--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/fuzzer-pubkey.c	Sun Mar 04 15:07:09 2018 +0800
@@ -0,0 +1,44 @@
+#include "fuzz.h"
+#include "session.h"
+#include "fuzz-wrapfd.h"
+#include "debug.h"
+
+static void setup_fuzzer(void) {
+	fuzz_common_setup();
+}
+
+int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
+	static int once = 0;
+	if (!once) {
+		setup_fuzzer();
+		once = 1;
+	}
+
+	if (fuzz_set_input(Data, Size) == DROPBEAR_FAILURE) {
+		return 0;
+	}
+
+	m_malloc_set_epoch(1);
+
+	/* choose a keytype based on input */
+	uint8_t b = 0;
+	size_t i;
+	for (i = 0; i < Size; i++) {
+		b ^= Data[i];
+	}
+	const char* algoname = fuzz_signkey_names[b%DROPBEAR_SIGNKEY_NUM_NAMED];
+	const char* keyblob = "blob"; /* keep short */
+
+	if (setjmp(fuzz.jmp) == 0) {
+		fuzz_checkpubkey_line(fuzz.input, 5, "/home/me/authorized_keys", 
+			algoname, strlen(algoname),
+			(unsigned char*)keyblob, strlen(keyblob));
+		m_malloc_free_epoch(1, 0);
+	} else {
+		m_malloc_free_epoch(1, 1);
+		TRACE(("dropbear_exit longjmped"))
+		/* dropbear_exit jumped here */
+	}
+
+	return 0;
+}