socket-util: rename parse_socket_address_bind_ipv6_only_or_bool() to socket_address_bind_ipv6_only_or_bool_from_string()

Hence, we can define config_parse_socket_bind() by using
DEFINE_CONFIG_PARSE_ENUM() macro.

src/basic/socket-util.c

@@ -790,7 +790,7 @@ static const char* const socket_address_bind_ipv6_only_table[_SOCKET_ADDRESS_BIN
 
 DEFINE_STRING_TABLE_LOOKUP(socket_address_bind_ipv6_only, SocketAddressBindIPv6Only);
 
-SocketAddressBindIPv6Only parse_socket_address_bind_ipv6_only_or_bool(const char *n) {
+SocketAddressBindIPv6Only socket_address_bind_ipv6_only_or_bool_from_string(const char *n) {
         int r;
 
         r = parse_boolean(n);

src/basic/socket-util.h

@@ -116,7 +116,7 @@ int socknameinfo_pretty(union sockaddr_union *sa, socklen_t salen, char **_ret);
 
 const char* socket_address_bind_ipv6_only_to_string(SocketAddressBindIPv6Only b) _const_;
 SocketAddressBindIPv6Only socket_address_bind_ipv6_only_from_string(const char *s) _pure_;
-SocketAddressBindIPv6Only parse_socket_address_bind_ipv6_only_or_bool(const char *s);
+SocketAddressBindIPv6Only socket_address_bind_ipv6_only_or_bool_from_string(const char *s);
 
 int netlink_family_to_string_alloc(int b, char **s);
 int netlink_family_from_string(const char *s) _pure_;

src/core/dbus-socket.c

@@ -152,7 +152,7 @@ static inline const char* socket_protocol_to_name_supported(int32_t i) {
 static BUS_DEFINE_SET_TRANSIENT(int, "i", int32_t, int, "%" PRIi32);
 static BUS_DEFINE_SET_TRANSIENT(message_queue, "x", int64_t, long, "%" PRIi64);
 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(size_t_check_truncation, "t", uint64_t, size_t, "%" PRIu64, check_size_t_truncation);
-static BUS_DEFINE_SET_TRANSIENT_PARSE(bind_ipv6_only, SocketAddressBindIPv6Only, parse_socket_address_bind_ipv6_only_or_bool);
+static BUS_DEFINE_SET_TRANSIENT_PARSE(bind_ipv6_only, SocketAddressBindIPv6Only, socket_address_bind_ipv6_only_or_bool_from_string);
 static BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(fdname, fdname_is_valid);
 static BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(ifname, ifname_valid);
 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(ip_tos, "i", int32_t, int, "%" PRIi32, ip_tos_to_string_alloc);

src/core/load-fragment-gperf.gperf.m4

@@ -331,7 +331,7 @@ Socket.ListenSpecial,            config_parse_socket_listen,         SOCKET_SPEC
 Socket.ListenMessageQueue,       config_parse_socket_listen,         SOCKET_MQUEUE,                 0
 Socket.ListenUSBFunction,        config_parse_socket_listen,         SOCKET_USB_FUNCTION,           0
 Socket.SocketProtocol,           config_parse_socket_protocol,       0,                             0
-Socket.BindIPv6Only,             config_parse_socket_bind,           0,                             0,
+Socket.BindIPv6Only,             config_parse_socket_bind,           0,                             offsetof(Socket, bind_ipv6_only)
 Socket.Backlog,                  config_parse_unsigned,              0,                             offsetof(Socket, backlog)
 Socket.BindToDevice,             config_parse_socket_bindtodevice,   0,                             0
 Socket.ExecStartPre,             config_parse_exec,                  SOCKET_EXEC_START_PRE,         offsetof(Socket, exec_command)

src/core/load-fragment.c

@@ -438,37 +438,7 @@ int config_parse_socket_protocol(const char *unit,
         return 0;
 }
 
-int config_parse_socket_bind(const char *unit,
-                             const char *filename,
-                             unsigned line,
-                             const char *section,
-                             unsigned section_line,
-                             const char *lvalue,
-                             int ltype,
-                             const char *rvalue,
-                             void *data,
-                             void *userdata) {
-
-        Socket *s;
-        SocketAddressBindIPv6Only b;
-
-        assert(filename);
-        assert(lvalue);
-        assert(rvalue);
-        assert(data);
-
-        s = SOCKET(data);
-
-        b = parse_socket_address_bind_ipv6_only_or_bool(rvalue);
-        if (b < 0) {
-                log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse bind IPv6 only value, ignoring: %s", rvalue);
-                return 0;
-        }
-
-        s->bind_ipv6_only = b;
-
-        return 0;
-}
+DEFINE_CONFIG_PARSE_ENUM(config_parse_socket_bind, socket_address_bind_ipv6_only_or_bool, SocketAddressBindIPv6Only, "Failed to parse bind IPv6 only value");
 
 int config_parse_exec_nice(
                 const char *unit,