linux 에서의 파일 타입

#define S_IFMT  00170000    
#define S_IFSOCK 0140000    
#define S_IFLNK  0120000    
#define S_IFREG  0100000    
#define S_IFBLK  0060000    
#define S_IFDIR  0040000    
#define S_IFCHR  0020000    
#define S_IFIFO  0010000    
#define S_ISUID  0004000    
#define S_ISGID  0002000    
#define S_ISVTX  0001000    
    
#define S_ISLNK(m)  (((m) & S_IFMT) == S_IFLNK)    
#define S_ISREG(m)  (((m) & S_IFMT) == S_IFREG)    
#define S_ISDIR(m)  (((m) & S_IFMT) == S_IFDIR)    
#define S_ISCHR(m)  (((m) & S_IFMT) == S_IFCHR)    
#define S_ISBLK(m)  (((m) & S_IFMT) == S_IFBLK)    
#define S_ISFIFO(m) (((m) & S_IFMT) == S_IFIFO)    
#define S_ISSOCK(m) (((m) & S_IFMT) == S_IFSOCK)

/usr/include/linux/stat.h