/*
* TCP protocol
- * Copyright (c) 2002 Fabrice Bellard.
+ * Copyright (c) 2002 Fabrice Bellard
*
- * This library is free software; you can redistribute it and/or
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This library is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "avformat.h"
+#include "libavutil/parseutils.h"
#include <unistd.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <netinet/in.h>
-#ifndef __BEOS__
-# include <arpa/inet.h>
-#else
-# include "barpainet.h"
+#include "internal.h"
+#include "network.h"
+#include "os_support.h"
+#include "url.h"
+#if HAVE_POLL_H
+#include <poll.h>
#endif
-#include <netdb.h>
+#include <sys/time.h>
typedef struct TCPContext {
int fd;
} TCPContext;
-/* resolve host with also IP address parsing */
-int resolve_host(struct in_addr *sin_addr, const char *hostname)
-{
- struct hostent *hp;
-
- if ((inet_aton(hostname, sin_addr)) == 0) {
- hp = gethostbyname(hostname);
- if (!hp)
- return -1;
- memcpy (sin_addr, hp->h_addr, sizeof(struct in_addr));
- }
- return 0;
-}
-
/* return non zero if error */
static int tcp_open(URLContext *h, const char *uri, int flags)
{
- struct sockaddr_in dest_addr;
- char hostname[1024], *q;
+ struct addrinfo hints, *ai, *cur_ai;
int port, fd = -1;
- TCPContext *s;
+ 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];
- s = av_malloc(sizeof(TCPContext));
- if (!s)
- return -ENOMEM;
- h->priv_data = s;
- p = uri;
- if (!strstart(p, "tcp://", &p))
- goto fail;
- q = hostname;
- while (*p != ':' && *p != '/' && *p != '\0') {
- if ((q - hostname) < sizeof(hostname) - 1)
- *q++ = *p;
- p++;
+ 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;
}
- *q = '\0';
- if (*p != ':')
- goto fail;
- p++;
- port = strtoul(p, (char **)&p, 10);
- if (port <= 0 || port >= 65536)
- goto fail;
-
- dest_addr.sin_family = AF_INET;
- dest_addr.sin_port = htons(port);
- if (resolve_host(&dest_addr.sin_addr, hostname) < 0)
- goto fail;
+ 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;
- fd = socket(PF_INET, SOCK_STREAM, 0);
+ restart:
+ fd = socket(cur_ai->ai_family, cur_ai->ai_socktype, cur_ai->ai_protocol);
if (fd < 0)
goto fail;
- if (connect(fd, (struct sockaddr *)&dest_addr,
- sizeof(dest_addr)) < 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:
+ ret = connect(fd, cur_ai->ai_addr, cur_ai->ai_addrlen);
+ }
+
+ ff_socket_nonblock(fd, 1);
+
+ if (ret < 0) {
+ int timeout=50;
+ 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) {
+ 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)
- close(fd);
- av_free(s);
- return -EIO;
+ closesocket(fd);
+ freeaddrinfo(ai);
+ return ret;
}
-static int tcp_read(URLContext *h, UINT8 *buf, int size)
+static int tcp_read(URLContext *h, uint8_t *buf, int size)
{
TCPContext *s = h->priv_data;
- int size1, len;
-
- size1 = size;
- while (size > 0) {
-#ifdef CONFIG_BEOS_NETSERVER
- len = recv (s->fd, buf, size, 0);
-#else
- len = read (s->fd, buf, size);
-#endif
- if (len < 0) {
- if (errno != EINTR && errno != EAGAIN)
-#ifdef __BEOS__
- return errno;
-#else
- return -errno;
-#endif
- else
- continue;
- } else if (len == 0) {
- break;
- }
- size -= len;
- buf += len;
+ int ret;
+
+ if (!(h->flags & AVIO_FLAG_NONBLOCK)) {
+ ret = ff_network_wait_fd(s->fd, 0);
+ if (ret < 0)
+ return ret;
}
- return size1 - size;
+ ret = recv(s->fd, buf, size, 0);
+ return ret < 0 ? ff_neterrno() : ret;
}
-static int tcp_write(URLContext *h, UINT8 *buf, int size)
+static int tcp_write(URLContext *h, const uint8_t *buf, int size)
{
TCPContext *s = h->priv_data;
- int ret, size1;
-
- size1 = size;
- while (size > 0) {
-#ifdef CONFIG_BEOS_NETSERVER
- ret = send (s->fd, buf, size, 0);
-#else
- ret = write (s->fd, buf, size);
-#endif
- if (ret < 0 && errno != EINTR && errno != EAGAIN)
-#ifdef __BEOS__
- return errno;
-#else
- return -errno;
-#endif
- size -= ret;
- buf += ret;
+ int ret;
+
+ if (!(h->flags & AVIO_FLAG_NONBLOCK)) {
+ ret = ff_network_wait_fd(s->fd, 1);
+ if (ret < 0)
+ return ret;
}
- return size1 - size;
+ ret = send(s->fd, buf, size, 0);
+ return ret < 0 ? ff_neterrno() : ret;
}
static int tcp_close(URLContext *h)
{
TCPContext *s = h->priv_data;
-#ifdef CONFIG_BEOS_NETSERVER
closesocket(s->fd);
-#else
- close(s->fd);
-#endif
av_free(s);
return 0;
}
-URLProtocol tcp_protocol = {
- "tcp",
- tcp_open,
- tcp_read,
- tcp_write,
- NULL, /* seek */
- tcp_close,
+static int tcp_get_file_handle(URLContext *h)
+{
+ TCPContext *s = h->priv_data;
+ return s->fd;
+}
+
+URLProtocol ff_tcp_protocol = {
+ .name = "tcp",
+ .url_open = tcp_open,
+ .url_read = tcp_read,
+ .url_write = tcp_write,
+ .url_close = tcp_close,
+ .url_get_file_handle = tcp_get_file_handle,
};