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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <errno.h>
#include "dhcp-lease-internal.h"
#include "macro.h"
#include "string-util.h"
#include "strv.h"
/* According to RFC1035 section 4.1.4, a domain name in a message can be either:
* - a sequence of labels ending in a zero octet
* - a pointer
* - a sequence of labels ending with a pointer
*/
static void test_dhcp_lease_parse_search_domains_basic(void) {
int r;
_cleanup_strv_free_ char **domains = NULL;
static const uint8_t optionbuf[] = {
0x03, 'F', 'O', 'O', 0x03, 'B', 'A', 'R', 0x00,
0x04, 'A', 'B', 'C', 'D', 0x03, 'E', 'F', 'G', 0x00,
};
r = dhcp_lease_parse_search_domains(optionbuf, sizeof(optionbuf), &domains);
assert_se(r == 2);
assert_se(streq(domains[0], "FOO.BAR"));
assert_se(streq(domains[1], "ABCD.EFG"));
}
static void test_dhcp_lease_parse_search_domains_ptr(void) {
int r;
_cleanup_strv_free_ char **domains = NULL;
static const uint8_t optionbuf[] = {
0x03, 'F', 'O', 'O', 0x00, 0xC0, 0x00,
};
r = dhcp_lease_parse_search_domains(optionbuf, sizeof(optionbuf), &domains);
assert_se(r == 2);
assert_se(streq(domains[0], "FOO"));
assert_se(streq(domains[1], "FOO"));
}
static void test_dhcp_lease_parse_search_domains_labels_and_ptr(void) {
int r;
_cleanup_strv_free_ char **domains = NULL;
static const uint8_t optionbuf[] = {
0x03, 'F', 'O', 'O', 0x03, 'B', 'A', 'R', 0x00,
0x03, 'A', 'B', 'C', 0xC0, 0x04,
};
r = dhcp_lease_parse_search_domains(optionbuf, sizeof(optionbuf), &domains);
assert_se(r == 2);
assert_se(streq(domains[0], "FOO.BAR"));
assert_se(streq(domains[1], "ABC.BAR"));
}
/* Tests for exceptions. */
static void test_dhcp_lease_parse_search_domains_no_data(void) {
_cleanup_strv_free_ char **domains = NULL;
static const uint8_t optionbuf[3] = {0, 0, 0};
assert_se(dhcp_lease_parse_search_domains(NULL, 0, &domains) == -ENODATA);
assert_se(dhcp_lease_parse_search_domains(optionbuf, 0, &domains) == -ENODATA);
}
static void test_dhcp_lease_parse_search_domains_loops(void) {
_cleanup_strv_free_ char **domains = NULL;
static const uint8_t optionbuf[] = {
0x03, 'F', 'O', 'O', 0x00, 0x03, 'B', 'A', 'R', 0xC0, 0x06,
};
assert_se(dhcp_lease_parse_search_domains(optionbuf, sizeof(optionbuf), &domains) == -EBADMSG);
}
static void test_dhcp_lease_parse_search_domains_wrong_len(void) {
_cleanup_strv_free_ char **domains = NULL;
static const uint8_t optionbuf[] = {
0x03, 'F', 'O', 'O', 0x03, 'B', 'A', 'R', 0x00,
0x04, 'A', 'B', 'C', 'D', 0x03, 'E', 'F', 'G', 0x00,
};
assert_se(dhcp_lease_parse_search_domains(optionbuf, sizeof(optionbuf) - 5, &domains) == -EBADMSG);
}
int main(int argc, char *argv[]) {
test_dhcp_lease_parse_search_domains_basic();
test_dhcp_lease_parse_search_domains_ptr();
test_dhcp_lease_parse_search_domains_labels_and_ptr();
test_dhcp_lease_parse_search_domains_no_data();
test_dhcp_lease_parse_search_domains_loops();
test_dhcp_lease_parse_search_domains_wrong_len();
return 0;
}
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