Function main

common/test/run-onion-test-vector.c:133–217

}

int main(int argc, char *argv[])
{
	char *json;
	size_t i;
	jsmn_parser parser;
	jsmntok_t toks[5000];
	const jsmntok_t *t, *generate_tok;
	struct sphinx_path *sp;
	struct secret session_key;
	struct onionpacket *op;
	u8 *assoc_data, *expected, *actual;
	struct secret *unused_path_secrets;
	u8 *payloads[5];

	common_setup(argv[0]);

	if (argv[1])
		json = grab_file_str(tmpctx, argv[1]);
	else {
		char *dir = getenv("BOLTDIR");
		json = grab_file_str(tmpctx,
				     path_join(tmpctx,
					       dir ? dir : ".tmp.lightningrfc",
					       "bolt04/onion-test.json"));
		if (!json) {
			printf("test file not found, skipping\n");
			goto out;
		}
	}

	jsmn_init(&parser);
	if (jsmn_parse(&parser, json, strlen(json), toks, ARRAY_SIZE(toks)) < 0)
		abort();

	generate_tok = json_get_member(json, toks, "generate");
	json_to_secret(json, json_get_member(json, generate_tok, "session_key"), &session_key);
	assoc_data = json_tok_bin_from_hex(tmpctx, json, json_get_member(json, generate_tok, "associated_data"));
	sp = sphinx_path_new_with_key(tmpctx, assoc_data, tal_bytelen(assoc_data),
				      &session_key);
	json_for_each_arr(i, t, json_get_member(json, generate_tok, "hops")) {
		struct pubkey k;
		const u8 *cursor;
		size_t max, len;

		json_to_pubkey(json, json_get_member(json, t, "pubkey"), &k);
		payloads[i] = json_tok_bin_from_hex(NULL, json, json_get_member(json, t, "payload"));
		/* First byte(s) are length: check and remove them for our API. */
		cursor = payloads[i];
		max = tal_bytelen(payloads[i]);
		len = fromwire_bigsize(&cursor, &max);
		assert(len == max);
		sphinx_add_hop(sp, &k, take(tal_dup_arr(NULL, u8, cursor, max, 0)));
	}
	assert(i == ARRAY_SIZE(payloads));

	op = create_onionpacket(tmpctx, sp, ROUTING_INFO_SIZE, &unused_path_secrets);

	expected = json_tok_bin_from_hex(tmpctx, json, json_get_member(json, toks, "onion"));