nss/tst-nss-test1.c

   1 /* Basic test of passwd database handling.
   2    Copyright (C) 2017-2021 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <nss.h>
  20 #include <pwd.h>
  21 #include <stdio.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24
  25 #include <support/support.h>
  26
  27 #include "nss_test.h"
  28
  29 static int hook_called = 0;
  30
  31 /* Note: the values chosen here are arbitrary; they need only be
  32    unique within the table.  However, they do need to match the
  33    "pwdids" array further down.  */
  34 static struct passwd pwd_table[] = {
  35     PWD (100),
  36     PWD (30),
  37     PWD (200),
  38     PWD (60),
  39     PWD (20000),
  40     PWD_LAST ()
  41   };
  42
  43 void
  44 _nss_test1_init_hook(test_tables *t)
  45 {
  46   hook_called = 1;
  47   t->pwd_table = pwd_table;
  48 }
  49
  50 static int
  51 do_test (void)
  52 {
  53   int retval = 0;
  54
  55   __nss_configure_lookup ("passwd", "test1");
  56
  57   /* This must match the pwd_table above.  */
  58   static const unsigned int pwdids[] = { 100, 30, 200, 60, 20000 };
  59 #define npwdids (sizeof (pwdids) / sizeof (pwdids[0]))
  60
  61   setpwent ();
  62
  63   const unsigned int *np = pwdids;
  64   for (struct passwd *p = getpwent (); p != NULL; ++np, p = getpwent ())
  65     {
  66       retval += compare_passwds (np-pwdids, p, & pwd_table[np-pwdids]);
  67
  68       if (p->pw_uid != *np || strncmp (p->pw_name, "name", 4) != 0
  69           || atol (p->pw_name + 4) != *np)
  70         {
  71           printf ("FAIL: passwd entry %td wrong (%s, %u)\n",
  72                   np - pwdids, p->pw_name, p->pw_uid);
  73           retval = 1;
  74           break;
  75         }
  76     }
  77
  78   endpwent ();
  79
  80   for (int i = npwdids - 1; i >= 0; --i)
  81     {
  82       char buf[30];
  83       snprintf (buf, sizeof (buf), "name%u", pwdids[i]);
  84
  85       struct passwd *p = getpwnam (buf);
  86       if (p == NULL || p->pw_uid != pwdids[i] || strcmp (buf, p->pw_name) != 0)
  87         {
  88           printf ("FAIL: passwd entry \"%s\" wrong\n", buf);
  89           retval = 1;
  90         }
  91
  92       p = getpwuid (pwdids[i]);
  93       if (p == NULL || p->pw_uid != pwdids[i] || strcmp (buf, p->pw_name) != 0)
  94         {
  95           printf ("FAIL: passwd entry %u wrong\n", pwdids[i]);
  96           retval = 1;
  97         }
  98
  99       snprintf (buf, sizeof (buf), "name%u", pwdids[i] + 1);
 100
 101       p = getpwnam (buf);
 102       if (p != NULL)
 103         {
 104           printf ("FAIL: passwd entry \"%s\" wrong\n", buf);
 105           retval = 1;
 106         }
 107
 108       p = getpwuid (pwdids[i] + 1);
 109       if (p != NULL)
 110         {
 111           printf ("FAIL: passwd entry %u wrong\n", pwdids[i] + 1);
 112           retval = 1;
 113         }
 114     }
 115
 116   if (!hook_called)
 117     {
 118       retval = 1;
 119       printf("FAIL: init hook never called\n");
 120     }
 121
 122   return retval;
 123 }
 124
 125 #include <support/test-driver.c>