2 * Amanda, The Advanced Maryland Automatic Network Disk Archiver
3 * Copyright (c) 1991-1999 University of Maryland at College Park
4 * Copyright (c) 2007-2012 Zmanda, Inc. All Rights Reserved.
7 * Permission to use, copy, modify, distribute, and sell this software and its
8 * documentation for any purpose is hereby granted without fee, provided that
9 * the above copyright notice appear in all copies and that both that
10 * copyright notice and this permission notice appear in supporting
11 * documentation, and that the name of U.M. not be used in advertising or
12 * publicity pertaining to distribution of the software without specific,
13 * written prior permission. U.M. makes no representations about the
14 * suitability of this software for any purpose. It is provided "as is"
15 * without express or implied warranty.
17 * U.M. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ALL
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL U.M.
19 * BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
20 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
21 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
22 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
24 * Author: James da Silva, Systems Design and Analysis Group
25 * Computer Science Department
26 * University of Maryland at College Park
29 * $Id: dgram.h,v 1.15 2006/05/25 01:47:11 johnfranks Exp $
31 * interface for datagram module
39 * Maximum datagram (UDP packet) we can generate. Size is limited by
40 * a 16 bit length field in an IPv4 header (65535), which must include
41 * the 24 byte IP header and the 8 byte UDP header.
43 #define MAX_DGRAM (((1<<16)-1)-24-8)
45 typedef struct dgram_s {
49 char data[MAX_DGRAM+1];
52 int dgram_bind(dgram_t *dgram, sa_family_t family, in_port_t *portp);
53 void dgram_socket(dgram_t *dgram, int sock);
54 int dgram_send_addr(sockaddr_union *addr, dgram_t *dgram);
55 ssize_t dgram_recv(dgram_t *dgram, int timeout,
56 sockaddr_union *fromaddr);
57 void dgram_zero(dgram_t *dgram);
58 int dgram_cat(dgram_t *dgram, const char *fmt, ...)
60 void dgram_eatline(dgram_t *dgram);
62 #endif /* ! DGRAM_H */