libpurple/protocols/zephyr/ZGetSubs.c

/* This file is part of the Project Athena Zephyr Notification System.
 * It contains source for the ZGetSubscriptions function.
 *
 *	Created by:	Robert French
 *
 *	Copyright (c) 1987 by the Massachusetts Institute of Technology.
 *	For copying and distribution information, see the file
 *	"mit-copyright.h".
 */

#include "internal.h"

/* Prototype for -Wmissing-prototypes */
Code_t ZGetSubscriptions(ZSubscription_t *subscription, int *numsubs);

Code_t ZGetSubscriptions(ZSubscription_t *subscription, int *numsubs)
{
    int i;

    if (!__subscriptions_list)
	return (ZERR_NOSUBSCRIPTIONS);

    if (__subscriptions_next == __subscriptions_num)
	return (ZERR_NOMORESUBSCRIPTIONS);

	for (i = 0; i < MIN(*numsubs, __subscriptions_num - __subscriptions_next);
	     i++) {
		subscription[i] = __subscriptions_list[i + __subscriptions_next];
	}

    if (__subscriptions_num-__subscriptions_next < *numsubs)
	*numsubs = __subscriptions_num-__subscriptions_next;

    __subscriptions_next += *numsubs;

    return (ZERR_NONE);
}