"Jesus M. Gonzalez" <jgb@gsyc.inf.uc3m.es> writes:
> 	Hi!

Hola

> 	NetBSD returns an error when binding an UDP address where
> the host address matchs a local iface (instead of the more used
> INADDR_ANY). I'm not familar with the networking code,
> and I'm not sure if this is a bug or a feature... Could somebody
> tell me, so that I send-pr it if it is a bug?

It's not a bug, or perhaps it is.  The sockaddr_in needs to zeroed out
because a bit-by-bit comparison is done in `in_pcbbind' with
`ifa_ifwithaddr'

/assar

> #include <sys/types.h>
> #include <sys/socket.h>
> #include <netinet/in.h>
> #include <stdio.h>
> 
> main()
> {
>   int sock, length;
>   struct sockaddr_in name;
>   char buf[1024];
> 
>   /* Create socket from which to read. */
>   sock = socket(AF_INET, SOCK_DGRAM, 0);
>   if (sock < 0) {
>     perror("opening datagram socket");
>     exit(1);
>   }
>   /* Create name with wildcards. */

memset(&name, 0, sizeof(name));

>   name.sin_family = AF_INET;
>   name.sin_addr.s_addr = inet_addr("163.117.137.172"); /* Here your addr */
>   name.sin_port = 0;
>   if (bind(sock, (struct sockaddr *) &name, sizeof(name))) {
>     perror("binding datagram socket");
>     exit(1);
>   }
>   /* Find assigned port value and print it out. */
>   length = sizeof(name);
>   if (getsockname(sock, (struct sockaddr *) &name, &length)) {
>     perror("getting socket name");
>     exit(1);
>   }
>   close(sock);
> }