usr/src/lib/gss_mechs/mech_krb5/mech/set_ccache.c

   1 /*
   2  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
   3  * Use is subject to license terms.
   4  */
   5
   6
   7 /*
   8  * lib/gssapi/krb5/set_ccache.c
   9  *
  10  * Copyright 1999, 2003 by the Massachusetts Institute of Technology.
  11  * All Rights Reserved.
  12  *
  13  * Export of this software from the United States of America may
  14  *   require a specific license from the United States Government.
  15  *   It is the responsibility of any person or organization contemplating
  16  *   export to obtain such a license before exporting.
  17  *
  18  * WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
  19  * distribute this software and its documentation for any purpose and
  20  * without fee is hereby granted, provided that the above copyright
  21  * notice appear in all copies and that both that copyright notice and
  22  * this permission notice appear in supporting documentation, and that
  23  * the name of M.I.T. not be used in advertising or publicity pertaining
  24  * to distribution of the software without specific, written prior
  25  * permission.  Furthermore if you modify this software you must label
  26  * your software as modified software and not distribute it in such a
  27  * fashion that it might be confused with the original M.I.T. software.
  28  * M.I.T. makes no representations about the suitability of
  29  * this software for any purpose.  It is provided "as is" without express
  30  * or implied warranty.
  31  *
  32  * Set ccache name used by gssapi, and optionally obtain old ccache
  33  * name.  Caller should not free returned name.
  34  */
  35
  36 #include <string.h>
  37 #include "gssapiP_krb5.h"
  38 #include "gss_libinit.h"
  39
  40 OM_uint32 KRB5_CALLCONV
  41 gss_krb5_ccache_name(minor_status, name, out_name)
  42         OM_uint32 *minor_status;
  43         const char *name;
  44         const char **out_name;
  45 {
  46     char *old_name = NULL;
  47     OM_uint32 err = 0;
  48     OM_uint32 minor = 0;
  49     char *gss_out_name;
  50
  51     err = gssint_initialize_library();
  52     if (err) {
  53         *minor_status = err;
  54         return GSS_S_FAILURE;
  55     }
  56
  57     gss_out_name = k5_getspecific(K5_KEY_GSS_KRB5_SET_CCACHE_OLD_NAME);
  58
  59     if (out_name) {
  60         const char *tmp_name = NULL;
  61
  62         if (!err) {
  63             kg_get_ccache_name (&err, &tmp_name);
  64         }
  65         if (!err) {
  66             old_name = gss_out_name;
  67             /* Solaris Kerberos */
  68             gss_out_name = (char *)tmp_name;
  69         }
  70     }
  71     /* If out_name was NULL, we keep the same gss_out_name value, and
  72        don't free up any storage (leave old_name NULL).  */
  73
  74     if (!err)
  75         kg_set_ccache_name (&err, name);
  76
  77     minor = k5_setspecific(K5_KEY_GSS_KRB5_SET_CCACHE_OLD_NAME, gss_out_name);
  78     if (minor) {
  79         /* Um.  Now what?  */
  80         if (err == 0) {
  81             err = minor;
  82         }
  83         free(gss_out_name);
  84         gss_out_name = NULL;
  85     }
  86
  87     if (!err) {
  88         if (out_name) {
  89             *out_name = gss_out_name;
  90         }
  91     }
  92
  93     if (old_name != NULL) {
  94         free (old_name);
  95     }
  96
  97     *minor_status = err;
  98     return (*minor_status == 0) ? GSS_S_COMPLETE : GSS_S_FAILURE;
  99 }