1bd8919011
C99 allows array function parameters to use the static keyword for their sizes. This tells the compiler that the parameter will have at least the specified size, and calling code will fail to compile if that guarantee is not met. However, this syntax is not legal in C++. This commit reverts r300824, which worked around the problem for sys/sys/md5.h only, and introduces a new macro: min_size(). min_size(x) can be used in headers as a static array size, but will still compile in C++ mode. Reviewed by: cem, ed MFC after: 4 weeks Sponsored by: Spectra Logic Corp Differential Revision: https://reviews.freebsd.org/D8277
100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
/*-
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* Copyright 2005 Colin Percival
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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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _SHA256_H_
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#define _SHA256_H_
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#ifndef _KERNEL
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#include <sys/types.h>
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#endif
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#define SHA256_BLOCK_LENGTH 64
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#define SHA256_DIGEST_LENGTH 32
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#define SHA256_DIGEST_STRING_LENGTH (SHA256_DIGEST_LENGTH * 2 + 1)
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typedef struct SHA256Context {
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uint32_t state[8];
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uint64_t count;
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uint8_t buf[SHA256_BLOCK_LENGTH];
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} SHA256_CTX;
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__BEGIN_DECLS
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/* Ensure libmd symbols do not clash with libcrypto */
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#ifndef SHA256_Init
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#define SHA256_Init _libmd_SHA256_Init
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#endif
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#ifndef SHA256_Update
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#define SHA256_Update _libmd_SHA256_Update
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#endif
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#ifndef SHA256_Final
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#define SHA256_Final _libmd_SHA256_Final
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#endif
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#ifndef SHA256_End
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#define SHA256_End _libmd_SHA256_End
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#endif
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#ifndef SHA256_Fd
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#define SHA256_Fd _libmd_SHA256_Fd
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#endif
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#ifndef SHA256_FdChunk
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#define SHA256_FdChunk _libmd_SHA256_FdChunk
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#endif
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#ifndef SHA256_File
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#define SHA256_File _libmd_SHA256_File
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#endif
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#ifndef SHA256_FileChunk
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#define SHA256_FileChunk _libmd_SHA256_FileChunk
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#endif
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#ifndef SHA256_Data
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#define SHA256_Data _libmd_SHA256_Data
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#endif
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#ifndef SHA256_Transform
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#define SHA256_Transform _libmd_SHA256_Transform
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#endif
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#ifndef SHA256_version
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#define SHA256_version _libmd_SHA256_version
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#endif
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void SHA256_Init(SHA256_CTX *);
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void SHA256_Update(SHA256_CTX *, const void *, size_t);
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void SHA256_Final(unsigned char [__min_size(SHA256_DIGEST_LENGTH)],
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SHA256_CTX *);
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#ifndef _KERNEL
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char *SHA256_End(SHA256_CTX *, char *);
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char *SHA256_Data(const void *, unsigned int, char *);
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char *SHA256_Fd(int, char *);
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char *SHA256_FdChunk(int, char *, off_t, off_t);
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char *SHA256_File(const char *, char *);
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char *SHA256_FileChunk(const char *, char *, off_t, off_t);
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#endif
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__END_DECLS
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#endif /* !_SHA256_H_ */
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