about summary refs log tree commit diff
path: root/resolv/res_debug.c
diff options
context:
space:
mode:
authorFlorian Weimer <fweimer@redhat.com>2017-07-03 21:06:23 +0200
committerFlorian Weimer <fweimer@redhat.com>2017-07-03 21:06:23 +0200
commitaef16cc8a4c670036d45590877d411a97f01e0cd (patch)
tree4403f1962170ce92087a6e1af62dbb92e15d27f6 /resolv/res_debug.c
parenta1c4eb8794e789b5055d7ceb13b2b3231abf5e26 (diff)
downloadglibc-aef16cc8a4c670036d45590877d411a97f01e0cd.tar.gz
glibc-aef16cc8a4c670036d45590877d411a97f01e0cd.tar.xz
glibc-aef16cc8a4c670036d45590877d411a97f01e0cd.zip
resolv: Automatically reload a changed /etc/resolv.conf file [BZ #984]
This commit enhances the stub resolver to reload the configuration
in the per-thread _res object if the /etc/resolv.conf file has
changed.  The resolver checks whether the application has modified
_res and will not overwrite the _res object in that case.

The struct resolv_context mechanism is used to check the
configuration file only once per name lookup.
Diffstat (limited to 'resolv/res_debug.c')
-rw-r--r--resolv/res_debug.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/resolv/res_debug.c b/resolv/res_debug.c
index 55d1fe9f89..919b86e2b3 100644
--- a/resolv/res_debug.c
+++ b/resolv/res_debug.c
@@ -613,6 +613,7 @@ p_option(u_long option) {
 	case RES_SNGLKUPREOP:	return "single-request-reopen";
 	case RES_USE_DNSSEC:	return "dnssec";
 	case RES_NOTLDQUERY:	return "no-tld-query";
+	case RES_NORELOAD:	return "no-reload";
 				/* XXX nonreentrant */
 	default:		sprintf(nbuf, "?0x%lx?", (u_long)option);
 				return (nbuf);