/* md5hl.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 * ---------------------------------------------------------------------------- * * $Id: md5hl.c,v 1.8.2.1 1998/02/18 02:24:05 jkh Exp $ * */#include <sys/types.h>#include <fcntl.h>#include <unistd.h>#include <errno.h>#include <stdio.h>#include <stdlib.h>#include "md5.h"char *MD5End(MD5_CTX *ctx, char *buf){    int i;    unsigned char digest[16];    static const char hex[]="0123456789abcdef";    if (!buf)        buf = malloc(33);    if (!buf)	return 0;    MD5Final(digest,ctx);    for (i=0;i<16;i++) {	buf[i+i] = hex[digest[i] >> 4];	buf[i+i+1] = hex[digest[i] & 0x0f];    }    buf[i+i] = '\0';    return buf;}char *MD5File (const char *filename, char *buf){    unsigned char buffer[BUFSIZ];    MD5_CTX ctx;    int f,i,j;    MD5Init(&ctx);    f = open(filename,O_RDONLY);    if (f < 0) return 0;    while ((i = read(f,buffer,sizeof buffer)) > 0) {	MD5Update(&ctx,buffer,i);    }    j = errno;    close(f);    errno = j;    if (i < 0) return 0;    return MD5End(&ctx, buf);}char *MD5Data (const unsigned char *data, unsigned int len, char *buf){    MD5_CTX ctx;    MD5Init(&ctx);    MD5Update(&ctx,data,len);    return MD5End(&ctx, buf);}