/*	$NetBSD: decodenetnum.c,v 1.3 2022/10/09 21:41:04 christos Exp $	*/

#include "config.h"
#include "ntp_stdlib.h"
#include "sockaddrtest.h"

#include "unity.h"

void setUp(void);
extern void test_IPv4AddressOnly(void);
extern void test_IPv4AddressWithPort(void);
extern void test_IPv6AddressOnly(void);
extern void test_IPv6AddressWithPort(void);
extern void test_IPv6AddressWithScope(void);
extern void test_IPv6AddressWithPortAndScope(void);
extern void test_IllegalAddress(void);
extern void test_IllegalCharInPort(void);
extern void test_NameBufOverflow(void);

/*
 * NOTE: The IPv6 specific tests are reduced to stubs when IPv6 is
 * disabled.
 *
 * ISC_PLATFORM_HAVEIPV6 checks if system has IPV6 capabilies. WANTIPV6
 * ISC_PLATFORM_WANTIPV6 can be changed with build --disable-ipv6.
 *
 * If we want IPv6 but don't have it, the tests should fail, I think.
 */
void
setUp(void)
{
	init_lib();
}


void
test_IPv4AddressOnly(void)
{
	const char *str = "192.0.2.1";
	sockaddr_u actual;

	sockaddr_u expected;
	memset(&expected, 0, sizeof(expected));
	expected.sa4.sin_family = AF_INET;
	expected.sa4.sin_addr.s_addr = inet_addr("192.0.2.1");
	SET_PORT(&expected, NTP_PORT);

	TEST_ASSERT_TRUE(decodenetnum(str, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));
}

void
test_IPv4AddressWithPort(void)
{
	const char *str = "192.0.2.2:2000";
	sockaddr_u actual;

	sockaddr_u expected;
	memset(&expected, 0, sizeof(expected));
	expected.sa4.sin_family = AF_INET;
	expected.sa4.sin_addr.s_addr = inet_addr("192.0.2.2");
	SET_PORT(&expected, 2000);

	TEST_ASSERT_TRUE(decodenetnum(str, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));
}


void
test_IPv6AddressOnly(void)
{
#if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6)

	const struct in6_addr address = {
		0x20, 0x01, 0x0d, 0xb8,
		0x85, 0xa3, 0x08, 0xd3,
		0x13, 0x19, 0x8a, 0x2e,
		0x03, 0x70, 0x73, 0x34
	};

	const char *str1 = "2001:0db8:85a3:08d3:1319:8a2e:0370:7334";
	const char *str2 = "[2001:0db8:85a3:08d3:1319:8a2e:0370:7334]";
	sockaddr_u actual;

	sockaddr_u expected;
	memset(&expected, 0, sizeof(expected));
	expected.sa6.sin6_family = AF_INET6;
	expected.sa6.sin6_addr = address;
	SET_PORT(&expected, NTP_PORT);

	TEST_ASSERT_TRUE(decodenetnum(str1, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));

	TEST_ASSERT_TRUE(decodenetnum(str2, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));

#else

	TEST_IGNORE_MESSAGE("IPV6 disabled in build");

#endif
}


void
test_IPv6AddressWithPort(void)
{
#if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6)

	const struct in6_addr address = {
		0x20, 0x01, 0x0d, 0xb8,
		0x85, 0xa3, 0x08, 0xd3,
		0x13, 0x19, 0x8a, 0x2e,
		0x03, 0x70, 0x73, 0x34
	};

	const char *str = "[2001:0db8:85a3:08d3:1319:8a2e:0370:7334]:3000";
	sockaddr_u actual;

	sockaddr_u expected;
	memset(&expected, 0, sizeof(expected));
	expected.sa6.sin6_family = AF_INET6;
	expected.sa6.sin6_addr = address;
	SET_PORT(&expected, 3000);

	TEST_ASSERT_TRUE(decodenetnum(str, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));

#else

	TEST_IGNORE_MESSAGE("IPV6 disabled in build");

#endif
}

void test_IPv6AddressWithScope(void)
{
#if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6)

	const struct in6_addr address = {
		0x20, 0x01, 0x0d, 0xb8,
		0x85, 0xa3, 0x08, 0xd3,
		0x13, 0x19, 0x8a, 0x2e,
		0x03, 0x70, 0x73, 0x34
	};

	const char *str1 = "2001:0db8:85a3:08d3:1319:8a2e:0370:7334%42";
	const char *str2 = "[2001:0db8:85a3:08d3:1319:8a2e:0370:7334%42]";
	sockaddr_u actual;

	sockaddr_u expected;
	memset(&expected, 0, sizeof(expected));
	expected.sa6.sin6_family = AF_INET6;
	expected.sa6.sin6_addr = address;
	expected.sa6.sin6_scope_id = 42;
	SET_PORT(&expected, NTP_PORT);

	TEST_ASSERT_TRUE(decodenetnum(str1, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));

	TEST_ASSERT_TRUE(decodenetnum(str2, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));

#else

	TEST_IGNORE_MESSAGE("IPV6 disabled in build");

#endif
}

void test_IPv6AddressWithPortAndScope(void)
{
#if defined(ISC_PLATFORM_HAVEIPV6) && defined(WANT_IPV6)

	const struct in6_addr address = {
		0x20, 0x01, 0x0d, 0xb8,
		0x85, 0xa3, 0x08, 0xd3,
		0x13, 0x19, 0x8a, 0x2e,
		0x03, 0x70, 0x73, 0x34
	};

	const char *str = "[2001:0db8:85a3:08d3:1319:8a2e:0370:7334%42]:3000";
	sockaddr_u actual;

	sockaddr_u expected;
	memset(&expected, 0, sizeof(expected));
	expected.sa6.sin6_family = AF_INET6;
	expected.sa6.sin6_addr = address;
	expected.sa6.sin6_scope_id = 42;
	SET_PORT(&expected, 3000);

	TEST_ASSERT_TRUE(decodenetnum(str, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));

#else

	TEST_IGNORE_MESSAGE("IPV6 disabled in build");

#endif
}

void
test_IllegalAddress(void)
{
	const char *str = "192.0.2.270:2000";
	sockaddr_u actual;

	TEST_ASSERT_FALSE(decodenetnum(str, &actual));
}


void
test_IllegalCharInPort(void)
{
	/* An illegal port does not make the decodenetnum fail, but instead
	 * makes it use the standard port.
	 */
	const char *str = "192.0.2.1:a700";
	sockaddr_u actual;

	sockaddr_u expected;
	memset(&expected, 0, sizeof(expected));
	expected.sa4.sin_family = AF_INET;
	expected.sa4.sin_addr.s_addr = inet_addr("192.0.2.1");
	SET_PORT(&expected, NTP_PORT);

	TEST_ASSERT_TRUE(decodenetnum(str, &actual));
	TEST_ASSERT_TRUE(IsEqual(expected, actual));
}

void
test_NameBufOverflow(void)
{
	const char *str =
	    "loremipsumloremipsumloremipsumloremipsumloremipsum"
	    "loremipsumloremipsumloremipsumloremipsum";

	sockaddr_u actual;
	TEST_ASSERT_FALSE(decodenetnum(str, &actual));
}