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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
commit2cb7e0aaedad73b076ea18c6900b0e86c5760d79 (patch)
treeda68ca54bb79f4080079bf0828acda937593a4e1 /src/fuzz/fuzz-bus-message.c
parentInitial commit. (diff)
downloadsystemd-2cb7e0aaedad73b076ea18c6900b0e86c5760d79.tar.xz
systemd-2cb7e0aaedad73b076ea18c6900b0e86c5760d79.zip
Adding upstream version 247.3.upstream/247.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/fuzz/fuzz-bus-message.c')
-rw-r--r--src/fuzz/fuzz-bus-message.c45
1 files changed, 45 insertions, 0 deletions
diff --git a/src/fuzz/fuzz-bus-message.c b/src/fuzz/fuzz-bus-message.c
new file mode 100644
index 0000000..af3dbf4
--- /dev/null
+++ b/src/fuzz/fuzz-bus-message.c
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "bus-dump.h"
+#include "bus-message.h"
+#include "env-util.h"
+#include "fd-util.h"
+#include "fileio.h"
+#include "fuzz.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+ _cleanup_free_ char *out = NULL; /* out should be freed after g */
+ size_t out_size;
+ _cleanup_fclose_ FILE *g = NULL;
+ _cleanup_(sd_bus_unrefp) sd_bus *bus = NULL;
+ _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL;
+ _cleanup_free_ void *buffer = NULL;
+ int r;
+
+ /* We don't want to fill the logs with messages about parse errors.
+ * Disable most logging if not running standalone */
+ if (!getenv("SYSTEMD_LOG_LEVEL"))
+ log_set_max_level(LOG_CRIT);
+
+ r = sd_bus_new(&bus);
+ assert_se(r >= 0);
+
+ assert_se(buffer = memdup(data, size));
+
+ r = bus_message_from_malloc(bus, buffer, size, NULL, 0, NULL, &m);
+ if (r == -EBADMSG)
+ return 0;
+ assert_se(r >= 0);
+ TAKE_PTR(buffer);
+
+ if (getenv_bool("SYSTEMD_FUZZ_OUTPUT") <= 0)
+ assert_se(g = open_memstream_unlocked(&out, &out_size));
+
+ sd_bus_message_dump(m, g ?: stdout, SD_BUS_MESSAGE_DUMP_WITH_HEADER);
+
+ r = sd_bus_message_rewind(m, true);
+ assert_se(r >= 0);
+
+ return 0;
+}