ios中域名转换为ip地址

ios中域名转换为ip地址

2013-01-29 16:06  863人阅读  评论(0)  收藏  举报

版权声明：本文为博主原创文章，未经博主允许不得转载。

 #include
 #include

 - (void)viewDidLoad
 {
     [super viewDidLoad];
 "white-space:pre">  // Do any additional setup after loading the view, typically from a nib.
     NSString *webSiteString = @"www.baidu.com";

     //NSString to char*
     const char *webSite = [webSiteString cStringUsingEncoding:NSASCIIStringEncoding];

     // Get host entry info for given host
     struct hostent *remoteHostEnt = gethostbyname(webSite);

     // Get address info from host entry
     struct in_addr *remoteInAddr = (struct in_addr *) remoteHostEnt->h_addr_list[0];

     // Convert numeric addr to ASCII string
     char *sRemoteInAddr = inet_ntoa(*remoteInAddr);

     //char* to NSString
     NSString *ip = [[[NSString alloc] initWithCString:sRemoteInAddr
                                             encoding:NSASCIIStringEncoding] autorelease];
     NSLog(@"ip:%@",ip);
 }