93 lines
3.4 KiB
C
93 lines
3.4 KiB
C
/******************************************************************************
|
|
* $Id$
|
|
*
|
|
* 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_BENCODE_H
|
|
#define TR_BENCODE_H 1
|
|
|
|
#include <inttypes.h> /* for int64_t */
|
|
#include <string.h> /* for memset */
|
|
|
|
typedef struct benc_val_s
|
|
{
|
|
#define TYPE_INT 1
|
|
#define TYPE_STR 2
|
|
#define TYPE_LIST 4
|
|
#define TYPE_DICT 8
|
|
char type;
|
|
union
|
|
{
|
|
int64_t i;
|
|
struct
|
|
{
|
|
int i;
|
|
char * s;
|
|
int nofree;
|
|
} s;
|
|
struct
|
|
{
|
|
int alloc;
|
|
int count;
|
|
struct benc_val_s * vals;
|
|
} l;
|
|
} val;
|
|
} benc_val_t;
|
|
|
|
#define tr_bencLoad(b,l,v,e) _tr_bencLoad((char*)(b),(l),(v),(char**)(e))
|
|
int _tr_bencLoad( char * buf, int len, benc_val_t * val,
|
|
char ** end );
|
|
void tr_bencPrint( benc_val_t * val );
|
|
void tr_bencFree( benc_val_t * val );
|
|
benc_val_t * tr_bencDictFind( benc_val_t * val, const char * key );
|
|
benc_val_t * tr_bencDictFindType( benc_val_t * val, const char * key, int type );
|
|
benc_val_t * tr_bencDictFindFirst( benc_val_t * val, ... );
|
|
|
|
/* marks a string as 'do not free' and returns it */
|
|
char * tr_bencStealStr( benc_val_t * val );
|
|
|
|
/* convenience functions for building benc_val_t structures */
|
|
|
|
static inline void tr_bencInit( benc_val_t * val, int type )
|
|
{
|
|
memset( val, 0, sizeof( *val ) );
|
|
val->type = type;
|
|
}
|
|
|
|
#define tr_bencInitStr( a, b, c, d ) \
|
|
_tr_bencInitStr( (a), ( char * )(b), (c), (d) )
|
|
void _tr_bencInitStr( benc_val_t * val, char * str, int len, int nofree );
|
|
int tr_bencInitStrDup( benc_val_t * val, const char * str );
|
|
void tr_bencInitInt( benc_val_t * val, int64_t num );
|
|
int tr_bencListReserve( benc_val_t * list, int count );
|
|
/* note that for one key-value pair, count should be 1, not 2 */
|
|
int tr_bencDictReserve( benc_val_t * dict, int count );
|
|
benc_val_t * tr_bencListAdd( benc_val_t * list );
|
|
/* note: key must not be freed or modified while val is in use */
|
|
benc_val_t * tr_bencDictAdd( benc_val_t * dict, const char * key );
|
|
|
|
char* tr_bencSave( const benc_val_t * val, int * len );
|
|
|
|
int64_t tr_bencGetInt ( const benc_val_t * val );
|
|
|
|
#endif
|