[src/trunk]: src/lib/libc/gen check for write and close errors, from wiz

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

details:   https://anonhg.NetBSD.org/src/rev/5be9e4fcb6c6
branches:  trunk
changeset: 537201:5be9e4fcb6c6
user:      christos <christos%NetBSD.org@localhost>
date:      Sat Sep 28 01:34:36 2002 +0000

description:
check for write and close errors, from wiz

diffstat:

 lib/libc/gen/utmpx.c |  13 ++++++++-----
 1 files changed, 8 insertions(+), 5 deletions(-)

diffs (35 lines):

diff -r e5a92289e134 -r 5be9e4fcb6c6 lib/libc/gen/utmpx.c
--- a/lib/libc/gen/utmpx.c      Sat Sep 28 01:25:01 2002 +0000
+++ b/lib/libc/gen/utmpx.c      Sat Sep 28 01:34:36 2002 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: utmpx.c,v 1.11 2002/09/26 17:08:42 wiz Exp $    */
+/*     $NetBSD: utmpx.c,v 1.12 2002/09/28 01:34:36 christos Exp $       */
 
 /*-
  * Copyright (c) 2002 The NetBSD Foundation, Inc.
@@ -38,7 +38,7 @@
 #include <sys/cdefs.h>
 
 #if defined(LIBC_SCCS) && !defined(lint)
-__RCSID("$NetBSD: utmpx.c,v 1.11 2002/09/26 17:08:42 wiz Exp $");
+__RCSID("$NetBSD: utmpx.c,v 1.12 2002/09/28 01:34:36 christos Exp $");
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/types.h>
@@ -297,10 +297,13 @@
                (void)memset(&ut, 0, sizeof(ut));
                ut.ut_type = SIGNATURE;
                (void)memcpy(ut.ut_user, vers, sizeof(vers));
-               (void)write(fd, &ut, sizeof(ut));
+               if ((write(fd, &ut, sizeof(ut)) == -1)
+                       return -1;
        }
-       (void)write(fd, utx, sizeof(*utx));
-       (void)close(fd);
+       if (write(fd, utx, sizeof(*utx)) == -1)
+               return -1;
+       if (close(fd) == -1)
+               return -1;
        return 0;
 }