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author | Luca Abeni <lucabe72@email.it> | 2007-11-14 07:42:46 +0000 |
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committer | Luca Abeni <lucabe72@email.it> | 2007-11-14 07:42:46 +0000 |
commit | a8bde059e6e8fb7edbd0ada9d7e475a1532494e7 (patch) | |
tree | 8674c6b993b3eac49fb46287ca86694b9d5eb88f /libavformat/udp.c | |
parent | 0ec12335110fbc748d9b0d82e0059bae908bcbe1 (diff) | |
download | ffmpeg-streaming-a8bde059e6e8fb7edbd0ada9d7e475a1532494e7.zip ffmpeg-streaming-a8bde059e6e8fb7edbd0ada9d7e475a1532494e7.tar.gz |
Avoid to duplicate the multicast code between the IPv4-only and
protocol-independent versions
Originally committed as revision 11012 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavformat/udp.c')
-rw-r--r-- | libavformat/udp.c | 65 |
1 files changed, 24 insertions, 41 deletions
diff --git a/libavformat/udp.c b/libavformat/udp.c index ec437d8..af433ed 100644 --- a/libavformat/udp.c +++ b/libavformat/udp.c @@ -45,28 +45,31 @@ typedef struct { #define UDP_TX_BUF_SIZE 32768 #define UDP_MAX_PKT_SIZE 65536 -#ifdef CONFIG_IPV6 - static int udp_ipv6_set_multicast_ttl(int sockfd, int mcastTTL, struct sockaddr *addr) { +#ifdef IP_MULTICAST_TTL if (addr->sa_family == AF_INET) { if (setsockopt(sockfd, IPPROTO_IP, IP_MULTICAST_TTL, &mcastTTL, sizeof(mcastTTL)) < 0) { perror("setsockopt(IP_MULTICAST_TTL)"); return -1; } } +#endif +#ifdef CONFIG_IPV6 if (addr->sa_family == AF_INET6) { if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &mcastTTL, sizeof(mcastTTL)) < 0) { perror("setsockopt(IPV6_MULTICAST_HOPS)"); return -1; } } +#endif return 0; } static int udp_ipv6_join_multicast_group(int sockfd, struct sockaddr *addr) { - struct ip_mreq mreq; - struct ipv6_mreq mreq6; +#ifdef IP_ADD_MEMBERSHIP if (addr->sa_family == AF_INET) { + struct ip_mreq mreq; + mreq.imr_multiaddr.s_addr = ((struct sockaddr_in *)addr)->sin_addr.s_addr; mreq.imr_interface.s_addr= INADDR_ANY; if (setsockopt(sockfd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (const void *)&mreq, sizeof(mreq)) < 0) { @@ -74,7 +77,11 @@ static int udp_ipv6_join_multicast_group(int sockfd, struct sockaddr *addr) { return -1; } } +#endif +#ifdef CONFIG_IPV6 if (addr->sa_family == AF_INET6) { + struct ipv6_mreq mreq6; + memcpy(&mreq6.ipv6mr_multiaddr, &(((struct sockaddr_in6 *)addr)->sin6_addr), sizeof(struct in6_addr)); mreq6.ipv6mr_interface= 0; if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP, &mreq6, sizeof(mreq6)) < 0) { @@ -82,13 +89,15 @@ static int udp_ipv6_join_multicast_group(int sockfd, struct sockaddr *addr) { return -1; } } +#endif return 0; } static int udp_ipv6_leave_multicast_group(int sockfd, struct sockaddr *addr) { - struct ip_mreq mreq; - struct ipv6_mreq mreq6; +#ifdef IP_DROP_MEMBERSHIP if (addr->sa_family == AF_INET) { + struct ip_mreq mreq; + mreq.imr_multiaddr.s_addr = ((struct sockaddr_in *)addr)->sin_addr.s_addr; mreq.imr_interface.s_addr= INADDR_ANY; if (setsockopt(sockfd, IPPROTO_IP, IP_DROP_MEMBERSHIP, (const void *)&mreq, sizeof(mreq)) < 0) { @@ -96,7 +105,11 @@ static int udp_ipv6_leave_multicast_group(int sockfd, struct sockaddr *addr) { return -1; } } +#endif +#ifdef CONFIG_IPV6 if (addr->sa_family == AF_INET6) { + struct ipv6_mreq mreq6; + memcpy(&mreq6.ipv6mr_multiaddr, &(((struct sockaddr_in6 *)addr)->sin6_addr), sizeof(struct in6_addr)); mreq6.ipv6mr_interface= 0; if (setsockopt(sockfd, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP, &mreq6, sizeof(mreq6)) < 0) { @@ -104,9 +117,11 @@ static int udp_ipv6_leave_multicast_group(int sockfd, struct sockaddr *addr) { return -1; } } +#endif return 0; } +#ifdef CONFIG_IPV6 static struct addrinfo* udp_ipv6_resolve_host(const char *hostname, int port, int type, int family, int flags) { struct addrinfo hints, *res = 0; int error; @@ -345,45 +360,24 @@ static int udp_open(URLContext *h, const char *uri, int flags) len = sizeof(my_addr1); getsockname(udp_fd, (struct sockaddr *)&my_addr1, &len); s->local_port = ntohs(my_addr1.sin_port); - -#ifdef IP_MULTICAST_TTL - if (s->is_multicast) { - if (h->flags & URL_WRONLY) { - /* output */ - if (setsockopt(udp_fd, IPPROTO_IP, IP_MULTICAST_TTL, - &s->ttl, sizeof(s->ttl)) < 0) { - perror("IP_MULTICAST_TTL"); - goto fail; - } - } else { - /* input */ - memset(&s->mreq, 0, sizeof(s->mreq)); - s->mreq.imr_multiaddr = s->dest_addr.sin_addr; - s->mreq.imr_interface.s_addr = htonl (INADDR_ANY); - if (setsockopt(udp_fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, - &s->mreq, sizeof(s->mreq)) < 0) { - perror("rtp: IP_ADD_MEMBERSHIP"); - goto fail; - } - } - } -#endif #else if (s->is_multicast && !(h->flags & URL_WRONLY)) s->local_port = port; udp_fd = udp_ipv6_set_local(h); if (udp_fd < 0) goto fail; +#endif /* CONFIG_IPV6 */ if (s->is_multicast) { if (h->flags & URL_WRONLY) { + /* output */ if (udp_ipv6_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0) goto fail; } else { + /* input */ if (udp_ipv6_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr) < 0) goto fail; } } -#endif /* CONFIG_IPV6 */ if (is_output) { /* limit the tx buf size to limit latency */ @@ -458,19 +452,8 @@ static int udp_close(URLContext *h) { UDPContext *s = h->priv_data; -#ifndef CONFIG_IPV6 -#ifdef IP_DROP_MEMBERSHIP - if (s->is_multicast && !(h->flags & URL_WRONLY)) { - if (setsockopt(s->udp_fd, IPPROTO_IP, IP_DROP_MEMBERSHIP, - &s->mreq, sizeof(s->mreq)) < 0) { - perror("IP_DROP_MEMBERSHIP"); - } - } -#endif -#else if (s->is_multicast && !(h->flags & URL_WRONLY)) udp_ipv6_leave_multicast_group(s->udp_fd, (struct sockaddr *)&s->dest_addr); -#endif closesocket(s->udp_fd); ff_network_close(); av_free(s); |