From: Timo Sirainen <tss@iki.fi>
Date: Sun, 25 May 2008 01:17:39 +0000 (+0300)
Subject: Avoid assert-crashing with broken transaction log files.
X-Git-Tag: 1.1.rc6~30
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a4d209d480d453566d331e870b8d0c99af7716c8;p=thirdparty%2Fdovecot%2Fcore.git

Avoid assert-crashing with broken transaction log files.

--HG--
branch : HEAD
---

diff --git a/src/lib-index/mail-transaction-log-view.c b/src/lib-index/mail-transaction-log-view.c
index 0d18afadb4..147b506dd5 100644
--- a/src/lib-index/mail-transaction-log-view.c
+++ b/src/lib-index/mail-transaction-log-view.c
@@ -149,6 +149,16 @@ int mail_transaction_log_view_set(struct mail_transaction_log_view *view,
 		return -1;
 	}
 
+	if (min_file_offset > 0 && min_file_offset < view->tail->hdr.hdr_size) {
+		/* log file offset is probably corrupted in the index file. */
+		mail_transaction_log_view_set_corrupted(view,
+			"file_seq=%u, min_file_offset (%"PRIuUOFF_T
+			") < hdr_size (%u)",
+			min_file_seq, min_file_offset,
+			view->tail->hdr.hdr_size);
+		return -1;
+	}
+
 	view->tail = view->head = file = NULL;
 	for (seq = min_file_seq; seq <= max_file_seq; seq++) {
 		if (file == NULL || file->hdr.file_seq != seq) {