types.h

最早的linux操作系统源代码（3）

#ifndef _SYS_TYPES_H
#define _SYS_TYPES_H

#ifndef _SIZE_T
#define _SIZE_T
typedef unsigned int size_t;
#endif

#ifndef _TIME_T
#define _TIME_T
typedef long time_t;
#endif

#ifndef _PTRDIFF_T
#define _PTRDIFF_T
typedef long ptrdiff_t;
#endif

#ifndef NULL
#define NULL ((void *) 0)
#endif

typedef int pid_t;
typedef unsigned short uid_t;
typedef unsigned char gid_t;
typedef unsigned short dev_t;
typedef unsigned short ino_t;
typedef unsigned short mode_t;
typedef unsigned short umode_t;
typedef unsigned char nlink_t;
typedef int daddr_t;
typedef long off_t;
typedef unsigned char u_char;
typedef unsigned short ushort;

typedef struct { int quot,rem; } div_t;
typedef struct { long quot,rem; } ldiv_t;

struct ustat {
	daddr_t f_tfree;
	ino_t f_tinode;
	char f_fname[6];
	char f_fpack[6];
};

#endif