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 Library 8 * General Public License, version 2. 9 * %End-Header% 10 */ 11 12 #include "config.h" 13 #include <stdio.h> 14 #include <string.h> 15 #if HAVE_UNISTD_H 16 #include <unistd.h> 17 #endif 18 #include <fcntl.h> 19 #include <time.h> 20 #include <sys/stat.h> 21 #include <sys/types.h> 22 #if HAVE_ERRNO_H 23 #include <errno.h> 24 #endif 25 26 #include "ext2_fs.h" 27 #include "ext2fs.h" 28 29 __u16 test1[] = { 30 0x0001, 0x0100, 31 0x1234, 0x3412, 32 0xff00, 0x00ff, 33 0x4000, 0x0040, 34 0xfeff, 0xfffe, 35 0x0000, 0x0000 36 }; 37 38 __u32 test2[] = { 39 0x00000001, 0x01000000, 40 0x80000000, 0x00000080, 41 0x12345678, 0x78563412, 42 0xffff0000, 0x0000ffff, 43 0x00ff0000, 0x0000ff00, 44 0xff000000, 0x000000ff, 45 0x00000000, 0x00000000 46 }; 47 48 int main(int argc, char **argv) 49 { 50 int i; 51 int errors = 0; 52 53 printf("Testing ext2fs_swab16\n"); 54 i=0; 55 do { 56 printf("swab16(0x%04x) = 0x%04x\n", test1[i], 57 ext2fs_swab16(test1[i])); 58 if (ext2fs_swab16(test1[i]) != test1[i+1]) { 59 printf("Error!!! %04x != %04x\n", 60 ext2fs_swab16(test1[i]), test1[i+1]); 61 errors++; 62 } 63 if (ext2fs_swab16(test1[i+1]) != test1[i]) { 64 printf("Error!!! %04x != %04x\n", 65 ext2fs_swab16(test1[i+1]), test1[i]); 66 errors++; 67 } 68 i += 2; 69 } while (test1[i] != 0); 70 71 printf("Testing ext2fs_swab32\n"); 72 i = 0; 73 do { 74 printf("swab32(0x%08x) = 0x%08x\n", test2[i], 75 ext2fs_swab32(test2[i])); 76 if (ext2fs_swab32(test2[i]) != test2[i+1]) { 77 printf("Error!!! %04x != %04x\n", 78 ext2fs_swab32(test2[i]), test2[i+1]); 79 errors++; 80 } 81 if (ext2fs_swab32(test2[i+1]) != test2[i]) { 82 printf("Error!!! %04x != %04x\n", 83 ext2fs_swab32(test2[i+1]), test2[i]); 84 errors++; 85 } 86 i += 2; 87 } while (test2[i] != 0); 88 89 if (!errors) 90 printf("No errors found in the byteswap implementation!\n"); 91 92 return errors; 93 } 94
