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/*
* unistd.h --
*
* Macros, constants and prototypes for Posix conformance.
*
* Copyright 1989 Regents of the University of California Permission to use,
* copy, modify, and distribute this software and its documentation for any
* purpose and without fee is hereby granted, provided that the above
* copyright notice appear in all copies. The University of California makes
* no representations about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*/
#ifndef _UNISTD
#define _UNISTD
#include <sys/types.h>
#ifndef NULL
#define NULL 0
#endif
/*
* Strict POSIX stuff goes here. Extensions go down below, in the ifndef
* _POSIX_SOURCE section.
*/
extern void _exit(int status);
extern int access(const char *path, int mode);
extern int chdir(const char *path);
extern int chown(const char *path, uid_t owner, gid_t group);
extern int close(int fd);
extern int dup(int oldfd);
extern int dup2(int oldfd, int newfd);
extern int execl(const char *path, ...);
extern int execle(const char *path, ...);
extern int execlp(const char *file, ...);
extern int execv(const char *path, char **argv);
extern int execve(const char *path, char **argv, char **envp);
extern int execvpw(const char *file, char **argv);
extern pid_t fork(void);
extern char * getcwd(char *buf, size_t size);
extern gid_t getegid(void);
extern uid_t geteuid(void);
extern gid_t getgid(void);
extern int getgroups(int bufSize, int *buffer);
extern pid_t getpid(void);
extern uid_t getuid(void);
extern int isatty(int fd);
extern long lseek(int fd, long offset, int whence);
extern int pipe(int *fildes);
extern int read(int fd, char *buf, size_t size);
extern int setgid(gid_t group);
extern int setuid(uid_t user);
extern unsigned sleep(unsigned seconds);
extern char * ttyname(int fd);
extern int unlink(const char *path);
extern int write(int fd, const char *buf, size_t size);
#ifndef _POSIX_SOURCE
extern char * crypt(const char *, const char *);
extern int fchown(int fd, uid_t owner, gid_t group);
extern int flock(int fd, int operation);
extern int ftruncate(int fd, unsigned long length);
extern int ioctl(int fd, int request, ...);
extern int readlink(const char *path, char *buf, int bufsize);
extern int setegid(gid_t group);
extern int seteuidw(uid_t user);
extern int setreuid(int ruid, int euid);
extern int symlink(const char *, const char *);
extern int ttyslot(void);
extern int truncate(const char *path, unsigned long length);
extern int vfork(void);
#endif /* _POSIX_SOURCE */
#endif /* _UNISTD */
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