granicus.if.org Git - strace/blob - tests/personality.c

   1 /*
   2  * Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
   3  * Copyright (c) 2015-2018 The strace developers.
   4  * All rights reserved.
   5  *
   6  * SPDX-License-Identifier: GPL-2.0-or-later
   7  */
   8
   9 #include <stdio.h>
  10 #include <sys/personality.h>
  11
  12 #if XLAT_RAW
  13 # define linux_type_str "0"
  14 # define good_type_str  "0x6"
  15 # define bad_type_str   "0x1f"
  16 # define good_flags_str "0x7000000"
  17 # define bad_flags_str  "0x10000"
  18 # define good_bad_flags_str     "0x7010000"
  19 #elif XLAT_VERBOSE
  20 # define linux_type_str "0 /\\* PER_LINUX \\*/"
  21 # define good_type_str  "0x6 /\\* PER_BSD \\*/"
  22 # define bad_type_str   "0x1f /\\* PER_\\?\\?\\? \\*/"
  23 # define good_flags_str \
  24         "0x7000000 /\\* SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS \\*/"
  25 # define bad_flags_str  "0x10000"
  26 # define good_bad_flags_str     \
  27         "0x7010000 /\\* SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS" \
  28                 "\\|0x10000 \\*/"
  29 #else
  30 # define linux_type_str "PER_LINUX"
  31 # define good_type_str  "PER_BSD"
  32 # define bad_type_str   "0x1f /\\* PER_\\?\\?\\? \\*/"
  33 # define good_flags_str "SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS"
  34 # define bad_flags_str  "0x10000"
  35 # define good_bad_flags_str \
  36         "SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS\\|0x10000"
  37 #endif
  38
  39 int main(void)
  40 {
  41         const unsigned int good_type = PER_BSD;
  42
  43         const unsigned int bad_type = 0x1f;
  44
  45         const unsigned int good_flags =
  46                 SHORT_INODE | WHOLE_SECONDS | STICKY_TIMEOUTS;
  47
  48         const unsigned int bad_flags = 0x10000;
  49
  50         const unsigned int saved_pers = personality(0xffffffff);
  51         printf("personality\\(0xffffffff\\) = %#x \\([^)]*\\)\n", saved_pers);
  52
  53         /* PER_LINUX */
  54         personality(PER_LINUX);
  55         printf("personality\\(%s\\) = %#x \\([^)]*\\)\n",
  56                linux_type_str, saved_pers);
  57
  58         personality(0xffffffff);
  59         printf("personality\\(0xffffffff\\) = 0 \\(%s\\)\n", linux_type_str);
  60
  61         personality(good_flags);
  62         printf("personality\\(%s\\|%s\\) = 0 \\(%s\\)\n",
  63                linux_type_str, good_flags_str, linux_type_str);
  64
  65         personality(bad_flags);
  66         printf("personality\\(%s\\|%s\\)"
  67                " = %#x \\(%s\\|%s\\)\n",
  68                linux_type_str, bad_flags_str,
  69                good_flags, linux_type_str, good_flags_str);
  70
  71         personality(good_flags | bad_flags);
  72         printf("personality\\(%s\\|%s\\)"
  73                " = %#x \\(%s\\|%s\\)\n",
  74                linux_type_str, good_bad_flags_str,
  75                bad_flags, linux_type_str, bad_flags_str);
  76
  77         /* another valid type */
  78         personality(good_type);
  79         printf("personality\\(%s\\) = %#x \\(%s\\|%s\\)\n",
  80                good_type_str, good_flags | bad_flags,
  81                linux_type_str, good_bad_flags_str);
  82
  83         personality(good_type | good_flags);
  84         printf("personality\\(%s\\|%s\\) = %#x \\(%s\\)\n",
  85                good_type_str, good_flags_str, good_type, good_type_str);
  86
  87         personality(good_type | bad_flags);
  88         printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n",
  89                good_type_str, bad_flags_str, good_type | good_flags,
  90                good_type_str, good_flags_str);
  91
  92         personality(good_type | good_flags | bad_flags);
  93         printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n",
  94                good_type_str, good_bad_flags_str,
  95                good_type | bad_flags,
  96                good_type_str, bad_flags_str);
  97
  98         /* invalid type */
  99         personality(bad_type);
 100         printf("personality\\(%s\\) = %#x \\(%s\\|%s\\)\n",
 101                bad_type_str, good_type | good_flags | bad_flags,
 102                good_type_str, good_bad_flags_str);
 103
 104         personality(bad_type | good_flags);
 105         printf("personality\\(%s\\|%s\\) = %#x \\(%s\\)\n",
 106                bad_type_str, good_flags_str, bad_type, bad_type_str);
 107
 108         personality(bad_type | bad_flags);
 109         printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n",
 110                bad_type_str, bad_flags_str, bad_type | good_flags,
 111                bad_type_str, good_flags_str);
 112
 113         personality(bad_type | good_flags | bad_flags);
 114         printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n",
 115                bad_type_str, good_bad_flags_str,
 116                bad_type | bad_flags, bad_type_str, bad_flags_str);
 117
 118         personality(saved_pers);
 119         printf("personality\\([^)]*\\) = %#x \\(%s\\|%s\\)\n",
 120                bad_type | good_flags | bad_flags,
 121                bad_type_str, good_bad_flags_str);
 122
 123         return 0;
 124 }