mirror of https://github.com/FFmpeg/FFmpeg.git
Originally committed as revision 17159 to svn://svn.ffmpeg.org/ffmpeg/trunkpull/126/head
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5 changed files with 132 additions and 1 deletions
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/*
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* Gopher protocol |
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* |
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* Copyright (c) 2009 Toshimitsu Kimura |
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* |
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* based on libavformat/http.c, Copyright (c) 2000, 2001 Fabrice Bellard |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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#include "libavutil/avstring.h" |
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#include "avformat.h" |
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#include "network.h" |
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typedef struct { |
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URLContext *hd; |
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} GopherContext; |
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static int gopher_write(URLContext *h, uint8_t *buf, int size) |
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{ |
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GopherContext *s = h->priv_data; |
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return url_write(s->hd, buf, size); |
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} |
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static int gopher_connect(URLContext *h, const char *path) |
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{ |
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char buffer[1024]; |
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if (!*path) return AVERROR(EINVAL); |
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switch (*++path) { |
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case '5': |
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case '9': |
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path = strchr(path, '/'); |
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if (!path) return AVERROR(EINVAL); |
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break; |
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default: |
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av_log(NULL, AV_LOG_WARNING, |
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"Gopher protocol type '%c' not supported yet!\n", |
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*path); |
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return AVERROR(EINVAL); |
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} |
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/* send gopher sector */ |
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snprintf(buffer, sizeof(buffer), "%s\r\n", path); |
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if (gopher_write(h, buffer, strlen(buffer)) < 0) |
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return AVERROR(EIO); |
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return 0; |
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} |
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static int gopher_close(URLContext *h) |
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{ |
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GopherContext *s = h->priv_data; |
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if (s->hd) { |
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url_close(s->hd); |
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s->hd = NULL; |
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} |
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av_freep(&h->priv_data); |
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return 0; |
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} |
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static int gopher_open(URLContext *h, const char *uri, int flags) |
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{ |
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GopherContext *s; |
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char hostname[1024], auth[1024], path[1024], buf[1024]; |
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int port, err; |
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h->is_streamed = 1; |
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s = av_malloc(sizeof(GopherContext)); |
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if (!s) { |
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return AVERROR(ENOMEM); |
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} |
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h->priv_data = s; |
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/* needed in any case to build the host string */ |
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url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port, |
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path, sizeof(path), uri); |
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if (port < 0) |
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port = 70; |
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snprintf(buf, sizeof(buf), "tcp://%s:%d", hostname, port); |
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s->hd = NULL; |
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err = url_open(&s->hd, buf, URL_RDWR); |
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if (err < 0) |
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goto fail; |
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if ((err = gopher_connect(h, path)) < 0) |
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goto fail; |
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return 0; |
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fail: |
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gopher_close(h); |
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return err; |
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} |
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static int gopher_read(URLContext *h, uint8_t *buf, int size) |
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{ |
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GopherContext *s = h->priv_data; |
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int len = url_read(s->hd, buf, size); |
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return len; |
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} |
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URLProtocol gopher_protocol = { |
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"gopher", |
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gopher_open, |
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gopher_read, |
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gopher_write, |
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NULL, /*seek*/ |
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gopher_close, |
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}; |
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