Flatten vendor/tcsh/dist.

1 files changed, 0 insertions, 2088 deletions

diff --git a/contrib/tcsh/tc.func.c b/contrib/tcsh/tc.func.c
deleted file mode 100644
index e2db430..0000000
--- a/contrib/tcsh/tc.func.c
+++ /dev/null
@@ -1,2088 +0,0 @@
-/* $Header: /p/tcsh/cvsroot/tcsh/tc.func.c,v 3.136 2006/09/01 12:51:35 christos Exp $ */
-/*
- * tc.func.c: New tcsh builtins.
- */
-/*-
- * Copyright (c) 1980, 1991 The Regents of the University of California.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-#include "sh.h"
-
-RCSID("$tcsh: tc.func.c,v 3.136 2006/09/01 12:51:35 christos Exp $")
-
-#include "ed.h"
-#include "ed.defns.h"		/* for the function names */
-#include "tw.h"
-#include "tc.h"
-#ifdef WINNT_NATIVE
-#include "nt.const.h"
-#else /* WINNT_NATIVE */
-#include <sys/wait.h>
-#endif /* WINNT_NATIVE */
-
-#ifdef AFS
-#include <afs/stds.h>
-#include <afs/kautils.h>
-long ka_UserAuthenticateGeneral();
-#endif /* AFS */
-
-#ifdef TESLA
-extern int do_logout;
-#endif /* TESLA */
-extern time_t t_period;
-extern int just_signaled;
-static int precmd_active = 0;
-static int jobcmd_active = 0; /* GrP */
-static int postcmd_active = 0;
-static int periodic_active = 0;
-static int cwdcmd_active = 0;	/* PWP: for cwd_cmd */
-static int beepcmd_active = 0;
-static void (*alm_fun)(void) = NULL;
-
-static	void	 auto_logout	(void);
-static	char	*xgetpass	(const char *);
-static	void	 auto_lock	(void);
-#ifdef BSDJOBS
-static	void	 insert		(struct wordent *, int);
-static	void	 insert_we	(struct wordent *, struct wordent *);
-static	int	 inlist		(Char *, Char *);
-#endif /* BSDJOBS */
-static	int	 tildecompare	(const void *, const void *);
-static  Char    *gethomedir	(const Char *);
-#ifdef REMOTEHOST
-static	void	 palarm		(int);
-static	void	 getremotehost	(int);
-#endif /* REMOTEHOST */
-
-/*
- * Tops-C shell
- */
-
-/*
- * expand_lex: Take the given lex and return an expanded version of it.
- * First guy in lex list is ignored; last guy is ^J which we ignore.
- * Only take lex'es from position 'from' to position 'to' inclusive
- *
- * Note: csh sometimes sets bit 8 in characters which causes all kinds
- * of problems if we don't mask it here. Note: excl's in lexes have been
- * un-back-slashed and must be re-back-slashed
- *
- */
-/* PWP: this is a combination of the old sprlex() and the expand_lex from
-   the magic-space stuff */
-
-Char   *
-expand_lex(const struct wordent *sp0, int from, int to)
-{
-    struct Strbuf buf = Strbuf_INIT;
-    const struct wordent *sp;
-    Char *s;
-    Char prev_c;
-    int i;
-
-    prev_c = '\0';
-
-    if (!sp0 || (sp = sp0->next) == sp0 || sp == (sp0 = sp0->prev))
-	return Strbuf_finish(&buf); /* null lex */
-
-    for (i = 0; ; i++) {
-	if ((i >= from) && (i <= to)) {	/* if in range */
-	    for (s = sp->word; *s; s++) {
-		/*
-		 * bugfix by Michael Bloom: anything but the current history
-		 * character {(PWP) and backslash} seem to be dealt with
-		 * elsewhere.
-		 */
-		if ((*s & QUOTE)
-		    && (((*s & TRIM) == HIST) ||
-			(((*s & TRIM) == '\'') && (prev_c != '\\')) ||
-			(((*s & TRIM) == '\"') && (prev_c != '\\')) ||
-			(((*s & TRIM) == '\\') && (prev_c != '\\')))) {
-		    Strbuf_append1(&buf, '\\');
-		}
-		Strbuf_append1(&buf, *s & TRIM);
-		prev_c = *s;
-	    }
-	    Strbuf_append1(&buf, ' ');
-	}
-	sp = sp->next;
-	if (sp == sp0)
-	    break;
-    }
-    if (buf.len != 0)
-	buf.len--;		/* get rid of trailing space */
-
-    return Strbuf_finish(&buf);
-}
-
-Char   *
-sprlex(const struct wordent *sp0)
-{
-    return expand_lex(sp0, 0, INT_MAX);
-}
-
-
-Char *
-Itoa(int n, size_t min_digits, Char attributes)
-{
-    /*
-     * The array size here is derived from
-     *	log8(UINT_MAX)
-     * which is guaranteed to be enough for a decimal
-     * representation.  We add 1 because integer divide
-     * rounds down.
-     */
-#ifndef CHAR_BIT
-# define CHAR_BIT 8
-#endif
-    Char buf[CHAR_BIT * sizeof(int) / 3 + 1], *res, *p, *s;
-    unsigned int un;	/* handle most negative # too */
-    int pad = (min_digits != 0);
-
-    if (sizeof(buf) - 1 < min_digits)
-	min_digits = sizeof(buf) - 1;
-
-    un = n;
-    if (n < 0)
-	un = -n;
-
-    p = buf;
-    do {
-	*p++ = un % 10 + '0';
-	un /= 10;
-    } while ((pad && --min_digits > 0) || un != 0);
-
-    res = xmalloc((p - buf + 2) * sizeof(*res));
-    s = res;
-    if (n < 0)
-	*s++ = '-';
-    while (p > buf)
-	*s++ = *--p | attributes;
-
-    *s = '\0';
-    return res;
-}
-
-
-/*ARGSUSED*/
-void
-dolist(Char **v, struct command *c)
-{
-    Char **globbed;
-    int     i, k;
-    struct stat st;
-
-    USE(c);
-    if (*++v == NULL) {
-	struct Strbuf word = Strbuf_INIT;
-
-	Strbuf_terminate(&word);
-	cleanup_push(&word, Strbuf_cleanup);
-	(void) t_search(&word, LIST, TW_ZERO, 0, STRNULL, 0);
-	cleanup_until(&word);
-	return;
-    }
-    v = glob_all_or_error(v);
-    globbed = v;
-    cleanup_push(globbed, blk_cleanup);
-    for (k = 0; v[k] != NULL && v[k][0] != '-'; k++)
-	continue;
-    if (v[k]) {
-	/*
-	 * We cannot process a flag therefore we let ls do it right.
-	 */
-	Char *lspath;
-	struct command *t;
-	struct wordent cmd, *nextword, *lastword;
-	Char   *cp;
-	struct varent *vp;
-
-	if (setintr) {
-	    pintr_disabled++;
-	    cleanup_push(&pintr_disabled, disabled_cleanup);
-	}
-	if (seterr) {
-	    xfree(seterr);
-	    seterr = NULL;
-	}
-
-	lspath = STRls;
-	STRmCF[1] = 'C';
-	STRmCF[3] = '\0';
-	/* Look at listflags, to add -A to the flags, to get a path
-	   of ls if necessary */
-	if ((vp = adrof(STRlistflags)) != NULL && vp->vec != NULL &&
-	    vp->vec[0] != STRNULL) {
-	    if (vp->vec[1] != NULL && vp->vec[1][0] != '\0')
-		lspath = vp->vec[1];
-	    for (cp = vp->vec[0]; *cp; cp++)
-		switch (*cp) {
-		case 'x':
-		    STRmCF[1] = 'x';
-		    break;
-		case 'a':
-		    STRmCF[3] = 'a';
-		    break;
-		case 'A':
-		    STRmCF[3] = 'A';
-		    break;
-		default:
-		    break;
-		}
-	}
-
-	cmd.word = STRNULL;
-	lastword = &cmd;
-	nextword = xcalloc(1, sizeof cmd);
-	nextword->word = Strsave(lspath);
-	lastword->next = nextword;
-	nextword->prev = lastword;
-	lastword = nextword;
-	nextword = xcalloc(1, sizeof cmd);
-	nextword->word = Strsave(STRmCF);
-	lastword->next = nextword;
-	nextword->prev = lastword;
-#if defined(KANJI) && defined(SHORT_STRINGS) && defined(DSPMBYTE)
-	if (dspmbyte_ls) {
-	    lastword = nextword;
-	    nextword = xcalloc(1, sizeof cmd);
-	    nextword->word = Strsave(STRmmliteral);
-	    lastword->next = nextword;
-	    nextword->prev = lastword;
-	}
-#endif
-#ifdef COLOR_LS_F
-	if (color_context_ls) {
-	    lastword = nextword;
-	    nextword = xcalloc(1, sizeof cmd);
-	    nextword->word = Strsave(STRmmcolormauto);
-	    lastword->next = nextword;
-	    nextword->prev = lastword;
-	}
-#endif /* COLOR_LS_F */
-	lastword = nextword;
-	for (cp = *v; cp; cp = *++v) {
-	    nextword = xcalloc(1, sizeof cmd);
-	    nextword->word = quote(Strsave(cp));
-	    lastword->next = nextword;
-	    nextword->prev = lastword;
-	    lastword = nextword;
-	}
-	lastword->next = &cmd;
-	cmd.prev = lastword;
-	cleanup_push(&cmd, lex_cleanup);
-
-	/* build a syntax tree for the command. */
-	t = syntax(cmd.next, &cmd, 0);
-	cleanup_push(t, syntax_cleanup);
-	if (seterr)
-	    stderror(ERR_OLD);
-	/* expand aliases like process() does */
-	/* alias(&cmd); */
-	/* execute the parse tree. */
-	execute(t, tpgrp > 0 ? tpgrp : -1, NULL, NULL, FALSE);
-	/* done. free the lex list and parse tree. */
-	cleanup_until(&cmd);
-	if (setintr)
-	    cleanup_until(&pintr_disabled);
-    }
-    else {
-	Char   *dp, *tmp;
-	struct Strbuf buf = Strbuf_INIT;
-
-	cleanup_push(&buf, Strbuf_cleanup);
-	for (k = 0, i = 0; v[k] != NULL; k++) {
-	    tmp = dnormalize(v[k], symlinks == SYM_IGNORE);
-	    cleanup_push(tmp, xfree);
-	    dp = Strend(tmp) - 1;
-	    if (*dp == '/' && dp != tmp)
-#ifdef apollo
-		if (dp != &tmp[1])
-#endif /* apollo */
-		*dp = '\0';
-	    if (stat(short2str(tmp), &st) == -1) {
-		int err;
-
-		err = errno;
-		if (k != i) {
-		    if (i != 0)
-			xputchar('\n');
-		    print_by_column(STRNULL, &v[i], k - i, FALSE);
-		}
-		xprintf("%S: %s.\n", tmp, strerror(err));
-		i = k + 1;
-	    }
-	    else if (S_ISDIR(st.st_mode)) {
-		Char   *cp;
-
-		if (k != i) {
-		    if (i != 0)
-			xputchar('\n');
-		    print_by_column(STRNULL, &v[i], k - i, FALSE);
-		}
-		if (k != 0 && v[1] != NULL)
-		    xputchar('\n');
-		xprintf("%S:\n", tmp);
-		buf.len = 0;
-		for (cp = tmp; *cp; cp++)
-		    Strbuf_append1(&buf, (*cp | QUOTE));
-		Strbuf_terminate(&buf);
-		dp = &buf.s[buf.len - 1];
-		if (
-#ifdef WINNT_NATIVE
-		    (*dp != (Char) (':' | QUOTE)) &&
-#endif /* WINNT_NATIVE */
-		    (*dp != (Char) ('/' | QUOTE))) {
-		    Strbuf_append1(&buf, '/');
-		    Strbuf_terminate(&buf);
-		} else 
-		    *dp &= TRIM;
-		(void) t_search(&buf, LIST, TW_ZERO, 0, STRNULL, 0);
-		i = k + 1;
-	    }
-	    cleanup_until(tmp);
-	}
-	cleanup_until(&buf);
-	if (k != i) {
-	    if (i != 0)
-		xputchar('\n');
-	    print_by_column(STRNULL, &v[i], k - i, FALSE);
-	}
-    }
-
-    cleanup_until(globbed);
-}
-
-extern int GotTermCaps;
-
-/*ARGSUSED*/
-void
-dotelltc(Char **v, struct command *c)
-{
-    USE(v);
-    USE(c);
-    if (!GotTermCaps)
-	GetTermCaps();
-    TellTC();
-}
-
-/*ARGSUSED*/
-void
-doechotc(Char **v, struct command *c)
-{
-    USE(c);
-    if (!GotTermCaps)
-	GetTermCaps();
-    EchoTC(++v);
-}
-
-/*ARGSUSED*/
-void
-dosettc(Char **v, struct command *c)
-{
-    char    *tv[2];
-
-    USE(c);
-    if (!GotTermCaps)
-	GetTermCaps();
-
-    tv[0] = strsave(short2str(v[1]));
-    cleanup_push(tv[0], xfree);
-    tv[1] = strsave(short2str(v[2]));
-    cleanup_push(tv[1], xfree);
-    SetTC(tv[0], tv[1]);
-    cleanup_until(tv[0]);
-}
-
-/* The dowhich() is by:
- *  Andreas Luik <luik@isaak.isa.de>
- *  I S A  GmbH - Informationssysteme fuer computerintegrierte Automatisierung
- *  Azenberstr. 35
- *  D-7000 Stuttgart 1
- *  West-Germany
- * Thanks!!
- */
-int
-cmd_expand(Char *cmd, Char **str)
-{
-    struct wordent lexp[3];
-    struct varent *vp;
-    int rv = TRUE;
-
-    lexp[0].next = &lexp[1];
-    lexp[1].next = &lexp[2];
-    lexp[2].next = &lexp[0];
-
-    lexp[0].prev = &lexp[2];
-    lexp[1].prev = &lexp[0];
-    lexp[2].prev = &lexp[1];
-
-    lexp[0].word = STRNULL;
-    lexp[2].word = STRret;
-
-    if ((vp = adrof1(cmd, &aliases)) != NULL && vp->vec != NULL) {
-	if (str == NULL) {
-	    xprintf(CGETS(22, 1, "%S: \t aliased to "), cmd);
-	    blkpr(vp->vec);
-	    xputchar('\n');
-	}
-	else
-	    *str = blkexpand(vp->vec);
-    }
-    else {
-	lexp[1].word = cmd;
-	rv = tellmewhat(lexp, str);
-    }
-    return rv;
-}
-
-
-/*ARGSUSED*/
-void
-dowhich(Char **v, struct command *c)
-{
-    int rv = TRUE;
-    USE(c);
-
-    /*
-     * We don't want to glob dowhich args because we lose quoteing
-     * E.g. which \ls if ls is aliased will not work correctly if
-     * we glob here.
-     */
-
-    while (*++v) 
-	rv &= cmd_expand(*v, NULL);
-
-    if (!rv)
-	setcopy(STRstatus, STR1, VAR_READWRITE);
-}
-
-/* PWP: a hack to start up your stopped editor on a single keystroke */
-/* jbs - fixed hack so it worked :-) 3/28/89 */
-
-struct process *
-find_stop_ed(void)
-{
-    struct process *pp, *retp;
-    const char *ep, *vp;
-    char *cp, *p;
-    size_t epl, vpl;
-    int pstatus;
-
-    if ((ep = getenv("EDITOR")) != NULL) {	/* if we have a value */
-	if ((p = strrchr(ep, '/')) != NULL) 	/* if it has a path */
-	    ep = p + 1;		/* then we want only the last part */
-    }
-    else 
-	ep = "ed";
-
-    if ((vp = getenv("VISUAL")) != NULL) {	/* if we have a value */
-	if ((p = strrchr(vp, '/')) != NULL) 	/* and it has a path */
-	    vp = p + 1;		/* then we want only the last part */
-    }
-    else 
-	vp = "vi";
-
-    for (vpl = 0; vp[vpl] && !isspace((unsigned char)vp[vpl]); vpl++)
-	continue;
-    for (epl = 0; ep[epl] && !isspace((unsigned char)ep[epl]); epl++)
-	continue;
-
-    if (pcurrent == NULL)	/* see if we have any jobs */
-	return NULL;		/* nope */
-
-    retp = NULL;
-    for (pp = proclist.p_next; pp; pp = pp->p_next)
-	if (pp->p_procid == pp->p_jobid) {
-
-	    /*
-	     * Only foreground an edit session if it is suspended.  Some GUI
-	     * editors have may be happily running in a separate window, no
-	     * point in foregrounding these if they're already running - webb
-	     */
-	    pstatus = (int) (pp->p_flags & PALLSTATES);
-	    if (pstatus != PINTERRUPTED && pstatus != PSTOPPED &&
-		pstatus != PSIGNALED)
-		continue;
-
-	    p = short2str(pp->p_command);
-	    /* get the first word */
-	    for (cp = p; *cp && !isspace((unsigned char) *cp); cp++)
-		continue;
-	    *cp = '\0';
-		
-	    if ((cp = strrchr(p, '/')) != NULL)	/* and it has a path */
-		cp = cp + 1;		/* then we want only the last part */
-	    else
-		cp = p;			/* else we get all of it */
-
-	    /* if we find either in the current name, fg it */
-	    if (strncmp(ep, cp, epl) == 0 ||
-		strncmp(vp, cp, vpl) == 0) {
-
-		/*
-		 * If there is a choice, then choose the current process if
-		 * available, or the previous process otherwise, or else
-		 * anything will do - Robert Webb (robertw@mulga.cs.mu.oz.au).
-		 */
-		if (pp == pcurrent)
-		    return pp;
-		else if (retp == NULL || pp == pprevious)
-		    retp = pp;
-	    }
-	}
-
-    return retp;		/* Will be NULL if we didn't find a job */
-}
-
-void
-fg_proc_entry(struct process *pp)
-{
-    jmp_buf_t osetexit;
-    int    ohaderr;
-    Char    oGettingInput;
-    size_t omark;
-
-    getexit(osetexit);
-
-    pintr_disabled++;
-    oGettingInput = GettingInput;
-    GettingInput = 0;
-
-    ohaderr = haderr;		/* we need to ignore setting of haderr due to
-				 * process getting stopped by a signal */
-    omark = cleanup_push_mark();
-    if (setexit() == 0) {	/* come back here after pjwait */
-	pendjob();
-	(void) alarm(0);	/* No autologout */
-	alrmcatch_disabled = 1;
-	if (!pstart(pp, 1)) {
-	    pp->p_procid = 0;
-	    stderror(ERR_BADJOB, pp->p_command, strerror(errno));
-	}
-	pjwait(pp);
-    }
-    setalarm(1);		/* Autologout back on */
-    cleanup_pop_mark(omark);
-    resexit(osetexit);
-    haderr = ohaderr;
-    GettingInput = oGettingInput;
-
-    disabled_cleanup(&pintr_disabled);
-}
-
-static char *
-xgetpass(const char *prm)
-{
-    static struct strbuf pass; /* = strbuf_INIT; */
-    int fd;
-    sigset_t oset, set;
-    struct sigaction sa, osa;
-
-    sa.sa_handler = SIG_IGN;
-    sigemptyset(&sa.sa_mask);
-    sa.sa_flags = 0;
-    (void)sigaction(SIGINT, &sa, &osa);
-
-    sigemptyset(&set);
-    sigaddset(&set, SIGINT);
-    (void)sigprocmask(SIG_UNBLOCK, &set, &oset);
-
-    cleanup_push(&osa, sigint_cleanup);
-    cleanup_push(&oset, sigprocmask_cleanup);
-    (void) Rawmode();	/* Make sure, cause we want echo off */
-    fd = xopen("/dev/tty", O_RDWR|O_LARGEFILE);
-    if (fd == -1)
-	fd = SHIN;
-    else
-	cleanup_push(&fd, open_cleanup);
-
-    xprintf("%s", prm); flush();
-    pass.len = 0;
-    for (;;)  {
-	char c;
-
-	if (xread(fd, &c, 1) < 1 || c == '\n') 
-	    break;
-	strbuf_append1(&pass, c);
-    }
-    strbuf_terminate(&pass);
-
-    cleanup_until(&sa);
-
-    return pass.s;
-}
-
-#ifndef NO_CRYPT
-#if !HAVE_DECL_CRYPT
-    extern char *crypt ();
-#endif
-#ifdef HAVE_CRYPT_H
-#include <crypt.h>
-#endif
-#endif
-
-/*
- * Ask the user for his login password to continue working
- * On systems that have a shadow password, this will only 
- * work for root, but what can we do?
- *
- * If we fail to get the password, then we log the user out
- * immediately
- */
-/*ARGSUSED*/
-static void
-auto_lock(void)
-{
-#ifndef NO_CRYPT
-
-    int i;
-    char *srpp = NULL;
-    struct passwd *pw;
-
-#undef XCRYPT
-
-#if defined(HAVE_AUTH_H) && defined(HAVE_GETAUTHUID)
-
-    struct authorization *apw;
-    extern char *crypt16 (const char *, const char *);
-
-# define XCRYPT(a, b) crypt16(a, b)
-
-    if ((pw = xgetpwuid(euid)) != NULL &&	/* effective user passwd  */
-        (apw = getauthuid(euid)) != NULL) 	/* enhanced ultrix passwd */
-	srpp = apw->a_password;
-
-#elif defined(HAVE_SHADOW_H)
-
-    struct spwd *spw;
-
-# define XCRYPT(a, b) crypt(a, b)
-
-    if ((pw = xgetpwuid(euid)) != NULL)	{	/* effective user passwd  */
-	errno = 0;
-	while ((spw = getspnam(pw->pw_name)) == NULL && errno == EINTR) {
-	    handle_pending_signals();
-	    errno = 0;
-	}
-	if (spw != NULL)			 /* shadowed passwd	  */
-	    srpp = spw->sp_pwdp;
-    }
-
-#else
-
-#define XCRYPT(a, b) crypt(a, b)
-
-#if !defined(__MVS__)
-    if ((pw = xgetpwuid(euid)) != NULL)	/* effective user passwd  */
-	srpp = pw->pw_passwd;
-#endif /* !MVS */
-
-#endif
-
-    if (srpp == NULL) {
-	auto_logout();
-	/*NOTREACHED*/
-	return;
-    }
-
-    setalarm(0);		/* Not for locking any more */
-    xputchar('\n');
-    for (i = 0; i < 5; i++) {
-	const char *crpp;
-	char *pp;
-#ifdef AFS
-	char *afsname;
-	Char *safs;
-
-	if ((safs = varval(STRafsuser)) != STRNULL)
-	    afsname = short2str(safs);
-	else
-	    if ((afsname = getenv("AFSUSER")) == NULL)
-	        afsname = pw->pw_name;
-#endif
-	pp = xgetpass("Password:");
-
-	crpp = XCRYPT(pp, srpp);
-	if ((strcmp(crpp, srpp) == 0)
-#ifdef AFS
-	    || (ka_UserAuthenticateGeneral(KA_USERAUTH_VERSION,
-					   afsname,     /* name */
-					   NULL,        /* instance */
-					   NULL,        /* realm */
-					   pp,          /* password */
-					   0,           /* lifetime */
-					   0, 0,         /* spare */
-					   NULL)        /* reason */
-	    == 0)
-#endif /* AFS */
-	    ) {
-	    (void) memset(pp, 0, strlen(pp));
-	    if (GettingInput && !just_signaled) {
-		(void) Rawmode();
-		ClearLines();
-		ClearDisp();
-		Refresh();
-	    }
-	    just_signaled = 0;
-	    return;
-	}
-	xprintf(CGETS(22, 2, "\nIncorrect passwd for %s\n"), pw->pw_name);
-    }
-#endif /* NO_CRYPT */
-    auto_logout();
-}
-
-
-static void
-auto_logout(void)
-{
-    xprintf("auto-logout\n");
-    /* Don't leave the tty in raw mode */
-    if (editing)
-	(void) Cookedmode();
-    xclose(SHIN);
-    setcopy(STRlogout, STRautomatic, VAR_READWRITE);
-    child = 1;
-#ifdef TESLA
-    do_logout = 1;
-#endif /* TESLA */
-    GettingInput = FALSE; /* make flush() work to write hist files. Huber*/
-    goodbye(NULL, NULL);
-}
-
-void
-alrmcatch(void)
-{
-    (*alm_fun)();
-    setalarm(1);
-}
-
-/*
- * Karl Kleinpaste, 21oct1983.
- * Added precmd(), which checks for the alias
- * precmd in aliases.  If it's there, the alias
- * is executed as a command.  This is done
- * after mailchk() and just before print-
- * ing the prompt.  Useful for things like printing
- * one's current directory just before each command.
- */
-void
-precmd(void)
-{
-    pintr_disabled++;
-    cleanup_push(&pintr_disabled, disabled_cleanup);
-    if (precmd_active) {	/* an error must have been caught */
-	aliasrun(2, STRunalias, STRprecmd);
-	xprintf(CGETS(22, 3, "Faulty alias 'precmd' removed.\n"));
-	goto leave;
-    }
-    precmd_active = 1;
-    if (!whyles && adrof1(STRprecmd, &aliases))
-	aliasrun(1, STRprecmd, NULL);
-leave:
-    precmd_active = 0;
-    cleanup_until(&pintr_disabled);
-}
-
-void
-postcmd(void)
-{
-    pintr_disabled++;
-    cleanup_push(&pintr_disabled, disabled_cleanup);
-    if (postcmd_active) {	/* an error must have been caught */
-	aliasrun(2, STRunalias, STRpostcmd);
-	xprintf(CGETS(22, 3, "Faulty alias 'postcmd' removed.\n"));
-	goto leave;
-    }
-    postcmd_active = 1;
-    if (!whyles && adrof1(STRpostcmd, &aliases))
-	aliasrun(1, STRpostcmd, NULL);
-leave:
-    postcmd_active = 0;
-    cleanup_until(&pintr_disabled);
-}
-
-/*
- * Paul Placeway  11/24/87  Added cwd_cmd by hacking precmd() into
- * submission...  Run every time $cwd is set (after it is set).  Useful
- * for putting your machine and cwd (or anything else) in an xterm title
- * space.
- */
-void
-cwd_cmd(void)
-{
-    pintr_disabled++;
-    cleanup_push(&pintr_disabled, disabled_cleanup);
-    if (cwdcmd_active) {	/* an error must have been caught */
-	aliasrun(2, STRunalias, STRcwdcmd);
-	xprintf(CGETS(22, 4, "Faulty alias 'cwdcmd' removed.\n"));
-	goto leave;
-    }
-    cwdcmd_active = 1;
-    if (!whyles && adrof1(STRcwdcmd, &aliases))
-	aliasrun(1, STRcwdcmd, NULL);
-leave:
-    cwdcmd_active = 0;
-    cleanup_until(&pintr_disabled);
-}
-
-/*
- * Joachim Hoenig  07/16/91  Added beep_cmd, run every time tcsh wishes 
- * to beep the terminal bell. Useful for playing nice sounds instead.
- */
-void
-beep_cmd(void)
-{
-    pintr_disabled++;
-    cleanup_push(&pintr_disabled, disabled_cleanup);
-    if (beepcmd_active) {	/* an error must have been caught */
-	aliasrun(2, STRunalias, STRbeepcmd);
-	xprintf(CGETS(22, 5, "Faulty alias 'beepcmd' removed.\n"));
-    }
-    else {
-	beepcmd_active = 1;
-	if (!whyles && adrof1(STRbeepcmd, &aliases))
-	    aliasrun(1, STRbeepcmd, NULL);
-    }
-    beepcmd_active = 0;
-    cleanup_until(&pintr_disabled);
-}
-
-
-/*
- * Karl Kleinpaste, 18 Jan 1984.
- * Added period_cmd(), which executes the alias "periodic" every
- * $tperiod minutes.  Useful for occasional checking of msgs and such.
- */
-void
-period_cmd(void)
-{
-    Char *vp;
-    time_t  t, interval;
-
-    pintr_disabled++;
-    cleanup_push(&pintr_disabled, disabled_cleanup);
-    if (periodic_active) {	/* an error must have been caught */
-	aliasrun(2, STRunalias, STRperiodic);
-	xprintf(CGETS(22, 6, "Faulty alias 'periodic' removed.\n"));
-	goto leave;
-    }
-    periodic_active = 1;
-    if (!whyles && adrof1(STRperiodic, &aliases)) {
-	vp = varval(STRtperiod);
-	if (vp == STRNULL) {
-	    aliasrun(1, STRperiodic, NULL);
-	    goto leave;
-	}
-	interval = getn(vp);
-	(void) time(&t);
-	if (t - t_period >= interval * 60) {
-	    t_period = t;
-	    aliasrun(1, STRperiodic, NULL);
-	}
-    }
-leave:
-    periodic_active = 0;
-    cleanup_until(&pintr_disabled);
-}
-
-
-/* 
- * GrP Greg Parker May 2001
- * Added job_cmd(), which is run every time a job is started or 
- * foregrounded. The command is passed a single argument, the string 
- * used to start the job originally. With precmd, useful for setting 
- * xterm titles.
- * Cloned from cwd_cmd().
- */
-void
-job_cmd(Char *args)
-{
-    pintr_disabled++;
-    cleanup_push(&pintr_disabled, disabled_cleanup);
-    if (jobcmd_active) {	/* an error must have been caught */
-	aliasrun(2, STRunalias, STRjobcmd);
-	xprintf(CGETS(22, 14, "Faulty alias 'jobcmd' removed.\n"));
-	goto leave;
-    }
-    jobcmd_active = 1;
-    if (!whyles && adrof1(STRjobcmd, &aliases)) {
-	struct process *pp = pcurrjob; /* put things back after the hook */
-	aliasrun(2, STRjobcmd, args);
-	pcurrjob = pp;
-    }
-leave:
-    jobcmd_active = 0;
-    cleanup_until(&pintr_disabled);
-}
-
-
-/*
- * Karl Kleinpaste, 21oct1983.
- * Set up a one-word alias command, for use for special things.
- * This code is based on the mainline of process().
- */
-void
-aliasrun(int cnt, Char *s1, Char *s2)
-{
-    struct wordent w, *new1, *new2;	/* for holding alias name */
-    struct command *t = NULL;
-    jmp_buf_t osetexit;
-    int status;
-    size_t omark;
-
-    getexit(osetexit);
-    if (seterr) {
-	xfree(seterr);
-	seterr = NULL;	/* don't repeatedly print err msg. */
-    }
-    w.word = STRNULL;
-    new1 = xcalloc(1, sizeof w);
-    new1->word = Strsave(s1);
-    if (cnt == 1) {
-	/* build a lex list with one word. */
-	w.next = w.prev = new1;
-	new1->next = new1->prev = &w;
-    }
-    else {
-	/* build a lex list with two words. */
-	new2 = xcalloc(1, sizeof w);
-	new2->word = Strsave(s2);
-	w.next = new2->prev = new1;
-	new1->next = w.prev = new2;
-	new1->prev = new2->next = &w;
-    }
-    cleanup_push(&w, lex_cleanup);
-
-    /* Save the old status */
-    status = getn(varval(STRstatus));
-
-    /* expand aliases like process() does. */
-    alias(&w);
-    /* build a syntax tree for the command. */
-    t = syntax(w.next, &w, 0);
-    cleanup_push(t, syntax_cleanup);
-    if (seterr)
-	stderror(ERR_OLD);
-
-    psavejob();
-    cleanup_push(&cnt, psavejob_cleanup); /* cnt is used only as a marker */
-
-    /* catch any errors here */
-    omark = cleanup_push_mark();
-    if (setexit() == 0)
-	/* execute the parse tree. */
-	/*
-	 * From: Michael Schroeder <mlschroe@immd4.informatik.uni-erlangen.de>
-	 * was execute(t, tpgrp);
-	 */
-	execute(t, tpgrp > 0 ? tpgrp : -1, NULL, NULL, TRUE);
-    /* reset the error catcher to the old place */
-    cleanup_pop_mark(omark);
-    resexit(osetexit);
-    if (haderr) {
-	haderr = 0;
-	/*
-	 * Either precmd, or cwdcmd, or periodic had an error. Call it again so
-	 * that it is removed
-	 */
-	if (precmd_active)
-	    precmd();
-	if (postcmd_active)
-	    postcmd();
-#ifdef notdef
-	/*
-	 * XXX: On the other hand, just interrupting them causes an error too.
-	 * So if we hit ^C in the middle of cwdcmd or periodic the alias gets
-	 * removed. We don't want that. Note that we want to remove precmd
-	 * though, cause that could lead into an infinite loop. This should be
-	 * fixed correctly, but then haderr should give us the whole exit
-	 * status not just true or false.
-	 */
-	else if (cwdcmd_active)
-	    cwd_cmd();
-	else if (beepcmd_active)
-	    beep_cmd();
-	else if (periodic_active)
-	    period_cmd();
-#endif /* notdef */
-    }
-    cleanup_until(&w);
-    pendjob();
-    /* Restore status */
-    setv(STRstatus, putn(status), VAR_READWRITE);
-}
-
-void
-setalarm(int lck)
-{
-    struct varent *vp;
-    Char   *cp;
-    unsigned alrm_time = 0, logout_time, lock_time;
-    time_t cl, nl, sched_dif;
-
-    if ((vp = adrof(STRautologout)) != NULL && vp->vec != NULL) {
-	if ((cp = vp->vec[0]) != 0) {
-	    if ((logout_time = (unsigned) atoi(short2str(cp)) * 60) > 0) {
-#ifdef SOLARIS2
-		/*
-		 * Solaris alarm(2) uses a timer based in clock ticks
-		 * internally so it multiplies our value with CLK_TCK...
-		 * Of course that can overflow leading to unexpected
-		 * results, so we clip it here. Grr. Where is that
-		 * documented folks?
-		 */
-		if (logout_time >= 0x7fffffff / CLK_TCK)
-			logout_time = 0x7fffffff / CLK_TCK;
-#endif /* SOLARIS2 */
-		alrm_time = logout_time;
-		alm_fun = auto_logout;
-	    }
-	}
-	if ((cp = vp->vec[1]) != 0) {
-	    if ((lock_time = (unsigned) atoi(short2str(cp)) * 60) > 0) {
-		if (lck) {
-		    if (alrm_time == 0 || lock_time < alrm_time) {
-			alrm_time = lock_time;
-			alm_fun = auto_lock;
-		    }
-		}
-		else /* lock_time always < alrm_time */
-		    if (alrm_time)
-			alrm_time -= lock_time;
-	    }
-	}
-    }
-    if ((nl = sched_next()) != -1) {
-	(void) time(&cl);
-	sched_dif = nl > cl ? nl - cl : 0;
-	if ((alrm_time == 0) || ((unsigned) sched_dif < alrm_time)) {
-	    alrm_time = ((unsigned) sched_dif) + 1;
-	    alm_fun = sched_run;
-	}
-    }
-    alrmcatch_disabled = 0;
-    (void) alarm(alrm_time);	/* Autologout ON */
-}
-
-#undef RMDEBUG			/* For now... */
-
-void
-rmstar(struct wordent *cp)
-{
-    struct wordent *we, *args;
-    struct wordent *tmp, *del;
-
-#ifdef RMDEBUG
-    static Char STRrmdebug[] = {'r', 'm', 'd', 'e', 'b', 'u', 'g', '\0'};
-    Char   *tag;
-#endif /* RMDEBUG */
-    Char   *charac;
-    char    c;
-    int     ask, doit, star = 0, silent = 0;
-
-    if (!adrof(STRrmstar))
-	return;
-#ifdef RMDEBUG
-    tag = varval(STRrmdebug);
-#endif /* RMDEBUG */
-    we = cp->next;
-    while (*we->word == ';' && we != cp)
-	we = we->next;
-    while (we != cp) {
-#ifdef RMDEBUG
-	if (*tag)
-	    xprintf(CGETS(22, 7, "parsing command line\n"));
-#endif /* RMDEBUG */
-	if (!Strcmp(we->word, STRrm)) {
-	    args = we->next;
-	    ask = (*args->word != '-');
-	    while (*args->word == '-' && !silent) {	/* check options */
-		for (charac = (args->word + 1); *charac && !silent; charac++)
-		    silent = (*charac == 'i' || *charac == 'f');
-		args = args->next;
-	    }
-	    ask = (ask || (!ask && !silent));
-	    if (ask) {
-		for (; !star && *args->word != ';'
-		     && args != cp; args = args->next)
-		    if (!Strcmp(args->word, STRstar))
-			star = 1;
-		if (ask && star) {
-		    xprintf(CGETS(22, 8,
-			    "Do you really want to delete all files? [n/y] "));
-		    flush();
-		    (void) force_read(SHIN, &c, 1);
-		    /* 
-		     * Perhaps we should use the yesexpr from the
-		     * actual locale
-		     */
-		    doit = (strchr(CGETS(22, 14, "Yy"), c) != NULL);
-		    while (c != '\n' && force_read(SHIN, &c, 1) == 1)
-			continue;
-		    if (!doit) {
-			/* remove the command instead */
-#ifdef RMDEBUG
-			if (*tag)
-			    xprintf(CGETS(22, 9,
-				    "skipping deletion of files!\n"));
-#endif /* RMDEBUG */
-			for (tmp = we;
-			     *tmp->word != '\n' &&
-			     *tmp->word != ';' && tmp != cp;) {
-			    tmp->prev->next = tmp->next;
-			    tmp->next->prev = tmp->prev;
-			    xfree(tmp->word);
-			    del = tmp;
-			    tmp = tmp->next;
-			    xfree(del);
-			}
-			if (*tmp->word == ';') {
-			    tmp->prev->next = tmp->next;
-			    tmp->next->prev = tmp->prev;
-			    xfree(tmp->word);
-			    del = tmp;
-			    tmp = tmp->next;
-			    xfree(del);
-			}
-			we = tmp;
-			continue;
-		    }
-		}
-	    }
-	}
-	for (we = we->next;
-	     *we->word != ';' && we != cp;
-	     we = we->next)
-	    continue;
-	if (*we->word == ';')
-	    we = we->next;
-    }
-#ifdef RMDEBUG
-    if (*tag) {
-	xprintf(CGETS(22, 10, "command line now is:\n"));
-	for (we = cp->next; we != cp; we = we->next)
-	    xprintf("%S ", we->word);
-    }
-#endif /* RMDEBUG */
-    return;
-}
-
-#ifdef BSDJOBS
-/* Check if command is in continue list
-   and do a "aliasing" if it exists as a job in background */
-
-#undef CNDEBUG			/* For now */
-void
-continue_jobs(struct wordent *cp)
-{
-    struct wordent *we;
-    struct process *pp, *np;
-    Char   *cmd, *continue_list, *continue_args_list;
-
-#ifdef CNDEBUG
-    Char   *tag;
-    static Char STRcndebug[] =
-    {'c', 'n', 'd', 'e', 'b', 'u', 'g', '\0'};
-#endif /* CNDEBUG */
-    int    in_cont_list, in_cont_arg_list;
-
-
-#ifdef CNDEBUG
-    tag = varval(STRcndebug);
-#endif /* CNDEBUG */
-    continue_list = varval(STRcontinue);
-    continue_args_list = varval(STRcontinue_args);
-    if (*continue_list == '\0' && *continue_args_list == '\0')
-	return;
-
-    we = cp->next;
-    while (*we->word == ';' && we != cp)
-	we = we->next;
-    while (we != cp) {
-#ifdef CNDEBUG
-	if (*tag)
-	    xprintf(CGETS(22, 11, "parsing command line\n"));
-#endif /* CNDEBUG */
-	cmd = we->word;
-	in_cont_list = inlist(continue_list, cmd);
-	in_cont_arg_list = inlist(continue_args_list, cmd);
-	if (in_cont_list || in_cont_arg_list) {
-#ifdef CNDEBUG
-	    if (*tag)
-		xprintf(CGETS(22, 12, "in one of the lists\n"));
-#endif /* CNDEBUG */
-	    np = NULL;
-	    for (pp = proclist.p_next; pp; pp = pp->p_next) {
-		if (prefix(cmd, pp->p_command)) {
-		    if (pp->p_index) {
-			np = pp;
-			break;
-		    }
-		}
-	    }
-	    if (np) {
-		insert(we, in_cont_arg_list);
-	    }
-	}
-	for (we = we->next;
-	     *we->word != ';' && we != cp;
-	     we = we->next)
-	    continue;
-	if (*we->word == ';')
-	    we = we->next;
-    }
-#ifdef CNDEBUG
-    if (*tag) {
-	xprintf(CGETS(22, 13, "command line now is:\n"));
-	for (we = cp->next; we != cp; we = we->next)
-	    xprintf("%S ", we->word);
-    }
-#endif /* CNDEBUG */
-    return;
-}
-
-/* The actual "aliasing" of for backgrounds() is done here
-   with the aid of insert_we().   */
-static void
-insert(struct wordent *pl, int file_args)
-{
-    struct wordent *now, *last;
-    Char   *cmd, *bcmd, *cp1, *cp2;
-    size_t cmd_len;
-    Char   *upause = STRunderpause;
-    size_t p_len = Strlen(upause);
-
-    cmd_len = Strlen(pl->word);
-    cmd = xcalloc(1, (cmd_len + 1) * sizeof(Char));
-    (void) Strcpy(cmd, pl->word);
-/* Do insertions at beginning, first replace command word */
-
-    if (file_args) {
-	now = pl;
-	xfree(now->word);
-	now->word = xcalloc(1, 5 * sizeof(Char));
-	(void) Strcpy(now->word, STRecho);
-
-	now = xcalloc(1, sizeof(struct wordent));
-	now->word = xcalloc(1, 6 * sizeof(Char));
-	(void) Strcpy(now->word, STRbackqpwd);
-	insert_we(now, pl);
-
-	for (last = now; *last->word != '\n' && *last->word != ';';
-	     last = last->next)
-	    continue;
-
-	now = xcalloc(1, sizeof(struct wordent));
-	now->word = xcalloc(1, 2 * sizeof(Char));
-	(void) Strcpy(now->word, STRgt);
-	insert_we(now, last->prev);
-
-	now = xcalloc(1, sizeof(struct wordent));
-	now->word = xcalloc(1, 2 * sizeof(Char));
-	(void) Strcpy(now->word, STRbang);
-	insert_we(now, last->prev);
-
-	now = xcalloc(1, sizeof(struct wordent));
-	now->word = xcalloc(1, (cmd_len + p_len + 4) * sizeof(Char));
-	cp1 = now->word;
-	cp2 = cmd;
-	*cp1++ = '~';
-	*cp1++ = '/';
-	*cp1++ = '.';
-	while ((*cp1++ = *cp2++) != '\0')
-	    continue;
-	cp1--;
-	cp2 = upause;
-	while ((*cp1++ = *cp2++) != '\0')
-	    continue;
-	insert_we(now, last->prev);
-
-	now = xcalloc(1, sizeof(struct wordent));
-	now->word = xcalloc(1, 2 * sizeof(Char));
-	(void) Strcpy(now->word, STRsemi);
-	insert_we(now, last->prev);
-	bcmd = xcalloc(1, (cmd_len + 2) * sizeof(Char));
-	*bcmd = '%';
-	Strcpy(bcmd + 1, cmd);
-	now = xcalloc(1, sizeof(struct wordent));
-	now->word = bcmd;
-	insert_we(now, last->prev);
-    }
-    else {
-	struct wordent *del;
-
-	now = pl;
-	xfree(now->word);
-	now->word = xcalloc(1, (cmd_len + 2) * sizeof(Char));
-	*now->word = '%';
-	Strcpy(now->word + 1, cmd);
-	for (now = now->next;
-	     *now->word != '\n' && *now->word != ';' && now != pl;) {
-	    now->prev->next = now->next;
-	    now->next->prev = now->prev;
-	    xfree(now->word);
-	    del = now;
-	    now = now->next;
-	    xfree(del);
-	}
-    }
-}
-
-static void
-insert_we(struct wordent *new, struct wordent *where)
-{
-
-    new->prev = where;
-    new->next = where->next;
-    where->next = new;
-    new->next->prev = new;
-}
-
-static int
-inlist(Char *list, Char *name)
-{
-    Char *l, *n;
-
-    l = list;
-    n = name;
-
-    while (*l && *n) {
-	if (*l == *n) {
-	    l++;
-	    n++;
-	    if (*n == '\0' && (*l == ' ' || *l == '\0'))
-		return (1);
-	    else
-		continue;
-	}
-	else {
-	    while (*l && *l != ' ')
-		l++;		/* skip to blank */
-	    while (*l && *l == ' ')
-		l++;		/* and find first nonblank character */
-	    n = name;
-	}
-    }
-    return (0);
-}
-
-#endif /* BSDJOBS */
-
-
-/*
- * Implement a small cache for tilde names. This is used primarily
- * to expand tilde names to directories, but also
- * we can find users from their home directories for the tilde
- * prompt, on machines where yp lookup is slow this can be a big win...
- * As with any cache this can run out of sync, rehash can sync it again.
- */
-static struct tildecache {
-    Char   *user;
-    Char   *home;
-    size_t  hlen;
-}      *tcache = NULL;
-
-#define TILINCR 10
-size_t tlength = 0;
-static size_t tsize = TILINCR;
-
-static int
-tildecompare(const void *xp1, const void *xp2)
-{
-    const struct tildecache *p1, *p2;
-
-    p1 = xp1;
-    p2 = xp2;
-    return Strcmp(p1->user, p2->user);
-}
-
-static Char *
-gethomedir(const Char *us)
-{
-    struct passwd *pp;
-#ifdef HESIOD
-    char **res, **res1, *cp;
-    Char *rp;
-#endif /* HESIOD */
-    
-    pp = xgetpwnam(short2str(us));
-#ifdef YPBUGS
-    fix_yp_bugs();
-#endif /* YPBUGS */
-    if (pp != NULL) {
-#if 0
-	/* Don't return if root */
-	if (pp->pw_dir[0] == '/' && pp->pw_dir[1] == '\0')
-	    return NULL;
-	else
-#endif
-	    return Strsave(str2short(pp->pw_dir));
-    }
-#ifdef HESIOD
-    res = hes_resolve(short2str(us), "filsys");
-    rp = NULL;
-    if (res != NULL) {
-	if ((*res) != NULL) {
-	    /*
-	     * Look at the first token to determine how to interpret
-	     * the rest of it.
-	     * Yes, strtok is evil (it's not thread-safe), but it's also
-	     * easy to use.
-	     */
-	    cp = strtok(*res, " ");
-	    if (strcmp(cp, "AFS") == 0) {
-		/* next token is AFS pathname.. */
-		cp = strtok(NULL, " ");
-		if (cp != NULL)
-		    rp = Strsave(str2short(cp));
-	    } else if (strcmp(cp, "NFS") == 0) {
-		cp = NULL;
-		if ((strtok(NULL, " ")) && /* skip remote pathname */
-		    (strtok(NULL, " ")) && /* skip host */
-		    (strtok(NULL, " ")) && /* skip mode */
-		    (cp = strtok(NULL, " "))) {
-		    rp = Strsave(str2short(cp));
-		}
-	    }
-	}
-	for (res1 = res; *res1; res1++)
-	    free(*res1);
-#if 0
-	/* Don't return if root */
-	if (rp != NULL && rp[0] == '/' && rp[1] == '\0') {
-	    xfree(rp);
-	    rp = NULL;
-	}
-#endif
-	return rp;
-    }
-#endif /* HESIOD */
-    return NULL;
-}
-
-Char   *
-gettilde(const Char *us)
-{
-    struct tildecache *bp1, *bp2, *bp;
-    Char *hd;
-
-    /* Ignore NIS special names */
-    if (*us == '+' || *us == '-')
-	return NULL;
-
-    if (tcache == NULL)
-	tcache = xmalloc(TILINCR * sizeof(struct tildecache));
-    /*
-     * Binary search
-     */
-    for (bp1 = tcache, bp2 = tcache + tlength; bp1 < bp2;) {
-	int i;
-
-	bp = bp1 + ((bp2 - bp1) >> 1);
-	if ((i = *us - *bp->user) == 0 && (i = Strcmp(us, bp->user)) == 0)
-	    return (bp->home);
-	if (i < 0)
-	    bp2 = bp;
-	else
-	    bp1 = bp + 1;
-    }
-    /*
-     * Not in the cache, try to get it from the passwd file
-     */
-    hd = gethomedir(us);
-    if (hd == NULL)
-	return NULL;
-
-    /*
-     * Update the cache
-     */
-    tcache[tlength].user = Strsave(us);
-    tcache[tlength].home = hd;
-    tcache[tlength++].hlen = Strlen(hd);
-
-    qsort(tcache, tlength, sizeof(struct tildecache), tildecompare);
-
-    if (tlength == tsize) {
-	tsize += TILINCR;
-	tcache = xrealloc(tcache, tsize * sizeof(struct tildecache));
-    }
-    return (hd);
-}
-
-/*
- * Return the username if the directory path passed contains a
- * user's home directory in the tilde cache, otherwise return NULL
- * hm points to the place where the path became different.
- * Special case: Our own home directory.
- * If we are passed a null pointer, then we flush the cache.
- */
-Char   *
-getusername(Char **hm)
-{
-    Char   *h, *p;
-    size_t i, j;
-
-    if (hm == NULL) {
-	for (i = 0; i < tlength; i++) {
-	    xfree(tcache[i].home);
-	    xfree(tcache[i].user);
-	}
-	xfree(tcache);
-	tlength = 0;
-	tsize = TILINCR;
-	tcache = NULL;
-	return NULL;
-    }
-    p = *hm;
-    if (((h = varval(STRhome)) != STRNULL) &&
-	(Strncmp(p, h, j = Strlen(h)) == 0) &&
-	(p[j] == '/' || p[j] == '\0')) {
-	*hm = &p[j];
-	return STRNULL;
-    }
-    for (i = 0; i < tlength; i++)
-	if ((Strncmp(p, tcache[i].home, (j = tcache[i].hlen)) == 0) &&
-	    (p[j] == '/' || p[j] == '\0')) {
-	    *hm = &p[j];
-	    return tcache[i].user;
-	}
-    return NULL;
-}
-
-
-/*
- * set the shell-level var to 1 or apply change to it.
- */
-void
-shlvl(int val)
-{
-    char *cp;
-
-    if ((cp = getenv("SHLVL")) != NULL) {
-
-	if (loginsh)
-	    val = 1;
-	else
-	    val += atoi(cp);
-
-	if (val <= 0) {
-	    if (adrof(STRshlvl) != NULL)
-		unsetv(STRshlvl);
-	    Unsetenv(STRKSHLVL);
-	}
-	else {
-	    Char *p;
-
-	    p = Itoa(val, 0, 0);
-	    cleanup_push(p, xfree);
-	    setv(STRshlvl, p, VAR_READWRITE);
-	    cleanup_ignore(p);
-	    cleanup_until(p);
-	    tsetenv(STRKSHLVL, p);
-	}
-    }
-    else {
-	setcopy(STRshlvl, STR1, VAR_READWRITE);
-	tsetenv(STRKSHLVL, STR1);
-    }
-}
-
-
-/* fixio():
- *	Try to recover from a read error
- */
-int
-fixio(int fd, int e)
-{
-    switch (e) {
-    case -1:	/* Make sure that the code is reachable */
-
-#ifdef EWOULDBLOCK
-    case EWOULDBLOCK:
-# define FDRETRY
-#endif /* EWOULDBLOCK */
-
-#if defined(POSIX) && defined(EAGAIN)
-# if !defined(EWOULDBLOCK) || EWOULDBLOCK != EAGAIN
-    case EAGAIN:
-#  define FDRETRY
-# endif /* !EWOULDBLOCK || EWOULDBLOCK != EAGAIN */
-#endif /* POSIX && EAGAIN */
-
-	e = 0;
-#ifdef FDRETRY
-# ifdef F_SETFL
-/*
- * Great! we have on suns 3 flavors and 5 names...
- * I hope that will cover everything.
- * I added some more defines... many systems have different defines.
- * Rather than dealing with getting the right includes, we'll just
- * cover all the known possibilities here.  -- sterling@netcom.com
- */
-#  ifndef O_NONBLOCK
-#   define O_NONBLOCK 0
-#  endif /* O_NONBLOCK */
-#  ifndef O_NDELAY
-#   define O_NDELAY 0
-#  endif /* O_NDELAY */
-#  ifndef FNBIO
-#   define FNBIO 0
-#  endif /* FNBIO */
-#  ifndef _FNBIO
-#   define _FNBIO 0
-#  endif /* _FNBIO */
-#  ifndef FNONBIO
-#   define FNONBIO 0
-#  endif /* FNONBIO */
-#  ifndef FNONBLOCK
-#   define FNONBLOCK 0
-#  endif /* FNONBLOCK */
-#  ifndef _FNONBLOCK
-#   define _FNONBLOCK 0
-#  endif /* _FNONBLOCK */
-#  ifndef FNDELAY
-#   define FNDELAY 0
-#  endif /* FNDELAY */
-#  ifndef _FNDELAY
-#   define _FNDELAY 0
-#  endif /* _FNDELAY */
-#  ifndef FNDLEAY	/* Some linux versions have this typo */
-#   define FNDLEAY 0
-#  endif /* FNDLEAY */
-	if ((e = fcntl(fd, F_GETFL, 0)) == -1)
-	    return -1;
-
-	e &= ~(O_NDELAY|O_NONBLOCK|FNBIO|_FNBIO|FNONBIO|FNONBLOCK|_FNONBLOCK|
-	       FNDELAY|_FNDELAY|FNDLEAY);	/* whew! */
-	if (fcntl(fd, F_SETFL, e) == -1)
-	    return -1;
-	else 
-	    e = 1;
-# endif /* F_SETFL */
-
-# ifdef FIONBIO
-	e = 0;
-	if (ioctl(fd, FIONBIO, (ioctl_t) &e) == -1)
-	    return -1;
-	else
-	    e = 1;
-# endif	/* FIONBIO */
-
-#endif /* FDRETRY */
-	return e ? 0 : -1;
-
-    case EINTR:
-	return 0;
-
-    default:
-	return -1;
-    }
-}
-
-/* collate():
- *	String collation
- */
-int
-collate(const Char *a, const Char *b)
-{
-    int rv;
-#ifdef SHORT_STRINGS
-    /* This strips the quote bit as a side effect */
-    char *sa = strsave(short2str(a));
-    char *sb = strsave(short2str(b));
-#else
-    char *sa = strip(strsave(a));
-    char *sb = strip(strsave(b));
-#endif /* SHORT_STRINGS */
-
-#if defined(NLS) && defined(HAVE_STRCOLL)
-    errno = 0;	/* strcoll sets errno, another brain-damage */
-
-    rv = strcoll(sa, sb);
-
-    /*
-     * We should be checking for errno != 0, but some systems
-     * forget to reset errno to 0. So we only check for the 
-     * only documented valid errno value for strcoll [EINVAL]
-     */
-    if (errno == EINVAL) {
-	xfree(sa);
-	xfree(sb);
-	stderror(ERR_SYSTEM, "strcoll", strerror(errno));
-    }
-#else
-    rv = strcmp(sa, sb);
-#endif /* NLS && HAVE_STRCOLL */
-
-    xfree(sa);
-    xfree(sb);
-
-    return rv;
-}
-
-#ifdef HASHBANG
-/*
- * From: peter@zeus.dialix.oz.au (Peter Wemm)
- * If exec() fails look first for a #! [word] [word] ....
- * If it is, splice the header into the argument list and retry.
- */
-#define HACKBUFSZ 1024		/* Max chars in #! vector */
-int
-hashbang(int fd, Char ***vp)
-{
-    struct blk_buf sarg = BLK_BUF_INIT;
-    char lbuf[HACKBUFSZ], *p, *ws;
-#ifdef WINNT_NATIVE
-    int fw = 0; 	/* found at least one word */
-    int first_word = 1;
-    char *real;
-#endif /* WINNT_NATIVE */
-
-    if (xread(fd, lbuf, HACKBUFSZ) <= 0)
-	return -1;
-
-    ws = 0;	/* word started = 0 */
-
-    for (p = lbuf; p < &lbuf[HACKBUFSZ]; ) {
-	switch (*p) {
-	case ' ':
-	case '\t':
-#ifdef WINNT_NATIVE
-	case '\r':
-#endif /* WINNT_NATIVE */
-	    if (ws) {	/* a blank after a word.. save it */
-		*p = '\0';
-#ifdef WINNT_NATIVE
-		if (first_word) {
-		    real = hb_subst(ws);
-		    if (real != NULL)
-			ws = real;
-		}
-	    	fw = 1;
-		first_word = 0;
-#endif /* WINNT_NATIVE */
-		bb_append(&sarg, SAVE(ws));
-		ws = NULL;
-	    }
-	    p++;
-	    continue;
-
-	case '\0':	/* Whoa!! what the hell happened */
-	    goto err;
-
-	case '\n':	/* The end of the line. */
-	    if (
-#ifdef WINNT_NATIVE
-		fw ||
-#endif /* WINNT_NATIVE */
-		ws) {	/* terminate the last word */
-		*p = '\0';
-#ifdef WINNT_NATIVE
-		/* deal with the 1-word case */
-		if (first_word) {
-		    real = hb_subst(ws);
-		    if (real != NULL)
-			ws = real;
-		}
-#endif /* !WINNT_NATIVE */
-		if (ws)
-		    bb_append(&sarg, SAVE(ws));
-	    }
-	    if (sarg.len > 0) {
-		*vp = bb_finish(&sarg);
-		return 0;
-	    }
-	    else
-		goto err;
-
-	default:
-	    if (!ws)	/* Start a new word? */
-		ws = p; 
-	    p++;
-	    break;
-	}
-    }
- err:
-    bb_cleanup(&sarg);
-    return -1;
-}
-#endif /* HASHBANG */
-
-#ifdef REMOTEHOST
-
-static void
-palarm(int snum)
-{
-    USE(snum);
-    _exit(1);
-}
-
-static void
-getremotehost(int dest_fd)
-{
-    const char *host = NULL;
-#ifdef INET6
-    struct sockaddr_storage saddr;
-    static char hbuf[NI_MAXHOST];
-#else
-    struct hostent* hp;
-    struct sockaddr_in saddr;
-#endif
-    socklen_t len = sizeof(saddr);
-
-#ifdef INET6
-    if (getpeername(SHIN, (struct sockaddr *) &saddr, &len) != -1 &&
-	(saddr.ss_family == AF_INET6 || saddr.ss_family == AF_INET)) {
-	int flag = NI_NUMERICHOST;
-
-#ifdef NI_WITHSCOPEID
-	flag |= NI_WITHSCOPEID;
-#endif
-	getnameinfo((struct sockaddr *)&saddr, len, hbuf, sizeof(hbuf),
-		    NULL, 0, flag);
-	host = hbuf;
-#else
-    if (getpeername(SHIN, (struct sockaddr *) &saddr, &len) != -1 &&
-	saddr.sin_family == AF_INET) {
-#if 0
-	if ((hp = gethostbyaddr((char *)&saddr.sin_addr, sizeof(struct in_addr),
-				AF_INET)) != NULL)
-	    host = hp->h_name;
-	else
-#endif
-	    host = inet_ntoa(saddr.sin_addr);
-#endif
-    }
-#ifdef HAVE_STRUCT_UTMP_UT_HOST
-    else {
-	char *ptr;
-	char *name = utmphost();
-	/* Avoid empty names and local X displays */
-	if (name != NULL && *name != '\0' && *name != ':') {
-	    struct in_addr addr;
-	    char *sptr;
-
-	    /* Look for host:display.screen */
-	    /*
-	     * There is conflict with IPv6 address and X DISPLAY.  So,
-	     * we assume there is no IPv6 address in utmp and don't
-	     * touch here.
-	     */
-	    if ((sptr = strchr(name, ':')) != NULL)
-		*sptr = '\0';
-	    /* Leave IPv4 address as is */
-	    /*
-	     * we use inet_addr here, not inet_aton because many systems
-	     * have not caught up yet.
-	     */
-	    addr.s_addr = inet_addr(name);
-	    if (addr.s_addr != (unsigned int)~0)
-		host = name;
-	    else {
-		if (sptr != name) {
-#ifdef INET6
-		    char *s, *domain;
-		    char dbuf[MAXHOSTNAMELEN];
-		    struct addrinfo hints, *res = NULL;
-
-		    memset(&hints, 0, sizeof(hints));
-		    hints.ai_family = PF_UNSPEC;
-		    hints.ai_socktype = SOCK_STREAM;
-		    hints.ai_flags = AI_PASSIVE | AI_CANONNAME;
-		    if (strlen(name) < utmphostsize())
-		    {
-			if (getaddrinfo(name, NULL, &hints, &res) != 0)
-			    res = NULL;
-		    } else if (gethostname(dbuf, sizeof(dbuf)) == 0 &&
-			       (dbuf[sizeof(dbuf)-1] = '\0', /*FIXME: ugly*/
-				(domain = strchr(dbuf, '.')) != NULL)) {
-			for (s = strchr(name, '.');
-			     s != NULL; s = strchr(s + 1, '.')) {
-			    if (*(s + 1) != '\0' &&
-				(ptr = strstr(domain, s)) != NULL) {
-			        char *cbuf;
-
-				cbuf = strspl(name, ptr);
-				if (getaddrinfo(cbuf, NULL, &hints, &res) != 0)
-				    res = NULL;
-				xfree(cbuf);
-				break;
-			    }
-			}
-		    }
-		    if (res != NULL) {
-			if (res->ai_canonname != NULL) {
-			    strncpy(hbuf, res->ai_canonname, sizeof(hbuf));
-			    host = hbuf;
-			}
-			freeaddrinfo(res);
-		    }
-#else
-		    if ((hp = gethostbyname(name)) == NULL) {
-			/* Try again eliminating the trailing domain */
-			if ((ptr = strchr(name, '.')) != NULL) {
-			    *ptr = '\0';
-			    if ((hp = gethostbyname(name)) != NULL)
-				host = hp->h_name;
-			    *ptr = '.';
-			}
-		    }
-		    else
-			host = hp->h_name;
-#endif
-		}
-	    }
-	}
-    }
-#endif
-
-    if (host) {
-	size_t left;
-
-	left = strlen(host);
-	while (left != 0) {
-	    ssize_t res;
-
-	    res = xwrite(dest_fd, host, left);
-	    if (res < 0)
-		_exit(1);
-	    host += res;
-	    left -= res;
-	}
-    }
-    _exit(0);
-}
-
-/*
- * From: <lesv@ppvku.ericsson.se> (Lennart Svensson)
- */
-void
-remotehost(void)
-{
-    struct sigaction sa;
-    struct strbuf hostname = strbuf_INIT;
-    int fds[2], wait_options, status;
-    pid_t pid, wait_res;
-
-    sa.sa_handler = SIG_DFL; /* Make sure a zombie is created */
-    sigemptyset(&sa.sa_mask);
-    sa.sa_flags = 0;
-    sigaction(SIGCHLD, &sa, NULL);
-    mypipe(fds);
-    pid = fork();
-    if (pid == 0) {
-	sigset_t set;
-	xclose(fds[0]);
-	/* Don't get stuck if the resolver does not work! */
-	signal(SIGALRM, palarm);
-	sigemptyset(&set);
-	sigaddset(&set, SIGALRM);
-	(void)sigprocmask(SIG_UNBLOCK, &set, NULL);
-	(void)alarm(2);
-	getremotehost(fds[1]);
-	/*NOTREACHED*/
-    }
-    xclose(fds[1]);
-    for (;;) {
-	char buf[BUFSIZE];
-	ssize_t res;
-
-	res = xread(fds[0], buf, sizeof(buf));
-	if (res == -1) {
-	    hostname.len = 0;
-	    wait_options = WNOHANG;
-	    goto done;
-	}
-	if (res == 0)
-	    break;
-	strbuf_appendn(&hostname, buf, res);
-    }
-    wait_options = 0;
- done:
-    xclose(fds[0]);
-    while ((wait_res = waitpid(pid, &status, wait_options)) == -1
-	   && errno == EINTR)
-	handle_pending_signals();
-    cleanup_push(&hostname, strbuf_cleanup);
-    if (wait_res == pid && WIFEXITED(status) && WEXITSTATUS(status) == 0) {
-	strbuf_terminate(&hostname);
-	tsetenv(STRREMOTEHOST, str2short(hostname.s));
-    }
-    cleanup_until(&hostname);
-
-#ifdef YPBUGS
-    /* From: casper@fwi.uva.nl (Casper H.S. Dik), for Solaris 2.3 */
-    fix_yp_bugs();
-#endif /* YPBUGS */
-
-}
-#endif /* REMOTEHOST */
-
-#ifndef WINNT_NATIVE
-/*
- * indicate if a terminal type is defined in terminfo/termcap
- * (by default the current term type). This allows ppl to look
- * for a working term type automatically in their login scripts
- * when using a terminal known as different things on different
- * platforms
- */
-void
-dotermname(Char **v, struct command *c)
-{
-    char *termtype;
-    /*
-     * Maximum size of a termcap record. We make it twice as large.
-     */
-    char termcap_buffer[2048];
-
-    USE(c);
-    /* try to find which entry we should be looking for */
-    termtype = (v[1] == NULL ? getenv("TERM") : short2str(v[1]));
-    if (termtype == NULL) {
-	/* no luck - the user didn't provide one and none is 
-	 * specified in the environment
-	 */
-	setcopy(STRstatus, STR1, VAR_READWRITE);
-	return;
-    }
-
-    /*
-     * we use the termcap function - if we are using terminfo we 
-     * will end up with it's compatibility function
-     * terminfo/termcap will be initialized with the new
-     * type but we don't care because tcsh has cached all the things
-     * it needs.
-     */
-    if (tgetent(termcap_buffer, termtype) == 1) {
-	xprintf("%s\n", termtype);
-	setcopy(STRstatus, STR0, VAR_READWRITE);
-    } else
-	setcopy(STRstatus, STR1, VAR_READWRITE);
-}
-#endif /* WINNT_NATIVE */