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; }