From ae7d4f67ba782f7f53deaf0596a2b52155617a6b Mon Sep 17 00:00:00 2001 From: Jonas Gunz Date: Wed, 2 Jun 2021 00:37:20 +0200 Subject: add dns tests --- tests/dns.c | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 tests/dns.c (limited to 'tests/dns.c') diff --git a/tests/dns.c b/tests/dns.c new file mode 100644 index 0000000..c100cd4 --- /dev/null +++ b/tests/dns.c @@ -0,0 +1,50 @@ +/* + * tests/dns.c + * (c) 2021 Jonas Gunz + * License: MIT + */ + +#include "tests.h" + +#include + +START_TEST (dns_qname) { + char in[128]; + char out[128]; + + strncpy ( in, "sub.domain.example.com\0", 127); + + ck_assert_int_gt( fqdn_to_qname (in,128,out,128), 0 ); + ck_assert_int_ge( qname_check(out,128), 0 ); + ck_assert_int_gt( qname_to_fqdn (out,128,in,128), 0); +} END_TEST + +START_TEST (dns_qname_fuzz) { + FILE* urand = fopen ("/dev/urandom", "r"); + char rand[128]; + const unsigned long int limit = 1000000; + unsigned long int valid_cnt = 0; + unsigned long int i; + + if ( !urand ) + ck_abort_msg("Failed to open /dev/urandom"); + + for ( i = 0; i < limit; i++) { + if (fread (rand, 128, 1, urand) > 0) { + if ( qname_check(rand, 128) > 0 ) { + valid_cnt++; + } + } + } + + ck_assert_float_le( (float)valid_cnt / (float)limit * 100, 10); +} + +TCase* test_dns(void) { + TCase *tc = tcase_create("DNS"); + + tcase_add_test(tc, dns_qname); + tcase_add_test(tc, dns_qname_fuzz); + + return tc; +} -- cgit v1.2.3