3 * Copyright (c) 2002 Fabrice Bellard.
5 * This file is part of FFmpeg.
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
24 #include "os_support.h"
27 typedef struct TCPContext {
31 /* return non zero if error */
32 static int tcp_open(URLContext *h, const char *uri, int flags)
34 struct sockaddr_in dest_addr;
41 char hostname[1024],proto[1024],path[1024];
43 if(!ff_network_init())
46 url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
47 &port, path, sizeof(path), uri);
48 if (strcmp(proto,"tcp") || port <= 0 || port >= 65536)
49 return AVERROR(EINVAL);
51 dest_addr.sin_family = AF_INET;
52 dest_addr.sin_port = htons(port);
53 if (resolve_host(&dest_addr.sin_addr, hostname) < 0)
56 fd = socket(AF_INET, SOCK_STREAM, 0);
59 ff_socket_nonblock(fd, 1);
62 ret = connect(fd, (struct sockaddr *)&dest_addr,
65 if (ff_neterrno() == FF_NETERROR(EINTR))
67 if (ff_neterrno() != FF_NETERROR(EINPROGRESS) &&
68 ff_neterrno() != FF_NETERROR(EAGAIN))
71 /* wait until we are connected or until abort */
73 if (url_interrupt_cb()) {
81 tv.tv_usec = 100 * 1000;
82 ret = select(fd_max + 1, NULL, &wfds, NULL, &tv);
83 if (ret > 0 && FD_ISSET(fd, &wfds))
89 getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen);
93 s = av_malloc(sizeof(TCPContext));
95 return AVERROR(ENOMEM);
109 static int tcp_read(URLContext *h, uint8_t *buf, int size)
111 TCPContext *s = h->priv_data;
112 int len, fd_max, ret;
117 if (url_interrupt_cb())
118 return AVERROR(EINTR);
121 FD_SET(s->fd, &rfds);
123 tv.tv_usec = 100 * 1000;
124 ret = select(fd_max + 1, &rfds, NULL, NULL, &tv);
125 if (ret > 0 && FD_ISSET(s->fd, &rfds)) {
126 len = recv(s->fd, buf, size, 0);
128 if (ff_neterrno() != FF_NETERROR(EINTR) &&
129 ff_neterrno() != FF_NETERROR(EAGAIN))
130 return AVERROR(errno);
132 } else if (ret < 0) {
138 static int tcp_write(URLContext *h, uint8_t *buf, int size)
140 TCPContext *s = h->priv_data;
141 int ret, size1, fd_max, len;
147 if (url_interrupt_cb())
148 return AVERROR(EINTR);
151 FD_SET(s->fd, &wfds);
153 tv.tv_usec = 100 * 1000;
154 ret = select(fd_max + 1, NULL, &wfds, NULL, &tv);
155 if (ret > 0 && FD_ISSET(s->fd, &wfds)) {
156 len = send(s->fd, buf, size, 0);
158 if (ff_neterrno() != FF_NETERROR(EINTR) &&
159 ff_neterrno() != FF_NETERROR(EAGAIN))
160 return AVERROR(errno);
165 } else if (ret < 0) {
172 static int tcp_close(URLContext *h)
174 TCPContext *s = h->priv_data;
181 URLProtocol tcp_protocol = {