static int socket_open_listen(struct sockaddr_in *my_addr)
{
int server_fd, tmp;
server_fd = socket(AF_INET,SOCK_STREAM,0);
if (server_fd < 0) {
perror ("socket");
return -1;
}
tmp = 1;
if (setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp)))
av_log(NULL, AV_LOG_WARNING, "setsockopt SO_REUSEADDR failed\n");
my_addr->sin_family = AF_INET;
if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) {
char bindmsg[32];
snprintf(bindmsg, sizeof(bindmsg), "bind(port %d)", ntohs(my_addr->sin_port));
perror (bindmsg);
closesocket(server_fd);
return -1;
}
if (listen (server_fd, 50) < 0) {
perror ("listen");
closesocket(server_fd);
return -1;
}
if (ff_socket_nonblock(server_fd, 1) < 0)
av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
return server_fd;
}
int ff_listen_bind(int fd, const struct sockaddr *addr,
socklen_t addrlen, int timeout, URLContext *h)
{
int ret;
int reuse = 1;
struct pollfd lp = { fd, POLLIN, 0 };
if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse))) {
av_log(NULL, AV_LOG_WARNING, "setsockopt(SO_REUSEADDR) failed\n");
}
ret = bind(fd, addr, addrlen);
if (ret)
return ff_neterrno();
ret = listen(fd, 1);
if (ret)
return ff_neterrno();
ret = ff_poll_interrupt(&lp, 1, timeout, &h->interrupt_callback);
if (ret < 0)
return ret;
ret = accept(fd, NULL, NULL);
if (ret < 0)
return ff_neterrno();
closesocket(fd);
ff_socket_nonblock(ret, 1);
return ret;
}
static void *circular_buffer_task( void *_URLContext)
{
URLContext *h = _URLContext;
UDPContext *s = h->priv_data;
int old_cancelstate;
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old_cancelstate);
pthread_mutex_lock(&s->mutex);
if (ff_socket_nonblock(s->udp_fd, 0) < 0) {
av_log(h, AV_LOG_ERROR, "Failed to set blocking mode");
s->circular_buffer_error = AVERROR(EIO);
goto end;
}
while(1) {
int len;
pthread_mutex_unlock(&s->mutex);
/* Blocking operations are always cancellation points;
see "General Information" / "Thread Cancelation Overview"
in Single Unix. */
pthread_setcancelstate(PTHREAD_CANCEL_ENABLE, &old_cancelstate);
len = recv(s->udp_fd, s->tmp+4, sizeof(s->tmp)-4, 0);
pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &old_cancelstate);
pthread_mutex_lock(&s->mutex);
if (len < 0) {
if (ff_neterrno() != AVERROR(EAGAIN) && ff_neterrno() != AVERROR(EINTR)) {
s->circular_buffer_error = ff_neterrno();
goto end;
}
continue;
}
AV_WL32(s->tmp, len);
if(av_fifo_space(s->fifo) < len + 4) {
/* No Space left */
if (s->overrun_nonfatal) {
av_log(h, AV_LOG_WARNING, "Circular buffer overrun. "
"Surviving due to overrun_nonfatal option\n");
continue;
} else {
av_log(h, AV_LOG_ERROR, "Circular buffer overrun. "
"To avoid, increase fifo_size URL option. "
"To survive in such case, use overrun_nonfatal option\n");
s->circular_buffer_error = AVERROR(EIO);
goto end;
}
}
av_fifo_generic_write(s->fifo, s->tmp, len+4, NULL);
pthread_cond_signal(&s->cond);
}
end:
pthread_cond_signal(&s->cond);
pthread_mutex_unlock(&s->mutex);
return NULL;
}
int ff_listen_connect(int fd, const struct sockaddr *addr,
socklen_t addrlen, int timeout, URLContext *h,
int will_try_next)
{
struct pollfd p = {fd, POLLOUT, 0};
int ret;
socklen_t optlen;
if (ff_socket_nonblock(fd, 1) < 0)
av_log(NULL, AV_LOG_DEBUG, "ff_socket_nonblock failed\n");
while ((ret = connect(fd, addr, addrlen))) {
ret = ff_neterrno();
switch (ret) {
case AVERROR(EINTR):
if (ff_check_interrupt(&h->interrupt_callback))
return AVERROR_EXIT;
continue;
case AVERROR(EINPROGRESS):
case AVERROR(EAGAIN):
ret = ff_poll_interrupt(&p, 1, timeout, &h->interrupt_callback);
if (ret < 0)
return ret;
optlen = sizeof(ret);
if (getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen))
ret = AVUNERROR(ff_neterrno());
if (ret != 0) {
char errbuf[100];
ret = AVERROR(ret);
av_strerror(ret, errbuf, sizeof(errbuf));
if (will_try_next)
av_log(h, AV_LOG_WARNING,
"Connection to %s failed (%s), trying next address\n",
h->filename, errbuf);
else
av_log(h, AV_LOG_ERROR, "Connection to %s failed: %s\n",
h->filename, errbuf);
}
default:
return ret;
}
}
return ret;
}
/* return non zero if error */
static int udp_open(URLContext *h, const char *uri, int flags)
{
char hostname[1024];
int port, udp_fd = -1, tmp, bind_ret = -1;
UDPContext *s = NULL;
int is_output;
const char *p;
char buf[256];
#if !CONFIG_IPV6
struct sockaddr_in my_addr;
#else
struct sockaddr_storage my_addr;
#endif
int len;
h->is_streamed = 1;
h->max_packet_size = 1472;
is_output = (flags & URL_WRONLY);
if(!ff_network_init())
return AVERROR(EIO);
s = av_mallocz(sizeof(UDPContext));
if (!s)
return AVERROR(ENOMEM);
h->priv_data = s;
s->ttl = 16;
s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_MAX_PKT_SIZE;
p = strchr(uri, '?');
if (p) {
s->reuse_socket = find_info_tag(buf, sizeof(buf), "reuse", p);
if (find_info_tag(buf, sizeof(buf), "ttl", p)) {
s->ttl = strtol(buf, NULL, 10);
}
if (find_info_tag(buf, sizeof(buf), "localport", p)) {
s->local_port = strtol(buf, NULL, 10);
}
if (find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
h->max_packet_size = strtol(buf, NULL, 10);
}
if (find_info_tag(buf, sizeof(buf), "buffer_size", p)) {
s->buffer_size = strtol(buf, NULL, 10);
}
}
/* fill the dest addr */
url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port, NULL, 0, uri);
/* XXX: fix url_split */
if (hostname[0] == '\0' || hostname[0] == '?') {
/* only accepts null hostname if input */
if (flags & URL_WRONLY)
goto fail;
} else {
udp_set_remote_url(h, uri);
}
if (s->is_multicast && !(h->flags & URL_WRONLY))
s->local_port = port;
udp_fd = udp_socket_create(s, &my_addr, &len);
if (udp_fd < 0)
goto fail;
if (s->reuse_socket)
if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
goto fail;
/* the bind is needed to give a port to the socket now */
/* if multicast, try the multicast address bind first */
if (s->is_multicast && !(h->flags & URL_WRONLY)) {
bind_ret = bind(udp_fd,(struct sockaddr *)&s->dest_addr, len);
}
/* bind to the local address if not multicast or if the multicast
* bind failed */
if (bind_ret < 0 && bind(udp_fd,(struct sockaddr *)&my_addr, len) < 0)
goto fail;
len = sizeof(my_addr);
getsockname(udp_fd, (struct sockaddr *)&my_addr, &len);
s->local_port = udp_port(&my_addr, len);
if (s->is_multicast) {
if (h->flags & URL_WRONLY) {
/* output */
if (udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0)
goto fail;
} else {
/* input */
if (udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr) < 0)
goto fail;
}
}
if (is_output) {
/* limit the tx buf size to limit latency */
tmp = s->buffer_size;
if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
av_log(NULL, AV_LOG_ERROR, "setsockopt(SO_SNDBUF): %s\n", strerror(errno));
goto fail;
}
} else {
/* set udp recv buffer size to the largest possible udp packet size to
* avoid losing data on OSes that set this too low by default. */
tmp = s->buffer_size;
if (setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp)) < 0) {
av_log(NULL, AV_LOG_WARNING, "setsockopt(SO_RECVBUF): %s\n", strerror(errno));
}
/* make the socket non-blocking */
ff_socket_nonblock(udp_fd, 1);
}
s->udp_fd = udp_fd;
return 0;
fail:
if (udp_fd >= 0)
closesocket(udp_fd);
av_free(s);
return AVERROR(EIO);
}
/* return non zero if error */
static int udp_open(URLContext *h, const char *uri, int flags)
{
char hostname[1024];
int port, udp_fd = -1, tmp, bind_ret = -1;
UDPContext *s = NULL;
int is_output;
const char *p;
char buf[256];
struct sockaddr_storage my_addr;
int len;
int reuse_specified = 0;
h->is_streamed = 1;
h->max_packet_size = 1472;
is_output = !(flags & AVIO_FLAG_READ);
s = av_mallocz(sizeof(UDPContext));
if (!s)
return AVERROR(ENOMEM);
h->priv_data = s;
s->ttl = 16;
s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_MAX_PKT_SIZE;
s->circular_buffer_size = 7*188*4096;
p = strchr(uri, '?');
if (p) {
if (av_find_info_tag(buf, sizeof(buf), "reuse", p)) {
char *endptr=NULL;
s->reuse_socket = strtol(buf, &endptr, 10);
/* assume if no digits were found it is a request to enable it */
if (buf == endptr)
s->reuse_socket = 1;
reuse_specified = 1;
}
if (av_find_info_tag(buf, sizeof(buf), "ttl", p)) {
s->ttl = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "localport", p)) {
s->local_port = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
h->max_packet_size = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "buffer_size", p)) {
s->buffer_size = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "connect", p)) {
s->is_connected = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "buf_size", p)) {
s->circular_buffer_size = strtol(buf, NULL, 10)*188;
}
}
/* fill the dest addr */
av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port, NULL, 0, uri);
/* XXX: fix av_url_split */
if (hostname[0] == '\0' || hostname[0] == '?') {
/* only accepts null hostname if input */
if (!(flags & AVIO_FLAG_READ))
goto fail;
} else {
if (ff_udp_set_remote_url(h, uri) < 0)
goto fail;
}
if (s->is_multicast && (h->flags & AVIO_FLAG_READ))
s->local_port = port;
udp_fd = udp_socket_create(s, &my_addr, &len);
if (udp_fd < 0)
goto fail;
/* Follow the requested reuse option, unless it's multicast in which
* case enable reuse unless explicitely disabled.
*/
if (s->reuse_socket || (s->is_multicast && !reuse_specified)) {
s->reuse_socket = 1;
if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
goto fail;
}
/* the bind is needed to give a port to the socket now */
/* if multicast, try the multicast address bind first */
if (s->is_multicast && (h->flags & AVIO_FLAG_READ)) {
bind_ret = bind(udp_fd,(struct sockaddr *)&s->dest_addr, len);
}
/* bind to the local address if not multicast or if the multicast
* bind failed */
if (bind_ret < 0 && bind(udp_fd,(struct sockaddr *)&my_addr, len) < 0)
goto fail;
len = sizeof(my_addr);
getsockname(udp_fd, (struct sockaddr *)&my_addr, &len);
s->local_port = udp_port(&my_addr, len);
if (s->is_multicast) {
if (!(h->flags & AVIO_FLAG_READ)) {
/* output */
if (udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0)
goto fail;
} else {
/* input */
if (udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr) < 0)
goto fail;
}
}
if (is_output) {
/* limit the tx buf size to limit latency */
tmp = s->buffer_size;
if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
av_log(h, AV_LOG_ERROR, "setsockopt(SO_SNDBUF): %s\n", strerror(errno));
goto fail;
}
} else {
/* set udp recv buffer size to the largest possible udp packet size to
* avoid losing data on OSes that set this too low by default. */
tmp = s->buffer_size;
if (setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp)) < 0) {
av_log(h, AV_LOG_WARNING, "setsockopt(SO_RECVBUF): %s\n", strerror(errno));
}
/* make the socket non-blocking */
ff_socket_nonblock(udp_fd, 1);
}
if (s->is_connected) {
if (connect(udp_fd, (struct sockaddr *) &s->dest_addr, s->dest_addr_len)) {
av_log(h, AV_LOG_ERROR, "connect: %s\n", strerror(errno));
goto fail;
}
}
s->udp_fd = udp_fd;
#if 0 && HAVE_PTHREADS
if (!is_output && s->circular_buffer_size) {
/* start the task going */
s->fifo = av_fifo_alloc(s->circular_buffer_size);
if (pthread_create(&s->circular_buffer_thread, NULL, circular_buffer_task, h)) {
av_log(h, AV_LOG_ERROR, "pthread_create failed\n");
goto fail;
}
}
#endif
return 0;
fail:
if (udp_fd >= 0)
closesocket(udp_fd);
av_fifo_free(s->fifo);
av_free(s);
return AVERROR(EIO);
}
/* return non zero if error */
static int tcp_open(URLContext *h, const char *uri, int flags)
{
struct addrinfo hints, *ai, *cur_ai;
int port, fd = -1;
TCPContext *s = NULL;
int listen_socket = 0;
const char *p;
char buf[256];
int ret;
socklen_t optlen;
char hostname[1024],proto[1024],path[1024];
char portstr[10];
av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
&port, path, sizeof(path), uri);
if (strcmp(proto,"tcp") || port <= 0 || port >= 65536)
return AVERROR(EINVAL);
p = strchr(uri, '?');
if (p) {
if (av_find_info_tag(buf, sizeof(buf), "listen", p))
listen_socket = 1;
}
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
snprintf(portstr, sizeof(portstr), "%d", port);
ret = getaddrinfo(hostname, portstr, &hints, &ai);
if (ret) {
av_log(NULL, AV_LOG_ERROR,
"Failed to resolve hostname %s: %s\n",
hostname, gai_strerror(ret));
return AVERROR(EIO);
}
cur_ai = ai;
restart:
fd = socket(cur_ai->ai_family, cur_ai->ai_socktype, cur_ai->ai_protocol);
if (fd < 0)
goto fail;
if (listen_socket) {
int fd1;
ret = bind(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
listen(fd, 1);
fd1 = accept(fd, NULL, NULL);
closesocket(fd);
fd = fd1;
} else {
redo:
ff_socket_nonblock(fd, 1);
//av_log (NULL, AV_LOG_INFO, "connecting....\n");
ret = connect(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
//av_log (NULL, AV_LOG_INFO, "connecting done.\n");
}
if (ret < 0) {
int timeout = 10; //1s timeout
struct pollfd p = {fd, POLLOUT, 0};
if (ff_neterrno() == AVERROR(EINTR)) {
if (url_interrupt_cb()) {
ret = AVERROR_EXIT;
goto fail1;
}
goto redo;
}
if (ff_neterrno() != AVERROR(EINPROGRESS) &&
ff_neterrno() != AVERROR(EAGAIN))
goto fail;
/* wait until we are connected or until abort */
for(;;) {
if (url_interrupt_cb()) {
ret = AVERROR_EXIT;
goto fail1;
}
ret = poll(&p, 1, 100);
if (ret > 0)
break;
if(!--timeout){
av_log(NULL, AV_LOG_ERROR,
"TCP open %s:%d timeout\n",
hostname, port);
goto fail;
}
}
/* test error */
optlen = sizeof(ret);
getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen);
if (ret != 0) {
av_log(NULL, AV_LOG_ERROR,
"TCP connection to %s:%d failed: %s\n",
hostname, port, strerror(ret));
goto fail;
}
}
s = av_malloc(sizeof(TCPContext));
if (!s) {
ret = AVERROR(ENOMEM);
goto fail1;
}
h->priv_data = s;
h->is_streamed = 1;
s->fd = fd;
freeaddrinfo(ai);
return 0;
fail:
if (cur_ai->ai_next) {
/* Retry with the next sockaddr */
cur_ai = cur_ai->ai_next;
if (fd >= 0)
closesocket(fd);
goto restart;
}
ret = AVERROR(EIO);
fail1:
if (fd >= 0)
closesocket(fd);
freeaddrinfo(ai);
return ret;
}
/* return non zero if error */
static int udp_open(URLContext *h, const char *uri, int flags)
{
char hostname[1024], localaddr[1024] = "";
int port, udp_fd = -1, tmp, bind_ret = -1, dscp = -1;
UDPContext *s = h->priv_data;
int is_output;
const char *p;
char buf[256];
struct sockaddr_storage my_addr;
socklen_t len;
int i, num_include_sources = 0, num_exclude_sources = 0;
char *include_sources[32], *exclude_sources[32];
h->is_streamed = 1;
is_output = !(flags & AVIO_FLAG_READ);
if (s->buffer_size < 0)
s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_MAX_PKT_SIZE;
if (s->sources) {
if (parse_source_list(s->sources, include_sources,
&num_include_sources,
FF_ARRAY_ELEMS(include_sources)))
goto fail;
}
if (s->block) {
if (parse_source_list(s->block, exclude_sources, &num_exclude_sources,
FF_ARRAY_ELEMS(exclude_sources)))
goto fail;
}
if (s->pkt_size > 0)
h->max_packet_size = s->pkt_size;
p = strchr(uri, '?');
if (p) {
if (av_find_info_tag(buf, sizeof(buf), "reuse", p)) {
char *endptr = NULL;
s->reuse_socket = strtol(buf, &endptr, 10);
/* assume if no digits were found it is a request to enable it */
if (buf == endptr)
s->reuse_socket = 1;
}
if (av_find_info_tag(buf, sizeof(buf), "overrun_nonfatal", p)) {
char *endptr = NULL;
s->overrun_nonfatal = strtol(buf, &endptr, 10);
/* assume if no digits were found it is a request to enable it */
if (buf == endptr)
s->overrun_nonfatal = 1;
if (!HAVE_PTHREAD_CANCEL)
av_log(h, AV_LOG_WARNING,
"'overrun_nonfatal' option was set but it is not supported "
"on this build (pthread support is required)\n");
}
if (av_find_info_tag(buf, sizeof(buf), "ttl", p)) {
s->ttl = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "udplite_coverage", p)) {
s->udplite_coverage = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "localport", p)) {
s->local_port = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
s->pkt_size = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "buffer_size", p)) {
s->buffer_size = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "connect", p)) {
s->is_connected = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "dscp", p)) {
dscp = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "fifo_size", p)) {
s->circular_buffer_size = strtol(buf, NULL, 10);
if (!HAVE_PTHREAD_CANCEL)
av_log(h, AV_LOG_WARNING,
"'circular_buffer_size' option was set but it is not supported "
"on this build (pthread support is required)\n");
}
if (av_find_info_tag(buf, sizeof(buf), "localaddr", p)) {
av_strlcpy(localaddr, buf, sizeof(localaddr));
}
if (av_find_info_tag(buf, sizeof(buf), "sources", p)) {
if (parse_source_list(buf, include_sources, &num_include_sources,
FF_ARRAY_ELEMS(include_sources)))
goto fail;
}
if (av_find_info_tag(buf, sizeof(buf), "block", p)) {
if (parse_source_list(buf, exclude_sources, &num_exclude_sources,
FF_ARRAY_ELEMS(exclude_sources)))
goto fail;
}
if (!is_output && av_find_info_tag(buf, sizeof(buf), "timeout", p))
s->timeout = strtol(buf, NULL, 10);
if (is_output && av_find_info_tag(buf, sizeof(buf), "broadcast", p))
s->is_broadcast = strtol(buf, NULL, 10);
}
/* handling needed to support options picking from both AVOption and URL */
s->circular_buffer_size *= 188;
if (flags & AVIO_FLAG_WRITE) {
h->max_packet_size = s->pkt_size;
} else {
h->max_packet_size = UDP_MAX_PKT_SIZE;
}
h->rw_timeout = s->timeout;
/* fill the dest addr */
av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port, NULL, 0, uri);
/* XXX: fix av_url_split */
if (hostname[0] == '\0' || hostname[0] == '?') {
/* only accepts null hostname if input */
if (!(flags & AVIO_FLAG_READ))
goto fail;
} else {
if (ff_udp_set_remote_url(h, uri) < 0)
goto fail;
}
if ((s->is_multicast || s->local_port <= 0) && (h->flags & AVIO_FLAG_READ))
s->local_port = port;
if (localaddr[0])
udp_fd = udp_socket_create(s, &my_addr, &len, localaddr);
else
udp_fd = udp_socket_create(s, &my_addr, &len, s->localaddr);
if (udp_fd < 0)
goto fail;
s->local_addr_storage=my_addr; //store for future multicast join
/* Follow the requested reuse option, unless it's multicast in which
* case enable reuse unless explicitly disabled.
*/
if (s->reuse_socket > 0 || (s->is_multicast && s->reuse_socket < 0)) {
s->reuse_socket = 1;
if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
goto fail;
}
if (s->is_broadcast) {
#ifdef SO_BROADCAST
if (setsockopt (udp_fd, SOL_SOCKET, SO_BROADCAST, &(s->is_broadcast), sizeof(s->is_broadcast)) != 0)
#endif
goto fail;
}
/* Set the checksum coverage for UDP-Lite (RFC 3828) for sending and receiving.
* The receiver coverage has to be less than or equal to the sender coverage.
* Otherwise, the receiver will drop all packets.
*/
if (s->udplite_coverage) {
if (setsockopt (udp_fd, IPPROTO_UDPLITE, UDPLITE_SEND_CSCOV, &(s->udplite_coverage), sizeof(s->udplite_coverage)) != 0)
av_log(h, AV_LOG_WARNING, "socket option UDPLITE_SEND_CSCOV not available");
if (setsockopt (udp_fd, IPPROTO_UDPLITE, UDPLITE_RECV_CSCOV, &(s->udplite_coverage), sizeof(s->udplite_coverage)) != 0)
av_log(h, AV_LOG_WARNING, "socket option UDPLITE_RECV_CSCOV not available");
}
if (dscp >= 0) {
dscp <<= 2;
if (setsockopt (udp_fd, IPPROTO_IP, IP_TOS, &dscp, sizeof(dscp)) != 0)
goto fail;
}
/* If multicast, try binding the multicast address first, to avoid
* receiving UDP packets from other sources aimed at the same UDP
* port. This fails on windows. This makes sending to the same address
* using sendto() fail, so only do it if we're opened in read-only mode. */
if (s->is_multicast && !(h->flags & AVIO_FLAG_WRITE)) {
bind_ret = bind(udp_fd,(struct sockaddr *)&s->dest_addr, len);
}
/* bind to the local address if not multicast or if the multicast
* bind failed */
/* the bind is needed to give a port to the socket now */
if (bind_ret < 0 && bind(udp_fd,(struct sockaddr *)&my_addr, len) < 0) {
log_net_error(h, AV_LOG_ERROR, "bind failed");
goto fail;
}
len = sizeof(my_addr);
getsockname(udp_fd, (struct sockaddr *)&my_addr, &len);
s->local_port = udp_port(&my_addr, len);
if (s->is_multicast) {
if (h->flags & AVIO_FLAG_WRITE) {
/* output */
if (udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0)
goto fail;
}
if (h->flags & AVIO_FLAG_READ) {
/* input */
if (num_include_sources && num_exclude_sources) {
av_log(h, AV_LOG_ERROR, "Simultaneously including and excluding multicast sources is not supported\n");
goto fail;
}
if (num_include_sources) {
if (udp_set_multicast_sources(udp_fd, (struct sockaddr *)&s->dest_addr, s->dest_addr_len, include_sources, num_include_sources, 1) < 0)
goto fail;
} else {
if (udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr,(struct sockaddr *)&s->local_addr_storage) < 0)
goto fail;
}
if (num_exclude_sources) {
if (udp_set_multicast_sources(udp_fd, (struct sockaddr *)&s->dest_addr, s->dest_addr_len, exclude_sources, num_exclude_sources, 0) < 0)
goto fail;
}
}
}
if (is_output) {
/* limit the tx buf size to limit latency */
tmp = s->buffer_size;
if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
log_net_error(h, AV_LOG_ERROR, "setsockopt(SO_SNDBUF)");
goto fail;
}
} else {
/* set udp recv buffer size to the requested value (default 64K) */
tmp = s->buffer_size;
if (setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp)) < 0) {
log_net_error(h, AV_LOG_WARNING, "setsockopt(SO_RECVBUF)");
}
len = sizeof(tmp);
if (getsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, &len) < 0) {
log_net_error(h, AV_LOG_WARNING, "getsockopt(SO_RCVBUF)");
} else {
av_log(h, AV_LOG_DEBUG, "end receive buffer size reported is %d\n", tmp);
if(tmp < s->buffer_size)
av_log(h, AV_LOG_WARNING, "attempted to set receive buffer to size %d but it only ended up set as %d", s->buffer_size, tmp);
}
/* make the socket non-blocking */
ff_socket_nonblock(udp_fd, 1);
}
if (s->is_connected) {
if (connect(udp_fd, (struct sockaddr *) &s->dest_addr, s->dest_addr_len)) {
log_net_error(h, AV_LOG_ERROR, "connect");
goto fail;
}
}
for (i = 0; i < num_include_sources; i++)
av_freep(&include_sources[i]);
for (i = 0; i < num_exclude_sources; i++)
av_freep(&exclude_sources[i]);
s->udp_fd = udp_fd;
#if HAVE_PTHREAD_CANCEL
if (!is_output && s->circular_buffer_size) {
int ret;
/* start the task going */
s->fifo = av_fifo_alloc(s->circular_buffer_size);
ret = pthread_mutex_init(&s->mutex, NULL);
if (ret != 0) {
av_log(h, AV_LOG_ERROR, "pthread_mutex_init failed : %s\n", strerror(ret));
goto fail;
}
ret = pthread_cond_init(&s->cond, NULL);
if (ret != 0) {
av_log(h, AV_LOG_ERROR, "pthread_cond_init failed : %s\n", strerror(ret));
goto cond_fail;
}
ret = pthread_create(&s->circular_buffer_thread, NULL, circular_buffer_task, h);
if (ret != 0) {
av_log(h, AV_LOG_ERROR, "pthread_create failed : %s\n", strerror(ret));
goto thread_fail;
}
s->thread_started = 1;
}
#endif
return 0;
#if HAVE_PTHREAD_CANCEL
thread_fail:
pthread_cond_destroy(&s->cond);
cond_fail:
pthread_mutex_destroy(&s->mutex);
#endif
fail:
if (udp_fd >= 0)
closesocket(udp_fd);
av_fifo_freep(&s->fifo);
for (i = 0; i < num_include_sources; i++)
av_freep(&include_sources[i]);
for (i = 0; i < num_exclude_sources; i++)
av_freep(&exclude_sources[i]);
return AVERROR(EIO);
}
/* return non zero if error */
static int tcp_open(URLContext *h, const char *uri, int flags)
{
struct sockaddr_in dest_addr;
int port, fd = -1;
TCPContext *s = NULL;
fd_set wfds;
int fd_max, ret;
struct timeval tv;
socklen_t optlen;
char hostname[1024],proto[1024],path[1024];
if(!ff_network_init())
return AVERROR(EIO);
url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
&port, path, sizeof(path), uri);
if (strcmp(proto,"tcp") || port <= 0 || port >= 65536)
return AVERROR(EINVAL);
dest_addr.sin_family = AF_INET;
dest_addr.sin_port = htons(port);
if (resolve_host(&dest_addr.sin_addr, hostname) < 0)
return AVERROR(EIO);
fd = socket(AF_INET, SOCK_STREAM, 0);
if (fd < 0)
return AVERROR(EIO);
ff_socket_nonblock(fd, 1);
redo:
ret = connect(fd, (struct sockaddr *)&dest_addr,
sizeof(dest_addr));
if (ret < 0) {
if (ff_neterrno() == FF_NETERROR(EINTR))
goto redo;
if (ff_neterrno() != FF_NETERROR(EINPROGRESS) &&
ff_neterrno() != FF_NETERROR(EAGAIN))
goto fail;
/* wait until we are connected or until abort */
for(;;) {
if (url_interrupt_cb()) {
ret = AVERROR(EINTR);
goto fail1;
}
fd_max = fd;
FD_ZERO(&wfds);
FD_SET(fd, &wfds);
tv.tv_sec = 0;
tv.tv_usec = 100 * 1000;
ret = select(fd_max + 1, NULL, &wfds, NULL, &tv);
if (ret > 0 && FD_ISSET(fd, &wfds))
break;
}
/* test error */
optlen = sizeof(ret);
getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen);
if (ret != 0)
goto fail;
}
s = av_malloc(sizeof(TCPContext));
if (!s)
return AVERROR(ENOMEM);
h->priv_data = s;
h->is_streamed = 1;
s->fd = fd;
return 0;
fail:
ret = AVERROR(EIO);
fail1:
if (fd >= 0)
closesocket(fd);
return ret;
}
/* return non zero if error */
static int tcp_open(URLContext *h, const char *uri, int flags)
{
struct addrinfo hints, *ai, *cur_ai;
int port, fd = -1;
TCPContext *s = NULL;
int listen_socket = 0;
const char *p;
char buf[256];
int ret;
socklen_t optlen;
int timeout = 500, listen_timeout = -1;
char hostname[1024],proto[1024],path[1024];
char portstr[10];
av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
&port, path, sizeof(path), uri);
if (strcmp(proto, "tcp"))
return AVERROR(EINVAL);
if (port <= 0 || port >= 65536) {
av_log(h, AV_LOG_ERROR, "Port missing in uri\n");
return AVERROR(EINVAL);
}
p = strchr(uri, '?');
if (p) {
if (av_find_info_tag(buf, sizeof(buf), "listen", p))
listen_socket = 1;
if (av_find_info_tag(buf, sizeof(buf), "timeout", p)) {
timeout = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "listen_timeout", p)) {
listen_timeout = strtol(buf, NULL, 10);
}
}
memset(&hints, 0, sizeof(hints));
if(am_getconfig_bool_def("media.libplayer.ipv4only",1))
hints.ai_family = AF_INET;
else
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
snprintf(portstr, sizeof(portstr), "%d", port);
av_log(h, AV_LOG_INFO,"tcp will get address from dns!\n");
if (listen_socket)
hints.ai_flags |= AI_PASSIVE;
if (!hostname[0])
ret = getaddrinfo(NULL, portstr, &hints, &ai);
else
ret = getaddrinfo(hostname, portstr, &hints, &ai);
if (ret) {
av_log(h, AV_LOG_ERROR,
"Failed to resolve hostname %s: %s\n",
hostname, gai_strerror(ret));
return AVERROR(EIO);
}
av_log(h, AV_LOG_INFO,"resolved %s's ipaddress \n",hostname);
cur_ai = ai;
restart:
ret = AVERROR(EIO);
fd = socket(cur_ai->ai_family, cur_ai->ai_socktype, cur_ai->ai_protocol);
if (fd < 0)
goto fail;
if (listen_socket) {
int fd1;
int reuse = 1;
struct pollfd lp = { fd, POLLIN, 0 };
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse));
ret = bind(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
if (ret) {
ret = ff_neterrno();
goto fail1;
}
ret = listen(fd, 1);
if (ret) {
ret = ff_neterrno();
goto fail1;
}
ret = poll(&lp, 1, listen_timeout >= 0 ? listen_timeout : -1);
if (ret <= 0) {
ret = AVERROR(ETIMEDOUT);
goto fail1;
}
fd1 = accept(fd, NULL, NULL);
if (fd1 < 0) {
ret = ff_neterrno();
goto fail1;
}
closesocket(fd);
fd = fd1;
ff_socket_nonblock(fd, 1);
} else {
redo:
ff_socket_nonblock(fd, 1);
ret = connect(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
}
if (ret < 0) {
struct pollfd p = {fd, POLLOUT, 0};
ret = ff_neterrno();
if (ret == AVERROR(EINTR)) {
if (url_interrupt_cb()) {
ret = AVERROR_EXIT;
goto fail1;
}
goto redo;
}
if (ret != AVERROR(EINPROGRESS) &&
ret != AVERROR(EAGAIN))
goto fail;
/* wait until we are connected or until abort */
while(timeout--) {
if (url_interrupt_cb()) {
ret = AVERROR_EXIT;
goto fail1;
}
ret = poll(&p, 1, 100);
if (ret > 0)
break;
}
if (ret <= 0) {
av_log(h, AV_LOG_ERROR,
"TCP connection to %s:%d timeout failed!\n",
hostname, port);
ret = AVERROR(ETIMEDOUT);
goto fail;
}
/* test error */
optlen = sizeof(ret);
if (getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen))
ret = AVUNERROR(ff_neterrno());
if (ret != 0) {
char errbuf[100];
ret = AVERROR(ret);
av_strerror(ret, errbuf, sizeof(errbuf));
av_log(h, AV_LOG_ERROR,
"TCP connection to %s:%d failed: %s, ret = %d\n",
hostname, port, errbuf, ret);
ret = AVERROR(ret);
if(ret>0)
ret = AVERROR(EIO);
goto fail;
}
}
av_log(h, AV_LOG_INFO,"tcp connect %s ok!\n",hostname);
s = av_malloc(sizeof(TCPContext));
if (!s) {
freeaddrinfo(ai);
return AVERROR(ENOMEM);
}
h->priv_data = s;
h->is_streamed = 1;
s->fd = fd;
freeaddrinfo(ai);
return 0;
fail:
if (cur_ai->ai_next) {
/* Retry with the next sockaddr */
cur_ai = cur_ai->ai_next;
if (fd >= 0)
closesocket(fd);
goto restart;
}
fail1:
if (fd >= 0)
closesocket(fd);
freeaddrinfo(ai);
return ret;
}
/* return non zero if error */
static int tcp_open(URLContext *h, const char *uri, int flags)
{
struct addrinfo hints, *ai, *cur_ai;
int port, fd = -1;
TCPContext *s = NULL;
fd_set wfds;
int fd_max, ret;
struct timeval tv;
socklen_t optlen;
char hostname[1024],proto[1024],path[1024];
char portstr[10];
ff_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
&port, path, sizeof(path), uri);
if (strcmp(proto,"tcp") || port <= 0 || port >= 65536)
return AVERROR(EINVAL);
memset(&hints, 0, sizeof(hints));
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
snprintf(portstr, sizeof(portstr), "%d", port);
if (getaddrinfo(hostname, portstr, &hints, &ai))
return AVERROR(EIO);
cur_ai = ai;
restart:
fd = socket(cur_ai->ai_family, cur_ai->ai_socktype, cur_ai->ai_protocol);
if (fd < 0)
goto fail;
ff_socket_nonblock(fd, 1);
redo:
ret = connect(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
if (ret < 0) {
if (ff_neterrno() == FF_NETERROR(EINTR))
goto redo;
if (ff_neterrno() != FF_NETERROR(EINPROGRESS) &&
ff_neterrno() != FF_NETERROR(EAGAIN))
goto fail;
/* wait until we are connected or until abort */
for(;;) {
if (url_interrupt_cb()) {
ret = AVERROR(EINTR);
goto fail1;
}
fd_max = fd;
FD_ZERO(&wfds);
FD_SET(fd, &wfds);
tv.tv_sec = 0;
tv.tv_usec = 100 * 1000;
ret = select(fd_max + 1, NULL, &wfds, NULL, &tv);
if (ret > 0 && FD_ISSET(fd, &wfds))
break;
}
/* test error */
optlen = sizeof(ret);
getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen);
if (ret != 0)
goto fail;
}
s = av_malloc(sizeof(TCPContext));
if (!s) {
freeaddrinfo(ai);
return AVERROR(ENOMEM);
}
h->priv_data = s;
h->is_streamed = 1;
s->fd = fd;
freeaddrinfo(ai);
return 0;
fail:
if (cur_ai->ai_next) {
/* Retry with the next sockaddr */
cur_ai = cur_ai->ai_next;
if (fd >= 0)
closesocket(fd);
goto restart;
}
ret = AVERROR(EIO);
fail1:
if (fd >= 0)
closesocket(fd);
freeaddrinfo(ai);
return ret;
}
static int sctp_open(URLContext *h, const char *uri, int flags)
{
struct addrinfo *ai, *cur_ai;
struct addrinfo hints = { 0 };
struct sctp_event_subscribe event = { 0 };
struct sctp_initmsg initparams = { 0 };
int port;
int fd = -1;
SCTPContext *s = h->priv_data;
const char *p;
char buf[256];
int ret, listen_socket = 0;
char hostname[1024], proto[1024], path[1024];
char portstr[10];
av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
&port, path, sizeof(path), uri);
if (strcmp(proto, "sctp"))
return AVERROR(EINVAL);
if (port <= 0 || port >= 65536) {
av_log(s, AV_LOG_ERROR, "Port missing in uri\n");
return AVERROR(EINVAL);
}
s->max_streams = 0;
p = strchr(uri, '?');
if (p) {
if (av_find_info_tag(buf, sizeof(buf), "listen", p))
listen_socket = 1;
if (av_find_info_tag(buf, sizeof(buf), "max_streams", p))
s->max_streams = strtol(buf, NULL, 10);
}
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
snprintf(portstr, sizeof(portstr), "%d", port);
ret = getaddrinfo(hostname, portstr, &hints, &ai);
if (ret) {
av_log(h, AV_LOG_ERROR, "Failed to resolve hostname %s: %s\n",
hostname, gai_strerror(ret));
return AVERROR(EIO);
}
cur_ai = ai;
fd = socket(cur_ai->ai_family, SOCK_STREAM, IPPROTO_SCTP);
if (fd < 0)
goto fail;
s->dest_addr_len = sizeof(s->dest_addr);
if (listen_socket) {
int fd1;
ret = bind(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
listen(fd, 100);
fd1 = accept(fd, NULL, NULL);
closesocket(fd);
fd = fd1;
} else
ret = connect(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
ff_socket_nonblock(fd, 1);
event.sctp_data_io_event = 1;
/* TODO: Subscribe to more event types and handle them */
if (setsockopt(fd, IPPROTO_SCTP, SCTP_EVENTS, &event,
sizeof(event)) != 0) {
av_log(h, AV_LOG_ERROR,
"SCTP ERROR: Unable to subscribe to events\n");
goto fail;
}
if (s->max_streams) {
initparams.sinit_max_instreams = s->max_streams;
initparams.sinit_num_ostreams = s->max_streams;
if (setsockopt(fd, IPPROTO_SCTP, SCTP_INITMSG, &initparams,
sizeof(initparams)) < 0)
av_log(h, AV_LOG_ERROR,
"SCTP ERROR: Unable to initialize socket max streams %d\n",
s->max_streams);
}
h->priv_data = s;
h->is_streamed = 1;
s->fd = fd;
freeaddrinfo(ai);
return 0;
fail:
ret = AVERROR(EIO);
freeaddrinfo(ai);
return ret;
}
/* return non zero if error */
static int tcp_open(URLContext *h, const char *uri, int flags)
{
struct addrinfo hints = { 0 }, *ai, *cur_ai;
int port, fd = -1;
TCPContext *s = h->priv_data;
int listen_socket = 0;
const char *p;
char buf[256];
int ret;
socklen_t optlen;
int timeout = 50;
char hostname[1024],proto[1024],path[1024];
char portstr[10];
av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
&port, path, sizeof(path), uri);
if (strcmp(proto,"tcp") || port <= 0 || port >= 65536)
return AVERROR(EINVAL);
p = strchr(uri, '?');
if (p) {
if (av_find_info_tag(buf, sizeof(buf), "listen", p))
listen_socket = 1;
if (av_find_info_tag(buf, sizeof(buf), "timeout", p)) {
timeout = strtol(buf, NULL, 10);
}
}
hints.ai_family = AF_UNSPEC;
hints.ai_socktype = SOCK_STREAM;
snprintf(portstr, sizeof(portstr), "%d", port);
ret = getaddrinfo(hostname, portstr, &hints, &ai);
if (ret) {
av_log(h, AV_LOG_ERROR,
"Failed to resolve hostname %s: %s\n",
hostname, gai_strerror(ret));
return AVERROR(EIO);
}
cur_ai = ai;
restart:
ret = AVERROR(EIO);
fd = socket(cur_ai->ai_family, cur_ai->ai_socktype, cur_ai->ai_protocol);
if (fd < 0)
goto fail;
if (listen_socket) {
int fd1;
int reuse = 1;
setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &reuse, sizeof(reuse));
ret = bind(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
if (ret) {
ret = ff_neterrno();
goto fail1;
}
ret = listen(fd, 1);
if (ret) {
ret = ff_neterrno();
goto fail1;
}
fd1 = accept(fd, NULL, NULL);
if (fd1 < 0) {
ret = ff_neterrno();
goto fail1;
}
closesocket(fd);
fd = fd1;
ff_socket_nonblock(fd, 1);
} else {
redo:
ff_socket_nonblock(fd, 1);
ret = connect(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
}
if (ret < 0) {
struct pollfd p = {fd, POLLOUT, 0};
ret = ff_neterrno();
if (ret == AVERROR(EINTR)) {
if (ff_check_interrupt(&h->interrupt_callback)) {
ret = AVERROR_EXIT;
goto fail1;
}
goto redo;
}
if (ret != AVERROR(EINPROGRESS) &&
ret != AVERROR(EAGAIN))
goto fail;
/* wait until we are connected or until abort */
while(timeout--) {
if (ff_check_interrupt(&h->interrupt_callback)) {
ret = AVERROR_EXIT;
goto fail1;
}
ret = poll(&p, 1, 100);
if (ret > 0)
break;
}
if (ret <= 0) {
ret = AVERROR(ETIMEDOUT);
goto fail;
}
/* test error */
optlen = sizeof(ret);
if (getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen))
ret = AVUNERROR(ff_neterrno());
if (ret != 0) {
char errbuf[100];
ret = AVERROR(ret);
av_strerror(ret, errbuf, sizeof(errbuf));
av_log(h, AV_LOG_ERROR,
"TCP connection to %s:%d failed: %s\n",
hostname, port, errbuf);
goto fail;
}
}
h->is_streamed = 1;
s->fd = fd;
freeaddrinfo(ai);
return 0;
fail:
if (cur_ai->ai_next) {
/* Retry with the next sockaddr */
cur_ai = cur_ai->ai_next;
if (fd >= 0)
closesocket(fd);
goto restart;
}
fail1:
if (fd >= 0)
closesocket(fd);
freeaddrinfo(ai);
return ret;
}
static void new_connection(int server_fd, int is_rtsp)
{
struct sockaddr_in from_addr;
socklen_t len;
int fd;
HTTPContext *c = NULL;
int val;
val = 0;
len = sizeof(from_addr);
memset(&from_addr, 0, len);
fd = accept(server_fd, (struct sockaddr *)&from_addr,
&len);
if (fd < 0) {
http_log("error during accept %s\n", strerror(errno));
return;
}
if (ff_socket_nonblock(fd, 1) < 0)
av_log(NULL, AV_LOG_WARNING, "ff_socket_nonblock failed\n");
#if 0 /*prevent myself close_wait*/
val = 1;
setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, &val, sizeof(val));
val = 5;
setsockopt(fd, IPPROTO_TCP, TCP_KEEPIDLE, &val, sizeof(val));
val = 3;
setsockopt(fd, IPPROTO_TCP, TCP_KEEPINTVL, &val, sizeof(val));
val = 2;
setsockopt(fd, IPPROTO_TCP, TCP_KEEPCNT, &val, sizeof(val));
#endif
if (nb_connections >= nb_max_connections) {
http_send_too_busy_reply(fd);
goto fail;
}
/* add a new connection */
c = av_mallocz(sizeof(HTTPContext));
if (!c)
goto fail;
c->fd = fd;
c->poll_entry = NULL;
c->from_addr = from_addr;
c->buffer_size = IOBUFFER_INIT_SIZE;
c->buffer = av_malloc(c->buffer_size);
if (!c->buffer)
goto fail;
c->next = first_http_ctx;
first_http_ctx = c;
nb_connections++;
c->buffer_ptr = c->buffer;
c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */
c->timeout = cur_time + HTTP_REQUEST_TIMEOUT;
c->state = HTTPSTATE_WAIT_REQUEST;
c->hls_idx = -1;
return;
fail:
if (c) {
av_free(c->buffer);
av_free(c);
}
closesocket(fd);
}
/* return non zero if error */
static int udp_open(URLContext *h, const char *uri, int flags)
{
char hostname[1024], localaddr[1024] = "";
int port, udp_fd = -1, tmp, bind_ret = -1;
UDPContext *s = h->priv_data;
int is_output;
const char *p;
char buf[256];
struct sockaddr_storage my_addr;
socklen_t len;
int reuse_specified = 0;
int i, num_include_sources = 0, num_exclude_sources = 0;
char *include_sources[32], *exclude_sources[32];
h->is_streamed = 1;
h->max_packet_size = 1472;
is_output = !(flags & AVIO_FLAG_READ);
s->ttl = 16;
s->buffer_size = is_output ? UDP_TX_BUF_SIZE : UDP_MAX_PKT_SIZE;
p = strchr(uri, '?');
if (p) {
if (av_find_info_tag(buf, sizeof(buf), "reuse", p)) {
char *endptr = NULL;
s->reuse_socket = strtol(buf, &endptr, 10);
/* assume if no digits were found it is a request to enable it */
if (buf == endptr)
s->reuse_socket = 1;
reuse_specified = 1;
}
if (av_find_info_tag(buf, sizeof(buf), "ttl", p)) {
s->ttl = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "localport", p)) {
s->local_port = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "pkt_size", p)) {
h->max_packet_size = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "buffer_size", p)) {
s->buffer_size = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "connect", p)) {
s->is_connected = strtol(buf, NULL, 10);
}
if (av_find_info_tag(buf, sizeof(buf), "localaddr", p)) {
av_strlcpy(localaddr, buf, sizeof(localaddr));
}
if (av_find_info_tag(buf, sizeof(buf), "sources", p)) {
if (parse_source_list(buf, include_sources, &num_include_sources,
FF_ARRAY_ELEMS(include_sources)))
goto fail;
}
if (av_find_info_tag(buf, sizeof(buf), "block", p)) {
if (parse_source_list(buf, exclude_sources, &num_exclude_sources,
FF_ARRAY_ELEMS(exclude_sources)))
goto fail;
}
}
/* fill the dest addr */
av_url_split(NULL, 0, NULL, 0, hostname, sizeof(hostname), &port, NULL, 0, uri);
/* XXX: fix av_url_split */
if (hostname[0] == '\0' || hostname[0] == '?') {
/* only accepts null hostname if input */
if (!(flags & AVIO_FLAG_READ))
goto fail;
} else {
if (ff_udp_set_remote_url(h, uri) < 0)
goto fail;
}
if ((s->is_multicast || !s->local_port) && (h->flags & AVIO_FLAG_READ))
s->local_port = port;
udp_fd = udp_socket_create(s, &my_addr, &len, localaddr);
if (udp_fd < 0)
goto fail;
/* Follow the requested reuse option, unless it's multicast in which
* case enable reuse unless explicitly disabled.
*/
if (s->reuse_socket || (s->is_multicast && !reuse_specified)) {
s->reuse_socket = 1;
if (setsockopt (udp_fd, SOL_SOCKET, SO_REUSEADDR, &(s->reuse_socket), sizeof(s->reuse_socket)) != 0)
goto fail;
}
/* If multicast, try binding the multicast address first, to avoid
* receiving UDP packets from other sources aimed at the same UDP
* port. This fails on windows. This makes sending to the same address
* using sendto() fail, so only do it if we're opened in read-only mode. */
if (s->is_multicast && !(h->flags & AVIO_FLAG_WRITE)) {
bind_ret = bind(udp_fd,(struct sockaddr *)&s->dest_addr, len);
}
/* bind to the local address if not multicast or if the multicast
* bind failed */
/* the bind is needed to give a port to the socket now */
if (bind_ret < 0 && bind(udp_fd,(struct sockaddr *)&my_addr, len) < 0) {
log_net_error(h, AV_LOG_ERROR, "bind failed");
goto fail;
}
len = sizeof(my_addr);
getsockname(udp_fd, (struct sockaddr *)&my_addr, &len);
s->local_port = udp_port(&my_addr, len);
if (s->is_multicast) {
if (h->flags & AVIO_FLAG_WRITE) {
/* output */
if (udp_set_multicast_ttl(udp_fd, s->ttl, (struct sockaddr *)&s->dest_addr) < 0)
goto fail;
}
if (h->flags & AVIO_FLAG_READ) {
/* input */
if (num_include_sources && num_exclude_sources) {
av_log(h, AV_LOG_ERROR, "Simultaneously including and excluding multicast sources is not supported\n");
goto fail;
}
if (num_include_sources) {
if (udp_set_multicast_sources(udp_fd, (struct sockaddr *)&s->dest_addr, s->dest_addr_len, include_sources, num_include_sources, 1) < 0)
goto fail;
} else {
if (udp_join_multicast_group(udp_fd, (struct sockaddr *)&s->dest_addr) < 0)
goto fail;
}
if (num_exclude_sources) {
if (udp_set_multicast_sources(udp_fd, (struct sockaddr *)&s->dest_addr, s->dest_addr_len, exclude_sources, num_exclude_sources, 0) < 0)
goto fail;
}
}
}
if (is_output) {
/* limit the tx buf size to limit latency */
tmp = s->buffer_size;
if (setsockopt(udp_fd, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp)) < 0) {
log_net_error(h, AV_LOG_ERROR, "setsockopt(SO_SNDBUF)");
goto fail;
}
} else {
/* set udp recv buffer size to the largest possible udp packet size to
* avoid losing data on OSes that set this too low by default. */
tmp = s->buffer_size;
if (setsockopt(udp_fd, SOL_SOCKET, SO_RCVBUF, &tmp, sizeof(tmp)) < 0) {
log_net_error(h, AV_LOG_WARNING, "setsockopt(SO_RECVBUF)");
}
/* make the socket non-blocking */
ff_socket_nonblock(udp_fd, 1);
}
if (s->is_connected) {
if (connect(udp_fd, (struct sockaddr *) &s->dest_addr, s->dest_addr_len)) {
log_net_error(h, AV_LOG_ERROR, "connect");
goto fail;
}
}
for (i = 0; i < num_include_sources; i++)
av_freep(&include_sources[i]);
for (i = 0; i < num_exclude_sources; i++)
av_freep(&exclude_sources[i]);
s->udp_fd = udp_fd;
return 0;
fail:
if (udp_fd >= 0)
closesocket(udp_fd);
for (i = 0; i < num_include_sources; i++)
av_freep(&include_sources[i]);
for (i = 0; i < num_exclude_sources; i++)
av_freep(&exclude_sources[i]);
return AVERROR(EIO);
}
