1 /* 2 * Copyright (c) 2015 Dmitry V. Levin <ldv (at) altlinux.org> 3 * Copyright (c) 2015-2018 The strace developers. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 */ 28 29 #include <stdio.h> 30 #include <sys/personality.h> 31 32 #if XLAT_RAW 33 # define linux_type_str "0" 34 # define good_type_str "0x6" 35 # define bad_type_str "0x1f" 36 # define good_flags_str "0x7000000" 37 # define bad_flags_str "0x10000" 38 # define good_bad_flags_str "0x7010000" 39 #elif XLAT_VERBOSE 40 # define linux_type_str "0 /\\* PER_LINUX \\*/" 41 # define good_type_str "0x6 /\\* PER_BSD \\*/" 42 # define bad_type_str "0x1f /\\* PER_\\?\\?\\? \\*/" 43 # define good_flags_str \ 44 "0x7000000 /\\* SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS \\*/" 45 # define bad_flags_str "0x10000" 46 # define good_bad_flags_str \ 47 "0x7010000 /\\* SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS" \ 48 "\\|0x10000 \\*/" 49 #else 50 # define linux_type_str "PER_LINUX" 51 # define good_type_str "PER_BSD" 52 # define bad_type_str "0x1f /\\* PER_\\?\\?\\? \\*/" 53 # define good_flags_str "SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS" 54 # define bad_flags_str "0x10000" 55 # define good_bad_flags_str \ 56 "SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS\\|0x10000" 57 #endif 58 59 int main(void) 60 { 61 const unsigned int good_type = PER_BSD; 62 63 const unsigned int bad_type = 0x1f; 64 65 const unsigned int good_flags = 66 SHORT_INODE | WHOLE_SECONDS | STICKY_TIMEOUTS; 67 68 const unsigned int bad_flags = 0x10000; 69 70 const unsigned int saved_pers = personality(0xffffffff); 71 printf("personality\\(0xffffffff\\) = %#x \\([^)]*\\)\n", saved_pers); 72 73 /* PER_LINUX */ 74 personality(PER_LINUX); 75 printf("personality\\(%s\\) = %#x \\([^)]*\\)\n", 76 linux_type_str, saved_pers); 77 78 personality(0xffffffff); 79 printf("personality\\(0xffffffff\\) = 0 \\(%s\\)\n", linux_type_str); 80 81 personality(good_flags); 82 printf("personality\\(%s\\|%s\\) = 0 \\(%s\\)\n", 83 linux_type_str, good_flags_str, linux_type_str); 84 85 personality(bad_flags); 86 printf("personality\\(%s\\|%s\\)" 87 " = %#x \\(%s\\|%s\\)\n", 88 linux_type_str, bad_flags_str, 89 good_flags, linux_type_str, good_flags_str); 90 91 personality(good_flags | bad_flags); 92 printf("personality\\(%s\\|%s\\)" 93 " = %#x \\(%s\\|%s\\)\n", 94 linux_type_str, good_bad_flags_str, 95 bad_flags, linux_type_str, bad_flags_str); 96 97 /* another valid type */ 98 personality(good_type); 99 printf("personality\\(%s\\) = %#x \\(%s\\|%s\\)\n", 100 good_type_str, good_flags | bad_flags, 101 linux_type_str, good_bad_flags_str); 102 103 personality(good_type | good_flags); 104 printf("personality\\(%s\\|%s\\) = %#x \\(%s\\)\n", 105 good_type_str, good_flags_str, good_type, good_type_str); 106 107 personality(good_type | bad_flags); 108 printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n", 109 good_type_str, bad_flags_str, good_type | good_flags, 110 good_type_str, good_flags_str); 111 112 personality(good_type | good_flags | bad_flags); 113 printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n", 114 good_type_str, good_bad_flags_str, 115 good_type | bad_flags, 116 good_type_str, bad_flags_str); 117 118 /* invalid type */ 119 personality(bad_type); 120 printf("personality\\(%s\\) = %#x \\(%s\\|%s\\)\n", 121 bad_type_str, good_type | good_flags | bad_flags, 122 good_type_str, good_bad_flags_str); 123 124 personality(bad_type | good_flags); 125 printf("personality\\(%s\\|%s\\) = %#x \\(%s\\)\n", 126 bad_type_str, good_flags_str, bad_type, bad_type_str); 127 128 personality(bad_type | bad_flags); 129 printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n", 130 bad_type_str, bad_flags_str, bad_type | good_flags, 131 bad_type_str, good_flags_str); 132 133 personality(bad_type | good_flags | bad_flags); 134 printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n", 135 bad_type_str, good_bad_flags_str, 136 bad_type | bad_flags, bad_type_str, bad_flags_str); 137 138 personality(saved_pers); 139 printf("personality\\([^)]*\\) = %#x \\(%s\\|%s\\)\n", 140 bad_type | good_flags | bad_flags, 141 bad_type_str, good_bad_flags_str); 142 143 return 0; 144 } 145
