+
+bool socket_ipv6_is_supported(void) {
+ char *l = 0;
+ bool enabled;
+
+ if (access("/sys/module/ipv6", F_OK) != 0)
+ return 0;
+
+ /* If we can't check "disable" parameter, assume enabled */
+ if (read_one_line_file("/sys/module/ipv6/parameters/disable", &l) < 0)
+ return 1;
+
+ /* If module was loaded with disable=1 no IPv6 available */
+ enabled = l[0] == '0';
+ free(l);
+
+ return enabled;
+}
+
+static const char* const socket_address_bind_ipv6_only_table[_SOCKET_ADDRESS_BIND_IPV6_ONLY_MAX] = {
+ [SOCKET_ADDRESS_DEFAULT] = "default",
+ [SOCKET_ADDRESS_BOTH] = "both",
+ [SOCKET_ADDRESS_IPV6_ONLY] = "ipv6-only"
+};
+
+DEFINE_STRING_TABLE_LOOKUP(socket_address_bind_ipv6_only, SocketAddressBindIPv6Only);