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/*
* This testing program makes sure the bitops functions work
*
* Copyright (C) 2001 by Theodore Ts'o.
*
* %Begin-Header%
* This file may be redistributed under the terms of the GNU Library
* General Public License, version 2.
* %End-Header%
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/types.h>
#if HAVE_ERRNO_H
#include <errno.h>
#endif
#include <sys/time.h>
#include <sys/resource.h>
#include "ext2_fs.h"
#include "ext2fs.h"
unsigned char bitarray[] = {
0x80, 0xF0, 0x40, 0x40, 0x0, 0x0, 0x0, 0x0, 0x10, 0x20, 0x00, 0x00
};
int bits_list[] = {
7, 12, 13, 14,15, 22, 30, 68, 77, -1,
};
#define BIG_TEST_BIT (((unsigned) 1 << 31) + 42)
int main(int argc, char **argv)
{
int i, j, size;
unsigned char testarray[12];
unsigned char *bigarray;
size = sizeof(bitarray)*8;
#if 0
i = ext2fs_find_first_bit_set(bitarray, size);
while (i < size) {
printf("Bit set: %d\n", i);
i = ext2fs_find_next_bit_set(bitarray, size, i+1);
}
#endif
/* Test test_bit */
for (i=0,j=0; i < size; i++) {
if (ext2fs_test_bit(i, bitarray)) {
if (bits_list[j] == i) {
j++;
} else {
printf("Bit %d set, not expected\n", i);
exit(1);
}
} else {
if (bits_list[j] == i) {
printf("Expected bit %d to be clear.\n", i);
exit(1);
}
}
}
printf("ext2fs_test_bit appears to be correct\n");
/* Test ext2fs_set_bit */
memset(testarray, 0, sizeof(testarray));
for (i=0; bits_list[i] > 0; i++) {
ext2fs_set_bit(bits_list[i], testarray);
}
if (memcmp(testarray, bitarray, sizeof(testarray)) == 0) {
printf("ext2fs_set_bit test succeeded.\n");
} else {
printf("ext2fs_set_bit test failed.\n");
for (i=0; i < sizeof(testarray); i++) {
printf("%02x ", testarray[i]);
}
printf("\n");
exit(1);
}
for (i=0; bits_list[i] > 0; i++) {
ext2fs_clear_bit(bits_list[i], testarray);
}
for (i=0; i < sizeof(testarray); i++) {
if (testarray[i]) {
printf("ext2fs_clear_bit failed, "
"testarray[%d] is %d\n", i, testarray[i]);
exit(1);
}
}
printf("ext2fs_clear_bit test succeed.\n");
/* Do bigarray test */
bigarray = malloc(1 << 29);
if (!bigarray) {
fprintf(stderr, "Failed to allocate scratch memory!\n");
exit(0);
}
bigarray[BIG_TEST_BIT >> 3] = 0;
ext2fs_set_bit(BIG_TEST_BIT, bigarray);
printf("big bit number (%u) test: %d, expected %d\n", BIG_TEST_BIT,
bigarray[BIG_TEST_BIT >> 3], (1 << (BIG_TEST_BIT & 7)));
if (bigarray[BIG_TEST_BIT >> 3] != (1 << (BIG_TEST_BIT & 7)))
exit(1);
ext2fs_clear_bit(BIG_TEST_BIT, bigarray);
printf("big bit number (%u) test: %d, expected 0\n", BIG_TEST_BIT,
bigarray[BIG_TEST_BIT >> 3]);
if (bigarray[BIG_TEST_BIT >> 3] != 0)
exit(1);
printf("ext2fs_set_bit big_test successful\n");
/* Now test ext2fs_fast_set_bit */
memset(testarray, 0, sizeof(testarray));
for (i=0; bits_list[i] > 0; i++) {
ext2fs_fast_set_bit(bits_list[i], testarray);
}
if (memcmp(testarray, bitarray, sizeof(testarray)) == 0) {
printf("ext2fs_fast_set_bit test succeeded.\n");
} else {
printf("ext2fs_fast_set_bit test failed.\n");
for (i=0; i < sizeof(testarray); i++) {
printf("%02x ", testarray[i]);
}
printf("\n");
exit(1);
}
for (i=0; bits_list[i] > 0; i++) {
ext2fs_clear_bit(bits_list[i], testarray);
}
for (i=0; i < sizeof(testarray); i++) {
if (testarray[i]) {
printf("ext2fs_clear_bit failed, "
"testarray[%d] is %d\n", i, testarray[i]);
exit(1);
}
}
printf("ext2fs_clear_bit test succeed.\n");
bigarray[BIG_TEST_BIT >> 3] = 0;
ext2fs_fast_set_bit(BIG_TEST_BIT, bigarray);
printf("big bit number (%u) test: %d, expected %d\n", BIG_TEST_BIT,
bigarray[BIG_TEST_BIT >> 3], (1 << (BIG_TEST_BIT & 7)));
if (bigarray[BIG_TEST_BIT >> 3] != (1 << (BIG_TEST_BIT & 7)))
exit(1);
ext2fs_fast_clear_bit(BIG_TEST_BIT, bigarray);
printf("big bit number (%u) test: %d, expected 0\n", BIG_TEST_BIT,
bigarray[BIG_TEST_BIT >> 3]);
if (bigarray[BIG_TEST_BIT >> 3] != 0)
exit(1);
printf("ext2fs_fast_set_bit big_test successful\n");
/* Repeat foregoing tests for 64-bit bitops */
/* Test test_bit */
for (i=0,j=0; i < size; i++) {
if (ext2fs_test_bit64(i, bitarray)) {
if (bits_list[j] == i) {
j++;
} else {
printf("64-bit: Bit %d set, not expected\n",
i);
exit(1);
}
} else {
if (bits_list[j] == i) {
printf("64-bit: "
"Expected bit %d to be clear.\n", i);
exit(1);
}
}
}
printf("64-bit: ext2fs_test_bit appears to be correct\n");
/* Test ext2fs_set_bit */
memset(testarray, 0, sizeof(testarray));
for (i=0; bits_list[i] > 0; i++) {
ext2fs_set_bit64(bits_list[i], testarray);
}
if (memcmp(testarray, bitarray, sizeof(testarray)) == 0) {
printf("64-bit: ext2fs_set_bit test succeeded.\n");
} else {
printf("64-bit: ext2fs_set_bit test failed.\n");
for (i=0; i < sizeof(testarray); i++) {
printf("%02x ", testarray[i]);
}
printf("\n");
exit(1);
}
for (i=0; bits_list[i] > 0; i++) {
ext2fs_clear_bit64(bits_list[i], testarray);
}
for (i=0; i < sizeof(testarray); i++) {
if (testarray[i]) {
printf("64-bit: ext2fs_clear_bit failed, "
"testarray[%d] is %d\n", i, testarray[i]);
exit(1);
}
}
printf("64-bit: ext2fs_clear_bit test succeed.\n");
/* Do bigarray test */
bigarray[BIG_TEST_BIT >> 3] = 0;
ext2fs_set_bit64(BIG_TEST_BIT, bigarray);
printf("64-bit: big bit number (%u) test: %d, expected %d\n",
BIG_TEST_BIT, bigarray[BIG_TEST_BIT >> 3],
(1 << (BIG_TEST_BIT & 7)));
if (bigarray[BIG_TEST_BIT >> 3] != (1 << (BIG_TEST_BIT & 7)))
exit(1);
ext2fs_clear_bit64(BIG_TEST_BIT, bigarray);
printf("64-bit: big bit number (%u) test: %d, expected 0\n",
BIG_TEST_BIT,
bigarray[BIG_TEST_BIT >> 3]);
if (bigarray[BIG_TEST_BIT >> 3] != 0)
exit(1);
printf("64-bit: ext2fs_set_bit big_test successful\n");
/* Now test ext2fs_fast_set_bit */
memset(testarray, 0, sizeof(testarray));
for (i=0; bits_list[i] > 0; i++) {
ext2fs_fast_set_bit64(bits_list[i], testarray);
}
if (memcmp(testarray, bitarray, sizeof(testarray)) == 0) {
printf("64-bit: ext2fs_fast_set_bit test succeeded.\n");
} else {
printf("64-bit: ext2fs_fast_set_bit test failed.\n");
for (i=0; i < sizeof(testarray); i++) {
printf("%02x ", testarray[i]);
}
printf("\n");
exit(1);
}
for (i=0; bits_list[i] > 0; i++) {
ext2fs_clear_bit64(bits_list[i], testarray);
}
for (i=0; i < sizeof(testarray); i++) {
if (testarray[i]) {
printf("64-bit: ext2fs_clear_bit failed, "
"testarray[%d] is %d\n", i, testarray[i]);
exit(1);
}
}
printf("64-bit: ext2fs_clear_bit test succeed.\n");
bigarray[BIG_TEST_BIT >> 3] = 0;
ext2fs_fast_set_bit64(BIG_TEST_BIT, bigarray);
printf("64-bit: big bit number (%u) test: %d, expected %d\n",
BIG_TEST_BIT, bigarray[BIG_TEST_BIT >> 3],
(1 << (BIG_TEST_BIT & 7)));
if (bigarray[BIG_TEST_BIT >> 3] != (1 << (BIG_TEST_BIT & 7)))
exit(1);
ext2fs_fast_clear_bit64(BIG_TEST_BIT, bigarray);
printf("64-bit: big bit number (%u) test: %d, expected 0\n",
BIG_TEST_BIT, bigarray[BIG_TEST_BIT >> 3]);
if (bigarray[BIG_TEST_BIT >> 3] != 0)
exit(1);
printf("64-bit: ext2fs_fast_set_bit big_test successful\n");
free(bigarray);
exit(0);
}
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