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88ce558a31
strerror, strsignal, and their variants should return unique strings for each known (and, depending on the function, unknown) error/signal. Add tests to verify this for strerror, strerror_r (GNU and XSI compliant variants), and strerror_l (for the C locale), strerrordesc_np, strsignal, sigabbrev_np, and sigdescr_np. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Florian Weimer <fweimer@redhat.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
80 lines
2.3 KiB
C
80 lines
2.3 KiB
C
/* Test that strerror variants return unique strings for each errnum.
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Copyright (C) 2025 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 <string.h>
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#include <stdlib.h>
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#include <support/support.h>
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#include <support/check.h>
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#include "tst-verify-unique-strings.c"
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/* As defined by stdio-common/errlist-data-gen.c */
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#include <errno.h>
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#include <stdio-common/err_map.h>
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#define N_(msgid) msgid
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const char *const errlist_internal[] __attribute_maybe_unused__ =
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{
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#define _S(n, str) [ERR_MAP(n)] = str,
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#include <errlist.h>
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#undef _S
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};
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const int errlist_internal_len = array_length (errlist_internal);
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static int
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do_test (void)
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{
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char *string[2 * errlist_internal_len + 1];
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/* Convenient indexing for error strings from -errlist_internal_len to
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errlist_internal_len. */
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char **err_str = string + errlist_internal_len;
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unsetenv ("LANGUAGE");
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xsetlocale (LC_ALL, "C");
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for (int i = -errlist_internal_len; i <= errlist_internal_len; i++)
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{
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#ifdef TEST_STRERROR_VARIANT
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/* Used for testing strerror_r and strerror_l. */
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err_str[i] = TEST_STRERROR_VARIANT (i);
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#else
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err_str[i] = xstrdup (strerror (i));
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#endif
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int is_unknown_error
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= (strstr (err_str[i], "Unknown error ") == err_str[i]);
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TEST_VERIFY_EXIT ((i >= 0 && i < errlist_internal_len)
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|| is_unknown_error);
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}
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/* We check for and fail on duplicate strings. */
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VERIFY_UNIQUE_STRINGS (string, 2 * errlist_internal_len + 1);
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for (int i = -errlist_internal_len; i <= errlist_internal_len; i++)
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free (err_str[i]);
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return 0;
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}
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#include <support/test-driver.c>
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