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authorNirbhay Choubey <nirbhay@mariadb.com>2014-12-22 20:09:25 -0500
committerNirbhay Choubey <nirbhay@mariadb.com>2014-12-22 20:09:25 -0500
commiteda3db826f741b6cb62bb6903bd6b55a6aca4c3a (patch)
tree6af5f833c5ff996e73796708525e2d8dcfc8b859 /sql/log_event.cc
parentcb47155c68f38c6931fd539a8615373199b4ee64 (diff)
parent0f64a927a93239f7f0f5e413b893f7fc1233de15 (diff)
downloadmariadb-git-eda3db826f741b6cb62bb6903bd6b55a6aca4c3a.tar.gz
Merge revisions from maria/5.5 (5.5.41)
bzr merge -r4393 lp:maria/5.5
Diffstat (limited to 'sql/log_event.cc')
-rw-r--r--sql/log_event.cc17
1 files changed, 13 insertions, 4 deletions
diff --git a/sql/log_event.cc b/sql/log_event.cc
index e6fdb6943af..658c93bbc26 100644
--- a/sql/log_event.cc
+++ b/sql/log_event.cc
@@ -1586,7 +1586,7 @@ Log_event* Log_event::read_log_event(const char* buf, uint event_len,
ev = new Execute_load_log_event(buf, event_len, description_event);
break;
case START_EVENT_V3: /* this is sent only by MySQL <=4.x */
- ev = new Start_log_event_v3(buf, description_event);
+ ev = new Start_log_event_v3(buf, event_len, description_event);
break;
case STOP_EVENT:
ev = new Stop_log_event(buf, description_event);
@@ -4163,11 +4163,17 @@ void Start_log_event_v3::print(FILE* file, PRINT_EVENT_INFO* print_event_info)
Start_log_event_v3::Start_log_event_v3()
*/
-Start_log_event_v3::Start_log_event_v3(const char* buf,
+Start_log_event_v3::Start_log_event_v3(const char* buf, uint event_len,
const Format_description_log_event
*description_event)
- :Log_event(buf, description_event)
+ :Log_event(buf, description_event), binlog_version(BINLOG_VERSION)
{
+ if (event_len < (uint)description_event->common_header_len +
+ ST_COMMON_HEADER_LEN_OFFSET)
+ {
+ server_version[0]= 0;
+ return;
+ }
buf+= description_event->common_header_len;
binlog_version= uint2korr(buf+ST_BINLOG_VER_OFFSET);
memcpy(server_version, buf+ST_SERVER_VER_OFFSET,
@@ -4467,9 +4473,12 @@ Format_description_log_event(const char* buf,
const
Format_description_log_event*
description_event)
- :Start_log_event_v3(buf, description_event), event_type_permutation(0)
+ :Start_log_event_v3(buf, event_len, description_event),
+ common_header_len(0), post_header_len(NULL), event_type_permutation(0)
{
DBUG_ENTER("Format_description_log_event::Format_description_log_event(char*,...)");
+ if (!Start_log_event_v3::is_valid())
+ DBUG_VOID_RETURN; /* sanity check */
buf+= LOG_EVENT_MINIMAL_HEADER_LEN;
if ((common_header_len=buf[ST_COMMON_HEADER_LEN_OFFSET]) < OLD_HEADER_LEN)
DBUG_VOID_RETURN; /* sanity check */