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https://github.com/Yubico/yubico-pam.git
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63 lines
2.6 KiB
C
63 lines
2.6 KiB
C
/* -*- mode:C; c-file-style: "bsd" -*- */
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/*
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* Copyright (c) 2008-2019 Yubico AB
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __YKBZERO_H_INCLUDED__
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#define __YKBZERO_H_INCLUDED__
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#ifdef _WIN32
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#include <windows.h>
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#else
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#include <string.h>
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#endif
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#ifdef _WIN32
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#define insecure_memzero(buf, len) SecureZeroMemory(buf, len)
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#elif HAVE_MEMSET_S
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#define insecure_memzero(buf, len) memset_s(buf, len, 0, len)
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#elif HAVE_EXPLICIT_BZERO
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#define insecure_memzero(buf, len) explicit_bzero(buf, len)
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#elif HAVE_EXPLICIT_MEMSET
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#define insecure_memzero(buf, len) explicit_memset(buf, 0, len)
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#elif HAVE_INLINE_ASM
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#define insecure_memzero(buf, len) do { \
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memset(buf, 0, len); \
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__asm__ __volatile__ ("" : : "r"(buf) : "memory"); \
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} while (0)
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#else
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#define insecure_memzero(buf, len) do { \
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volatile unsigned char *volatile __buf_ = \
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(volatile unsigned char *volatile)buf; \
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size_t __i_ = 0; \
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while (__i_ < len) __buf_[__i_++] = 0; \
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} while (0)
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#endif
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#endif /* __YKBZERO_H_INCLUDED__ */
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