Coverage Report

Created: 2022-04-27 14:33

/libfido2/openbsd-compat/timingsafe_bcmp.c
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/*      $OpenBSD: timingsafe_bcmp.c,v 1.1 2010/09/24 13:33:00 matthew Exp $     */
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/*
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 * Copyright (c) 2010 Damien Miller.  All rights reserved.
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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/* OPENBSD ORIGINAL: lib/libc/string/timingsafe_bcmp.c */
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#include "openbsd-compat.h"
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#if !defined(HAVE_TIMINGSAFE_BCMP)
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int
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timingsafe_bcmp(const void *b1, const void *b2, size_t n)
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1.18k
{
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1.18k
        const unsigned char *p1 = b1, *p2 = b2;
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1.18k
        int ret = 0;
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        for (; n > 0; n--)
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                ret |= *p1++ ^ *p2++;
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1.18k
        return (ret != 0);
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1.18k
}
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#endif /* !defined(HAVE_TIMINGSAFE_BCMP) */