From 6a021031c07a3a7c42a51f89e82cb2971dabac75 Mon Sep 17 00:00:00 2001
From: moritz <>
Date: Mon, 2 May 2005 17:38:41 +0000
Subject: be more careful with snprintf. ok millert@

---
 src/lib/libc/net/gethostnamadr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'src/lib')

diff --git a/src/lib/libc/net/gethostnamadr.c b/src/lib/libc/net/gethostnamadr.c
index c643f2382a..f0be24143c 100644
--- a/src/lib/libc/net/gethostnamadr.c
+++ b/src/lib/libc/net/gethostnamadr.c
@@ -48,7 +48,7 @@
  */
 
 #if defined(LIBC_SCCS) && !defined(lint)
-static const char rcsid[] = "$OpenBSD: gethostnamadr.c,v 1.61 2005/03/30 02:58:28 tedu Exp $";
+static const char rcsid[] = "$OpenBSD: gethostnamadr.c,v 1.62 2005/05/02 17:38:41 moritz Exp $";
 #endif /* LIBC_SCCS and not lint */
 
 #include <sys/param.h>
@@ -702,7 +702,7 @@ gethostbyaddr(const char *addr, int len, int af)
 		for (n = IN6ADDRSZ - 1; n >= 0; n--) {
 			i = snprintf(qp, ep - qp, "%x.%x.",
 			    uaddr[n] & 0xf, (uaddr[n] >> 4) & 0xf);
-			if (i <= 0) {
+			if (i <= 0 || i >= ep - qp) {
 				errno = EINVAL;
 				h_errno = NETDB_INTERNAL;
 				return (NULL);
-- 
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