/*
 * quick and dirty "rexec" command line client.
 * spd@daphne.cps.unizar.es
 * 
 * NOTE: we should also read d_fderr; but I don't need it rigth now
 * NOTE: we should add error checking
 */


#include <stdio.h>
#include <stdlib.h>  /* atoi */
#include <unistd.h>  /* getpid */

#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>

#include <string.h>
#include <errno.h>


int main(int argc, char *argv[])
{

	struct servent			*s;
	char					*pass;
	char					*ahost;
	int						n=0;
	char					buf[BUFSIZ];
	int						d_fdout,d_fderr;

	if (argc!=4)
	{
		fprintf( stderr,"uso: %s user host \"cmd\"\n", argv[0] );
		exit(1);
	}

	pass=getpass("password: ");
	setservent(1);
	s=getservbyname("exec", "tcp");

	ahost=strdup(argv[2]);
	fprintf(stderr,"%s:%s@%s:%d %s\n", pass,argv[1],ahost,s->s_port, argv[3]);
	d_fdout=rexec(&ahost,s->s_port, argv[1], pass, argv[3], &d_fderr);
	endservent();

	while ( n=read(d_fdout,buf, sizeof(buf)) )
	{
		write(1,buf,n);
	}

	return 0;
}