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

Code_t
ZPeekPacket(char **buffer, int *ret_len, struct sockaddr_in *from)
{
    Code_t retval;
    struct _Z_InputQ *nextq;

    if ((retval = Z_WaitForComplete()) != ZERR_NONE)
	return (retval);

    nextq =Z_GetFirstComplete();

    *ret_len = nextq->packet_len;

    if (!(*buffer = (char *) malloc((unsigned) *ret_len)))
	return (ENOMEM);

    (void) memcpy(*buffer, nextq->packet, *ret_len);

    if (from)
	*from = nextq->from;

    return (ZERR_NONE);
}