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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/libsystemd/sd-bus/fuzz-bus-message.c | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/libsystemd/sd-bus/fuzz-bus-message.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/src/libsystemd/sd-bus/fuzz-bus-message.c b/src/libsystemd/sd-bus/fuzz-bus-message.c new file mode 100644 index 0000000..af3dbf4 --- /dev/null +++ b/src/libsystemd/sd-bus/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; +} |