transmission/libtransmission/net.h

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/******************************************************************************
* $Id$
*
* Copyright (c) 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 <ws2tcpip.h>
#else
#include <sys/socket.h>
#include <netinet/in.h>
#endif
#ifdef WIN32
#define EADDRINUSE WSAEADDRINUSE
#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
/****
*****
***** tr_address
*****
****/
typedef enum tr_address_type
{
TR_AF_INET,
TR_AF_INET6,
NUM_TR_AF_INET_TYPES
}
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_address_to_string( const tr_address * addr );
const char* tr_address_to_string_with_buf( const tr_address * addr,
char * buf,
size_t buflen );
bool tr_address_from_string ( tr_address * setme,
const char * string );
bool tr_address_from_sockaddr_storage( tr_address * setme,
tr_port * port,
const struct sockaddr_storage * src );
int tr_address_compare( const tr_address * a,
const tr_address * b );
bool tr_address_is_valid_for_peers( const tr_address * addr,
tr_port port );
static inline bool
tr_address_is_valid( const tr_address * a )
{
return ( a != NULL ) && ( a->type==TR_AF_INET || a->type==TR_AF_INET6 );
}
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/***********************************************************************
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* Sockets
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**********************************************************************/
struct tr_session;
int tr_netOpenPeerSocket( tr_session * session,
const tr_address * addr,
tr_port port,
bool clientIsSeed );
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struct UTPSocket *
tr_netOpenPeerUTPSocket( tr_session * session,
const tr_address * addr,
tr_port port,
bool clientIsSeed);
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int tr_netBindTCP( const tr_address * addr,
tr_port port,
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 );
int tr_netSetCongestionControl( int s, const char *algorithm );
void tr_netClose( tr_session * session, int s );
void tr_netCloseSocket( int fd );
void tr_netInit( void );
bool tr_net_hasIPv6( tr_port );
/**
* @brief get a human-representable string representing the network error.
* @param err an errno on Unix/Linux and an WSAError on win32)
*/
char* tr_net_strerror( char * buf, size_t buflen, int err );
const unsigned char *tr_globalIPv6( void );
#if defined( WIN32) && !defined(QT_DLL)
/* The QT exclusion is because something clashes whith the next include */
#include <ws2tcpip.h> /* socklen_t */
#endif
#endif /* _TR_NET_H_ */