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-rw-r--r--src/fuzz/fuzz-udev-rules.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/fuzz/fuzz-udev-rules.c b/src/fuzz/fuzz-udev-rules.c
new file mode 100644
index 0000000..e1140bc
--- /dev/null
+++ b/src/fuzz/fuzz-udev-rules.c
@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <stdio.h>
+
+#include "fd-util.h"
+#include "fs-util.h"
+#include "fuzz.h"
+#include "tests.h"
+#include "tmpfile-util.h"
+#include "udev-rules.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+ _cleanup_(udev_rules_freep) UdevRules *rules = NULL;
+ _cleanup_fclose_ FILE *f = NULL;
+ _cleanup_(unlink_tempfilep) char filename[] = "/tmp/fuzz-udev-rules.XXXXXX";
+ int r;
+
+ if (!getenv("SYSTEMD_LOG_LEVEL")) {
+ log_set_max_level_realm(LOG_REALM_UDEV, LOG_CRIT);
+ log_set_max_level_realm(LOG_REALM_SYSTEMD, LOG_CRIT);
+ }
+
+ assert_se(fmkostemp_safe(filename, "r+", &f) == 0);
+ if (size != 0)
+ assert_se(fwrite(data, size, 1, f) == 1);
+ fflush(f);
+
+ assert_se(rules = udev_rules_new(RESOLVE_NAME_EARLY));
+ r = udev_rules_parse_file(rules, filename);
+ log_info_errno(r, "Parsing %s: %m", filename);
+ assert_se(IN_SET(r,
+ 0, /* OK */
+ -ENOBUFS /* line length exceeded */));
+
+ return 0;
+}