ffmpeg-2.1.1: move directory
git-svn-id: svn://kolibrios.org@6148 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
229
contrib/sdk/sources/ffmpeg/ffmpeg-2.1/libavformat/libssh.c
Normal file
229
contrib/sdk/sources/ffmpeg/ffmpeg-2.1/libavformat/libssh.c
Normal file
@@ -0,0 +1,229 @@
|
||||
/*
|
||||
* Copyright (c) 2013 Lukasz Marek <lukasz.m.luki@gmail.com>
|
||||
*
|
||||
* This file is part of FFmpeg.
|
||||
*
|
||||
* FFmpeg 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.
|
||||
*
|
||||
* FFmpeg 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 FFmpeg; if not, write to the Free Software
|
||||
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
||||
*/
|
||||
|
||||
#include <fcntl.h>
|
||||
#include <libssh/sftp.h>
|
||||
#include "libavutil/avstring.h"
|
||||
#include "libavutil/opt.h"
|
||||
#include "avformat.h"
|
||||
#include "internal.h"
|
||||
#include "url.h"
|
||||
|
||||
typedef struct {
|
||||
const AVClass *class;
|
||||
ssh_session session;
|
||||
sftp_session sftp;
|
||||
sftp_file file;
|
||||
int64_t filesize;
|
||||
int rw_timeout;
|
||||
int trunc;
|
||||
} LIBSSHContext;
|
||||
|
||||
static int libssh_close(URLContext *h)
|
||||
{
|
||||
LIBSSHContext *s = h->priv_data;
|
||||
if (s->file)
|
||||
sftp_close(s->file);
|
||||
if (s->sftp)
|
||||
sftp_free(s->sftp);
|
||||
if (s->session) {
|
||||
ssh_disconnect(s->session);
|
||||
ssh_free(s->session);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int libssh_open(URLContext *h, const char *url, int flags)
|
||||
{
|
||||
static const int verbosity = SSH_LOG_NOLOG;
|
||||
LIBSSHContext *s = h->priv_data;
|
||||
char proto[10], path[MAX_URL_SIZE], hostname[1024], credencials[1024];
|
||||
int port = 22, access, ret;
|
||||
long timeout = s->rw_timeout * 1000;
|
||||
const char *user = NULL, *pass = NULL;
|
||||
char *end = NULL;
|
||||
sftp_attributes stat;
|
||||
|
||||
av_url_split(proto, sizeof(proto),
|
||||
credencials, sizeof(credencials),
|
||||
hostname, sizeof(hostname),
|
||||
&port,
|
||||
path, sizeof(path),
|
||||
url);
|
||||
|
||||
if (port <= 0 || port > 65535)
|
||||
port = 22;
|
||||
|
||||
if (!(s->session = ssh_new())) {
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
user = av_strtok(credencials, ":", &end);
|
||||
pass = av_strtok(end, ":", &end);
|
||||
ssh_options_set(s->session, SSH_OPTIONS_HOST, hostname);
|
||||
ssh_options_set(s->session, SSH_OPTIONS_PORT, &port);
|
||||
ssh_options_set(s->session, SSH_OPTIONS_LOG_VERBOSITY, &verbosity);
|
||||
if (timeout > 0)
|
||||
ssh_options_set(s->session, SSH_OPTIONS_TIMEOUT_USEC, &timeout);
|
||||
if (user)
|
||||
ssh_options_set(s->session, SSH_OPTIONS_USER, user);
|
||||
|
||||
if (ssh_connect(s->session) != SSH_OK) {
|
||||
av_log(h, AV_LOG_ERROR, "Connection failed. %s\n", ssh_get_error(s->session));
|
||||
ret = AVERROR(EIO);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (pass && ssh_userauth_password(s->session, NULL, pass) != SSH_AUTH_SUCCESS) {
|
||||
av_log(h, AV_LOG_ERROR, "Error authenticating with password: %s\n", ssh_get_error(s->session));
|
||||
ret = AVERROR(EACCES);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (!(s->sftp = sftp_new(s->session))) {
|
||||
av_log(h, AV_LOG_ERROR, "SFTP session creation failed: %s\n", ssh_get_error(s->session));
|
||||
ret = AVERROR(ENOMEM);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (sftp_init(s->sftp) != SSH_OK) {
|
||||
av_log(h, AV_LOG_ERROR, "Error initializing sftp session: %s\n", ssh_get_error(s->session));
|
||||
ret = AVERROR(EIO);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if ((flags & AVIO_FLAG_WRITE) && (flags & AVIO_FLAG_READ)) {
|
||||
access = O_CREAT | O_RDWR;
|
||||
if (s->trunc)
|
||||
access |= O_TRUNC;
|
||||
} else if (flags & AVIO_FLAG_WRITE) {
|
||||
access = O_CREAT | O_WRONLY;
|
||||
if (s->trunc)
|
||||
access |= O_TRUNC;
|
||||
} else {
|
||||
access = O_RDONLY;
|
||||
}
|
||||
|
||||
if (!(s->file = sftp_open(s->sftp, path, access, S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH))) {
|
||||
av_log(h, AV_LOG_ERROR, "Error opening sftp file: %s\n", ssh_get_error(s->session));
|
||||
ret = AVERROR(EIO);
|
||||
goto fail;
|
||||
}
|
||||
|
||||
if (!(stat = sftp_fstat(s->file))) {
|
||||
av_log(h, AV_LOG_WARNING, "Cannot stat remote file %s.\n", path);
|
||||
s->filesize = -1;
|
||||
} else {
|
||||
s->filesize = stat->size;
|
||||
sftp_attributes_free(stat);
|
||||
}
|
||||
|
||||
return 0;
|
||||
|
||||
fail:
|
||||
libssh_close(h);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int64_t libssh_seek(URLContext *h, int64_t pos, int whence)
|
||||
{
|
||||
LIBSSHContext *s = h->priv_data;
|
||||
int64_t newpos;
|
||||
|
||||
if (s->filesize == -1 && (whence == AVSEEK_SIZE || whence == SEEK_END)) {
|
||||
av_log(h, AV_LOG_ERROR, "Error during seeking.\n");
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
|
||||
switch(whence) {
|
||||
case AVSEEK_SIZE:
|
||||
return s->filesize;
|
||||
case SEEK_SET:
|
||||
newpos = pos;
|
||||
break;
|
||||
case SEEK_CUR:
|
||||
newpos = sftp_tell64(s->file);
|
||||
break;
|
||||
case SEEK_END:
|
||||
newpos = s->filesize + pos;
|
||||
break;
|
||||
default:
|
||||
return AVERROR(EINVAL);
|
||||
}
|
||||
|
||||
if (sftp_seek64(s->file, newpos)) {
|
||||
av_log(h, AV_LOG_ERROR, "Error during seeking.\n");
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
|
||||
return newpos;
|
||||
}
|
||||
|
||||
static int libssh_read(URLContext *h, unsigned char *buf, int size)
|
||||
{
|
||||
LIBSSHContext *s = h->priv_data;
|
||||
int bytes_read;
|
||||
|
||||
if ((bytes_read = sftp_read(s->file, buf, size)) < 0) {
|
||||
av_log(h, AV_LOG_ERROR, "Read error.\n");
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
return bytes_read;
|
||||
}
|
||||
|
||||
static int libssh_write(URLContext *h, const unsigned char *buf, int size)
|
||||
{
|
||||
LIBSSHContext *s = h->priv_data;
|
||||
int bytes_written;
|
||||
|
||||
if ((bytes_written = sftp_write(s->file, buf, size)) < 0) {
|
||||
av_log(h, AV_LOG_ERROR, "Write error.\n");
|
||||
return AVERROR(EIO);
|
||||
}
|
||||
return bytes_written;
|
||||
}
|
||||
|
||||
#define OFFSET(x) offsetof(LIBSSHContext, x)
|
||||
#define D AV_OPT_FLAG_DECODING_PARAM
|
||||
#define E AV_OPT_FLAG_ENCODING_PARAM
|
||||
static const AVOption options[] = {
|
||||
{"timeout", "set timeout of socket I/O operations", OFFSET(rw_timeout), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, D|E },
|
||||
{"truncate", "Truncate existing files on write", OFFSET(trunc), AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, E },
|
||||
{NULL}
|
||||
};
|
||||
|
||||
static const AVClass libssh_context_class = {
|
||||
.class_name = "libssh",
|
||||
.item_name = av_default_item_name,
|
||||
.option = options,
|
||||
.version = LIBAVUTIL_VERSION_INT,
|
||||
};
|
||||
|
||||
URLProtocol ff_libssh_protocol = {
|
||||
.name = "sftp",
|
||||
.url_open = libssh_open,
|
||||
.url_read = libssh_read,
|
||||
.url_write = libssh_write,
|
||||
.url_seek = libssh_seek,
|
||||
.url_close = libssh_close,
|
||||
.priv_data_size = sizeof(LIBSSHContext),
|
||||
.priv_data_class = &libssh_context_class,
|
||||
.flags = URL_PROTOCOL_FLAG_NETWORK,
|
||||
};
|
||||
Reference in New Issue
Block a user