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| author | Russell King <rmk+kernel@armlinux.org.uk> | 2019-03-24 17:00:35 +0300 |
|---|---|---|
| committer | Russell King <rmk+kernel@armlinux.org.uk> | 2019-05-31 12:31:07 +0300 |
| commit | fc722a0429f4e8a316e1992dcff6c78f45a25158 (patch) | |
| tree | ad140ce9f28637a4f9a448665eb46d6baf48be8b | |
| parent | 5f8de4875c3522addcde6e98f978e0414c16478d (diff) | |
| download | linux-fc722a0429f4e8a316e1992dcff6c78f45a25158.tar.xz | |
fs/adfs: fix filename fixup handling for "/" and "//" names
Avoid translating "/" and "//" directory entry names to the special
"." and ".." names by instead converting the first character to "^".
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
| -rw-r--r-- | fs/adfs/dir.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/fs/adfs/dir.c b/fs/adfs/dir.c index 51ed80ff10a5..fe39310c1a0a 100644 --- a/fs/adfs/dir.c +++ b/fs/adfs/dir.c @@ -18,18 +18,25 @@ static DEFINE_RWLOCK(adfs_dir_lock); void adfs_object_fixup(struct adfs_dir *dir, struct object_info *obj) { - unsigned int i; + unsigned int dots, i; /* * RISC OS allows the use of '/' in directory entry names, so we need * to fix these up. '/' is typically used for FAT compatibility to * represent '.', so do the same conversion here. In any case, '.' * will never be in a RISC OS name since it is used as the pathname - * separator. + * separator. Handle the case where we may generate a '.' or '..' + * name, replacing the first character with '^' (the RISC OS "parent + * directory" character.) */ - for (i = 0; i < obj->name_len; i++) - if (obj->name[i] == '/') + for (i = dots = 0; i < obj->name_len; i++) + if (obj->name[i] == '/') { obj->name[i] = '.'; + dots++; + } + + if (obj->name_len <= 2 && dots == obj->name_len) + obj->name[0] = '^'; obj->filetype = -1; |