BZ#16469: resolv: skip leading dot in domain to search

This should only happen if the domain to search is the root,
represented as "." rather than by an empty string.  Skipping it here
prevents libc_res_nquerydomain from duplicating the trailing dot,
which would cause the domain name compression to fail.

for  ChangeLog

	[BZ #16469]
	* resolv/res_query.c (__libc_res_nsearch): Skip leading dot in
	search domain names.

1 files changed, 6 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 650d118..76fda28 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,12 @@
 2014-11-21  Alexandre Oliva <aoliva@redhat.com>
 
 	[BZ #16469]
+	* resolv/res_query.c (__libc_res_nsearch): Skip leading dot in
+	search domain names.
+
+2014-11-21  Alexandre Oliva <aoliva@redhat.com>
+
+	[BZ #16469]
 	* NEWS: Update.
 	* resolv/res_query.c (__libc_res_nquerydomain): Retain
 	trailing dot.