-char *addr2string(struct sockaddr *addr) {
- struct sockaddr_in6 *sa6;
- struct sockaddr_in sa4;
- static char addr_buf[2][INET6_ADDRSTRLEN];
- static int i = 0;
- i = !i;
- if (addr->sa_family == AF_INET6) {
- sa6 = (struct sockaddr_in6 *)addr;
- if (IN6_IS_ADDR_V4MAPPED(&sa6->sin6_addr)) {
- memset(&sa4, 0, sizeof(sa4));
- sa4.sin_family = AF_INET;
- sa4.sin_port = sa6->sin6_port;
- memcpy(&sa4.sin_addr, &sa6->sin6_addr.s6_addr[12], 4);
- addr = (struct sockaddr *)&sa4;
- }
- }
- if (getnameinfo(addr, SOCKADDRP_SIZE(addr), addr_buf[i], sizeof(addr_buf[i]),
- NULL, 0, NI_NUMERICHOST)) {
- debug(DBG_WARN, "getnameinfo failed");
- return "getnameinfo_failed";
- }
- return addr_buf[i];
-}
-
-#if 0
-/* not in use */
-int connectport(int type, char *host, char *port) {
- struct addrinfo hints, *res0, *res;
- int s = -1;
-
- memset(&hints, 0, sizeof(hints));
- hints.ai_socktype = type;
- hints.ai_family = AF_UNSPEC;
-
- if (getaddrinfo(host, port, &hints, &res0) != 0) {
- debug(DBG_ERR, "connectport: can't resolve host %s port %s", host, port);
- return -1;
- }
-
- for (res = res0; res; res = res->ai_next) {
- s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
- if (s < 0) {
- debug(DBG_WARN, "connectport: socket failed");
- continue;
- }
- if (connect(s, res->ai_addr, res->ai_addrlen) == 0)
- break;
- debug(DBG_WARN, "connectport: connect failed");
- close(s);
- s = -1;
- }
- freeaddrinfo(res0);
- return s;
-}
-#endif
-
-int bindtoaddr(struct addrinfo *addrinfo, int family, int reuse, int v6only) {
- int s, on = 1;
- struct addrinfo *res;
-
- for (res = addrinfo; res; res = res->ai_next) {
- if (family != AF_UNSPEC && family != res->ai_family)
- continue;
- s = socket(res->ai_family, res->ai_socktype, res->ai_protocol);
- if (s < 0) {
- debug(DBG_WARN, "bindtoaddr: socket failed");
- continue;
- }
- if (reuse)
- setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &on, sizeof(on));
- #ifdef IPV6_V6ONLY
- if (v6only)
- setsockopt(s, IPPROTO_IPV6, IPV6_V6ONLY, &on, sizeof(on));
- #endif
- if (!bind(s, res->ai_addr, res->ai_addrlen))
- return s;
- debug(DBG_WARN, "bindtoaddr: bind failed");
- close(s);
- }
- return -1;
-}