fuzz: add a fuzzer for time utils

diff --git a/src/fuzz/fuzz-time-util.c b/src/fuzz/fuzz-time-util.c
new file mode 100644 (file)
index 0000000..22b2496
--- /dev/null
+++ b/src/fuzz/fuzz-time-util.c
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "alloc-util.h"
+#include "fd-util.h"
+#include "fuzz.h"
+#include "time-util.h"
+#include "util.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+        _cleanup_free_ char *str = NULL;
+        usec_t usec;
+
+        if (!getenv("SYSTEMD_LOG_LEVEL"))
+                log_set_max_level(LOG_CRIT);
+
+        str = memdup_suffix0(data, size);
+
+        (void) parse_timestamp(str, &usec);
+        (void) parse_sec(str, &usec);
+        (void) parse_sec_fix_0(str, &usec);
+        (void) parse_sec_def_infinity(str, &usec);
+        (void) parse_time(str, &usec, USEC_PER_SEC);
+        (void) parse_nsec(str, &usec);
+
+        (void) timezone_is_valid(str, LOG_DEBUG);
+
+        return 0;
+}

diff --git a/src/fuzz/meson.build b/src/fuzz/meson.build
index 99d7e06debca9aa67f1078fcd253fa5f504bbe3f..241fe02edbb0d0729827fda62a85d61a9e71a3c1 100644 (file)
--- a/src/fuzz/meson.build
+++ b/src/fuzz/meson.build
@@ -133,4 +133,8 @@ fuzzers += [
         [['src/fuzz/fuzz-calendarspec.c'],
          [libshared],
          []],
+
+        [['src/fuzz/fuzz-time-util.c'],
+         [libshared],
+         []],
 ]