autofs-5.0.4 - clear rpc client on lookup fail

From: Ian Kent <raven@themaw.net>

If a name lookup failure occurs in create_tcp_client() or create_udp_client()
the client is destoryed and the file descriptor is closed at exit but the rpc
client isn't set to NULL. This leads to a subsequent SEGV when attempting to
use the invalid client.
---

 CHANGELOG      |    1 +
 lib/rpc_subs.c |    2 ++
 2 files changed, 3 insertions(+), 0 deletions(-)


diff --git a/CHANGELOG b/CHANGELOG
index 00b455e..91edd14 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -34,6 +34,7 @@
 - fix file map lookup when reading included or nsswitch sources.
 - use misc device ioctl interface by default, if available.
 - fix call restorecon when misc device file doesn't exist.
+- clear rpc client on lookup fail.
 
 4/11/2008 autofs-5.0.4
 -----------------------
diff --git a/lib/rpc_subs.c b/lib/rpc_subs.c
index a822f1f..d034b29 100644
--- a/lib/rpc_subs.c
+++ b/lib/rpc_subs.c
@@ -346,6 +346,7 @@ static CLIENT *create_udp_client(struct conn_info *info)
 	if (ret) {
 		error(LOGOPT_ANY,
 		      "hostname lookup failed: %s", gai_strerror(ret));
+		info->client = NULL;
 		goto out_close;
 	}
 
@@ -470,6 +471,7 @@ static CLIENT *create_tcp_client(struct conn_info *info)
 	if (ret) {
 		error(LOGOPT_ANY,
 		      "hostname lookup failed: %s", gai_strerror(ret));
+		info->client = NULL;
 		goto out_close;
 	}