2 * $Id: netddp_recvfrom.c,v 1.4 2001-11-25 21:55:10 srittau Exp $
4 * Copyright (c) 1999 Adrian Sun (asun@zoology.washington.edu)
5 * Copyright (c) 1990,1991 Regents of The University of Michigan.
6 * All Rights Reserved. See COPYRIGHT.
13 #endif /* HAVE_CONFIG_H */
15 static int _netddp_recvfrom_dummy;
20 #endif /* HAVE_UNISTD_H */
21 #include <sys/types.h>
22 #include <sys/socket.h>
27 #include <netat/appletalk.h>
28 #include <netat/ddp.h>
29 #endif /* MACOSX_SERVER */
31 #include <netatalk/at.h>
32 #include <netatalk/endian.h>
33 #include <netatalk/ddp.h>
34 #include <atalk/netddp.h>
37 #define MAX(a, b) ((a) < (b) ? (b) : (a))
41 int netddp_recvfrom(int fd, void *buf, int buflen, unsigned int dummy,
42 struct sockaddr *addr, unsigned int *addrlen)
45 struct ddpehdr ddphdr;
46 struct sockaddr_at *sat = (struct sockaddr_at *) addr;
49 iov[0].iov_base = (void *) &ddphdr;
50 iov[0].iov_len = sizeof(ddphdr);
51 iov[1].iov_base = buf;
52 iov[1].iov_len = buflen;
54 while ((i = readv(fd, iov, 2)) < 0) {
60 sat->sat_addr.s_net = ddphdr.deh_snet;
61 sat->sat_addr.s_node = ddphdr.deh_snode;
62 sat->sat_port = ddphdr.deh_sport;
65 return MAX(0, i - sizeof(ddphdr));
68 #endif /* os x server */