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/*-

 * Copyright (c) 1991, 1993, 1994

 *        The Regents of the University of California.  All rights reserved.

 *

 * Redistribution and use in source and binary forms, with or without

 * modification, are permitted provided that the following conditions

 * are met:

 * 1. Redistributions of source code must retain the above copyright

 *    notice, this list of conditions and the following disclaimer.

 * 2. Redistributions in binary form must reproduce the above copyright

 *    notice, this list of conditions and the following disclaimer in the

 *    documentation and/or other materials provided with the distribution.

 * 3. Neither the name of the University nor the names of its contributors

 *    may be used to endorse or promote products derived from this software

 *    without specific prior written permission.

 *

 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND

 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE

 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

 * SUCH DAMAGE.

 *

 *        @(#)unistd.h        8.12 (Berkeley) 4/27/95

 */

#ifndef _UNISTD_H_

#define        _UNISTD_H_

#include <sys/cdefs.h>

#include <sys/types.h>

#define         STDIN_FILENO        0        /* standard input file descriptor */

#define        STDOUT_FILENO        1        /* standard output file descriptor */

#define        STDERR_FILENO        2        /* standard error file descriptor */

#ifndef NULL

#define        NULL                0        /* null pointer constant */

#endif

__BEGIN_DECLS

int         access(const char *, int);

unsigned int         alarm(unsigned int);

int         chdir(const char *);

int         chown(const char *, uid_t, gid_t);

int         close(int);

size_t         confstr(int, char *, size_t);

int         dup(int);

int         dup2(int, int);

int         execl(const char *, const char *, ...);

int         execle(const char *, const char *, ...);

int         execlp(const char *, const char *, ...);

int         execv(const char *, char * const *);

int         execve(const char *, char * const *, char * const *);

int         execvp(const char *, char * const *);

void        _exit(int) __noreturn;

/* pid_t         fork(void); */

pid_t         vfork(void);

/* long         fpathconf(int, int); */

char        *getcwd(char *, size_t);

gid_t         getegid(void);

uid_t         geteuid(void);

gid_t         getgid(void);

/* int         getgroups(int, gid_t []); */

/* char        *getlogin(void); */

pid_t         getpgrp(void);

pid_t         getpid(void);

pid_t         getppid(void);

uid_t         getuid(void);

int         isatty(int);

int         link(const char *, const char *);

off_t         lseek(int, off_t, int);

/* long         pathconf(const char *, int); */

int         pause(void);

int         pipe(int *);

ssize_t         read(int, void *, size_t);

int         rmdir(const char *);

int         setgid(gid_t);

int         setpgid(pid_t, pid_t);

pid_t         setsid(void);

int         setuid(uid_t);

unsigned int         sleep(unsigned int);

/* long         sysconf(int); */

pid_t         tcgetpgrp(int);

int         tcsetpgrp(int, pid_t);

/* char        *ttyname(int); */

int         unlink(const char *);

ssize_t         write(int, const void *, size_t);

int         getopt(int, char * const [], const char *);

extern         char *optarg;                        /* getopt(3) external variables */

extern         int opterr;

extern         int optind;

extern         int optopt;

#ifndef        _POSIX_SOURCE

#ifdef        __STDC__

struct timeval;                                /* select(2) */

#endif

/* char        *brk(const char *); */

/* int         chroot(const char *); */

int         fchdir(int);

/* int         fchown(int, int, int); */

int         fsync(int);

int         ftruncate(int, off_t);

/* int         getdtablesize(void); */

/* long         gethostid(void); */

int         gethostname(char *, size_t);

/* mode_t         getmode(const void *, mode_t); */

int         getpagesize(void);

char        *getpass(const char *);

pid_t         getpgid(pid_t);

/* char        *getusershell(void); */

char        *getwd(char *);                        /* obsoleted by getcwd() */

/* int         initgroups(const char *, int); */

/* int         iruserok(unsigned long, int, const char *, const char *); */

int         mknod(const char *, mode_t, dev_t);

int         mkstemp(char *);

char        *mktemp(char *);

/* int         nfssvc(int, void *); */

int         nice(int);

void         psignal(unsigned int, const char *);

extern const char *const sys_siglist[];

/* int         readlink(const char *, char *, int); */

/* int         reboot(int); */

/* int         rresvport(int *); */

/* int         ruserok(const char *, int, const char *, const char *); */

/* char        *sbrk(int); */

/* int         select(int, fd_set *, fd_set *, fd_set *, struct timeval *); */

int         setegid(gid_t);

int         seteuid(uid_t);

/* int         setgroups(int, const gid_t *); */

/* void         sethostid(long); */

int         sethostname(const char *, size_t);

int         setpgrp(pid_t, pid_t);        /* obsoleted by setpgid() */

/* int         setregid(gid_t, gid_t); */

/* int         setreuid(uid_t, uid_t); */

/* int         setrgid(gid_t); */

/* int         setruid(uid_t); */

/* void         setusershell(void); */

/* int         symlink(const char *, const char *); */

void         sync(void);

int         truncate(const char *, off_t);

/* unsigned int         ualarm(unsigned int, unsigned int); */

void         usleep(unsigned int);

pid_t         getsid(pid_t);

void         strmode(mode_t, char *);

extern char *suboptarg;                        /* getsubopt(3) external variable */

int         getsubopt(char **, char * const *, char **);

#endif /* !_POSIX_SOURCE */

void         fslib_init(void);        /* used by Prex native task */

void         fslib_exit(void);        /* used by Prex native task */

__END_DECLS

/* configurable system strings */

#define        _CS_PATH                 1

#endif /* !_UNISTD_H_ */