[src/trunk]: src/usr.bin/systat bring in latter half of PR 9080 (host table a...

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

details:   https://anonhg.NetBSD.org/src/rev/d953a8244c52
branches:  trunk
changeset: 480121:d953a8244c52
user:      itojun <itojun%NetBSD.org@localhost>
date:      Tue Jan 04 15:12:42 2000 +0000

description:
bring in latter half of PR 9080 (host table allocation error check).

diffstat:

 usr.bin/systat/netcmds.c |  16 +++++++++-------
 1 files changed, 9 insertions(+), 7 deletions(-)

diffs (44 lines):

diff -r ba2704d5e244 -r d953a8244c52 usr.bin/systat/netcmds.c
--- a/usr.bin/systat/netcmds.c  Tue Jan 04 15:08:30 2000 +0000
+++ b/usr.bin/systat/netcmds.c  Tue Jan 04 15:12:42 2000 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: netcmds.c,v 1.11 1999/12/31 12:58:12 tron Exp $        */
+/*     $NetBSD: netcmds.c,v 1.12 2000/01/04 15:12:42 itojun Exp $      */
 
 /*-
  * Copyright (c) 1980, 1992, 1993
@@ -38,7 +38,7 @@
 #if 0
 static char sccsid[] = "@(#)netcmds.c  8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: netcmds.c,v 1.11 1999/12/31 12:58:12 tron Exp $");
+__RCSID("$NetBSD: netcmds.c,v 1.12 2000/01/04 15:12:42 itojun Exp $");
 #endif /* not lint */
 
 /*
@@ -69,7 +69,7 @@
 static struct hitem {
        struct  in_addr addr;
        int     onoff;
-} *hosts;
+} *hosts = NULL;
 
 int nports, nhosts, protos;
 
@@ -294,10 +294,12 @@
                        p->onoff = onoff;
                        return (0);
                }
-       if (nhosts == 0)
-               hosts = (struct hitem *)malloc(sizeof (*p));
-       else
-               hosts = (struct hitem *)realloc(hosts, (nhosts+1)*sizeof (*p));
+       p = (struct hitem *)realloc(hosts, (nhosts+1)*sizeof (*p));
+       if (p == NULL) {
+               error("malloc failed");
+               die(0);
+       }
+       hosts = p;
        p = &hosts[nhosts++];
        p->addr = *in;
        p->onoff = onoff;