#include "xdr.h"
#include "macros.h"

/******** client only ***************/

db__start_procedure_call (procnum)
    int procnum;
{
    int reply;

    DB_SEND_INT (procnum);
    DB_RECV_INT (&reply);
    if (reply != procnum)
    {
	if (reply == 0)
	{
	    db_noproc_error(procnum);
	}
	else
	{
	    db_protocol_error();
	}
	return DB_PROTOCOL_ERR;
    }
    return DB_OK;
}

/***** driver only *******************/

/* return codes:
 * DB_OK  ok
 * DB_EOF eof from client
 */
db__recv_procnum (n)
    int *n;
{
    XDR xdrs;
    int stat;

    stat = DB_OK;

    xdr_begin_recv (&xdrs);
    if(!xdr_int (&xdrs, n))
	stat = DB_EOF;
    xdr_end_recv (&xdrs);

    return stat;
}

db__send_procedure_ok(n)
    int n;
{
    return db__send_int (n);
}

db__send_procedure_not_implemented(n)
    int n;
{
    return db__send_int (n?0:-1);
}