Do not check server hostname when TLS_REQCERT is 'allow'.

If server certificate hostname does not match the server hostname,
connection is closed even if client has set TLS_REQCERT to 'allow'. This
is wrong - the documentation says, that bad certificates are being
ignored when TLS_REQCERT is set to 'allow'.

Author: Jan Vcelak <jvcelak@redhat.com>
Upstream ITS: #7014
Resolves: #725819

diff --git a/libraries/libldap/tls2.c b/libraries/libldap/tls2.c
index f38db27..3f05c1e 100644
--- a/libraries/libldap/tls2.c
+++ b/libraries/libldap/tls2.c
@@ -838,7 +838,8 @@ ldap_int_tls_start ( LDAP *ld, LDAPConn *conn, LDAPURLDesc *srv )
 	/* 
 	 * compare host with name(s) in certificate
 	 */
-	if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER) {
+	if (ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_NEVER &&
+	    ld->ld_options.ldo_tls_require_cert != LDAP_OPT_X_TLS_ALLOW) {
 		ld->ld_errno = ldap_pvt_tls_check_hostname( ld, ssl, host );
 		if (ld->ld_errno != LDAP_SUCCESS) {
 			return ld->ld_errno;
-- 
1.7.6