Winsock2 problem

umperio

When I include <winsock2.h> in Visual Studio 2003 I get tons of errors, can someone please tell me why?
Thank you everybody...:D

gillius

Because your code is wrong.

Oscar Giner

If you're using allegro, include only winalleg.h before allegro.h.

Rick

umperio, we need more info. I think that's what gillius is getting at.

decsonic

#include <allegro.h>
#include <winalleg.h>
#include <winsock2.h> //or winsock.h.. whatever its called 

Oscar Giner

Ah, yes, winalleg.h comes after allegro.h. But you should not include winsock2.h. winalleg already does it.

Krzysztof Kluczek

I'm using DevC++ and found that defining NOGDI define (-DNOGDI compiler option for MinGW) allows <allegro.h> and <windows.h> (or anything that includes it, like <winsock.h> and <vector>) to coexist. I don't know if it's proper solution, but it works for me all the time.

decsonic

that removes the GDI Driver tho.
There's a command like "-__HIDE-W32API" also

Oscar, winalleg includes windows.h.

X-G

-D__GTHREAD_HIDE_WIN32API. But that one will do nothing here; it only stops the STL stuff from including windows.h when using GCC.

decsonic: Read it again. winsock2.h, not windows.h.

Marco Radaelli

Uhm, maybe you can tell us which kind of errors you get?

umperio

#SelectExpand
   1------ Build started: Project: ManaWorld, Configuration: Release Win32 ------
   2
   3Compiling...
   4map_server.cpp
   5C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(109) : error C2011: 'fd_set' : 'struct' type redefinition
   6        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(54) : see declaration of 'fd_set'
   7C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(144) : warning C4005: 'FD_SET' : macro redefinition
   8        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(88) : see previous definition of 'FD_SET'
   9C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(153) : error C2011: 'timeval' : 'struct' type redefinition
  10        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(97) : see declaration of 'timeval'
  11C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(209) : error C2011: 'hostent' : 'struct' type redefinition
  12        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(153) : see declaration of 'hostent'
  13C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(222) : error C2011: 'netent' : 'struct' type redefinition
  14        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(166) : see declaration of 'netent'
  15C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(229) : error C2011: 'servent' : 'struct' type redefinition
  16        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(173) : see declaration of 'servent'
  17C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(241) : error C2011: 'protoent' : 'struct' type redefinition
  18        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(185) : see declaration of 'protoent'
  19C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(397) : error C2011: 'sockaddr_in' : 'struct' type redefinition
  20        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(321) : see declaration of 'sockaddr_in'
  21C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(407) : error C2011: 'WSAData' : 'struct' type redefinition
  22        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(331) : see declaration of 'WSAData'
  23C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(467) : warning C4005: 'SO_DONTLINGER' : macro redefinition
  24        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(411) : see previous definition of 'SO_DONTLINGER'
  25C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(524) : warning C4005: 'AF_IPX' : macro redefinition
  26        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(469) : see previous definition of 'AF_IPX'
  27C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(552) : warning C4005: 'AF_MAX' : macro redefinition
  28        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(488) : see previous definition of 'AF_MAX'
  29C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(558) : error C2011: 'sockaddr' : 'struct' type redefinition
  30        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(494) : see declaration of 'sockaddr'
  31C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(598) : error C2011: 'sockproto' : 'struct' type redefinition
  32        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(503) : see declaration of 'sockproto'
  33C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(637) : error C2011: 'linger' : 'struct' type redefinition
  34        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(540) : see declaration of 'linger'
  35C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(650) : warning C4005: 'SOMAXCONN' : macro redefinition
  36        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(553) : see previous definition of 'SOMAXCONN'
  37C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(675) : warning C4005: 'FD_READ' : macro redefinition
  38        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(571) : see previous definition of 'FD_READ'
  39C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(678) : warning C4005: 'FD_WRITE' : macro redefinition
  40        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(572) : see previous definition of 'FD_WRITE'
  41C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(681) : warning C4005: 'FD_OOB' : macro redefinition
  42        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(573) : see previous definition of 'FD_OOB'
  43C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(684) : warning C4005: 'FD_ACCEPT' : macro redefinition
  44        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(574) : see previous definition of 'FD_ACCEPT'
  45C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(687) : warning C4005: 'FD_CONNECT' : macro redefinition
  46        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(575) : see previous definition of 'FD_CONNECT'
  47C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(690) : warning C4005: 'FD_CLOSE' : macro redefinition
  48        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(576) : see previous definition of 'FD_CLOSE'
  49C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1622) : error C2375: 'accept' : redefinition; different linkage
  50        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(744) : see declaration of 'accept'
  51C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1643) : error C2375: 'bind' : redefinition; different linkage
  52        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(749) : see declaration of 'bind'
  53C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1662) : error C2375: 'closesocket' : redefinition; different linkage
  54        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(754) : see declaration of 'closesocket'
  55C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1681) : error C2375: 'connect' : redefinition; different linkage
  56        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(756) : see declaration of 'connect'
  57C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1702) : error C2375: 'ioctlsocket' : redefinition; different linkage
  58        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(761) : see declaration of 'ioctlsocket'
  59C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1723) : error C2375: 'getpeername' : redefinition; different linkage
  60        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(766) : see declaration of 'getpeername'
  61C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1744) : error C2375: 'getsockname' : redefinition; different linkage
  62        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(771) : see declaration of 'getsockname'
  63C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1767) : error C2375: 'getsockopt' : redefinition; different linkage
  64        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(776) : see declaration of 'getsockopt'
  65C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1788) : error C2375: 'htonl' : redefinition; different linkage
  66        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(783) : see declaration of 'htonl'
  67C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1805) : error C2375: 'htons' : redefinition; different linkage
  68        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(785) : see declaration of 'htons'
  69C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1822) : error C2375: 'inet_addr' : redefinition; different linkage
  70        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(787) : see declaration of 'inet_addr'
  71C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1839) : error C2375: 'inet_ntoa' : redefinition; different linkage
  72        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(789) : see declaration of 'inet_ntoa'
  73C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1857) : error C2375: 'listen' : redefinition; different linkage
  74        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(791) : see declaration of 'listen'
  75C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1875) : error C2375: 'ntohl' : redefinition; different linkage
  76        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(795) : see declaration of 'ntohl'
  77C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1892) : error C2375: 'ntohs' : redefinition; different linkage
  78        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(797) : see declaration of 'ntohs'
  79C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1912) : error C2375: 'recv' : redefinition; different linkage
  80        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(799) : see declaration of 'recv'
  81C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1937) : error C2375: 'recvfrom' : redefinition; different linkage
  82        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(805) : see declaration of 'recvfrom'
  83C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1963) : error C2375: 'select' : redefinition; different linkage
  84        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(813) : see declaration of 'select'
  85C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(1987) : error C2375: 'send' : redefinition; different linkage
  86        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(820) : see declaration of 'send'
  87C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2012) : error C2375: 'sendto' : redefinition; different linkage
  88        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(826) : see declaration of 'sendto'
  89C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2038) : error C2375: 'setsockopt' : redefinition; different linkage
  90        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(834) : see declaration of 'setsockopt'
  91C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2060) : error C2375: 'shutdown' : redefinition; different linkage
  92        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(841) : see declaration of 'shutdown'
  93C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2080) : error C2375: 'socket' : redefinition; different linkage
  94        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(845) : see declaration of 'socket'
  95C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2103) : error C2375: 'gethostbyaddr' : redefinition; different linkage
  96        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(852) : see declaration of 'gethostbyaddr'
  97C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2122) : error C2375: 'gethostbyname' : redefinition; different linkage
  98        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(857) : see declaration of 'gethostbyname'
  99C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2140) : error C2375: 'gethostname' : redefinition; different linkage
 100        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(859) : see declaration of 'gethostname'
 101C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2159) : error C2375: 'getservbyport' : redefinition; different linkage
 102        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(863) : see declaration of 'getservbyport'
 103C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2178) : error C2375: 'getservbyname' : redefinition; different linkage
 104        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(867) : see declaration of 'getservbyname'
 105C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2196) : error C2375: 'getprotobynumber' : redefinition; different linkage
 106        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(871) : see declaration of 'getprotobynumber'
 107C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2213) : error C2375: 'getprotobyname' : redefinition; different linkage
 108        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(873) : see declaration of 'getprotobyname'
 109C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2233) : error C2375: 'WSAStartup' : redefinition; different linkage
 110        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(877) : see declaration of 'WSAStartup'
 111C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2251) : error C2375: 'WSACleanup' : redefinition; different linkage
 112        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(881) : see declaration of 'WSACleanup'
 113C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2268) : error C2375: 'WSASetLastError' : redefinition; different linkage
 114        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(883) : see declaration of 'WSASetLastError'
 115C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2285) : error C2375: 'WSAGetLastError' : redefinition; different linkage
 116        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(885) : see declaration of 'WSAGetLastError'
 117C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2302) : error C2375: 'WSAIsBlocking' : redefinition; different linkage
 118        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(887) : see declaration of 'WSAIsBlocking'
 119C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2319) : error C2375: 'WSAUnhookBlockingHook' : redefinition; different linkage
 120        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(889) : see declaration of 'WSAUnhookBlockingHook'
 121C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2336) : error C2375: 'WSASetBlockingHook' : redefinition; different linkage
 122        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(891) : see declaration of 'WSASetBlockingHook'
 123C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2353) : error C2375: 'WSACancelBlockingCall' : redefinition; different linkage
 124        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(893) : see declaration of 'WSACancelBlockingCall'
 125C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2375) : error C2375: 'WSAAsyncGetServByName' : redefinition; different linkage
 126        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(895) : see declaration of 'WSAAsyncGetServByName'
 127C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2402) : error C2375: 'WSAAsyncGetServByPort' : redefinition; different linkage
 128        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(903) : see declaration of 'WSAAsyncGetServByPort'
 129C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2428) : error C2375: 'WSAAsyncGetProtoByName' : redefinition; different linkage
 130        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(911) : see declaration of 'WSAAsyncGetProtoByName'
 131C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2453) : error C2375: 'WSAAsyncGetProtoByNumber' : redefinition; different linkage
 132        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(918) : see declaration of 'WSAAsyncGetProtoByNumber'
 133C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2478) : error C2375: 'WSAAsyncGetHostByName' : redefinition; different linkage
 134        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(925) : see declaration of 'WSAAsyncGetHostByName'
 135C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2505) : error C2375: 'WSAAsyncGetHostByAddr' : redefinition; different linkage
 136        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(932) : see declaration of 'WSAAsyncGetHostByAddr'
 137C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2528) : error C2375: 'WSACancelAsyncRequest' : redefinition; different linkage
 138        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(941) : see declaration of 'WSACancelAsyncRequest'
 139C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock2.h(2548) : error C2375: 'WSAAsyncSelect' : redefinition; different linkage
 140        C:\Programmi\Microsoft Visual Studio .NET 2003\Vc7\PlatformSDK\Include\WinSock.h(943) : see declaration of 'WSAAsyncSelect'
 141map_server.cpp(24) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,char *,int,int)' to 'int'
 142map_server.cpp(24) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,char *,int,int)' to 'int'
 143        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 144map_server.cpp(24) : error C3861: 'recv': identifier not found, even with argument-dependent lookup
 145map_server.cpp(101) : error C3861: 'WSAStartup': identifier not found, even with argument-dependent lookup
 146map_server.cpp(102) : error C2440: '=' : cannot convert from 'SOCKET (__stdcall *)(int,int,int)' to 'SOCKET'
 147map_server.cpp(102) : error C2440: '=' : cannot convert from 'SOCKET (__stdcall *)(int,int,int)' to 'SOCKET'
 148        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 149map_server.cpp(102) : error C3861: 'socket': identifier not found, even with argument-dependent lookup
 150map_server.cpp(106) : error C2440: '=' : cannot convert from 'u_short (__stdcall *)(u_short)' to 'u_short'
 151map_server.cpp(106) : error C2440: '=' : cannot convert from 'u_short (__stdcall *)(u_short)' to 'u_short'
 152        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 153map_server.cpp(106) : error C3861: 'htons': identifier not found, even with argument-dependent lookup
 154map_server.cpp(107) : error C2440: '=' : cannot convert from 'unsigned long (__stdcall *)(const char *)' to 'u_long'
 155map_server.cpp(107) : error C2440: '=' : cannot convert from 'unsigned long (__stdcall *)(const char *)' to 'u_long'
 156        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 157map_server.cpp(107) : error C3861: 'inet_addr': identifier not found, even with argument-dependent lookup
 158map_server.cpp(110) : error C2440: '=' : cannot convert from 'hostent *(__stdcall *)(const char *)' to 'hostent *'
 159map_server.cpp(110) : error C2440: '=' : cannot convert from 'hostent *(__stdcall *)(const char *)' to 'hostent *'
 160        There is no context in which this conversion is possible
 161map_server.cpp(110) : error C3861: 'gethostbyname': identifier not found, even with argument-dependent lookup
 162map_server.cpp(115) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const sockaddr *,int)' to 'int'
 163map_server.cpp(115) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const sockaddr *,int)' to 'int'
 164        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 165map_server.cpp(115) : error C3861: 'connect': identifier not found, even with argument-dependent lookup
 166map_server.cpp(125) : error C3861: 'closesocket': identifier not found, even with argument-dependent lookup
 167map_server.cpp(126) : error C3861: 'WSACleanup': identifier not found, even with argument-dependent lookup
 168map_server.cpp(168) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const char *,int,int)' to 'int'
 169map_server.cpp(168) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const char *,int,int)' to 'int'
 170        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 171map_server.cpp(168) : error C3861: 'send': identifier not found, even with argument-dependent lookup
 172map_server.cpp(171) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,char *,int,int)' to 'int'
 173map_server.cpp(171) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,char *,int,int)' to 'int'
 174        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 175map_server.cpp(171) : error C3861: 'recv': identifier not found, even with argument-dependent lookup
 176map_server.cpp(174) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,char *,int,int)' to 'int'
 177map_server.cpp(174) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,char *,int,int)' to 'int'
 178        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 179map_server.cpp(174) : error C3861: 'recv': identifier not found, even with argument-dependent lookup
 180map_server.cpp(192) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const char *,int,int)' to 'int'
 181map_server.cpp(192) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const char *,int,int)' to 'int'
 182        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 183map_server.cpp(192) : error C3861: 'send': identifier not found, even with argument-dependent lookup
 184map_server.cpp(200) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const char *,int,int)' to 'int'
 185map_server.cpp(200) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const char *,int,int)' to 'int'
 186        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 187map_server.cpp(200) : error C3861: 'send': identifier not found, even with argument-dependent lookup
 188map_server.cpp(213) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const char *,int,int)' to 'int'
 189map_server.cpp(213) : error C2440: '=' : cannot convert from 'int (__stdcall *)(SOCKET,const char *,int,int)' to 'int'
 190        This conversion requires a reinterpret_cast, a C-style cast or function-style cast
 191map_server.cpp(213) : error C3861: 'send': identifier not found, even with argument-dependent lookup
 192
 193Build log was saved at "file://c:\Documents and Settings\Eugenio\Documenti\Visual Studio Projects\ManaWorld\Release\BuildLog.htm"
 194ManaWorld - 96 error(s), 11 warning(s)
 195
 196
 197---------------------- Done ----------------------
 198
 199    Build: 0 succeeded, 1 failed, 0 skipped

This is what I get when I compile, if I use only <winsock.h> instead of <winsock2.h> I get no errors.

Marco Radaelli

Oh... so it may really be a problem with the #include order. Strange that the errors comes only with <winsock2.h>. Try to post your #include lines.

Oscar Giner

I made a program with allegro an winsock2, and I just included allegro.h and winalleg.h, and it worked. Including winsock2.h gives errors about redefinitions, so winalleg.h (or windows.h) already includes winsock2.h.

decsonic

Quote:

-D__GTHREAD_HIDE_WIN32API. But that one will do nothing here; it only stops the STL stuff from including windows.h when using GCC.

decsonic: Read it again. winsock2.h, not windows.h.

ah sorry, forgot that he said msvc
I Never trust any files to already be included, winsock depends on windows.h.

The way i posted above should work tho

Oscar Giner

Ok, I'll say it once again:

#include <allegro.h>
#include <winalleg.h>
#include <winsock2.h> //or winsock.h.. whatever its called 

just doesn't compile! Trust me, I've tried it. You MUST NOT include winsock2.h

decsonic

works fine here

Oscar Giner

what version of msvc do you have? It doesn't work with msvc6 (maybe an unpatched version).

decsonic

Was testing that with mingw(Yes Brain dead atm - Insomnia)
checking with msvc, hmm see the problem..
winsock.h is included automaticly, but when you include winsock2 you get problems

Edit

1//From Windows.h
2 
3#ifndef WIN32_LEAN_AND_MEAN
4#include <cderr.h>
5#include <dde.h>
6#include <ddeml.h>
7#include <dlgs.h>
8#ifndef _MAC
9#include <lzexpand.h>
10#include <mmsystem.h>
11#include <nb30.h>
12#include <rpc.h>
13#endif
14#include <shellapi.h>
15#ifndef _MAC
16#include <winperf.h>
17 
18#if(_WIN32_WINNT >= 0x0400) 
19#include <winsock2.h>
20#include <mswsock.h>
21#else
22#include <winsock.h>
23#endif /* _WIN32_WINNT >=  0x0400 */

Thread #360420. Printed from Allegro.cc

1	//From Windows.h
2
3	#ifndef WIN32_LEAN_AND_MEAN
4	#include <cderr.h>
5	#include <dde.h>
6	#include <ddeml.h>
7	#include <dlgs.h>
8	#ifndef _MAC
9	#include <lzexpand.h>
10	#include <mmsystem.h>
11	#include <nb30.h>
12	#include <rpc.h>
13	#endif
14	#include <shellapi.h>
15	#ifndef _MAC
16	#include <winperf.h>
17
18	#if(_WIN32_WINNT >= 0x0400)
19	#include <winsock2.h>
20	#include <mswsock.h>
21	#else
22	#include <winsock.h>
23	#endif /* _WIN32_WINNT >= 0x0400 */