Select returns 10038 on 64 bit system

[gailb]

The following code has been running for several years without problems on 32 bit systems. We are now attempting to build the code for a 64 bit Windows 7 system. The select statement is returning a 10038 error. The socket was ok in the "bind" and "listen" function calls. Perhaps the structure being built by FD_SET is aligned improperly? Any ideas?

int rc = 0, temprc = 0;

SOCKET AcceptSocket = 0, objListenSocket = 0;

struct sockaddr_in socketinfo, acceptinfo;

int iLength;

struct timeval stTimeout;

fd_set structReadFDS;

char cLogBuffer[150];

// Create the listening socket

objListenSocket = socket (AF_INET, SOCK_STREAM, 0);

if (objListenSocket == INVALID_SOCKET)

{

rc = XSRV_COULDNT_CREATE_SOCKET;

temprc = WSAGetLastError();

goto exit1;

}

// Bind the socket

// Port number must be in Network byte order (big endian)

memset (&socketinfo, '\0', sizeof(socketinfo));

socketinfo.sin_family = AF_INET;

socketinfo.sin_port = htons(47809);

socketinfo.sin_addr.s_addr = INADDR_ANY;

rc = bind(objListenSocket, (struct sockaddr *)&socketinfo, sizeof(socketinfo));

if (rc == SOCKET_ERROR)

{

temprc = WSAGetLastError();

rc = XSRV_COULDNT_BIND_SOCKET;

goto exit1;

}

// Listen on the socket for a connection, backlog = 5 deep (the max)

rc = listen(objListenSocket, SOMAXCONN);

if (rc == SOCKET_ERROR)

{

temprc = WSAGetLastError();

rc = XSRV_COULDNT_LISTEN_ON_SOCKET;

goto exit1;

}

// Use select to determine if there is any data on the listening

// socket. If not, don't try to accept. This keeps the accept from

// blocking.

// Initialize the select structure with listening socket.

FD_ZERO(&structReadFDS);

FD_SET(objListenSocket, &structReadFDS);

// Select timesout in 1/2 a second

temprc = select(NULL, &structReadFDS, NULL, NULL, &stTimeout);

// If error

if (temprc == SOCKET_ERROR)

{

temprc = WSAGetLastError();

rc = XSRV_COULDNT_SELECT;

goto exit2;

}