119 lines
4.5 KiB
C
119 lines
4.5 KiB
C
/*
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* Copyright (c) 2015 Dmitry V. Levin <ldv@altlinux.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <stdio.h>
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#include <sys/personality.h>
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int main(void)
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{
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const unsigned int good_type = PER_BSD;
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const char *good_type_str = "PER_BSD";
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const unsigned int bad_type = 0x1f;
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const char *bad_type_str = "0x1f /\\* PER_\\?\\?\\? \\*/";
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const unsigned int good_flags =
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SHORT_INODE | WHOLE_SECONDS | STICKY_TIMEOUTS;
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const char *good_flags_str =
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"SHORT_INODE\\|WHOLE_SECONDS\\|STICKY_TIMEOUTS";
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const unsigned int bad_flags = 0x10000;
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const char *bad_flags_str = "0x10000";
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const unsigned int saved_pers = personality(0xffffffff);
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printf("personality\\(0xffffffff\\) = %#x \\([^)]*\\)\n", saved_pers);
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/* PER_LINUX */
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personality(PER_LINUX);
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printf("personality\\(PER_LINUX\\) = %#x \\([^)]*\\)\n", saved_pers);
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personality(0xffffffff);
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puts("personality\\(0xffffffff\\) = 0 \\(PER_LINUX\\)");
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personality(good_flags);
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printf("personality\\(PER_LINUX\\|%s\\) = 0 \\(PER_LINUX\\)\n",
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good_flags_str);
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personality(bad_flags);
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printf("personality\\(PER_LINUX\\|%s\\)"
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" = %#x \\(PER_LINUX\\|%s\\)\n",
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bad_flags_str, good_flags, good_flags_str);
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personality(good_flags | bad_flags);
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printf("personality\\(PER_LINUX\\|%s\\|%s\\)"
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" = %#x \\(PER_LINUX\\|%s\\)\n",
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good_flags_str, bad_flags_str, bad_flags, bad_flags_str);
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/* another valid type */
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personality(good_type);
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printf("personality\\(%s\\) = %#x \\(PER_LINUX\\|%s\\|%s\\)\n",
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good_type_str, good_flags | bad_flags,
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good_flags_str, bad_flags_str);
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personality(good_type | good_flags);
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printf("personality\\(%s\\|%s\\) = %#x \\(%s\\)\n",
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good_type_str, good_flags_str, good_type, good_type_str);
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personality(good_type | bad_flags);
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printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n",
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good_type_str, bad_flags_str, good_type | good_flags,
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good_type_str, good_flags_str);
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personality(good_type | good_flags | bad_flags);
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printf("personality\\(%s\\|%s\\|%s\\) = %#x \\(%s\\|%s\\)\n",
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good_type_str, good_flags_str, bad_flags_str,
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good_type | bad_flags,
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good_type_str, bad_flags_str);
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/* invalid type */
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personality(bad_type);
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printf("personality\\(%s\\) = %#x \\(%s\\|%s\\|%s\\)\n",
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bad_type_str, good_type | good_flags | bad_flags,
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good_type_str, good_flags_str, bad_flags_str);
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personality(bad_type | good_flags);
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printf("personality\\(%s\\|%s\\) = %#x \\(%s\\)\n",
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bad_type_str, good_flags_str, bad_type, bad_type_str);
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personality(bad_type | bad_flags);
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printf("personality\\(%s\\|%s\\) = %#x \\(%s\\|%s\\)\n",
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bad_type_str, bad_flags_str, bad_type | good_flags,
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bad_type_str, good_flags_str);
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personality(bad_type | good_flags | bad_flags);
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printf("personality\\(%s\\|%s\\|%s\\) = %#x \\(%s\\|%s\\)\n",
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bad_type_str, good_flags_str, bad_flags_str,
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bad_type | bad_flags, bad_type_str, bad_flags_str);
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personality(saved_pers);
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printf("personality\\([^)]*\\) = %#x \\(%s\\|%s\\|%s\\)\n",
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bad_type | good_flags | bad_flags,
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bad_type_str, good_flags_str, bad_flags_str);
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return 0;
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}
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