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SubjectRe: GETHOSTBYNAME()

hi,
i dont think there is one similar to gethostbyname in the
kernel-space. I do think so because most of the work done by
gethostbyname is based on the nameservices and is generally not required
in the kernel-space. Implementing it should not be that big a problem.
once you have the IP of the name server (/etc/resolve.conf???) you can
always connect to it and get the IP of the given host.

Prasad.


On Mon, 24 Mar 2003, shesha bhushan wrote:

> Hi All
> I am trying to find the gethostbyname() equivalent function in kernel space.
> Does any one know that.
> The reason is...
> I am using UDP to transfer data from one machine to another. It is not one
> time transfer. Once I get a message from machine A; I need to send some
> message back to Machine A from Machine B. For that I was using the following
> lines in user space program. I need to do the same in kernel space. Could
> any one help me out in this.
>
> struct hostent *data;
> struct sockaddr_in server;
> int sock;
>
> sock = socket(AF_INET, SOCK_DGRAM , 0)
>
> /* binding and all are done here */
>
> data = gethostbyname("158.168.1.1");
> memcpy (&server.sin_addrs, data->h_addr, data->h_length);
> retval = sendto(sock,msg,sizeof(msg), 0, (struct sockaddr *) &server,
> sizeof server);
>
>
> Thanking You
> Shesha
>
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