101 lines
2.0 KiB
C
101 lines
2.0 KiB
C
/* $NetBSD: mdXhl.c,v 1.5 1999/09/20 04:39:10 lukem Exp $ */
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/*
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* ----------------------------------------------------------------------------
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* "THE BEER-WARE LICENSE" (Revision 42):
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* <phk@login.dkuug.dk> wrote this file. As long as you retain this notice you
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* can do whatever you want with this stuff. If we meet some day, and you think
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* this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
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* ----------------------------------------------------------------------------
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*
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* from FreeBSD Id: mdXhl.c,v 1.8 1996/10/25 06:48:12 bde Exp
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*/
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/*
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* Modifed April 29, 1997 by Jason R. Thorpe <thorpej@netbsd.org>
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*/
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#include <sys/types.h>
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#include <assert.h>
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#include <fcntl.h>
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#include <errno.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <unistd.h>
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#define CONCAT(x,y) __CONCAT(x,y)
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#define MDNAME(x) CONCAT(MDALGORITHM,x)
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char *
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MDNAME(End)(ctx, buf)
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MDNAME(_CTX) *ctx;
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char *buf;
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{
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int i;
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unsigned char digest[16];
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static const char hex[]="0123456789abcdef";
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_DIAGASSERT(ctx != 0);
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if (buf == NULL)
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buf = malloc(33);
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if (buf == NULL)
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return (NULL);
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MDNAME(Final)(digest, ctx);
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for (i = 0; i < 16; i++) {
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buf[i+i] = hex[(u_int32_t)digest[i] >> 4];
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buf[i+i+1] = hex[digest[i] & 0x0f];
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}
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buf[i+i] = '\0';
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return (buf);
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}
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char *
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MDNAME(File)(filename, buf)
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const char *filename;
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char *buf;
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{
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unsigned char buffer[BUFSIZ];
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MDNAME(_CTX) ctx;
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int f, i, j;
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_DIAGASSERT(filename != 0);
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/* buf may be NULL */
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MDNAME(Init)(&ctx);
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f = open(filename, O_RDONLY, 0666);
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if (f < 0)
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return NULL;
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while ((i = read(f, buffer, sizeof(buffer))) > 0)
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MDNAME(Update)(&ctx, buffer, (unsigned int)i);
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j = errno;
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close(f);
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errno = j;
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if (i < 0)
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return NULL;
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return (MDNAME(End)(&ctx, buf));
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}
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char *
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MDNAME(Data)(data, len, buf)
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const unsigned char *data;
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unsigned int len;
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char *buf;
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{
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MDNAME(_CTX) ctx;
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_DIAGASSERT(data != 0);
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MDNAME(Init)(&ctx);
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MDNAME(Update)(&ctx, data, len);
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return (MDNAME(End)(&ctx, buf));
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}
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