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
27 typedef struct TCPContext {
31 /* resolve host with also IP address parsing */
32 int resolve_host(struct in_addr *sin_addr, const char *hostname)
36 if ((inet_aton(hostname, sin_addr)) == 0) {
37 hp = gethostbyname(hostname);
40 memcpy (sin_addr, hp->h_addr, sizeof(struct in_addr));
45 /* return non zero if error */
46 static int tcp_open(URLContext *h, const char *uri, int flags)
48 struct sockaddr_in dest_addr;
49 char hostname[1024], *q;
56 char proto[1024],path[1024],tmp[1024]; // PETR: protocol and path strings
58 url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname),
59 &port, path, sizeof(path), uri); // PETR: use url_split
60 if (strcmp(proto,"tcp")) goto fail; // PETR: check protocol
61 if ((q = strchr(hostname,'@'))) { strcpy(tmp,q+1); strcpy(hostname,tmp); } // PETR: take only the part after '@' for tcp protocol
63 s = av_malloc(sizeof(TCPContext));
65 return AVERROR(ENOMEM);
68 if (port <= 0 || port >= 65536)
71 dest_addr.sin_family = AF_INET;
72 dest_addr.sin_port = htons(port);
73 if (resolve_host(&dest_addr.sin_addr, hostname) < 0)
76 fd = socket(AF_INET, SOCK_STREAM, 0);
79 fcntl(fd, F_SETFL, O_NONBLOCK);
82 ret = connect(fd, (struct sockaddr *)&dest_addr,
87 if (errno != EINPROGRESS)
90 /* wait until we are connected or until abort */
92 if (url_interrupt_cb()) {
100 tv.tv_usec = 100 * 1000;
101 ret = select(fd_max + 1, NULL, &wfds, NULL, &tv);
102 if (ret > 0 && FD_ISSET(fd, &wfds))
107 optlen = sizeof(ret);
108 getsockopt (fd, SOL_SOCKET, SO_ERROR, &ret, &optlen);
124 static int tcp_read(URLContext *h, uint8_t *buf, int size)
126 TCPContext *s = h->priv_data;
127 int len, fd_max, ret;
132 if (url_interrupt_cb())
133 return AVERROR(EINTR);
136 FD_SET(s->fd, &rfds);
138 tv.tv_usec = 100 * 1000;
139 ret = select(fd_max + 1, &rfds, NULL, NULL, &tv);
140 if (ret > 0 && FD_ISSET(s->fd, &rfds)) {
141 len = recv(s->fd, buf, size, 0);
143 if (errno != EINTR && errno != EAGAIN)
144 return AVERROR(errno);
146 } else if (ret < 0) {
152 static int tcp_write(URLContext *h, uint8_t *buf, int size)
154 TCPContext *s = h->priv_data;
155 int ret, size1, fd_max, len;
161 if (url_interrupt_cb())
162 return AVERROR(EINTR);
165 FD_SET(s->fd, &wfds);
167 tv.tv_usec = 100 * 1000;
168 ret = select(fd_max + 1, NULL, &wfds, NULL, &tv);
169 if (ret > 0 && FD_ISSET(s->fd, &wfds)) {
170 len = send(s->fd, buf, size, 0);
172 if (errno != EINTR && errno != EAGAIN)
173 return AVERROR(errno);
178 } else if (ret < 0) {
185 static int tcp_close(URLContext *h)
187 TCPContext *s = h->priv_data;
193 URLProtocol tcp_protocol = {