Re: Remote host name

[Ron Michael Khu <ronkhu@ntsp.nec.co.jp>]

use gethostbyname().....

example:
gethostname( strVariable, len );
printf( "hostname: %s\n", strVariable );

gethostbyname(), on the other hand, is for returning the equivalent ip 
address of  the specified name..
hence the name "gethostbyname"...



HIToC wrote:

>Hi all.
>I am writing a function that returns the name of the remote host which we are
>connected to. About the remote host I only know its IP address...I have tried
>to use function "gethostbyname" passing for argument the IP address in
>standard dot notation:
>
>[man 3 gethostbyname: The gethostbyname() function returns a structure of 
>type hostent for the given host name. Here name is either a host name, or
>an IPv4 address in standard dot notation, or an IPv6 address in colon
>(and possibly dot) notation.]
>
>
>struct sockaddr_in destination;
>
>char* get_remote_host_name()
>{
>  hostent* remote_host_information;
>  char* host_IP;
>
>  host_IP =  inet_ntoa(destination.sin_addr);
>  remote_host_information = gethostbyname(host_IP);
>
>  return remote_host_information->h_name;
>}
>
>
>This function returns the IP address of the remote host, not its (DNS) name!
>Can anybody help me?
>  
>