summaryrefslogtreecommitdiffstats
path: root/src/fuzz/fuzz-calendarspec.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/fuzz/fuzz-calendarspec.c')
-rw-r--r--src/fuzz/fuzz-calendarspec.c57
1 files changed, 57 insertions, 0 deletions
diff --git a/src/fuzz/fuzz-calendarspec.c b/src/fuzz/fuzz-calendarspec.c
new file mode 100644
index 0000000..b31a3f2
--- /dev/null
+++ b/src/fuzz/fuzz-calendarspec.c
@@ -0,0 +1,57 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "alloc-util.h"
+#include "calendarspec.h"
+#include "fd-util.h"
+#include "fuzz.h"
+#include "string-util.h"
+#include "time-util.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+ _cleanup_(calendar_spec_freep) CalendarSpec *cspec = NULL;
+ _cleanup_free_ char *str = NULL;
+ int r;
+
+ fuzz_setup_logging();
+
+ assert_se(str = memdup_suffix0(data, size));
+
+ size_t l1 = strlen(str);
+ const char* usecs = l1 < size ? str + l1 + 1 : "";
+
+ r = calendar_spec_from_string(str, &cspec);
+ if (r < 0) {
+ log_debug_errno(r, "Failed to parse \"%s\": %m", str);
+ return 0;
+ }
+
+ _cleanup_free_ char *p = NULL;
+ assert_se(calendar_spec_valid(cspec));
+ assert_se(calendar_spec_to_string(cspec, &p) == 0);
+ assert(p);
+
+ log_debug("spec: %s → %s", str, p);
+
+ _cleanup_(calendar_spec_freep) CalendarSpec *cspec2 = NULL;
+ assert_se(calendar_spec_from_string(p, &cspec2) >= 0);
+ assert_se(calendar_spec_valid(cspec2));
+
+ usec_t usec = 0;
+ (void) parse_time(usecs, &usec, 1);
+
+ /* If timezone is set, calendar_spec_next_usec() would fork, bleh :(
+ * Let's not try that. */
+ cspec->timezone = mfree(cspec->timezone);
+
+ log_debug("00: %s", strna(FORMAT_TIMESTAMP(usec)));
+ for (unsigned i = 1; i <= 20; i++) {
+ r = calendar_spec_next_usec(cspec, usec, &usec);
+ if (r < 0) {
+ log_debug_errno(r, "%02u: %m", i);
+ break;
+ }
+ log_debug("%02u: %s", i, FORMAT_TIMESTAMP(usec));
+ }
+
+ return 0;
+}