How to get IP address from sockaddr

Question

I want to try and get the ip address of a client after calling accept. This is what I have so far, but I just end up getting some long number that is clearly not an ip addr

Answer 1

The following is taken from the example https://banu.com/blog/2/how-to-use-epoll-a-complete-example-in-c/epoll-example.c

              struct sockaddr in_addr;
              socklen_t in_len;
              int infd;
              char hbuf[NI_MAXHOST], sbuf[NI_MAXSERV];

              in_len = sizeof in_addr;
              infd = accept (sfd, &in_addr, &in_len);
              if (infd == -1)
                {
                  if ((errno == EAGAIN) ||
                      (errno == EWOULDBLOCK))
                    {
                      /* We have processed all incoming
                         connections. */
                      break;
                    }
                  else
                    {
                      perror ("accept");
                      break;
                    }
                }

                 s = getnameinfo (&in_addr, in_len,
                 hbuf, sizeof hbuf,
                 sbuf, sizeof sbuf,
                 NI_NUMERICHOST | NI_NUMERICSERV);
                 if (s == 0){
                     printf("Accepted connection on descriptor %d "
                         "(host=%s, port=%s)\n", infd, hbuf, sbuf);
                 }