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72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/* mdXhl.c
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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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* $Id: mdXhl.c,v 1.11 1997/08/25 05:24:25 joerg Exp $
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*
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*/
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.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 "mdX.h"
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char *
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MDXEnd(MDX_CTX *ctx, char *buf)
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{
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int i;
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unsigned char digest[LENGTH];
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static const char hex[]="0123456789abcdef";
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if (!buf)
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buf = malloc(2*LENGTH + 1);
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if (!buf)
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return 0;
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MDXFinal(digest, ctx);
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for (i = 0; i < LENGTH; i++) {
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buf[i+i] = hex[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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MDXFile(const char *filename, char *buf)
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{
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unsigned char buffer[BUFSIZ];
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MDX_CTX ctx;
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int f,i,j;
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MDXInit(&ctx);
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f = open(filename,O_RDONLY);
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if (f < 0) return 0;
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while ((i = read(f,buffer,sizeof buffer)) > 0) {
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MDXUpdate(&ctx,buffer,i);
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}
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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) return 0;
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return MDXEnd(&ctx, buf);
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}
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char *
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MDXData (const unsigned char *data, unsigned int len, char *buf)
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{
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MDX_CTX ctx;
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MDXInit(&ctx);
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MDXUpdate(&ctx,data,len);
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return MDXEnd(&ctx, buf);
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}
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