7665614b2e
Merge of http://go/wvgerrit/93404 This CL updates the Widevine CDM to support OEMCrypto v16.1 Test: Tested in 16.2 CL Bug: 141247171 Change-Id: I69bd993500f6fb63bf6010c8b0250dc7acc3d71b
37 lines
690 B
C
37 lines
690 B
C
/* Copyright 2019 Google LLC. All rights reserved. This file and proprietary */
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/* source code may only be used and distributed under the Widevine Master */
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/* License Agreement. */
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#include <stddef.h>
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#include <stdint.h>
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int odk_sub_overflow_u64(uint64_t a, uint64_t b, uint64_t* c) {
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if (a >= b) {
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if (c) {
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*c = a - b;
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}
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return 0;
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}
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return 1;
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}
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int odk_add_overflow_u64(uint64_t a, uint64_t b, uint64_t* c) {
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if (UINT64_MAX - a >= b) {
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if (c) {
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*c = a + b;
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}
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return 0;
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}
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return 1;
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}
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int odk_add_overflow_ux(size_t a, size_t b, size_t* c) {
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if (SIZE_MAX - a >= b) {
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if (c) {
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*c = a + b;
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}
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return 0;
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}
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return 1;
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}
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