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  
      43  
      44  int
      45  main (void)
      46  {
      47    const char *service = "dummy";
      48    const char *user = "root";
      49    struct pam_conv conv = { NULL, NULL };
      50    pam_handle_t *pamh;
      51    int retval;
      52  
      53    /* 1: check with valid arguments */
      54    retval = pam_start (service, user, &conv, &pamh);
      55    if (retval != PAM_SUCCESS)
      56      {
      57        fprintf (stderr, "pam_start (%s, %s, &conv, &pamh) returned %d\n",
      58  	       service, user, retval);
      59        return 1;
      60      }
      61    else if (pamh == NULL)
      62      {
      63        fprintf (stderr,
      64  	       "pam_start (%s, %s, &conv, &pamh) returned NULL for pamh\n",
      65  	       service, user);
      66        return 1;
      67      }
      68  
      69    /* 2: check with NULL for service */
      70    retval = pam_start (NULL, user, &conv, &pamh);
      71    if (retval == PAM_SUCCESS)
      72      {
      73        fprintf (stderr, "pam_start (NULL, %s, &conv, &pamh) returned %d\n",
      74  	       user, retval);
      75        return 1;
      76      }
      77  
      78    /* 3: check with NULL for user */
      79    retval = pam_start (service, NULL, &conv, &pamh);
      80    if (retval != PAM_SUCCESS)
      81      {
      82        fprintf (stderr, "pam_start (%s, NULL, &conv, &pamh) returned %d\n",
      83  	       service, retval);
      84        return 1;
      85      }
      86  
      87  
      88    /* 4: check with NULL for conv */
      89    retval = pam_start (service, user, NULL, &pamh);
      90    if (retval == PAM_SUCCESS)
      91      {
      92        fprintf (stderr, "pam_start (%s, %s, NULL, &pamh) returned %d\n",
      93  	       service, user, retval);
      94        return 1;
      95      }
      96  
      97    /* 5: check with NULL for pamh */
      98    retval = pam_start (service, user, &conv, NULL);
      99    if (retval == PAM_SUCCESS)
     100      {
     101        fprintf (stderr, "pam_start (%s, %s, &conv, NULL) returned %d\n",
     102  	       service, user, retval);
     103        return 1;
     104      }
     105  
     106    return 0;
     107  }