Files
android/libwvdrmengine/oemcrypto/odk/src/odk_util.c
Fred Gylys-Colwell e51c9fbbb8 Update license comment
Merge from Widevine repo of http://go/wvgerrit/121950

Remove term "Master" from "Widevine Master License Agreement".

Bug: 168562298
Change-Id: I655babf1bc447f4872f6a0f849107262be42df7a
2021-04-12 14:10:08 -07:00

35 lines
898 B
C

// Copyright 2019 Google LLC. All rights reserved. This file and proprietary
// source code may only be used and distributed under the Widevine
// License Agreement.
#include "odk_util.h"
int crypto_memcmp(const void* in_a, const void* in_b, size_t len) {
if (len == 0) {
return 0;
}
/* Only valid pointers are allowed. */
if (in_a == NULL || in_b == NULL) {
return -1;
}
const uint8_t* a = (const uint8_t*)in_a;
const uint8_t* b = (const uint8_t*)in_b;
uint8_t x = 0;
for (size_t i = 0; i < len; i++) {
x |= a[i] ^ b[i];
}
return x;
}
bool ODK_NonceValuesEqual(const ODK_NonceValues* a, const ODK_NonceValues* b) {
if (a == NULL || b == NULL) {
return (a == b);
}
return (a->api_major_version == b->api_major_version &&
a->api_minor_version == b->api_minor_version &&
a->nonce == b->nonce && a->session_id == b->session_id);
}