blob: 33a48c0845b3d6b659fac93ba4a55ea5a158a52f (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
|
/* This file is part of the Project Athena Zephyr Notification System.
* It contains source for ZReceivePacket function.
*
* Created by: Robert French
*
* $Source$
* $Author$
*
* Copyright (c) 1987 by the Massachusetts Institute of Technology.
* For copying and distribution information, see the file
* "mit-copyright.h".
*/
/* $Header$ */
#ifndef lint
static char rcsid_ZReceivePacket_c[] = "$Header$";
#endif lint
#include <zephyr/mit-copyright.h>
#include <zephyr/zephyr_internal.h>
Code_t ZReceivePacket(buffer, ret_len, from)
ZPacket_t buffer;
int *ret_len;
struct sockaddr_in *from;
{
int retval;
struct _Z_InputQ *nextq;
if (ZGetFD() < 0)
return (ZERR_NOPORT);
if (ZQLength()) {
if ((retval = Z_ReadEnqueue()) != ZERR_NONE)
return (retval);
}
else {
if ((retval = Z_ReadWait()) != ZERR_NONE)
return (retval);
}
nextq = (struct _Z_InputQ *) Z_GetFirstComplete();
*ret_len = nextq->packet_len;
bcopy(nextq->packet, buffer, *ret_len);
if (from)
*from = nextq->from;
(void) Z_RemQueue(nextq);
return (ZERR_NONE);
}
|
