-/**
- * sockaddr_set_address
- *
- * This function takes a sockaddr struct and fills in the protocol type,
- * the port number and the address. If ENABLE_IPV6 is defined, the sa
- * parameter should point to a sockaddr_storage structure; if not, it
- * should point to a sockaddr_in structure.
- * If the address parameter is NULL, the function will use the unspecified
- * address (0.0.0.0 for IPv4 and :: for IPv6).
- * Unsupported address family will abort the whole programm.
- *
- * Input:
- * struct sockaddr* The space to be filled
- * unsigned short The port
- * const ip_address The IP address
- *
- * Return:
- * - Only modifies 1st parameter.
- */
-void
-sockaddr_set_address (struct sockaddr *sa, unsigned short port,
- const ip_address *addr)
-{
- if (addr->type == IPV4_ADDRESS)
- {
- struct sockaddr_in *sin = (struct sockaddr_in *)sa;
-
- sin->sin_family = AF_INET;
- sin->sin_port = htons (port);
- if (addr == NULL)
- sin->sin_addr.s_addr = INADDR_ANY;
- else
- sin->sin_addr = ADDRESS_IPV4_IN_ADDR (addr);
- }
-#ifdef ENABLE_IPV6
- else if (addr->type == IPV6_ADDRESS)
- {
- struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
-
- sin6->sin6_family = AF_INET6;
- sin6->sin6_port = htons (port);
- /* #### How can ADDR be NULL? We have dereferenced it above by
- accessing addr->type! */
- if (addr == NULL)
- {
- sin6->sin6_addr = in6addr_any;
- /* #### Should we set the scope_id here? */
- }
- else
- {
- sin6->sin6_addr = ADDRESS_IPV6_IN6_ADDR (addr);
-#ifdef HAVE_SOCKADDR_IN6_SCOPE_ID
- sin6->sin6_scope_id = ADDRESS_IPV6_SCOPE (addr);
-#endif
- }
- }
-#endif /* ENABLE_IPV6 */
- else
- abort ();
-}
-
-void
-sockaddr_get_address (const struct sockaddr *sa, unsigned short *port,
- ip_address *addr)
-{
- if (sa->sa_family == AF_INET)
- {
- struct sockaddr_in *sin = (struct sockaddr_in *)sa;
-
- addr->type = IPV4_ADDRESS;
- ADDRESS_IPV4_IN_ADDR (addr) = sin->sin_addr;
- if (port != NULL)
- *port = ntohs (sin->sin_port);
- }
-#ifdef ENABLE_IPV6
- else if (sa->sa_family == AF_INET6)
- {
- struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
-
- addr->type = IPV6_ADDRESS;
- ADDRESS_IPV6_IN6_ADDR (addr) = sin6->sin6_addr;
-#ifdef HAVE_SOCKADDR_IN6_SCOPE_ID
- ADDRESS_IPV6_SCOPE (addr) = sin6->sin6_scope_id;
-#endif
- if (port != NULL)
- *port = ntohs (sin6->sin6_port);
- }
-#endif
- else
- abort ();
-}
-
-#if 0 /* currently unused */
-/**
- * sockaddr_set_port
- *
- * This funtion only fill the port of the socket information.
- * If the protocol is not supported nothing is done.
- * Unsuported adress family will abort the whole programm.
- *
- * Require:
- * that the IP-Protocol already is set.
- *
- * Input:
- * wget_sockaddr* The space there port should be entered
- * unsigned int The port that should be entered in host order
- *
- * Return:
- * - Only modify 1. param
- */
-void
-sockaddr_set_port (struct sockaddr *sa, unsigned short port)
-{
- if (sa->sa_family == AF_INET)
- {
- struct sockaddr_in *sin = (struct sockaddr_in *)sa;
- sin->sin_port = htons (port);
- }
-#ifdef ENABLE_IPV6
- else if (sa->sa_family == AF_INET6)
- {
- struct sockaddr_in6 *sin6 = (struct sockaddr_in6 *)sa;
- sin6->sin6_port = htons (port);
- }
-#endif
- else
- abort ();
-}
-#endif
-
-/**
- * sockaddr_get_port
- *
- * This function only return the port from the input structure
- * Unsuported adress family will abort the whole programm.
- *
- * Require:
- * that the IP-Protocol already is set.
- *
- * Input:
- * wget_sockaddr* Information where to get the port
- *
- * Output:
- * unsigned short Port Number in host order.
- */
-unsigned short
-sockaddr_get_port (const struct sockaddr *sa)
-{
- if (sa->sa_family == AF_INET) {
- const struct sockaddr_in *sin = (const struct sockaddr_in *)sa;
- return htons (sin->sin_port);
-#ifdef ENABLE_IPV6
- } else if (sa->sa_family == AF_INET6) {
- const struct sockaddr_in6 *sin6 = (const struct sockaddr_in6 *)sa;
- return htons (sin6->sin6_port);
-#endif
- } else
- abort ();
- /* do not complain about return nothing */
- return -1;
-}
-
-/**
- * sockaddr_len
- *
- * This function return the length of the sockaddr corresponding to
- * the acutall prefered protocol for (bind, connect etc...)
- * Unsuported adress family will abort the whole programm.
- *
- * Require:
- * that the IP-Protocol already is set.
- *
- * Input:
- * - Public IP-Family Information
- *
- * Output:
- * int structure length for socket options
- */
-socklen_t
-sockaddr_len (const struct sockaddr *sa)
-{
- if (sa->sa_family == AF_INET)
- {
- return sizeof (struct sockaddr_in);
- }
-#ifdef ENABLE_IPV6
- else if (sa->sa_family == AF_INET6)
- {
- return sizeof (struct sockaddr_in6);
- }
-#endif
- else
- abort ();
- /* do not complain about return nothing */
- return 0;
-}
-\f