contrib/libpam/libpam/pam_end.c

   1 /* pam_end.c */
   2
   3 /*
   4  * $Id: pam_end.c,v 1.5 1996/12/01 03:14:13 morgan Exp $
   5  * $FreeBSD: src/contrib/libpam/libpam/pam_end.c,v 1.1.1.1.6.2 2001/06/11 15:28:12 markm Exp $
   6  * $DragonFly: src/contrib/libpam/libpam/Attic/pam_end.c,v 1.2 2003/06/17 04:24:03 dillon Exp $
   7  *
   8  * $Log: pam_end.c,v $
   9  */
  10
  11 #include <stdlib.h>
  12
  13 #include "pam_private.h"
  14
  15 int pam_end(pam_handle_t *pamh, int pam_status)
  16 {
  17     int ret;
  18
  19     IF_NO_PAMH("pam_end", pamh, PAM_SYSTEM_ERR);
  20
  21     D(("entering pam_end()"));
  22
  23     /* first liberate the modules (it is not inconcevible that the
  24        modules may need to use the service_name etc. to clean up) */
  25
  26     _pam_free_data(pamh, pam_status);
  27
  28     /* now drop all modules */
  29
  30     if ((ret = _pam_free_handlers(pamh)) != PAM_SUCCESS) {
  31         return ret;                 /* error occurred */
  32     }
  33
  34     /* from this point we cannot call the modules any more. Free the remaining
  35        memory used by the Linux-PAM interface */
  36
  37     _pam_drop_env(pamh);                      /* purge the environment */
  38
  39     _pam_overwrite(pamh->authtok);            /* blank out old token */
  40     _pam_drop(pamh->authtok);
  41
  42     _pam_overwrite(pamh->oldauthtok);         /* blank out old token */
  43     _pam_drop(pamh->oldauthtok);
  44
  45     _pam_overwrite(pamh->former.prompt);
  46     _pam_drop(pamh->former.prompt);           /* drop saved prompt */
  47
  48     _pam_overwrite(pamh->service_name);
  49     _pam_drop(pamh->service_name);
  50
  51     _pam_overwrite(pamh->user);
  52     _pam_drop(pamh->user);
  53
  54     _pam_overwrite(pamh->prompt);
  55     _pam_drop(pamh->prompt);                  /* prompt for pam_get_user() */
  56
  57     _pam_overwrite(pamh->tty);
  58     _pam_drop(pamh->tty);
  59
  60     _pam_overwrite(pamh->rhost);
  61     _pam_drop(pamh->rhost);
  62
  63     _pam_overwrite(pamh->ruser);
  64     _pam_drop(pamh->ruser);
  65
  66     _pam_drop(pamh->pam_conversation);
  67     pamh->fail_delay.delay_fn_ptr = NULL;
  68
  69     _pam_overwrite(pamh->pam_default_log.ident);
  70     _pam_drop(pamh->pam_default_log.ident);
  71
  72     /* and finally liberate the memory for the pam_handle structure */
  73
  74     _pam_drop(pamh);
  75
  76     D(("exiting pam_end() successfully"));
  77
  78     return PAM_SUCCESS;
  79 }