From ee1d999d6a9b35bbe9c1b3ba3d73d8c5a6346b8c Mon Sep 17 00:00:00 2001
From: Bob Halley <source@isc.org>
Date: Sat, 24 Jul 1999 03:02:57 +0000
Subject: [PATCH] add INSIST

---
 bin/named/client.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bin/named/client.c b/bin/named/client.c
index 628f31634f..97dd7f7743 100644
--- a/bin/named/client.c
+++ b/bin/named/client.c
@@ -190,6 +190,7 @@ client_senddone(isc_task_t *task, isc_event_t *event) {
 
 	CTRACE("senddone");
 
+	INSIST(client->nsends > 0);
 	client->nsends--;
 	isc_mempool_put(client->sendbufs, sevent->region.base);