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
58 lines
1.8 KiB
C
58 lines
1.8 KiB
C
/* MD5.H - header file for MD5C.C
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* $FreeBSD$
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*/
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/*-
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Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
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rights reserved.
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License to copy and use this software is granted provided that it
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is identified as the "RSA Data Security, Inc. MD5 Message-Digest
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Algorithm" in all material mentioning or referencing this software
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or this function.
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License is also granted to make and use derivative works provided
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that such works are identified as "derived from the RSA Data
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Security, Inc. MD5 Message-Digest Algorithm" in all material
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mentioning or referencing the derived work.
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RSA Data Security, Inc. makes no representations concerning either
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the merchantability of this software or the suitability of this
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software for any particular purpose. It is provided "as is"
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without express or implied warranty of any kind.
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These notices must be retained in any copies of any part of this
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documentation and/or software.
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*/
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#ifndef _SYS_MD5_H_
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#define _SYS_MD5_H_
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#define MD5_BLOCK_LENGTH 64
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#define MD5_DIGEST_LENGTH 16
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#define MD5_DIGEST_STRING_LENGTH (MD5_DIGEST_LENGTH * 2 + 1)
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/* MD5 context. */
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typedef struct MD5Context {
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u_int32_t state[4]; /* state (ABCD) */
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u_int32_t count[2]; /* number of bits, modulo 2^64 (lsb first) */
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unsigned char buffer[64]; /* input buffer */
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} MD5_CTX;
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#include <sys/cdefs.h>
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__BEGIN_DECLS
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void MD5Init (MD5_CTX *);
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void MD5Update (MD5_CTX *, const void *, unsigned int);
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void MD5Final (unsigned char[__min_size(MD5_DIGEST_LENGTH)], MD5_CTX *);
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#ifndef _KERNEL
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char * MD5End(MD5_CTX *, char *);
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char * MD5Fd(int, char *);
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char * MD5FdChunk(int, char *, off_t, off_t);
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char * MD5File(const char *, char *);
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char * MD5FileChunk(const char *, char *, off_t, off_t);
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char * MD5Data(const void *, unsigned int, char *);
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#endif
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__END_DECLS
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#endif /* _SYS_MD5_H_ */
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