/* ------------------- cmd.h ----------------*/

#ifdef CMD_H
#include <stdio.h>
#include <strings.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include "defs.h"
#include "gettoken.h"
#include "sign.h"
#else

extern void redirect(int srcfd, char *srcfile,
                     int dstfd, char *dstfile,
                     int errfd, char * errfile,
                     BOOLEAN append, BOOLEAN bckgrnd);
/* I/O - redirection */

extern int invoke(int argc, char *argv[],
                  int srcfd, char *srcfile, 
                  int dstfd, char *dstfile, 
                  int errfd, char *errfile, 
                  BOOLEAN append, BOOLEAN bckgrnd);
/* invoke() - execute simple command */
	
extern TOKEN command(int *waitpid);
/* collect a simple command from stdin 
 * by calling gettoken() - do redirection
 * if necessary by redirect() and execute
 * command by invoke()
 */

#endif