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winsock2 errors
vishal gargote
Member #9,318
December 2007

Hi
In my code I get the following errors. I have included winsock2.h
Please can any one figure out the problem.

:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(112) : error C2011: 'fd_set' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(54) : see declaration of 'fd_set'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(147) : warning C4005: 'FD_SET' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(88) : see previous definition of 'FD_SET'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(156) : error C2011: 'timeval' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(97) : see declaration of 'timeval'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(212) : error C2011: 'hostent' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(153) : see declaration of 'hostent'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(225) : error C2011: 'netent' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(166) : see declaration of 'netent'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(232) : error C2011: 'servent' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(173) : see declaration of 'servent'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(244) : error C2011: 'protoent' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(185) : see declaration of 'protoent'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(400) : error C2011: 'sockaddr_in' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(321) : see declaration of 'sockaddr_in'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(410) : error C2011: 'WSAData' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(331) : see declaration of 'WSAData'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(470) : warning C4005: 'SO_DONTLINGER' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(411) : see previous definition of 'SO_DONTLINGER'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(527) : warning C4005: 'AF_IPX' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(469) : see previous definition of 'AF_IPX'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(555) : warning C4005: 'AF_MAX' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(488) : see previous definition of 'AF_MAX'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(561) : error C2011: 'sockaddr' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(494) : see declaration of 'sockaddr'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(601) : error C2011: 'sockproto' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(503) : see declaration of 'sockproto'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(640) : error C2011: 'linger' : 'struct' type redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(540) : see declaration of 'linger'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(653) : warning C4005: 'SOMAXCONN' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(553) : see previous definition of 'SOMAXCONN'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(679) : warning C4005: 'FD_READ' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(571) : see previous definition of 'FD_READ'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(682) : warning C4005: 'FD_WRITE' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(572) : see previous definition of 'FD_WRITE'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(685) : warning C4005: 'FD_OOB' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(573) : see previous definition of 'FD_OOB'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(688) : warning C4005: 'FD_ACCEPT' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(574) : see previous definition of 'FD_ACCEPT'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(691) : warning C4005: 'FD_CONNECT' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(575) : see previous definition of 'FD_CONNECT'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(694) : warning C4005: 'FD_CLOSE' : macro redefinition
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(576) : see previous definition of 'FD_CLOSE'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1626) : error C2375: 'accept' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(744) : see declaration of 'accept'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1647) : error C2375: 'bind' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(749) : see declaration of 'bind'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1666) : error C2375: 'closesocket' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(754) : see declaration of 'closesocket'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1685) : error C2375: 'connect' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(756) : see declaration of 'connect'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1706) : error C2375: 'ioctlsocket' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(761) : see declaration of 'ioctlsocket'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1727) : error C2375: 'getpeername' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(766) : see declaration of 'getpeername'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1748) : error C2375: 'getsockname' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(771) : see declaration of 'getsockname'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1771) : error C2375: 'getsockopt' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(776) : see declaration of 'getsockopt'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1792) : error C2375: 'htonl' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(783) : see declaration of 'htonl'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1809) : error C2375: 'htons' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(785) : see declaration of 'htons'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1826) : error C2375: 'inet_addr' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(787) : see declaration of 'inet_addr'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1843) : error C2375: 'inet_ntoa' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(789) : see declaration of 'inet_ntoa'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1861) : error C2375: 'listen' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(791) : see declaration of 'listen'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1879) : error C2375: 'ntohl' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(795) : see declaration of 'ntohl'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1896) : error C2375: 'ntohs' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(797) : see declaration of 'ntohs'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1916) : error C2375: 'recv' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(799) : see declaration of 'recv'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1941) : error C2375: 'recvfrom' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(805) : see declaration of 'recvfrom'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1967) : error C2375: 'select' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(813) : see declaration of 'select'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(1991) : error C2375: 'send' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(820) : see declaration of 'send'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2016) : error C2375: 'sendto' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(826) : see declaration of 'sendto'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2042) : error C2375: 'setsockopt' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(834) : see declaration of 'setsockopt'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2064) : error C2375: 'shutdown' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(841) : see declaration of 'shutdown'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2084) : error C2375: 'socket' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(845) : see declaration of 'socket'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2107) : error C2375: 'gethostbyaddr' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(852) : see declaration of 'gethostbyaddr'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2126) : error C2375: 'gethostbyname' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(857) : see declaration of 'gethostbyname'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2144) : error C2375: 'gethostname' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(859) : see declaration of 'gethostname'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2163) : error C2375: 'getservbyport' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(863) : see declaration of 'getservbyport'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2182) : error C2375: 'getservbyname' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(867) : see declaration of 'getservbyname'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2200) : error C2375: 'getprotobynumber' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(871) : see declaration of 'getprotobynumber'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2217) : error C2375: 'getprotobyname' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(873) : see declaration of 'getprotobyname'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2237) : error C2375: 'WSAStartup' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(877) : see declaration of 'WSAStartup'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2255) : error C2375: 'WSACleanup' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(881) : see declaration of 'WSACleanup'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2272) : error C2375: 'WSASetLastError' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(883) : see declaration of 'WSASetLastError'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2289) : error C2375: 'WSAGetLastError' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(885) : see declaration of 'WSAGetLastError'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2306) : error C2375: 'WSAIsBlocking' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(887) : see declaration of 'WSAIsBlocking'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2323) : error C2375: 'WSAUnhookBlockingHook' : redefinition; different linkage
1> c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock.h(889) : see declaration of 'WSAUnhookBlockingHook'
1>c:\program files\microsoft visual studio 8\vc\platformsdk\include\winsock2.h(2340) : error C2375: 'WSASetBlockingHook' : redefinition; different linkage

Edgar Reynaldo
Major Reynaldo
May 2007
avatar

If you have logs to post , use code tags for them. Press the help button on the post/reply/edit page to see how to use the forum tags.

<code>
Code or logs go here
</code>

Did you read the manual page on Windows Specifics?

Quote:

A Windows program that uses the Allegro library is only required to include one or more header files from the include/allegro tree, or allegro.h; however, if it also needs to directly call non portable Win32 API functions, it must include the Windows-specific header file winalleg.h after the Allegro headers, and before any Win32 API header file. By default winalleg.h includes the main Win32 C API header file windows.h. If instead you want to use the C++ interface to the Win32 API (a.k.a. the Microsoft Foundation Classes), define the preprocessor symbol ALLEGRO_AND_MFC before including any Allegro header so that afxwin.h will be included. Note that, in this latter case, the Allegro debugging macros ASSERT() and TRACE() are renamed AL_ASSERT() and AL_TRACE() respectively.

aj5555
Member #9,033
September 2007

You have probably got winsock[1].h already included.
You can not define winsock2 and winsock[1] at the same time.

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