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111 lines
3.0 KiB
111 lines
3.0 KiB
/* |
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* Test printpath/umovestr. |
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* |
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* Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org> |
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* Copyright (c) 2017-2018 The strace developers. |
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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 "tests.h" |
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#include <limits.h> |
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#include <stdio.h> |
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#include <string.h> |
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#include <unistd.h> |
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#include "test_ucopy.h" |
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static void |
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test_printpath_at(char *const p, const unsigned int test_max) |
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{ |
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/* |
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* / |
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* /. |
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* /.. |
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* /... |
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* /../. |
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* /../.. |
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* /../../ |
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*/ |
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char *const eop = p + (test_max - 1); |
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*eop = '\0'; |
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unsigned int i; |
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for (i = 1; i < test_max; ++i) { |
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const unsigned int i_1 = i - 1; |
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memmove(eop - i, eop - i_1, i_1); |
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eop[-1] = "/.."[i_1 % 3]; |
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if (chdir(eop - i)) |
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perror_msg_and_fail("chdir"); |
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printf("chdir(\"%s\") = 0\n", eop - i); |
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} |
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} |
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static void |
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test_efault(const unsigned int test_max) |
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{ |
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char *p = tail_alloc(test_max); |
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const char *const efault = p + test_max; |
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memset(p, '/', test_max); |
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for (; p <= efault; ++p) { |
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if (p <= efault - PATH_MAX) |
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continue; |
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printf("chdir(%p) = %s\n", p, sprintrc(chdir(p))); |
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} |
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} |
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static void |
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test_enametoolong(void) |
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{ |
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char *p = tail_alloc(PATH_MAX); |
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memset(p, '/', PATH_MAX); |
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printf("chdir(\"%.*s\"...) = %s\n", |
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PATH_MAX - 1, p, sprintrc(chdir(p))); |
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} |
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void |
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test_printpath(const unsigned int test_max) |
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{ |
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/* |
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* /../..| |
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* /../.|. |
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* /../|.. |
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* /..|/.. |
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* /.|./.. |
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* /|../.. |
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* |/../.. |
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*/ |
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const unsigned int page_size = get_page_size(); |
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char *p = tail_alloc(test_max + page_size); |
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unsigned int i; |
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for (i = 1; i < sizeof(long); ++i) |
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test_printpath_at(p + i, test_max); |
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for (i = 0; i < sizeof(long); ++i) |
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test_printpath_at(p + page_size - i, test_max); |
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test_efault(test_max); |
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test_enametoolong(); |
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}
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