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"
25 #ifdef HAVE_SYS_SELECT_H
26 #include <sys/select.h>
30 typedef struct TCPContext {
34 /* return non zero if error */
35 static int tcp_open(URLContext *h, const char *uri, int flags)
37 struct sockaddr_in dest_addr;
44 char hostname[1024],proto[1024],path[1024];
46 if(!ff_network_init())
49 url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
50 &port, path, sizeof(path), uri);
51 if (strcmp(proto,"tcp") || port <= 0 || port >= 65536)
52 return AVERROR(EINVAL);
54 dest_addr.sin_family = AF_INET;
55 dest_addr.sin_port = htons(port);
56 if (resolve_host(&dest_addr.sin_addr, hostname) < 0)
59 fd = socket(AF_INET, SOCK_STREAM, 0);
62 ff_socket_nonblock(fd, 1);
65 ret = connect(fd, (struct sockaddr *)&dest_addr,
68 if (ff_neterrno() == FF_NETERROR(EINTR))
70 if (ff_neterrno() != FF_NETERROR(EINPROGRESS) &&
71 ff_neterrno() != FF_NETERROR(EAGAIN))
74 /* wait until we are connected or until abort */
76 if (url_interrupt_cb()) {
84 tv.tv_usec = 100 * 1000;
85 ret = select(fd_max + 1, NULL, &wfds, NULL, &tv);
86 if (ret > 0 && FD_ISSET(fd, &wfds))
92 getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen);
96 s = av_malloc(sizeof(TCPContext));
98 return AVERROR(ENOMEM);
112 static int tcp_read(URLContext *h, uint8_t *buf, int size)
114 TCPContext *s = h->priv_data;
115 int len, fd_max, ret;
120 if (url_interrupt_cb())
121 return AVERROR(EINTR);
124 FD_SET(s->fd, &rfds);
126 tv.tv_usec = 100 * 1000;
127 ret = select(fd_max + 1, &rfds, NULL, NULL, &tv);
128 if (ret > 0 && FD_ISSET(s->fd, &rfds)) {
129 len = recv(s->fd, buf, size, 0);
131 if (ff_neterrno() != FF_NETERROR(EINTR) &&
132 ff_neterrno() != FF_NETERROR(EAGAIN))
133 return AVERROR(errno);
135 } else if (ret < 0) {
141 static int tcp_write(URLContext *h, uint8_t *buf, int size)
143 TCPContext *s = h->priv_data;
144 int ret, size1, fd_max, len;
150 if (url_interrupt_cb())
151 return AVERROR(EINTR);
154 FD_SET(s->fd, &wfds);
156 tv.tv_usec = 100 * 1000;
157 ret = select(fd_max + 1, NULL, &wfds, NULL, &tv);
158 if (ret > 0 && FD_ISSET(s->fd, &wfds)) {
159 len = send(s->fd, buf, size, 0);
161 if (ff_neterrno() != FF_NETERROR(EINTR) &&
162 ff_neterrno() != FF_NETERROR(EAGAIN))
163 return AVERROR(errno);
168 } else if (ret < 0) {
175 static int tcp_close(URLContext *h)
177 TCPContext *s = h->priv_data;
184 URLProtocol tcp_protocol = {