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packet_functions.c
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packet_functions.c
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#include "functions.h"
static void PF_UserExit_f( char *in, struct sockaddr_in *info ) {
//Client aus dem Index löschen
for ( int i = 0; i < CLIENTS; i++ )
{
if ( !memcmp( &visionNetwork.remote, &visionNetwork.clients[i].con_info, sizeof( struct sockaddr_in ) ) && visionNetwork.clients[i].state > S_NONE )
{
char buf[BUF] = { 0 };
snprintf( buf, BUF, "%s ist vom visionNetwork getrennt", visionNetwork.clients[i].uinfo.name );
Z_CleanUser( &visionNetwork, i, buf, PRINT_UI );
Z_UserInfos();
break;
}
}
}
/*
connection 1 = new client - waiting for auth
connection 0 = already connected
*/
static void PF_Connection_f( char *in, struct sockaddr_in *info ) {
for ( int i = 0; i < CLIENTS; i++ )
{
if ( !memcmp( &visionNetwork.remote, &visionNetwork.clients[i].con_info, sizeof( struct sockaddr_in ) ) )
{
UDP_send( &visionNetwork.socket, "connection 0", 13, inet_ntoa( visionNetwork.clients[i].con_info.sin_addr ), ntohs( visionNetwork.clients[i].con_info.sin_port ) );
visionNetwork.clients[i].l_heartbeat = runTime();
return;
}
if ( visionNetwork.clients[i].state < S_CONNECT )
{
memcpy( &visionNetwork.clients[i], &visionNetwork.remote, sizeof( struct sockaddr_in ) );
UDP_send( &visionNetwork.socket, "connection 1", 13, inet_ntoa( visionNetwork.clients[i].con_info.sin_addr ), ntohs( visionNetwork.clients[i].con_info.sin_port ) );
visionNetwork.clients[i].l_heartbeat = runTime();
visionNetwork.clients[i].state = S_CONNECT;
return;
}
}
//Client zum Index hinzufügen
}
static void PF_Auth_f( char *in, struct sockaddr_in *info ) {
//Client nach password fragen
//Richtig: Erhält Chat, Heartbeat, Gamestate pakete
//Falsch: Wird aus Index entfernt, verhält sich wie Connection Paket
for ( int i = 0; i < CLIENTS; i++ )
{
if ( !memcmp( &visionNetwork.remote, &visionNetwork.clients[i].con_info, sizeof( struct sockaddr_in ) ) && visionNetwork.clients[i].state == S_CONNECT )
{
if ( !strncmp( in, ACCESS_KEY, strlen( ACCESS_KEY ) ) )//dummy
{
UDP_send( &visionNetwork.socket, "auth", 5, inet_ntoa( visionNetwork.clients[i].con_info.sin_addr ), ntohs( visionNetwork.clients[i].con_info.sin_port ) );
visionNetwork.clients[i].l_heartbeat = runTime();
visionNetwork.clients[i].state = S_AUTH;
break;
}
else
{
UDP_send( &visionNetwork.socket, "disconnect", 11, inet_ntoa( visionNetwork.clients[i].con_info.sin_addr ), ntohs( visionNetwork.clients[i].con_info.sin_port ) );
Z_CleanUser( &visionNetwork, i, NULL, PRINT_NONE );
Z_UserInfos();
break;
}
}
}
}
static void PF_Chat_f( char *in, struct sockaddr_in *info ) {
for ( int i = 0; i < CLIENTS; i++ )
{
if ( !memcmp( &visionNetwork.remote, &visionNetwork.clients[i].con_info, sizeof( struct sockaddr_in ) ) && visionNetwork.clients[i].state > S_CONNECT )
{
char buf[BUF] = { 0 };
int len;
if ( len = snprintf( &buf, BUF, "chat %s: %s", visionNetwork.clients[i].uinfo.name, in ) > 0 )
{
for ( int j = 0; j < CLIENTS && visionNetwork.clients[j].state == S_AUTH; j++ )
UDP_send( &visionNetwork.socket, buf, strlen( buf ) + 1, inet_ntoa( visionNetwork.clients[j].con_info.sin_addr ), ntohs( visionNetwork.clients[j].con_info.sin_port ) );
visionNetwork.clients[i].l_heartbeat = runTime();
}
break;
}
}
}
static void PF_Heartbeat_f( char *in, struct sockaddr_in *info ) {
//Lebst du noch oder bist du schon tot?
for ( int i = 0; i < CLIENTS; i++ )
{
if ( !memcmp( &visionNetwork.remote, &visionNetwork.clients[i].con_info, sizeof( struct sockaddr_in ) ) && visionNetwork.clients[i].state > S_NONE )
{
visionNetwork.clients[i].l_heartbeat = runTime();
visionNetwork.clients[i].h_req = 0;
break;
}
}
}
static void PF_Print_f( char *in, struct sockaddr_in *info )
{
for ( int i = 0; i < CLIENTS; i++ )
{
if ( !memcmp( &visionNetwork.remote, &visionNetwork.clients[i].con_info, sizeof( struct sockaddr_in ) ) && visionNetwork.clients[i].state > S_CONNECT )
{
char buf[BUF] = { 0 };
char *ptr = in;
int print_i = 0;
switch ( *ptr )
{
case '0':
ptr += 2;
print_i = 0;
break;
case '1':
ptr += 2;
print_i = 1;
break;
case '2':
ptr += 2;
print_i = 2;
break;
case NULL:
return;
default:
ptr += 2;
print_i = 0;
break;
}
if ( snprintf( &buf, BUF, "print %d %s", print_i, ptr ) > 0 )
{
for ( int j = 0; j < CLIENTS && visionNetwork.clients[j].state == S_AUTH; j++ )
UDP_send( &visionNetwork.socket, buf, strlen( buf ) + 1, inet_ntoa( visionNetwork.clients[j].con_info.sin_addr ), ntohs( visionNetwork.clients[j].con_info.sin_port ) );
visionNetwork.clients[i].l_heartbeat = runTime();
}
break;
}
}
}
static void PF_newInfo_f( char *in, struct sockaddr_in *info ) {
//Zum verschicken einzelner Daten (Hut, HP, Viewangles)
for ( int i = 0; i < CLIENTS; i++ )
{
if ( !memcmp( &visionNetwork.remote, &visionNetwork.clients[i].con_info, sizeof( struct sockaddr_in ) ) && visionNetwork.clients[i].state > S_NONE )
{
visionpacket_t packet;
H_Init_Packet( &packet, in, NULL );
visionNetwork.clients[i].uinfo.player.playerID = H_Read_Packet( &packet, V_SHORT );
visionNetwork.clients[i].uinfo.player.hat = H_Read_Packet( &packet, V_SHORT );
visionNetwork.clients[i].uinfo.player.health = H_Read_Packet( &packet, V_INTEGER32 );
visionNetwork.clients[i].uinfo.player.armor = H_Read_Packet( &packet, V_INTEGER32 );
visionNetwork.clients[i].uinfo.serverip.sin_addr.s_addr = (ULONG)H_Read_Packet( &packet, V_INTEGER32 );
visionNetwork.clients[i].uinfo.serverip.sin_port = (u_short)H_Read_Packet( &packet, V_SHORT );
for ( int j = 0; j < 64; j++ )
{
byte c = H_Read_Packet( &packet, V_CHAR );
if ( c == NULL )
break;
visionNetwork.clients[i].uinfo.servername[j] = c;
}
for ( int j = 0; j < 36; j++ )
{
byte c = H_Read_Packet( &packet, V_CHAR );
if ( c == NULL )
break;
visionNetwork.clients[i].uinfo.name[j] = c;
}
printf( "Userinfo[%d] eingetragen: name: %s, id: %hd, hat: %hd, health: %d, armor: %d, serverip: %s, port: %u Server: %s\n",
i,
visionNetwork.clients[i].uinfo.name,
visionNetwork.clients[i].uinfo.player.playerID,
visionNetwork.clients[i].uinfo.player.hat,
visionNetwork.clients[i].uinfo.player.health,
visionNetwork.clients[i].uinfo.player.armor,
inet_ntoa( visionNetwork.clients[i].uinfo.serverip.sin_addr ),
ntohs( visionNetwork.clients[i].uinfo.serverip.sin_port ),
visionNetwork.clients[i].uinfo.servername );
char buf[BUF] = { 0 };
if ( snprintf( &buf, BUF, "%s ist dem visionNetwork beigetreten", visionNetwork.clients[i].uinfo.name ) > 0 )
{
Z_Print( &buf, PRINT_UI );
}
Z_UserInfos();
break;
}
}
}
static void PF_GameState_f( char *in, struct sockaddr_in *info ) {
//Zum verschicken einzelner Daten (Hut, HP, Viewangles)
for ( int i = 0; i < CLIENTS; i++ )
{
if ( !memcmp( &visionNetwork.remote, &visionNetwork.clients[i].con_info, sizeof( struct sockaddr_in ) ) && visionNetwork.clients[i].state > S_CONNECT )
{
char buf[BUF] = { 0 };
visionpacket_t packet;
H_Init_Packet( &packet, in, NULL );
visionNetwork.clients[i].uinfo.player.health = H_Read_Packet( &packet, V_INTEGER32 );
visionNetwork.clients[i].uinfo.player.armor = H_Read_Packet( &packet, V_INTEGER32 );
visionNetwork.clients[i].uinfo.player.hat = H_Read_Packet( &packet, V_SHORT );
H_Init_Packet( &packet, buf, NULL );
H_Write_Packet( &packet, 'g', V_CHAR );
H_Write_Packet( &packet, 's', V_CHAR );
H_Write_Packet( &packet, ' ', V_CHAR );
for ( int i = 0; i < CLIENTS; i++ )
{
H_Write_Packet( &packet, visionNetwork.clients[i].uinfo.player.health, V_INTEGER32 );
H_Write_Packet( &packet, visionNetwork.clients[i].uinfo.player.armor, V_INTEGER32 );
H_Write_Packet( &packet, visionNetwork.clients[i].uinfo.player.hat, V_SHORT );
}
UDP_send( &visionNetwork.socket, packet.data, packet.currsize, inet_ntoa( visionNetwork.clients[i].con_info.sin_addr ), ntohs( visionNetwork.clients[i].con_info.sin_port ) );
break;
}
}
}
typedef struct packetfunc_s {
char *name;
void( *func )(char* data, struct sockaddr_in *info);
} packetfunc_t;
static packetfunc_t packetfuncs[] = {
{ "auth", PF_Auth_f }, // Authentifikation (Passwort Abfrage)
{ "connection", PF_Connection_f }, // Client verbindet sich
{ "chat", PF_Chat_f }, // Chat Nachricht
{ "print", PF_Print_f },
{ "cinfo", PF_newInfo_f },
{ "heartbeat", PF_Heartbeat_f }, // Überprüfen ob noch aktiv
{ "quit", PF_UserExit_f }, // Client hat das Spiel geschlossen
{ "gs", PF_GameState_f },
};
static const size_t max_packetfuncs = ARRAY_LEN( packetfuncs );
void PF_RunPacketCmd( char *in, struct sockaddr_in *info ) {
if ( in == NULL )
return;
char *cmd = strtok( in, " " );
for ( int i = 0; i < max_packetfuncs; i++ )
{
if ( !strncmp( cmd, packetfuncs[i].name, strlen( packetfuncs[i].name ) + 1 ) )
{
packetfuncs[i].func( in + strlen( packetfuncs[i].name ) + 1, &info );
}
}
}