv(PL_Sv, "; \
+$\"=\"\\n    \"; \
+@env = map { \"$_=\\\"$ENV{$_}\\\"\" } sort grep {/^PERL/} keys %ENV; \
+print \"  \\%ENV:\\n    @env\\n\" if @env; \
+print \"  \\@INC:\\n    @INC\\n\";");
+	    }
+	    else {
+		PL_Sv = newSVpv("config_vars(qw(",0);
+		sv_catpv(PL_Sv, ++s);
+		sv_catpv(PL_Sv, "))");
+		s += strlen(s);
+	    }
+	    av_push(PL_preambleav, PL_Sv);
+	    scriptname = BIT_BUCKET;	/* don't look for script or read stdin */
+	    goto reswitch;
+	case 'x':
+	    PL_doextract = TRUE;
+	    s++;
+	    if (*s)
+		PL_cddir = savepv(s);
+	    break;
+	case 0:
+	    break;
+	case '-':
+	    if (!*++s || isSPACE(*s)) {
+		argc--,argv++;
+		goto switch_end;
+	    }
+	    /* catch use of gnu style long options */
+	    if (strEQ(s, "version")) {
+		s = "v";
+		goto reswitch;
+	    }
+	    if (strEQ(s, "help")) {
+		s = "h";
+		goto reswitch;
+	    }
+	    s--;
+	    /* FALL THROUGH */
+	default:
+	    croak("Unrecognized switch: -%s  (-h will show valid options)",s);
+	}
+    }
+  switch_end:
+
+    if (!PL_tainting && (s = PerlEnv_getenv("PERL5OPT"))) {
+	while (s && *s) {
+	    while (isSPACE(*s))
+		s++;
+	    if (*s == '-') {
+		s++;
+		if (isSPACE(*s))
+		    continue;
+	    }
+	    if (!*s)
+		break;
+	    if (!strchr("DIMUdmw", *s))
+		croak("Illegal switch in PERL5OPT: -%c", *s);
+	    s = moreswitches(s);
+	}
+    }
+
+    if (!scriptname)
+	scriptname = argv[0];
+    if (PL_e_script) {
+	argc++,argv--;
+	scriptname = BIT_BUCKET;	/* don't look for script or read stdin */
+    }
+    else if (scriptname == Nullch) {
+#ifdef MSDOS
+	if ( PerlLIO_isatty(PerlIO_fileno(PerlIO_stdin())) )
+	    moreswitches("h");
+#endif
+	scriptname = "-";
+    }
+
+    init_perllib();
+
+    open_script(scriptname,dosearch,sv,&fdscript);
+
+    validate_suid(validarg, scriptname,fdscript);
+
+    if (PL_doextract)
+	find_beginning();
+
+    PL_main_cv = PL_compcv = (CV*)NEWSV(1104,0);
+    sv_upgrade((SV *)PL_compcv, SVt_PVCV);
+    CvUNIQUE_on(PL_compcv);
+
+    PL_comppad = newAV();
+    av_push(PL_comppad, Nullsv);
+    PL_curpad = AvARRAY(PL_comppad);
+    PL_comppad_name = newAV();
+    PL_comppad_name_fill = 0;
+    PL_min_intro_pending = 0;
+    PL_padix = 0;
+#ifdef USE_THREADS
+    av_store(PL_comppad_name, 0, newSVpv("@_", 2));
+    PL_curpad[0] = (SV*)newAV();
+    SvPADMY_on(PL_curpad[0]);	/* XXX Needed? */
+    CvOWNER(PL_compcv) = 0;
+    New(666, CvMUTEXP(PL_compcv), 1, perl_mutex);
+    MUTEX_INIT(CvMUTEXP(PL_compcv));
+#endif /* USE_THREADS */
+
+    comppadlist = newAV();
+    AvREAL_off(comppadlist);
+    av_store(comppadlist, 0, (SV*)PL_comppad_name);
+    av_store(comppadlist, 1, (SV*)PL_comppad);
+    CvPADLIST(PL_compcv) = comppadlist;
+
+    boot_core_UNIVERSAL();
+
+    if (xsinit)
+	(*xsinit)(PERL_OBJECT_THIS);	/* in case linked C routines want magical variables */
+#if defined(VMS) || defined(WIN32) || defined(DJGPP)
+    init_os_extras();
+#endif
+
+    init_predump_symbols();
+    /* init_postdump_symbols not currently designed to be called */
+    /* more than once (ENV isn't cleared first, for example)	 */
+    /* But running with -u leaves %ENV & @ARGV undefined!    XXX */
+    if (!PL_do_undump)
+	init_postdump_symbols(argc,argv,env);
+
+    init_lexer();
+
+    /* now parse the script */
+
+    SETERRNO(0,SS$_NORMAL);
+    PL_error_count = 0;
+    if (yyparse() || PL_error_count) {
+	if (PL_minus_c)
+	    croak("%s had compilation errors.\n", PL_origfilename);
+	else {
+	    croak("Execution of %s aborted due to compilation errors.\n",
+		PL_origfilename);
+	}
+    }
+    PL_curcop->cop_line = 0;
+    PL_curstash = PL_defstash;
+    PL_preprocess = FALSE;
+    if (PL_e_script) {
+	SvREFCNT_dec(PL_e_script);
+	PL_e_script = Nullsv;
+    }
+
+    /* now that script is parsed, we can modify record separator */
+    SvREFCNT_dec(PL_rs);
+    PL_rs = SvREFCNT_inc(PL_nrs);
+    sv_setsv(perl_get_sv("/", TRUE), PL_rs);
+    if (PL_do_undump)
+	my_unexec();
+
+    if (PL_dowarn)
+	gv_check(PL_defstash);
+
+    LEAVE;
+    FREETMPS;
+
+#ifdef MYMALLOC
+    if ((s=PerlEnv_getenv("PERL_DEBUG_MSTATS")) && atoi(s) >= 2)
+	dump_mstats("after compilation:");
+#endif
+
+    ENTER;
+    PL_restartop = 0;
+    JMPENV_POP;
+    return 0;
+}
+
+int
+#ifdef PERL_OBJECT
+CPerlObj::perl_run(void)
+#else
+perl_run(PerlInterpreter *sv_interp)
+#endif
+{
+    dSP;
+    I32 oldscope;
+    dJMPENV;
+    int ret;
+
+#ifndef PERL_OBJECT
+    if (!(PL_curinterp = sv_interp))
+	return 255;
+#endif
+
+    oldscope = PL_scopestack_ix;
+
+    JMPENV_PUSH(ret);
+    switch (ret) {
+    case 1:
+	cxstack_ix = -1;		/* start context stack again */
+	break;
+    case 2:
+	/* my_exit() was called */
+	while (PL_scopestack_ix > oldscope)
+	    LEAVE;
+	FREETMPS;
+	PL_curstash = PL_defstash;
+	if (PL_endav)
+	    call_list(oldscope, PL_endav);
+#ifdef MYMALLOC
+	if (PerlEnv_getenv("PERL_DEBUG_MSTATS"))
+	    dump_mstats("after execution:  ");
+#endif
+	JMPENV_POP;
+	return STATUS_NATIVE_EXPORT;
+    case 3:
+	if (!PL_restartop) {
+	    PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
+	    FREETMPS;
+	    JMPENV_POP;
+	    return 1;
+	}
+	POPSTACK_TO(PL_mainstack);
+	break;
+    }
+
+    DEBUG_r(PerlIO_printf(Perl_debug_log, "%s $` $& $' support.\n",
+                    PL_sawampersand ? "Enabling" : "Omitting"));
+
+    if (!PL_restartop) {
+	DEBUG_x(dump_all());
+	DEBUG(PerlIO_printf(Perl_debug_log, "\nEXECUTING...\n\n"));
+	DEBUG_S(PerlIO_printf(Perl_debug_log, "main thread is 0x%lx\n",
+			      (unsigned long) thr));
+
+	if (PL_minus_c) {
+	    PerlIO_printf(PerlIO_stderr(), "%s syntax OK\n", PL_origfilename);
+	    my_exit(0);
+	}
+	if (PERLDB_SINGLE && PL_DBsingle)
+	   sv_setiv(PL_DBsingle, 1); 
+	if (PL_initav)
+	    call_list(oldscope, PL_initav);
+    }
+
+    /* do it */
+
+    if (PL_restartop) {
+	PL_op = PL_restartop;
+	PL_restartop = 0;
+	CALLRUNOPS();
+    }
+    else if (PL_main_start) {
+	CvDEPTH(PL_main_cv) = 1;
+	PL_op = PL_main_start;
+	CALLRUNOPS();
+    }
+
+    my_exit(0);
+    /* NOTREACHED */
+    return 0;
+}
+
+SV*
+perl_get_sv(char *name, I32 create)
+{
+    GV *gv;
+#ifdef USE_THREADS
+    if (name[1] == '\0' && !isALPHA(name[0])) {
+	PADOFFSET tmp = find_threadsv(name);
+    	if (tmp != NOT_IN_PAD) {
+	    dTHR;
+	    return THREADSV(tmp);
+	}
+    }
+#endif /* USE_THREADS */
+    gv = gv_fetchpv(name, create, SVt_PV);
+    if (gv)
+	return GvSV(gv);
+    return Nullsv;
+}
+
+AV*
+perl_get_av(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(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(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(char *sub_name, I32 flags, register char **argv)
+              
+          		/* See G_* flags in cop.h */
+                     	/* null terminated arg list */
+{
+    dSP;
+
+    PUSHMARK(SP);
+    if (argv) {
+	while (*argv) {
+	    XPUSHs(sv_2mortal(newSVpv(*argv,0)));
+	    argv++;
+	}
+	PUTBACK;
+    }
+    return perl_call_pv(sub_name, flags);
+}
+
+I32
+perl_call_pv(char *sub_name, I32 flags)
+              		/* name of the subroutine */
+          		/* See G_* flags in cop.h */
+{
+    return perl_call_sv((SV*)perl_get_cv(sub_name, TRUE), flags);
+}
+
+I32
+perl_call_method(char *methname, I32 flags)
+               		/* name of the subroutine */
+          		/* See G_* flags in cop.h */
+{
+    dSP;
+    OP myop;
+    if (!PL_op)
+	PL_op = &myop;
+    XPUSHs(sv_2mortal(newSVpv(methname,0)));
+    PUTBACK;
+    pp_method(ARGS);
+	if(PL_op == &myop)
+		PL_op = Nullop;
+    return perl_call_sv(*PL_stack_sp--, flags);
+}
+
+/* May be called with any of a CV, a GV, or an SV containing the name. */
+I32
+perl_call_sv(SV *sv, I32 flags)
+       
+          		/* See G_* flags in cop.h */
+{
+    dSP;
+    LOGOP myop;		/* fake syntax tree node */
+    I32 oldmark;
+    I32 retval;
+    I32 oldscope;
+    bool oldcatch = CATCH_GET;
+    dJMPENV;
+    int ret;
+    OP* oldop = PL_op;
+
+    if (flags & G_DISCARD) {
+	ENTER;
+	SAVETMPS;
+    }
+
+    Zero(&myop, 1, LOGOP);
+    myop.op_next = Nullop;
+    if (!(flags & G_NOARGS))
+	myop.op_flags |= OPf_STACKED;
+    myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
+		      (flags & G_ARRAY) ? OPf_WANT_LIST :
+		      OPf_WANT_SCALAR);
+    SAVEOP();
+    PL_op = (OP*)&myop;
+
+    EXTEND(PL_stack_sp, 1);
+    *++PL_stack_sp = sv;
+    oldmark = TOPMARK;
+    oldscope = PL_scopestack_ix;
+
+    if (PERLDB_SUB && PL_curstash != PL_debstash
+	   /* Handle first BEGIN of -d. */
+	  && (PL_DBcv || (PL_DBcv = GvCV(PL_DBsub)))
+	   /* Try harder, since this may have been a sighandler, thus
+	    * curstash may be meaningless. */
+	  && (SvTYPE(sv) != SVt_PVCV || CvSTASH((CV*)sv) != PL_debstash)
+	  && !(flags & G_NODEBUG))
+	PL_op->op_private |= OPpENTERSUB_DB;
+
+    if (flags & G_EVAL) {
+	cLOGOP->op_other = PL_op;
+	PL_markstack_ptr--;
+	/* we're trying to emulate pp_entertry() here */
+	{
+	    register PERL_CONTEXT *cx;
+	    I32 gimme = GIMME_V;
+	    
+	    ENTER;
+	    SAVETMPS;
+	    
+	    push_return(PL_op->op_next);
+	    PUSHBLOCK(cx, CXt_EVAL, PL_stack_sp);
+	    PUSHEVAL(cx, 0, 0);
+	    PL_eval_root = PL_op;             /* Only needed so that goto works right. */
+	    
+	    PL_in_eval = 1;
+	    if (flags & G_KEEPERR)
+		PL_in_eval |= 4;
+	    else
+		sv_setpv(ERRSV,"");
+	}
+	PL_markstack_ptr++;
+
+	JMPENV_PUSH(ret);
+	switch (ret) {
+	case 0:
+	    break;
+	case 1:
+	    STATUS_ALL_FAILURE;
+	    /* FALL THROUGH */
+	case 2:
+	    /* my_exit() was called */
+	    PL_curstash = PL_defstash;
+	    FREETMPS;
+	    JMPENV_POP;
+	    if (PL_statusvalue)
+		croak("Callback called exit");
+	    my_exit_jump();
+	    /* NOTREACHED */
+	case 3:
+	    if (PL_restartop) {
+		PL_op = PL_restartop;
+		PL_restartop = 0;
+		break;
+	    }
+	    PL_stack_sp = PL_stack_base + oldmark;
+	    if (flags & G_ARRAY)
+		retval = 0;
+	    else {
+		retval = 1;
+		*++PL_stack_sp = &PL_sv_undef;
+	    }
+	    goto cleanup;
+	}
+    }
+    else
+	CATCH_SET(TRUE);
+
+    if (PL_op == (OP*)&myop)
+	PL_op = pp_entersub(ARGS);
+    if (PL_op)
+	CALLRUNOPS();
+    retval = PL_stack_sp - (PL_stack_base + oldmark);
+    if ((flags & G_EVAL) && !(flags & G_KEEPERR))
+	sv_setpv(ERRSV,"");
+
+  cleanup:
+    if (flags & G_EVAL) {
+	if (PL_scopestack_ix > oldscope) {
+	    SV **newsp;
+	    PMOP *newpm;
+	    I32 gimme;
+	    register PERL_CONTEXT *cx;
+	    I32 optype;
+
+	    POPBLOCK(cx,newpm);
+	    POPEVAL(cx);
+	    pop_return();
+	    PL_curpm = newpm;
+	    LEAVE;
+	}
+	JMPENV_POP;
+    }
+    else
+	CATCH_SET(oldcatch);
+
+    if (flags & G_DISCARD) {
+	PL_stack_sp = PL_stack_base + oldmark;
+	retval = 0;
+	FREETMPS;
+	LEAVE;
+    }
+    PL_op = oldop;
+    return retval;
+}
+
+/* Eval a string. The G_EVAL flag is always assumed. */
+
+I32
+perl_eval_sv(SV *sv, I32 flags)
+       
+          		/* See G_* flags in cop.h */
+{
+    dSP;
+    UNOP myop;		/* fake syntax tree node */
+    I32 oldmark = SP - PL_stack_base;
+    I32 retval;
+    I32 oldscope;
+    dJMPENV;
+    int ret;
+    OP* oldop = PL_op;
+
+    if (flags & G_DISCARD) {
+	ENTER;
+	SAVETMPS;
+    }
+
+    SAVEOP();
+    PL_op = (OP*)&myop;
+    Zero(PL_op, 1, UNOP);
+    EXTEND(PL_stack_sp, 1);
+    *++PL_stack_sp = sv;
+    oldscope = PL_scopestack_ix;
+
+    if (!(flags & G_NOARGS))
+	myop.op_flags = OPf_STACKED;
+    myop.op_next = Nullop;
+    myop.op_type = OP_ENTEREVAL;
+    myop.op_flags |= ((flags & G_VOID) ? OPf_WANT_VOID :
+		      (flags & G_ARRAY) ? OPf_WANT_LIST :
+		      OPf_WANT_SCALAR);
+    if (flags & G_KEEPERR)
+	myop.op_flags |= OPf_SPECIAL;
+
+    JMPENV_PUSH(ret);
+    switch (ret) {
+    case 0:
+	break;
+    case 1:
+	STATUS_ALL_FAILURE;
+	/* FALL THROUGH */
+    case 2:
+	/* my_exit() was called */
+	PL_curstash = PL_defstash;
+	FREETMPS;
+	JMPENV_POP;
+	if (PL_statusvalue)
+	    croak("Callback called exit");
+	my_exit_jump();
+	/* NOTREACHED */
+    case 3:
+	if (PL_restartop) {
+	    PL_op = PL_restartop;
+	    PL_restartop = 0;
+	    break;
+	}
+	PL_stack_sp = PL_stack_base + oldmark;
+	if (flags & G_ARRAY)
+	    retval = 0;
+	else {
+	    retval = 1;
+	    *++PL_stack_sp = &PL_sv_undef;
+	}
+	goto cleanup;
+    }
+
+    if (PL_op == (OP*)&myop)
+	PL_op = pp_entereval(ARGS);
+    if (PL_op)
+	CALLRUNOPS();
+    retval = PL_stack_sp - (PL_stack_base + oldmark);
+    if (!(flags & G_KEEPERR))
+	sv_setpv(ERRSV,"");
+
+  cleanup:
+    JMPENV_POP;
+    if (flags & G_DISCARD) {
+	PL_stack_sp = PL_stack_base + oldmark;
+	retval = 0;
+	FREETMPS;
+	LEAVE;
+    }
+    PL_op = oldop;
+    return retval;
+}
+
+SV*
+perl_eval_pv(char *p, I32 croak_on_error)
+{
+    dSP;
+    SV* sv = newSVpv(p, 0);
+
+    PUSHMARK(SP);
+    perl_eval_sv(sv, G_SCALAR);
+    SvREFCNT_dec(sv);
+
+    SPAGAIN;
+    sv = POPs;
+    PUTBACK;
+
+    if (croak_on_error && SvTRUE(ERRSV))
+	croak(SvPVx(ERRSV, PL_na));
+
+    return sv;
+}
+
+/* Require a module. */
+
+void
+perl_require_pv(char *pv)
+{
+    SV* sv;
+    dSP;
+    PUSHSTACKi(PERLSI_REQUIRE);
+    PUTBACK;
+    sv = sv_newmortal();
+    sv_setpv(sv, "require '");
+    sv_catpv(sv, pv);
+    sv_catpv(sv, "'");
+    perl_eval_sv(sv, G_DISCARD);
+    SPAGAIN;
+    POPSTACK;
+}
+
+void
+magicname(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(char *name)		/* XXX move this out into a module ? */
+           
+{
+    /* This message really ought to be max 23 lines.
+     * Removed -h because the user already knows that opton. Others? */
+
+    static char *usage_msg[] = {
+"-0[octal]       specify record separator (\\0, if no argument)",
+"-a              autosplit mode with -n or -p (splits $_ into @F)",
+"-c              check syntax only (runs BEGIN and END blocks)",
+"-d[:debugger]   run scripts under debugger",
+"-D[number/list] set debugging flags (argument is a bit mask or flags)",
+"-e 'command'    one line of script. Several -e's allowed. Omit [programfile].",
+"-F/pattern/     split() pattern for autosplit (-a). The //'s are optional.",
+"-i[extension]   edit <> files in place (make backup if extension supplied)",
+"-Idirectory     specify @INC/#include directory (may be used more than once)",
+"-l[octal]       enable line ending processing, specifies line terminator",
+"-[mM][-]module.. executes `use/no module...' before executing your script.",
+"-n              assume 'while (<>) { ... }' loop around your script",
+"-p              assume loop like -n but print line also like sed",
+"-P              run script through C preprocessor before compilation",
+"-s              enable some switch parsing for switches after script name",
+"-S              look for the script using PATH environment variable",
+"-T              turn on tainting checks",
+"-u              dump core after parsing script",
+"-U              allow unsafe operations",
+"-v              print version number, patchlevel plus VERY IMPORTANT perl info",
+"-V[:variable]   print perl configuration information",
+"-w              TURN WARNINGS ON FOR COMPILATION OF YOUR SCRIPT. Recommended.",
+"-x[directory]   strip off text before #!perl line and perhaps cd to directory",
+"\n",
+NULL
+};
+    char **p = usage_msg;
+
+    printf("\nUsage: %s [switches] [--] [programfile] [arguments]", name);
+    while (*p)
+	printf("\n  %s", *p++);
+}
+
+/* This routine handles any switches that can be given during run */
+
+char *
+moreswitches(char *s)
+{
+    I32 numlen;
+    U32 rschar;
+
+    switch (*s) {
+    case '0':
+    {
+	dTHR;
+	rschar = scan_oct(s, 4, &numlen);
+	SvREFCNT_dec(PL_nrs);
+	if (rschar & ~((U8)~0))
+	    PL_nrs = &PL_sv_undef;
+	else if (!rschar && numlen >= 2)
+	    PL_nrs = newSVpv("", 0);
+	else {
+	    char ch = rschar;
+	    PL_nrs = newSVpv(&ch, 1);
+	}
+	return s + numlen;
+    }
+    case 'F':
+	PL_minus_F = TRUE;
+	PL_splitstr = savepv(s + 1);
+	s += strlen(s);
+	return s;
+    case 'a':
+	PL_minus_a = TRUE;
+	s++;
+	return s;
+    case 'c':
+	PL_minus_c = TRUE;
+	s++;
+	return s;
+    case 'd':
+	forbid_setid("-d");
+	s++;
+	if (*s == ':' || *s == '=')  {
+	    my_setenv("PERL5DB", form("use Devel::%s;", ++s));
+	    s += strlen(s);
+	}
+	if (!PL_perldb) {
+	    PL_perldb = PERLDB_ALL;
+	    init_debugger();
+	}
+	return s;
+    case 'D':
+#ifdef DEBUGGING
+	forbid_setid("-D");
+	if (isALPHA(s[1])) {
+	    static char debopts[] = "psltocPmfrxuLHXDS";
+	    char *d;
+
+	    for (s++; *s && (d = strchr(debopts,*s)); s++)
+		PL_debug |= 1 << (d - debopts);
+	}
+	else {
+	    PL_debug = atoi(s+1);
+	    for (s++; isDIGIT(*s); s++) ;
+	}
+	PL_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(PL_origargv[0]);    
+	PerlProc_exit(0);
+    case 'i':
+	if (PL_inplace)
+	    Safefree(PL_inplace);
+	PL_inplace = savepv(s+1);
+	/*SUPPRESS 530*/
+	for (s = PL_inplace; *s && !isSPACE(*s); s++) ;
+	if (*s) {
+	    *s++ = '\0';
+	    if (*s == '-')	/* Additional switches on #! line. */
+	        s++;
+	}
+	return s;
+    case 'I':	/* -I handled both here and in parse_perl() */
+	forbid_setid("-I");
+	++s;
+	while (*s && isSPACE(*s))
+	    ++s;
+	if (*s) {
+	    char *e, *p;
+	    for (e = s; *e && !isSPACE(*e); e++) ;
+	    p = savepvn(s, e-s);
+	    incpush(p, TRUE);
+	    Safefree(p);
+	    s = e;
+	}
+	else
+	    croak("No space allowed after -I");
+	return s;
+    case 'l':
+	PL_minus_l = TRUE;
+	s++;
+	if (PL_ors)
+	    Safefree(PL_ors);
+	if (isDIGIT(*s)) {
+	    PL_ors = savepv("\n");
+	    PL_orslen = 1;
+	    *PL_ors = scan_oct(s, 3 + (*s == '0'), &numlen);
+	    s += numlen;
+	}
+	else {
+	    dTHR;
+	    if (RsPARA(PL_nrs)) {
+		PL_ors = "\n\n";
+		PL_orslen = 2;
+	    }
+	    else
+		PL_ors = SvPV(PL_nrs, PL_orslen);
+	    PL_ors = savepvn(PL_ors, PL_orslen);
+	}
+	return s;
+    case 'M':
+	forbid_setid("-M");	/* XXX ? */
+	/* FALL THROUGH */
+    case 'm':
+	forbid_setid("-m");	/* XXX ? */
+	if (*++s) {
+	    char *start;
+	    SV *sv;
+	    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 (PL_preambleav == NULL)
+		PL_preambleav = newAV();
+	    av_push(PL_preambleav, sv);
+	}
+	else
+	    croak("No space allowed after -%c", *(s-1));
+	return s;
+    case 'n':
+	PL_minus_n = TRUE;
+	s++;
+	return s;
+    case 'p':
+	PL_minus_p = TRUE;
+	s++;
+	return s;
+    case 's':
+	forbid_setid("-s");
+	PL_doswitches = TRUE;
+	s++;
+	return s;
+    case 'T':
+	if (!PL_tainting)
+	    croak("Too late for \"-T\" option");
+	s++;
+	return s;
+    case 'u':
+	PL_do_undump = TRUE;
+	s++;
+	return s;
+    case 'U':
+	PL_unsafe = TRUE;
+	s++;
+	return s;
+    case 'v':
+#if defined(SUBVERSION) && SUBVERSION > 0
+	printf("\nThis is perl, version 5.%03d_%02d built for %s",
+	    PATCHLEVEL, SUBVERSION, ARCHNAME);
+#else
+	printf("\nThis is perl, version %s built for %s",
+		PL_patchlevel, ARCHNAME);
+#endif
+#if defined(LOCAL_PATCH_COUNT)
+	if (LOCAL_PATCH_COUNT > 0)
+	    printf("\n(with %d registered patch%s, see perl -V for more detail)",
+		LOCAL_PATCH_COUNT, (LOCAL_PATCH_COUNT!=1) ? "es" : "");
+#endif
+
+	printf("\n\nCopyright 1987-1998, Larry Wall\n");
+#ifdef MSDOS
+	printf("\nMS-DOS port Copyright (c) 1989, 1990, Diomidis Spinellis\n");
+#endif
+#ifdef DJGPP
+	printf("djgpp v2 port (jpl5003c) by Hirofumi Watanabe, 1996\n");
+	printf("djgpp v2 port (perl5004+) by Laszlo Molnar, 1997-1998\n");
+#endif
+#ifdef OS2
+	printf("\n\nOS/2 port Copyright (c) 1990, 1991, Raymond Chen, Kai Uwe Rommel\n"
+	    "Version 5 port Copyright (c) 1994-1998, Andreas Kaiser, Ilya Zakharevich\n");
+#endif
+#ifdef atarist
+	printf("atariST series port, ++jrb  bammi@cadence.com\n");
+#endif
+#ifdef __BEOS__
+	printf("BeOS port Copyright Tom Spindler, 1997-1998\n");
+#endif
+#ifdef MPE
+	printf("MPE/iX port Copyright by Mark Klein and Mark Bixby, 1996-1998\n");
+#endif
+#ifdef OEMVS
+	printf("MVS (OS390) port by Mortice Kern Systems, 1997-1998\n");
+#endif
+#ifdef BINARY_BUILD_NOTICE
+	BINARY_BUILD_NOTICE;
+#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\
+Complete documentation for Perl, including FAQ lists, should be found on\n\
+this system using `man perl' or `perldoc perl'.  If you have access to the\n\
+Internet, point your browser at http://www.perl.com/, the Perl Home Page.\n\n");
+	PerlProc_exit(0);
+    case 'w':
+	PL_dowarn = TRUE;
+	s++;
+	return s;
+    case '*':
+    case ' ':
+	if (s[1] == '-')	/* Additional switches on #! line. */
+	    return s+2;
+	break;
+    case '-':
+    case 0:
+#ifdef WIN32
+    case '\r':
+#endif
+    case '\n':
+    case '\t':
+	break;
+#ifdef ALTERNATE_SHEBANG
+    case 'S':			/* OS/2 needs -S on "extproc" line. */
+	break;
+#endif
+    case 'P':
+	if (PL_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 */
+/* Known to work with -DUNEXEC and using unexelf.c from GNU emacs-20.2 */
+
+void
+my_unexec(void)
+{
+#ifdef UNEXEC
+    SV*    prog;
+    SV*    file;
+    int    status = 1;
+    extern int etext;
+
+    prog = newSVpv(BIN_EXP, 0);
+    sv_catpv(prog, "/perl");
+    file = newSVpv(PL_origfilename, 0);
+    sv_catpv(file, ".perldump");
+
+    unexec(SvPVX(file), SvPVX(prog), &etext, sbrk(0), 0);
+    /* unexec prints msg to stderr in case of failure */
+    PerlProc_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
+}
+
+/* initialize curinterp */
+STATIC void
+init_interp(void)
+{
+
+#ifdef PERL_OBJECT		/* XXX kludge */
+#define I_REINIT \
+  STMT_START {				\
+    PL_chopset		= " \n-";	\
+    PL_copline		= NOLINE;	\
+    PL_curcop		= &PL_compiling;\
+    PL_curcopdb		= NULL;		\
+    PL_dbargs		= 0;		\
+    PL_dlmax		= 128;		\
+    PL_laststatval	= -1;		\
+    PL_laststype	= OP_STAT;	\
+    PL_maxscream	= -1;		\
+    PL_maxsysfd		= MAXSYSFD;	\
+    PL_statname		= Nullsv;	\
+    PL_tmps_floor	= -1;		\
+    PL_tmps_ix		= -1;		\
+    PL_op_mask		= NULL;		\
+    PL_dlmax		= 128;		\
+    PL_laststatval	= -1;		\
+    PL_laststype	= OP_STAT;	\
+    PL_mess_sv		= Nullsv;	\
+    PL_splitstr		= " ";		\
+    PL_generation	= 100;		\
+    PL_exitlist		= NULL;		\
+    PL_exitlistlen	= 0;		\
+    PL_regindent	= 0;		\
+    PL_in_clean_objs	= FALSE;	\
+    PL_in_clean_all	= FALSE;	\
+    PL_profiledata	= NULL;		\
+    PL_rsfp		= Nullfp;	\
+    PL_rsfp_filters	= Nullav;	\
+  } STMT_END
+    I_REINIT;
+#else
+#  ifdef MULTIPLICITY
+#    define PERLVAR(var,type)
+#    define PERLVARI(var,type,init)	PL_curinterp->var = init;
+#    define PERLVARIC(var,type,init)	PL_curinterp->var = init;
+#    include "intrpvar.h"
+#    ifndef USE_THREADS
+#      include "thrdvar.h"
+#    endif
+#    undef PERLVAR
+#    undef PERLVARI
+#    undef PERLVARIC
+#    else
+#    define PERLVAR(var,type)
+#    define PERLVARI(var,type,init)	PL_##var = init;
+#    define PERLVARIC(var,type,init)	PL_##var = init;
+#    include "intrpvar.h"
+#    ifndef USE_THREADS
+#      include "thrdvar.h"
+#    endif
+#    undef PERLVAR
+#    undef PERLVARI
+#    undef PERLVARIC
+#  endif
+#endif
+
+}
+
+STATIC void
+init_main_stash(void)
+{
+    dTHR;
+    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() */
+    PL_strtab = newHV();
+    HvSHAREKEYS_off(PL_strtab);			/* mandatory */
+    hv_ksplit(PL_strtab, 512);
+    
+    PL_curstash = PL_defstash = newHV();
+    PL_curstname = newSVpv("main",4);
+    gv = gv_fetchpv("main::",TRUE, SVt_PVHV);
+    SvREFCNT_dec(GvHV(gv));
+    GvHV(gv) = (HV*)SvREFCNT_inc(PL_defstash);
+    SvREADONLY_on(gv);
+    HvNAME(PL_defstash) = savepv("main");
+    PL_incgv = gv_HVadd(gv_AVadd(gv_fetchpv("INC",TRUE, SVt_PVAV)));
+    GvMULTI_on(PL_incgv);
+    PL_hintgv = gv_fetchpv("\010",TRUE, SVt_PV); /* ^H */
+    GvMULTI_on(PL_hintgv);
+    PL_defgv = gv_fetchpv("_",TRUE, SVt_PVAV);
+    PL_errgv = gv_HVadd(gv_fetchpv("@", TRUE, SVt_PV));
+    GvMULTI_on(PL_errgv);
+    PL_replgv = gv_fetchpv("\022", TRUE, SVt_PV); /* ^R */
+    GvMULTI_on(PL_replgv);
+    (void)form("%240s","");	/* Preallocate temp - for immediate signals. */
+    sv_grow(ERRSV, 240);	/* Preallocate - for immediate signals. */
+    sv_setpvn(ERRSV, "", 0);
+    PL_curstash = PL_defstash;
+    PL_compiling.cop_stash = PL_defstash;
+    PL_debstash = GvHV(gv_fetchpv("DB::", GV_ADDMULTI, SVt_PVHV));
+    PL_globalstash = GvHV(gv_fetchpv("CORE::GLOBAL::", GV_ADDMULTI, SVt_PVHV));
+    /* We must init $/ before switches are processed. */
+    sv_setpvn(GvSV(gv_fetchpv("/", TRUE, SVt_PV)), "\n", 1);
+}
+
+STATIC void
+open_script(char *scriptname, bool dosearch, SV *sv, int *fdscript)
+{
+    dTHR;
+    register char *s;
+
+    *fdscript = -1;
+
+    if (PL_e_script) {
+	PL_origfilename = savepv("-e");
+    }
+    else {
+	/* if find_script() returns, it returns a malloc()-ed value */
+	PL_origfilename = scriptname = find_script(scriptname, dosearch, NULL, 1);
+
+	if (strnEQ(scriptname, "/dev/fd/", 8) && isDIGIT(scriptname[8]) ) {
+	    char *s = scriptname + 8;
+	    *fdscript = atoi(s);
+	    while (isDIGIT(*s))
+		s++;
+	    if (*s) {
+		scriptname = savepv(s + 1);
+		Safefree(PL_origfilename);
+		PL_origfilename = scriptname;
+	    }
+	}
+    }
+
+    PL_curcop->cop_filegv = gv_fetchfile(PL_origfilename);
+    if (strEQ(PL_origfilename,"-"))
+	scriptname = "";
+    if (*fdscript >= 0) {
+	PL_rsfp = PerlIO_fdopen(*fdscript,PERL_SCRIPT_MODE);
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+	if (PL_rsfp)
+	    fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);  /* ensure close-on-exec */
+#endif
+    }
+    else if (PL_preprocess) {
+	char *cpp_cfg = CPPSTDIN;
+	SV *cpp = newSVpv("",0);
+	SV *cmd = NEWSV(0,0);
+
+	if (strEQ(cpp_cfg, "cppstdin"))
+	    sv_catpvf(cpp, "%s/", BIN_EXP);
+	sv_catpv(cpp, cpp_cfg);
+
+	sv_catpv(sv,"-I");
+	sv_catpv(sv,PRIVLIB_EXP);
+
+#ifdef MSDOS
+	sv_setpvf(cmd, "\
+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 | %_ -C %_ %s",
+	  (PL_doextract ? "-e \"1,/^#/d\n\"" : ""),
+#else
+	sv_setpvf(cmd, "\
+%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 | %_ -C %_ %s",
+#ifdef LOC_SED
+	  LOC_SED,
+#else
+	  "sed",
+#endif
+	  (PL_doextract ? "-e '1,/^#/d\n'" : ""),
+#endif
+	  scriptname, cpp, sv, CPPMINUS);
+	PL_doextract = FALSE;
+#ifdef IAMSUID				/* actually, this is caught earlier */
+	if (PL_euid != PL_uid && !PL_euid) {	/* if running suidperl */
+#ifdef HAS_SETEUID
+	    (void)seteuid(PL_uid);		/* musn't stay setuid root */
+#else
+#ifdef HAS_SETREUID
+	    (void)setreuid((Uid_t)-1, PL_uid);
+#else
+#ifdef HAS_SETRESUID
+	    (void)setresuid((Uid_t)-1, PL_uid, (Uid_t)-1);
+#else
+	    PerlProc_setuid(PL_uid);
+#endif
+#endif
+#endif
+	    if (PerlProc_geteuid() != PL_uid)
+		croak("Can't do seteuid!\n");
+	}
+#endif /* IAMSUID */
+	PL_rsfp = PerlProc_popen(SvPVX(cmd), "r");
+	SvREFCNT_dec(cmd);
+	SvREFCNT_dec(cpp);
+    }
+    else if (!*scriptname) {
+	forbid_setid("program input from stdin");
+	PL_rsfp = PerlIO_stdin();
+    }
+    else {
+	PL_rsfp = PerlIO_open(scriptname,PERL_SCRIPT_MODE);
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+	if (PL_rsfp)
+	    fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,1);  /* ensure close-on-exec */
+#endif
+    }
+    if (!PL_rsfp) {
+#ifdef DOSUID
+#ifndef IAMSUID		/* in case script is not readable before setuid */
+	if (PL_euid &&
+	    PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&PL_statbuf) >= 0 &&
+	    PL_statbuf.st_mode & (S_ISUID|S_ISGID))
+	{
+	    /* try again */
+	    PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
+	    croak("Can't do setuid\n");
+	}
+#endif
+#endif
+	croak("Can't open perl script \"%s\": %s\n",
+	  SvPVX(GvSV(PL_curcop->cop_filegv)), Strerror(errno));
+    }
+}
+
+STATIC void
+validate_suid(char *validarg, char *scriptname, int fdscript)
+{
+    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
+     * in perl will not fix that problem, but if you have disabled setuid
+     * scripts in the kernel, this will attempt to emulate setuid and setgid
+     * on scripts that have those now-otherwise-useless bits set.  The setuid
+     * root version must be called suidperl or sperlN.NNN.  If regular perl
+     * discovers that it has opened a setuid script, it calls suidperl with
+     * the same argv that it had.  If suidperl finds that the script it has
+     * just opened is NOT setuid root, it sets the effective uid back to the
+     * uid.  We don't just make perl setuid root because that loses the
+     * effective uid we had before invoking perl, if it was different from the
+     * uid.
+     *
+     * 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.
+     */
+
+#ifdef DOSUID
+    dTHR;
+    char *s, *s2;
+
+    if (PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf) < 0)	/* normal stat is insecure */
+	croak("Can't stat script \"%s\"",PL_origfilename);
+    if (fdscript < 0 && PL_statbuf.st_mode & (S_ISUID|S_ISGID)) {
+	I32 len;
+
+#ifdef IAMSUID
+#ifndef HAS_SETREUID
+	/* On this access check to make sure the directories are readable,
+	 * there is actually a small window that the user could use to make
+	 * filename point to an accessible directory.  So there is a faint
+	 * chance that someone could execute a setuid script down in a
+	 * non-accessible directory.  I don't know what to do about that.
+	 * But I don't think it's too important.  The manual lies when
+	 * it says access() is useful in setuid programs.
+	 */
+	if (PerlLIO_access(SvPVX(GvSV(PL_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
+	 * inode to make sure we did stat() on the same file we opened.
+	 * Then we just have to make sure he or she can execute it.
+	 */
+	{
+	    struct stat tmpstatbuf;
+
+	    if (
+#ifdef HAS_SETREUID
+		setreuid(PL_euid,PL_uid) < 0
+#else
+# if HAS_SETRESUID
+		setresuid(PL_euid,PL_uid,(Uid_t)-1) < 0
+# endif
+#endif
+		|| PerlProc_getuid() != PL_euid || PerlProc_geteuid() != PL_uid)
+		croak("Can't swap uid and euid");	/* really paranoid */
+	    if (PerlLIO_stat(SvPVX(GvSV(PL_curcop->cop_filegv)),&tmpstatbuf) < 0)
+		croak("Permission denied");	/* testing full pathname here */
+	    if (tmpstatbuf.st_dev != PL_statbuf.st_dev ||
+		tmpstatbuf.st_ino != PL_statbuf.st_ino) {
+		(void)PerlIO_close(PL_rsfp);
+		if (PL_rsfp = PerlProc_popen("/bin/mail root","w")) {	/* heh, heh */
+		    PerlIO_printf(PL_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)PL_uid,(long)tmpstatbuf.st_dev, (long)tmpstatbuf.st_ino,
+			(long)PL_statbuf.st_dev, (long)PL_statbuf.st_ino,
+			SvPVX(GvSV(PL_curcop->cop_filegv)),
+			(long)PL_statbuf.st_uid, (long)PL_statbuf.st_gid);
+		    (void)PerlProc_pclose(PL_rsfp);
+		}
+		croak("Permission denied\n");
+	    }
+	    if (
+#ifdef HAS_SETREUID
+              setreuid(PL_uid,PL_euid) < 0
+#else
+# if defined(HAS_SETRESUID)
+              setresuid(PL_uid,PL_euid,(Uid_t)-1) < 0
+# endif
+#endif
+              || PerlProc_getuid() != PL_uid || PerlProc_geteuid() != PL_euid)
+		croak("Can't reswap uid and euid");
+	    if (!cando(S_IXUSR,FALSE,&PL_statbuf))		/* can real uid exec? */
+		croak("Permission denied\n");
+	}
+#endif /* HAS_SETREUID */
+#endif /* IAMSUID */
+
+	if (!S_ISREG(PL_statbuf.st_mode))
+	    croak("Permission denied");
+	if (PL_statbuf.st_mode & S_IWOTH)
+	    croak("Setuid/gid script is writable by world");
+	PL_doswitches = FALSE;		/* -s is insecure in suid */
+	PL_curcop->cop_line++;
+	if (sv_gets(PL_linestr, PL_rsfp, 0) == Nullch ||
+	  strnNE(SvPV(PL_linestr,PL_na),"#!",2) )	/* required even on Sys V */
+	    croak("No #! line");
+	s = SvPV(PL_linestr,PL_na)+2;
+	if (*s == ' ') s++;
+	while (!isSPACE(*s)) s++;
+	for (s2 = s;  (s2 > SvPV(PL_linestr,PL_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
+	 * mentioning suidperl explicitly, but they may not add any strange
+	 * arguments beyond what #! says if they do invoke suidperl that way.
+	 */
+	len = strlen(validarg);
+	if (strEQ(validarg," PHOOEY ") ||
+	    strnNE(s,validarg,len) || !isSPACE(s[len]))
+	    croak("Args must match #! line");
+
+#ifndef IAMSUID
+	if (PL_euid != PL_uid && (PL_statbuf.st_mode & S_ISUID) &&
+	    PL_euid == PL_statbuf.st_uid)
+	    if (!PL_do_undump)
+		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 (PL_euid) {	/* oops, we're not the setuid root perl */
+	    (void)PerlIO_close(PL_rsfp);
+#ifndef IAMSUID
+	    /* try again */
+	    PerlProc_execv(form("%s/sperl%s", BIN_EXP, PL_patchlevel), PL_origargv);
+#endif
+	    croak("Can't do setuid\n");
+	}
+
+	if (PL_statbuf.st_mode & S_ISGID && PL_statbuf.st_gid != PL_egid) {
+#ifdef HAS_SETEGID
+	    (void)setegid(PL_statbuf.st_gid);
+#else
+#ifdef HAS_SETREGID
+           (void)setregid((Gid_t)-1,PL_statbuf.st_gid);
+#else
+#ifdef HAS_SETRESGID
+           (void)setresgid((Gid_t)-1,PL_statbuf.st_gid,(Gid_t)-1);
+#else
+	    PerlProc_setgid(PL_statbuf.st_gid);
+#endif
+#endif
+#endif
+	    if (PerlProc_getegid() != PL_statbuf.st_gid)
+		croak("Can't do setegid!\n");
+	}
+	if (PL_statbuf.st_mode & S_ISUID) {
+	    if (PL_statbuf.st_uid != PL_euid)
+#ifdef HAS_SETEUID
+		(void)seteuid(PL_statbuf.st_uid);	/* all that for this */
+#else
+#ifdef HAS_SETREUID
+                (void)setreuid((Uid_t)-1,PL_statbuf.st_uid);
+#else
+#ifdef HAS_SETRESUID
+                (void)setresuid((Uid_t)-1,PL_statbuf.st_uid,(Uid_t)-1);
+#else
+		PerlProc_setuid(PL_statbuf.st_uid);
+#endif
+#endif
+#endif
+	    if (PerlProc_geteuid() != PL_statbuf.st_uid)
+		croak("Can't do seteuid!\n");
+	}
+	else if (PL_uid) {			/* oops, mustn't run as root */
+#ifdef HAS_SETEUID
+          (void)seteuid((Uid_t)PL_uid);
+#else
+#ifdef HAS_SETREUID
+          (void)setreuid((Uid_t)-1,(Uid_t)PL_uid);
+#else
+#ifdef HAS_SETRESUID
+          (void)setresuid((Uid_t)-1,(Uid_t)PL_uid,(Uid_t)-1);
+#else
+          PerlProc_setuid((Uid_t)PL_uid);
+#endif
+#endif
+#endif
+	    if (PerlProc_geteuid() != PL_uid)
+		croak("Can't do seteuid!\n");
+	}
+	init_ids();
+	if (!cando(S_IXUSR,TRUE,&PL_statbuf))
+	    croak("Permission denied\n");	/* they can't do this */
+    }
+#ifdef IAMSUID
+    else if (PL_preprocess)
+	croak("-P not allowed for setuid/setgid script\n");
+    else if (fdscript >= 0)
+	croak("fd script not allowed in suidperl\n");
+    else
+	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(PL_rsfp);
+    PerlLIO_lseek(PerlIO_fileno(PL_rsfp),(Off_t)0,0);  /* just in case rewind didn't */
+    for (which = 1; PL_origargv[which] && PL_origargv[which] != scriptname; which++) ;
+    if (!PL_origargv[which])
+	croak("Permission denied");
+    PL_origargv[which] = savepv(form("/dev/fd/%d/%s",
+				  PerlIO_fileno(PL_rsfp), PL_origargv[which]));
+#if defined(HAS_FCNTL) && defined(F_SETFD)
+    fcntl(PerlIO_fileno(PL_rsfp),F_SETFD,0);	/* ensure no close-on-exec */
+#endif
+    PerlProc_execv(form("%s/perl%s", BIN_EXP, PL_patchlevel), PL_origargv);/* try again */
+    croak("Can't do setuid\n");
+#endif /* IAMSUID */
+#else /* !DOSUID */
+    if (PL_euid != PL_uid || PL_egid != PL_gid) {	/* (suidperl doesn't exist, in fact) */
+#ifndef SETUID_SCRIPTS_ARE_SECURE_NOW
+	dTHR;
+	PerlLIO_fstat(PerlIO_fileno(PL_rsfp),&PL_statbuf);	/* may be either wrapped or real suid */
+	if ((PL_euid != PL_uid && PL_euid == PL_statbuf.st_uid && PL_statbuf.st_mode & S_ISUID)
+	    ||
+	    (PL_egid != PL_gid && PL_egid == PL_statbuf.st_gid && PL_statbuf.st_mode & S_ISGID)
+	   )
+	    if (!PL_do_undump)
+		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 */
+    }
+#endif /* DOSUID */
+}
+
+STATIC void
+find_beginning(void)
+{
+    register char *s, *s2;
+
+    /* skip forward in input to the real script? */
+
+    forbid_setid("-x");
+    while (PL_doextract) {
+	if ((s = sv_gets(PL_linestr, PL_rsfp, 0)) == Nullch)
+	    croak("No Perl script found in input\n");
+	if (*s == '#' && s[1] == '!' && (s = instr(s,"perl"))) {
+	    PerlIO_ungetc(PL_rsfp, '\n');		/* to keep line count right */
+	    PL_doextract = FALSE;
+	    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 (PL_cddir && PerlDir_chdir(PL_cddir) < 0)
+		croak("Can't chdir to %s",PL_cddir);
+	}
+    }
+}
+
+
+STATIC void
+init_ids(void)
+{
+    PL_uid = (int)PerlProc_getuid();
+    PL_euid = (int)PerlProc_geteuid();
+    PL_gid = (int)PerlProc_getgid();
+    PL_egid = (int)PerlProc_getegid();
+#ifdef VMS
+    PL_uid |= PL_gid << 16;
+    PL_euid |= PL_egid << 16;
+#endif
+    PL_tainting |= (PL_uid && (PL_euid != PL_uid || PL_egid != PL_gid));
+}
+
+STATIC void
+forbid_setid(char *s)
+{
+    if (PL_euid != PL_uid)
+        croak("No %s allowed while running setuid", s);
+    if (PL_egid != PL_gid)
+        croak("No %s allowed while running setgid", s);
+}
+
+STATIC void
+init_debugger(void)
+{
+    dTHR;
+    PL_curstash = PL_debstash;
+    PL_dbargs = GvAV(gv_AVadd((gv_fetchpv("args", GV_ADDMULTI, SVt_PVAV))));
+    AvREAL_off(PL_dbargs);
+    PL_DBgv = gv_fetchpv("DB", GV_ADDMULTI, SVt_PVGV);
+    PL_DBline = gv_fetchpv("dbline", GV_ADDMULTI, SVt_PVAV);
+    PL_DBsub = gv_HVadd(gv_fetchpv("sub", GV_ADDMULTI, SVt_PVHV));
+    PL_DBsingle = GvSV((gv_fetchpv("single", GV_ADDMULTI, SVt_PV)));
+    sv_setiv(PL_DBsingle, 0); 
+    PL_DBtrace = GvSV((gv_fetchpv("trace", GV_ADDMULTI, SVt_PV)));
+    sv_setiv(PL_DBtrace, 0); 
+    PL_DBsignal = GvSV((gv_fetchpv("signal", GV_ADDMULTI, SVt_PV)));
+    sv_setiv(PL_DBsignal, 0); 
+    PL_curstash = PL_defstash;
+}
+
+#ifndef STRESS_REALLOC
+#define REASONABLE(size) (size)
+#else
+#define REASONABLE(size) (1) /* unreasonable */
+#endif
+
+void
+init_stacks(ARGSproto)
+{
+    /* start with 128-item stack and 8K cxstack */
+    PL_curstackinfo = new_stackinfo(REASONABLE(128),
+				 REASONABLE(8192/sizeof(PERL_CONTEXT) - 1));
+    PL_curstackinfo->si_type = PERLSI_MAIN;
+    PL_curstack = PL_curstackinfo->si_stack;
+    PL_mainstack = PL_curstack;		/* remember in case we switch stacks */
+
+    PL_stack_base = AvARRAY(PL_curstack);
+    PL_stack_sp = PL_stack_base;
+    PL_stack_max = PL_stack_base + AvMAX(PL_curstack);
+
+    New(50,PL_tmps_stack,REASONABLE(128),SV*);
+    PL_tmps_floor = -1;
+    PL_tmps_ix = -1;
+    PL_tmps_max = REASONABLE(128);
+
+    New(54,PL_markstack,REASONABLE(32),I32);
+    PL_markstack_ptr = PL_markstack;
+    PL_markstack_max = PL_markstack + REASONABLE(32);
+
+    SET_MARKBASE;
+
+    New(54,PL_scopestack,REASONABLE(32),I32);
+    PL_scopestack_ix = 0;
+    PL_scopestack_max = REASONABLE(32);
+
+    New(54,PL_savestack,REASONABLE(128),ANY);
+    PL_savestack_ix = 0;
+    PL_savestack_max = REASONABLE(128);
+
+    New(54,PL_retstack,REASONABLE(16),OP*);
+    PL_retstack_ix = 0;
+    PL_retstack_max = REASONABLE(16);
+}
+
+#undef REASONABLE
+
+STATIC void
+nuke_stacks(void)
+{
+    dTHR;
+    while (PL_curstackinfo->si_next)
+	PL_curstackinfo = PL_curstackinfo->si_next;
+    while (PL_curstackinfo) {
+	PERL_SI *p = PL_curstackinfo->si_prev;
+	/* curstackinfo->si_stack got nuked by sv_free_arenas() */
+	Safefree(PL_curstackinfo->si_cxstack);
+	Safefree(PL_curstackinfo);
+	PL_curstackinfo = p;
+    }
+    Safefree(PL_tmps_stack);
+    Safefree(PL_markstack);
+    Safefree(PL_scopestack);
+    Safefree(PL_savestack);
+    Safefree(PL_retstack);
+    DEBUG( {
+	Safefree(PL_debname);
+	Safefree(PL_debdelim);
+    } )
+}
+
+#ifndef PERL_OBJECT
+static PerlIO *tmpfp;  /* moved outside init_lexer() because of UNICOS bug */
+#endif
+
+STATIC void
+init_lexer(void)
+{
+#ifdef PERL_OBJECT
+	PerlIO *tmpfp;
+#endif
+    tmpfp = PL_rsfp;
+    PL_rsfp = Nullfp;
+    lex_start(PL_linestr);
+    PL_rsfp = tmpfp;
+    PL_subname = newSVpv("main",4);
+}
+
+STATIC void
+init_predump_symbols(void)
+{
+    dTHR;
+    GV *tmpgv;
+    GV *othergv;
+
+    sv_setpvn(perl_get_sv("\"", TRUE), " ", 1);
+    PL_stdingv = gv_fetchpv("STDIN",TRUE, SVt_PVIO);
+    GvMULTI_on(PL_stdingv);
+    IoIFP(GvIOp(PL_stdingv)) = PerlIO_stdin();
+    tmpgv = gv_fetchpv("stdin",TRUE, SVt_PV);
+    GvMULTI_on(tmpgv);
+    GvIOp(tmpgv) = (IO*)SvREFCNT_inc(GvIOp(PL_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(PL_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));
+
+    PL_statname = NEWSV(66,0);		/* last filename we did stat on */
+
+    if (!PL_osname)
+	PL_osname = savepv(OSNAME);
+}
+
+STATIC void
+init_postdump_symbols(register int argc, register char **argv, register char **env)
+{
+    dTHR;
+    char *s;
+    SV *sv;
+    GV* tmpgv;
+
+    argc--,argv++;	/* skip name of script */
+    if (PL_doswitches) {
+	for (; argc > 0 && **argv == '-'; argc--,argv++) {
+	    if (!argv[0][1])
+		break;
+	    if (argv[0][1] == '-') {
+		argc--,argv++;
+		break;
+	    }
+	    if (s = strchr(argv[0], '=')) {
+		*s++ = '\0';
+		sv_setpv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),s);
+	    }
+	    else
+		sv_setiv(GvSV(gv_fetchpv(argv[0]+1,TRUE, SVt_PV)),1);
+	}
+    }
+    PL_toptarget = NEWSV(0,0);
+    sv_upgrade(PL_toptarget, SVt_PVFM);
+    sv_setpvn(PL_toptarget, "", 0);
+    PL_bodytarget = NEWSV(0,0);
+    sv_upgrade(PL_bodytarget, SVt_PVFM);
+    sv_setpvn(PL_bodytarget, "", 0);
+    PL_formtarget = PL_bodytarget;
+
+    TAINT;
+    if (tmpgv = gv_fetchpv("0",TRUE, SVt_PV)) {
+	sv_setpv(GvSV(tmpgv),PL_origfilename);
+	magicname("0", "0", 1);
+    }
+    if (tmpgv = gv_fetchpv("\030",TRUE, SVt_PV))
+	sv_setpv(GvSV(tmpgv),PL_origargv[0]);
+    if (PL_argvgv = gv_fetchpv("ARGV",TRUE, SVt_PVAV)) {
+	GvMULTI_on(PL_argvgv);
+	(void)gv_AVadd(PL_argvgv);
+	av_clear(GvAVn(PL_argvgv));
+	for (; argc > 0; argc--,argv++) {
+	    av_push(GvAVn(PL_argvgv),newSVpv(argv[0],0));
+	}
+    }
+    if (PL_envgv = gv_fetchpv("ENV",TRUE, SVt_PVHV)) {
+	HV *hv;
+	GvMULTI_on(PL_envgv);
+	hv = GvHVn(PL_envgv);
+	hv_magic(hv, PL_envgv, 'E');
+#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;
+	for (; *env; env++) {
+	    if (!(s = strchr(*env,'=')))
+		continue;
+	    *s++ = '\0';
+#if defined(MSDOS)
+	    (void)strupr(*env);
+#endif
+	    sv = newSVpv(s--,0);
+	    (void)hv_store(hv, *env, s - *env, sv, 0);
+	    *s = '=';
+#if defined(__BORLANDC__) && defined(USE_WIN32_RTL_ENV)
+	    /* Sins of the RTL. See note in my_setenv(). */
+	    (void)PerlEnv_putenv(savepv(*env));
+#endif
+	}
+#endif
+#ifdef DYNAMIC_ENV_FETCH
+	HvNAME(hv) = savepv(ENV_HV_NAME);
+#endif
+    }
+    TAINT_NOT;
+    if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV))
+	sv_setiv(GvSV(tmpgv), (IV)getpid());
+}
+
+STATIC void
+init_perllib(void)
+{
+    char *s;
+    if (!PL_tainting) {
+#ifndef VMS
+	s = PerlEnv_getenv("PERL5LIB");
+	if (s)
+	    incpush(s, TRUE);
+	else
+	    incpush(PerlEnv_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 */
+    }
+
+/* Use the ~-expanded versions of APPLLIB (undocumented),
+    ARCHLIB PRIVLIB SITEARCH and SITELIB 
+*/
+#ifdef APPLLIB_EXP
+    incpush(APPLLIB_EXP, TRUE);
+#endif
+
+#ifdef ARCHLIB_EXP
+    incpush(ARCHLIB_EXP, FALSE);
+#endif
+#ifndef PRIVLIB_EXP
+#define PRIVLIB_EXP "/usr/local/lib/perl5:/usr/local/lib/perl"
+#endif
+#if defined(WIN32) 
+    incpush(PRIVLIB_EXP, TRUE);
+#else
+    incpush(PRIVLIB_EXP, FALSE);
+#endif
+
+#ifdef SITEARCH_EXP
+    incpush(SITEARCH_EXP, FALSE);
+#endif
+#ifdef SITELIB_EXP
+#if defined(WIN32) 
+    incpush(SITELIB_EXP, TRUE);
+#else
+    incpush(SITELIB_EXP, FALSE);
+#endif
+#endif
+    if (!PL_tainting)
+	incpush(".", FALSE);
+}
+
+#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(char *p, int addsubdirs)
+{
+    SV *subdir = Nullsv;
+
+    if (!p)
+	return;
+
+    if (addsubdirs) {
+	subdir = sv_newmortal();
+	if (!PL_archpat_auto) {
+	    STRLEN len = (sizeof(ARCHNAME) + strlen(PL_patchlevel)
+			  + sizeof("//auto"));
+	    New(55, PL_archpat_auto, len, char);
+	    sprintf(PL_archpat_auto, "/%s/%s/auto", ARCHNAME, PL_patchlevel);
+#ifdef VMS
+	for (len = sizeof(ARCHNAME) + 2;
+	     PL_archpat_auto[len] != '\0' && PL_archpat_auto[len] != '/'; len++)
+		if (PL_archpat_auto[len] == '.') PL_archpat_auto[len] = '_';
+#endif
+	}
+    }
+
+    /* Break at all separators */
+    while (p && *p) {
+	SV *libdir = NEWSV(55,0);
+	char *s;
+
+	/* skip any consecutive separators */
+	while ( *p == PERLLIB_SEP ) {
+	    /* Uncomment the next line for PATH semantics */
+	    /* av_push(GvAVn(PL_incgv), newSVpv(".", 1)); */
+	    p++;
+	}
+
+	if ( (s = strchr(p, PERLLIB_SEP)) != Nullch ) {
+	    sv_setpvn(libdir, PERLLIB_MANGLE(p, (STRLEN)(s - p)),
+		      (STRLEN)(s - p));
+	    p = s + 1;
+	}
+	else {
+	    sv_setpv(libdir, PERLLIB_MANGLE(p, 0));
+	    p = Nullch;	/* break out */
+	}
+
+	/*
+	 * 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,PL_na),Nullch)) != Nullch) {
+		len = strlen(unix);
+		while (unix[len-1] == '/') len--;  /* Cosmetic */
+		sv_usepvn(libdir,unix,len);
+	    }
+	    else
+		PerlIO_printf(PerlIO_stderr(),
+		              "Failed to unixify @INC element \"%s\"\n",
+			      SvPV(libdir,PL_na));
+#endif
+	    /* .../archname/version if -d .../archname/version/auto */
+	    sv_setsv(subdir, libdir);
+	    sv_catpv(subdir, PL_archpat_auto);
+	    if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
+		  S_ISDIR(tmpstatbuf.st_mode))
+		av_push(GvAVn(PL_incgv),
+			newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
+
+	    /* .../archname if -d .../archname/auto */
+	    sv_insert(subdir, SvCUR(libdir) + sizeof(ARCHNAME),
+		      strlen(PL_patchlevel) + 1, "", 0);
+	    if (PerlLIO_stat(SvPVX(subdir), &tmpstatbuf) >= 0 &&
+		  S_ISDIR(tmpstatbuf.st_mode))
+		av_push(GvAVn(PL_incgv),
+			newSVpv(SvPVX(subdir), SvCUR(subdir) - sizeof "auto"));
+	}
+
+	/* finally push this lib directory on the end of @INC */
+	av_push(GvAVn(PL_incgv), libdir);
+    }
+}
+
+#ifdef USE_THREADS
+STATIC struct perl_thread *
+init_main_thread()
+{
+    struct perl_thread *thr;
+    XPV *xpv;
+
+    Newz(53, thr, 1, struct perl_thread);
+    PL_curcop = &PL_compiling;
+    thr->cvcache = newHV();
+    thr->threadsv = newAV();
+    /* thr->threadsvp is set when find_threadsv is called */
+    thr->specific = newAV();
+    thr->errhv = newHV();
+    thr->flags = THRf_R_JOINABLE;
+    MUTEX_INIT(&thr->mutex);
+    /* Handcraft thrsv similarly to mess_sv */
+    New(53, PL_thrsv, 1, SV);
+    Newz(53, xpv, 1, XPV);
+    SvFLAGS(PL_thrsv) = SVt_PV;
+    SvANY(PL_thrsv) = (void*)xpv;
+    SvREFCNT(PL_thrsv) = 1 << 30;	/* practically infinite */
+    SvPVX(PL_thrsv) = (char*)thr;
+    SvCUR_set(PL_thrsv, sizeof(thr));
+    SvLEN_set(PL_thrsv, sizeof(thr));
+    *SvEND(PL_thrsv) = '\0';	/* in the trailing_nul field */
+    thr->oursv = PL_thrsv;
+    PL_chopset = " \n-";
+
+    MUTEX_LOCK(&PL_threads_mutex);
+    PL_nthreads++;
+    thr->tid = 0;
+    thr->next = thr;
+    thr->prev = thr;
+    MUTEX_UNLOCK(&PL_threads_mutex);
+
+#ifdef HAVE_THREAD_INTERN
+    init_thread_intern(thr);
+#endif
+
+#ifdef SET_THREAD_SELF
+    SET_THREAD_SELF(thr);
+#else
+    thr->self = pthread_self();
+#endif /* SET_THREAD_SELF */
+    SET_THR(thr);
+
+    /*
+     * These must come after the SET_THR because sv_setpvn does
+     * SvTAINT and the taint fields require dTHR.
+     */
+    PL_toptarget = NEWSV(0,0);
+    sv_upgrade(PL_toptarget, SVt_PVFM);
+    sv_setpvn(PL_toptarget, "", 0);
+    PL_bodytarget = NEWSV(0,0);
+    sv_upgrade(PL_bodytarget, SVt_PVFM);
+    sv_setpvn(PL_bodytarget, "", 0);
+    PL_formtarget = PL_bodytarget;
+    thr->errsv = newSVpv("", 0);
+    (void) find_threadsv("@");	/* Ensure $@ is initialised early */
+
+    PL_maxscream = -1;
+    PL_regcompp = FUNC_NAME_TO_PTR(pregcomp);
+    PL_regexecp = FUNC_NAME_TO_PTR(regexec_flags);
+    PL_regindent = 0;
+    PL_reginterp_cnt = 0;
+
+    return thr;
+}
+#endif /* USE_THREADS */
+
+void
+call_list(I32 oldscope, AV *paramList)
+{
+    dTHR;
+    line_t oldline = PL_curcop->cop_line;
+    STRLEN len;
+    dJMPENV;
+    int ret;
+
+    while (AvFILL(paramList) >= 0) {
+	CV *cv = (CV*)av_shift(paramList);
+
+	SAVEFREESV(cv);
+
+	JMPENV_PUSH(ret);
+	switch (ret) {
+	case 0: {
+		SV* atsv = ERRSV;
+		PUSHMARK(PL_stack_sp);
+		perl_call_sv((SV*)cv, G_EVAL|G_DISCARD);
+		(void)SvPV(atsv, len);
+		if (len) {
+		    JMPENV_POP;
+		    PL_curcop = &PL_compiling;
+		    PL_curcop->cop_line = oldline;
+		    if (paramList == PL_beginav)
+			sv_catpv(atsv, "BEGIN failed--compilation aborted");
+		    else
+			sv_catpv(atsv, "END failed--cleanup aborted");
+		    while (PL_scopestack_ix > oldscope)
+			LEAVE;
+		    croak("%s", SvPVX(atsv));
+		}
+	    }
+	    break;
+	case 1:
+	    STATUS_ALL_FAILURE;
+	    /* FALL THROUGH */
+	case 2:
+	    /* my_exit() was called */
+	    while (PL_scopestack_ix > oldscope)
+		LEAVE;
+	    FREETMPS;
+	    PL_curstash = PL_defstash;
+	    if (PL_endav)
+		call_list(oldscope, PL_endav);
+	    JMPENV_POP;
+	    PL_curcop = &PL_compiling;
+	    PL_curcop->cop_line = oldline;
+	    if (PL_statusvalue) {
+		if (paramList == PL_beginav)
+		    croak("BEGIN failed--compilation aborted");
+		else
+		    croak("END failed--cleanup aborted");
+	    }
+	    my_exit_jump();
+	    /* NOTREACHED */
+	case 3:
+	    if (!PL_restartop) {
+		PerlIO_printf(PerlIO_stderr(), "panic: restartop\n");
+		FREETMPS;
+		break;
+	    }
+	    JMPENV_POP;
+	    PL_curcop = &PL_compiling;
+	    PL_curcop->cop_line = oldline;
+	    JMPENV_JUMP(3);
+	}
+	JMPENV_POP;
+    }
+}
+
+void
+my_exit(U32 status)
+{
+    dTHR;
+
+    DEBUG_S(PerlIO_printf(Perl_debug_log, "my_exit: thread %p, status %lu\n",
+			  thr, (unsigned long) status));
+    switch (status) {
+    case 0:
+	STATUS_ALL_SUCCESS;
+	break;
+    case 1:
+	STATUS_ALL_FAILURE;
+	break;
+    default:
+	STATUS_NATIVE_SET(status);
+	break;
+    }
+    my_exit_jump();
+}
+
+void
+my_failure_exit(void)
+{
+#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
+    int exitstatus;
+    if (errno & 255)
+	STATUS_POSIX_SET(errno);
+    else {
+	exitstatus = STATUS_POSIX >> 8; 
+	if (exitstatus & 255)
+	    STATUS_POSIX_SET(exitstatus);
+	else
+	    STATUS_POSIX_SET(255);
+    }
+#endif
+    my_exit_jump();
+}
+
+STATIC void
+my_exit_jump(void)
+{
+    dSP;
+    register PERL_CONTEXT *cx;
+    I32 gimme;
+    SV **newsp;
+
+    if (PL_e_script) {
+	SvREFCNT_dec(PL_e_script);
+	PL_e_script = Nullsv;
+    }
+
+    POPSTACK_TO(PL_mainstack);
+    if (cxstack_ix >= 0) {
+	if (cxstack_ix > 0)
+	    dounwind(0);
+	POPBLOCK(cx,PL_curpm);
+	LEAVE;
+    }
+
+    JMPENV_JUMP(2);
+}
+
+#ifdef PERL_OBJECT
+#define NO_XSLOCKS
+#endif  /* PERL_OBJECT */
+
+#include "XSUB.h"
+
+static I32
+#ifdef PERL_OBJECT
+read_e_script(CPerlObj *pPerl, int idx, SV *buf_sv, int maxlen)
+#else
+read_e_script(int idx, SV *buf_sv, int maxlen)
+#endif
+{
+    char *p, *nl;
+    p  = SvPVX(PL_e_script);
+    nl = strchr(p, '\n');
+    nl = (nl) ? nl+1 : SvEND(PL_e_script);
+    if (nl-p == 0) {
+	filter_del(read_e_script);
+	return 0;
+    }
+    sv_catpvn(buf_sv, p, nl-p);
+    sv_chop(PL_e_script, nl);
+    return 1;
+}
+
+