From 18ad9f5070b6ca49d00638a62f32dda2ffc3b369 Mon Sep 17 00:00:00 2001
From: keramida <keramida@FreeBSD.org>
Date: Sat, 10 Jul 2010 11:40:31 +0000
Subject: [PATCH] Fix reading of empty fifolog files.  When we don't have
 anything to inflate, skip the rest of the fifolog reader code to avoid
 hitting the assert about Z_OK a bit further down.

Approved by:	phk
MFC after:	1 week
---
 usr.sbin/fifolog/lib/fifolog_reader.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/usr.sbin/fifolog/lib/fifolog_reader.c b/usr.sbin/fifolog/lib/fifolog_reader.c
index 6f18fbb90052..d7475ed7f799 100644
--- a/usr.sbin/fifolog/lib/fifolog_reader.c
+++ b/usr.sbin/fifolog/lib/fifolog_reader.c
@@ -304,8 +304,10 @@ fifolog_reader_process(struct fifolog_reader *fr, off_t from, fifolog_reader_ren
 			if (i == Z_STREAM_END) {
 				i = inflateReset(zs);
 			}
-			if (i != Z_OK)
+			if (i != Z_OK) {
 				fprintf(stderr, "inflate = %d\n", i);
+				exit (250);
+			}
 			assert(i == Z_OK);
 			if (zs->avail_out != fr->olen) {
 				q = fr->obuf + (fr->olen - zs->avail_out);