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 <string.h>
      40  #include <security/pam_appl.h>
      41  #include <security/pam_misc.h>
      42  
      43  static struct pam_conv conv = {
      44      misc_conv,
      45      NULL
      46  };
      47  
      48  static int debug = 0;
      49  
      50  /*
      51    https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=196859
      52  
      53    This stack should not return PAM_IGNORE to the application:
      54    auth [default=bad] pam_debug.so auth=ignore
      55  */
      56  static int
      57  test1 (void)
      58  {
      59    pam_handle_t *pamh=NULL;
      60    const char *user="nobody";
      61    int retval;
      62  
      63    retval = pam_start("tst-pam_dispatch1", user, &conv, &pamh);
      64    if (retval != PAM_SUCCESS)
      65      {
      66        if (debug)
      67  	fprintf (stderr, "test1: pam_start returned %d\n", retval);
      68        return 1;
      69      }
      70  
      71    retval = pam_authenticate(pamh, 0);
      72    if (retval != PAM_PERM_DENIED)
      73      {
      74        if (debug)
      75  	fprintf (stderr, "test1: pam_authenticate returned %d\n", retval);
      76        return 1;
      77      }
      78  
      79    retval = pam_end(pamh,retval);
      80    if (retval != PAM_SUCCESS)
      81      {
      82        if (debug)
      83  	fprintf (stderr, "test1: pam_end returned %d\n", retval);
      84        return 1;
      85      }
      86    return 0;
      87  }
      88  
      89  
      90  int main(int argc, char *argv[])
      91  {
      92      if (argc > 1 && strcmp (argv[1], "-d") == 0)
      93        debug = 1;
      94  
      95      if (test1 ())
      96        return 1;
      97  
      98      return 0;
      99  }