lib/gssapi/krb5/ccache_name.c

   1 /*
   2  * Copyright (c) 2004 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 #include "gsskrb5_locl.h"
  35
  36 char *last_out_name;
  37
  38 OM_uint32
  39 _gsskrb5_krb5_ccache_name(OM_uint32 *minor_status,
  40                           const char *name,
  41                           const char **out_name)
  42 {
  43     krb5_context context;
  44     krb5_error_code kret;
  45
  46     *minor_status = 0;
  47
  48     GSSAPI_KRB5_INIT(&context);
  49
  50     if (out_name) {
  51         const char *n;
  52
  53         if (last_out_name) {
  54             free(last_out_name);
  55             last_out_name = NULL;
  56         }
  57
  58         n = krb5_cc_default_name(context);
  59         if (n == NULL) {
  60             *minor_status = ENOMEM;
  61             return GSS_S_FAILURE;
  62         }
  63         last_out_name = strdup(n);
  64         if (last_out_name == NULL) {
  65             *minor_status = ENOMEM;
  66             return GSS_S_FAILURE;
  67         }
  68         *out_name = last_out_name;
  69     }
  70
  71     kret = krb5_cc_set_default_name(context, name);
  72     if (kret) {
  73         *minor_status = kret;
  74         return GSS_S_FAILURE;
  75     }
  76     return GSS_S_COMPLETE;
  77 }