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675bdaeeca
The input argument passes an invalid string without a NUL terminator on crypt settings inputs, which might lead to invalid OOB on strncmp. Implementations only assume there is a NUL terminator if the string is shorter than the specified size, so strings don't need to always be NUL terminated (stratcliff.c has tests for this). Also adapt the code to use libsupport. Checked on arm-linux-gnuabihf.
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/* Test program for bad DES salt detection in crypt.
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Copyright (C) 2012-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <array_length.h>
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#include <stddef.h>
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#include <crypt.h>
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#include <support/check.h>
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static const char *tests[][2] =
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{
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{ "no salt", "" },
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{ "single char", "/" },
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{ "first char bad", "!x" },
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{ "second char bad", "Z%" },
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{ "both chars bad", ":@" },
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{ "un$upported algorithm", "$2$" },
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{ "unsupported_algorithm", "_1" },
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};
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static int
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do_test (void)
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{
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struct crypt_data cd;
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/* Mark cd as initialized before first call to crypt_r. */
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cd.initialized = 0;
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for (size_t i = 0; i < array_length (tests); i++)
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{
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TEST_VERIFY (crypt (tests[i][0], tests[i][1]) == NULL);
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TEST_VERIFY (crypt_r (tests[i][0], tests[i][1], &cd) == NULL);
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}
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return 0;
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}
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#include <support/test-driver.c>
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