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Viewing changes to lib/ext2fs/tst_byteswap.c

  • Committer: Bazaar Package Importer
  • Author(s): Yann Dirson
  • Date: 2002-03-21 23:58:48 UTC
  • Revision ID: james.westby@ubuntu.com-20020321235848-cmmy98hy0nihp922
Tags: upstream-1.27
Import upstream version 1.27

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lib/ext2fs/tst_byteswap.c
 
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/*
 
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 * This testing program makes sure the byteswap functions work
 
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 *
 
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 * Copyright (C) 2000 by Theodore Ts'o.
 
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 * 
 
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 * %Begin-Header%
 
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 * This file may be redistributed under the terms of the GNU Public
 
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 * License.
 
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 * %End-Header%
 
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 */
 
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#include <stdio.h>
 
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#include <string.h>
 
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#if HAVE_UNISTD_H
 
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#include <unistd.h>
 
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#endif
 
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#include <fcntl.h>
 
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#include <time.h>
 
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#include <sys/stat.h>
 
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#include <sys/types.h>
 
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#if HAVE_ERRNO_H
 
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#include <errno.h>
 
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#endif
 
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#include "ext2_fs.h"
 
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#include "ext2fs.h"
 
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__u16 test1[] = {
 
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        0x0001, 0x0100,
 
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        0x1234, 0x3412,
 
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        0xff00, 0x00ff,
 
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        0x4000, 0x0040,
 
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        0xfeff, 0xfffe,
 
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        0x0000, 0x0000
 
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        };
 
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__u32 test2[] = {
 
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        0x00000001, 0x01000000,
 
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        0x80000000, 0x00000080,
 
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        0x12345678, 0x78563412,
 
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        0xffff0000, 0x0000ffff,
 
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        0x00ff0000, 0x0000ff00,
 
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        0xff000000, 0x000000ff,
 
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        0x00000000, 0x00000000
 
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        };
 
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int main(int argc, char **argv)
 
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{
 
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        int     i;
 
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        int     errors = 0;
 
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        printf("Testing ext2fs_swab16\n");
 
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        i=0;
 
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        do {
 
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                printf("swab16(0x%04x) = 0x%04x\n", test1[i],
 
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                       ext2fs_swab16(test1[i]));
 
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                if (ext2fs_swab16(test1[i]) != test1[i+1]) {
 
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                        printf("Error!!!   %04x != %04x\n",
 
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                               ext2fs_swab16(test1[i]), test1[i+1]);
 
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                        errors++;
 
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                }
 
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                if (ext2fs_swab16(test1[i+1]) != test1[i]) {
 
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                        printf("Error!!!   %04x != %04x\n",
 
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                               ext2fs_swab16(test1[i+1]), test1[i]);
 
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                        errors++;
 
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                }
 
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                i += 2;
 
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        } while (test1[i] != 0);
 
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        printf("Testing ext2fs_swab32\n");
 
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        i = 0;
 
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        do {
 
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                printf("swab32(0x%08x) = 0x%08x\n", test2[i],
 
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                       ext2fs_swab32(test2[i]));
 
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                if (ext2fs_swab32(test2[i]) != test2[i+1]) {
 
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                        printf("Error!!!   %04x != %04x\n",
 
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                               ext2fs_swab32(test2[i]), test2[i+1]);
 
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                        errors++;
 
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                }
 
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                if (ext2fs_swab32(test2[i+1]) != test2[i]) {
 
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                        printf("Error!!!   %04x != %04x\n",
 
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                               ext2fs_swab32(test2[i+1]), test2[i]);
 
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                        errors++;
 
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                }
 
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                i += 2;
 
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        } while (test2[i] != 0);
 
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        if (!errors)
 
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                printf("No errors found in the byteswap implementation!\n");
 
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        return errors;
 
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}