transmission/cli/transmissioncli.c

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/******************************************************************************
* $Id$
*
* Copyright (c) 2005-2006 Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <getopt.h>
#include <signal.h>
#include <libtransmission/transmission.h>
#include <libtransmission/makemeta.h>
#include <libtransmission/metainfo.h> /* tr_metainfoFree */
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#include <libtransmission/utils.h> /* tr_wait */
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/* macro to shut up "unused parameter" warnings */
#ifdef __GNUC__
#define UNUSED __attribute__((unused))
#else
#define UNUSED
#endif
const char * USAGE =
"Usage: %s [-car[-m]] [-dfginpsuv] [-h] file.torrent [output-dir]\n\n"
"Options:\n"
" -h, --help Print this help and exit\n"
" -i, --info Print metainfo and exit\n"
" -s, --scrape Print counts of seeders/leechers and exit\n"
" -V, --version Print the version number and exit\n"
" -c, --create-from <file> Create torrent from the specified source file.\n"
" -a, --announce <url> Used in conjunction with -c.\n"
" -g, --config-dir <path> Where to look for configuration files\n"
" -r, --private Used in conjunction with -c.\n"
" -m, --comment <text> Adds an optional comment when creating a torrent.\n"
" -d, --download <int> Max download rate (-1 = no limit, default = -1)\n"
" -f, --finish <script> Command you wish to run on completion\n"
" -n --nat-traversal Attempt NAT traversal using NAT-PMP or UPnP IGD\n"
" -p, --port <int> Port we should listen on (default = %d)\n"
" -u, --upload <int> Maximum upload rate (-1 = no limit, default = 20)\n"
" -v, --verbose <int> Verbose level (0 to 2, default = 0)\n"
" -y, --recheck Force a recheck of the torrent data\n";
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static int showHelp = 0;
static int showInfo = 0;
static int showScrape = 0;
static int showVersion = 0;
static int isPrivate = 0;
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static int verboseLevel = 0;
static int bindPort = TR_DEFAULT_PORT;
static int uploadLimit = 20;
static int downloadLimit = -1;
static char * torrentPath = NULL;
static char * savePath = ".";
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static int natTraversal = 0;
static int recheckData = 0;
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static sig_atomic_t gotsig = 0;
static sig_atomic_t manualUpdate = 0;
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static char * finishCall = NULL;
static char * announce = NULL;
static char * configdir = NULL;
static char * sourceFile = NULL;
static char * comment = NULL;
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static int parseCommandLine ( int argc, char ** argv );
static void sigHandler ( int signal );
static char *
getStringRatio( float ratio )
{
static char string[20];
if( ratio == TR_RATIO_NA )
return "n/a";
snprintf( string, sizeof string, "%.3f", ratio );
return string;
}
#define LINEWIDTH 80
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static void
torrentStateChanged( tr_torrent * torrent UNUSED,
cp_status_t status UNUSED,
void * user_data UNUSED )
{
system( finishCall );
}
int
main( int argc, char ** argv )
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{
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int i, error;
tr_handle * h;
tr_ctor * ctor;
tr_torrent * tor = NULL;
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printf( "Transmission %s - http://www.transmissionbt.com/\n",
LONG_VERSION_STRING );
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/* Get options */
if( parseCommandLine( argc, argv ) )
{
printf( USAGE, argv[0], TR_DEFAULT_PORT );
return EXIT_FAILURE;
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}
if( showVersion )
return EXIT_SUCCESS;
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if( showHelp )
{
printf( USAGE, argv[0], TR_DEFAULT_PORT );
return EXIT_SUCCESS;
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}
if( bindPort < 1 || bindPort > 65535 )
{
printf( "Invalid port '%d'\n", bindPort );
return EXIT_FAILURE;
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}
/* don't bind the port if we're just running the CLI
* to get metainfo or to create a torrent */
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if( showInfo || showScrape || ( sourceFile != NULL ) )
bindPort = -1;
if( configdir == NULL )
configdir = strdup( tr_getDefaultConfigDir( ) );
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/* Initialize libtransmission */
h = tr_initFull( configdir,
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"cli", /* tag */
1, /* pex enabled */
natTraversal, /* nat enabled */
bindPort, /* public port */
TR_ENCRYPTION_PREFERRED, /* encryption mode */
uploadLimit >= 0, /* use upload speed limit? */
uploadLimit, /* upload speed limit */
downloadLimit >= 0, /* use download speed limit? */
downloadLimit, /* download speed limit */
TR_DEFAULT_GLOBAL_PEER_LIMIT,
verboseLevel + 1, /* messageLevel */
0, /* is message queueing enabled? */
0, /* use the blocklist? */
TR_DEFAULT_PEER_SOCKET_TOS );
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if( sourceFile && *sourceFile ) /* creating a torrent */
{
int err;
tr_metainfo_builder * builder = tr_metaInfoBuilderCreate( h, sourceFile );
tr_makeMetaInfo( builder, torrentPath, announce, comment, isPrivate );
while( !builder->isDone ) {
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tr_wait( 1000 );
printf( "." );
}
err = builder->result;
tr_metaInfoBuilderFree( builder );
return err;
}
ctor = tr_ctorNew( h );
tr_ctorSetMetainfoFromFile( ctor, torrentPath );
tr_ctorSetPaused( ctor, TR_FORCE, 0 );
tr_ctorSetDestination( ctor, TR_FORCE, savePath );
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if( showInfo )
{
tr_info info;
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if( !tr_torrentParse( h, ctor, &info ) )
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{
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int prevTier = -1;
tr_file_index_t ff;
printf( "hash:\t" );
for( i=0; i<SHA_DIGEST_LENGTH; ++i )
printf( "%02x", info.hash[i] );
printf( "\n" );
printf( "name:\t%s\n", info.name );
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for( i=0; i<info.trackerCount; ++i ) {
if( prevTier != info.trackers[i].tier ) {
prevTier = info.trackers[i].tier;
printf( "\ntracker tier #%d:\n", (prevTier+1) );
}
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printf( "\tannounce:\t%s\n", info.trackers[i].announce );
}
printf( "size:\t%"PRIu64" (%"PRIu64" * %d + %"PRIu64")\n",
info.totalSize, info.totalSize / info.pieceSize,
info.pieceSize, info.totalSize % info.pieceSize );
if( info.comment[0] )
printf( "comment:\t%s\n", info.comment );
if( info.creator[0] )
printf( "creator:\t%s\n", info.creator );
if( info.isPrivate )
printf( "private flag set\n" );
printf( "file(s):\n" );
for( ff=0; ff<info.fileCount; ++ff )
printf( "\t%s (%"PRIu64")\n", info.files[ff].name, info.files[ff].length );
tr_metainfoFree( &info );
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}
tr_ctorFree( ctor );
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goto cleanup;
}
tor = tr_torrentNew( h, ctor, &error );
tr_ctorFree( ctor );
if( tor == NULL )
{
printf( "Failed opening torrent file `%s'\n", torrentPath );
tr_close( h );
return EXIT_FAILURE;
}
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if( showScrape )
{
const struct tr_stat * stats;
const uint64_t start = tr_date( );
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printf( "Scraping, Please wait...\n" );
do
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{
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stats = tr_torrentStat( tor );
if( !stats || tr_date() - start > 20000 )
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{
printf( "Scrape failed.\n" );
goto cleanup;
}
tr_wait( 2000 );
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}
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while( stats->completedFromTracker == -1 || stats->leechers == -1 || stats->seeders == -1 );
printf( "%d seeder(s), %d leecher(s), %d download(s).\n",
stats->seeders, stats->leechers, stats->completedFromTracker );
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goto cleanup;
}
signal( SIGINT, sigHandler );
signal( SIGHUP, sigHandler );
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tr_torrentSetStatusCallback( tor, torrentStateChanged, NULL );
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tr_torrentStart( tor );
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for( ;; )
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{
char string[LINEWIDTH];
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int chars = 0;
const struct tr_stat * s;
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tr_wait( 1000 );
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if( gotsig )
{
gotsig = 0;
tr_torrentStop( tor );
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tr_natTraversalEnable( h, 0 );
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}
if( manualUpdate )
{
manualUpdate = 0;
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if ( !tr_torrentCanManualUpdate( tor ) )
fprintf( stderr, "\rReceived SIGHUP, but can't send a manual update now\n" );
else {
fprintf( stderr, "\rReceived SIGHUP: manual update scheduled\n" );
tr_manualUpdate( tor );
}
}
if( recheckData )
{
recheckData = 0;
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tr_torrentVerify( tor );
}
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s = tr_torrentStat( tor );
if( s->status & TR_STATUS_CHECK_WAIT )
{
chars = snprintf( string, sizeof string,
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"Waiting to verify local files..." );
}
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else if( s->status & TR_STATUS_CHECK )
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{
chars = snprintf( string, sizeof string,
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"Verifying local files... %.2f%%, found %.2f%% valid", 100 * s->recheckProgress, 100.0 * s->percentDone );
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}
else if( s->status & TR_STATUS_DOWNLOAD )
{
chars = snprintf( string, sizeof string,
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"Progress: %.2f %%, %d peer%s, dl from %d (%.2f KB/s), "
"ul to %d (%.2f KB/s) [%s]", 100.0 * s->percentDone,
s->peersConnected, ( s->peersConnected == 1 ) ? "" : "s",
s->peersSendingToUs, s->rateDownload,
s->peersGettingFromUs, s->rateUpload,
getStringRatio(s->ratio) );
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}
else if( s->status & TR_STATUS_SEED )
{
chars = snprintf( string, sizeof string,
"Seeding, uploading to %d of %d peer(s), %.2f KB/s [%s]",
s->peersGettingFromUs, s->peersConnected,
s->rateUpload, getStringRatio(s->ratio) );
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}
else if( s->status & TR_STATUS_STOPPED )
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{
break;
}
if( ( signed )sizeof string > chars )
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{
memset( &string[chars], ' ', sizeof string - 1 - chars );
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}
string[sizeof string - 1] = '\0';
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fprintf( stderr, "\r%s", string );
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if( s->error )
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{
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fprintf( stderr, "\n%s\n", s->errorString );
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}
else if( verboseLevel > 0 )
{
fprintf( stderr, "\n" );
}
}
fprintf( stderr, "\n" );
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/* Try for 5 seconds to delete any port mappings for nat traversal */
tr_natTraversalEnable( h, 0 );
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for( i = 0; i < 10; i++ )
{
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const tr_handle_status * hstat = tr_handleStatus( h );
if( TR_NAT_TRAVERSAL_UNMAPPED == hstat->natTraversalStatus )
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{
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/* Port mappings were deleted */
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break;
}
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tr_wait( 500 );
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}
cleanup:
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tr_torrentClose( tor );
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tr_close( h );
return EXIT_SUCCESS;
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}
static int
parseCommandLine( int argc, char ** argv )
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{
for( ;; )
{
static const struct option long_options[] = {
{ "announce", required_argument, NULL, 'a' },
{ "create-from", required_argument, NULL, 'c' },
{ "download", required_argument, NULL, 'd' },
{ "finish", required_argument, NULL, 'f' },
{ "config-dir", required_argument, NULL, 'g' },
{ "help", no_argument, NULL, 'h' },
{ "info", no_argument, NULL, 'i' },
{ "comment", required_argument, NULL, 'm' },
{ "nat-traversal", no_argument, NULL, 'n' },
{ "output-dir", required_argument, NULL, 'o' },
{ "port", required_argument, NULL, 'p' },
{ "private", no_argument, NULL, 'r' },
{ "scrape", no_argument, NULL, 's' },
{ "upload", required_argument, NULL, 'u' },
{ "verbose", required_argument, NULL, 'v' },
{ "version", no_argument, NULL, 'V' },
{ "recheck", no_argument, NULL, 'y' },
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{ 0, 0, 0, 0} };
int optind = 0;
int c = getopt_long( argc, argv,
"a:c:d:f:g:him:no:p:rsu:v:Vy",
long_options, &optind );
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if( c < 0 )
{
break;
}
switch( c )
{
case 'a': announce = optarg; break;
case 'c': sourceFile = optarg; break;
case 'd': downloadLimit = atoi( optarg ); break;
case 'f': finishCall = optarg; break;
case 'g': configdir = strdup( optarg ); break;
case 'h': showHelp = 1; break;
case 'i': showInfo = 1; break;
case 'm': comment = optarg; break;
case 'n': natTraversal = 1; break;
case 'o': savePath = optarg;
case 'p': bindPort = atoi( optarg ); break;
case 'r': isPrivate = 1; break;
case 's': showScrape = 1; break;
case 'u': uploadLimit = atoi( optarg ); break;
case 'v': verboseLevel = atoi( optarg ); break;
case 'V': showVersion = 1; break;
case 'y': recheckData = 1; break;
default: return 1;
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}
}
if( showHelp || showVersion )
return 0;
if( optind >= argc )
return 1;
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torrentPath = argv[optind];
return 0;
}
static void sigHandler( int signal )
{
switch( signal )
{
case SIGINT:
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gotsig = 1;
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break;
case SIGHUP:
manualUpdate = 1;
break;
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default:
break;
}
}