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fuzz-tests: Add a wire test for wireaddr_internal #8324

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42 changes: 42 additions & 0 deletions tests/fuzz/fuzz-wire-wireaddr_internal.c
Original file line number Diff line number Diff line change
@@ -0,0 +1,42 @@
#include "config.h"
#include <assert.h>
#include <ccan/ccan/tal/str/str.h>
#include <common/utils.h>
#include <common/setup.h>
#include <common/wireaddr.h>
#include <bitcoin/chainparams.h>
#include <tests/fuzz/libfuzz.h>

#define DEFAULT_PORT 9735

void init(int *argc, char ***argv)
{
common_setup("fuzzer");
chainparams = chainparams_for_network("bitcoin");
}

void run(const uint8_t *data, size_t size)
{
char *addr = tal_arr(tmpctx, char, size + 1);
if (!addr)
return;
memcpy(addr, data, size);
addr[size] = '\0';

struct wireaddr_internal *wa = tal(tmpctx, struct wireaddr_internal);
const char *err;

err = parse_wireaddr_internal(tmpctx, addr, DEFAULT_PORT, NULL, wa);

if (!err) {
u8 *output_buffer = tal_arr(tmpctx, u8, 0);
towire_wireaddr_internal(&output_buffer, wa);
size_t len = tal_bytelen(output_buffer);

struct wireaddr_internal *decoded_wa = tal(tmpctx, struct wireaddr_internal);
assert(fromwire_wireaddr_internal((const u8 **) &output_buffer, &len, decoded_wa));
assert(wireaddr_internal_eq(wa, decoded_wa));
}

clean_tmpctx();
}