summaryrefslogtreecommitdiff
path: root/sql/sql_acl.cc
diff options
context:
space:
mode:
Diffstat (limited to 'sql/sql_acl.cc')
-rw-r--r--sql/sql_acl.cc18
1 files changed, 13 insertions, 5 deletions
diff --git a/sql/sql_acl.cc b/sql/sql_acl.cc
index 44fd5e9e94f..f60897bf62b 100644
--- a/sql/sql_acl.cc
+++ b/sql/sql_acl.cc
@@ -542,22 +542,30 @@ static ulong get_sort(uint count,...)
va_start(args,count);
ulong sort=0;
+ /* Should not use this function with more than 4 arguments for compare. */
+ DBUG_ASSERT(count <= 4);
+
while (count--)
{
- char *str=va_arg(args,char*);
- uint chars=0,wild=0;
+ char *start, *str= va_arg(args,char*);
+ uint chars= 0;
+ uint wild_pos= 0; /* first wildcard position */
- if (str)
+ if (start= str)
{
for (; *str ; str++)
{
if (*str == wild_many || *str == wild_one || *str == wild_prefix)
- wild++;
+ {
+ wild_pos= str - start + 1;
+ break;
+ }
else
chars++;
}
}
- sort= (sort << 8) + (wild ? 1 : chars ? 2 : 0);
+ sort= (sort << 8) + (wild_pos ? (wild_pos > 127 ? 127 : wild_pos) :
+ (chars ? 128 : 0));
}
va_end(args);
return sort;