myadm

commit 3afa246eb5346087b06b400e04014541f0c28526
parent d237edbb05fb09afee7584402e7b8ba468b447d7
Author: Claudio Alessi <smoppy@gmail.com>
Date:   Sat, 14 May 2016 16:55:50 +0200

Prevent having garbage if errors.

Diffstat:
M
myadm.c
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/myadm.c b/myadm.c
@@ -434,8 +434,10 @@ mksql_alter_table(char *sql, char *tbl) {
 	int size = MAXQUERYLEN+1, len = 0, r;
 
 	r = mysql_exec("describe `%s`", tbl);
-	if(r == -1 || !(res = mysql_store_result(mysql)))
+	if(r == -1 || !(res = mysql_store_result(mysql))) {
+		*sql = '\0';
 		return;
+	}
 	mysql_items(res, &items);
 	mysql_free_result(res);
 	for(item = items; item; item = item->next) {