[src/netbsd-1-4]: src/bin/csh pullup 1.17->1.20 (cgd): fix potential memory c...

[perry <perry%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/93d9af8ad785
branches:  netbsd-1-4
changeset: 468782:93d9af8ad785
user:      perry <perry%NetBSD.org@localhost>
date:      Mon Jun 21 14:36:39 1999 +0000

description:
pullup 1.17->1.20 (cgd): fix potential memory corruption with "kill" builtin

diffstat:

 bin/csh/proc.c |  19 ++++++++++---------
 1 files changed, 10 insertions(+), 9 deletions(-)

diffs (60 lines):

diff -r a8647c9d9d11 -r 93d9af8ad785 bin/csh/proc.c
--- a/bin/csh/proc.c    Mon Jun 21 14:34:16 1999 +0000
+++ b/bin/csh/proc.c    Mon Jun 21 14:36:39 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: proc.c,v 1.17 1999/03/19 12:58:00 christos Exp $       */
+/*     $NetBSD: proc.c,v 1.17.2.1 1999/06/21 14:36:39 perry Exp $      */
 
 /*-
  * Copyright (c) 1980, 1991, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)proc.c     8.1 (Berkeley) 5/31/93";
 #else
-__RCSID("$NetBSD: proc.c,v 1.17 1999/03/19 12:58:00 christos Exp $");
+__RCSID("$NetBSD: proc.c,v 1.17.2.1 1999/06/21 14:36:39 perry Exp $");
 #endif
 #endif /* not lint */
 
@@ -973,6 +973,7 @@
     struct command *t;
 {
     int signum = SIGTERM;
+    Char *signame;
     char *name;
 
     v++;
@@ -1005,15 +1006,15 @@
                stderror(ERR_NAME | ERR_BADSIG);
        }
        else {
-           if (v[0][1] == 's' && (Isspace(v[0][2]) || v[0][2] == '\0'))
-               v++;
+           if (v[0][1] == 's' && v[0][2] == '\0')
+               signame = *(++v);
            else
-               (*v)++;
+               signame = &v[0][1];
 
-           if (v[0] == NULL || v[1] == NULL)
+           if (signame == NULL || v[1] == NULL)
                stderror(ERR_NAME | ERR_TOOFEW);
 
-           name = short2str(&v[0][0]);
+           name = short2str(signame);
            for (signum = 1; signum < NSIG; signum++)
                if (!strcasecmp(sys_signame[signum], name) ||
                    (!strncasecmp("SIG", name, 3) &&    /* skip "SIG" prefix */
@@ -1021,10 +1022,10 @@
                    break;
 
            if (signum == NSIG) {
-               if (v[0][0] == '0')
+               if (signame[0] == '0')
                    signum = 0;
                else {
-                   setname(vis_str(&v[0][0]));
+                   setname(vis_str(signame));
                    stderror(ERR_NAME | ERR_UNKSIG);
                }
            }