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-rw-r--r--src/libsystemd-bus/bus-message.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/src/libsystemd-bus/bus-message.c b/src/libsystemd-bus/bus-message.c
index 8113744227..b86ef96f83 100644
--- a/src/libsystemd-bus/bus-message.c
+++ b/src/libsystemd-bus/bus-message.c
@@ -2026,7 +2026,7 @@ static int bus_message_close_struct(sd_bus_message *m, struct bus_container *c,
if (!BUS_MESSAGE_IS_GVARIANT(m))
return 0;
- p = c->signature;
+ p = strempty(c->signature);
while (*p != 0) {
size_t n;
@@ -2074,7 +2074,7 @@ static int bus_message_close_struct(sd_bus_message *m, struct bus_container *c,
if (!a)
return -ENOMEM;
- p = c->signature;
+ p = strempty(c->signature);
for (i = 0, j = 0; i < c->n_offsets; i++) {
unsigned k;
size_t n;
@@ -3554,12 +3554,20 @@ static int build_struct_offsets(
int r;
assert(m);
- assert(signature);
assert(item_size);
assert(offsets);
assert(n_offsets);
+ if (isempty(signature)) {
+ *item_size = 0;
+ *offsets = NULL;
+ *n_offsets = 0;
+ return 0;
+ }
+
sz = determine_word_size(size, 0);
+ if (sz <= 0)
+ return -EBADMSG;
/* First, loop over signature and count variable elements and
* elements in general. We use this to know how large the
@@ -5281,7 +5289,7 @@ _public_ const char* sd_bus_message_get_signature(sd_bus_message *m, int complet
assert_return(m, NULL);
c = complete ? &m->root_container : message_get_container(m);
- return c->signature ?: "";
+ return strempty(c->signature);
}
_public_ int sd_bus_message_copy(sd_bus_message *m, sd_bus_message *source, int all) {