1 /* GStreamer UDP network utility functions
2 * Copyright (C) 2006 Tim-Philipp Müller <tim centricular net>
3 * Copyright (C) 2006 Joni Valtanen <joni.valtanen@movial.fi>
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Library General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Library General Public License for more details.
15 * You should have received a copy of the GNU Library General Public
16 * License along with this library; if not, write to the
17 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 * Boston, MA 02111-1307, USA.
29 #include "gstudpnetutils.h"
34 gst_udp_net_utils_win32_wsa_startup (GstObject * obj)
39 error = WSAStartup (0x0202, &w);
42 GST_WARNING_OBJECT (obj, "WSAStartup error: %d", error);
46 if (w.wVersion != 0x0202) {
48 GST_WARNING_OBJECT (obj, "Winsock version wrong : 0x%x", w.wVersion);
58 gst_udp_get_addr (const char *hostname, int port, struct sockaddr_storage *addr)
60 struct addrinfo hints, *res, *nres;
61 char service[NI_MAXSERV];
64 memset (&hints, 0, sizeof (hints));
65 hints.ai_family = AF_UNSPEC;
66 hints.ai_socktype = SOCK_DGRAM;
67 snprintf (service, sizeof (service) - 1, "%d", port);
68 service[sizeof (service) - 1] = '\0';
70 if ((ret = getaddrinfo (hostname, (port == -1) ? NULL : service, &hints,
77 if (nres->ai_family == AF_INET || nres->ai_family == AF_INET6)
83 memcpy (addr, nres->ai_addr, nres->ai_addrlen);
85 errno = EAI_ADDRFAMILY;
94 gst_udp_join_group (int sockfd, gboolean loop, int ttl,
95 struct sockaddr_storage *addr)
98 int l = (loop == FALSE) ? 0 : 1;
100 switch (addr->ss_family) {
103 struct ip_mreq mreq4;
105 mreq4.imr_multiaddr.s_addr =
106 ((struct sockaddr_in *) addr)->sin_addr.s_addr;
107 mreq4.imr_interface.s_addr = INADDR_ANY;
110 setsockopt (sockfd, IPPROTO_IP, IP_MULTICAST_LOOP, &l,
115 setsockopt (sockfd, IPPROTO_IP, IP_MULTICAST_TTL, &ttl,
120 setsockopt (sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP,
121 (const void *) &mreq4, sizeof (mreq4))) < 0)
128 struct ipv6_mreq mreq6;
130 memcpy (&mreq6.ipv6mr_multiaddr,
131 &(((struct sockaddr_in6 *) addr)->sin6_addr),
132 sizeof (struct in6_addr));
133 mreq6.ipv6mr_interface = 0;
136 setsockopt (sockfd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &l,
141 setsockopt (sockfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &ttl,
146 setsockopt (sockfd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP,
147 (const void *) &mreq6, sizeof (mreq6))) < 0)
153 errno = EAFNOSUPPORT;
160 gst_udp_leave_group (int sockfd, struct sockaddr_storage *addr)
164 switch (addr->ss_family) {
167 struct ip_mreq mreq4;
169 mreq4.imr_multiaddr.s_addr =
170 ((struct sockaddr_in *) addr)->sin_addr.s_addr;
171 mreq4.imr_interface.s_addr = INADDR_ANY;
174 setsockopt (sockfd, IPPROTO_IP, IP_DROP_MEMBERSHIP,
175 (const void *) &mreq4, sizeof (mreq4))) < 0)
182 struct ipv6_mreq mreq6;
184 memcpy (&mreq6.ipv6mr_multiaddr,
185 &(((struct sockaddr_in6 *) addr)->sin6_addr),
186 sizeof (struct in6_addr));
187 mreq6.ipv6mr_interface = 0;
190 setsockopt (sockfd, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP,
191 (const void *) &mreq6, sizeof (mreq6))) < 0)
197 errno = EAFNOSUPPORT;
204 gst_udp_is_multicast (struct sockaddr_storage *addr)
208 switch (addr->ss_family) {
211 struct sockaddr_in *addr4 = (struct sockaddr_in *) addr;
213 ret = IN_MULTICAST (ntohl (addr4->sin_addr.s_addr));
219 struct sockaddr_in6 *addr6 = (struct sockaddr_in6 *) addr;
221 ret = IN6_IS_ADDR_MULTICAST (&addr6->sin6_addr);
226 errno = EAFNOSUPPORT;