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File: [cvs.NetBSD.org] / src / lib / libc / md / mdXhl.c (download)

Revision 1.7.26.1, Fri Mar 27 16:28:42 2009 UTC (11 years, 11 months ago) by msaitoh
Branch: netbsd-5
CVS Tags: netbsd-5-2-RELEASE, netbsd-5-2-RC1, netbsd-5-2-3-RELEASE, netbsd-5-2-2-RELEASE, netbsd-5-2-1-RELEASE, netbsd-5-2, netbsd-5-1-RELEASE, netbsd-5-1-RC4, netbsd-5-1-RC3, netbsd-5-1-RC2, netbsd-5-1-RC1, netbsd-5-1-5-RELEASE, netbsd-5-1-4-RELEASE, netbsd-5-1-3-RELEASE, netbsd-5-1-2-RELEASE, netbsd-5-1-1-RELEASE, netbsd-5-1, netbsd-5-0-RELEASE, netbsd-5-0-RC4, netbsd-5-0-2-RELEASE, netbsd-5-0-1-RELEASE, netbsd-5-0, matt-nb5-pq3-base, matt-nb5-pq3, matt-nb5-mips64-u2-k2-k4-k7-k8-k9, matt-nb5-mips64-u1-k1-k5, matt-nb5-mips64-premerge-20101231, matt-nb5-mips64-premerge-20091211, matt-nb5-mips64-k15, matt-nb5-mips64, matt-nb4-mips64-k7-u2a-k9b
Changes since 1.7: +6 -6 lines

Pull up following revision(s) (requested by apb in ticket #579):
	gnu/dist/texinfo/lib/system.h	1.11
	lib/libc/hash/hashhl.c		1.3
	lib/libc/md/mdXhl.c		1.8
	dist/file/src/file.h		1.18

Improve the ability to cross-build from Linux and OpenBSD hosts.

/*	$NetBSD: mdXhl.c,v 1.7.26.1 2009/03/27 16:28:42 msaitoh Exp $	*/

/*
 * ----------------------------------------------------------------------------
 * "THE BEER-WARE LICENSE" (Revision 42):
 * <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
 * can do whatever you want with this stuff. If we meet some day, and you think
 * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
 * ----------------------------------------------------------------------------
 *
 * from FreeBSD Id: mdXhl.c,v 1.8 1996/10/25 06:48:12 bde Exp
 */

/*
 * Modified April 29, 1997 by Jason R. Thorpe <thorpej@NetBSD.org>
 */

#if HAVE_NBTOOL_CONFIG_H
#include "nbtool_config.h"
#endif

#define	CONCAT(x,y)	__CONCAT(x,y)
#define	MDNAME(x)	CONCAT(MDALGORITHM,x)

#if !defined(_KERNEL) && defined(__weak_alias) && !defined(HAVE_NBTOOL_CONFIG_H)
#define	WA(a,b)	__weak_alias(a,b)
WA(MDNAME(End),CONCAT(_,MDNAME(End)))
WA(MDNAME(File),CONCAT(_,MDNAME(File)))
WA(MDNAME(Data),CONCAT(_,MDNAME(Data)))
#undef WA
#endif

#include "namespace.h"

#include <sys/types.h>

#include MDINCLUDE
#include <assert.h>
#include <fcntl.h>
#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>



char *
MDNAME(End)(ctx, buf)
	MDNAME(_CTX) *ctx;
	char *buf;
{
	int i;
	unsigned char digest[16];
	static const char hex[]="0123456789abcdef";

	_DIAGASSERT(ctx != 0);

	if (buf == NULL)
		buf = malloc(33);
	if (buf == NULL)
		return (NULL);

	MDNAME(Final)(digest, ctx);

	for (i = 0; i < 16; i++) {
		buf[i+i] = hex[(u_int32_t)digest[i] >> 4];
		buf[i+i+1] = hex[digest[i] & 0x0f];
	}

	buf[i+i] = '\0';
	return (buf);
}

char *
MDNAME(File)(filename, buf)
	const char *filename;
	char *buf;
{
	unsigned char buffer[BUFSIZ];
	MDNAME(_CTX) ctx;
	int f, i, j;

	_DIAGASSERT(filename != 0);
	/* buf may be NULL */

	MDNAME(Init)(&ctx);
	f = open(filename, O_RDONLY, 0666);
	if (f < 0)
		return NULL;

	while ((i = read(f, buffer, sizeof(buffer))) > 0)
		MDNAME(Update)(&ctx, buffer, (unsigned int)i);

	j = errno;
	close(f);
	errno = j;

	if (i < 0)
		return NULL;

	return (MDNAME(End)(&ctx, buf));
}

char *
MDNAME(Data)(data, len, buf)
	const unsigned char *data;
	unsigned int len;
	char *buf;
{
	MDNAME(_CTX) ctx;

	_DIAGASSERT(data != 0);

	MDNAME(Init)(&ctx);
	MDNAME(Update)(&ctx, data, len);
	return (MDNAME(End)(&ctx, buf));
}