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59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/* NSS service provider with errno clobber.
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Copyright (C) 2022-2025 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 <errno.h>
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#include <nss.h>
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#include <stdlib.h>
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/* Catch misnamed and functions. */
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#pragma GCC diagnostic error "-Wmissing-prototypes"
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NSS_DECLARE_MODULE_FUNCTIONS (test_errno)
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static void __attribute__ ((constructor))
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init (void)
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{
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/* An arbitrary error code which is otherwise not used. */
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errno = -1009;
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}
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/* Lookup functions for pwd follow that do not return any data. */
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/* Catch misnamed function definitions. */
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enum nss_status
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_nss_test_errno_setpwent (int stayopen)
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{
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setenv ("_nss_test_errno_setpwent", "yes", 1);
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return NSS_STATUS_SUCCESS;
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}
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enum nss_status
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_nss_test_errno_getpwent_r (struct passwd *result,
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char *buffer, size_t size, int *errnop)
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{
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setenv ("_nss_test_errno_getpwent_r", "yes", 1);
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return NSS_STATUS_NOTFOUND;
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}
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enum nss_status
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_nss_test_errno_endpwent (void)
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{
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setenv ("_nss_test_errno_endpwent", "yes", 1);
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return NSS_STATUS_SUCCESS;
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}
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