From: Robert Bunn <adalger@...>
Date: 2005-06-30T21:40:42+09:00
Subject: Re: hostent problem


<games60@hotmail.com> wrote in message
news:1120131331.929300.236040@f14g2000cwb.googlegroups.com...
> Hi,
> I want to get the IP address of my machine in my program and for that
i
> have written the following code.
> I don't know why the gethostbyname() is not returning the correct
> hostent structure.
>
> hp = new hostent[];

I think this shouldn't compile, and MinGW agrees. You can't omit the
size of an array allocated using new. You don't want to allocate it
anyway. You just want a pointer:

hostent* hp;

> TCHAR str[MAX_COMPUTERNAME_LENGTH+1];
> TCHAR result[MAX_COMPUTERNAME_LENGTH+1];
>
> GetComputerName(str,&len);
> hp = gethostbyname(str);
> if(hp!=NULL)
> {
>      memcpy(result, hp->h_name, sizeof(result));
>                 OR
>      result=(TCHAR*)hp->h_name;
> }
>
> The result that i am getting the hp=NULL.