don't report proc_unknown errors while getting motd from old servers

[moira.git] / lib / mr_ops.c

/*
 *	$Source$
 *	$Author$
 *	$Header$
 *
 *	Copyright (C) 1987, 1989 by the Massachusetts Institute of Technology
 *	For copying and distribution information, please see the file
 *	<mit-copyright.h>.
 *	
 * 	This routine is part of the client library.  It handles
 *	the protocol operations: invoking an update and getting the
 *	SMS message of the day.
 */

#ifndef lint
static char *rcsid_sms_do_update_c = "$Header$";
#endif lint

#include <mit-copyright.h>
#include "sms_private.h"


/* Invoke a DCM update. */

int sms_do_update()
{
    int status;
    sms_params param_st;
    struct sms_params *params = NULL;
    struct sms_params *reply = NULL;

    CHECK_CONNECTED;
    params = &param_st;
    params->sms_version_no = sending_version_no;
    params->sms_procno = SMS_DO_UPDATE;
    params->sms_argc = 0;
    params->sms_argl = NULL;
    params->sms_argv = NULL;
	
    if ((status = sms_do_call(params, &reply)) == 0)
	status = reply->sms_status;
	
    sms_destroy_reply(reply);

    return status;
}


/* Get the SMS motd.  This returns an SMS status, and motd will either
 * point to NULL or the motd in a static buffer.
 */

int sms_motd(motd)
char **motd;
{
    int status;
    sms_params param_st;
    struct sms_params *params = NULL;
    struct sms_params *reply = NULL;
    static char buffer[1024];

    *motd = NULL;
    CHECK_CONNECTED;
    params = &param_st;
    params->sms_version_no = sending_version_no;
    params->sms_procno = SMS_MOTD;
    params->sms_argc = 0;
    params->sms_argl = NULL;
    params->sms_argv = NULL;
	
    if ((status = sms_do_call(params, &reply)))
      goto punt;

    while ((status = reply->sms_status) == SMS_MORE_DATA) {
	if (reply->sms_argc > 0) {
	    strncpy(buffer, reply->sms_argv[0], sizeof(buffer));
	    *motd = buffer;
	}
	sms_destroy_reply(reply);
	reply = NULL;

	initialize_operation(_sms_recv_op, sms_start_recv, &reply,
			     (int (*)())NULL);
	queue_operation(_sms_conn, CON_INPUT, _sms_recv_op);

	complete_operation(_sms_recv_op);
	if (OP_STATUS(_sms_recv_op) != OP_COMPLETE) {
	    sms_disconnect();
	    status = SMS_ABORTED;
	    return(status);
	}
    }	
 punt:
    sms_destroy_reply(reply);
    /* for backwards compatability */
    if (status == SMS_UNKNOWN_PROC)
      return(0);
    else
      return(status);
}