mirror of
https://github.com/transmission/transmission
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58333068e8
Don't create an 'unknown client' name with nonprintable characters.
506 lines
20 KiB
C
506 lines
20 KiB
C
/******************************************************************************
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* $Id$
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*
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* Copyright (c) 2005-2007 Transmission authors and contributors
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*****************************************************************************/
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#ifndef TR_TRANSMISSION_H
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#define TR_TRANSMISSION_H 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "version.h"
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#include <inttypes.h>
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#ifndef PRIu64
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# define PRIu64 "lld"
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#endif
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#include <time.h>
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#define SHA_DIGEST_LENGTH 20
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#ifdef __BEOS__
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# include <StorageDefs.h>
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# define MAX_PATH_LENGTH B_FILE_NAME_LENGTH
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#else
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# define MAX_PATH_LENGTH 1024
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#endif
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#ifndef INET_ADDRSTRLEN
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#define INET_ADDRSTRLEN 16
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#endif
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#define TR_DEFAULT_PORT 9090
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#define TR_PEER_FROM__MAX 4
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#define TR_PEER_FROM_INCOMING 0 /* connections made to the listening port */
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#define TR_PEER_FROM_TRACKER 1 /* peers received from a tracker */
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#define TR_PEER_FROM_CACHE 2 /* peers read from the peer cache */
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#define TR_PEER_FROM_PEX 3 /* peers discovered via PEX */
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/***********************************************************************
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* Error codes
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**********************************************************************/
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/* General errors */
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#define TR_OK 0x00000000
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#define TR_ERROR 0x81000000
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#define TR_ERROR_ASSERT 0x82000000
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/* I/O errors */
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#define TR_ERROR_IO_MASK 0x0000000F
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#define TR_ERROR_IO_PARENT 0x80000001
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#define TR_ERROR_IO_PERMISSIONS 0x80000002
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#define TR_ERROR_IO_OTHER 0x80000008
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/* Misc */
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#define TR_ERROR_TC_MASK 0x000000F0
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#define TR_ERROR_TC_ERROR 0x80000010
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#define TR_ERROR_TC_WARNING 0x80000020
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/***********************************************************************
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* tr_init
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***********************************************************************
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* Initializes a libtransmission instance. Returns a obscure handle to
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* be passed to all functions below. The tag argument is a short string
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* unique to the program invoking tr_init(), it is currently used as
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* part of saved torrent files' names to prevent one frontend from
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* deleting a torrent used by another. The following tags are used:
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* beos cli daemon gtk macosx
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**********************************************************************/
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typedef struct tr_handle_s tr_handle_t;
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tr_handle_t * tr_init( const char * tag );
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typedef struct tr_tracker_info_s tr_tracker_info_t;
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/***********************************************************************
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* tr_setMessageLevel
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***********************************************************************
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* Set the level of messages to be output or queued
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**********************************************************************/
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#define TR_MSG_ERR 1
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#define TR_MSG_INF 2
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#define TR_MSG_DBG 3
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void tr_setMessageLevel( int );
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int tr_getMessageLevel( void );
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/***********************************************************************
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* tr_setMessageQueuing
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***********************************************************************
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* Enable or disable message queuing
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**********************************************************************/
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typedef struct tr_msg_list_s tr_msg_list_t;
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void tr_setMessageQueuing( int );
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/***********************************************************************
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* tr_getQueuedMessages
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***********************************************************************
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* Return a list of queued messages
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**********************************************************************/
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tr_msg_list_t * tr_getQueuedMessages( void );
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void tr_freeMessageList( tr_msg_list_t * list );
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/***********************************************************************
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* tr_getPrefsDirectory
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***********************************************************************
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* Returns the full path to a directory which can be used to store
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* preferences. The string belongs to libtransmission, do not free it.
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**********************************************************************/
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char * tr_getPrefsDirectory();
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/***********************************************************************
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* tr_setBindPort
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***********************************************************************
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* Sets the port to listen for incoming peer connections.
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* This can be safely called even with active torrents.
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**********************************************************************/
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void tr_setBindPort( tr_handle_t *, int );
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/***********************************************************************
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* tr_natTraversalEnable
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* tr_natTraversalDisable
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***********************************************************************
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* Enable or disable NAT traversal using NAT-PMP or UPnP IGD.
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**********************************************************************/
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void tr_natTraversalEnable( tr_handle_t *, int enable );
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/***********************************************************************
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* tr_handleStatus
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***********************************************************************
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* Returns some status info for the given handle.
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**********************************************************************/
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typedef struct tr_handle_status_s tr_handle_status_t;
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tr_handle_status_t * tr_handleStatus( tr_handle_t * );
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/***********************************************************************
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* tr_setGlobalUploadLimit
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***********************************************************************
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* Sets the total upload rate limit in KB/s
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**********************************************************************/
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void tr_setGlobalUploadLimit( tr_handle_t *, int );
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/***********************************************************************
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* tr_setGlobalDownloadLimit
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***********************************************************************
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* Sets the total download rate limit in KB/s
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**********************************************************************/
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void tr_setGlobalDownloadLimit( tr_handle_t *, int );
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/***********************************************************************
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* tr_torrentCount
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***********************************************************************
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* Returns the count of open torrents
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**********************************************************************/
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int tr_torrentCount( tr_handle_t * h );
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/***********************************************************************
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* tr_torrentIterate
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***********************************************************************
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* Iterates on open torrents
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**********************************************************************/
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typedef struct tr_torrent_s tr_torrent_t;
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typedef void (*tr_callback_t) ( tr_torrent_t *, void * );
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void tr_torrentIterate( tr_handle_t *, tr_callback_t, void * );
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void tr_setUseCustomLimit( tr_torrent_t * tor, int limit );
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void tr_setUploadLimit( tr_torrent_t * tor, int limit );
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void tr_setDownloadLimit( tr_torrent_t * tor, int limit );
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/***********************************************************************
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* tr_torrentRates
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***********************************************************************
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* Gets the total download and upload rates
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**********************************************************************/
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void tr_torrentRates( tr_handle_t *, float *, float * );
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/***********************************************************************
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* tr_close
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***********************************************************************
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* Frees memory allocated by tr_init.
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**********************************************************************/
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void tr_close( tr_handle_t * );
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/***********************************************************************
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* tr_torrentInit
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***********************************************************************
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* Opens and parses torrent file at 'path'. If the file exists and is
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* a valid torrent file, returns an handle and adds it to the list of
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* torrents (but doesn't start it). Returns NULL and sets *error
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* otherwise. If hash is not NULL and the torrent is already loaded
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* then it's 20-byte hash will be copied in. If the TR_FLAG_SAVE flag
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* is passed then a copy of the torrent file will be saved.
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**********************************************************************/
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#define TR_EINVALID 1
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#define TR_EUNSUPPORTED 2
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#define TR_EDUPLICATE 3
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#define TR_EOTHER 666
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tr_torrent_t * tr_torrentInit( tr_handle_t *, const char * path,
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uint8_t * hash, int flags, int * error );
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/***********************************************************************
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* tr_torrentInitData
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***********************************************************************
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* Like tr_torrentInit, except the actual torrent data is passed in
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* instead of the filename.
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**********************************************************************/
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tr_torrent_t * tr_torrentInitData( tr_handle_t *, uint8_t * data,
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size_t size, uint8_t * hash,
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int flags, int * error );
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/***********************************************************************
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* tr_torrentInitSaved
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***********************************************************************
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* Opens and parses a torrent file as with tr_torrentInit, only taking
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* the hash string of a saved torrent file instead of a filename. There
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* are currently no valid flags for this function.
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**********************************************************************/
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tr_torrent_t * tr_torrentInitSaved( tr_handle_t *, const char * hashStr,
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int flags, int * error );
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/***********************************************************************
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* tr_torrentDisablePex
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***********************************************************************
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* Disable or enable peer exchange for this torrent. Peer exchange is
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* enabled by default, except for private torrents where pex is
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* disabled and cannot be enabled.
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**********************************************************************/
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void tr_torrentDisablePex( tr_torrent_t *, int disable );
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/***********************************************************************
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* tr_torrentScrape
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***********************************************************************
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* Return torrent metainfo.
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**********************************************************************/
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typedef struct tr_info_s tr_info_t;
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tr_info_t * tr_torrentInfo( tr_torrent_t * );
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/***********************************************************************
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* tr_torrentScrape
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***********************************************************************
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* Asks the tracker for the count of seeders and leechers. Returns 0
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* and fills 's' and 'l' if successful. Otherwise returns 1 if the
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* tracker doesn't support the scrape protocol, is unreachable or
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* replied with some error. tr_torrentScrape may block up to 20 seconds
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* before returning.
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**********************************************************************/
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int tr_torrentScrape( tr_torrent_t *, int * s, int * l, int * d );
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/***********************************************************************
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* tr_torrentStart
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***********************************************************************
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* Starts downloading. The download is launched in a seperate thread,
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* therefore tr_torrentStart returns immediately.
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**********************************************************************/
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void tr_torrentSetFolder( tr_torrent_t *, const char * );
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char * tr_torrentGetFolder( tr_torrent_t * );
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void tr_torrentStart( tr_torrent_t * );
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/***********************************************************************
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* tr_torrentStop
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***********************************************************************
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* Stops downloading and notices the tracker that we are leaving. The
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* thread keeps running while doing so.
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* The thread will eventually be joined, either:
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* - by tr_torrentStat when the tracker has been successfully noticed,
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* - by tr_torrentStat if the tracker could not be noticed within 60s,
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* - by tr_torrentClose if you choose to remove the torrent without
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* waiting any further.
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**********************************************************************/
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void tr_torrentStop( tr_torrent_t * );
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/***********************************************************************
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* tr_getFinished
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***********************************************************************
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* The first call after a torrent is completed returns 1. Returns 0
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* in other cases.
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**********************************************************************/
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int tr_getFinished( tr_torrent_t * );
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/***********************************************************************
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* tr_manualUpdate
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***********************************************************************
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* Reannounce to tracker regardless of wait interval
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**********************************************************************/
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void tr_manualUpdate( tr_torrent_t * );
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/***********************************************************************
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* tr_torrentStat
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***********************************************************************
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* Returns a pointer to an tr_stat_t structure with updated information
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* on the torrent. The structure belongs to libtransmission (do not
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* free it) and is guaranteed to be unchanged until the next call to
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* tr_torrentStat.
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* The interface should call this function every second or so in order
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* to update itself.
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**********************************************************************/
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typedef struct tr_stat_s tr_stat_t;
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tr_stat_t * tr_torrentStat( tr_torrent_t * );
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/***********************************************************************
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* tr_torrentPeers
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***********************************************************************/
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typedef struct tr_peer_stat_s tr_peer_stat_t;
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tr_peer_stat_t * tr_torrentPeers( tr_torrent_t *, int * peerCount );
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void tr_torrentPeersFree( tr_peer_stat_t *, int peerCount );
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/***********************************************************************
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* tr_torrentAvailability
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***********************************************************************
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* Use this to draw an advanced progress bar which is 'size' pixels
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* wide. Fills 'tab' which you must have allocated: each byte is set
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* to either -1 if we have the piece, otherwise it is set to the number
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* of connected peers who have the piece.
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**********************************************************************/
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void tr_torrentAvailability( tr_torrent_t *, int8_t * tab, int size );
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void tr_torrentAmountFinished( tr_torrent_t * tor, float * tab, int size );
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/***********************************************************************
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* tr_torrentCompletion
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***********************************************************************
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* Returns the completion progress for each file in the torrent as an
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* array of floats the same size and order as in tr_info_t. Free the
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* array when done.
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**********************************************************************/
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float * tr_torrentCompletion( tr_torrent_t * tor );
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/***********************************************************************
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* tr_torrentRemoveSaved
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***********************************************************************
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* Removes the saved copy of a torrent file for torrents which the
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* TR_FLAG_SAVE flag is set.
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**********************************************************************/
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void tr_torrentRemoveSaved( tr_torrent_t * );
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/***********************************************************************
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* tr_torrentClose
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***********************************************************************
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* Frees memory allocated by tr_torrentInit. If the torrent was running,
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* you must call tr_torrentStop() before closing it.
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**********************************************************************/
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void tr_torrentClose( tr_handle_t *, tr_torrent_t * );
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/***********************************************************************
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* tr_info_s
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**********************************************************************/
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typedef struct tr_file_s
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{
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uint64_t length; /* Length of the file, in bytes */
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char name[MAX_PATH_LENGTH]; /* Path to the file */
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}
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tr_file_t;
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struct tr_info_s
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{
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/* Path to torrent */
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char torrent[MAX_PATH_LENGTH];
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/* General info */
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uint8_t hash[SHA_DIGEST_LENGTH];
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char hashString[2*SHA_DIGEST_LENGTH+1];
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char name[MAX_PATH_LENGTH];
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/* Flags */
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#define TR_FLAG_SAVE 0x01 /* save a copy of the torrent file */
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#define TR_FLAG_PRIVATE 0x02 /* do not share information for this torrent */
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int flags;
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/* Tracker info */
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struct
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{
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tr_tracker_info_t * list;
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int count;
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} * trackerList;
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int trackerTiers;
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/* Torrent info */
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char comment[MAX_PATH_LENGTH];
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char creator[MAX_PATH_LENGTH];
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int dateCreated;
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/* Pieces info */
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int pieceSize;
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int pieceCount;
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uint64_t totalSize;
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uint8_t * pieces;
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/* Files info */
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int multifile;
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int fileCount;
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tr_file_t * files;
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};
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/***********************************************************************
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* tr_stat_s
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**********************************************************************/
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struct tr_stat_s
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{
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#define TR_STATUS_CHECK 0x001 /* Checking files */
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#define TR_STATUS_DOWNLOAD 0x002 /* Downloading */
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#define TR_STATUS_SEED 0x004 /* Seeding */
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#define TR_STATUS_STOPPING 0x008 /* Sending 'stopped' to the tracker */
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#define TR_STATUS_STOPPED 0x010 /* Sent 'stopped' but thread still
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running (for internal use only) */
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#define TR_STATUS_PAUSE 0x020 /* Paused */
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#define TR_STATUS_ACTIVE (TR_STATUS_CHECK|TR_STATUS_DOWNLOAD|TR_STATUS_SEED)
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#define TR_STATUS_INACTIVE (TR_STATUS_STOPPING|TR_STATUS_STOPPED|TR_STATUS_PAUSE)
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int status;
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int error;
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char errorString[128];
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int cannotConnect;
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tr_tracker_info_t * tracker;
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float progress;
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float rateDownload;
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float rateUpload;
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int eta;
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int peersTotal;
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int peersFrom[TR_PEER_FROM__MAX];
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int peersUploading;
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int peersDownloading;
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int seeders;
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int leechers;
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int completedFromTracker;
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uint64_t downloaded;
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uint64_t uploaded;
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float swarmspeed;
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#define TR_RATIO_NA -1
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#define TR_RATIO_INF -2
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float ratio;
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};
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struct tr_peer_stat_s
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{
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char addr[INET_ADDRSTRLEN];
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const char * client;
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int isConnected;
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int from;
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float progress;
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int port;
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int isDownloading;
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int isUploading;
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float downloadFromRate;
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float uploadToRate;
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};
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struct tr_msg_list_s
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{
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int level;
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time_t when;
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char * message;
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struct tr_msg_list_s * next;
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};
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struct tr_tracker_info_s
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{
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char * address;
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int port;
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char * announce;
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char * scrape;
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};
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struct tr_handle_status_s
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{
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#define TR_NAT_TRAVERSAL_MAPPING 1
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#define TR_NAT_TRAVERSAL_MAPPED 2
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#define TR_NAT_TRAVERSAL_NOTFOUND 3
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#define TR_NAT_TRAVERSAL_ERROR 4
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#define TR_NAT_TRAVERSAL_UNMAPPING 5
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#define TR_NAT_TRAVERSAL_DISABLED 6
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#define TR_NAT_TRAVERSAL_IS_DISABLED( st ) \
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( TR_NAT_TRAVERSAL_DISABLED == (st) || TR_NAT_TRAVERSAL_UNMAPPING == (st) )
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int natTraversalStatus;
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int publicPort;
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};
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#ifdef __TRANSMISSION__
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# include "internal.h"
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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