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dns-domain: add call for concatenating two domain names

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This is specifically useful for appending the mDNS ".local" suffix to a
single-label hostname in the most correct way. (used in later commit)
This commit is contained in:
Lennart Poettering
2015-08-21 12:41:07 +02:00
parent 46a5e0e742
commit 9ca45586e6
3 changed files with 69 additions and 16 deletions
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src/test/test-dns-domain.c
+35
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@@ -251,6 +251,39 @@ static void test_dns_name_reverse(void) {
test_dns_name_reverse_one("::1", "1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.ip6.arpa");
}
static void test_dns_name_concat_one(const char *a, const char *b, int r, const char *result) {
_cleanup_free_ char *p = NULL;
assert_se(dns_name_concat(a, b, &p) == r);
assert_se(streq_ptr(p, result));
}
static void test_dns_name_concat(void) {
test_dns_name_concat_one("foo", "bar", 0, "foo.bar");
test_dns_name_concat_one("foo.foo", "bar.bar", 0, "foo.foo.bar.bar");
test_dns_name_concat_one("foo", NULL, 0, "foo");
test_dns_name_concat_one("foo.", "bar.", 0, "foo.bar");
}
static void test_dns_name_is_valid_one(const char *s, int ret) {
assert_se(dns_name_is_valid(s) == ret);
}
static void test_dns_name_is_valid(void) {
test_dns_name_is_valid_one("foo", 1);
test_dns_name_is_valid_one("foo.", 1);
test_dns_name_is_valid_one("Foo", 1);
test_dns_name_is_valid_one("foo.bar", 1);
test_dns_name_is_valid_one("foo.bar.baz", 1);
test_dns_name_is_valid_one("", 1);
test_dns_name_is_valid_one("foo..bar", 0);
test_dns_name_is_valid_one(".foo.bar", 0);
test_dns_name_is_valid_one("foo.bar.", 1);
test_dns_name_is_valid_one("\\zbar", 0);
test_dns_name_is_valid_one("ä", 1);
test_dns_name_is_valid_one("\n", 0);
}
int main(int argc, char *argv[]) {
test_dns_label_unescape();
@@ -263,6 +296,8 @@ int main(int argc, char *argv[]) {
test_dns_name_root();
test_dns_name_single_label();
test_dns_name_reverse();
test_dns_name_concat();
test_dns_name_is_valid();
return 0;
}