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Added checks against NULL in gw_read_backend_event for dcb->session and dcb->session->client

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This commit is contained in:
Massimiliano Pinto
2013-09-04 10:57:08 +02:00
parent db164be946
commit 61df7eb07d
1 changed files with 10 additions and 1 deletions
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9
server/modules/protocol/mysql_backend.c
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@ -38,6 +38,8 @@
* 15/07/2013 Massimiliano Pinto Added Mysql session change via dcb->func.session() * 15/07/2013 Massimiliano Pinto Added Mysql session change via dcb->func.session()
* 17/07/2013 Massimiliano Pinto Added dcb->command update from gwbuf->command for proper routing * 17/07/2013 Massimiliano Pinto Added dcb->command update from gwbuf->command for proper routing
server replies to client via router->clientReply server replies to client via router->clientReply
* 04/09/2013 Massimiliano Pinto Added dcb->session and dcb->session->client checks for NULL
* in gw_read_backend_event()
*/ */
static char *version_str = "V2.0.0"; static char *version_str = "V2.0.0";
@ -148,7 +150,14 @@ static int gw_read_backend_event(DCB *dcb) {
if(dcb->session) { if(dcb->session) {
CHK_SESSION(dcb->session); CHK_SESSION(dcb->session);
if (dcb->session->client == NULL) {
dcb->state = DCB_STATE_DISCONNECTED;
return 1;
}
client_protocol = SESSION_PROTOCOL(dcb->session, MySQLProtocol); client_protocol = SESSION_PROTOCOL(dcb->session, MySQLProtocol);
} else {
dcb->state = DCB_STATE_DISCONNECTED;
return 1;
} }
backend_protocol = (MySQLProtocol *) dcb->protocol; backend_protocol = (MySQLProtocol *) dcb->protocol;