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Up to [local] / src / include

o Ansi function headers
o Add __BEGIN_DECLS/__END_DECLS to include files
o Safe macros
o Remove useless variable assignment in the End function of *hl.c
o Some minor KNF, needs more
From Dan Weeks

/*	$OpenBSD: sha1.h,v 1.11 2002/12/23 04:33:31 millert Exp $	*/

/*
 * SHA-1 in C
 * By Steve Reid <steve@edmweb.com>
 * 100% Public Domain
 */

#ifndef _SHA1_H
#define _SHA1_H

typedef struct {
    u_int32_t state[5];
    u_int32_t count[2];
    u_char buffer[64];
} SHA1_CTX;

#include <sys/cdefs.h>

__BEGIN_DECLS
void SHA1Transform(u_int32_t state[5], const u_char buffer[64]);
void SHA1Init(SHA1_CTX *context);
void SHA1Update(SHA1_CTX *context, const u_char *data, u_int len);
void SHA1Final(u_char digest[20], SHA1_CTX *context);
char *SHA1End(SHA1_CTX *, char *);
char *SHA1File(char *, char *);
char *SHA1Data(const u_char *, size_t, char *);
__END_DECLS

#define SHA1_DIGESTSIZE       20
#define SHA1_BLOCKSIZE        64
#define HTONDIGEST(x) do {                                              \
        x[0] = htonl(x[0]);                                             \
        x[1] = htonl(x[1]);                                             \
        x[2] = htonl(x[2]);                                             \
        x[3] = htonl(x[3]);                                             \
        x[4] = htonl(x[4]); } while (0)

#define NTOHDIGEST(x) do {                                              \
        x[0] = ntohl(x[0]);                                             \
        x[1] = ntohl(x[1]);                                             \
        x[2] = ntohl(x[2]);                                             \
        x[3] = ntohl(x[3]);                                             \
        x[4] = ntohl(x[4]); } while (0)

#endif /* _SHA1_H */