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/*-
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 * Copyright (c) 1991, 1993, 1994
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 *        The Regents of the University of California.  All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer.
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 * 2. Redistributions in binary form must reproduce the above copyright
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 *    notice, this list of conditions and the following disclaimer in the
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 *    documentation and/or other materials provided with the distribution.
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 * 3. Neither the name of the University nor the names of its contributors
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 *    may be used to endorse or promote products derived from this software
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 *    without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * SUCH DAMAGE.
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 *
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 *        @(#)unistd.h        8.12 (Berkeley) 4/27/95
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 */
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#ifndef _UNISTD_H_
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#define        _UNISTD_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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#define         STDIN_FILENO        0        /* standard input file descriptor */
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#define        STDOUT_FILENO        1        /* standard output file descriptor */
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#define        STDERR_FILENO        2        /* standard error file descriptor */
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#ifndef NULL
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#define        NULL                0        /* null pointer constant */
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#endif
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__BEGIN_DECLS
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int         access(const char *, int);
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unsigned int         alarm(unsigned int);
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int         chdir(const char *);
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int         chown(const char *, uid_t, gid_t);
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int         close(int);
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size_t         confstr(int, char *, size_t);
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int         dup(int);
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int         dup2(int, int);
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int         execl(const char *, const char *, ...);
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int         execle(const char *, const char *, ...);
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int         execlp(const char *, const char *, ...);
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int         execv(const char *, char * const *);
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int         execve(const char *, char * const *, char * const *);
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int         execvp(const char *, char * const *);
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void        _exit(int) __noreturn;
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/* pid_t         fork(void); */
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pid_t         vfork(void);
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/* long         fpathconf(int, int); */
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char        *getcwd(char *, size_t);
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gid_t         getegid(void);
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uid_t         geteuid(void);
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gid_t         getgid(void);
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/* int         getgroups(int, gid_t []); */
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/* char        *getlogin(void); */
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pid_t         getpgrp(void);
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pid_t         getpid(void);
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pid_t         getppid(void);
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uid_t         getuid(void);
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int         isatty(int);
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int         link(const char *, const char *);
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off_t         lseek(int, off_t, int);
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/* long         pathconf(const char *, int); */
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int         pause(void);
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int         pipe(int *);
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ssize_t         read(int, void *, size_t);
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int         rmdir(const char *);
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int         setgid(gid_t);
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int         setpgid(pid_t, pid_t);
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pid_t         setsid(void);
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int         setuid(uid_t);
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unsigned int         sleep(unsigned int);
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/* long         sysconf(int); */
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pid_t         tcgetpgrp(int);
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int         tcsetpgrp(int, pid_t);
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/* char        *ttyname(int); */
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int         unlink(const char *);
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ssize_t         write(int, const void *, size_t);
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int         getopt(int, char * const [], const char *);
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extern         char *optarg;                        /* getopt(3) external variables */
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extern         int opterr;
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extern         int optind;
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extern         int optopt;
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#ifndef        _POSIX_SOURCE
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#ifdef        __STDC__
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struct timeval;                                /* select(2) */
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#endif
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/* char        *brk(const char *); */
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/* int         chroot(const char *); */
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int         fchdir(int);
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/* int         fchown(int, int, int); */
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int         fsync(int);
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int         ftruncate(int, off_t);
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/* int         getdtablesize(void); */
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/* long         gethostid(void); */
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int         gethostname(char *, size_t);
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/* mode_t         getmode(const void *, mode_t); */
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int         getpagesize(void);
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char        *getpass(const char *);
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pid_t         getpgid(pid_t);
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/* char        *getusershell(void); */
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char        *getwd(char *);                        /* obsoleted by getcwd() */
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/* int         initgroups(const char *, int); */
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/* int         iruserok(unsigned long, int, const char *, const char *); */
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int         mknod(const char *, mode_t, dev_t);
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int         mkstemp(char *);
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char        *mktemp(char *);
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/* int         nfssvc(int, void *); */
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int         nice(int);
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void         psignal(unsigned int, const char *);
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extern const char *const sys_siglist[];
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/* int         readlink(const char *, char *, int); */
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/* int         reboot(int); */
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/* int         rresvport(int *); */
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/* int         ruserok(const char *, int, const char *, const char *); */
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/* char        *sbrk(int); */
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/* int         select(int, fd_set *, fd_set *, fd_set *, struct timeval *); */
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int         setegid(gid_t);
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int         seteuid(uid_t);
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/* int         setgroups(int, const gid_t *); */
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/* void         sethostid(long); */
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int         sethostname(const char *, size_t);
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int         setpgrp(pid_t, pid_t);        /* obsoleted by setpgid() */
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/* int         setregid(gid_t, gid_t); */
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/* int         setreuid(uid_t, uid_t); */
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/* int         setrgid(gid_t); */
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/* int         setruid(uid_t); */
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/* void         setusershell(void); */
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/* int         symlink(const char *, const char *); */
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void         sync(void);
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int         truncate(const char *, off_t);
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/* unsigned int         ualarm(unsigned int, unsigned int); */
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void         usleep(unsigned int);
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pid_t         getsid(pid_t);
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void         strmode(mode_t, char *);
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extern char *suboptarg;                        /* getsubopt(3) external variable */
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int         getsubopt(char **, char * const *, char **);
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#endif /* !_POSIX_SOURCE */
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void         fslib_init(void);        /* used by Prex native task */
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void         fslib_exit(void);        /* used by Prex native task */
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__END_DECLS
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/* configurable system strings */
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#define        _CS_PATH                 1
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#endif /* !_UNISTD_H_ */