diff options
Diffstat (limited to 'winsup/cygwin/fhandler_disk_file.cc')
| -rw-r--r-- | winsup/cygwin/fhandler_disk_file.cc | 44 |
1 files changed, 43 insertions, 1 deletions
diff --git a/winsup/cygwin/fhandler_disk_file.cc b/winsup/cygwin/fhandler_disk_file.cc index 62c4605a2..587f32314 100644 --- a/winsup/cygwin/fhandler_disk_file.cc +++ b/winsup/cygwin/fhandler_disk_file.cc @@ -366,6 +366,48 @@ fhandler_disk_file::fstat (struct __stat64 *buf) return fstat_fs (buf); } +int __stdcall +fhandler_disk_file::fchmod (mode_t mode) +{ + extern int chmod_device (path_conv& pc, mode_t mode); + int res = -1; + int oret = 0; + + if (pc.is_fs_special ()) + return chmod_device (pc, mode); + + if (!get_io_handle () && !(oret = open_fs (O_RDONLY | O_BINARY, 0))) + return -1; + + SetFileAttributes (get_win32_name (), (DWORD) pc & ~FILE_ATTRIBUTE_READONLY); + if (pc.isdir ()) + mode |= S_IFDIR; + if (!set_file_attribute (pc.has_acls (), get_io_handle (), get_win32_name (), + ILLEGAL_UID, ILLEGAL_GID, mode) + && allow_ntsec) + res = 0; + + /* if the mode we want has any write bits set, we can't be read only. */ + if (mode & (S_IWUSR | S_IWGRP | S_IWOTH)) + (DWORD) pc &= ~FILE_ATTRIBUTE_READONLY; + else + (DWORD) pc |= FILE_ATTRIBUTE_READONLY; + + if (!pc.is_lnk_symlink () && S_ISLNK (mode) || S_ISSOCK (mode)) + (DWORD) pc |= FILE_ATTRIBUTE_SYSTEM; + + if (!SetFileAttributes (pc, pc)) + __seterrno (); + else if (!allow_ntsec) + /* Correct NTFS security attributes have higher priority */ + res = 0; + + if (oret) + close_fs (); + + return res; +} + fhandler_disk_file::fhandler_disk_file () : fhandler_base () { @@ -411,7 +453,7 @@ fhandler_base::open_fs (int flags, mode_t mode) if (flags & O_CREAT && GetLastError () != ERROR_ALREADY_EXISTS && !allow_ntsec && allow_ntea) - set_file_attribute (has_acls (), get_win32_name (), mode); + set_file_attribute (has_acls (), NULL, get_win32_name (), mode); set_fs_flags (pc.fs_flags ()); |