From: Jim Jagielski <jim@apache.org>
Date: Mon, 6 Oct 2008 14:29:12 +0000 (+0000)
Subject: protect from mismanaged DNS which return blank/null
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6f2a30a06f9ddf2db6fc8aba476014020337aa8d;p=thirdparty%2Fapache%2Fhttpd.git

protect from mismanaged DNS which return blank/null
hostnames.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/1.3.x@702162 13f79535-47bb-0310-9956-ffa450edef68
---

diff --git a/src/support/logresolve.c b/src/support/logresolve.c
index 5c769a23f67..8671a49d033 100644
--- a/src/support/logresolve.c
+++ b/src/support/logresolve.c
@@ -165,7 +165,7 @@ static void cgethost (struct in_addr ipnum, char *string, int check)
 
 	hostdata = gethostbyaddr((const char *) &ipnum, sizeof(struct in_addr),
 				 AF_INET);
-	if (hostdata == NULL) {
+	if (hostdata == NULL || !hostdata->h_name || !*hostdata->h_name) {
 	    if (h_errno > MAX_ERR)
 		errors[UNKNOWN_ERR]++;
 	    else