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/*
* Copyright 2010 Red Hat Inc., Durham, North Carolina.
* All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Authors:
* "Daniel Kopecek" <dkopecek@redhat.com>
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdio.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <crapi/crapi.h>
#include <crapi/digest.h>
static int mem2hex (uint8_t *mem, size_t mlen, char *str, size_t slen)
{
const char ch[] = "0123456789abcdef";
register size_t i;
if (slen < (mlen * 2) + 1) {
errno = ENOBUFS;
return (-1);
}
for (i = 0; i < mlen; ++i) {
str[i*2 ] = ch[(mem[i] & 0xf0) >> 4];
str[i*2+1] = ch[(mem[i] & 0x0f)];
}
str[i*2] = '\0';
return (0);
}
int main (int argc, char *argv[])
{
uint8_t md5_dst[16];
size_t md5_dstlen = sizeof md5_dst;
uint8_t sha1_dst[20];
size_t sha1_dstlen = sizeof sha1_dst;
uint8_t sha256_dst[32];
size_t sha256_dstlen = sizeof sha256_dst;
char *orig_md5sum, comp_md5sum[(sizeof md5_dst * 2) + 1];
char *orig_sha1sum, comp_sha1sum[(sizeof sha1_dst * 2) + 1];
char *orig_sha256sum, comp_sha256sum[(sizeof sha256_dst * 2) + 1];
char *filename;
int fd;
if (argc != 5) {
fprintf (stderr, "Usage: %s <file> <md5sum> <sha1sum> <sha256sum>\n", argv[0]);
return (1);
}
filename = argv[1];
orig_md5sum = argv[2];
orig_sha1sum = argv[3];
orig_sha256sum = argv[4];
if (crapi_init (NULL) != 0) {
fprintf (stderr, "crapi_init() != 0\n");
abort ();
}
fd = open (filename, O_RDONLY);
if (fd < 0) {
perror ("open");
return (2);
}
if (crapi_digest_fd (fd, CRAPI_DIGEST_MD5, &md5_dst, &md5_dstlen) != 0) {
fprintf (stderr, "crapi_digest() != 0\n");
abort ();
}
mem2hex (md5_dst, md5_dstlen, comp_md5sum, sizeof comp_md5sum);
if (strcmp (orig_md5sum, comp_md5sum) != 0) {
fprintf (stderr, "crapi_digest::MD5(%s) != %s (== %s)\n", filename, orig_md5sum, comp_md5sum);
abort ();
}
if (lseek (fd, 0, SEEK_SET) == (off_t)-1) {
perror ("lseek");
return (2);
}
if (crapi_digest_fd (fd, CRAPI_DIGEST_SHA1, &sha1_dst, &sha1_dstlen) != 0) {
fprintf (stderr, "crapi_digest() != 0\n");
abort ();
}
mem2hex (sha1_dst, sha1_dstlen, comp_sha1sum, sizeof comp_sha1sum);
if (strcmp (orig_sha1sum, comp_sha1sum) != 0) {
fprintf (stderr, "crapi_digest::SHA1(%s) != %s (== %s)\n", filename, orig_sha1sum, comp_sha1sum);
abort ();
}
if (lseek (fd, 0, SEEK_SET) == (off_t)-1) {
perror ("lseek");
return (2);
}
if (crapi_digest_fd (fd, CRAPI_DIGEST_SHA256, &sha256_dst, &sha256_dstlen) != 0) {
fprintf (stderr, "crapi_digest() != 0\n");
abort ();
}
mem2hex (sha256_dst, sha256_dstlen, comp_sha256sum, sizeof comp_sha256sum);
if (strcmp (orig_sha256sum, comp_sha256sum) != 0) {
fprintf (stderr, "crapi_digest::SHA256(%s) != %s (== %s)\n", filename, orig_sha256sum, comp_sha256sum);
abort ();
}
close (fd);
return (0);
}
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