/*
============
Cmd_CheckCommand
============
*/
qboolean Cmd_CheckCommand (const char *partial)
{
cmd_function_t *cmd;
cmdalias_t *a;
cvar_t *var;
if (!partial || !partial[0])
return false;
for (cmd = cmd_functions ; cmd ; cmd = cmd->next)
{
if ( !strcmp(partial, cmd->name) )
return true;
}
var = Cvar_FindVarAfter ("", CVAR_NONE);
for ( ; var ; var = var->next)
{
if ( !strcmp(partial, var->name) )
return true;
}
for (a = cmd_alias ; a ; a = a->next)
{
if ( !strcmp(partial, a->name) )
return true;
}
return false;
}
static qsocket_t *_Datagram_CheckNewConnections (void)
{
struct qsockaddr clientaddr;
struct qsockaddr newaddr;
sys_socket_t newsock;
sys_socket_t acceptsock;
qsocket_t *sock;
qsocket_t *s;
int len;
int command;
int control;
int ret;
acceptsock = dfunc.CheckNewConnections();
if (acceptsock == INVALID_SOCKET)
return NULL;
SZ_Clear(&net_message);
len = dfunc.Read (acceptsock, net_message.data, net_message.maxsize, &clientaddr);
if (len < (int) sizeof(int))
return NULL;
net_message.cursize = len;
MSG_BeginReading ();
control = BigLong(*((int *)net_message.data));
MSG_ReadLong();
if (control == -1)
return NULL;
if ((control & (~NETFLAG_LENGTH_MASK)) != (int)NETFLAG_CTL)
return NULL;
if ((control & NETFLAG_LENGTH_MASK) != len)
return NULL;
command = MSG_ReadByte();
if (command == CCREQ_SERVER_INFO)
{
if (Q_strcmp(MSG_ReadString(), "QUAKE") != 0)
return NULL;
SZ_Clear(&net_message);
// save space for the header, filled in later
MSG_WriteLong(&net_message, 0);
MSG_WriteByte(&net_message, CCREP_SERVER_INFO);
dfunc.GetSocketAddr(acceptsock, &newaddr);
MSG_WriteString(&net_message, dfunc.AddrToString(&newaddr));
MSG_WriteString(&net_message, hostname.string);
MSG_WriteString(&net_message, sv.name);
MSG_WriteByte(&net_message, net_activeconnections);
MSG_WriteByte(&net_message, svs.maxclients);
MSG_WriteByte(&net_message, NET_PROTOCOL_VERSION);
*((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
dfunc.Write (acceptsock, net_message.data, net_message.cursize, &clientaddr);
SZ_Clear(&net_message);
return NULL;
}
if (command == CCREQ_PLAYER_INFO)
{
int playerNumber;
int activeNumber;
int clientNumber;
client_t *client;
playerNumber = MSG_ReadByte();
activeNumber = -1;
for (clientNumber = 0, client = svs.clients; clientNumber < svs.maxclients; clientNumber++, client++)
{
if (client->active)
{
activeNumber++;
if (activeNumber == playerNumber)
break;
}
}
if (clientNumber == svs.maxclients)
return NULL;
SZ_Clear(&net_message);
// save space for the header, filled in later
MSG_WriteLong(&net_message, 0);
MSG_WriteByte(&net_message, CCREP_PLAYER_INFO);
MSG_WriteByte(&net_message, playerNumber);
MSG_WriteString(&net_message, client->name);
MSG_WriteLong(&net_message, client->colors);
MSG_WriteLong(&net_message, (int)client->edict->v.frags);
MSG_WriteLong(&net_message, (int)(net_time - client->netconnection->connecttime));
MSG_WriteString(&net_message, client->netconnection->address);
*((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
dfunc.Write (acceptsock, net_message.data, net_message.cursize, &clientaddr);
SZ_Clear(&net_message);
return NULL;
}
if (command == CCREQ_RULE_INFO)
{
const char *prevCvarName;
cvar_t *var;
// find the search start location
prevCvarName = MSG_ReadString();
var = Cvar_FindVarAfter (prevCvarName, CVAR_SERVERINFO);
// send the response
SZ_Clear(&net_message);
// save space for the header, filled in later
MSG_WriteLong(&net_message, 0);
MSG_WriteByte(&net_message, CCREP_RULE_INFO);
if (var)
{
MSG_WriteString(&net_message, var->name);
MSG_WriteString(&net_message, var->string);
}
*((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
dfunc.Write (acceptsock, net_message.data, net_message.cursize, &clientaddr);
SZ_Clear(&net_message);
return NULL;
}
if (command != CCREQ_CONNECT)
return NULL;
if (Q_strcmp(MSG_ReadString(), "QUAKE") != 0)
return NULL;
if (MSG_ReadByte() != NET_PROTOCOL_VERSION)
{
SZ_Clear(&net_message);
// save space for the header, filled in later
MSG_WriteLong(&net_message, 0);
MSG_WriteByte(&net_message, CCREP_REJECT);
MSG_WriteString(&net_message, "Incompatible version.\n");
*((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
dfunc.Write (acceptsock, net_message.data, net_message.cursize, &clientaddr);
SZ_Clear(&net_message);
return NULL;
}
#ifdef BAN_TEST
// check for a ban
if (clientaddr.qsa_family == AF_INET)
{
in_addr_t testAddr;
testAddr = ((struct sockaddr_in *)&clientaddr)->sin_addr.s_addr;
if ((testAddr & banMask.s_addr) == banAddr.s_addr)
{
SZ_Clear(&net_message);
// save space for the header, filled in later
MSG_WriteLong(&net_message, 0);
MSG_WriteByte(&net_message, CCREP_REJECT);
MSG_WriteString(&net_message, "You have been banned.\n");
*((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
dfunc.Write (acceptsock, net_message.data, net_message.cursize, &clientaddr);
SZ_Clear(&net_message);
return NULL;
}
}
#endif
// see if this guy is already connected
for (s = net_activeSockets; s; s = s->next)
{
if (s->driver != net_driverlevel)
continue;
ret = dfunc.AddrCompare(&clientaddr, &s->addr);
if (ret >= 0)
{
// is this a duplicate connection reqeust?
if (ret == 0 && net_time - s->connecttime < 2.0)
{
// yes, so send a duplicate reply
SZ_Clear(&net_message);
// save space for the header, filled in later
MSG_WriteLong(&net_message, 0);
MSG_WriteByte(&net_message, CCREP_ACCEPT);
dfunc.GetSocketAddr(s->socket, &newaddr);
MSG_WriteLong(&net_message, dfunc.GetSocketPort(&newaddr));
*((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
dfunc.Write (acceptsock, net_message.data, net_message.cursize, &clientaddr);
SZ_Clear(&net_message);
return NULL;
}
// it's somebody coming back in from a crash/disconnect
// so close the old qsocket and let their retry get them back in
NET_Close(s);
return NULL;
}
}
// allocate a QSocket
sock = NET_NewQSocket ();
if (sock == NULL)
{
// no room; try to let him know
SZ_Clear(&net_message);
// save space for the header, filled in later
MSG_WriteLong(&net_message, 0);
MSG_WriteByte(&net_message, CCREP_REJECT);
MSG_WriteString(&net_message, "Server is full.\n");
*((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
dfunc.Write (acceptsock, net_message.data, net_message.cursize, &clientaddr);
SZ_Clear(&net_message);
return NULL;
}
// allocate a network socket
newsock = dfunc.Open_Socket(0);
if (newsock == INVALID_SOCKET)
{
NET_FreeQSocket(sock);
return NULL;
}
// connect to the client
if (dfunc.Connect (newsock, &clientaddr) == -1)
{
dfunc.Close_Socket(newsock);
NET_FreeQSocket(sock);
return NULL;
}
// everything is allocated, just fill in the details
sock->socket = newsock;
sock->landriver = net_landriverlevel;
sock->addr = clientaddr;
Q_strcpy(sock->address, dfunc.AddrToString(&clientaddr));
// send him back the info about the server connection he has been allocated
SZ_Clear(&net_message);
// save space for the header, filled in later
MSG_WriteLong(&net_message, 0);
MSG_WriteByte(&net_message, CCREP_ACCEPT);
dfunc.GetSocketAddr(newsock, &newaddr);
MSG_WriteLong(&net_message, dfunc.GetSocketPort(&newaddr));
// MSG_WriteString(&net_message, dfunc.AddrToString(&newaddr));
*((int *)net_message.data) = BigLong(NETFLAG_CTL | (net_message.cursize & NETFLAG_LENGTH_MASK));
dfunc.Write (acceptsock, net_message.data, net_message.cursize, &clientaddr);
SZ_Clear(&net_message);
return sock;
}
