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tests: provide test for off-by-x error in ipv6_addr

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This commit is contained in:
Martine Lenders 2017-04-19 13:50:34 +02:00
parent 0cc15955f6
commit 7f778988c3
1 changed files with 16 additions and 0 deletions
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16
tests/unittests/tests-ipv6_addr/tests-ipv6_addr.c
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@ -896,6 +896,21 @@ static void test_ipv6_addr_from_str__one_colon_start(void)
TEST_ASSERT_NULL(ipv6_addr_from_str(&result, ":ff::1")); TEST_ASSERT_NULL(ipv6_addr_from_str(&result, ":ff::1"));
} }
#define CANARY_DATA 0xc2, 0x8c, 0x36, 0x26, 0x24, 0x16, 0xd1, 0xd6
static void test_ipv6_addr_from_str__overflow(void)
{
uint8_t result[] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
CANARY_DATA };
static const uint8_t canary_exp[] = { CANARY_DATA };
ipv6_addr_t *addr = (ipv6_addr_t *)&result[0];
uint8_t *canary = &result[sizeof(ipv6_addr_t)];
TEST_ASSERT_NULL(ipv6_addr_from_str(addr, "::A:A:A:A:A:A:A:A:A:A"));
TEST_ASSERT_EQUAL_INT(0, memcmp(canary, canary_exp, sizeof(canary_exp)));
}
static void test_ipv6_addr_from_str__three_colons(void) static void test_ipv6_addr_from_str__three_colons(void)
{ {
ipv6_addr_t result; ipv6_addr_t result;
@ -1086,6 +1101,7 @@ Test *tests_ipv6_addr_tests(void)
new_TestFixture(test_ipv6_addr_to_str__success4), new_TestFixture(test_ipv6_addr_to_str__success4),
new_TestFixture(test_ipv6_addr_to_str__success5), new_TestFixture(test_ipv6_addr_to_str__success5),
new_TestFixture(test_ipv6_addr_from_str__one_colon_start), new_TestFixture(test_ipv6_addr_from_str__one_colon_start),
new_TestFixture(test_ipv6_addr_from_str__overflow),
new_TestFixture(test_ipv6_addr_from_str__three_colons), new_TestFixture(test_ipv6_addr_from_str__three_colons),
new_TestFixture(test_ipv6_addr_from_str__string_too_long), new_TestFixture(test_ipv6_addr_from_str__string_too_long),
new_TestFixture(test_ipv6_addr_from_str__illegal_chars), new_TestFixture(test_ipv6_addr_from_str__illegal_chars),