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Use a common template for all the file checksum programs.

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This commit is contained in:
Stephen Heumann 2017-11-19 22:43:31 -06:00
parent 5c9b2f0877
commit df0de0d979
5 changed files with 73 additions and 114 deletions
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6
Makefile
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@ -51,17 +51,17 @@ aestest.a: aestest.c aes.h
aescrypt.a: aescrypt.c aes.h
$(CC) $(CFLAGS) -c $<
sha1sum.a: sha1sum.c sha1.h
sha1sum.a: sha1sum.c sha1.h cksumcommon.h
$(CC) $(CFLAGS) -c $<
sha1test.a: sha1test.c sha1.h
$(CC) $(CFLAGS) -c $<
sha256sum.a: sha256sum.c sha256.h
sha256sum.a: sha256sum.c sha256.h cksumcommon.h
$(CC) $(CFLAGS) -c $<
sha256test.a: sha256test.c sha256.h
$(CC) $(CFLAGS) -c $<
md5sum.a: md5sum.c md5.h
md5sum.a: md5sum.c md5.h cksumcommon.h
$(CC) $(CFLAGS) -c $<
md5test.a: md5test.c md5.h
$(CC) $(CFLAGS) -c $<

64
cksumcommon.h Normal file
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@ -0,0 +1,64 @@
/*
* Copyright (c) 2017 Stephen Heumann
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* This file is a template for computing file checksums with the various
* different hash functions from lib65816hash. This should be #included
* from another file after HASH_FUNCTION is defined to the name of the
* hash function to use and the corresponding header is included.
*/
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#define join(a,b) a##b
#define concat(a,b) join(a,b)
unsigned char buf[0x8000ul];
int main(int argc, char **argv) {
struct concat(HASH_FUNCTION,_context) ctx;
FILE *file;
size_t count;
int i;
srand(time(NULL));
if (argc != 2)
return EXIT_FAILURE;
file = fopen(argv[1], "rb");
if (file == NULL)
return EXIT_FAILURE;
concat(HASH_FUNCTION,_init)(&ctx);
do {
count = (rand() & 0x7FFF) + 1;
count = fread(buf, 1, count, file);
concat(HASH_FUNCTION,_update)(&ctx, buf, count);
} while (count != 0);
fclose(file);
concat(HASH_FUNCTION,_finalize)(&ctx);
for (i = 0; i < sizeof(ctx.hash); i++) {
printf("%02x", ctx.hash[i]);
}
printf("\n");
return 0;
}

39
md5sum.c
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@ -14,42 +14,7 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "md5.h"
#define HASH_FUNCTION md5
#include "cksumcommon.h"
unsigned char buf[0x8000ul];
int main(int argc, char **argv) {
struct md5_context ctx;
FILE *file;
size_t count;
int i;
srand(time(NULL));
if (argc != 2)
return EXIT_FAILURE;
file = fopen(argv[1], "rb");
if (file == NULL)
return EXIT_FAILURE;
md5_init(&ctx);
do {
count = (rand() & 0x7FFF) + 1;
count = fread(buf, 1, count, file);
md5_update(&ctx, buf, count);
} while (count != 0);
fclose(file);
md5_finalize(&ctx);
for (i = 0; i < 16; i++) {
printf("%02x", ctx.hash[i]);
}
printf("\n");
return 0;
}

39
sha1sum.c
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@ -14,42 +14,7 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "sha1.h"
#define HASH_FUNCTION sha1
#include "cksumcommon.h"
unsigned char buf[0x8000ul];
int main(int argc, char **argv) {
struct sha1_context ctx;
FILE *file;
size_t count;
int i;
srand(time(NULL));
if (argc != 2)
return EXIT_FAILURE;
file = fopen(argv[1], "rb");
if (file == NULL)
return EXIT_FAILURE;
sha1_init(&ctx);
do {
count = (rand() & 0x7FFF) + 1;
count = fread(buf, 1, count, file);
sha1_update(&ctx, buf, count);
} while (count != 0);
fclose(file);
sha1_finalize(&ctx);
for (i = 0; i < 20; i++) {
printf("%02x", ctx.hash[i]);
}
printf("\n");
return 0;
}

39
sha256sum.c
View File

@ -14,42 +14,7 @@
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <stdlib.h>
#include <stdio.h>
#include <time.h>
#include "sha256.h"
#define HASH_FUNCTION sha256
#include "cksumcommon.h"
unsigned char buf[0x8000ul];
int main(int argc, char **argv) {
struct sha256_context ctx;
FILE *file;
size_t count;
int i;
srand(time(NULL));
if (argc != 2)
return EXIT_FAILURE;
file = fopen(argv[1], "rb");
if (file == NULL)
return EXIT_FAILURE;
sha256_init(&ctx);
do {
count = (rand() & 0x7FFF) + 1;
count = fread(buf, 1, count, file);
sha256_update(&ctx, buf, count);
} while (count != 0);
fclose(file);
sha256_finalize(&ctx);
for (i = 0; i < 32; i++) {
printf("%02x", ctx.hash[i]);
}
printf("\n");
return 0;
}