解析域名得到IP

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• 分享型別：遊戲開發相關

#include <netdb.h> 
#include <sys/socket.h> 
 
 
-(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; 
}