perl 4.0.00: (no release announcement available)perl-4.0.00

So far, 4.0 is still a beta test version.  For the last production
version, look in pub/perl.3.0/kits@44.

1 files changed, 0 insertions, 1159 deletions

diff --git a/perly.c b/perly.c
deleted file mode 100644
index 87acead688..0000000000
--- a/perly.c
+++ /dev/null
@@ -1,1159 +0,0 @@
-char rcsid[] = "$Header: perly.c,v 3.0.1.10 91/01/11 18:22:48 lwall Locked $\nPatch level: ###\n";
-/*
- *    Copyright (c) 1989, Larry Wall
- *
- *    You may distribute under the terms of the GNU General Public License
- *    as specified in the README file that comes with the perl 3.0 kit.
- *
- * $Log:	perly.c,v $
- * Revision 3.0.1.10  91/01/11  18:22:48  lwall
- * patch42: added -0 option
- * patch42: ANSIfied the stat mode checking
- * patch42: executables for multiple versions may now coexist
- * 
- * Revision 3.0.1.9  90/11/10  01:53:26  lwall
- * patch38: random cleanup
- * patch38: more msdos/os2 upgrades
- * patch38: references to $0 produced core dumps
- * patch38: added hooks for unexec()
- * 
- * Revision 3.0.1.8  90/10/16  10:14:20  lwall
- * patch29: *foo now prints as *package'foo
- * patch29: added waitpid
- * patch29: the debugger now understands packages and evals
- * patch29: added -M, -A and -C
- * patch29: -w sometimes printed spurious warnings about ARGV and ENV
- * patch29: require "./foo" didn't work right
- * patch29: require error messages referred to wrong file
- * 
- * Revision 3.0.1.7  90/08/13  22:22:22  lwall
- * patch28: defined(@array) and defined(%array) didn't work right
- * 
- * Revision 3.0.1.6  90/08/09  04:55:50  lwall
- * patch19: added -x switch to extract script from input trash
- * patch19: Added -c switch to do compilation only
- * patch19: added numeric interpretation of $]
- * patch19: added require operator
- * patch19: $0, %ENV, @ARGV were wrong in dumped script
- * patch19: . is now explicitly in @INC (and last)
- * 
- * Revision 3.0.1.5  90/03/27  16:20:57  lwall
- * patch16: MSDOS support
- * patch16: do FILE inside eval blows up
- * 
- * Revision 3.0.1.4  90/02/28  18:06:41  lwall
- * patch9: perl can now start up other interpreters scripts
- * patch9: nested evals clobbered their longjmp environment
- * patch9: eval could mistakenly return undef in array context
- * 
- * Revision 3.0.1.3  89/12/21  20:15:41  lwall
- * patch7: ANSI strerror() is now supported
- * patch7: errno may now be a macro with an lvalue
- * patch7: allowed setuid scripts to have a space after #!
- * 
- * Revision 3.0.1.2  89/11/17  15:34:42  lwall
- * patch5: fixed possible confusion about current effective gid
- * 
- * Revision 3.0.1.1  89/11/11  04:50:04  lwall
- * patch2: moved yydebug to where its type didn't matter
- * 
- * Revision 3.0  89/10/18  15:22:21  lwall
- * 3.0 baseline
- * 
- */
-
-#include "EXTERN.h"
-#include "perl.h"
-#include "perly.h"
-#ifdef MSDOS
-#include "patchlev.h"
-#else
-#include "patchlevel.h"
-#endif
-
-#ifdef IAMSUID
-#ifndef DOSUID
-#define DOSUID
-#endif
-#endif
-
-#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
-#ifdef DOSUID
-#undef DOSUID
-#endif
-#endif
-
-static char* moreswitches();
-static char* cddir;
-extern char **environ;
-static bool minus_c;
-static char patchlevel[6];
-
-main(argc,argv,env)
-register int argc;
-register char **argv;
-register char **env;
-{
-    register STR *str;
-    register char *s;
-    char *index(), *strcpy(), *getenv();
-    bool dosearch = FALSE;
-#ifdef DOSUID
-    char *validarg = "";
-#endif
-
-#ifdef SETUID_SCRIPTS_ARE_SECURE_NOW
-#ifdef IAMSUID
-#undef IAMSUID
-    fatal("suidperl is no longer needed since the kernel can now execute\n\
-setuid perl scripts securely.\n");
-#endif
-#endif
-
-    origargv = argv;
-    origargc = argc;
-    uid = (int)getuid();
-    euid = (int)geteuid();
-    gid = (int)getgid();
-    egid = (int)getegid();
-    sprintf(patchlevel,"%3.3s%2.2d", rcsid+19, 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
-    if (do_undump) {
-	origfilename = savestr(argv[0]);
-	do_undump = 0;
-	loop_ptr = -1;		/* start label stack again */
-	goto just_doit;
-    }
-    (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;
-    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 '0':
-	case 'a':
-	case 'c':
-	case 'd':
-	case 'D':
-	case 'i':
-	case 'n':
-	case 'p':
-	case 'u':
-	case 'U':
-	case 'v':
-	case 'w':
-	    if (s = moreswitches(s))
-		goto reswitch;
-	    break;
-
-	case 'e':
-#ifdef TAINT
-	    if (euid != uid || egid != gid)
-		fatal("No -e allowed in setuid scripts");
-#endif
-	    if (!e_fp) {
-	        e_tmpname = savestr(TMPPATH);
-		(void)mktemp(e_tmpname);
-		e_fp = fopen(e_tmpname,"w");
-		if (!e_fp)
-		    fatal("Cannot open temporary file");
-	    }
-	    if (argv[1]) {
-		fputs(argv[1],e_fp);
-		argc--,argv++;
-	    }
-	    (void)putc('\n', e_fp);
-	    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," ");
-	    if (*++s) {
-		(void)apush(stab_array(incstab),str_make(s,0));
-	    }
-	    else if (argv[1]) {
-		(void)apush(stab_array(incstab),str_make(argv[1],0));
-		str_cat(str,argv[1]);
-		argc--,argv++;
-		str_cat(str," ");
-	    }
-	    break;
-	case 'P':
-#ifdef TAINT
-	    if (euid != uid || egid != gid)
-		fatal("No -P allowed in setuid scripts");
-#endif
-	    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':
-	    dosearch = TRUE;
-	    s++;
-	    goto reswitch;
-	case 'x':
-	    doextract = TRUE;
-	    s++;
-	    if (*s)
-		cddir = savestr(s);
-	    break;
-	case '-':
-	    argc--,argv++;
-	    goto switch_end;
-	case 0:
-	    break;
-	default:
-	    fatal("Unrecognized switch: -%s",s);
-	}
-    }
-  switch_end:
-    if (e_fp) {
-	(void)fclose(e_fp);
-	argc++,argv--;
-	argv[0] = e_tmpname;
-    }
-#ifndef PRIVLIB
-#define PRIVLIB "/usr/local/lib/perl"
-#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);
-
-    /* open script */
-
-    if (argv[0] == Nullch)
-#ifdef MSDOS
-    {
-	if ( isatty(fileno(stdin)) )
-	  moreswitches("v");
-	argv[0] = "-";
-    }
-#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] != '\\')
-#endif
-		(void)strcat(tokenbuf+len,"/");
-	    (void)strcat(tokenbuf+len,argv[0]);
-#ifdef DEBUGGING
-	    if (debug & 1)
-		fprintf(stderr,"Looking for %s\n",tokenbuf);
-#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);
-	}
-	if (!xfound)
-	    fatal("Can't execute %s", xfailed ? xfailed : argv[0] );
-	if (xfailed)
-	    Safefree(xfailed);
-	argv[0] = savestr(xfound);
-    }
-
-    fdpid = anew(Nullstab);	/* for remembering popen pids by fd */
-    pidstatus = hnew(COEFFSIZE);/* for remembering status of dead pids */
-
-    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);
-	}
-#endif
-	doextract = FALSE;
-#ifdef IAMSUID				/* actually, this is caught earlier */
-	if (euid != uid && !euid)	/* if running suidperl */
-#ifdef SETEUID
-	    (void)seteuid(uid);		/* musn't stay setuid root */
-#else
-#ifdef SETREUID
-	    (void)setreuid(-1, uid);
-#else
-	    setuid(uid);
-#endif
-#endif
-#endif /* IAMSUID */
-	rsfp = mypopen(buf,"r");
-    }
-    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));
-    }
-    str_free(str);		/* free -I directories */
-
-    /* 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.
-     *
-     * 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;
-
-#ifdef IAMSUID
-#ifndef 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 (access(stab_val(curcmd->c_filestab)->str_ptr,1))	/*double check*/
-	    fatal("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 (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 (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);
-		}
-		fatal("Permission denied\n");
-	    }
-	    if (setreuid(uid,euid) < 0 || getuid() != uid || geteuid() != euid)
-		fatal("Can't reswap uid and euid");
-	    if (!cando(S_IXUSR,FALSE,&statbuf))		/* can real uid exec? */
-		fatal("Permission denied\n");
-	}
-#endif /* SETREUID */
-#endif /* IAMSUID */
-
-	if (!S_ISREG(statbuf.st_mode))
-	    fatal("Permission denied");
-	if (statbuf.st_mode & S_IWOTH)
-	    fatal("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;
-	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 (*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]))
-	    fatal("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\
-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);
-#ifndef IAMSUID
-	    (void)sprintf(buf, "%s/sperl%s", BIN, patchlevel);
-	    execv(buf, origargv);	/* try again */
-#endif
-	    fatal("Can't do setuid\n");
-	}
-
-	if (statbuf.st_mode & S_ISGID && statbuf.st_gid != egid)
-#ifdef SETEGID
-	    (void)setegid(statbuf.st_gid);
-#else
-#ifdef SETREGID
-	    (void)setregid((GIDTYPE)-1,statbuf.st_gid);
-#else
-	    setgid(statbuf.st_gid);
-#endif
-#endif
-	if (statbuf.st_mode & S_ISUID) {
-	    if (statbuf.st_uid != euid)
-#ifdef SETEUID
-		(void)seteuid(statbuf.st_uid);	/* all that for this */
-#else
-#ifdef SETREUID
-		(void)setreuid((UIDTYPE)-1,statbuf.st_uid);
-#else
-		setuid(statbuf.st_uid);
-#endif
-#endif
-	}
-	else if (uid)			/* oops, mustn't run as root */
-#ifdef SETEUID
-	    (void)seteuid((UIDTYPE)uid);
-#else
-#ifdef SETREUID
-	    (void)setreuid((UIDTYPE)-1,(UIDTYPE)uid);
-#else
-	    setuid((UIDTYPE)uid);
-#endif
-#endif
-	uid = (int)getuid();
-	euid = (int)geteuid();
-	gid = (int)getgid();
-	egid = (int)getegid();
-	if (!cando(S_IXUSR,TRUE,&statbuf))
-	    fatal("Permission denied\n");	/* they can't do this */
-    }
-#ifdef IAMSUID
-    else if (preprocess)
-	fatal("-P not allowed for setuid/setgid script\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 */
-#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 */
-	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\
-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)
-
-    /* skip forward in input to the real script? */
-
-    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 */
-	    doextract = FALSE;
-	    if (s = instr(s,"perl -")) {
-		s += 6;
-		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;
-    }
-
-    /* init tokener */
-
-    bufend = bufptr = str_get(linestr);
-
-    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);
-
-    /* now parse the script */
-
-    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);
-	}
-    }
-
-    New(50,loop_stack,128,struct loop);
-#ifdef DEBUGGING
-    if (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);
-    }
-
-    /* initialize everything that won't change if we undump */
-
-    if (sigstab = stabent("SIG",allstabs)) {
-	sigstab->str_pok |= SP_MULTI;
-	(void)hadd(sigstab);
-    }
-
-    magicalize("!#?^~=-%123456789.+&*()<>,\\/[|`':\024");
-    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;
-    }
-    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 */
-
-    if (do_undump)
-	my_unexec();
-
-  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] == '-') {
-		argc--,argv++;
-		break;
-	    }
-	    str_numset(stab_val(stabent(argv[0]+1,TRUE)),(double)1.0);
-	}
-    }
-#ifdef TAINT
-    tainted = 1;
-#endif
-    if (tmpstab = stabent("0",allstabs))
-	str_set(stab_val(tmpstab),origfilename);
-    if (argvstab = stabent("ARGV",allstabs)) {
-	argvstab->str_pok |= SP_MULTI;
-	(void)aadd(argvstab);
-	aclear(stab_array(argvstab));
-	for (; argc > 0; argc--,argv++) {
-	    (void)apush(stab_array(argvstab),str_make(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)
-	    environ[0] = Nullch;
-	for (; *env; env++) {
-	    if (!(s = index(*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);
-	    *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");
-#endif
-
-    if (minus_c) {
-	fprintf(stderr,"%s syntax OK\n", origfilename);
-	exit(0);
-    }
-
-    /* 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 */
-}
-
-magicalize(list)
-register char *list;
-{
-    char sym[2];
-
-    sym[1] = '\0';
-    while (*sym = *list++)
-	magicname(sym, Nullch, 0);
-}
-
-int
-magicname(sym,name,namlen)
-char *sym;
-char *name;
-int namlen;
-{
-    register STAB *stab;
-
-    if (stab = stabent(sym,allstabs)) {
-	stab_flags(stab) = SF_VMAGIC;
-	str_magic(stab_val(stab), stab, 0, name, namlen);
-    }
-}
-
-/* this routine is in perly.c by virtue of being sort of an alternate main() */
-
-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;
-    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;
-    static char *last_eval = Nullch;
-    static CMD *last_root = Nullcmd;
-    VOLATILE int sp = arglast[0];
-    char *specfilename;
-    char *tmpfilename;
-
-    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,";");		/* be kind to them */
-    }
-    else {
-	if (last_root && !in_eval) {
-	    Safefree(last_eval);
-	    cmd_free(last_root);
-	    last_root = Nullcmd;
-	}
-	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;
-	}
-	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);
-	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
-    if (setjmp(loop_stack[loop_ptr].loop_env)) {
-	retval = 1;
-	last_root = Nullcmd;
-    }
-    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 */
-	}
-	else if (in_eval == 1) {
-	    if (last_root) {
-		Safefree(last_eval);
-		cmd_free(last_root);
-	    }
-	    last_eval = savestr(bufptr);
-	    last_root = Nullcmd;
-	    retval = yyparse();
-	    retval |= error_count;
-	    if (!retval)
-		last_root = eval_root;
-	}
-	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;
-	last_root = Nullcmd;	/* can't free on error, for some reason */
-	if (rsfp) {
-	    fclose(rsfp);
-	    rsfp = 0;
-	}
-    }
-    else {
-	sp = cmd_exec(eval_root,gimme,sp);
-	st = stack->ary_array;
-	for (i = arglast[0] + 1; i <= sp; i++)
-	    st[i] = str_static(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 : "" );
-    }
-#endif
-    loop_ptr--;
-    tmps_base = oldtmps_base;
-    curspat = oldspat;
-    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 );
-	    }
-	    else if (optype == O_REQUIRE)
-		fatal("%s did not return a true value", specfilename);
-	}
-    }
-    curcmd = oldcurcmd;
-    return sp;
-}
-
-/* This routine handles any switches that can be given during run */
-
-static char *
-moreswitches(s)
-char *s;
-{
-  reswitch:
-    switch (*s) {
-    case '0':
-	record_separator = 0;
-	if (s[1] == '0' && !isdigit(s[2]))
-	    rslen = 0;
-	while (*s >= '0' && *s <= '7') {
-	    record_separator <<= 3;
-	    record_separator += *s++ & 7;
-	}
-	return s;
-    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);
-#else
-	warn("Recompile perl with -DDEBUGGING to use -D switch\n");
-#endif
-	break;
-    case 'i':
-	inplace = savestr(s+1);
-	for (s = inplace; *s && !isspace(*s); s++) ;
-	*s = '\0';
-	argvoutstab = stabent("ARGVOUT",TRUE);
-	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");
-	break;
-    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 3.0\n\n",stdout);
-	fputs(rcsid,stdout);
-	fputs("\nCopyright (c) 1989, 1990, 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 the GNU General Public License,\n\
-a copy of which can be found with the Perl 3.0 distribution kit.\n",stdout);
-#ifdef MSDOS
-        usage(origargv[0]);
-#endif
-	exit(0);
-    case 'w':
-	dowarn = TRUE;
-	s++;
-	return s;
-    case ' ':
-    case '\n':
-    case '\t':
-	break;
-    default:
-	fatal("Switch meaningless after -x: -%s",s);
-    }
-    return Nullch;
-}
-
-/* compliments of Tom Christiansen */
-
-/* unexec() can be found in the Gnu emacs distribution */
-
-my_unexec()
-{
-#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);
-#else
-    abort();		/* for use with undump */
-#endif
-}
-