[qarsh] Handle a very broken qarshd

If qarshd is broken enough that it can't load libxml2.so, it
won't return an XML packet which we can parse.  set_remote_user()
really needs to error out of we didn't get a packet back.

1 files changed, 5 insertions, 1 deletions

diff --git a/qarsh.c b/qarsh.c
index 9bfd295..a8bb7ab 100644
--- a/qarsh.c
+++ b/qarsh.c
@@ -160,7 +160,11 @@ set_remote_user(char *user, char *group)
 	send_packet(qarsh_fd, qp);
 	qpfree(qp);
 	qp = recv_packet(qarsh_fd);
-	if (qp && qp->qp_type == QP_RETURNCODE 
+	if (!qp) {
+		fprintf(stderr, "Failed to receive response to set user\n");
+		close(qarsh_fd);
+		exit(125);
+	} else if (qp->qp_type == QP_RETURNCODE 
 			&& qp->qp_returncode.qp_rc == -1) {
 		
 		fprintf(stderr, "Remote side failed, %s\n",