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