# HG changeset patch
# User Timo Sirainen <tss@iki.fi>
# Date 1221296176 -10800
# Node ID b3fb8215a3396f7c7a1533cd2eaa6a665801113e
# Parent  32aa972895cc233bcef283ab423efe1a0cf08c6f
Sort indexes: Don't assert-crash with broken sort IDs.

diff -r 32aa972895cc -r b3fb8215a339 src/lib-storage/index/index-sort-string.c
--- a/src/lib-storage/index/index-sort-string.c	Thu Sep 11 23:16:27 2008 +0300
+++ b/src/lib-storage/index/index-sort-string.c	Sat Sep 13 11:56:16 2008 +0300
@@ -607,7 +607,11 @@
 			   messages */
 			skip = (right_sort_id - left_sort_id) /
 				(right_idx - i + 2);
-			i_assert(skip > 0);
+			if (skip == 0) {
+				/* broken sort IDs (we previously assigned
+				   left_sort_id=right_sort_id) */
+				return -1;
+			}
 			left_sort_id += skip;
 			i_assert(left_sort_id < right_sort_id);