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author | Dmitry V. Levin <ldv@altlinux.org> | 2017-08-01 20:59:48 +0000 |
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committer | Dmitry V. Levin <ldv@altlinux.org> | 2017-08-01 20:59:48 +0000 |
commit | 7a9eea94ee1f18fa81ad4875b5b462c96b615251 (patch) | |
tree | ce31818a6acbafcbe673caa76e7194413a998278 /tests/test_printpath.c | |
parent | 4f03dc3fc667ea221b96e7324235504190f22a12 (diff) | |
download | strace-7a9eea94ee1f18fa81ad4875b5b462c96b615251.tar.gz |
tests: add test_printpath function to libtests
* tests/test_ucopy.h (test_printpath): New prototype.
* tests/test_printpath.c: New file.
* tests/Makefile.am (libtests_a_SOURCES): Add it.
Diffstat (limited to 'tests/test_printpath.c')
-rw-r--r-- | tests/test_printpath.c | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/tests/test_printpath.c b/tests/test_printpath.c new file mode 100644 index 000000000..5f482f25e --- /dev/null +++ b/tests/test_printpath.c @@ -0,0 +1,110 @@ +/* + * Test printpath/umovestr. + * + * Copyright (c) 2015-2017 Dmitry V. Levin <ldv@altlinux.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include "tests.h" + +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <sys/param.h> + +#include "test_ucopy.h" + +static void +test_printpath_at(char *const p, const unsigned int test_max) +{ + /* + * / + * /. + * /.. + * /... + * /../. + * /../.. + * /../../ + */ + + char *const eop = p + (test_max - 1); + *eop = '\0'; + unsigned int i; + for (i = 1; i < test_max; ++i) { + const unsigned int i_1 = i - 1; + memmove(eop - i, eop - i_1, i_1); + eop[-1] = "/.."[i_1 % 3]; + if (chdir(eop - i)) + perror_msg_and_fail("chdir"); + printf("chdir(\"%s\") = 0\n", eop - i); + } +} + +static void +test_efault(const unsigned int test_max) +{ + char *p = tail_alloc(test_max); + const char *const efault = p + test_max; + memset(p, '/', test_max); + + for (; p <= efault; ++p) { + if (p <= efault - PATH_MAX) + continue; + printf("chdir(%p) = %s\n", p, sprintrc(chdir(p))); + } +} + +static void +test_enametoolong(void) +{ + char *p = tail_alloc(PATH_MAX); + memset(p, '/', PATH_MAX); + + printf("chdir(\"%.*s\"...) = %s\n", + PATH_MAX - 1, p, sprintrc(chdir(p))); +} + +void +test_printpath(const unsigned int test_max) +{ + /* + * /../..| + * /../.|. + * /../|.. + * /..|/.. + * /.|./.. + * /|../.. + * |/../.. + */ + const unsigned int page_size = get_page_size(); + char *p = tail_alloc(test_max + page_size); + unsigned int i; + for (i = 1; i < sizeof(long); ++i) + test_printpath_at(p + i, test_max); + for (i = 0; i < sizeof(long); ++i) + test_printpath_at(p + page_size - i, test_max); + test_efault(test_max); + test_enametoolong(); +} |