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/* server.c --- ANONYMOUS mechanism as defined in RFC 2245, server side.
* Copyright (C) 2002-2022 Simon Josefsson
*
* This file is part of GNU SASL Library.
*
* GNU SASL Library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* as published by the Free Software Foundation; either version 2.1 of
* the License, or (at your option) any later version.
*
* GNU SASL Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with GNU SASL Library; if not, write to the Free
* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
*/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
/* Get specification. */
#include "anonymous.h"
int
_gsasl_anonymous_server_step (Gsasl_session * sctx,
void *mech_data _GL_UNUSED,
const char *input, size_t input_len,
char **output, size_t *output_len)
{
int rc;
*output = NULL;
*output_len = 0;
if (!input)
return GSASL_NEEDS_MORE;
/* token = 1*255TCHAR
The <token> production is restricted to 255 UTF-8 encoded Unicode
characters. As the encoding of a characters uses a sequence of 1
to 4 octets, a token may be long as 1020 octets. */
if (input_len == 0 || input_len > 1020)
return GSASL_MECHANISM_PARSE_ERROR;
/* FIXME: Validate that input is UTF-8. */
rc = gsasl_property_set_raw (sctx, GSASL_ANONYMOUS_TOKEN, input, input_len);
if (rc != GSASL_OK)
return rc;
return gsasl_callback (NULL, sctx, GSASL_VALIDATE_ANONYMOUS);
}
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