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#include "testutils.h"
#include "knuth-lfib.h"
#include "memops.h"
#if HAVE_VALGRIND_MEMCHECK_H
# include <valgrind/memcheck.h>
static int
memeql_sec_for_test(const void *a, const void *b, size_t n)
{
int res;
/* Makes valgrind trigger on any branches depending on the input
data. */
VALGRIND_MAKE_MEM_UNDEFINED (a, n);
VALGRIND_MAKE_MEM_UNDEFINED (b, n);
res = memeql_sec (a, b, n);
VALGRIND_MAKE_MEM_DEFINED (&res, sizeof(res));
return res;
}
#else
#define memeql_sec_for_test memeql_sec
#endif
#define MAX_SIZE 50
void
test_main(void)
{
uint8_t orig[MAX_SIZE];
uint8_t a[MAX_SIZE];
uint8_t b[MAX_SIZE];
struct knuth_lfib_ctx random_ctx;
knuth_lfib_init (&random_ctx, 11);
size_t size;
for (size = 0; size < 50; size++)
{
size_t i;
uint8_t bit;
knuth_lfib_random (&random_ctx, size, orig);
memcpy (a, orig, size);
memcpy (b, orig, size);
ASSERT (memeql_sec_for_test (a, b, size));
for (i = 0; i < size; i++)
for (bit = 0x80; bit; bit >>= 1)
{
b[i] = orig[i] ^ bit;
ASSERT (!memeql_sec_for_test (a, b, size));
b[i] = orig[i];
}
}
}
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