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freebsd/lib/libmd/mdXhl.c
Poul-Henning Kamp c9502b535e Reviewed by: phk
Imported libmd.  This library contains MD2, MD4 and MD5.
These three boggers pop up all over the place all of the time, so I 
decided we needed a library with them.  In general they are used for
security checks, so if you use them you want to link them static.
1994-07-24 03:29:56 +00:00

69 lines
1.4 KiB
C

/* mdXhl.c
/*
* ----------------------------------------------------------------------------
* "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
* ----------------------------------------------------------------------------
*
* $FreeBSD$
*
*/
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include "mdX.h"
#include <sys/file.h>
char *
MDXEnd(MDX_CTX *ctx)
{
int i;
char *p = malloc(33);
unsigned char digest[16];
char hex[]="0123456789abcdef";
if(!p) return 0;
MDXFinal(digest,ctx);
for(i=0;i<16;i++) {
p[i+i] = hex[digest[i] >> 4];
p[i+i+1] = hex[digest[i] & 0x0f];
}
p[i+i] = '\0';
return p;
}
char *
MDXFile (char *filename)
{
unsigned char digest[16],buffer[BUFSIZ];
MDX_CTX ctx;
char *p;
int f,i,j;
MDXInit(&ctx);
f = open(filename,O_RDONLY);
if(f < 0) return 0;
while((i = read(f,buffer,sizeof buffer)) > 0) {
MDXUpdate(&ctx,buffer,i);
}
j = errno;
close(f);
errno = j;
if(i < 0) return 0;
return MDXEnd(&ctx);
}
char *
MDXData (unsigned char *data, unsigned int len)
{
unsigned char digest[16];
MDX_CTX ctx;
MDXInit(&ctx);
MDXUpdate(&ctx,data,len);
return MDXEnd(&ctx);
}