release/src/router/transmission/libtransmission/net.h

   1 /******************************************************************************
   2  * $Id: net.h 11709 2011-01-19 13:48:47Z jordan $
   3  *
   4  * Copyright (c) Transmission authors and contributors
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  19  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *****************************************************************************/
  24
  25 #ifndef __TRANSMISSION__
  26 #error only libtransmission should #include this header.
  27 #endif
  28
  29 #ifndef _TR_NET_H_
  30 #define _TR_NET_H_
  31
  32 #ifdef WIN32
  33  #include <inttypes.h>
  34  #include <ws2tcpip.h>
  35 #else
  36  #include <sys/types.h>
  37  #include <sys/socket.h>
  38  #include <netinet/in.h>
  39  #include <arpa/inet.h>
  40 #endif
  41
  42 #ifdef WIN32
  43  #define EADDRINUSE              WSAEADDRINUSE
  44  #define ECONNREFUSED            WSAECONNREFUSED
  45  #define ECONNRESET              WSAECONNRESET
  46  #define EHOSTUNREACH            WSAEHOSTUNREACH
  47  #define EINPROGRESS             WSAEINPROGRESS
  48  #define ENOTCONN                WSAENOTCONN
  49  #define EWOULDBLOCK             WSAEWOULDBLOCK
  50  #define EAFNOSUPPORT            WSAEAFNOSUPPORT
  51  #define ENETUNREACH             WSAENETUNREACH
  52  #define sockerrno               WSAGetLastError( )
  53 #else
  54  #include <errno.h>
  55  #define sockerrno errno
  56 #endif
  57
  58 struct tr_session;
  59
  60 typedef enum tr_address_type
  61 {
  62     TR_AF_INET,
  63     TR_AF_INET6,
  64     NUM_TR_AF_INET_TYPES
  65 }
  66 tr_address_type;
  67
  68 typedef struct tr_address
  69 {
  70     tr_address_type type;
  71     union {
  72         /* The order here is important for tr_in{,6}addr_any initialization,
  73          * since we can't use C99 designated initializers */
  74         struct in6_addr addr6;
  75         struct in_addr  addr4;
  76     } addr;
  77 } tr_address;
  78
  79 extern const tr_address tr_inaddr_any;
  80 extern const tr_address tr_in6addr_any;
  81
  82 const char *tr_ntop( const tr_address * src,
  83                      char * dst,
  84                      int size );
  85 const char *tr_ntop_non_ts( const tr_address * src );
  86 tr_address *tr_pton( const char * src,
  87                      tr_address * dst );
  88 int tr_compareAddresses( const tr_address * a,
  89                          const tr_address * b);
  90
  91 tr_bool tr_isValidPeerAddress( const tr_address * addr, tr_port port );
  92
  93 static inline tr_bool tr_isAddress( const tr_address * a ) { return ( a != NULL ) && ( a->type==TR_AF_INET || a->type==TR_AF_INET6 ); }
  94
  95 tr_bool tr_net_hasIPv6( tr_port );
  96
  97 /***********************************************************************
  98  * Sockets
  99  **********************************************************************/
 100 int  tr_netOpenPeerSocket( tr_session       * session,
 101                            const tr_address * addr,
 102                            tr_port            port,
 103                            tr_bool            clientIsSeed );
 104
 105 int  tr_netBindTCP( const tr_address * addr,
 106                     tr_port            port,
 107                     tr_bool            suppressMsgs );
 108
 109 int  tr_netAccept( tr_session * session,
 110                    int          bound,
 111                    tr_address * setme_addr,
 112                    tr_port    * setme_port );
 113
 114 int  tr_netSetTOS( int s,
 115                    int tos );
 116
 117 int tr_netSetCongestionControl( int s, const char *algorithm );
 118
 119 void tr_netClose( tr_session * session, int s );
 120
 121 void tr_netCloseSocket( int fd );
 122
 123 void tr_netInit( void );
 124
 125 /**
 126  * @brief get a human-representable string representing the network error.
 127  * @param err an errno on Unix/Linux and an WSAError on win32)
 128  */
 129 char* tr_net_strerror( char * buf, size_t buflen, int err );
 130
 131 const unsigned char *tr_globalIPv6( void );
 132
 133 #if defined( WIN32) && !defined(QT_DLL)
 134 /* The QT exclusion is because something clashes whith the next include */
 135 #include <ws2tcpip.h>           /* socklen_t */
 136
 137 /** @brief Missing in Windows and Mingw */
 138 const char *inet_ntop( int af, const void *src, char *dst, socklen_t cnt );
 139 int inet_pton(int af, const char *src, void *dst);
 140 #endif
 141
 142 #endif /* _TR_NET_H_ */