author: Andreas Gruenbacher <agruenba@redhat.com> 2015-12-02 14:44:43 +0100
committer: Al Viro <viro@zeniv.linux.org.uk> 2015-12-13 19:46:12 -0500
commit: 764a5c6b1fa4306dd7573c1d80914254909cd036
parent: 1046cb119521b5e1881f380dc99729fc84c96661
Commit Summary:
Diffstat:
1 file changed, 11 insertions, 9 deletions
diff --git a/fs/xattr.c b/fs/xattr.c
index 2c7776403aba..d7f5037a17b5 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -723,23 +723,25 @@ generic_listxattr(struct dentry *dentry, char *buffer, size_t buffer_size)
if (!buffer) {
for_each_xattr_handler(handlers, handler) {
- if (!handler->list)
+ if (!handler->name ||
+ (handler->list && !handler->list(dentry)))
continue;
- size += handler->list(handler, dentry, NULL, 0,
- NULL, 0);
+ size += strlen(handler->name) + 1;
}
} else {
char *buf = buffer;
+ size_t len;
for_each_xattr_handler(handlers, handler) {
- if (!handler->list)
+ if (!handler->name ||
+ (handler->list && !handler->list(dentry)))
continue;
- size = handler->list(handler, dentry, buf, buffer_size,
- NULL, 0);
- if (size > buffer_size)
+ len = strlen(handler->name);
+ if (len + 1 > buffer_size)
return -ERANGE;
- buf += size;
- buffer_size -= size;
+ memcpy(buf, handler->name, len + 1);
+ buf += len + 1;
+ buffer_size -= len + 1;
}
size = buf - buffer;
}