#include	<sys/types.h>
#include	<sys/wait.h>
#include <stdio.h>

char	*env_init[] = { "DISPLAY=200.1.17.17:0.0", "PATH=/tmp", NULL };

char display[]= "-display 200.1.17.17:0.0";
char command[]=" -e top";

void  err_sys(char * msg) {
  printf("%s \n", msg);
  exit(-1); 
}

#define buffsize 256

int
main(void)
{
	pid_t	pid;
	char * argv[7];
	int pfd[2];
	char * buff[buffsize];
	
	if (pipe(pfd) < 0) {
	  perror("pipe");
	  exit(1);
	}

	if ( (pid = fork()) < 0)
		err_sys("fork error");
	else if (pid == 0) {	/* specify pathname, specify environment */
	  /*
	    argv[0]="xterm.sh";
	    argv[1]="-d 3";
	    argv[2]=NULL;
	  */
	  dup2(pfd[0],0);
	  close(pfd[1]);
	  
	  argv[0]="xterm";
	  argv[1]="-display";
	  argv[2]="200.1.17.17:0.0";
	  argv[3]="-e";
	  argv[4]="top";
	  argv[5]=NULL;
	  if (execle("/usr/openwin/bin/xterm",argv[0],argv[1],argv[2],
		     argv[3],argv[4],argv[5], 0,
		    env_init) < 0)
		  err_sys("execle error");
	}
	close (pfd[0]);
	
	while (read(0, buff, buffsize) >0)
	  write(pfd[1], buff, buffsize);
	
	if (waitpid(pid, NULL, 0) < 0)
		err_sys("wait error");

	exit(0);
}