#define	    UNIX_S_IFMT  0170000
#define     UNIX_S_IFDIR 0040000
#define     UNIX_S_IFCHR 0020000
#define     UNIX_S_IFBLK 0060000
#define     UNIX_S_IFREG 0100000
#define     UNIX_S_IFLNK 0120000
#define     UNIX_S_IFIFO 0010000
#define     UNIX_S_IFSOCK 0140000
#define     UNIX_S_ISUID 04000
#define     UNIX_S_ISGID 02000
#define     UNIX_S_ISVTX 01000
#define     UNIX_S_IREAD 00444
#define     UNIX_S_IWRITE    00200
#define     UNIX_S_IEXEC 00111