mirror of git://sourceware.org/git/glibc.git
114 lines
2.8 KiB
C
114 lines
2.8 KiB
C
/* Copyright (C) 2015-2021 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 <nss.h>
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#include <pwd.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <support/support.h>
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int
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do_test (void)
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{
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__nss_configure_lookup ("passwd", "files");
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/* Count the number of entries in the password database, and fetch
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data from the first and last entries. */
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size_t count = 0;
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struct passwd * pw;
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char *first_name = NULL;
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uid_t first_uid = 0;
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char *last_name = NULL;
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uid_t last_uid = 0;
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setpwent ();
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while ((pw = getpwent ()) != NULL)
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{
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if (first_name == NULL)
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{
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first_name = xstrdup (pw->pw_name);
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first_uid = pw->pw_uid;
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}
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free (last_name);
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last_name = xstrdup (pw->pw_name);
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last_uid = pw->pw_uid;
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++count;
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}
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endpwent ();
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if (count == 0)
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{
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printf ("No entries in the password database.\n");
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return 0;
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}
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/* Try again, this time interleaving with name-based and UID-based
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lookup operations. The counts do not match if the interleaved
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lookups affected the enumeration. */
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size_t new_count = 0;
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setpwent ();
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while ((pw = getpwent ()) != NULL)
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{
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if (new_count == count)
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{
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printf ("Additional entry in the password database.\n");
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return 1;
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}
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++new_count;
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struct passwd *pw2 = getpwnam (first_name);
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if (pw2 == NULL)
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{
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printf ("getpwnam (%s) failed: %m\n", first_name);
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return 1;
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}
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pw2 = getpwnam (last_name);
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if (pw2 == NULL)
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{
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printf ("getpwnam (%s) failed: %m\n", last_name);
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return 1;
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}
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pw2 = getpwuid (first_uid);
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if (pw2 == NULL)
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{
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printf ("getpwuid (%llu) failed: %m\n",
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(unsigned long long) first_uid);
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return 1;
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}
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pw2 = getpwuid (last_uid);
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if (pw2 == NULL)
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{
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printf ("getpwuid (%llu) failed: %m\n",
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(unsigned long long) last_uid);
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return 1;
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}
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}
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endpwent ();
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if (new_count < count)
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{
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printf ("Missing entry in the password database.\n");
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return 1;
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}
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return 0;
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}
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#define TIMEOUT 300
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#include <support/test-driver.c>
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