IOS Domain Name resolution

Source: Internet
Author: User

How do I resolve a domain name under iOS?

/**

* Domain Name Resolution IP

*

* @param hostName Domain name

*

* @return IP

*/

+ (NSString *) Getipwithhostname: (const nsstring *) HostName

{

const char *hostn= [HostName utf8string];

struct hostent* phot;

@try {

Phot = gethostbyname (HOSTN);

}

@catch (NSException *exception) {

return nil;

}

struct IN_ADDR ip_addr;

memcpy (&IP_ADDR, Phot->h_addr_list[0], 4);

Char ip[20] = {0};

Inet_ntop (af_inet, &ip_addr, IP, sizeof (IP));

nsstring* stripaddress = [NSString Stringwithutf8string:ip];

return stripaddress;

}

NSString *ip = [domainnameresolution getipwithhostname:@ "www.baidu.com"];

NSLog (@ "%@", IP);

Printing results:

2016-08-21 10:31:57.653 domainnameresolution[1284:37374] 14.215.177.38

Demo Address: https://github.com/JnKindle/DomainNameResolution

IOS Domain Name resolution

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