#ifndef _UNISTD_H
#define _UNISTD_H

/* see Posix standard -- 1003.1 sect 2.10 */

#ifndef F_OK
/* file access stuff */
#define	F_OK			0
#define	X_OK			1
#define	W_OK			2
#define	R_OK			4
#endif

#ifndef SEEK_SET
/* lseek() origins */
#define	SEEK_SET	0		/* from beginning of file */
#define	SEEK_CUR	1		/* from current location */
#define	SEEK_END	2		/* from end of file */
#endif


/* 1003.1 section 8.2.1.2 */
#define STDIN_FILENO	0
#define STDOUT_FILENO	1
#define STDERR_FILENO	2

#if 0
extern	void _exit(int);
/* of course it exits, but don't use it	*/
#endif

extern int	access(const char *name, int amode);
extern int	chdir(const char *pathname);
extern int	close(int handle);
extern int	dup(int handle);
extern int	dup2(int handle1, int handle2);

/* not a standard function */
extern long fsize(char *name);

extern char *getcwd(char *buffer, int size);

/* not a standard function */
extern void cwd(char *buffer);

/* not a standard function */
int getopt(int argc, char **argv, char *optstring)

extern int	isatty(int handle);
extern long	lseek(int handle, long offset, int origin));

#if 0
/* not a standard function */
extern char *mktemp(char *pattern);
#endif

extern int	rmdir(const char *pathname);
extern int	read(int handle, void *data, int length);

/* not a standard function */
extern long	lread(int handle, void *data, long length));

/* not a standard function */
extern unsigned sleep(unsigned int seconds);

/* not a standard function */
extern int	stime(long *rawtime);

/* not a standard function */
extern long	tell(int handle);

extern int unlink(char *filename);

extern int	write(int handle, const void *data, int length));

/* not a standard function */
extern long	lwrite(int handle, const void *data, long length));


/* not a standard function */
extern void	usleep (unsigned long usec));


/* 
 * fork exec wait
 * not at all standard but replacements for fork/exec... pairs
 * with no Mint running; same arguments as for standard exec functions
 */

int forkl(char *program, char *arg0, ...);
int forkv(char *program, char **argv);
int forklp(char *program, char *arg0, ...);
int forkvp(char *program, char **argv);
int forkle(char *program, char *arg0, ...);
int forklpe(char *program, char *arg0, ...);
int forkve(char *program, char **argv, char **envp);
int forkvpe(char *program, char **argv, char **envp);

	/* provided for compatibility with older versions, 
	 * although the names have changed!!
	 */
int forkvep(char *program, **argv, *envp);
int forkvpep(char *program, **argv, *envp);

int wait(int *rvp);

#endif /* _UNISTD_H */