contrib/libpam/libpam/pam_password.c

   1 /* pam_password.c - PAM Password Management */
   2
   3 /*
   4  * $Id: pam_password.c,v 1.7 1997/04/05 06:56:45 morgan Exp $
   5  * $FreeBSD: src/contrib/libpam/libpam/pam_password.c,v 1.1.1.1.6.2 2001/06/11 15:28:12 markm Exp $
   6  *
   7  * $Log: pam_password.c,v $
   8  */
   9
  10 #include <stdio.h>
  11 #include <stdlib.h>
  12
  13 #include "pam_private.h"
  14
  15 int pam_chauthtok(pam_handle_t *pamh, int flags)
  16 {
  17     int retval;
  18
  19     D(("called."));
  20
  21     IF_NO_PAMH("pam_chauthtok", pamh, PAM_SYSTEM_ERR);
  22
  23     if (pamh->former.choice == PAM_NOT_STACKED) {
  24         _pam_start_timer(pamh);    /* we try to make the time for a failure
  25                                       independent of the time it takes to
  26                                       fail */
  27         _pam_sanitize(pamh);
  28         pamh->former.update = PAM_FALSE;
  29     }
  30
  31     /* first loop through to check if there will be a problem */
  32     if (pamh->former.update ||
  33         (retval = _pam_dispatch(pamh, flags|PAM_PRELIM_CHECK,
  34                                 PAM_CHAUTHTOK)) == PAM_SUCCESS) {
  35         pamh->former.update = PAM_TRUE;
  36         retval = _pam_dispatch(pamh, flags|PAM_UPDATE_AUTHTOK,
  37                                PAM_CHAUTHTOK);
  38     }
  39
  40     /* if we completed we should clean up */
  41     if (retval != PAM_INCOMPLETE) {
  42         _pam_sanitize(pamh);
  43         pamh->former.update = PAM_FALSE;
  44         _pam_await_timer(pamh, retval);   /* if unsuccessful then wait now */
  45         D(("pam_authenticate exit"));
  46     } else {
  47         D(("will resume when ready"));
  48     }
  49
  50     return retval;
  51 }
  52