gsasl  1.8.0
external/client.c
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00001 /* client.c --- EXTERNAL mechanism as defined in RFC 2222, client side.
00002  * Copyright (C) 2002-2012 Simon Josefsson
00003  *
00004  * This file is part of GNU SASL Library.
00005  *
00006  * GNU SASL Library is free software; you can redistribute it and/or
00007  * modify it under the terms of the GNU Lesser General Public License
00008  * as published by the Free Software Foundation; either version 2.1 of
00009  * the License, or (at your option) any later version.
00010  *
00011  * GNU SASL Library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014  * Lesser General Public License for more details.
00015  *
00016  * You should have received a copy of the GNU Lesser General Public
00017  * License along with GNU SASL Library; if not, write to the Free
00018  * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
00019  * Boston, MA 02110-1301, USA.
00020  *
00021  */
00022 
00023 #ifdef HAVE_CONFIG_H
00024 #include "config.h"
00025 #endif
00026 
00027 /* Get specification. */
00028 #include "external.h"
00029 
00030 /* Get strdup, strlen. */
00031 #include <string.h>
00032 
00033 int
00034 _gsasl_external_client_step (Gsasl_session * sctx,
00035                              void *mech_data,
00036                              const char *input, size_t input_len,
00037                              char **output, size_t * output_len)
00038 {
00039   const char *p;
00040 
00041   p = gsasl_property_get (sctx, GSASL_AUTHZID);
00042   if (!p)
00043     p = "";
00044 
00045   *output = strdup (p);
00046   if (!*output)
00047     return GSASL_MALLOC_ERROR;
00048   *output_len = strlen (p);
00049 
00050   return GSASL_OK;
00051 }