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-rw-r--r--src/udev/net/fuzz-link-parser.c28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/udev/net/fuzz-link-parser.c b/src/udev/net/fuzz-link-parser.c
new file mode 100644
index 0000000..6f3469c
--- /dev/null
+++ b/src/udev/net/fuzz-link-parser.c
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include "fd-util.h"
+#include "fs-util.h"
+#include "fuzz.h"
+#include "link-config.h"
+#include "tmpfile-util.h"
+
+int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size) {
+ _cleanup_(link_config_ctx_freep) link_config_ctx *ctx = NULL;
+ _cleanup_(unlink_tempfilep) char filename[] = "/tmp/fuzz-link-config.XXXXXX";
+ _cleanup_fclose_ FILE *f = NULL;
+
+ if (size > 65535)
+ return 0;
+
+ if (!getenv("SYSTEMD_LOG_LEVEL"))
+ log_set_max_level(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(link_config_ctx_new(&ctx) >= 0);
+ (void) link_load_one(ctx, filename);
+ return 0;
+}