--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "bus-message-util.h"
+
+int bus_message_read_family(sd_bus_message *message, sd_bus_error *error, int *ret) {
+ int family, r;
+
+ assert(message);
+ assert(ret);
+
+ assert_cc(sizeof(int) == sizeof(int32_t));
+
+ r = sd_bus_message_read(message, "i", &family);
+ if (r < 0)
+ return r;
+
+ if (!IN_SET(family, AF_INET, AF_INET6))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown address family %i", family);
+
+ *ret = family;
+ return 0;
+}
+
+int bus_message_read_in_addr_auto(sd_bus_message *message, sd_bus_error *error, int *ret_family, union in_addr_union *ret_addr) {
+ int family, r;
+ const void *d;
+ size_t sz;
+
+ assert(message);
+
+ r = sd_bus_message_read(message, "i", &family);
+ if (r < 0)
+ return r;
+
+ r = sd_bus_message_read_array(message, 'y', &d, &sz);
+ if (r < 0)
+ return r;
+
+ if (!IN_SET(family, AF_INET, AF_INET6))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown address family %i", family);
+
+ if (sz != FAMILY_ADDRESS_SIZE(family))
+ return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid address size");
+
+ if (ret_family)
+ *ret_family = family;
+ if (ret_addr)
+ memcpy(ret_addr, d, sz);
+ return 0;
+}
--- /dev/null
+/* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
+
+#include "sd-bus.h"
+
+#include "in-addr-util.h"
+
+int bus_message_read_family(sd_bus_message *message, sd_bus_error *error, int *ret);
+int bus_message_read_in_addr_auto(sd_bus_message *message, sd_bus_error *error, int *ret_family, union in_addr_union *ret_addr);