SCRUM

embedded&client library
some fixes: zero at the end of the data added
mysql_list_fields became 'virtual'

include/mysql.h

@@ -414,8 +414,6 @@ const char *		STDCALL mysql_get_host_info(MYSQL *mysql);
 unsigned int	STDCALL mysql_get_proto_info(MYSQL *mysql);
 MYSQL_RES *	STDCALL mysql_list_dbs(MYSQL *mysql,const char *wild);
 MYSQL_RES *	STDCALL mysql_list_tables(MYSQL *mysql,const char *wild);
-MYSQL_RES *	STDCALL mysql_list_fields(MYSQL *mysql, const char *table,
-					 const char *wild);
 MYSQL_RES *	STDCALL mysql_list_processes(MYSQL *mysql);
 int		STDCALL mysql_options(MYSQL *mysql,enum mysql_option option,
 				      const char *arg);
@@ -540,6 +538,7 @@ typedef struct st_mysql_stmt
 #define mysql_read_query_result(mysql) (*(mysql)->methods->read_query_result)(mysql)
 #define mysql_store_result(mysql) (*(mysql)->methods->store_result)(mysql)
 #define mysql_use_result(mysql) (*(mysql)->methods->use_result)(mysql)
+#define mysql_list_fields(mysql, table, wild) (*(mysql)->methods->list_fields)(mysql, table, wild)
 
 typedef struct st_mysql_methods
 {
@@ -549,10 +548,14 @@ typedef struct st_mysql_methods
 				      const char *header,
 				      unsigned long header_length,
 				      const char *arg,
-				      unsigned long arg_length, my_bool skip_check);
+				      unsigned long arg_length,
+				      my_bool skip_check);
   MYSQL_RES * (STDCALL *store_result)(MYSQL *mysql);
   MYSQL_RES * (STDCALL *use_result)(MYSQL *mysql);
-  void (STDCALL *fetch_lengths)(unsigned long *to, MYSQL_ROW column, uint field_count);
+  void (STDCALL *fetch_lengths)(unsigned long *to, 
+				MYSQL_ROW column, uint field_count);
+  MYSQL_RES * (STDCALL *list_fields)(MYSQL *mysql, const char *table,
+				       const char *wild);
 } MYSQL_METHODS;
 
 MYSQL_STMT * STDCALL mysql_prepare(MYSQL * mysql, const char *query,

libmysql/client_settings.h

@@ -41,3 +41,5 @@ my_bool send_file_to_server(MYSQL *mysql, const char *filename);
 #define reset_sigpipe(mysql)
 #endif
 
+MYSQL_RES * STDCALL cli_list_fields(MYSQL *mysql, const char *table, const char *wild);
+

libmysql/libmysql.c

@@ -974,7 +974,7 @@ mysql_list_tables(MYSQL *mysql, const char *wild)
 **************************************************************************/
 
 MYSQL_RES * STDCALL
-mysql_list_fields(MYSQL *mysql, const char *table, const char *wild)
+cli_list_fields(MYSQL *mysql, const char *table, const char *wild)
 {
   MYSQL_RES *result;
   MYSQL_DATA *query;

libmysqld/lib_sql.cc

@@ -487,11 +487,12 @@ bool Protocol_simple::store_null()
 bool Protocol::net_store_data(const char *from, uint length)
 {
   char *field_buf;
-  if (!(field_buf=alloc_root(alloc, length + sizeof(uint))))
+  if (!(field_buf=alloc_root(alloc, length + sizeof(uint) + 1)))
     return true;
   *(uint *)field_buf= length;
   *next_field= field_buf + sizeof(uint);
   memcpy(*next_field, from, length);
+  (*next_field)[length]= 0;
   if (next_mysql_field->max_length < length)
     next_mysql_field->max_length=length;
   ++next_field;

libmysqld/libmysqld.c

@@ -179,6 +179,39 @@ static void STDCALL emb_fetch_lengths(ulong *to, MYSQL_ROW column, uint field_co
     *to= *column ? *(uint *)((*column) - sizeof(uint)) : 0;
 }
 
+/**************************************************************************
+  List all fields in a table
+  If wild is given then only the fields matching wild is returned
+  Instead of this use query:
+  show fields in 'table' like "wild"
+**************************************************************************/
+
+static MYSQL_RES * STDCALL
+emb_list_fields(MYSQL *mysql, const char *table, const char *wild)
+{
+  MYSQL_RES *result;
+  MYSQL_DATA *query;
+  char	     buff[257],*end;
+  DBUG_ENTER("mysql_list_fields");
+  DBUG_PRINT("enter",("table: '%s'  wild: '%s'",table,wild ? wild : ""));
+
+  LINT_INIT(query);
+
+  end=strmake(strmake(buff, table,128)+1,wild ? wild : "",128);
+  if (simple_command(mysql,COM_FIELD_LIST,buff,(ulong) (end-buff),1))
+    DBUG_RETURN(NULL);
+
+  result= mysql->result;
+  if (!result)
+    return 0;
+  
+  result->methods= mysql->methods;
+  result->eof=1;
+
+  DBUG_RETURN(result);
+}
+
+
 
 /*
 ** Note that the mysql argument must be initialized with mysql_init()
@@ -195,7 +228,8 @@ static MYSQL_METHODS embedded_methods=
   emb_advanced_command,
   emb_mysql_store_result,
   emb_mysql_use_result,
-  emb_fetch_lengths
+  emb_fetch_lengths,
+  emb_list_fields
 };
 
 MYSQL * STDCALL

sql-common/client.c

@@ -1406,7 +1406,8 @@ static MYSQL_METHODS client_methods=
   cli_advanced_command,
   cli_mysql_store_result,
   cli_mysql_use_result,
-  cli_fetch_lengths
+  cli_fetch_lengths,
+  cli_list_fields
 };
 
 MYSQL * STDCALL 
@@ -1432,6 +1433,7 @@ CLI_MYSQL_REAL_CONNECT(MYSQL *mysql,const char *host, const char *user,
 #ifdef HAVE_SYS_UN_H
   struct	sockaddr_un UNIXaddr;
 #endif
+
   init_sigpipe_variables
   DBUG_ENTER("mysql_real_connect");
   LINT_INIT(host_info);

sql/client_settings.h

@@ -32,3 +32,5 @@
 #undef HAVE_SMEM
 #undef _CUSTOMCONFIG_
 
+#define cli_list_fields NULL
+