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Fixing some bugs in client - server protocol and adding a feature

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that connection does not close in the case when client sends a 
buffer larger then max_allowed_packet.
This commit is contained in:
Sinisa@sinisa.nasamreza.org
2003-01-02 16:21:22 +02:00
parent 5c0bd57b8f
commit 66208fe9ae
2 changed files with 24 additions and 3 deletions
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17
sql/net_serv.cc
View File

@ -469,6 +469,7 @@ static void my_net_skip_rest(NET *net, uint32 remain, thr_alarm_t *alarmed)
ALARM alarm_buff;
uint retry_count=0;
my_bool old_mode;
uint32 old=remain;
if (!thr_alarm_in_use(&alarmed))
{
@ -490,6 +491,12 @@ static void my_net_skip_rest(NET *net, uint32 remain, thr_alarm_t *alarmed)
return;
}
remain -= (uint32) length;
if (!remain && old==MAX_THREE_BYTES &&
(length=vio_read(net->vio,(char*) net->buff,NET_HEADER_SIZE)))
{
old=remain= uint3korr(net->buff);
net->pkt_nr++;
}
statistic_add(bytes_received,length,&LOCK_bytes_received);
}
}
@ -647,11 +654,19 @@ my_real_read(NET *net, ulong *complen)
{
if (net_realloc(net,helping))
{
#ifdef MYSQL_SERVER
#ifndef NO_ALARM
if (i == 1)
if (net->compress)
{
len= packet_error;
goto end;
}
my_net_skip_rest(net, (uint32) len, &alarmed);
len=0;
#endif
#else
len= packet_error; /* Return error */
#endif
goto end;
}
}

6
sql/sql_parse.cc
View File

@ -884,6 +884,12 @@ bool do_command(THD *thd)
vio_description(net->vio) ));
return TRUE;
}
else if (!packet_length)
{
send_error(net,net->last_errno,NullS);
net->error=0;
DBUG_RETURN(FALSE);
}
else
{
packet=(char*) net->read_pos;