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-rw-r--r--src/libsystemd-bus/bus-message.c56
1 files changed, 25 insertions, 31 deletions
diff --git a/src/libsystemd-bus/bus-message.c b/src/libsystemd-bus/bus-message.c
index a22962559d..ec98de3132 100644
--- a/src/libsystemd-bus/bus-message.c
+++ b/src/libsystemd-bus/bus-message.c
@@ -2121,24 +2121,44 @@ static int message_peek_fields(
return buffer_peek(m->fields, BUS_MESSAGE_FIELDS_SIZE(m), rindex, align, nbytes, ret);
}
+static int message_peek_field_uint32(
+ sd_bus_message *m,
+ size_t *ri,
+ uint32_t *ret) {
+
+ int r;
+ void *q;
+
+ assert(m);
+ assert(ri);
+
+ r = message_peek_fields(m, ri, 4, 4, &q);
+ if (r < 0)
+ return r;
+
+ if (ret)
+ *ret = BUS_MESSAGE_BSWAP32(m, *(uint32_t*) q);
+
+ return 0;
+}
+
static int message_peek_field_string(
sd_bus_message *m,
bool (*validate)(const char *p),
size_t *ri,
const char **ret) {
- size_t l;
+ uint32_t l;
int r;
void *q;
assert(m);
assert(ri);
- r = message_peek_fields(m, ri, 4, 4, &q);
+ r = message_peek_field_uint32(m, ri, &l);
if (r < 0)
return r;
- l = BUS_MESSAGE_BSWAP32(m, *(uint32_t*) q);
r = message_peek_fields(m, ri, 1, l+1, &q);
if (r < 0)
return r;
@@ -2190,27 +2210,6 @@ static int message_peek_field_signature(
return 0;
}
-static int message_peek_field_uint32(
- sd_bus_message *m,
- size_t *ri,
- uint32_t *ret) {
-
- int r;
- void *q;
-
- assert(m);
- assert(ri);
-
- r = message_peek_fields(m, ri, 4, 4, &q);
- if (r < 0)
- return r;
-
- if (ret)
- *ret = BUS_MESSAGE_BSWAP32(m, *(uint32_t*) q);
-
- return 0;
-}
-
static int message_skip_fields(
sd_bus_message *m,
size_t *ri,
@@ -2228,7 +2227,6 @@ static int message_skip_fields(
for (;;) {
char t;
- void *q;
size_t l;
if (array_size != (uint32_t) -1 &&
@@ -2284,7 +2282,7 @@ static int message_skip_fields(
assert(l >= 1);
{
char sig[l-1], *s;
- size_t nas;
+ uint32_t nas;
int alignment;
strncpy(sig, *signature + 1, l-1);
@@ -2294,11 +2292,9 @@ static int message_skip_fields(
if (alignment < 0)
return alignment;
- r = message_peek_fields(m, ri, 4, 4, &q);
+ r = message_peek_field_uint32(m, ri, &nas);
if (r < 0)
return r;
-
- nas = BUS_MESSAGE_BSWAP32(m, *(uint32_t*) q);
if (nas > BUS_ARRAY_MAX_SIZE)
return -EBADMSG;
@@ -2432,8 +2428,6 @@ static int message_parse_fields(sd_bus_message *m) {
free(m->root_container.signature);
m->root_container.signature = c;
-
- r = 0;
break;
}