static void nwsign(char *r_data1, char *r_data2, char *outdata) {
int i;
unsigned int w0,w1,w2,w3;
static int rbit[4]={0, 2, 1, 3};
#ifdef __i386__
unsigned int *data2=(int *)r_data2;
#else
unsigned int data2[16];
for (i=0;i<16;i++)
data2[i]=GET_LE32(r_data2+(i<<2));
#endif
w0=GET_LE32(r_data1);
w1=GET_LE32(r_data1+4);
w2=GET_LE32(r_data1+8);
w3=GET_LE32(r_data1+12);
for (i=0;i<16;i+=4) {
w0=rol32(w0 + ((w1 & w2) | ((~w1) & w3)) + data2[i+0],3);
w3=rol32(w3 + ((w0 & w1) | ((~w0) & w2)) + data2[i+1],7);
w2=rol32(w2 + ((w3 & w0) | ((~w3) & w1)) + data2[i+2],11);
w1=rol32(w1 + ((w2 & w3) | ((~w2) & w0)) + data2[i+3],19);
}
for (i=0;i<4;i++) {
w0=rol32(w0 + (((w2 | w3) & w1) | (w2 & w3)) + 0x5a827999 + data2[i+0],3);
w3=rol32(w3 + (((w1 | w2) & w0) | (w1 & w2)) + 0x5a827999 + data2[i+4],5);
w2=rol32(w2 + (((w0 | w1) & w3) | (w0 & w1)) + 0x5a827999 + data2[i+8],9);
w1=rol32(w1 + (((w3 | w0) & w2) | (w3 & w0)) + 0x5a827999 + data2[i+12],13);
}
for (i=0;i<4;i++) {
w0=rol32(w0 + ((w1 ^ w2) ^ w3) + 0x6ed9eba1 + data2[rbit[i]+0],3);
w3=rol32(w3 + ((w0 ^ w1) ^ w2) + 0x6ed9eba1 + data2[rbit[i]+8],9);
w2=rol32(w2 + ((w3 ^ w0) ^ w1) + 0x6ed9eba1 + data2[rbit[i]+4],11);
w1=rol32(w1 + ((w2 ^ w3) ^ w0) + 0x6ed9eba1 + data2[rbit[i]+12],15);
}
PUT_LE32(outdata,(w0+GET_LE32(r_data1)) & 0xffffffff);
PUT_LE32(outdata+4,(w1+GET_LE32(r_data1+4)) & 0xffffffff);
PUT_LE32(outdata+8,(w2+GET_LE32(r_data1+8)) & 0xffffffff);
PUT_LE32(outdata+12,(w3+GET_LE32(r_data1+12)) & 0xffffffff);
}
/* packet. */
void sign_packet(struct ncp_server *server, int *size) {
char data[64];
memset(data,0,64);
memcpy(data,server->sign_root,8);
PUT_LE32(data+8,(*size));
memcpy(data+12,server->packet+sizeof(struct ncp_request_header)-1,
min((*size)-sizeof(struct ncp_request_header)+1,52));
nwsign(server->sign_last,data,server->sign_last);
memcpy(server->packet+(*size),server->sign_last,8);
(*size)+=8;
}
void GameClient::HandleUpdateAccountData (CMSG_UPDATE_ACCOUNT_DATA_t &inpkt)
{
if (!Character)
return;
uint8 **pdata;
if (inpkt.FileIndex <= 2)
pdata = &AccountData [inpkt.FileIndex];
else if (inpkt.FileIndex <= 4)
pdata = &Character->AccountData [inpkt.FileIndex - 3];
else
return;
// Uncompress the data to check integrity and compute MD5
uint8 *tmp = new uint8 [inpkt.UncompressedSize];
uLongf tmplen = inpkt.UncompressedSize;
if (tmplen &&
uncompress (tmp, &tmplen, inpkt.CompressedData, inpkt.CompressedData_Size) != Z_OK)
{
delete [] tmp;
return;
}
uint datasize = sizeof (uint32) * 2 + 16 + inpkt.CompressedData_Size;
uint8 *data = new uint8 [datasize];
delete [] *pdata;
*pdata = data;
PUT_LE32 (data, inpkt.UncompressedSize);
PUT_LE32 (data + 4, inpkt.CompressedData_Size);
MD5 (tmp, inpkt.UncompressedSize, data + 8);
memcpy (data + 24, inpkt.CompressedData, inpkt.CompressedData_Size);
delete [] tmp;
}
