लिनक्स/linux-0.01.tar/include/unistd.h
< लिनक्स | linux-0.01.tar
#ifndef _UNISTD_H
#define _UNISTD_H
/* ok, this may be a joke, but I'm working on it */
#define _POSIX_VERSION 198808L
#define _POSIX_CHOWN_RESTRICTED /* only root can do a chown (I think..) */
/* #define _POSIX_NO_TRUNC*/ /* pathname truncation (but see in kernel) */
#define _POSIX_VDISABLE '\0' /* character to disable things like ^C */
/*#define _POSIX_SAVED_IDS */ /* we'll get to this yet */
/*#define _POSIX_JOB_CONTROL */ /* we aren't there quite yet. Soon hopefully */
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
#ifndef NULL
#define NULL ((void *)0)
#endif
/* access */
#define F_OK 0
#define X_OK 1
#define W_OK 2
#define R_OK 4
/* lseek */
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
/* _SC stands for System Configuration. We don't use them much */
#define _SC_ARG_MAX 1
#define _SC_CHILD_MAX 2
#define _SC_CLOCKS_PER_SEC 3
#define _SC_NGROUPS_MAX 4
#define _SC_OPEN_MAX 5
#define _SC_JOB_CONTROL 6
#define _SC_SAVED_IDS 7
#define _SC_VERSION 8
/* more (possibly) configurable things - now pathnames */
#define _PC_LINK_MAX 1
#define _PC_MAX_CANON 2
#define _PC_MAX_INPUT 3
#define _PC_NAME_MAX 4
#define _PC_PATH_MAX 5
#define _PC_PIPE_BUF 6
#define _PC_NO_TRUNC 7
#define _PC_VDISABLE 8
#define _PC_CHOWN_RESTRICTED 9
#include <sys/stat.h>
#include <sys/times.h>
#include <sys/utsname.h>
#include <utime.h>
#ifdef __LIBRARY__
#define __NR_setup 0 /* used only by init, to get system going */
#define __NR_exit 1
#define __NR_fork 2
#define __NR_read 3
#define __NR_write 4
#define __NR_open 5
#define __NR_close 6
#define __NR_waitpid 7
#define __NR_creat 8
#define __NR_link 9
#define __NR_unlink 10
#define __NR_execve 11
#define __NR_chdir 12
#define __NR_time 13
#define __NR_mknod 14
#define __NR_chmod 15
#define __NR_chown 16
#define __NR_break 17
#define __NR_stat 18
#define __NR_lseek 19
#define __NR_getpid 20
#define __NR_mount 21
#define __NR_umount 22
#define __NR_setuid 23
#define __NR_getuid 24
#define __NR_stime 25
#define __NR_ptrace 26
#define __NR_alarm 27
#define __NR_fstat 28
#define __NR_pause 29
#define __NR_utime 30
#define __NR_stty 31
#define __NR_gtty 32
#define __NR_access 33
#define __NR_nice 34
#define __NR_ftime 35
#define __NR_sync 36
#define __NR_kill 37
#define __NR_rename 38
#define __NR_mkdir 39
#define __NR_rmdir 40
#define __NR_dup 41
#define __NR_pipe 42
#define __NR_times 43
#define __NR_prof 44
#define __NR_brk 45
#define __NR_setgid 46
#define __NR_getgid 47
#define __NR_signal 48
#define __NR_geteuid 49
#define __NR_getegid 50
#define __NR_acct 51
#define __NR_phys 52
#define __NR_lock 53
#define __NR_ioctl 54
#define __NR_fcntl 55
#define __NR_mpx 56
#define __NR_setpgid 57
#define __NR_ulimit 58
#define __NR_uname 59
#define __NR_umask 60
#define __NR_chroot 61
#define __NR_ustat 62
#define __NR_dup2 63
#define __NR_getppid 64
#define __NR_getpgrp 65
#define __NR_setsid 66
#define _syscall0(type,name) \
type name(void) \
{ \
type __res; \
__asm__ volatile ("int $0x80" \
: "=a" (__res) \
: "0" (__NR_##name)); \
if (__res >= 0) \
return __res; \
errno = -__res; \
return -1; \
}
#define _syscall1(type,name,atype,a) \
type name(atype a) \
{ \
type __res; \
__asm__ volatile ("int $0x80" \
: "=a" (__res) \
: "0" (__NR_##name),"b" (a)); \
if (__res >= 0) \
return __res; \
errno = -__res; \
return -1; \
}
#define _syscall2(type,name,atype,a,btype,b) \
type name(atype a,btype b) \
{ \
type __res; \
__asm__ volatile ("int $0x80" \
: "=a" (__res) \
: "0" (__NR_##name),"b" (a),"c" (b)); \
if (__res >= 0) \
return __res; \
errno = -__res; \
return -1; \
}
#define _syscall3(type,name,atype,a,btype,b,ctype,c) \
type name(atype a,btype b,ctype c) \
{ \
type __res; \
__asm__ volatile ("int $0x80" \
: "=a" (__res) \
: "0" (__NR_##name),"b" (a),"c" (b),"d" (c)); \
if (__res<0) \
errno=-__res , __res = -1; \
return __res;\
}
#endif /* __LIBRARY__ */
extern int errno;
int access(const char * filename, mode_t mode);
int acct(const char * filename);
int alarm(int sec);
int brk(void * end_data_segment);
void * sbrk(ptrdiff_t increment);
int chdir(const char * filename);
int chmod(const char * filename, mode_t mode);
int chown(const char * filename, uid_t owner, gid_t group);
int chroot(const char * filename);
int close(int fildes);
int creat(const char * filename, mode_t mode);
int dup(int fildes);
int execve(const char * filename, char ** argv, char ** envp);
int execv(const char * pathname, char ** argv);
int execvp(const char * file, char ** argv);
int execl(const char * pathname, char * arg0, ...);
int execlp(const char * file, char * arg0, ...);
int execle(const char * pathname, char * arg0, ...);
volatile void exit(int status);
volatile void _exit(int status);
int fcntl(int fildes, int cmd, ...);
int fork(void);
int getpid(void);
int getuid(void);
int geteuid(void);
int getgid(void);
int getegid(void);
int ioctl(int fildes, int cmd, ...);
int kill(pid_t pid, int signal);
int link(const char * filename1, const char * filename2);
int lseek(int fildes, off_t offset, int origin);
int mknod(const char * filename, mode_t mode, dev_t dev);
int mount(const char * specialfile, const char * dir, int rwflag);
int nice(int val);
int open(const char * filename, int flag, ...);
int pause(void);
int pipe(int * fildes);
int read(int fildes, char * buf, off_t count);
int setpgrp(void);
int setpgid(pid_t pid,pid_t pgid);
int setuid(uid_t uid);
int setgid(gid_t gid);
void (*signal(int sig, void (*fn)(int)))(int);
int stat(const char * filename, struct stat * stat_buf);
int fstat(int fildes, struct stat * stat_buf);
int stime(time_t * tptr);
int sync(void);
time_t time(time_t * tloc);
time_t times(struct tms * tbuf);
int ulimit(int cmd, long limit);
mode_t umask(mode_t mask);
int umount(const char * specialfile);
int uname(struct utsname * name);
int unlink(const char * filename);
int ustat(dev_t dev, struct ustat * ubuf);
int utime(const char * filename, struct utimbuf * times);
pid_t waitpid(pid_t pid,int * wait_stat,int options);
pid_t wait(int * wait_stat);
int write(int fildes, const char * buf, off_t count);
int dup2(int oldfd, int newfd);
int getppid(void);
pid_t getpgrp(void);
pid_t setsid(void);
#endif