1  /*
       2   * Redistribution and use in source and binary forms, with or without
       3   * modification, are permitted provided that the following conditions
       4   * are met:
       5   * 1. Redistributions of source code must retain the above copyright
       6   *    notice, and the entire permission notice in its entirety,
       7   *    including the disclaimer of warranties.
       8   * 2. Redistributions in binary form must reproduce the above copyright
       9   *    notice, this list of conditions and the following disclaimer in the
      10   *    documentation and/or other materials provided with the distribution.
      11   * 3. The name of the author may not be used to endorse or promote
      12   *    products derived from this software without specific prior
      13   *    written permission.
      14   *
      15   * ALTERNATIVELY, this product may be distributed under the terms of
      16   * the GNU Public License, in which case the provisions of the GPL are
      17   * required INSTEAD OF the above restrictions.  (This clause is
      18   * necessary due to a potential bad interaction between the GPL and
      19   * the restrictions contained in a BSD-style copyright.)
      20   *
      21   * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
      22   * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
      23   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
      24   * DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
      25   * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
      26   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
      27   * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
      28   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
      29   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
      30   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
      31   * OF THE POSSIBILITY OF SUCH DAMAGE.
      32   */
      33  
      34  #ifdef HAVE_CONFIG_H
      35  #include <config.h>
      36  #endif
      37  
      38  #include <stdio.h>
      39  #include <unistd.h>
      40  
      41  #include <security/pam_appl.h>
      42  #include "pam_inline.h"
      43  
      44  struct mapping {
      45    int type;
      46    const char *string;
      47    int expected;
      48  };
      49  
      50  struct mapping items[] = {
      51    {PAM_SERVICE, "PAM_SERVICE", PAM_SUCCESS},
      52    {PAM_USER, "PAM_USER", 0},
      53    {PAM_TTY, "PAM_TTY", 0},
      54    {PAM_RHOST, "PAM_RHOST", 0},
      55    {PAM_CONV, "PAM_CONV", 0},
      56    {PAM_AUTHTOK, "PAM_AUTHTOK", PAM_BAD_ITEM},
      57    {PAM_OLDAUTHTOK, "PAM_OLDAUTHTOK", PAM_BAD_ITEM},
      58    {PAM_RUSER, "PAM_RUSER", 0},
      59    {PAM_USER_PROMPT, "PAM_USER_PROMPT", 0},
      60    {PAM_FAIL_DELAY, "PAM_FAIL_DELAY", 0},
      61    {PAM_AUTHTOK_TYPE, "PAM_AUTHTOK_TYPE", 0}
      62  };
      63  
      64  int
      65  main (void)
      66  {
      67    const char *service = "dummy";
      68    const char *user = "root";
      69    struct pam_conv conv = { NULL, NULL };
      70    pam_handle_t *pamh;
      71    int retval;
      72    unsigned int i;
      73    const void *value;
      74  
      75    /* 1: Call with NULL as pam handle */
      76    retval = pam_get_item (NULL, PAM_SERVICE, &value);
      77    if (retval == PAM_SUCCESS)
      78      {
      79        fprintf (stderr, "pam_get_item (NULL, 0) returned PAM_SUCCESS\n");
      80        return 1;
      81      }
      82  
      83    /* setup pam handle */
      84    retval = pam_start (service, user, &conv, &pamh);
      85    if (retval != PAM_SUCCESS)
      86      {
      87        fprintf (stderr, "pam_start (%s, %s, &conv, &pamh) returned %d\n",
      88                 service, user, retval);
      89        return 1;
      90      }
      91  
      92    /* 2: check for valid item types. Expected return value is
      93       PAM_SUCCESS, except it has to fail. */
      94    for (i = 0; i < PAM_ARRAY_SIZE(items); i++)
      95      {
      96        retval = pam_get_item (pamh, items[i].type, &value);
      97  
      98        if (retval != items[i].expected)
      99  	{
     100  	  fprintf (stderr,
     101  		   "pam_get_item failed to get value for %s. Returned %d\n",
     102  		   items[i].string, retval);
     103  	  return 1;
     104          }
     105      }
     106  
     107    /* 3: check for bad item  */
     108    retval = pam_get_item (pamh, -1, &value);
     109    if (retval != PAM_BAD_ITEM)
     110      {
     111        fprintf (stderr,
     112  	       "pam_get_item returned %d when expecting PAM_BAD_ITEM\n",
     113  	       retval);
     114        return 1;
     115      }
     116  
     117    /* 4: check for valid item types, but NULL as value address. */
     118    for (i = 0; i < PAM_ARRAY_SIZE(items); i++)
     119      {
     120        retval = pam_get_item (pamh, items[i].type, NULL);
     121  
     122        if (retval != PAM_PERM_DENIED)
     123  	{
     124  	  fprintf (stderr,
     125  		   "pam_get_item returned %d to get value for %s\n",
     126  		   retval, items[i].string);
     127  	  return 1;
     128          }
     129      }
     130  
     131    pam_end (pamh, 0);
     132  
     133    return 0;
     134  }