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/*
20140302
Jan Mojzis
Public domain.
*/
/*
XXX TODO
- check if byte_isequal is constant-time
*/
#include <stdio.h>
#include "fail.h"
#include "byte.h"
int main(void) {
unsigned char b1[32];
unsigned char b2[32];
long long i, j;
const char *x = "abcdefgh";
char y[8];
/* byte_zero test */
for (i = 0; i < 32; ++i) {
for (j = 0; j < sizeof b1; ++j) b1[j] = 0;
for (j = 0; j < sizeof b2; ++j) b2[j] = 0;
b1[i] = 0xff; b2[i] = 0xff;
byte_zero(b1, sizeof b1);
if (byte_isequal(b1, 32, b2) != 0) fail("byte_zero failure");
}
/* byte_isequal test */
for (i = 0; i < sizeof b1; ++i) b1[i] = 0xff;
for (i = 0; i < sizeof b2; ++i) b2[i] = 0xff;
if (byte_isequal(b1, 32, b2) == 0) fail("byte_isequal failure");
for (i = 0; i < 32; ++i) {
b1[i] = 0;
if (byte_isequal(b1, 32, b2) != 0) fail("byte_isequal failure");
b1[i] = 0xff;
}
/* byte_copy test */
for (i = 0; i < sizeof b1; ++i) b1[i] = 0xff;
for (i = 0; i < sizeof b2; ++i) b2[i] = 0x00;
byte_copy(b1, 32, b2);
if (byte_isequal(b1, 32, b2) == 0) fail("byte_copy failure");
for (i = 0; i < 32; ++i) {
b1[i] = 0;
byte_copy(b1, 32, b2);
if (byte_isequal(b1, 32, b2) == 0) fail("byte_copy failure");
b1[i] = 0xff;
}
byte_zero(y, 8);
if (!byte_isequal(y, 8, "\0\0\0\0\0\0\0\0")) fail("byte_zero/byte_isequal failure");
byte_copy(y, 8, x);
if (!byte_isequal(y, 8, x)) fail("byte_copy/byte_isequal failure");
byte_copy(y, 7, y + 1);
if (!byte_isequal(y, 8, "bcdefghh")) fail("byte_copy/byte_isequal failure");
byte_zero(y, 8);
if (!byte_isequal(y, 8, "\0\0\0\0\0\0\0\0")) fail("byte_zero/byte_isequal failure");
return 0;
}
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