4 * Copyright (c) 2009 Toshimitsu Kimura
6 * based on libavformat/http.c, Copyright (c) 2000, 2001 Fabrice Bellard
8 * This file is part of FFmpeg.
10 * FFmpeg is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
15 * FFmpeg is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with FFmpeg; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
25 #include "libavutil/avstring.h"
31 typedef struct GopherContext {
35 static int gopher_write(URLContext *h, const uint8_t *buf, int size)
37 GopherContext *s = h->priv_data;
38 return ffurl_write(s->hd, buf, size);
41 static int gopher_connect(URLContext *h, const char *path)
45 if (!*path) return AVERROR(EINVAL);
49 path = strchr(path, '/');
50 if (!path) return AVERROR(EINVAL);
53 av_log(h, AV_LOG_WARNING,
54 "Gopher protocol type '%c' not supported yet!\n",
56 return AVERROR(EINVAL);
59 /* send gopher sector */
60 snprintf(buffer, sizeof(buffer), "%s\r\n", path);
62 if (gopher_write(h, buffer, strlen(buffer)) < 0)
68 static int gopher_close(URLContext *h)
70 GopherContext *s = h->priv_data;
78 static int gopher_open(URLContext *h, const char *uri, int flags)
80 GopherContext *s = h->priv_data;
81 char hostname[1024], auth[1024], path[1024], buf[1024];
86 /* needed in any case to build the host string */
87 av_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
88 path, sizeof(path), uri);
93 ff_url_join(buf, sizeof(buf), "tcp", NULL, hostname, port, NULL);
96 err = ffurl_open(&s->hd, buf, AVIO_FLAG_READ_WRITE,
97 &h->interrupt_callback, NULL);
101 if ((err = gopher_connect(h, path)) < 0)
109 static int gopher_read(URLContext *h, uint8_t *buf, int size)
111 GopherContext *s = h->priv_data;
112 int len = ffurl_read(s->hd, buf, size);
117 URLProtocol ff_gopher_protocol = {
119 .url_open = gopher_open,
120 .url_read = gopher_read,
121 .url_write = gopher_write,
122 .url_close = gopher_close,
123 .priv_data_size = sizeof(GopherContext),
124 .flags = URL_PROTOCOL_FLAG_NETWORK,