diff options
Diffstat (limited to 'src/test/test-in-addr-util.c')
| -rw-r--r-- | src/test/test-in-addr-util.c | 419 |
1 files changed, 419 insertions, 0 deletions
diff --git a/src/test/test-in-addr-util.c b/src/test/test-in-addr-util.c new file mode 100644 index 0000000..31d767e --- /dev/null +++ b/src/test/test-in-addr-util.c @@ -0,0 +1,419 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include <fnmatch.h> +#include <netinet/in.h> + +#include "in-addr-util.h" +#include "strv.h" +#include "tests.h" + +static void test_in_addr_prefix_from_string_one( + const char *p, + int family, + int ret, + const union in_addr_union *u, + unsigned char prefixlen, + int ret_refuse, + unsigned char prefixlen_refuse, + int ret_legacy, + unsigned char prefixlen_legacy) { + + union in_addr_union q; + unsigned char l; + int f, r; + + r = in_addr_prefix_from_string(p, family, &q, &l); + assert_se(r == ret); + + if (r < 0) + return; + + assert_se(in_addr_equal(family, &q, u)); + assert_se(l == prefixlen); + + r = in_addr_prefix_from_string_auto(p, &f, &q, &l); + assert_se(r >= 0); + + assert_se(f == family); + assert_se(in_addr_equal(family, &q, u)); + assert_se(l == prefixlen); + + r = in_addr_prefix_from_string_auto_internal(p, PREFIXLEN_REFUSE, &f, &q, &l); + assert_se(r == ret_refuse); + + if (r >= 0) { + assert_se(f == family); + assert_se(in_addr_equal(family, &q, u)); + assert_se(l == prefixlen_refuse); + } + + r = in_addr_prefix_from_string_auto_internal(p, PREFIXLEN_LEGACY, &f, &q, &l); + assert_se(r == ret_legacy); + + if (r >= 0) { + assert_se(f == family); + assert_se(in_addr_equal(family, &q, u)); + assert_se(l == prefixlen_legacy); + } +} + +TEST(in_addr_prefix_from_string) { + test_in_addr_prefix_from_string_one("", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0); + test_in_addr_prefix_from_string_one("/", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0); + test_in_addr_prefix_from_string_one("/8", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0); + test_in_addr_prefix_from_string_one("1.2.3.4", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 32, -ENOANO, 0, 0, 8); + test_in_addr_prefix_from_string_one("1.2.3.4/0", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 0, 0, 0, 0, 0); + test_in_addr_prefix_from_string_one("1.2.3.4/1", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 1, 0, 1, 0, 1); + test_in_addr_prefix_from_string_one("1.2.3.4/2", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 2, 0, 2, 0, 2); + test_in_addr_prefix_from_string_one("1.2.3.4/32", AF_INET, 0, &(union in_addr_union) { .in = (struct in_addr) { .s_addr = htobe32(0x01020304) } }, 32, 0, 32, 0, 32); + test_in_addr_prefix_from_string_one("1.2.3.4/33", AF_INET, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0); + test_in_addr_prefix_from_string_one("1.2.3.4/-1", AF_INET, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0); + test_in_addr_prefix_from_string_one("::1", AF_INET, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0); + + test_in_addr_prefix_from_string_one("", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0); + test_in_addr_prefix_from_string_one("/", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0); + test_in_addr_prefix_from_string_one("/8", AF_INET6, -EINVAL, NULL, 0, -EINVAL, 0, -EINVAL, 0); + test_in_addr_prefix_from_string_one("::1", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 128, -ENOANO, 0, 0, 0); + test_in_addr_prefix_from_string_one("::1/0", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 0, 0, 0, 0, 0); + test_in_addr_prefix_from_string_one("::1/1", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 1, 0, 1, 0, 1); + test_in_addr_prefix_from_string_one("::1/2", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 2, 0, 2, 0, 2); + test_in_addr_prefix_from_string_one("::1/32", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 32, 0, 32, 0, 32); + test_in_addr_prefix_from_string_one("::1/33", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 33, 0, 33, 0, 33); + test_in_addr_prefix_from_string_one("::1/64", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 64, 0, 64, 0, 64); + test_in_addr_prefix_from_string_one("::1/128", AF_INET6, 0, &(union in_addr_union) { .in6 = IN6ADDR_LOOPBACK_INIT }, 128, 0, 128, 0, 128); + test_in_addr_prefix_from_string_one("::1/129", AF_INET6, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0); + test_in_addr_prefix_from_string_one("::1/-1", AF_INET6, -ERANGE, NULL, 0, -ERANGE, 0, -ERANGE, 0); +} + +static void test_in_addr_prefix_to_string_valid(int family, const char *p) { + union in_addr_union u; + unsigned char l; + + log_info("%s: %s", __func__, p); + + assert_se(in_addr_prefix_from_string(p, family, &u, &l) >= 0); + assert_se(streq(p, IN_ADDR_PREFIX_TO_STRING(family, &u, l))); +} + +static void test_in_addr_prefix_to_string_unoptimized(int family, const char *p) { + union in_addr_union u1, u2; + unsigned char len1, len2; + + log_info("%s: %s", __func__, p); + + assert_se(in_addr_prefix_from_string(p, family, &u1, &len1) >= 0); + const char *str1 = IN_ADDR_PREFIX_TO_STRING(family, &u1, len1); + assert_se(str1); + assert_se(in_addr_prefix_from_string(str1, family, &u2, &len2) >= 0); + const char *str2 = IN_ADDR_PREFIX_TO_STRING(family, &u2, len2); + assert_se(str2); + + assert_se(streq(str1, str2)); + assert_se(len1 == len2); + assert_se(in_addr_equal(family, &u1, &u2) > 0); +} + +TEST(in_addr_prefix_to_string) { + test_in_addr_prefix_to_string_valid(AF_INET, "0.0.0.0/32"); + test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/0"); + test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/24"); + test_in_addr_prefix_to_string_valid(AF_INET, "1.2.3.4/32"); + test_in_addr_prefix_to_string_valid(AF_INET, "255.255.255.255/32"); + + test_in_addr_prefix_to_string_valid(AF_INET6, "::1/128"); + test_in_addr_prefix_to_string_valid(AF_INET6, "fd00:abcd::1/64"); + test_in_addr_prefix_to_string_valid(AF_INET6, "fd00:abcd::1234:1/64"); + test_in_addr_prefix_to_string_valid(AF_INET6, "1111:2222:3333:4444:5555:6666:7777:8888/128"); + + test_in_addr_prefix_to_string_unoptimized(AF_INET, "0.0.0.0"); + test_in_addr_prefix_to_string_unoptimized(AF_INET, "192.168.0.1"); + + test_in_addr_prefix_to_string_unoptimized(AF_INET6, "fd00:0000:0000:0000:0000:0000:0000:0001/64"); + test_in_addr_prefix_to_string_unoptimized(AF_INET6, "fd00:1111::0000:2222:3333:4444:0001/64"); +} + +TEST(in_addr_random_prefix) { + _cleanup_free_ char *str = NULL; + union in_addr_union a; + + assert_se(in_addr_from_string(AF_INET, "192.168.10.1", &a) >= 0); + + assert_se(in_addr_random_prefix(AF_INET, &a, 31, 32) >= 0); + assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0); + assert_se(STR_IN_SET(str, "192.168.10.0", "192.168.10.1")); + str = mfree(str); + + assert_se(in_addr_random_prefix(AF_INET, &a, 24, 26) >= 0); + assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0); + assert_se(startswith(str, "192.168.10.")); + str = mfree(str); + + assert_se(in_addr_random_prefix(AF_INET, &a, 16, 24) >= 0); + assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0); + assert_se(fnmatch("192.168.[0-9]*.0", str, 0) == 0); + str = mfree(str); + + assert_se(in_addr_random_prefix(AF_INET, &a, 8, 24) >= 0); + assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0); + assert_se(fnmatch("192.[0-9]*.[0-9]*.0", str, 0) == 0); + str = mfree(str); + + assert_se(in_addr_random_prefix(AF_INET, &a, 8, 16) >= 0); + assert_se(in_addr_to_string(AF_INET, &a, &str) >= 0); + assert_se(fnmatch("192.[0-9]*.0.0", str, 0) == 0); + str = mfree(str); + + assert_se(in_addr_from_string(AF_INET6, "fd00::1", &a) >= 0); + + assert_se(in_addr_random_prefix(AF_INET6, &a, 16, 64) >= 0); + assert_se(in_addr_to_string(AF_INET6, &a, &str) >= 0); + assert_se(startswith(str, "fd00:")); + str = mfree(str); + + assert_se(in_addr_random_prefix(AF_INET6, &a, 8, 16) >= 0); + assert_se(in_addr_to_string(AF_INET6, &a, &str) >= 0); + assert_se(fnmatch("fd??::", str, 0) == 0); + str = mfree(str); +} + +TEST(in_addr_is_null) { + union in_addr_union i = {}; + + assert_se(in_addr_is_null(AF_INET, &i) == true); + assert_se(in_addr_is_null(AF_INET6, &i) == true); + + i.in.s_addr = 0x1000000; + assert_se(in_addr_is_null(AF_INET, &i) == false); + assert_se(in_addr_is_null(AF_INET6, &i) == false); + + assert_se(in_addr_is_null(-1, &i) == -EAFNOSUPPORT); +} + +static void test_in_addr_prefix_intersect_one(unsigned f, const char *a, unsigned apl, const char *b, unsigned bpl, int result) { + union in_addr_union ua, ub; + + assert_se(in_addr_from_string(f, a, &ua) >= 0); + assert_se(in_addr_from_string(f, b, &ub) >= 0); + + assert_se(in_addr_prefix_intersect(f, &ua, apl, &ub, bpl) == result); +} + +TEST(in_addr_prefix_intersect) { + test_in_addr_prefix_intersect_one(AF_INET, "255.255.255.255", 32, "255.255.255.254", 32, 0); + test_in_addr_prefix_intersect_one(AF_INET, "255.255.255.255", 0, "255.255.255.255", 32, 1); + test_in_addr_prefix_intersect_one(AF_INET, "0.0.0.0", 0, "47.11.8.15", 32, 1); + + test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.1", 24, 1); + test_in_addr_prefix_intersect_one(AF_INET, "2.2.2.2", 24, "1.1.1.1", 24, 0); + + test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.127", 25, 1); + test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 24, "1.1.1.127", 26, 1); + test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 25, "1.1.1.127", 25, 1); + test_in_addr_prefix_intersect_one(AF_INET, "1.1.1.1", 25, "1.1.1.255", 25, 0); + + test_in_addr_prefix_intersect_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe", 128, 0); + test_in_addr_prefix_intersect_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 0, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, 1); + test_in_addr_prefix_intersect_one(AF_INET6, "::", 0, "beef:beef:beef:beef:beef:beef:beef:beef", 128, 1); + + test_in_addr_prefix_intersect_one(AF_INET6, "1::2", 64, "1::2", 64, 1); + test_in_addr_prefix_intersect_one(AF_INET6, "2::2", 64, "1::2", 64, 0); + + test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 120, "1::007f", 121, 1); + test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 120, "1::007f", 122, 1); + test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 121, "1::007f", 121, 1); + test_in_addr_prefix_intersect_one(AF_INET6, "1::1", 121, "1::00ff", 121, 0); +} + +static void test_in_addr_prefix_next_one(unsigned f, const char *before, unsigned pl, const char *after) { + union in_addr_union ubefore, uafter, t; + + log_debug("/* %s(%s, prefixlen=%u) */", __func__, before, pl); + + assert_se(in_addr_from_string(f, before, &ubefore) >= 0); + + t = ubefore; + assert_se((in_addr_prefix_next(f, &t, pl) >= 0) == !!after); + + if (after) { + assert_se(in_addr_from_string(f, after, &uafter) >= 0); + assert_se(in_addr_equal(f, &t, &uafter) > 0); + } +} + +TEST(in_addr_prefix_next) { + test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 24, "192.168.1.0"); + test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 16, "192.169.0.0"); + test_in_addr_prefix_next_one(AF_INET, "192.168.0.0", 20, "192.168.16.0"); + + test_in_addr_prefix_next_one(AF_INET, "0.0.0.0", 32, "0.0.0.1"); + test_in_addr_prefix_next_one(AF_INET, "255.255.255.254", 32, "255.255.255.255"); + test_in_addr_prefix_next_one(AF_INET, "255.255.255.255", 32, NULL); + test_in_addr_prefix_next_one(AF_INET, "255.255.255.0", 24, NULL); + + test_in_addr_prefix_next_one(AF_INET6, "4400::", 128, "4400::0001"); + test_in_addr_prefix_next_one(AF_INET6, "4400::", 120, "4400::0100"); + test_in_addr_prefix_next_one(AF_INET6, "4400::", 127, "4400::0002"); + test_in_addr_prefix_next_one(AF_INET6, "4400::", 8, "4500::"); + test_in_addr_prefix_next_one(AF_INET6, "4400::", 7, "4600::"); + + test_in_addr_prefix_next_one(AF_INET6, "::", 128, "::1"); + + test_in_addr_prefix_next_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, NULL); + test_in_addr_prefix_next_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ff00", 120, NULL); +} + +static void test_in_addr_prefix_nth_one(unsigned f, const char *before, unsigned pl, uint64_t nth, const char *after) { + union in_addr_union ubefore, uafter, t; + + log_debug("/* %s(%s, prefixlen=%u, nth=%"PRIu64") */", __func__, before, pl, nth); + + assert_se(in_addr_from_string(f, before, &ubefore) >= 0); + + t = ubefore; + assert_se((in_addr_prefix_nth(f, &t, pl, nth) >= 0) == !!after); + + if (after) { + assert_se(in_addr_from_string(f, after, &uafter) >= 0); + assert_se(in_addr_equal(f, &t, &uafter) > 0); + } +} + +TEST(in_addr_prefix_nth) { + test_in_addr_prefix_nth_one(AF_INET, "192.168.0.0", 24, 0, "192.168.0.0"); + test_in_addr_prefix_nth_one(AF_INET, "192.168.0.123", 24, 0, "192.168.0.0"); + test_in_addr_prefix_nth_one(AF_INET, "192.168.0.123", 24, 1, "192.168.1.0"); + test_in_addr_prefix_nth_one(AF_INET, "192.168.0.0", 24, 4, "192.168.4.0"); + test_in_addr_prefix_nth_one(AF_INET, "192.168.0.0", 25, 1, "192.168.0.128"); + test_in_addr_prefix_nth_one(AF_INET, "192.168.255.0", 25, 1, "192.168.255.128"); + test_in_addr_prefix_nth_one(AF_INET, "192.168.255.0", 24, 0, "192.168.255.0"); + test_in_addr_prefix_nth_one(AF_INET, "255.255.255.255", 32, 1, NULL); + test_in_addr_prefix_nth_one(AF_INET, "255.255.255.255", 0, 1, NULL); + + test_in_addr_prefix_nth_one(AF_INET6, "4400::", 8, 1, "4500::"); + test_in_addr_prefix_nth_one(AF_INET6, "4400::", 7, 1, "4600::"); + test_in_addr_prefix_nth_one(AF_INET6, "4400::", 64, 1, "4400:0:0:1::"); + test_in_addr_prefix_nth_one(AF_INET6, "4400::", 64, 2, "4400:0:0:2::"); + test_in_addr_prefix_nth_one(AF_INET6, "4400::", 64, 0xbad, "4400:0:0:0bad::"); + test_in_addr_prefix_nth_one(AF_INET6, "4400:0:0:ffff::", 64, 1, "4400:0:1::"); + test_in_addr_prefix_nth_one(AF_INET6, "4400::", 56, ((uint64_t)1<<48) -1, "44ff:ffff:ffff:ff00::"); + test_in_addr_prefix_nth_one(AF_INET6, "0000::", 8, 255, "ff00::"); + test_in_addr_prefix_nth_one(AF_INET6, "0000::", 8, 256, NULL); + test_in_addr_prefix_nth_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 128, 1, NULL); + test_in_addr_prefix_nth_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff", 0, 1, NULL); + test_in_addr_prefix_nth_one(AF_INET6, "1234:5678:90ab:cdef:1234:5678:90ab:cdef", 12, 1, "1240::"); +} + +static void test_in_addr_prefix_range_one( + int family, + const char *in, + unsigned prefixlen, + const char *expected_start, + const char *expected_end) { + + union in_addr_union a, s, e; + + log_debug("/* %s(%s, prefixlen=%u) */", __func__, in, prefixlen); + + assert_se(in_addr_from_string(family, in, &a) >= 0); + assert_se((in_addr_prefix_range(family, &a, prefixlen, &s, &e) >= 0) == !!expected_start); + + if (expected_start) { + union in_addr_union es; + + assert_se(in_addr_from_string(family, expected_start, &es) >= 0); + assert_se(in_addr_equal(family, &s, &es) > 0); + } + if (expected_end) { + union in_addr_union ee; + + assert_se(in_addr_from_string(family, expected_end, &ee) >= 0); + assert_se(in_addr_equal(family, &e, &ee) > 0); + } +} + +TEST(in_addr_prefix_range) { + test_in_addr_prefix_range_one(AF_INET, "192.168.123.123", 24, "192.168.123.0", "192.168.124.0"); + test_in_addr_prefix_range_one(AF_INET, "192.168.123.123", 16, "192.168.0.0", "192.169.0.0"); + + test_in_addr_prefix_range_one(AF_INET6, "dead:beef::", 64, "dead:beef::", "dead:beef:0:1::"); + test_in_addr_prefix_range_one(AF_INET6, "dead:0:0:beef::", 64, "dead:0:0:beef::", "dead:0:0:bef0::"); + test_in_addr_prefix_range_one(AF_INET6, "2001::", 48, "2001::", "2001:0:1::"); + test_in_addr_prefix_range_one(AF_INET6, "2001::", 56, "2001::", "2001:0:0:0100::"); + test_in_addr_prefix_range_one(AF_INET6, "2001::", 65, "2001::", "2001::8000:0:0:0"); + test_in_addr_prefix_range_one(AF_INET6, "2001::", 66, "2001::", "2001::4000:0:0:0"); + test_in_addr_prefix_range_one(AF_INET6, "2001::", 127, "2001::", "2001::2"); +} + +static void test_in_addr_to_string_one(int f, const char *addr) { + union in_addr_union ua; + _cleanup_free_ char *r; + + assert_se(in_addr_from_string(f, addr, &ua) >= 0); + assert_se(in_addr_to_string(f, &ua, &r) >= 0); + printf("%s: %s == %s\n", __func__, addr, r); + assert_se(streq(addr, r)); + + assert_se(streq(r, IN_ADDR_TO_STRING(f, &ua))); +} + +TEST(in_addr_to_string) { + test_in_addr_to_string_one(AF_INET, "192.168.0.1"); + test_in_addr_to_string_one(AF_INET, "10.11.12.13"); + test_in_addr_to_string_one(AF_INET6, "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff"); + test_in_addr_to_string_one(AF_INET6, "::1"); + test_in_addr_to_string_one(AF_INET6, "fe80::"); +} + +TEST(in_addr_prefixlen_to_netmask) { + union in_addr_union addr; + static const char *const ipv4_netmasks[] = { + "0.0.0.0", "128.0.0.0", "192.0.0.0", "224.0.0.0", "240.0.0.0", + "248.0.0.0", "252.0.0.0", "254.0.0.0", "255.0.0.0", + "255.128.0.0", "255.192.0.0", "255.224.0.0", "255.240.0.0", + "255.248.0.0", "255.252.0.0", "255.254.0.0", "255.255.0.0", + "255.255.128.0", "255.255.192.0", "255.255.224.0", "255.255.240.0", + "255.255.248.0", "255.255.252.0", "255.255.254.0", "255.255.255.0", + "255.255.255.128", "255.255.255.192", "255.255.255.224", "255.255.255.240", + "255.255.255.248", "255.255.255.252", "255.255.255.254", "255.255.255.255", + }; + + static const char *const ipv6_netmasks[] = { + [0] = "::", + [1] = "8000::", + [2] = "c000::", + [7] = "fe00::", + [8] = "ff00::", + [9] = "ff80::", + [16] = "ffff::", + [17] = "ffff:8000::", + [32] = "ffff:ffff::", + [33] = "ffff:ffff:8000::", + [64] = "ffff:ffff:ffff:ffff::", + [65] = "ffff:ffff:ffff:ffff:8000::", + [96] = "ffff:ffff:ffff:ffff:ffff:ffff::", + [97] = "ffff:ffff:ffff:ffff:ffff:ffff:8000:0", + [127] = "ffff:ffff:ffff:ffff:ffff:ffff:ffff:fffe", + [128] = "ffff:ffff:ffff:ffff:ffff:ffff:ffff:ffff" + }; + + for (unsigned char prefixlen = 0; prefixlen <= 32; prefixlen++) { + _cleanup_free_ char *result = NULL; + + assert_se(in_addr_prefixlen_to_netmask(AF_INET, &addr, prefixlen) >= 0); + assert_se(in_addr_to_string(AF_INET, &addr, &result) >= 0); + printf("test_in_addr_prefixlen_to_netmask: %s == %s\n", ipv4_netmasks[prefixlen], result); + assert_se(streq(ipv4_netmasks[prefixlen], result)); + } + + for (unsigned char prefixlen = 0; prefixlen <= 128; prefixlen++) { + _cleanup_free_ char *result = NULL; + + assert_se(in_addr_prefixlen_to_netmask(AF_INET6, &addr, prefixlen) >= 0); + assert_se(in_addr_to_string(AF_INET6, &addr, &result) >= 0); + printf("test_in_addr_prefixlen_to_netmask: %s\n", result); + if (ipv6_netmasks[prefixlen]) + assert_se(streq(ipv6_netmasks[prefixlen], result)); + } +} + +DEFINE_TEST_MAIN(LOG_DEBUG); |