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#ifndef _SYS_UNISTD_H
#define _SYS_UNISTD_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <_ansi.h>
#include <sys/types.h>
#define __need_size_t
#include <stddef.h>
 
extern char **environ;
 
/* Cygwin32 _exit does return, others do not */
#ifdef __CYGWIN32__
void	_EXFUN(_exit, (int _status ));
#else
void	_EXFUN(_exit, (int _status ) _ATTRIBUTE ((noreturn)));
#endif
 
int	_EXFUN(access,(const char *_path, int _amode ));
unsigned  _EXFUN(alarm, (unsigned _secs ));
int     _EXFUN(chdir, (const char *_path ));
int     _EXFUN(chmod, (const char *_path, mode_t _mode ));
int     _EXFUN(chown, (const char *_path, uid_t _owner, gid_t _group ));
int     _EXFUN(close, (int _fildes ));
char    _EXFUN(*ctermid, (char *_s ));
char    _EXFUN(*cuserid, (char *_s ));
int     _EXFUN(dup, (int _fildes ));
int     _EXFUN(dup2, (int _fildes, int _fildes2 ));
int     _EXFUN(execl, (const char *_path, const char *, ... ));
int     _EXFUN(execle, (const char *_path, const char *, ... ));
int     _EXFUN(execlp, (const char *_file, const char *, ... ));
int     _EXFUN(execv, (const char *_path, char * const _argv[] ));
int     _EXFUN(execve, (const char *_path, char * const _argv[], char * const _envp[] ));
int     _EXFUN(execvp, (const char *_file, char * const _argv[] ));
pid_t   _EXFUN(fork, (void ));
long    _EXFUN(fpathconf, (int _fd, int _name ));
int     _EXFUN(fsync, (int _fd));
char    _EXFUN(*getcwd, (char *_buf, size_t _size ));
gid_t   _EXFUN(getegid, (void ));
uid_t   _EXFUN(geteuid, (void ));
gid_t   _EXFUN(getgid, (void ));
int     _EXFUN(getgroups, (int _gidsetsize, gid_t _grouplist[] ));
char    _EXFUN(*getlogin, (void ));
size_t  _EXFUN(getpagesize, (void));
pid_t   _EXFUN(getpgrp, (void ));
pid_t   _EXFUN(getpid, (void ));
pid_t   _EXFUN(getppid, (void ));
uid_t   _EXFUN(getuid, (void ));
int     _EXFUN(isatty, (int _fildes ));
int     _EXFUN(link, (const char *_path1, const char *_path2 ));
off_t   _EXFUN(lseek, (int _fildes, off_t _offset, int _whence ));
long    _EXFUN(pathconf, (char *_path, int _name ));
int     _EXFUN(pause, (void ));
int     _EXFUN(pipe, (int _fildes[2] ));
int     _EXFUN(read, (int _fildes, void *_buf, size_t _nbyte ));
int     _EXFUN(rmdir, (const char *_path ));
void *  _EXFUN(sbrk,  (size_t incr));
int     _EXFUN(setgid, (gid_t _gid ));
int     _EXFUN(setpgid, (pid_t _pid, pid_t _pgid ));
pid_t   _EXFUN(setsid, (void ));
int     _EXFUN(setuid, (uid_t _uid ));
unsigned _EXFUN(sleep, (unsigned int _seconds ));
void    _EXFUN(swab, (const void *, void *, ssize_t));
long    _EXFUN(sysconf, (int _name ));
pid_t   _EXFUN(tcgetpgrp, (int _fildes ));
int     _EXFUN(tcsetpgrp, (int _fildes, pid_t _pgrp_id ));
char    _EXFUN(*ttyname, (int _fildes ));
int     _EXFUN(unlink, (const char *_path ));
int     _EXFUN(write, (int _fildes, const void *_buf, size_t _nbyte ));
 
/* Provide prototypes for most of the _<systemcall> names that are
   provided in newlib for some compilers.  */
int     _EXFUN(_close, (int _fildes ));
pid_t   _EXFUN(_fork, (void ));
pid_t   _EXFUN(_getpid, (void ));
int     _EXFUN(_link, (const char *_path1, const char *_path2 ));
off_t   _EXFUN(_lseek, (int _fildes, off_t _offset, int _whence ));
int     _EXFUN(_read, (int _fildes, void *_buf, size_t _nbyte ));
void *  _EXFUN(_sbrk,  (size_t incr));
int     _EXFUN(_unlink, (const char *_path ));
int     _EXFUN(_write, (int _fildes, const void *_buf, size_t _nbyte ));
 
#ifdef __CYGWIN32__
unsigned _EXFUN(usleep, (unsigned int _useconds ));
int     _EXFUN(ftruncate, (int fd, off_t length));
int     _EXFUN(truncate, (const char *, off_t length));
int	_EXFUN(gethostname, (char *name, size_t len));
char *	_EXFUN(mktemp, (char *));
int     _EXFUN(sync, (char *));
#endif
 
# define	F_OK	0
# define	R_OK	4
# define	W_OK	2
# define	X_OK	1
 
# define	SEEK_SET	0
# define	SEEK_CUR	1
# define	SEEK_END	2
 
#ifdef __svr4__
# define _POSIX_JOB_CONTROL	1
# define _POSIX_SAVED_IDS	1
# define _POSIX_VERSION	199009L
#endif
 
#ifdef __CYGWIN32__
# define _POSIX_JOB_CONTROL	1
# define _POSIX_SAVED_IDS	0
# define _POSIX_VERSION		199009L
#endif
 
#define STDIN_FILENO    0       /* standard input file descriptor */
#define STDOUT_FILENO   1       /* standard output file descriptor */
#define STDERR_FILENO   2       /* standard error file descriptor */
 
long _EXFUN(sysconf, (int _name));
 
# define	_SC_ARG_MAX	0
# define	_SC_CHILD_MAX	1
# define	_SC_CLK_TCK	2
# define	_SC_NGROUPS_MAX	3
# define	_SC_OPEN_MAX	4
/* no _SC_STREAM_MAX */
# define	_SC_JOB_CONTROL	5
# define	_SC_SAVED_IDS	6
# define	_SC_VERSION	7
# define        _SC_PAGESIZE    8
 
# define	_PC_LINK_MAX	0
# define	_PC_MAX_CANON	1
# define	_PC_MAX_INPUT	2
# define	_PC_NAME_MAX	3
# define	_PC_PATH_MAX	4
# define	_PC_PIPE_BUF	5
# define	_PC_CHOWN_RESTRICTED	6
# define	_PC_NO_TRUNC	7
# define	_PC_VDISABLE	8
 
# ifndef	_POSIX_SOURCE
#  define	MAXNAMLEN	1024
# endif		/* _POSIX_SOURCE */
 
/* FIXME: This is temporary until winsup gets sorted out.  */
#ifdef __CYGWIN32__
#define MAXPATHLEN (260 - 1 /* NUL */)
#else
# define	MAXPATHLEN	1024
#endif
 
#ifdef __cplusplus
}
#endif
#endif /* _SYS_UNISTD_H */