Function get_socket

components/net/lwip/lwip-2.1.2/src/api/sockets.c:497–509

* Map a externally used socket index to the internal socket representation. * * @param fd externally used socket index * @return struct lwip_sock for the socket or NULL if not found */

 * @return struct lwip_sock for the socket or NULL if not found
 */
static struct lwip_sock *
get_socket(int fd)
{
  struct lwip_sock *sock = tryget_socket(fd);
  if (!sock) {
    if ((fd < LWIP_SOCKET_OFFSET) || (fd >= (LWIP_SOCKET_OFFSET + NUM_SOCKETS))) {
      LWIP_DEBUGF(SOCKETS_DEBUG, ("get_socket(%d): invalid\n", fd));
    }
    set_errno(EBADF);
    return NULL;
  }
  return sock;
}

/**
 * Allocate a new socket for a given netconn.