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#ifndef __UNISTD_H
#define __UNISTD_H
#ifndef _POSIX_SOURCE
This header file is not defined in pure ANSI
#endif
#pragma lib "/$M/lib/ape/libap.a"
#define _POSIX_VERSION 199309L
#define _POSIX_ASYNC_IO -1
#define _POSIX_CHOWN_RESTRICTED 1
#define _POSIX_NO_TRUNC 1
#define _POSIX_PRIO_IO -1
#define _POSIX_SYNC_IO -1
#define _POSIX_VDISABLE -1
#ifndef _SIZE_T
#define _SIZE_T
typedef unsigned long size_t;
#endif
#ifndef _SSIZE_T
#define _SSIZE_T
typedef long ssize_t;
#endif
#ifndef NULL
#ifndef NULL
#ifdef __cplusplus
#define NULL 0
#else
#define NULL ((void*)0)
#endif
#endif
#endif
/* access */
#define R_OK 4
#define W_OK 2
#define X_OK 1
#define F_OK 0 /* test for existence */
/* lockf */
#define F_ULOCK 0 /* unlock a previously locked region */
#define F_LOCK 1 /* lock a region for exclusive use */
#define F_TLOCK 2 /* test and lock a region for exclusive use */
#define F_TEST 3 /* test a region for a previous lock */
/* lseek */
#ifndef SEEK_SET /* also defined in stdio.h */
#define SEEK_SET 0
#define SEEK_CUR 1
#define SEEK_END 2
#endif
/* sysconf argument */
#define _SC_ARG_MAX 1 /* max chars in args to exec */
#define _SC_CHILD_MAX 2 /* max child process per process */
#define _SC_CLK_TCK 3 /* number of clock() units per second */
#define _SC_NGROUPS_MAX 4 /* max supplementary groups per process */
#define _SC_OPEN_MAX 5
#define _SC_STREAM_MAX 6
#define _SC_TZNAME_MAX 7
#define _SC_JOB_CONTROL 8 /* posix job control */
#define _SC_SAVED_IDS 9 /* saved suid/sgid per process */
#define _SC_VERSION 10 /* this version */
#define _SC_LOGIN_NAME_MAX 11 /* max length of a login name */
/* pathconf argument */
#define _PC_LINK_MAX 1
#define _PC_MAX_CANON 2
#define _PC_MAX_INPUT 3
#define _PC_NAME_MAX 4
#define _PC_PATH_MAX 5
#define _PC_PIPE_BUF 6
#define _PC_CHOWN_RESTRICTED 7
#define _PC_NO_TRUNC 8
#define _PC_VDISABLE 9
/* standard filenos */
#define STDIN_FILENO 0
#define STDOUT_FILENO 1
#define STDERR_FILENO 2
#ifdef __cplusplus
extern "C" {
#endif
/* process primitives */
extern int execl(const char *, const char *, ...);
extern int execv(const char *, const char **);
extern int execle(const char *, const char *, const char *, ...);
extern int execve(const char *, const char **, const char **);
extern int execlp(const char *, const char *, ...);
extern int execvp(const char *, const char **);
extern void _exit(int);
extern unsigned int alarm(unsigned int);
extern int pause(void);
extern unsigned int sleep(unsigned int);
#ifdef __TYPES_H
extern pid_t fork(void);
#endif
/* process environment */
extern char *getlogin(void);
extern char *cuserid(char *);
extern char *ttyname(int);
extern int isatty(int);
extern long sysconf(int);
#ifdef __TYPES_H
extern pid_t getpid(void);
extern pid_t getppid(void);
extern uid_t getuid(void);
extern uid_t geteuid(void);
extern gid_t getgid(void);
extern gid_t getegid(void);
extern int setuid(uid_t);
extern int setgid(gid_t);
extern int getgroups(int, gid_t *);
extern pid_t getpgrp(void);
extern int setpgid(pid_t, pid_t);
extern pid_t setsid(void);
#endif
/* files and directories */
extern int chdir(const char *);
extern int link(const char *, const char *);
extern char *getcwd(char *, size_t);
extern int unlink(const char *);
extern int rmdir(const char *);
extern int rename(const char *, const char *);
extern int access(const char *, int);
extern long pathconf(const char *, int);
extern long fpathconf(int, int);
#ifdef __TYPES_H
extern int chown(const char *, uid_t, gid_t);
#endif
/* input and output primitives */
extern int pipe(int *);
extern int dup(int);
extern int dup2(int, int);
extern int close(int);
extern ssize_t read(int, void *, size_t);
extern ssize_t write(int, const void *, size_t);
#ifdef __TYPES_H
extern int ftruncate(int, off_t);
extern off_t lseek(int, off_t, int);
#endif
/* device- and class-specific functions */
#ifdef __TYPES_H
extern pid_t tcgetpgrp(int);
extern int tcsetpgrp(int, pid_t);
#endif
#ifdef _REENTRANT_SOURCE
extern char *getlogin_r(char *, int);
#endif
/* berkeley specific functions */
#ifdef _BSD_EXTENSION
#include <bsd.h>
#endif
#ifdef __cplusplus
}
#endif
#endif
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