diff options
Diffstat (limited to 'winsup/cygwin/syscalls.cc')
| -rw-r--r-- | winsup/cygwin/syscalls.cc | 21 |
1 files changed, 10 insertions, 11 deletions
diff --git a/winsup/cygwin/syscalls.cc b/winsup/cygwin/syscalls.cc index 67dddf3d9..1d160d369 100644 --- a/winsup/cygwin/syscalls.cc +++ b/winsup/cygwin/syscalls.cc @@ -1668,17 +1668,20 @@ rename (const char *oldpath, const char *newpath) if (!*oldpath || !*newpath) { + /* Reject rename("","x"), rename("x",""). */ set_errno (ENOENT); goto out; } if (has_dot_last_component (oldpath, true)) { + /* Reject rename("dir/.","x"). */ oldpc.check (oldpath, PC_SYM_NOFOLLOW, stat_suffixes); set_errno (oldpc.isdir () ? EINVAL : ENOTDIR); goto out; } if (has_dot_last_component (newpath, true)) { + /* Reject rename("dir","x/."). */ newpc.check (newpath, PC_SYM_NOFOLLOW, stat_suffixes); set_errno (!newpc.exists () ? ENOENT : newpc.isdir () ? EINVAL : ENOTDIR); goto out; @@ -1724,6 +1727,7 @@ rename (const char *oldpath, const char *newpath) } if (old_dir_requested && !oldpc.isdir ()) { + /* Reject rename("file/","x"). */ set_errno (ENOTDIR); goto out; } @@ -1759,21 +1763,16 @@ rename (const char *oldpath, const char *newpath) set_errno (EROFS); goto out; } - if (new_dir_requested) + if (new_dir_requested && !(newpc.exists () + ? newpc.isdir () : oldpc.isdir ())) { - if (!newpc.exists()) - { - set_errno (ENOENT); - goto out; - } - if (!newpc.isdir ()) - { - set_errno (ENOTDIR); - goto out; - } + /* Reject rename("file1","file2/"), but allow rename("dir","d/"). */ + set_errno (newpc.exists () ? ENOTDIR : ENOENT); + goto out; } if (newpc.exists () && (oldpc.isdir () ? !newpc.isdir () : newpc.isdir ())) { + /* Reject rename("file","dir") and rename("dir","file"). */ set_errno (newpc.isdir () ? EISDIR : ENOTDIR); goto out; } |