lib/gssapi/mech/gss_release_cred.c

   1 /*-
   2  * Copyright (c) 2005 Doug Rabson
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  *
  14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  24  * SUCH DAMAGE.
  25  *
  26  *      $FreeBSD: src/lib/libgssapi/gss_release_cred.c,v 1.1 2005/12/29 14:40:20 dfr Exp $
  27  */
  28
  29 #include "mech_locl.h"
  30
  31 /**
  32  * Release a credentials
  33  *
  34  * Its ok to release the GSS_C_NO_CREDENTIAL/NULL credential, it will
  35  * return a GSS_S_COMPLETE error code. On return cred_handle is set ot
  36  * GSS_C_NO_CREDENTIAL.
  37  *
  38  * Example:
  39  *
  40  * @code
  41  * gss_cred_id_t cred = GSS_C_NO_CREDENTIAL;
  42  * major = gss_release_cred(&minor, &cred);
  43  * @endcode
  44  *
  45  * @param minor_status minor status return code, mech specific
  46  * @param cred_handle a pointer to the credential too release
  47  *
  48  * @return an gssapi error code
  49  *
  50  * @ingroup gssapi
  51  */
  52
  53 OM_uint32 GSSAPI_LIB_FUNCTION
  54 gss_release_cred(OM_uint32 *minor_status, gss_cred_id_t *cred_handle)
  55 {
  56         struct _gss_cred *cred = (struct _gss_cred *) *cred_handle;
  57         struct _gss_mechanism_cred *mc;
  58
  59         if (*cred_handle == GSS_C_NO_CREDENTIAL)
  60             return (GSS_S_COMPLETE);
  61
  62         while (SLIST_FIRST(&cred->gc_mc)) {
  63                 mc = SLIST_FIRST(&cred->gc_mc);
  64                 SLIST_REMOVE_HEAD(&cred->gc_mc, gmc_link);
  65                 mc->gmc_mech->gm_release_cred(minor_status, &mc->gmc_cred);
  66                 free(mc);
  67         }
  68         free(cred);
  69
  70         *minor_status = 0;
  71         *cred_handle = GSS_C_NO_CREDENTIAL;
  72         return (GSS_S_COMPLETE);
  73 }