cln/tests/fuzz/fuzz-wireaddr.c
Rusty Russell 3d9bdab1e7 common: correctly refuse to accept wireaddr with port == 0.
BOLT 7 says this, but we don't do it.  (Actually, it only says that for certain types,
but I've fixed that in https://github.com/lightning/bolts/pull/1331).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2026-04-30 12:17:43 +09:30

42 lines
1,005 B
C

#include "config.h"
#include <assert.h>
#include <bitcoin/chainparams.h>
#include <ccan/ccan/tal/str/str.h>
#include <common/setup.h>
#include <common/utils.h>
#include <common/wireaddr.h>
#include <tests/fuzz/libfuzz.h>
#define DEFAULT_PORT 9735
void init(int *argc, char ***argv)
{
/* Don't call this if we're in unit-test mode, as libfuzz.c does it */
if (!tmpctx)
common_setup("fuzzer");
chainparams = chainparams_for_network("bitcoin");
}
void run(const uint8_t *data, size_t size)
{
char *addr = to_string(tmpctx, data, size);
struct wireaddr wa, decoded_wa;
const char *err;
err = parse_wireaddr(tmpctx, addr, DEFAULT_PORT, NULL, &wa);
if (!err) {
assert(fmt_wireaddr(tmpctx, &wa));
u8 *output_buffer = tal_arr(tmpctx, u8, 0);
towire_wireaddr(&output_buffer, &wa);
size_t len = tal_bytelen(output_buffer);
assert(fromwire_wireaddr((const u8 **)&output_buffer, &len,
&decoded_wa) == FROMWIREADDR_OK);
assert(wireaddr_eq(&wa, &decoded_wa));
}
clean_tmpctx();
}