Added support for max_allowed_packet in option files read by mysql_option()

Extended max_allowed_packet for clients to 1G
Fixed bug in sending compressed rows >= 16M
Fix bug in skiping too long packets from clients.
Added checking of wrong command number sent by client.


include/mysql.h:
  Added max_allowed_packet as option parameter.
include/mysql_com.h:
  Added COM_END to be able to check for wrong commands.
libmysql/libmysql.c:
  Extended max_allowed_packet for clients to 1G
  Added support for max_allowed_packet in option files read by mysql_option()
mysys/my_compress.c:
  Debugging output
sql/net_pkg.cc:
  Fixed wrong handling of blobs >= 16M
sql/net_serv.cc:
  Changed MAX_THREE_BYTES -> MAX_PACKET_LENGTH
  More DEBUG output and more comments
  Fixed bug in sending compressed rows >= 16M
  Optimized sending of big packets (fewer memcpy and compress data in bigger blocks)
  Fix bug in skiping too long packets from clients.
  (old code didn't always work for big packets)
sql/sql_class.h:
  Changed type of variable
sql/sql_parse.cc:
  Added checking of wrong command number sent by client.
  Changed handling of too big packets to make code safer
tests/big_record.pl:
  E

1 files changed, 10 insertions, 4 deletions

diff --git a/libmysql/libmysql.c b/libmysql/libmysql.c
index 49c110c738d..152177c0fbe 100644
--- a/libmysql/libmysql.c
+++ b/libmysql/libmysql.c
@@ -60,7 +60,7 @@ static my_bool	mysql_client_init=0;
 uint		mysql_port=0;
 my_string	mysql_unix_port=0;
 ulong 		net_buffer_length=8192;
-ulong		max_allowed_packet=16*1024*1024L;
+ulong		max_allowed_packet= 1024L*1024L*1024L;
 ulong		net_read_timeout=  NET_READ_TIMEOUT;
 ulong		net_write_timeout= NET_WRITE_TIMEOUT;
 
@@ -713,8 +713,8 @@ static const char *default_options[]=
   "character-sets-dir", "default-character-set", "interactive-timeout",
   "connect-timeout", "local-infile", "disable-local-infile",
   "replication-probe", "enable-reads-from-master", "repl-parse-query",
-  "ssl-cipher",
- NullS
+  "ssl-cipher", "max-allowed-packet",
+  NullS
 };
 
 static TYPELIB option_types={array_elements(default_options)-1,
@@ -868,6 +868,9 @@ static void mysql_read_default_options(struct st_mysql_options *options,
 	case 25: /* repl-parse-query */
 	  options->rpl_parse= 1;
 	  break;
+	case 27:
+	  options->max_allowed_packet= atoi(opt_arg);
+	  break;
 	default:
 	  DBUG_PRINT("warning",("unknown option: %s",option[0]));
 	}
@@ -1908,6 +1911,7 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
 		     mysql->server_version,mysql->server_capabilities,
 		     mysql->server_status, client_flag));
 
+  /* This needs to be changed as it's not useful with big packets */
   int3store(buff+2,max_allowed_packet);
   if (user && user[0])
     strmake(buff+5,user,32);			/* Max user name */
@@ -1935,6 +1939,8 @@ mysql_real_connect(MYSQL *mysql,const char *host, const char *user,
     goto error;
   if (client_flag & CLIENT_COMPRESS)		/* We will use compression */
     net->compress=1;
+  if (mysql->options.max_allowed_packet)
+    net->max_packet_size= mysql->options.max_allowed_packet;
   if (db && mysql_select_db(mysql,db))
     goto error;
   if (mysql->options.init_command)
@@ -2302,7 +2308,7 @@ mysql_real_query(MYSQL *mysql, const char *query, ulong length)
 {
   DBUG_ENTER("mysql_real_query");
   DBUG_PRINT("enter",("handle: %lx",mysql));
-  DBUG_PRINT("query",("Query = \"%s\"",query));
+  DBUG_PRINT("query",("Query = '%-.4096s'",query));
 
   if (mysql_send_query(mysql,query,length))
     DBUG_RETURN(-1);