diff options
Diffstat (limited to 'fs/xattr.c')
| -rw-r--r-- | fs/xattr.c | 20 |
1 files 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; } |