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/*
* lib/crypto/crc32/crctest.c
*
* Copyright 1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America may
* require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* CRC test driver program.
*/
#include "k5-int.h"
#include "crc-32.h"
#include <stdio.h>
void
main()
{
unsigned char ckout[4];
krb5_checksum outck;
char input[16], expected_crc[16];
unsigned char inbytes[4], outbytes[4];
int in_length;
unsigned long expect;
int bad = 0;
outck.length = sizeof(ckout);
outck.contents = ckout;
while (scanf("%s %s", input, expected_crc) == 2) {
in_length = strlen(input);
if (in_length % 2) {
fprintf(stderr, "bad input '%s', not hex data\n", input);
exit(1);
}
in_length = in_length / 2;
if (strlen(expected_crc) != 8) {
fprintf(stderr, "bad expectation '%s', not 8 chars\n",
expected_crc);
exit(1);
}
if (sscanf(expected_crc, "%lx", &expect) != 1) {
fprintf(stderr, "bad expectation '%s', not 4bytes hex\n",
expected_crc);
exit(1);
}
outbytes[0] = (unsigned char) (expect & 0xff);
outbytes[1] = (unsigned char) ((expect >> 8) & 0xff);
outbytes[2] = (unsigned char) ((expect >> 16) & 0xff);
outbytes[3] = (unsigned char) ((expect >> 24) & 0xff);
if (sscanf(input, "%lx", &expect) != 1) {
fprintf(stderr, "bad expectation '%s', not hex\n",
expected_crc);
exit(1);
}
inbytes[0] = (unsigned char) (expect & 0xff);
inbytes[1] = (unsigned char) ((expect >> 8) & 0xff);
inbytes[2] = (unsigned char) ((expect >> 16) & 0xff);
inbytes[3] = (unsigned char) ((expect >> 24) & 0xff);
(*crc32_cksumtable_entry.sum_func)((krb5_pointer)inbytes,
in_length, 0, 0, &outck);
if (memcmp(outbytes, ckout, 4)) {
printf("mismatch: input '%s', output '%02x%02x%02x%02x', \
expected '%s'\n",
input, ckout[3], ckout[2], ckout[1], ckout[0],
expected_crc);
bad = 1;
}
}
if (bad)
printf("crctest: failed to pass the test\n");
else
printf("crctest: test is passed successfully\n");
exit(bad);
}
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