mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-18 03:19:31 +02:00
c60112f268
Since the libavformat major bump, URLContext contains an AVClass, making it a usable log context. Signed-off-by: Martin Storsjö <martin@martin.st>
130 lines
3.2 KiB
C
130 lines
3.2 KiB
C
/*
|
|
* Gopher protocol
|
|
*
|
|
* Copyright (c) 2009 Toshimitsu Kimura
|
|
*
|
|
* based on libavformat/http.c, Copyright (c) 2000, 2001 Fabrice Bellard
|
|
*
|
|
* This file is part of Libav.
|
|
*
|
|
* Libav is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* Libav is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with Libav; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include "libavutil/avstring.h"
|
|
#include "avformat.h"
|
|
#include "internal.h"
|
|
#include "network.h"
|
|
#include "url.h"
|
|
|
|
typedef struct {
|
|
URLContext *hd;
|
|
} GopherContext;
|
|
|
|
static int gopher_write(URLContext *h, const uint8_t *buf, int size)
|
|
{
|
|
GopherContext *s = h->priv_data;
|
|
return ffurl_write(s->hd, buf, size);
|
|
}
|
|
|
|
static int gopher_connect(URLContext *h, const char *path)
|
|
{
|
|
char buffer[1024];
|
|
|
|
if (!*path) return AVERROR(EINVAL);
|
|
switch (*++path) {
|
|
case '5':
|
|
case '9':
|
|
path = strchr(path, '/');
|
|
if (!path) return AVERROR(EINVAL);
|
|
break;
|
|
default:
|
|
av_log(h, AV_LOG_WARNING,
|
|
"Gopher protocol type '%c' not supported yet!\n",
|
|
*path);
|
|
return AVERROR(EINVAL);
|
|
}
|
|
|
|
/* send gopher sector */
|
|
snprintf(buffer, sizeof(buffer), "%s\r\n", path);
|
|
|
|
if (gopher_write(h, buffer, strlen(buffer)) < 0)
|
|
return AVERROR(EIO);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int gopher_close(URLContext *h)
|
|
{
|
|
GopherContext *s = h->priv_data;
|
|
if (s->hd) {
|
|
ffurl_close(s->hd);
|
|
s->hd = NULL;
|
|
}
|
|
av_freep(&h->priv_data);
|
|
return 0;
|
|
}
|
|
|
|
static int gopher_open(URLContext *h, const char *uri, int flags)
|
|
{
|
|
GopherContext *s;
|
|
char hostname[1024], auth[1024], path[1024], buf[1024];
|
|
int port, err;
|
|
|
|
h->is_streamed = 1;
|
|
|
|
s = av_malloc(sizeof(GopherContext));
|
|
if (!s) {
|
|
return AVERROR(ENOMEM);
|
|
}
|
|
h->priv_data = s;
|
|
|
|
/* needed in any case to build the host string */
|
|
av_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
|
|
path, sizeof(path), uri);
|
|
|
|
if (port < 0)
|
|
port = 70;
|
|
|
|
ff_url_join(buf, sizeof(buf), "tcp", NULL, hostname, port, NULL);
|
|
|
|
s->hd = NULL;
|
|
err = ffurl_open(&s->hd, buf, AVIO_FLAG_READ_WRITE);
|
|
if (err < 0)
|
|
goto fail;
|
|
|
|
if ((err = gopher_connect(h, path)) < 0)
|
|
goto fail;
|
|
return 0;
|
|
fail:
|
|
gopher_close(h);
|
|
return err;
|
|
}
|
|
|
|
static int gopher_read(URLContext *h, uint8_t *buf, int size)
|
|
{
|
|
GopherContext *s = h->priv_data;
|
|
int len = ffurl_read(s->hd, buf, size);
|
|
return len;
|
|
}
|
|
|
|
|
|
URLProtocol ff_gopher_protocol = {
|
|
.name = "gopher",
|
|
.url_open = gopher_open,
|
|
.url_read = gopher_read,
|
|
.url_write = gopher_write,
|
|
.url_close = gopher_close,
|
|
};
|