1 /* This file is part of the Project Athena Zephyr Notification System.
2  * It contains source for ZPeekPacket function.
3  *
4  *	Created by:	Robert French
5  *
6  *	Copyright (c) 1987 by the Massachusetts Institute of Technology.
7  *	For copying and distribution information, see the file
8  *	"mit-copyright.h".
9  */
10 
11 #include "internal.h"
12 
ZPeekPacket(buffer,ret_len,from)13 Code_t ZPeekPacket(buffer, ret_len, from)
14     char **buffer;
15     int *ret_len;
16     struct sockaddr_in *from;
17 {
18     Code_t retval;
19     struct _Z_InputQ *nextq;
20 
21     if ((retval = Z_WaitForComplete()) != ZERR_NONE)
22 	return (retval);
23 
24     nextq =Z_GetFirstComplete();
25 
26     *ret_len = nextq->packet_len;
27 
28     if (!(*buffer = (char *) malloc((unsigned) *ret_len)))
29 	return (ENOMEM);
30 
31     (void) memcpy(*buffer, nextq->packet, *ret_len);
32 
33     if (from)
34 	*from = nextq->from;
35 
36     return (ZERR_NONE);
37 }
38