zgetlocs.c

Linux下的多协议即时通讯程序源代码

/* This file is part of the Project Athena Zephyr Notification System.
 * It contains source for the ZGetLocations 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"

#define min(a,b) ((a)<(b)?(a):(b))

/* Prototype for -Wmissing-prototypes */
Code_t ZGetLocations(ZLocations_t *location, int *numlocs);

Code_t ZGetLocations(ZLocations_t *location, int *numlocs)
{
    int i;
	
    if (!__locate_list)
	return (ZERR_NOLOCATIONS);

    if (__locate_next == __locate_num)
	return (ZERR_NOMORELOCS);
	
    for (i=0;i<min(*numlocs, __locate_num-__locate_next);i++)
	location[i] = __locate_list[i+__locate_next];

    if (__locate_num-__locate_next < *numlocs)
	*numlocs = __locate_num-__locate_next;

    __locate_next += *numlocs;
	
    return (ZERR_NONE);
}