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 <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 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
