transmission/libtransmission/bencode.h

229 lines
7.2 KiB
C
Raw Normal View History

/*
* This file Copyright (C) 2008 Charles Kerr <charles@rebelbase.com>
2006-07-16 19:39:23 +00:00
*
* This file is licensed by the GPL version 2. Works owned by the
* Transmission project are granted a special exemption to clause 2(b)
* so that the bulk of its code can remain under the MIT license.
* This exemption does not extend to derived works not owned by
* the Transmission project.
2006-07-16 19:39:23 +00:00
*
* $Id$
*/
2006-07-16 19:39:23 +00:00
#ifndef TR_BENCODE_H
#define TR_BENCODE_H 1
2007-06-14 11:41:09 +00:00
#include <inttypes.h> /* for int64_t */
enum
{
TYPE_INT = 1,
TYPE_STR = 2,
TYPE_LIST = 4,
TYPE_DICT = 8
};
typedef struct tr_benc
2006-07-16 19:39:23 +00:00
{
char type;
2006-07-16 19:39:23 +00:00
union
{
int64_t i;
struct
{
size_t i;
char * s;
2006-07-16 19:39:23 +00:00
} s;
struct
{
size_t alloc;
size_t count;
struct tr_benc * vals;
2006-07-16 19:39:23 +00:00
} l;
} val;
} tr_benc;
2006-07-16 19:39:23 +00:00
/***
****
***/
int tr_bencParse( const void * buf,
const void * bufend,
tr_benc * setme_benc,
const uint8_t ** setme_end );
int tr_bencLoad( const void * buf,
size_t buflen,
tr_benc * setme_benc,
char ** setme_end );
int tr_bencLoadFile( const char * filename,
tr_benc * );
int tr_bencLoadJSONFile( const char * filename,
tr_benc * );
#if 0
void tr_bencPrint( const tr_benc * );
#endif
void tr_bencFree( tr_benc * );
char* tr_bencSave( const tr_benc * val,
int * len );
char* tr_bencSaveAsJSON( const tr_benc * top,
int * len );
int tr_bencSaveFile( const char * filename,
const tr_benc * );
int tr_bencSaveJSONFile( const char * filename,
const tr_benc * );
void tr_bencInitStr( tr_benc *,
const void * str,
int str_len );
void tr_bencInitRaw( tr_benc *,
const void * raw,
size_t raw_len );
2007-03-23 08:28:01 +00:00
void tr_bencInitInt( tr_benc *,
int64_t num );
int tr_bencInitDict( tr_benc *,
size_t reserveCount );
int tr_bencInitList( tr_benc *,
size_t reserveCount );
/***
****
***/
int tr_bencListReserve( tr_benc *,
size_t reserveCount );
tr_benc * tr_bencListAdd( tr_benc * );
tr_benc * tr_bencListAddInt( tr_benc *,
int64_t val );
tr_benc * tr_bencListAddStr( tr_benc *,
const char * val );
tr_benc * tr_bencListAddList( tr_benc *,
size_t reserveCount );
tr_benc * tr_bencListAddDict( tr_benc *,
size_t reserveCount );
size_t tr_bencListSize( const tr_benc * list );
tr_benc * tr_bencListChild( tr_benc * list,
size_t n );
/***
****
***/
int tr_bencDictReserve( tr_benc *,
size_t reserveCount );
int tr_bencDictRemove( tr_benc *,
const char * key );
tr_benc * tr_bencDictAdd( tr_benc *,
const char * key );
tr_benc * tr_bencDictAddDouble( tr_benc *,
const char * key,
double d );
tr_benc * tr_bencDictAddInt( tr_benc *,
const char * key,
int64_t val );
tr_benc * tr_bencDictAddStr( tr_benc *,
const char * key,
const char * val );
tr_benc * tr_bencDictAddList( tr_benc *,
const char * key,
size_t reserve );
tr_benc * tr_bencDictAddDict( tr_benc *,
const char * key,
size_t reserve );
tr_benc * tr_bencDictAddRaw( tr_benc *,
const char * key,
const void *,
size_t len );
tr_benc* tr_bencDictFind( tr_benc *,
const char * key );
int tr_bencDictFindList( tr_benc *,
const char * key,
tr_benc ** setme );
int tr_bencDictFindDict( tr_benc *,
const char * key,
tr_benc ** setme );
int tr_bencDictFindInt( tr_benc *,
const char * key,
int64_t * setme );
int tr_bencDictFindDouble( tr_benc *,
const char * key,
double * setme );
int tr_bencDictFindStr( tr_benc *,
const char * key,
const char ** setme );
int tr_bencDictFindRaw( tr_benc *,
const char * key,
const uint8_t ** setme_raw,
size_t * setme_len );
/***
****
***/
int tr_bencGetInt( const tr_benc * val,
int64_t * setme );
int tr_bencGetStr( const tr_benc * val,
const char ** setme );
int tr_bencIsType( const tr_benc *,
int type );
#define tr_bencIsInt( b ) tr_bencIsType( ( b ), TYPE_INT )
#define tr_bencIsDict( b ) tr_bencIsType( ( b ), TYPE_DICT )
#define tr_bencIsList( b ) tr_bencIsType( ( b ), TYPE_LIST )
#define tr_bencIsString( b ) tr_bencIsType( ( b ), TYPE_STR )
/**
*** Treat these as private -- they're only made public here
*** so that the unit tests can find them
**/
int tr_bencParseInt( const uint8_t * buf,
const uint8_t * bufend,
const uint8_t ** setme_end,
int64_t * setme_val );
int tr_bencParseStr( const uint8_t * buf,
const uint8_t * bufend,
const uint8_t ** setme_end,
const uint8_t ** setme_str,
size_t * setme_strlen );
2006-07-16 19:39:23 +00:00
#endif