[FREELDR] Fix bug in Btrfs filename lookups. (reactos#1951)

maharmstone · HBelusca · commit b3f45a25c574 · 2019-10-05T23:20:51.000+02:00
diff --git a/boot/freeldr/freeldr/lib/fs/btrfs.c b/boot/freeldr/freeldr/lib/fs/btrfs.c
@@ -619,7 +619,7 @@ static BOOLEAN BtrFsLookupDirItemI(const struct btrfs_root_item *root, u64 dir_h
         name_buf = (char *) item + sizeof(*item);
         TRACE("Compare names %.*s and %.*s\n", name_len, name, item->name_len, name_buf);
 
-        if (_strnicmp(name, name_buf, name_len) == 0)
+        if (name_len == item->name_len && _strnicmp(name, name_buf, name_len) == 0)
         {
             *ret_item = *item;
             result = TRUE;

Original file line number	Diff line number	Diff line change
`@@ -619,7 +619,7 @@ static BOOLEAN BtrFsLookupDirItemI(const struct btrfs_root_item *root, u64 dir_h`
`619`	`619`	`name_buf = (char ) item + sizeof(item);`
`620`	`620`	`TRACE("Compare names %.s and %.s\n", name_len, name, item->name_len, name_buf);`
`621`	`621`
`622`		`- if (_strnicmp(name, name_buf, name_len) == 0)`
	`622`	`+ if (name_len == item->name_len && _strnicmp(name, name_buf, name_len) == 0)`
`623`	`623`	`{`
`624`	`624`	`ret_item = item;`
`625`	`625`	`result = TRUE;`