transmission/cli/cli.c

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18 KiB
C
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2006-07-16 19:39:23 +00:00
/******************************************************************************
* $Id$
*
* 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 <signal.h>
#include <libtransmission/transmission.h>
#include <libtransmission/bencode.h>
#include <libtransmission/makemeta.h>
#include <libtransmission/metainfo.h> /* tr_metainfoFree */
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#include <libtransmission/tr-getopt.h>
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#include <libtransmission/utils.h> /* tr_wait */
#include <libtransmission/web.h> /* tr_webRun */
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#define LINEWIDTH 80
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#define MY_NAME "transmission-cli"
static int showInfo = 0;
static int showScrape = 0;
static int isPrivate = 0;
static int verboseLevel = 0;
static int encryptionMode = TR_ENCRYPTION_PREFERRED;
static int peerPort = TR_DEFAULT_PORT;
static int peerSocketTOS = TR_DEFAULT_PEER_SOCKET_TOS;
static int blocklistEnabled = TR_DEFAULT_BLOCKLIST_ENABLED;
static int uploadLimit = 20;
static int downloadLimit = -1;
static int natTraversal = TR_DEFAULT_PORT_FORWARDING_ENABLED;
static int verify = 0;
static sig_atomic_t gotsig = 0;
static sig_atomic_t manualUpdate = 0;
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static const char * torrentPath = NULL;
static const char * downloadDir = NULL;
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static const char * finishCall = NULL;
static const char * announce = NULL;
static const char * configdir = NULL;
static const char * sourceFile = NULL;
static const char * comment = NULL;
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static int parseCommandLine ( int argc, const char ** argv );
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static void sigHandler ( int signal );
static char*
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tr_strlratio( char * buf, double ratio, size_t buflen )
{
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if( (int)ratio == TR_RATIO_NA )
tr_strlcpy( buf, _( "None" ), buflen );
else if( (int)ratio == TR_RATIO_INF )
tr_strlcpy( buf, "Inf", buflen );
else if( ratio < 10.0 )
tr_snprintf( buf, buflen, "%'.2f", ratio );
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else if( ratio < 100.0 )
tr_snprintf( buf, buflen, "%'.1f", ratio );
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else
tr_snprintf( buf, buflen, "%'.0f", ratio );
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return buf;
}
static int
is_rfc2396_alnum( char ch )
{
return ( '0' <= ch && ch <= '9' )
|| ( 'A' <= ch && ch <= 'Z' )
|| ( 'a' <= ch && ch <= 'z' );
}
static void
escape( char * out, const uint8_t * in, int in_len ) /* rfc2396 */
{
const uint8_t *end = in + in_len;
while( in != end )
if( is_rfc2396_alnum(*in) )
*out++ = (char) *in++;
else
out += tr_snprintf( out, 4, "%%%02X", (unsigned int)*in++ );
*out = '\0';
}
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static void
torrentStateChanged( tr_torrent * torrent UNUSED,
cp_status_t status UNUSED,
void * user_data UNUSED )
{
system( finishCall );
}
static int leftToScrape = 0;
static void
scrapeDoneFunc( struct tr_handle * session UNUSED,
long response_code,
const void * response,
size_t response_byte_count,
void * host )
{
tr_benc top, *files;
if( !tr_bencLoad( response, response_byte_count, &top, NULL )
&& tr_bencDictFindDict( &top, "files", &files )
&& files->val.l.count >= 2 )
{
int64_t complete=-1, incomplete=-1, downloaded=-1;
tr_benc * hash = &files->val.l.vals[1];
tr_bencDictFindInt( hash, "complete", &complete );
tr_bencDictFindInt( hash, "incomplete", &incomplete );
tr_bencDictFindInt( hash, "downloaded", &downloaded );
printf( "%4d seeders, %4d leechers, %5d downloads at %s\n",
(int)complete, (int)incomplete, (int)downloaded, (char*)host );
tr_bencFree( &top );
}
else
printf( "unable to parse response (http code %lu) at %s", response_code, (char*)host );
--leftToScrape;
}
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static void
dumpInfo( FILE * out, const tr_info * inf )
{
int i;
int prevTier = -1;
tr_file_index_t ff;
fprintf( out, "hash:\t" );
for( i=0; i<SHA_DIGEST_LENGTH; ++i )
fprintf( out, "%02x", inf->hash[i] );
fprintf( out, "\n" );
fprintf( out, "name:\t%s\n", inf->name );
for( i=0; i<inf->trackerCount; ++i ) {
if( prevTier != inf->trackers[i].tier ) {
prevTier = inf->trackers[i].tier;
fprintf( out, "\ntracker tier #%d:\n", (prevTier+1) );
}
fprintf( out, "\tannounce:\t%s\n", inf->trackers[i].announce );
}
fprintf( out, "size:\t%"PRIu64" (%"PRIu64" * %d + %"PRIu64")\n",
inf->totalSize, inf->totalSize / inf->pieceSize,
inf->pieceSize, inf->totalSize % inf->pieceSize );
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if( inf->comment && *inf->comment )
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fprintf( out, "comment:\t%s\n", inf->comment );
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if( inf->creator && *inf->creator )
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fprintf( out, "creator:\t%s\n", inf->creator );
if( inf->isPrivate )
fprintf( out, "private flag set\n" );
fprintf( out, "file(s):\n" );
for( ff=0; ff<inf->fileCount; ++ff )
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fprintf( out, "\t%s (%"PRIu64")\n", inf->files[ff].name,
inf->files[ff].length );
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}
static void
getStatusStr( const tr_stat * st, char * buf, size_t buflen )
{
if( st->status & TR_STATUS_CHECK_WAIT )
{
tr_snprintf( buf, buflen, "Waiting to verify local files" );
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}
else if( st->status & TR_STATUS_CHECK )
{
tr_snprintf( buf, buflen, "Verifying local files (%.2f%%, %.2f%% valid)",
100 * st->recheckProgress, 100.0 * st->percentDone );
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}
else if( st->status & TR_STATUS_DOWNLOAD )
{
char ratioStr[80];
tr_strlratio( ratioStr, st->ratio, sizeof( ratioStr ) );
tr_snprintf( buf, buflen,
"Progress: %.1f%%, dl from %d of %d peers (%.0f KB/s), "
"ul to %d (%.0f KB/s) [%s]",
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st->percentDone * 100.0,
st->peersSendingToUs,
st->peersConnected,
st->rateDownload,
st->peersGettingFromUs,
st->rateUpload,
ratioStr );
}
else if( st->status & TR_STATUS_SEED )
{
char ratioStr[80];
tr_strlratio( ratioStr, st->ratio, sizeof( ratioStr ) );
tr_snprintf( buf, buflen,
"Seeding, uploading to %d of %d peer(s), %.0f KB/s [%s]",
st->peersGettingFromUs, st->peersConnected,
st->rateUpload, ratioStr );
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}
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else *buf = '\0';
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}
int
main( int argc, char ** argv )
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{
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int error;
tr_handle * h;
tr_ctor * ctor;
tr_torrent * tor = NULL;
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char cwd[MAX_PATH_LENGTH];
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printf( "Transmission %s - http://www.transmissionbt.com/\n",
LONG_VERSION_STRING );
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/* Get options */
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if( parseCommandLine( argc, (const char**)argv ) )
return EXIT_FAILURE;
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/* Check the options for validity */
if( !torrentPath ) {
printf( "No torrent specified!\n" );
return EXIT_FAILURE;
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}
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if( peerPort < 1 || peerPort > 65535 ) {
printf( "Error: Port must between 1 and 65535; got %d\n", peerPort );
return EXIT_FAILURE;
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}
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if( peerSocketTOS < 0 || peerSocketTOS > 255 ) {
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printf( "Error: value must between 0 and 255; got %d\n", peerSocketTOS );
return EXIT_FAILURE;
}
/* 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 ) )
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peerPort = -1;
if( configdir == NULL )
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configdir = tr_getDefaultConfigDir( );
/* if no download directory specified, use cwd instead */
if( !downloadDir ) {
getcwd( cwd, sizeof( cwd ) );
downloadDir = cwd;
}
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/* Initialize libtransmission */
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h = tr_sessionInitFull(
configdir,
"cli", /* tag */
downloadDir, /* where to download torrents */
TR_DEFAULT_PEX_ENABLED,
natTraversal, /* nat enabled */
peerPort,
encryptionMode,
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TR_DEFAULT_LAZY_BITFIELD_ENABLED,
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uploadLimit >= 0,
uploadLimit,
downloadLimit >= 0,
downloadLimit,
TR_DEFAULT_GLOBAL_PEER_LIMIT,
verboseLevel + 1, /* messageLevel */
0, /* is message queueing enabled? */
blocklistEnabled,
peerSocketTOS,
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TR_DEFAULT_RPC_ENABLED,
TR_DEFAULT_RPC_PORT,
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TR_DEFAULT_RPC_ACL,
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FALSE, "fnord", "potzrebie",
TR_DEFAULT_PROXY_ENABLED,
TR_DEFAULT_PROXY,
TR_DEFAULT_PROXY_PORT,
TR_DEFAULT_PROXY_TYPE,
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TR_DEFAULT_PROXY_AUTH_ENABLED,
TR_DEFAULT_PROXY_USERNAME,
TR_DEFAULT_PROXY_PASSWORD );
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if( sourceFile && *sourceFile ) /* creating a torrent */
{
int err;
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tr_metainfo_builder * b = tr_metaInfoBuilderCreate( h, sourceFile );
tr_tracker_info ti;
ti.tier = 0;
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ti.announce = (char*) announce;
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tr_makeMetaInfo( b, torrentPath, &ti, 1, comment, isPrivate );
while( !b->isDone ) {
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tr_wait( 1000 );
printf( "." );
}
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err = b->result;
tr_metaInfoBuilderFree( b );
return err;
}
ctor = tr_ctorNew( h );
tr_ctorSetMetainfoFromFile( ctor, torrentPath );
tr_ctorSetPaused( ctor, TR_FORCE, showScrape );
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tr_ctorSetDownloadDir( ctor, TR_FORCE, downloadDir );
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if( showScrape )
{
tr_info info;
if( !tr_torrentParse( h, ctor, &info ) )
{
int i;
const time_t start = time( NULL );
for( i=0; i<info.trackerCount; ++i )
{
if( info.trackers[i].scrape )
{
const char * scrape = info.trackers[i].scrape;
char escaped[SHA_DIGEST_LENGTH*3 + 1];
char *url, *host;
escape( escaped, info.hash, SHA_DIGEST_LENGTH );
url = tr_strdup_printf( "%s%cinfo_hash=%s",
scrape,
strchr(scrape,'?')?'&':'?',
escaped );
tr_httpParseURL( scrape, -1, &host, NULL, NULL );
++leftToScrape;
tr_webRun( h, url, NULL, scrapeDoneFunc, host );
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tr_free( host );
tr_free( url );
}
}
fprintf( stderr, "scraping %d trackers:\n", leftToScrape );
while( leftToScrape>0 && ((time(NULL)-start)<20) )
tr_wait( 250 );
}
goto cleanup;
}
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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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dumpInfo( stdout, &info );
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 );
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if( !tor )
{
printf( "Failed opening torrent file `%s'\n", torrentPath );
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tr_sessionClose( h );
return EXIT_FAILURE;
}
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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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if( verify ) {
verify = 0;
tr_torrentVerify( tor );
}
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for( ;; )
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{
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char line[LINEWIDTH];
const tr_stat * st;
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tr_wait( 200 );
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if( gotsig ) {
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gotsig = 0;
printf( "\nStopping torrent...\n" );
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tr_torrentStop( tor );
}
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if( manualUpdate ) {
manualUpdate = 0;
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if ( !tr_torrentCanManualUpdate( tor ) )
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fprintf( stderr, "\nReceived SIGHUP, but can't send a manual update now\n" );
else {
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fprintf( stderr, "\nReceived SIGHUP: manual update scheduled\n" );
tr_torrentManualUpdate( tor );
}
}
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st = tr_torrentStat( tor );
if( st->status & TR_STATUS_STOPPED )
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break;
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getStatusStr( st, line, sizeof( line ) );
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printf( "\r%-*s", LINEWIDTH, line );
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if( st->error )
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printf( "\n%s\n", st->errorString );
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}
cleanup:
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printf( "\n" );
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tr_sessionClose( h );
return EXIT_SUCCESS;
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}
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/***
****
****
****
***/
static const char *
getUsage( void )
{
return "A fast and easy BitTorrent client\n"
"\n"
"Usage: "MY_NAME" [options] <torrent-filename>";
}
static const struct tr_option options[] = {
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{ 'a', "announce", "Set the new torrent's announce URL", "a", 1, "<url>" },
{ 'b', "blocklist", "Enable peer blocklists", "b", 0, NULL },
{ 'B', "no-blocklist", "Disable peer blocklists", "B", 0, NULL },
{ 'c', "comment", "Set the new torrent's comment", "c", 1, "<comment>" },
{ 'd', "downlimit", "Set max download speed in KB/s", "d", 1, "<speed>" },
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{ 'D', "no-downlimit", "Don't limit the download speed", "D", 0, NULL },
{ 910, "encryption-required", "Encrypt all peer connections", "er", 0, NULL },
{ 911, "encryption-preferred", "Prefer encrypted peer connections", "ep", 0, NULL },
{ 912, "encryption-tolerated", "Prefer unencrypted peer connections", "et", 0, NULL },
{ 'f', "finish", "Run a script when the torrent finishes",
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"f", 1, "<script>" },
{ 'g', "config-dir", "Where to find configuration files",
"g", 1, "<path>" },
{ 'i', "info", "Show torrent details and exit", "i", 0, NULL },
{ 'm', "portmap", "Enable portmapping via NAT-PMP or UPnP", "m", 0, NULL },
{ 'M', "no-portmap", "Disable portmapping", "M", 0, NULL },
{ 'n', "new", "Create a new torrent",
"n", 1, "<source>" },
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{ 'p', "port",
"Port for incoming peers (Default: "TR_DEFAULT_PORT_STR")",
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"p", 1, "<port>" },
{ 'r', "private", "Set the new torrent's 'private' flag", "r", 0, NULL },
{ 's', "scrape", "Scrape the torrent and exit", "s", 0, NULL },
{ 't', "tos",
"Peer socket TOS (0 to 255, default="TR_DEFAULT_PEER_SOCKET_TOS_STR")",
"t", 1, "<tos>" },
{ 'u', "uplimit", "Set max upload speed in KB/s", "u", 1, "<speed>" },
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{ 'U', "no-uplimit", "Don't limit the upload speed", "U", 0, NULL },
{ 'v', "verify", "Verify the specified torrent", "v", 0, NULL },
{ 'w', "download-dir", "Where to save downloaded data", "w", 1, "<path>" },
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{ 0, NULL, NULL, NULL, 0, NULL }
};
static void
showUsage( void )
{
tr_getopt_usage( MY_NAME, getUsage(), options );
exit( 0 );
}
static int
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numarg( const char * arg )
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{
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char * end = NULL;
const long num = strtol( arg, &end, 10 );
if( *end ) {
fprintf( stderr, "Not a number: \"%s\"\n", arg );
showUsage( );
}
return num;
}
static int
parseCommandLine( int argc, const char ** argv )
{
int c;
const char * optarg;
while(( c = tr_getopt( getUsage(), argc, argv, options, &optarg )))
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{
switch( c )
{
case 'a': announce = optarg; break;
case 'b': blocklistEnabled = 1; break;
case 'B': blocklistEnabled = 0; break;
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case 'c': comment = optarg; break;
case 'd': downloadLimit = numarg( optarg ); break;
case 'D': downloadLimit = -1; break;
case 'f': finishCall = optarg; break;
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case 'g': configdir = optarg; break;
case 'i': showInfo = 1; break;
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case 'm': natTraversal = 1; break;
case 'M': natTraversal = 0; break;
case 'n': sourceFile = optarg; break;
case 'p': peerPort = numarg( optarg ); break;
case 'r': isPrivate = 1; break;
case 's': showScrape = 1; break;
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case 't': peerSocketTOS = numarg( optarg ); break;
case 'u': uploadLimit = numarg( optarg ); break;
case 'U': uploadLimit = -1; break;
case 'v': verify = 1; break;
case 'w': downloadDir = optarg; break;
case 910: encryptionMode = TR_ENCRYPTION_REQUIRED; break;
case 911: encryptionMode = TR_CLEAR_PREFERRED; break;
case 912: encryptionMode = TR_ENCRYPTION_PREFERRED; break;
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case TR_OPT_UNK: torrentPath = optarg; break;
default: return 1;
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}
}
return 0;
}
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static void
sigHandler( int signal )
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{
switch( signal )
{
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case SIGINT: gotsig = 1; break;
case SIGHUP: manualUpdate = 1; break;
default: break;
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}
}