unistd.h

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#ifndef __UNISTD_H__
#define __UNISTD_H__
 
#include <stddef.h>
#include <stdint.h>
#include <sys/types.h>
 
#include "kconfig.h"
 
#define MQ_PRIO_MAX _MQ_PRIO_MAX
 
#define STDIN_FILENO 0  /* Standard input file descriptor */
#define STDOUT_FILENO 1 /* Standard output file descriptor */
#define STDERR_FILENO 2 /* Standard error file descriptor */
 
unsigned int sleep(unsigned int seconds);
 
int usleep(useconds_t usec);
 
int close(int fd);
 
int dup(int oldfd);
 
int dup2(int oldfd, int newfd);
 
int pipe(int pipefd[2]);
 
pid_t vfork(void);
 
pid_t fork(void);
 
pid_t setsid(void);
 
int execve(const char *pathname, char *const argv[], char *const envp[]);
 
int execvp(const char *file, char *const argv[]);
 
ssize_t read(int fd, void *buf, size_t count);
 
ssize_t write(int fd, const void *buf, size_t count);
 
off_t lseek(int fd, long offset, int whence);
 
pid_t getpid(void);
 
pid_t getppid(void);
 
char *getcwd(char *buf, size_t size);
 
int chdir(const char *path);
 
int unlink(const char *pathname);
 
int rmdir(const char *pathname);
 
/* Values sysconf() reports, with the numbers Linux gives them */
#define _SC_ARG_MAX 0
#define _SC_CLK_TCK 2
#define _SC_OPEN_MAX 4
#define _SC_PAGESIZE 8
 
/* Newlib ships one that answers for a system Tenok is not */
#define sysconf _sysconf
long sysconf(int name);
 
/* Accessibility asked about by access() */
#define F_OK 0 /* The file exists */
#define X_OK 1 /* The file can be executed */
#define W_OK 2 /* The file can be written */
#define R_OK 4 /* The file can be read */
 
int isatty(int fd);
 
int access(const char *pathname, int mode);
 
uid_t getuid(void);
 
int setuid(uid_t uid);
 
int seteuid(uid_t uid);
uid_t geteuid(void);
 
gid_t getgid(void);
 
int setgid(gid_t gid);
 
int setegid(gid_t gid);
gid_t getegid(void);
 
int getgroups(int size, gid_t list[]);
 
int link(const char *oldpath, const char *newpath);
 
int symlink(const char *target, const char *linkpath);
 
int readlink(const char *pathname, char *buf, size_t bufsiz);
 
int fchdir(int fd);
 
int ttyname_r(int fd, char *buf, size_t buflen);
 
int chroot(const char *path);
 
int chown(const char *pathname, uid_t owner, gid_t group);
 
int lchown(const char *pathname, uid_t owner, gid_t group);
 
#endif