row0sel.c Fix a memory freeing bug when a row which contains an externally...

row0sel.c	Fix a memory freeing bug when a row which contains an externally stored long field in the middle of the row is fetched in a SELECT
srv0start.c	Allow drive name followed by a ':' in a data file path
ha_innobase.cc	Allow drive name followed by a ':' in a data file path


sql/ha_innobase.cc:
  Allow drive name followed by a ':' in a data file path
innobase/srv/srv0start.c:
  Allow drive name followed by a ':' in a data file path
innobase/row/row0sel.c:
  Fix a memory freeing bug when a row which contains an externally stored long field in the middle of the row is fetched in a SELECT

innobase/row/row0sel.c

@@ -2103,6 +2103,7 @@ row_sel_store_mysql_rec(
 
 			if (extern_field_heap) {
  				mem_heap_free(extern_field_heap);
+				extern_field_heap = NULL;
  			}
 		} else {
 			mysql_rec[templ->mysql_null_byte_offset] |=

innobase/srv/srv0start.c

@@ -141,21 +141,21 @@ srv_normalize_path_for_win(
 }
 	
 /*************************************************************************
-Adds a slash or a backslash to the end of a string if it is missing. */
+Adds a slash or a backslash to the end of a string if it is missing
+and the string is not empty. */
 static
 char*
 srv_add_path_separator_if_needed(
 /*=============================*/
-			/* out, own: string which has the separator */
+			/* out, own: string which has the separator if the
+			string is not empty */
 	char*	str)	/* in: null-terminated character string */
 {
 	char*	out_str;
 
 	if (ut_strlen(str) == 0) {
-		out_str = ut_malloc(2);
-		sprintf(out_str, "%s", SRV_PATH_SEPARATOR);
 
-		return(out_str);
+		return(str);
 	}
 
 	if (str[ut_strlen(str) - 1] == SRV_PATH_SEPARATOR[0]) {

sql/ha_innobase.cc

@@ -259,12 +259,15 @@ innobase_parse_data_file_paths_and_sizes(void)
 	str = innobase_data_file_path;
 
 	/* First calculate the number of data files and check syntax:
-	path:size[M];path:size[M]... */
+	path:size[M];path:size[M]... . Note that a Windows path may
+	contain a drive name and a ':'. */
 
 	while (*str != '\0') {
 		path = str;
 
-		while (*str != ':' && *str != '\0') {
+		while ((*str != ':' && *str != '\0')
+		       || (*str == ':'
+			   && (*(str + 1) == '\\' || *(str + 1) == '/'))) {
 			str++;
 		}
 
@@ -335,7 +338,11 @@ innobase_parse_data_file_paths_and_sizes(void)
 	while (*str != '\0') {
 		path = str;
 
-		while (*str != ':' && *str != '\0') {
+		/* Note that we must ignore the ':' in a Windows path */
+
+		while ((*str != ':' && *str != '\0')
+		       || (*str == ':'
+			   && (*(str + 1) == '\\' || *(str + 1) == '/'))) {
 			str++;
 		}