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Systemd/src/test/test-dns-domain.c
Zbigniew Jędrzejewski-Szmek 11a1589223 tree-wide: drop license boilerplate 
Files which are installed as-is (any .service and other unit files, .conf
files, .policy files, etc), are left as is. My assumption is that SPDX
identifiers are not yet that well known, so it's better to retain the
extended header to avoid any doubt.

I also kept any copyright lines. We can probably remove them, but it'd nice to
obtain explicit acks from all involved authors before doing that.
2018-04-06 18:58:55 +02:00

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/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2014 Lennart Poettering
***/
#include "alloc-util.h"
#include "dns-domain.h"
#include "macro.h"
#include "string-util.h"
static void test_dns_label_unescape_one(const char *what, const char *expect, size_t buffer_sz, int ret) {
char buffer[buffer_sz];
int r;
r = dns_label_unescape(&what, buffer, buffer_sz);
assert_se(r == ret);
if (r < 0)
return;
assert_se(streq(buffer, expect));
}
static void test_dns_label_unescape(void) {
test_dns_label_unescape_one("hallo", "hallo", 6, 5);
test_dns_label_unescape_one("hallo", "hallo", 4, -ENOBUFS);
test_dns_label_unescape_one("", "", 10, 0);
test_dns_label_unescape_one("hallo\\.foobar", "hallo.foobar", 20, 12);
test_dns_label_unescape_one("hallo.foobar", "hallo", 10, 5);
test_dns_label_unescape_one("hallo\n.foobar", "hallo", 20, -EINVAL);
test_dns_label_unescape_one("hallo\\", "hallo", 20, -EINVAL);
test_dns_label_unescape_one("hallo\\032 ", "hallo ", 20, 7);
test_dns_label_unescape_one(".", "", 20, 0);
test_dns_label_unescape_one("..", "", 20, -EINVAL);
test_dns_label_unescape_one(".foobar", "", 20, -EINVAL);
test_dns_label_unescape_one("foobar.", "foobar", 20, 6);
test_dns_label_unescape_one("foobar..", "foobar", 20, -EINVAL);
}
static void test_dns_name_to_wire_format_one(const char *what, const char *expect, size_t buffer_sz, int ret) {
uint8_t buffer[buffer_sz];
int r;
r = dns_name_to_wire_format(what, buffer, buffer_sz, false);
assert_se(r == ret);
if (r < 0)
return;
assert_se(!memcmp(buffer, expect, r));
}
static void test_dns_name_to_wire_format(void) {
static const char out0[] = { 0 };
static const char out1[] = { 3, 'f', 'o', 'o', 0 };
static const char out2[] = { 5, 'h', 'a', 'l', 'l', 'o', 3, 'f', 'o', 'o', 3, 'b', 'a', 'r', 0 };
static const char out3[] = { 4, ' ', 'f', 'o', 'o', 3, 'b', 'a', 'r', 0 };
static const char out4[] = { 9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
9, 'a', '1', '2', '3', '4', '5', '6', '7', '8',
3, 'a', '1', '2', 0 };
test_dns_name_to_wire_format_one("", out0, sizeof(out0), sizeof(out0));
test_dns_name_to_wire_format_one("foo", out1, sizeof(out1), sizeof(out1));
test_dns_name_to_wire_format_one("foo", out1, sizeof(out1) + 1, sizeof(out1));
test_dns_name_to_wire_format_one("foo", out1, sizeof(out1) - 1, -ENOBUFS);
test_dns_name_to_wire_format_one("hallo.foo.bar", out2, sizeof(out2), sizeof(out2));
test_dns_name_to_wire_format_one("hallo.foo..bar", NULL, 32, -EINVAL);
test_dns_name_to_wire_format_one("\\032foo.bar", out3, sizeof(out3), sizeof(out3));
test_dns_name_to_wire_format_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a123", NULL, 500, -EINVAL);
test_dns_name_to_wire_format_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12", out4, sizeof(out4), sizeof(out4));
}
static void test_dns_label_unescape_suffix_one(const char *what, const char *expect1, const char *expect2, size_t buffer_sz, int ret1, int ret2) {
char buffer[buffer_sz];
const char *label;
int r;
label = what + strlen(what);
r = dns_label_unescape_suffix(what, &label, buffer, buffer_sz);
assert_se(r == ret1);
if (r >= 0)
assert_se(streq(buffer, expect1));
r = dns_label_unescape_suffix(what, &label, buffer, buffer_sz);
assert_se(r == ret2);
if (r >= 0)
assert_se(streq(buffer, expect2));
}
static void test_dns_label_unescape_suffix(void) {
test_dns_label_unescape_suffix_one("hallo", "hallo", "", 6, 5, 0);
test_dns_label_unescape_suffix_one("hallo", "hallo", "", 4, -ENOBUFS, -ENOBUFS);
test_dns_label_unescape_suffix_one("", "", "", 10, 0, 0);
test_dns_label_unescape_suffix_one("hallo\\.foobar", "hallo.foobar", "", 20, 12, 0);
test_dns_label_unescape_suffix_one("hallo.foobar", "foobar", "hallo", 10, 6, 5);
test_dns_label_unescape_suffix_one("hallo.foobar\n", "foobar", "foobar", 20, -EINVAL, -EINVAL);
test_dns_label_unescape_suffix_one("hallo\\", "hallo", "hallo", 20, -EINVAL, -EINVAL);
test_dns_label_unescape_suffix_one("hallo\\032 ", "hallo ", "", 20, 7, 0);
test_dns_label_unescape_suffix_one(".", "", "", 20, 0, 0);
test_dns_label_unescape_suffix_one("..", "", "", 20, 0, -EINVAL);
test_dns_label_unescape_suffix_one(".foobar", "foobar", "", 20, 6, -EINVAL);
test_dns_label_unescape_suffix_one("foobar.", "foobar", "", 20, 6, 0);
test_dns_label_unescape_suffix_one("foo\\\\bar", "foo\\bar", "", 20, 7, 0);
test_dns_label_unescape_suffix_one("foo.bar", "bar", "foo", 20, 3, 3);
test_dns_label_unescape_suffix_one("foo..bar", "bar", "", 20, 3, -EINVAL);
test_dns_label_unescape_suffix_one("foo...bar", "bar", "", 20, 3, -EINVAL);
test_dns_label_unescape_suffix_one("foo\\.bar", "foo.bar", "", 20, 7, 0);
test_dns_label_unescape_suffix_one("foo\\\\.bar", "bar", "foo\\", 20, 3, 4);
test_dns_label_unescape_suffix_one("foo\\\\\\.bar", "foo\\.bar", "", 20, 8, 0);
}
static void test_dns_label_escape_one(const char *what, size_t l, const char *expect, int ret) {
_cleanup_free_ char *t = NULL;
int r;
r = dns_label_escape_new(what, l, &t);
assert_se(r == ret);
if (r < 0)
return;
assert_se(streq_ptr(expect, t));
}
static void test_dns_label_escape(void) {
test_dns_label_escape_one("", 0, NULL, -EINVAL);
test_dns_label_escape_one("hallo", 5, "hallo", 5);
test_dns_label_escape_one("hallo", 6, "hallo\\000", 9);
test_dns_label_escape_one("hallo hallo.foobar,waldi", 24, "hallo\\032hallo\\.foobar\\044waldi", 31);
}
static void test_dns_name_normalize_one(const char *what, const char *expect, int ret) {
_cleanup_free_ char *t = NULL;
int r;
r = dns_name_normalize(what, &t);
assert_se(r == ret);
if (r < 0)
return;
assert_se(streq_ptr(expect, t));
}
static void test_dns_name_normalize(void) {
test_dns_name_normalize_one("", ".", 0);
test_dns_name_normalize_one("f", "f", 0);
test_dns_name_normalize_one("f.waldi", "f.waldi", 0);
test_dns_name_normalize_one("f \\032.waldi", "f\\032\\032.waldi", 0);
test_dns_name_normalize_one("\\000", "\\000", 0);
test_dns_name_normalize_one("..", NULL, -EINVAL);
test_dns_name_normalize_one(".foobar", NULL, -EINVAL);
test_dns_name_normalize_one("foobar.", "foobar", 0);
test_dns_name_normalize_one(".", ".", 0);
}
static void test_dns_name_equal_one(const char *a, const char *b, int ret) {
int r;
r = dns_name_equal(a, b);
assert_se(r == ret);
r = dns_name_equal(b, a);
assert_se(r == ret);
}
static void test_dns_name_equal(void) {
test_dns_name_equal_one("", "", true);
test_dns_name_equal_one("x", "x", true);
test_dns_name_equal_one("x", "x.", true);
test_dns_name_equal_one("abc.def", "abc.def", true);
test_dns_name_equal_one("abc.def", "ABC.def", true);
test_dns_name_equal_one("abc.def", "CBA.def", false);
test_dns_name_equal_one("", "xxx", false);
test_dns_name_equal_one("ab", "a", false);
test_dns_name_equal_one("\\000", "\\000", true);
test_dns_name_equal_one(".", "", true);
test_dns_name_equal_one(".", ".", true);
test_dns_name_equal_one("..", "..", -EINVAL);
}
static void test_dns_name_between_one(const char *a, const char *b, const char *c, int ret) {
int r;
r = dns_name_between(a, b, c);
assert_se(r == ret);
r = dns_name_between(c, b, a);
if (ret >= 0)
assert_se(r == 0 || dns_name_equal(a, c) > 0);
else
assert_se(r == ret);
}
static void test_dns_name_between(void) {
/* see https://tools.ietf.org/html/rfc4034#section-6.1
Note that we use "\033.z.example" in stead of "\001.z.example" as we
consider the latter invalid */
test_dns_name_between_one("example", "a.example", "yljkjljk.a.example", true);
test_dns_name_between_one("a.example", "yljkjljk.a.example", "Z.a.example", true);
test_dns_name_between_one("yljkjljk.a.example", "Z.a.example", "zABC.a.EXAMPLE", true);
test_dns_name_between_one("Z.a.example", "zABC.a.EXAMPLE", "z.example", true);
test_dns_name_between_one("zABC.a.EXAMPLE", "z.example", "\\033.z.example", true);
test_dns_name_between_one("z.example", "\\033.z.example", "*.z.example", true);
test_dns_name_between_one("\\033.z.example", "*.z.example", "\\200.z.example", true);
test_dns_name_between_one("*.z.example", "\\200.z.example", "example", true);
test_dns_name_between_one("\\200.z.example", "example", "a.example", true);
test_dns_name_between_one("example", "a.example", "example", true);
test_dns_name_between_one("example", "example", "example", false);
test_dns_name_between_one("example", "example", "yljkjljk.a.example", false);
test_dns_name_between_one("example", "yljkjljk.a.example", "yljkjljk.a.example", false);
}
static void test_dns_name_endswith_one(const char *a, const char *b, int ret) {
assert_se(dns_name_endswith(a, b) == ret);
}
static void test_dns_name_endswith(void) {
test_dns_name_endswith_one("", "", true);
test_dns_name_endswith_one("", "xxx", false);
test_dns_name_endswith_one("xxx", "", true);
test_dns_name_endswith_one("x", "x", true);
test_dns_name_endswith_one("x", "y", false);
test_dns_name_endswith_one("x.y", "y", true);
test_dns_name_endswith_one("x.y", "Y", true);
test_dns_name_endswith_one("x.y", "x", false);
test_dns_name_endswith_one("x.y.z", "Z", true);
test_dns_name_endswith_one("x.y.z", "y.Z", true);
test_dns_name_endswith_one("x.y.z", "x.y.Z", true);
test_dns_name_endswith_one("x.y.z", "waldo", false);
test_dns_name_endswith_one("x.y.z.u.v.w", "y.z", false);
test_dns_name_endswith_one("x.y.z.u.v.w", "u.v.w", true);
test_dns_name_endswith_one("x.y\001.z", "waldo", -EINVAL);
}
static void test_dns_name_startswith_one(const char *a, const char *b, int ret) {
assert_se(dns_name_startswith(a, b) == ret);
}
static void test_dns_name_startswith(void) {
test_dns_name_startswith_one("", "", true);
test_dns_name_startswith_one("", "xxx", false);
test_dns_name_startswith_one("xxx", "", true);
test_dns_name_startswith_one("x", "x", true);
test_dns_name_startswith_one("x", "y", false);
test_dns_name_startswith_one("x.y", "x.y", true);
test_dns_name_startswith_one("x.y", "y.x", false);
test_dns_name_startswith_one("x.y", "x", true);
test_dns_name_startswith_one("x.y", "X", true);
test_dns_name_startswith_one("x.y", "y", false);
test_dns_name_startswith_one("x.y", "", true);
test_dns_name_startswith_one("x.y", "X", true);
}
static void test_dns_name_is_root(void) {
assert_se(dns_name_is_root(""));
assert_se(dns_name_is_root("."));
assert_se(!dns_name_is_root("xxx"));
assert_se(!dns_name_is_root("xxx."));
assert_se(!dns_name_is_root(".."));
}
static void test_dns_name_is_single_label(void) {
assert_se(!dns_name_is_single_label(""));
assert_se(!dns_name_is_single_label("."));
assert_se(!dns_name_is_single_label(".."));
assert_se(dns_name_is_single_label("x"));
assert_se(dns_name_is_single_label("x."));
assert_se(!dns_name_is_single_label("xx.yy"));
}
static void test_dns_name_reverse_one(const char *address, const char *name) {
_cleanup_free_ char *p = NULL;
union in_addr_union a, b = {};
int familya, familyb;
assert_se(in_addr_from_string_auto(address, &familya, &a) >= 0);
assert_se(dns_name_reverse(familya, &a, &p) >= 0);
assert_se(streq(p, name));
assert_se(dns_name_address(p, &familyb, &b) > 0);
assert_se(familya == familyb);
assert_se(in_addr_equal(familya, &a, &b));
}
static void test_dns_name_reverse(void) {
test_dns_name_reverse_one("47.11.8.15", "15.8.11.47.in-addr.arpa");
test_dns_name_reverse_one("fe80::47", "7.4.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.f.ip6.arpa");
test_dns_name_reverse_one("127.0.0.1", "1.0.0.127.in-addr.arpa");
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("", "", 0, ".");
test_dns_name_concat_one(".", "", 0, ".");
test_dns_name_concat_one("", ".", 0, ".");
test_dns_name_concat_one(".", ".", 0, ".");
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", ".", 0, "foo");
test_dns_name_concat_one("foo.", "bar.", 0, "foo.bar");
test_dns_name_concat_one(NULL, NULL, 0, ".");
test_dns_name_concat_one(NULL, ".", 0, ".");
test_dns_name_concat_one(NULL, "foo", 0, "foo");
}
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..", 0);
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("foo.bar..", 0);
test_dns_name_is_valid_one("\\zbar", 0);
test_dns_name_is_valid_one("ä", 1);
test_dns_name_is_valid_one("\n", 0);
/* 256 characters */
test_dns_name_is_valid_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345", 0);
/* 255 characters */
test_dns_name_is_valid_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a1234", 0);
/* 254 characters */
test_dns_name_is_valid_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a123", 0);
/* 253 characters */
test_dns_name_is_valid_one("a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12345678.a12", 1);
/* label of 64 chars length */
test_dns_name_is_valid_one("a123456789a123456789a123456789a123456789a123456789a123456789a123", 0);
/* label of 63 chars length */
test_dns_name_is_valid_one("a123456789a123456789a123456789a123456789a123456789a123456789a12", 1);
}
static void test_dns_service_name_is_valid(void) {
assert_se(dns_service_name_is_valid("Lennart's Compüter"));
assert_se(dns_service_name_is_valid("piff.paff"));
assert_se(!dns_service_name_is_valid(NULL));
assert_se(!dns_service_name_is_valid(""));
assert_se(!dns_service_name_is_valid("foo\nbar"));
assert_se(!dns_service_name_is_valid("foo\201bar"));
assert_se(!dns_service_name_is_valid("this is an overly long string that is certainly longer than 63 characters"));
}
static void test_dns_srv_type_is_valid(void) {
assert_se(dns_srv_type_is_valid("_http._tcp"));
assert_se(dns_srv_type_is_valid("_foo-bar._tcp"));
assert_se(dns_srv_type_is_valid("_w._udp"));
assert_se(dns_srv_type_is_valid("_a800._tcp"));
assert_se(dns_srv_type_is_valid("_a-800._tcp"));
assert_se(!dns_srv_type_is_valid(NULL));
assert_se(!dns_srv_type_is_valid(""));
assert_se(!dns_srv_type_is_valid("x"));
assert_se(!dns_srv_type_is_valid("_foo"));
assert_se(!dns_srv_type_is_valid("_tcp"));
assert_se(!dns_srv_type_is_valid("_"));
assert_se(!dns_srv_type_is_valid("_foo."));
assert_se(!dns_srv_type_is_valid("_föo._tcp"));
assert_se(!dns_srv_type_is_valid("_f\no._tcp"));
assert_se(!dns_srv_type_is_valid("_800._tcp"));
assert_se(!dns_srv_type_is_valid("_-800._tcp"));
assert_se(!dns_srv_type_is_valid("_-foo._tcp"));
assert_se(!dns_srv_type_is_valid("_piep._foo._udp"));
}
static void test_dnssd_srv_type_is_valid(void) {
assert_se(dnssd_srv_type_is_valid("_http._tcp"));
assert_se(dnssd_srv_type_is_valid("_foo-bar._tcp"));
assert_se(dnssd_srv_type_is_valid("_w._udp"));
assert_se(dnssd_srv_type_is_valid("_a800._tcp"));
assert_se(dnssd_srv_type_is_valid("_a-800._tcp"));
assert_se(!dnssd_srv_type_is_valid(NULL));
assert_se(!dnssd_srv_type_is_valid(""));
assert_se(!dnssd_srv_type_is_valid("x"));
assert_se(!dnssd_srv_type_is_valid("_foo"));
assert_se(!dnssd_srv_type_is_valid("_tcp"));
assert_se(!dnssd_srv_type_is_valid("_"));
assert_se(!dnssd_srv_type_is_valid("_foo."));
assert_se(!dnssd_srv_type_is_valid("_föo._tcp"));
assert_se(!dnssd_srv_type_is_valid("_f\no._tcp"));
assert_se(!dnssd_srv_type_is_valid("_800._tcp"));
assert_se(!dnssd_srv_type_is_valid("_-800._tcp"));
assert_se(!dnssd_srv_type_is_valid("_-foo._tcp"));
assert_se(!dnssd_srv_type_is_valid("_piep._foo._udp"));
assert_se(!dnssd_srv_type_is_valid("_foo._unknown"));
}
static void test_dns_service_join_one(const char *a, const char *b, const char *c, int r, const char *d) {
_cleanup_free_ char *x = NULL, *y = NULL, *z = NULL, *t = NULL;
assert_se(dns_service_join(a, b, c, &t) == r);
assert_se(streq_ptr(t, d));
if (r < 0)
return;
assert_se(dns_service_split(t, &x, &y, &z) >= 0);
assert_se(streq_ptr(a, x));
assert_se(streq_ptr(b, y));
assert_se(dns_name_equal(c, z) > 0);
}
static void test_dns_service_join(void) {
test_dns_service_join_one("", "", "", -EINVAL, NULL);
test_dns_service_join_one("", "_http._tcp", "", -EINVAL, NULL);
test_dns_service_join_one("", "_http._tcp", "foo", -EINVAL, NULL);
test_dns_service_join_one("foo", "", "foo", -EINVAL, NULL);
test_dns_service_join_one("foo", "foo", "foo", -EINVAL, NULL);
test_dns_service_join_one("foo", "_http._tcp", "", 0, "foo._http._tcp");
test_dns_service_join_one(NULL, "_http._tcp", "", 0, "_http._tcp");
test_dns_service_join_one("foo", "_http._tcp", "foo", 0, "foo._http._tcp.foo");
test_dns_service_join_one(NULL, "_http._tcp", "foo", 0, "_http._tcp.foo");
test_dns_service_join_one("Lennart's PC", "_pc._tcp", "foo.bar.com", 0, "Lennart\\039s\\032PC._pc._tcp.foo.bar.com");
test_dns_service_join_one(NULL, "_pc._tcp", "foo.bar.com", 0, "_pc._tcp.foo.bar.com");
}
static void test_dns_service_split_one(const char *joined, const char *a, const char *b, const char *c, int r) {
_cleanup_free_ char *x = NULL, *y = NULL, *z = NULL, *t = NULL;
assert_se(dns_service_split(joined, &x, &y, &z) == r);
assert_se(streq_ptr(x, a));
assert_se(streq_ptr(y, b));
assert_se(streq_ptr(z, c));
if (r < 0)
return;
if (y) {
assert_se(dns_service_join(x, y, z, &t) == 0);
assert_se(dns_name_equal(joined, t) > 0);
} else
assert_se(!x && dns_name_equal(z, joined) > 0);
}
static void test_dns_service_split(void) {
test_dns_service_split_one("", NULL, NULL, ".", 0);
test_dns_service_split_one("foo", NULL, NULL, "foo", 0);
test_dns_service_split_one("foo.bar", NULL, NULL, "foo.bar", 0);
test_dns_service_split_one("_foo.bar", NULL, NULL, "_foo.bar", 0);
test_dns_service_split_one("_foo._bar", NULL, "_foo._bar", ".", 0);
test_dns_service_split_one("_meh._foo._bar", "_meh", "_foo._bar", ".", 0);
test_dns_service_split_one("Wuff\\032Wuff._foo._bar.waldo.com", "Wuff Wuff", "_foo._bar", "waldo.com", 0);
}
static void test_dns_name_change_suffix_one(const char *name, const char *old_suffix, const char *new_suffix, int r, const char *result) {
_cleanup_free_ char *s = NULL;
assert_se(dns_name_change_suffix(name, old_suffix, new_suffix, &s) == r);
assert_se(streq_ptr(s, result));
}
static void test_dns_name_change_suffix(void) {
test_dns_name_change_suffix_one("foo.bar", "bar", "waldo", 1, "foo.waldo");
test_dns_name_change_suffix_one("foo.bar.waldi.quux", "foo.bar.waldi.quux", "piff.paff", 1, "piff.paff");
test_dns_name_change_suffix_one("foo.bar.waldi.quux", "bar.waldi.quux", "piff.paff", 1, "foo.piff.paff");
test_dns_name_change_suffix_one("foo.bar.waldi.quux", "waldi.quux", "piff.paff", 1, "foo.bar.piff.paff");
test_dns_name_change_suffix_one("foo.bar.waldi.quux", "quux", "piff.paff", 1, "foo.bar.waldi.piff.paff");
test_dns_name_change_suffix_one("foo.bar.waldi.quux", "", "piff.paff", 1, "foo.bar.waldi.quux.piff.paff");
test_dns_name_change_suffix_one("", "", "piff.paff", 1, "piff.paff");
test_dns_name_change_suffix_one("", "", "", 1, ".");
test_dns_name_change_suffix_one("a", "b", "c", 0, NULL);
}
static void test_dns_name_suffix_one(const char *name, unsigned n_labels, const char *result, int ret) {
const char *p = NULL;
assert_se(ret == dns_name_suffix(name, n_labels, &p));
assert_se(streq_ptr(p, result));
}
static void test_dns_name_suffix(void) {
test_dns_name_suffix_one("foo.bar", 2, "foo.bar", 0);
test_dns_name_suffix_one("foo.bar", 1, "bar", 1);
test_dns_name_suffix_one("foo.bar", 0, "", 2);
test_dns_name_suffix_one("foo.bar", 3, NULL, -EINVAL);
test_dns_name_suffix_one("foo.bar", 4, NULL, -EINVAL);
test_dns_name_suffix_one("bar", 1, "bar", 0);
test_dns_name_suffix_one("bar", 0, "", 1);
test_dns_name_suffix_one("bar", 2, NULL, -EINVAL);
test_dns_name_suffix_one("bar", 3, NULL, -EINVAL);
test_dns_name_suffix_one("", 0, "", 0);
test_dns_name_suffix_one("", 1, NULL, -EINVAL);
test_dns_name_suffix_one("", 2, NULL, -EINVAL);
}
static void test_dns_name_count_labels_one(const char *name, int n) {
assert_se(dns_name_count_labels(name) == n);
}
static void test_dns_name_count_labels(void) {
test_dns_name_count_labels_one("foo.bar.quux.", 3);
test_dns_name_count_labels_one("foo.bar.quux", 3);
test_dns_name_count_labels_one("foo.bar.", 2);
test_dns_name_count_labels_one("foo.bar", 2);
test_dns_name_count_labels_one("foo.", 1);
test_dns_name_count_labels_one("foo", 1);
test_dns_name_count_labels_one("", 0);
test_dns_name_count_labels_one(".", 0);
test_dns_name_count_labels_one("..", -EINVAL);
}
static void test_dns_name_equal_skip_one(const char *a, unsigned n_labels, const char *b, int ret) {
assert_se(dns_name_equal_skip(a, n_labels, b) == ret);
}
static void test_dns_name_equal_skip(void) {
test_dns_name_equal_skip_one("foo", 0, "bar", 0);
test_dns_name_equal_skip_one("foo", 0, "foo", 1);
test_dns_name_equal_skip_one("foo", 1, "foo", 0);
test_dns_name_equal_skip_one("foo", 2, "foo", 0);
test_dns_name_equal_skip_one("foo.bar", 0, "foo.bar", 1);
test_dns_name_equal_skip_one("foo.bar", 1, "foo.bar", 0);
test_dns_name_equal_skip_one("foo.bar", 2, "foo.bar", 0);
test_dns_name_equal_skip_one("foo.bar", 3, "foo.bar", 0);
test_dns_name_equal_skip_one("foo.bar", 0, "bar", 0);
test_dns_name_equal_skip_one("foo.bar", 1, "bar", 1);
test_dns_name_equal_skip_one("foo.bar", 2, "bar", 0);
test_dns_name_equal_skip_one("foo.bar", 3, "bar", 0);
test_dns_name_equal_skip_one("foo.bar", 0, "", 0);
test_dns_name_equal_skip_one("foo.bar", 1, "", 0);
test_dns_name_equal_skip_one("foo.bar", 2, "", 1);
test_dns_name_equal_skip_one("foo.bar", 3, "", 0);
test_dns_name_equal_skip_one("", 0, "", 1);
test_dns_name_equal_skip_one("", 1, "", 0);
test_dns_name_equal_skip_one("", 1, "foo", 0);
test_dns_name_equal_skip_one("", 2, "foo", 0);
}
static void test_dns_name_compare_func(void) {
assert_se(dns_name_compare_func("", "") == 0);
assert_se(dns_name_compare_func("", ".") == 0);
assert_se(dns_name_compare_func(".", "") == 0);
assert_se(dns_name_compare_func("foo", "foo.") == 0);
assert_se(dns_name_compare_func("foo.", "foo") == 0);
assert_se(dns_name_compare_func("foo", "foo") == 0);
assert_se(dns_name_compare_func("foo.", "foo.") == 0);
assert_se(dns_name_compare_func("heise.de", "HEISE.DE.") == 0);
assert_se(dns_name_compare_func("de.", "heise.de") != 0);
}
static void test_dns_name_common_suffix_one(const char *a, const char *b, const char *result) {
const char *c;
assert_se(dns_name_common_suffix(a, b, &c) >= 0);
assert_se(streq(c, result));
}
static void test_dns_name_common_suffix(void) {
test_dns_name_common_suffix_one("", "", "");
test_dns_name_common_suffix_one("foo", "", "");
test_dns_name_common_suffix_one("", "foo", "");
test_dns_name_common_suffix_one("foo", "bar", "");
test_dns_name_common_suffix_one("bar", "foo", "");
test_dns_name_common_suffix_one("foo", "foo", "foo");
test_dns_name_common_suffix_one("quux.foo", "foo", "foo");
test_dns_name_common_suffix_one("foo", "quux.foo", "foo");
test_dns_name_common_suffix_one("this.is.a.short.sentence", "this.is.another.short.sentence", "short.sentence");
test_dns_name_common_suffix_one("FOO.BAR", "tEST.bAR", "BAR");
}
static void test_dns_name_apply_idna_one(const char *s, int expected, const char *result) {
_cleanup_free_ char *buf = NULL;
int r;
r = dns_name_apply_idna(s, &buf);
log_debug("dns_name_apply_idna: \"%s\" → %d/\"%s\" (expected %d/\"%s\")",
s, r, strnull(buf), expected, strnull(result));
/* Different libidn2 versions are more and less accepting
* of underscore-prefixed names. So let's list the lowest
* expected return value. */
assert_se(r >= expected);
if (expected == 1)
assert_se(dns_name_equal(buf, result) == 1);
}
static void test_dns_name_apply_idna(void) {
#if HAVE_LIBIDN2 || HAVE_LIBIDN
const int ret = 1;
#else
const int ret = 0;
#endif
/* IDNA2008 forbids names with hyphens in third and fourth positions
* (https://tools.ietf.org/html/rfc5891#section-4.2.3.1).
* IDNA2003 does not have this restriction
* (https://tools.ietf.org/html/rfc3490#section-5).
* This means that when using libidn we will transform and test more
* labels. If registrars follow IDNA2008 we'll just be performing a
* useless lookup.
*/
#if HAVE_LIBIDN
const int ret2 = 1;
#else
const int ret2 = 0;
#endif
test_dns_name_apply_idna_one("", ret, "");
test_dns_name_apply_idna_one("foo", ret, "foo");
test_dns_name_apply_idna_one("foo.", ret, "foo");
test_dns_name_apply_idna_one("foo.bar", ret, "foo.bar");
test_dns_name_apply_idna_one("foo.bar.", ret, "foo.bar");
test_dns_name_apply_idna_one("föö", ret, "xn--f-1gaa");
test_dns_name_apply_idna_one("föö.", ret, "xn--f-1gaa");
test_dns_name_apply_idna_one("föö.bär", ret, "xn--f-1gaa.xn--br-via");
test_dns_name_apply_idna_one("föö.bär.", ret, "xn--f-1gaa.xn--br-via");
test_dns_name_apply_idna_one("xn--f-1gaa.xn--br-via", ret, "xn--f-1gaa.xn--br-via");
test_dns_name_apply_idna_one("_443._tcp.fedoraproject.org", ret2,
"_443._tcp.fedoraproject.org");
test_dns_name_apply_idna_one("_443", ret2, "_443");
test_dns_name_apply_idna_one("gateway", ret, "gateway");
test_dns_name_apply_idna_one("_gateway", ret2, "_gateway");
test_dns_name_apply_idna_one("r3---sn-ab5l6ne7.googlevideo.com", ret2,
ret2 ? "r3---sn-ab5l6ne7.googlevideo.com" : "");
}
static void test_dns_name_is_valid_or_address(void) {
assert_se(dns_name_is_valid_or_address(NULL) == 0);
assert_se(dns_name_is_valid_or_address("") == 0);
assert_se(dns_name_is_valid_or_address("foobar") > 0);
assert_se(dns_name_is_valid_or_address("foobar.com") > 0);
assert_se(dns_name_is_valid_or_address("foobar..com") == 0);
assert_se(dns_name_is_valid_or_address("foobar.com.") > 0);
assert_se(dns_name_is_valid_or_address("127.0.0.1") > 0);
assert_se(dns_name_is_valid_or_address("::") > 0);
assert_se(dns_name_is_valid_or_address("::1") > 0);
}
int main(int argc, char *argv[]) {
log_set_max_level(LOG_DEBUG);
log_parse_environment();
log_open();
test_dns_label_unescape();
test_dns_label_unescape_suffix();
test_dns_label_escape();
test_dns_name_normalize();
test_dns_name_equal();
test_dns_name_endswith();
test_dns_name_startswith();
test_dns_name_between();
test_dns_name_is_root();
test_dns_name_is_single_label();
test_dns_name_reverse();
test_dns_name_concat();
test_dns_name_is_valid();
test_dns_name_to_wire_format();
test_dns_service_name_is_valid();
test_dns_srv_type_is_valid();
test_dnssd_srv_type_is_valid();
test_dns_service_join();
test_dns_service_split();
test_dns_name_change_suffix();
test_dns_name_suffix();
test_dns_name_count_labels();
test_dns_name_equal_skip();
test_dns_name_compare_func();
test_dns_name_common_suffix();
test_dns_name_apply_idna();
test_dns_name_is_valid_or_address();
return 0;
}
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