如何在iOS下进行域名的解析？
/**
* 域名解析ip
*
* @param hostName 域名
*
* @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);
打印结果：
2016-08-21 10:31:57.653 DomainNameResolution[1284:37374] 14.215.177.38
Demo地址：https://github.com/JnKindle/DomainNameResolution