ref: 9293ce9f84d052c9de71b375ba9f93470cdff456
parent: cc2ee3402d4a4de0f7827397313f16f3c1b4fa3f
author: ngkaho1234 <ngkaho1234@gmail.com>
date: Tue Jan 26 01:15:35 EST 2016
ext4: ext4_chmod now only allows modifying the lowest 12bit of i_mode.
--- a/lwext4/ext4.c
+++ b/lwext4/ext4.c
@@ -1989,7 +1989,7 @@
int ext4_chmod(const char *path, uint32_t mode)
{int r;
- uint32_t ino;
+ uint32_t ino, orig_mode;
ext4_file f;
struct ext4_sblock *sb;
struct ext4_inode_ref inode_ref;
@@ -2017,7 +2017,10 @@
return r;
}
- ext4_inode_set_mode(sb, inode_ref.inode, mode);
+ orig_mode = ext4_inode_get_mode(sb, inode_ref.inode);
+ orig_mode &= ~0xFFF;
+ orig_mode |= mode & 0xFFF;
+ ext4_inode_set_mode(sb, inode_ref.inode, orig_mode);
inode_ref.dirty = true;
r = ext4_fs_put_inode_ref(&inode_ref);