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1 /*
2  * This testing program makes sure the byteswap functions work
3  *
4  * Copyright (C) 2000 by Theodore Ts'o.
5  *
6  * %Begin-Header%
7  * This file may be redistributed under the terms of the GNU Public
8  * License.
9  * %End-Header%
10  */
11 
12 #include <stdio.h>
13 #include <string.h>
14 #if HAVE_UNISTD_H
15 #include <unistd.h>
16 #endif
17 #include <fcntl.h>
18 #include <time.h>
19 #include <sys/stat.h>
20 #include <sys/types.h>
21 #if HAVE_ERRNO_H
22 #include <errno.h>
23 #endif
24 
25 #include "ext2_fs.h"
26 #include "ext2fs.h"
27 
28 __u16 test1[] = {
29 	0x0001, 0x0100,
30 	0x1234, 0x3412,
31 	0xff00, 0x00ff,
32 	0x4000, 0x0040,
33 	0xfeff, 0xfffe,
34 	0x0000, 0x0000
35 	};
36 
37 __u32 test2[] = {
38 	0x00000001, 0x01000000,
39 	0x80000000, 0x00000080,
40 	0x12345678, 0x78563412,
41 	0xffff0000, 0x0000ffff,
42 	0x00ff0000, 0x0000ff00,
43 	0xff000000, 0x000000ff,
44 	0x00000000, 0x00000000
45 	};
46 
main(int argc,char ** argv)47 int main(int argc, char **argv)
48 {
49 	int	i;
50 	int	errors = 0;
51 
52 	printf("Testing ext2fs_swab16\n");
53 	i=0;
54 	do {
55 		printf("swab16(0x%04x) = 0x%04x\n", test1[i],
56 		       ext2fs_swab16(test1[i]));
57 		if (ext2fs_swab16(test1[i]) != test1[i+1]) {
58 			printf("Error!!!   %04x != %04x\n",
59 			       ext2fs_swab16(test1[i]), test1[i+1]);
60 			errors++;
61 		}
62 		if (ext2fs_swab16(test1[i+1]) != test1[i]) {
63 			printf("Error!!!   %04x != %04x\n",
64 			       ext2fs_swab16(test1[i+1]), test1[i]);
65 			errors++;
66 		}
67 		i += 2;
68 	} while (test1[i] != 0);
69 
70 	printf("Testing ext2fs_swab32\n");
71 	i = 0;
72 	do {
73 		printf("swab32(0x%08x) = 0x%08x\n", test2[i],
74 		       ext2fs_swab32(test2[i]));
75 		if (ext2fs_swab32(test2[i]) != test2[i+1]) {
76 			printf("Error!!!   %04x != %04x\n",
77 			       ext2fs_swab32(test2[i]), test2[i+1]);
78 			errors++;
79 		}
80 		if (ext2fs_swab32(test2[i+1]) != test2[i]) {
81 			printf("Error!!!   %04x != %04x\n",
82 			       ext2fs_swab32(test2[i+1]), test2[i]);
83 			errors++;
84 		}
85 		i += 2;
86 	} while (test2[i] != 0);
87 
88 	if (!errors)
89 		printf("No errors found in the byteswap implementation!\n");
90 
91 	return errors;
92 }
93