sys/_types/_s_ifmt.h

[XSI] The symbolic names for file modes for use as values of mode_t shall be defined as described in <sys/stat.h>

#define S_IFMT 0170000

#define S_IFIFO 0010000

#define S_IFCHR 0020000

#define S_IFDIR 0040000

#define S_IFBLK 0060000

#define S_IFREG 0100000

#define S_IFLNK 0120000

#define S_IFSOCK 0140000

#define S_IFWHT 0160000

#define S_IRWXU 0000700

#define S_IRUSR 0000400

#define S_IWUSR 0000200

#define S_IXUSR 0000100

#define S_IRWXG 0000070

#define S_IRGRP 0000040

#define S_IWGRP 0000020

#define S_IXGRP 0000010

#define S_IRWXO 0000007

#define S_IROTH 0000004

#define S_IWOTH 0000002

#define S_IXOTH 0000001

#define S_ISUID 0004000

#define S_ISGID 0002000

#define S_ISVTX 0001000

#define S_ISTXT S_ISVTX

#define S_IREAD S_IRUSR

#define S_IWRITE S_IWUSR

#define S_IEXEC S_IXUSR