From 415b3f0bb298e9903125f505a9063057471fa574 Mon Sep 17 00:00:00 2001
From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Mon, 11 Mar 2019 19:56:34 +0100
Subject: [PATCH 1/2] fuzz: add a fuzzer for calendarspec

---
 src/fuzz/fuzz-calendarspec.c | 24 ++++++++++++++++++++++++
 src/fuzz/meson.build         |  4 ++++
 2 files changed, 28 insertions(+)
 create mode 100644 src/fuzz/fuzz-calendarspec.c

diff --git a/src/fuzz/fuzz-calendarspec.c b/src/fuzz/fuzz-calendarspec.c
new file mode 100644
index 0000000000..55d8613494
--- /dev/null
+++ b/src/fuzz/fuzz-calendarspec.c
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include "alloc-util.h"
+#include "calendarspec.h"
+#include "fd-util.h"
+#include "fuzz.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+        _cleanup_(calendar_spec_freep) CalendarSpec *cspec = NULL;
+        _cleanup_free_ char *str = NULL, *p = NULL;
+
+        if (!getenv("SYSTEMD_LOG_LEVEL"))
+                log_set_max_level(LOG_CRIT);
+
+        str = memdup_suffix0(data, size);
+
+        if (calendar_spec_from_string(str, &cspec) > 0) {
+                (void) calendar_spec_valid(cspec);
+                (void) calendar_spec_normalize(cspec);
+                (void) calendar_spec_to_string(cspec, &p);
+        }
+
+        return 0;
+}
diff --git a/src/fuzz/meson.build b/src/fuzz/meson.build
index 4a242f8a6c..99d7e06deb 100644
--- a/src/fuzz/meson.build
+++ b/src/fuzz/meson.build
@@ -129,4 +129,8 @@ fuzzers += [
          [libshared,
           libnspawn_core],
          []],
+
+        [['src/fuzz/fuzz-calendarspec.c'],
+         [libshared],
+         []],
 ]

From 55a365cb7457835b99fc68a8b495776f5e5c0c0f Mon Sep 17 00:00:00 2001
From: Frantisek Sumsal <frantisek@sumsal.cz>
Date: Mon, 11 Mar 2019 19:57:09 +0100
Subject: [PATCH 2/2] fuzz: add a fuzzer for time utils

---
 src/fuzz/fuzz-time-util.c | 28 ++++++++++++++++++++++++++++
 src/fuzz/meson.build      |  4 ++++
 2 files changed, 32 insertions(+)
 create mode 100644 src/fuzz/fuzz-time-util.c

diff --git a/src/fuzz/fuzz-time-util.c b/src/fuzz/fuzz-time-util.c
new file mode 100644
index 0000000000..22b2496fcb
--- /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 99d7e06deb..241fe02edb 100644
--- 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],
+         []],
 ]