[src/trunk]: src/usr.bin/who Handle ctime() failure.

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

details:   https://anonhg.NetBSD.org/src/rev/7ea311280d7a
branches:  trunk
changeset: 796534:7ea311280d7a
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Sun Jun 08 09:53:43 2014 +0000

description:
Handle ctime() failure.

diffstat:

 usr.bin/who/who.c |  8 +++++---
 1 files changed, 5 insertions(+), 3 deletions(-)

diffs (36 lines):

diff -r 79767cfb14b8 -r 7ea311280d7a usr.bin/who/who.c
--- a/usr.bin/who/who.c Sun Jun 08 07:01:30 2014 +0000
+++ b/usr.bin/who/who.c Sun Jun 08 09:53:43 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: who.c,v 1.23 2008/07/24 15:35:41 christos Exp $        */
+/*     $NetBSD: who.c,v 1.24 2014/06/08 09:53:43 mlelstv Exp $ */
 
 /*
  * Copyright (c) 1989, 1993
@@ -42,7 +42,7 @@
 #if 0
 static char sccsid[] = "@(#)who.c      8.1 (Berkeley) 6/6/93";
 #endif
-__RCSID("$NetBSD: who.c,v 1.23 2008/07/24 15:35:41 christos Exp $");
+__RCSID("$NetBSD: who.c,v 1.24 2014/06/08 09:53:43 mlelstv Exp $");
 #endif /* not lint */
 
 #include <sys/types.h>
@@ -285,6 +285,7 @@
        time_t idle;
        const char *types = NULL;
        size_t i;
+       char *tstr;
 
        state = '?';
        idle = 0;
@@ -312,7 +313,8 @@
                (void)printf("%c ", state);
 
        (void)printf("%-*.*s ", maxline, maxline, line);
-       (void)printf("%.12s ", ctime(&t) + 4);
+       tstr = ctime(&t);
+       (void)printf("%.12s ", tstr ? tstr + 4 : "?");
 
        if (show_idle) {
                if (idle < 60)