Hi Christian.
It solved the problem. Thank you so much! :-)
This is the updated version of the function, if someone need it:
int get_ip(const void *socket, char *buf, size_t size) {
const struct sockaddr *sa;
const void *addr6;
size_t len;
if (!socket || !buf || (ssize_t) size < 0)
return EINVAL;
sa = socket;
if (sa->sa_family == AF_INET6) {
addr6 = &(((struct sockaddr_in6 *) sa)->sin6_addr);
if (!inet_ntop(AF_INET6, addr6, buf, size))
return errno;
len = strlen("::ffff:");
if (IN6_IS_ADDR_V4MAPPED(addr6) && (size > len))
memcpy(buf, buf + len, strlen(buf + len) + 1);
return 0;
}
if (!inet_ntop(AF_INET, &(((struct sockaddr_in *) sa)->sin_addr), buf,
size))
return errno;
return 0;
}
Thank you!
On Thu, Nov 28, 2019 at 5:02 PM Christian Grothoff <[email protected]>
wrote:
> Hi silvioprog,
>
> Have you considered simply using
>
> IN6_IS_ADDR_V4MAPPED
>
> on the v6 address, and if it matches, extracting the mapped v4 address?
>
> Happy hacking!
>
> Christian
--
Silvio Clécio
