int
XdmcpWriteHeader (
XdmcpBufferPtr buffer,
XdmcpHeaderPtr header)
{
BYTE *newData;
if ((int)buffer->size < 6 + (int)header->length)
{
newData = (BYTE *) Xalloc (XDM_MAX_MSGLEN * sizeof (BYTE));
if (!newData)
return FALSE;
Xfree ((unsigned long *)(buffer->data));
buffer->data = newData;
buffer->size = XDM_MAX_MSGLEN;
}
buffer->pointer = 0;
if (!XdmcpWriteCARD16 (buffer, header->version))
return FALSE;
if (!XdmcpWriteCARD16 (buffer, header->opcode))
return FALSE;
if (!XdmcpWriteCARD16 (buffer, header->length))
return FALSE;
return TRUE;
}
static void
send_keepalive_msg(void)
{
XdmcpHeader header;
int socketfd = xdmcpSocket;
header.version = XDM_PROTOCOL_VERSION;
header.opcode = (CARD16) KEEPALIVE;
header.length = 6;
XdmcpWriteHeader(&buffer, &header);
XdmcpWriteCARD16(&buffer, DisplayNumber);
XdmcpWriteCARD32(&buffer, SessionID);
state = XDM_AWAIT_ALIVE_RESPONSE;
#if defined(IPv6) && defined(AF_INET6)
if (SOCKADDR_FAMILY(req_sockaddr) == AF_INET6)
socketfd = xdmcpSocket6;
#endif
XdmcpFlush(socketfd, &buffer, (XdmcpNetaddr) &req_sockaddr, req_socklen);
}
static void
send_manage_msg(void)
{
XdmcpHeader header;
int socketfd = xdmcpSocket;
header.version = XDM_PROTOCOL_VERSION;
header.opcode = (CARD16) MANAGE;
header.length = 8 + DisplayClass.length;
if (!XdmcpWriteHeader(&buffer, &header))
return;
XdmcpWriteCARD32(&buffer, SessionID);
XdmcpWriteCARD16(&buffer, DisplayNumber);
XdmcpWriteARRAY8(&buffer, &DisplayClass);
state = XDM_AWAIT_MANAGE_RESPONSE;
#if defined(IPv6) && defined(AF_INET6)
if (SOCKADDR_FAMILY(req_sockaddr) == AF_INET6)
socketfd = xdmcpSocket6;
#endif
XdmcpFlush(socketfd, &buffer, (XdmcpNetaddr) &req_sockaddr, req_socklen);
}
static void
send_request_msg(void)
{
XdmcpHeader header;
int length;
int i;
CARD16 XdmcpConnectionType;
ARRAY8 authenticationData;
int socketfd = xdmcpSocket;
switch (SOCKADDR_FAMILY(ManagerAddress)) {
case AF_INET:
XdmcpConnectionType = FamilyInternet;
break;
#if defined(IPv6) && defined(AF_INET6)
case AF_INET6:
XdmcpConnectionType = FamilyInternet6;
break;
#endif
default:
XdmcpConnectionType = 0xffff;
break;
}
header.version = XDM_PROTOCOL_VERSION;
header.opcode = (CARD16) REQUEST;
length = 2; /* display number */
length += 1 + 2 * ConnectionTypes.length; /* connection types */
length += 1; /* connection addresses */
for (i = 0; i < ConnectionAddresses.length; i++)
length += 2 + ConnectionAddresses.data[i].length;
authenticationData.length = 0;
authenticationData.data = 0;
if (AuthenticationFuncs) {
(*AuthenticationFuncs->Generator) (AuthenticationData,
&authenticationData, REQUEST);
}
length += 2 + AuthenticationName->length; /* authentication name */
length += 2 + authenticationData.length; /* authentication data */
length += 1; /* authorization names */
for (i = 0; i < AuthorizationNames.length; i++)
length += 2 + AuthorizationNames.data[i].length;
length += 2 + ManufacturerDisplayID.length; /* display ID */
header.length = length;
if (!XdmcpWriteHeader(&buffer, &header)) {
XdmcpDisposeARRAY8(&authenticationData);
return;
}
XdmcpWriteCARD16(&buffer, DisplayNumber);
XdmcpWriteCARD8(&buffer, ConnectionTypes.length);
/* The connection array is send reordered, so that connections of */
/* the same address type as the XDMCP manager connection are send */
/* first. This works around a bug in xdm. [email protected] */
for (i = 0; i < (int) ConnectionTypes.length; i++)
if (ConnectionTypes.data[i] == XdmcpConnectionType)
XdmcpWriteCARD16(&buffer, ConnectionTypes.data[i]);
for (i = 0; i < (int) ConnectionTypes.length; i++)
if (ConnectionTypes.data[i] != XdmcpConnectionType)
XdmcpWriteCARD16(&buffer, ConnectionTypes.data[i]);
XdmcpWriteCARD8(&buffer, ConnectionAddresses.length);
for (i = 0; i < (int) ConnectionAddresses.length; i++)
if ((i < ConnectionTypes.length) &&
(ConnectionTypes.data[i] == XdmcpConnectionType))
XdmcpWriteARRAY8(&buffer, &ConnectionAddresses.data[i]);
for (i = 0; i < (int) ConnectionAddresses.length; i++)
if ((i >= ConnectionTypes.length) ||
(ConnectionTypes.data[i] != XdmcpConnectionType))
XdmcpWriteARRAY8(&buffer, &ConnectionAddresses.data[i]);
XdmcpWriteARRAY8(&buffer, AuthenticationName);
XdmcpWriteARRAY8(&buffer, &authenticationData);
XdmcpDisposeARRAY8(&authenticationData);
XdmcpWriteARRAYofARRAY8(&buffer, &AuthorizationNames);
XdmcpWriteARRAY8(&buffer, &ManufacturerDisplayID);
#if defined(IPv6) && defined(AF_INET6)
if (SOCKADDR_FAMILY(req_sockaddr) == AF_INET6)
socketfd = xdmcpSocket6;
#endif
if (XdmcpFlush(socketfd, &buffer,
(XdmcpNetaddr) &req_sockaddr, req_socklen))
state = XDM_AWAIT_REQUEST_RESPONSE;
}
