public IPLocation Query(string ip)
{
if (!regex.Match(ip).Success)
{
throw new ArgumentException("IP格式错误");
}
IPLocation ipLocation = new IPLocation() { IP = ip };
long intIP = IpToInt(ip);
if ((intIP >= IpToInt("127.0.0.1") && (intIP <= IpToInt("127.255.255.255"))))
{
ipLocation.Country = "本机内部环回地址";
ipLocation.Local = "";
}
else
{
if ((((intIP >= IpToInt("0.0.0.0")) && (intIP <= IpToInt("2.255.255.255"))) || ((intIP >= IpToInt("64.0.0.0")) && (intIP <= IpToInt("126.255.255.255")))) ||
((intIP >= IpToInt("58.0.0.0")) && (intIP <= IpToInt("60.255.255.255"))))
{
ipLocation.Country = "网络保留地址";
ipLocation.Local = "";
}
}
long right = ipCount;
long left = 0L;
long middle = 0L;
long startIp = 0L;
long endIpOff = 0L;
long endIp = 0L;
int countryFlag = 0;
while (left < (right - 1L))
{
middle = (right + left) / 2L;
startIp = GetStartIp(middle, out endIpOff);
if (intIP == startIp)
{
left = middle;
break;
}
if (intIP > startIp)
{
left = middle;
}
else
{
right = middle;
}
}
startIp = GetStartIp(left, out endIpOff);
endIp = GetEndIp(endIpOff, out countryFlag);
if ((startIp <= intIP) && (endIp >= intIP))
{
string local;
ipLocation.Country = GetCountry(endIpOff, countryFlag, out local);
ipLocation.Local = local;
}
else
{
ipLocation.Country = "未知";
ipLocation.Local = "";
}
return ipLocation;
}
public IPLocation Query(string ip)
{
if (!regex.Match(ip).Success)
{
throw new ArgumentException("IP格式错误");
}
IPLocation ipLocation = new IPLocation()
{
IP = ip
};
long intIP = IpToInt(ip);
if ((intIP >= IpToInt("127.0.0.1") && (intIP <= IpToInt("127.255.255.255"))))
{
ipLocation.Country = "本机内部环回地址";
ipLocation.Local = "";
}
else
{
if ((((intIP >= IpToInt("0.0.0.0")) && (intIP <= IpToInt("2.255.255.255"))) || ((intIP >= IpToInt("64.0.0.0")) && (intIP <= IpToInt("126.255.255.255")))) ||
((intIP >= IpToInt("58.0.0.0")) && (intIP <= IpToInt("60.255.255.255"))))
{
ipLocation.Country = "网络保留地址";
ipLocation.Local = "";
}
}
long right = ipCount;
long left = 0L;
long middle = 0L;
long startIp = 0L;
long endIpOff = 0L;
long endIp = 0L;
int countryFlag = 0;
while (left < (right - 1L))
{
middle = (right + left) / 2L;
startIp = GetStartIp(middle, out endIpOff);
if (intIP == startIp)
{
left = middle;
break;
}
if (intIP > startIp)
{
left = middle;
}
else
{
right = middle;
}
}
startIp = GetStartIp(left, out endIpOff);
endIp = GetEndIp(endIpOff, out countryFlag);
if ((startIp <= intIP) && (endIp >= intIP))
{
string local;
ipLocation.Country = GetCountry(endIpOff, countryFlag, out local);
ipLocation.Local = local;
}
else
{
ipLocation.Country = "未知";
ipLocation.Local = "";
}
return(ipLocation);
}