transmission/utils/create.c

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/*
* This file Copyright (C) Mnemosyne LLC
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2
* as published by the Free Software Foundation.
*
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
*
* $Id$
*/
#include <errno.h>
#include <stdio.h>
#include <stdlib.h> /* EXIT_FAILURE */
#include <unistd.h> /* getcwd() */
#include <libtransmission/transmission.h>
#include <libtransmission/makemeta.h>
#include <libtransmission/tr-getopt.h>
#include <libtransmission/utils.h>
#include <libtransmission/version.h>
#define MY_NAME "transmission-create"
#define MAX_TRACKERS 128
static tr_tracker_info trackers[MAX_TRACKERS];
static int trackerCount = 0;
static bool isPrivate = false;
static bool showVersion = false;
const char * comment = NULL;
const char * outfile = NULL;
const char * infile = NULL;
static tr_option options[] =
{
{ 'p', "private", "Allow this torrent to only be used with the specified tracker(s)", "p", 0, NULL },
{ 'o', "outfile", "Save the generated .torrent to this filename", "o", 1, "<file>" },
{ 'c', "comment", "Add a comment", "c", 1, "<comment>" },
{ 't', "tracker", "Add a tracker's announce URL", "t", 1, "<url>" },
{ 'V', "version", "Show version number and exit", "V", 0, NULL },
{ 0, NULL, NULL, NULL, 0, NULL }
};
static const char *
getUsage( void )
{
return "Usage: " MY_NAME " [options] <file|directory>";
}
static int
parseCommandLine( int argc, const char ** argv )
{
int c;
const char * optarg;
while(( c = tr_getopt( getUsage( ), argc, argv, options, &optarg )))
{
switch( c )
{
case 'V': showVersion = true; break;
case 'p': isPrivate = true; break;
case 'o': outfile = optarg; break;
case 'c': comment = optarg; break;
case 't': if( trackerCount + 1 < MAX_TRACKERS ) {
trackers[trackerCount].tier = trackerCount;
trackers[trackerCount].announce = (char*) optarg;
++trackerCount;
}
break;
case TR_OPT_UNK: infile = optarg; break;
default: return 1;
}
}
return 0;
}
static char*
tr_getcwd( void )
{
char * result;
char buf[2048];
#ifdef WIN32
result = _getcwd( buf, sizeof( buf ) );
#else
result = getcwd( buf, sizeof( buf ) );
#endif
if( result == NULL )
{
fprintf( stderr, "getcwd error: \"%s\"", tr_strerror( errno ) );
*buf = '\0';
}
return tr_strdup( buf );
}
int
main( int argc, char * argv[] )
{
char * out2 = NULL;
tr_metainfo_builder * b = NULL;
tr_setMessageLevel( TR_MSG_ERR );
if( parseCommandLine( argc, (const char**)argv ) )
return EXIT_FAILURE;
if( showVersion ) {
fprintf( stderr, MY_NAME" "LONG_VERSION_STRING"\n" );
return 0;
}
if( !infile )
{
fprintf( stderr, "ERROR: No input file or directory specified.\n" );
tr_getopt_usage( MY_NAME, getUsage( ), options );
fprintf( stderr, "\n" );
return EXIT_FAILURE;
}
if( outfile == NULL )
{
char * base = tr_basename( infile );
char * end = tr_strdup_printf( "%s.torrent", base );
char * cwd = tr_getcwd( );
outfile = out2 = tr_buildPath( cwd, end, NULL );
tr_free( cwd );
tr_free( end );
tr_free( base );
}
if( !trackerCount )
{
if( isPrivate )
{
fprintf( stderr, "ERROR: no trackers specified for a private torrent\n" );
return EXIT_FAILURE;
}
else
{
printf( "WARNING: no trackers specified\n" );
}
}
printf( "Creating torrent \"%s\" ...", outfile );
fflush( stdout );
b = tr_metaInfoBuilderCreate( infile );
tr_makeMetaInfo( b, outfile, trackers, trackerCount, comment, isPrivate );
while( !b->isDone ) {
tr_wait_msec( 500 );
putc( '.', stdout );
fflush( stdout );
}
putc( ' ', stdout );
switch( b->result ) {
case TR_MAKEMETA_OK: printf( "done!" ); break;
case TR_MAKEMETA_URL: printf( "bad announce URL: \"%s\"", b->errfile ); break;
case TR_MAKEMETA_IO_READ: printf( "error reading \"%s\": %s", b->errfile, tr_strerror(b->my_errno) ); break;
case TR_MAKEMETA_IO_WRITE: printf( "error writing \"%s\": %s", b->errfile, tr_strerror(b->my_errno) ); break;
case TR_MAKEMETA_CANCELLED: printf( "cancelled" ); break;
}
putc( '\n', stdout );
tr_metaInfoBuilderFree( b );
tr_free( out2 );
return 0;
}