+
+bool socket_address_can_accept(const SocketAddress *a) {
+ assert(a);
+
+ return
+ a->type == SOCK_STREAM ||
+ a->type == SOCK_SEQPACKET;
+}
+
+bool socket_address_equal(const SocketAddress *a, const SocketAddress *b) {
+ assert(a);
+ assert(b);
+
+ /* Invalid addresses are unequal to all */
+ if (socket_address_verify(a) < 0 ||
+ socket_address_verify(b) < 0)
+ return false;
+
+ if (a->type != b->type)
+ return false;
+
+ if (a->size != b->size)
+ return false;
+
+ if (socket_address_family(a) != socket_address_family(b))
+ return false;
+
+ switch (socket_address_family(a)) {
+
+ case AF_INET:
+ if (a->sockaddr.in4.sin_addr.s_addr != b->sockaddr.in4.sin_addr.s_addr)
+ return false;
+
+ if (a->sockaddr.in4.sin_port != b->sockaddr.in4.sin_port)
+ return false;
+
+ break;
+
+ case AF_INET6:
+ if (memcmp(&a->sockaddr.in6.sin6_addr, &b->sockaddr.in6.sin6_addr, sizeof(a->sockaddr.in6.sin6_addr)) != 0)
+ return false;
+
+ if (a->sockaddr.in6.sin6_port != b->sockaddr.in6.sin6_port)
+ return false;
+
+ break;
+
+ case AF_UNIX:
+
+ if ((a->sockaddr.un.sun_path[0] == 0) != (b->sockaddr.un.sun_path[0] == 0))
+ return false;
+
+ if (a->sockaddr.un.sun_path[0]) {
+ if (strncmp(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, sizeof(a->sockaddr.un.sun_path)) != 0)
+ return false;
+ } else {
+ if (memcmp(a->sockaddr.un.sun_path, b->sockaddr.un.sun_path, sizeof(a->sockaddr.un.sun_path)) != 0)
+ return false;
+ }
+
+ break;
+
+ default:
+ /* Cannot compare, so we assume the addresses are different */
+ return false;
+ }
+
+ return true;
+}
+
+bool socket_address_is(const SocketAddress *a, const char *s) {
+ struct SocketAddress b;
+
+ assert(a);
+ assert(s);
+
+ if (socket_address_parse(&b, s) < 0)
+ return false;
+
+ return socket_address_equal(a, &b);
+}
+
+bool socket_address_needs_mount(const SocketAddress *a, const char *prefix) {
+ assert(a);
+
+ if (socket_address_family(a) != AF_UNIX)
+ return false;
+
+ if (a->sockaddr.un.sun_path[0] == 0)
+ return false;
+
+ return path_startswith(a->sockaddr.un.sun_path, prefix);
+}