freebsd-nq/sys/sys/md4.h
Alan Somers 8254c3c5d3 Fix C++ includability of crypto headers with static array sizes
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
2016-10-18 23:20:49 +00:00

51 lines
1.6 KiB
C

/* MD4.H - header file for MD4C.C
* $FreeBSD$
*/
/*-
Copyright (C) 1991-2, RSA Data Security, Inc. Created 1991. All
rights reserved.
License to copy and use this software is granted provided that it
is identified as the "RSA Data Security, Inc. MD4 Message-Digest
Algorithm" in all material mentioning or referencing this software
or this function.
License is also granted to make and use derivative works provided
that such works are identified as "derived from the RSA Data
Security, Inc. MD4 Message-Digest Algorithm" in all material
mentioning or referencing the derived work.
RSA Data Security, Inc. makes no representations concerning either
the merchantability of this software or the suitability of this
software for any particular purpose. It is provided "as is"
without express or implied warranty of any kind.
These notices must be retained in any copies of any part of this
documentation and/or software.
*/
#ifndef _MD4_H_
#define _MD4_H_
/* MD4 context. */
typedef struct MD4Context {
u_int32_t state[4]; /* state (ABCD) */
u_int32_t count[2]; /* number of bits, modulo 2^64 (lsb first) */
unsigned char buffer[64]; /* input buffer */
} MD4_CTX;
#include <sys/cdefs.h>
__BEGIN_DECLS
void MD4Init(MD4_CTX *);
void MD4Update(MD4_CTX *, const unsigned char *, unsigned int);
void MD4Pad(MD4_CTX *);
void MD4Final(unsigned char [__min_size(16)], MD4_CTX *);
#ifndef _KERNEL
char * MD4End(MD4_CTX *, char *);
char * MD4File(const char *, char *);
char * MD4Data(const unsigned char *, unsigned int, char *);
#endif
__END_DECLS
#endif /* _MD4_H_ */