transmission/libtransmission/net.h

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/******************************************************************************
* $Id$
*
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* Copyright (c) 2005-2008 Transmission authors and contributors
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*
* 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 __TRANSMISSION__
#error only libtransmission should #include this header.
#endif
#ifndef _TR_NET_H_
#define _TR_NET_H_
#ifdef WIN32
#include <inttypes.h>
#include <winsock2.h>
#include <WS2tcpip.h>
typedef int socklen_t;
#else
#include <sys/types.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#endif
#ifdef WIN32
#define ECONNREFUSED WSAECONNREFUSED
#define ECONNRESET WSAECONNRESET
#define EHOSTUNREACH WSAEHOSTUNREACH
#define EINPROGRESS WSAEINPROGRESS
#define ENOTCONN WSAENOTCONN
#define EWOULDBLOCK WSAEWOULDBLOCK
#define EAFNOSUPPORT WSAEAFNOSUPPORT
#define ENETUNREACH WSAENETUNREACH
#define sockerrno WSAGetLastError( )
#else
#include <errno.h>
#define sockerrno errno
#endif
struct tr_session;
typedef enum tr_address_type
{
TR_AF_INET,
TR_AF_INET6
} tr_address_type;
typedef struct tr_address
{
tr_address_type type;
union {
/* The order here is important for tr_in{,6}addr_any initialization,
* since we can't use C99 designated initializers */
struct in6_addr addr6;
struct in_addr addr4;
} addr;
} tr_address;
extern const tr_address tr_inaddr_any;
extern const tr_address tr_in6addr_any;
const char *tr_ntop( const tr_address * src,
char * dst,
int size );
const char *tr_ntop_non_ts( const tr_address * src );
tr_address *tr_pton( const char * src,
tr_address * dst );
int tr_compareAddresses( const tr_address * a,
const tr_address * b);
void tr_normalizeV4Mapped( tr_address * const addr );
tr_bool tr_isValidPeerAddress( const tr_address * addr, tr_port port );
void tr_suspectAddress( const tr_address * a, const char * source );
static TR_INLINE tr_bool tr_isAddress( const tr_address * a ) { return ( a != NULL ) && ( a->type==TR_AF_INET || a->type==TR_AF_INET6 ); }
tr_bool tr_net_hasIPv6( tr_port );
/***********************************************************************
* Socket list housekeeping
**********************************************************************/
typedef struct tr_socketList tr_socketList;
tr_socketList *tr_socketListAppend( tr_socketList * const head,
const tr_address * const addr );
tr_socketList *tr_socketListNew( const tr_address * const addr );
void tr_socketListFree( tr_socketList * const head );
void tr_socketListRemove( tr_socketList * const head,
tr_socketList * const el);
void tr_socketListTruncate( tr_socketList * const head,
tr_socketList * const start );
int tr_socketListGetSocket( const tr_socketList * const el );
const tr_address *tr_socketListGetAddress( const tr_socketList * const el );
void tr_socketListForEach( tr_socketList * const head,
void ( * cb ) ( int * const,
tr_address * const,
void * const ),
void * const userData);
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/***********************************************************************
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* Sockets
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**********************************************************************/
int tr_netOpenTCP( tr_session * session,
const tr_address * addr,
tr_port port );
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int tr_netBindTCP( const tr_address * addr,
tr_port port,
tr_bool suppressMsgs );
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int tr_netAccept( tr_session * session,
int bound,
tr_address * setme_addr,
tr_port * setme_port );
int tr_netSetTOS( int s,
int tos );
void tr_netClose( int s );
void tr_netInit( void );
#endif /* _TR_NET_H_ */