X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Flibelogind%2Fsd-bus%2Fbus-gvariant.c;h=402d43d66d7221eb2b78ae6907b5f2e88c3beb16;hp=2d18a4e6c19706b8ad296e97f0958be33facce0d;hb=133c3e1cd0fa015721410e0f06de6ed7f415d067;hpb=d455a7ccd53c158fc6ef51ee4b5ba8d34f7794f4

diff --git a/src/libelogind/sd-bus/bus-gvariant.c b/src/libelogind/sd-bus/bus-gvariant.c
index 2d18a4e6c..402d43d66 100644
--- a/src/libelogind/sd-bus/bus-gvariant.c
+++ b/src/libelogind/sd-bus/bus-gvariant.c
@@ -75,14 +75,19 @@ int bus_gvariant_get_size(const char *signature) {
 
                 case SD_BUS_TYPE_STRUCT_BEGIN:
                 case SD_BUS_TYPE_DICT_ENTRY_BEGIN: {
-                        char t[n-1];
-
-                        memcpy(t, p + 1, n - 2);
-                        t[n - 2] = 0;
-
-                        r = bus_gvariant_get_size(t);
-                        if (r < 0)
-                                return r;
+                        if (n == 2) {
+                                /* unary type () has fixed size of 1 */
+                                r = 1;
+                        } else {
+                                char t[n-1];
+
+                                memcpy(t, p + 1, n - 2);
+                                t[n - 2] = 0;
+
+                                r = bus_gvariant_get_size(t);
+                                if (r < 0)
+                                        return r;
+                        }
 
                         sum += r;
                         break;