123 lines
4.2 KiB
C
123 lines
4.2 KiB
C
/*------------------------------------------------------------------
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* safe_mem_lib.h -- Safe C Library Memory APIs
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*
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* October 2008, Bo Berry
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* Modified 2012, Jonathan Toppins <jtoppins@users.sourceforge.net>
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*
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* Copyright (c) 2008-2012 by Cisco Systems, Inc.
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* All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use,
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* copy, modify, merge, publish, distribute, sublicense, and/or
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* sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*------------------------------------------------------------------
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*/
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#ifndef __SAFE_MEM_LIB_H__
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#define __SAFE_MEM_LIB_H__
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#include "safe_lib.h"
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#include <wchar.h>
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#define RSIZE_MAX_MEM ( 256UL << 20 ) /* 256MB */
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#define RSIZE_MAX_MEM16 ( RSIZE_MAX_MEM/2 )
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#define RSIZE_MAX_MEM32 ( RSIZE_MAX_MEM/4 )
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/* set memory constraint handler */
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extern constraint_handler_t
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set_mem_constraint_handler_s(constraint_handler_t handler);
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/* compare memory */
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extern errno_t memcmp_s(const void *dest, rsize_t dmax,
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const void *src, rsize_t slen, int *diff);
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/* compare uint16_t memory */
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extern errno_t memcmp16_s(const uint16_t *dest, rsize_t dmax,
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const uint16_t *src, rsize_t slen, int *diff);
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/* compare uint32_t memory */
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extern errno_t memcmp32_s(const uint32_t *dest, rsize_t dmax,
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const uint32_t *src, rsize_t slen, int *diff);
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/* wide compare memory */
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extern errno_t wmemcmp_s(const wchar_t *dest, rsize_t dmax,
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const wchar_t *src, rsize_t smax, int *diff);
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/* copy memory */
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extern errno_t memcpy_s(void *dest, rsize_t dmax,
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const void *src, rsize_t slen);
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/* copy uint16_t memory */
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extern errno_t memcpy16_s(uint16_t *dest, rsize_t dmax,
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const uint16_t *src, rsize_t slen);
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/* copy uint32_t memory */
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extern errno_t memcpy32_s(uint32_t *dest, rsize_t dmax,
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const uint32_t *src, rsize_t slen);
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/* copy wchar_t memory */
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extern errno_t wmemcpy_s(wchar_t *dest, rsize_t dmax,
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const wchar_t *src, rsize_t slen);
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/* move memory, including overlapping memory */
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extern errno_t memmove_s(void *dest, rsize_t dmax,
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const void *src, rsize_t slen);
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/* uint16_t move memory, including overlapping memory */
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extern errno_t memmove16_s(uint16_t *dest, rsize_t dmax,
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const uint16_t *src, rsize_t slen);
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/* uint32_t move memory, including overlapping memory */
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extern errno_t memmove32_s(uint32_t *dest, rsize_t dmax,
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const uint32_t *src, rsize_t slen);
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/* copy wchar_t memory, including overlapping memory */
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extern errno_t wmemmove_s(wchar_t *dest, rsize_t dmax,
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const wchar_t *src, rsize_t slen);
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/* set bytes */
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extern errno_t memset_s(void *dest, rsize_t dmax, uint8_t value);
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/* set uint16_t */
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extern errno_t memset16_s(uint16_t *dest, rsize_t dmax, uint16_t value);
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/* set uint32_t */
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extern errno_t memset32_s(uint32_t *dest, rsize_t dmax, uint32_t value);
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/* wide set bytes */
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extern errno_t wmemset_s(wchar_t *dest, wchar_t value, rsize_t len);
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/* byte zero */
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extern errno_t memzero_s(void *dest, rsize_t dmax);
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/* uint16_t zero */
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extern errno_t memzero16_s(uint16_t *dest, rsize_t dmax);
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/* uint32_t zero */
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extern errno_t memzero32_s(uint32_t *dest, rsize_t dmax);
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#endif /* __SAFE_MEM_LIB_H__ */
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