From: Timo Sirainen <tss@iki.fi>
Date: Thu, 29 Apr 2010 16:02:59 +0000 (+0300)
Subject: lib-index: Another fix attempt for handling atomic inc with INT_MAX.
X-Git-Tag: 2.0.beta5~54
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=41c4f318bf58ca0b7edb613d344ca208414eb1c9;p=thirdparty%2Fdovecot%2Fcore.git

lib-index: Another fix attempt for handling atomic inc with INT_MAX.

--HG--
branch : HEAD
---

diff --git a/src/lib-index/mail-index-sync-ext.c b/src/lib-index/mail-index-sync-ext.c
index ffaa0c76eb..6ce046e18a 100644
--- a/src/lib-index/mail-index-sync-ext.c
+++ b/src/lib-index/mail-index-sync-ext.c
@@ -752,7 +752,7 @@ mail_index_sync_ext_atomic_inc(struct mail_index_sync_map_ctx *ctx,
 			ext->record_size);
 		return -1;
 	}
-	if (u->diff < 0 && (uint64_t)(-u->diff) > orig_num) {
+	if (u->diff < 0 && (uint64_t)(-(int64_t)u->diff) > orig_num) {
 		mail_index_sync_set_corrupted(ctx,
 			"Extension record inc drops number below zero "
 			"(uid=%u, diff=%d, orig=%llu)",