[src/trunk]: src/lib/libwrap Allow passing NULL for check only.

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

details:   https://anonhg.NetBSD.org/src/rev/55e198d71eda
branches:  trunk
changeset: 472832:55e198d71eda
user:      christos <christos%NetBSD.org@localhost>
date:      Sun May 09 16:07:56 1999 +0000

description:
Allow passing NULL for check only.

diffstat:

 lib/libwrap/misc.c |  7 ++++---
 1 files changed, 4 insertions(+), 3 deletions(-)

diffs (27 lines):

diff -r fa40ff71815e -r 55e198d71eda lib/libwrap/misc.c
--- a/lib/libwrap/misc.c        Sun May 09 16:07:20 1999 +0000
+++ b/lib/libwrap/misc.c        Sun May 09 16:07:56 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: misc.c,v 1.3 1999/05/09 16:03:11 christos Exp $        */
+/*     $NetBSD: misc.c,v 1.4 1999/05/09 16:07:56 christos Exp $        */
 
  /*
   * Misc routines that are used by tcpd and by tcpdchk.
@@ -11,7 +11,7 @@
 #if 0
 static char sccsic[] = "@(#) misc.c 1.2 96/02/11 17:01:29";
 #else
-__RCSID("$NetBSD: misc.c,v 1.3 1999/05/09 16:03:11 christos Exp $");
+__RCSID("$NetBSD: misc.c,v 1.4 1999/05/09 16:07:56 christos Exp $");
 #endif
 #endif
 
@@ -78,6 +78,7 @@
 
     if (!inet_aton(str, &a))
        return -1;
-    *addr = a.s_addr;
+    if (addr)
+       *addr = a.s_addr;
     return 0;
 }