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