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test: add basic tests for in_addr_prefix_covers_full()

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This commit is contained in:
Yu Watanabe 2024-05-10 12:17:10 +09:00
parent 41a94ae670
commit 4591efffc0
1 changed files with 51 additions and 0 deletions
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51
src/test/test-in-addr-util.c
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@ -405,4 +405,55 @@ TEST(in_addr_prefixlen_to_netmask) {
}
}
static void in_addr_prefix_covers_full_one(const char *prefix, const char *address, int expected) {
union in_addr_union p, a;
unsigned char plen, alen;
int family, r;
assert_se(in_addr_prefix_from_string_auto(prefix, &family, &p, &plen) >= 0);
assert_se(in_addr_prefix_from_string(address, family, &a, &alen) >= 0);
r = in_addr_prefix_covers_full(family, &p, plen, &a, alen);
if (r != expected)
log_error("in_addr_prefix_covers_full(%s, %s)=%i (expected=%i)", prefix, address, r, expected);
assert_se(r == expected);
}
TEST(in_addr_prefix_covers_full) {
/* From issue #32715. */
in_addr_prefix_covers_full_one("192.168.235.129/32", "192.168.0.128/32", 0);
in_addr_prefix_covers_full_one("192.168.235.130/32", "192.168.0.128/32", 0);
in_addr_prefix_covers_full_one("169.254.0.0/17", "192.168.0.128/32", 0);
in_addr_prefix_covers_full_one("169.254.128.0/17", "192.168.0.128/32", 0);
in_addr_prefix_covers_full_one("0.0.0.0/1", "192.168.0.128/32", 0);
in_addr_prefix_covers_full_one("128.0.0.0/1", "192.168.0.128/32", 1);
in_addr_prefix_covers_full_one("0.0.0.0/0", "192.168.0.128/32", 1);
for (unsigned i = 0; i <= 32; i++) {
_cleanup_free_ char *prefix = NULL;
assert_se(asprintf(&prefix, "192.168.0.128/%u", i) >= 0);
for (unsigned j = 0; j <= 32; j++) {
_cleanup_free_ char *address = NULL;
assert_se(asprintf(&address, "192.168.0.128/%u", j) >= 0);
in_addr_prefix_covers_full_one(prefix, address, i <= j);
}
}
for (unsigned i = 0; i <= 32; i++) {
_cleanup_free_ char *prefix = NULL;
assert_se(asprintf(&prefix, "192.168.235.129/%u", i) >= 0);
in_addr_prefix_covers_full_one(prefix, "192.168.0.128/32", i <= 16);
}
for (unsigned i = 0; i <= 128; i++) {
_cleanup_free_ char *prefix = NULL;
assert_se(asprintf(&prefix, "dead:beef::/%u", i) >= 0);
in_addr_prefix_covers_full_one(prefix, "dead:0:beef::1/128", i <= 16);
}
}
DEFINE_TEST_MAIN(LOG_DEBUG);