lib/libmd/mdXhl.c

   1 /* mdXhl.c
   2  * ----------------------------------------------------------------------------
   3  * "THE BEER-WARE LICENSE" (Revision 42):
   4  * <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
   5  * can do whatever you want with this stuff. If we meet some day, and you think
   6  * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
   7  * ----------------------------------------------------------------------------
   8  *
   9  * $FreeBSD: src/lib/libmd/mdXhl.c,v 1.13 1999/08/28 00:05:07 peter Exp $
  10  * $DragonFly: src/lib/libmd/mdXhl.c,v 1.2 2003/06/17 04:26:50 dillon Exp $
  11  *
  12  */
  13
  14 #include <sys/types.h>
  15 #include <fcntl.h>
  16 #include <unistd.h>
  17
  18 #include <errno.h>
  19 #include <stdio.h>
  20 #include <stdlib.h>
  21
  22 #include "mdX.h"
  23
  24 char *
  25 MDXEnd(MDX_CTX *ctx, char *buf)
  26 {
  27     int i;
  28     unsigned char digest[LENGTH];
  29     static const char hex[]="0123456789abcdef";
  30
  31     if (!buf)
  32         buf = malloc(2*LENGTH + 1);
  33     if (!buf)
  34         return 0;
  35     MDXFinal(digest, ctx);
  36     for (i = 0; i < LENGTH; i++) {
  37         buf[i+i] = hex[digest[i] >> 4];
  38         buf[i+i+1] = hex[digest[i] & 0x0f];
  39     }
  40     buf[i+i] = '\0';
  41     return buf;
  42 }
  43
  44 char *
  45 MDXFile(const char *filename, char *buf)
  46 {
  47     unsigned char buffer[BUFSIZ];
  48     MDX_CTX ctx;
  49     int f,i,j;
  50
  51     MDXInit(&ctx);
  52     f = open(filename,O_RDONLY);
  53     if (f < 0) return 0;
  54     while ((i = read(f,buffer,sizeof buffer)) > 0) {
  55         MDXUpdate(&ctx,buffer,i);
  56     }
  57     j = errno;
  58     close(f);
  59     errno = j;
  60     if (i < 0) return 0;
  61     return MDXEnd(&ctx, buf);
  62 }
  63
  64 char *
  65 MDXData (const unsigned char *data, unsigned int len, char *buf)
  66 {
  67     MDX_CTX ctx;
  68
  69     MDXInit(&ctx);
  70     MDXUpdate(&ctx,data,len);
  71     return MDXEnd(&ctx, buf);
  72 }