X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fshared%2Fdbus-common.h;h=9ae35df9c515376edc38756604f9d4f39e485b17;hp=859812900dec6288f769102b8db5ffbcc81305d0;hb=32c4bef8826f1231984d735944cb02a01d21177a;hpb=f8e2fb7b14e53f5a4bcfd66d26910af1dee185c6

diff --git a/src/shared/dbus-common.h b/src/shared/dbus-common.h
index 859812900..9ae35df9c 100644
--- a/src/shared/dbus-common.h
+++ b/src/shared/dbus-common.h
@@ -91,6 +91,7 @@ int bus_connect_system_ssh(const char *user, const char *host, DBusConnection **
 int bus_connect_system_polkit(DBusConnection **_bus, DBusError *error);
 
 const char *bus_error_message(const DBusError *error);
+const char *bus_error_message_or_strerror(const DBusError *error, int err);
 
 typedef int (*BusPropertyCallback)(DBusMessageIter *iter, const char *property, void *data);
 typedef int (*BusPropertySetCallback)(DBusMessageIter *iter, const char *property, void *data);
@@ -155,7 +156,7 @@ int bus_property_set_uint64(DBusMessageIter *i, const char *property, void *data
                 assert(i);                                              \
                 assert(property);                                       \
                                                                         \
-                value = name##_to_string(*field);                       \
+                value = strempty(name##_to_string(*field));             \
                                                                         \
                 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &value)) \
                         return -ENOMEM;                                 \
@@ -166,15 +167,18 @@ int bus_property_set_uint64(DBusMessageIter *i, const char *property, void *data
 #define DEFINE_BUS_PROPERTY_SET_ENUM(function,name,type)                \
         int function(DBusMessageIter *i, const char *property, void *data) { \
                 const char *value;                                      \
-                type *field = data;                                     \
+                type f, *field = data;                                  \
                                                                         \
                 assert(i);                                              \
                 assert(property);                                       \
                                                                         \
                 dbus_message_iter_get_basic(i, &value);                 \
                                                                         \
-                *field = name##_from_string(value);                     \
+                f = name##_from_string(value);                          \
+                if (f < 0)                                              \
+                        return f;                                       \
                                                                         \
+                *field = f;                                             \
                 return 0;                                               \
         }