challenge.h

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/* challenge.h --- Generate a CRAM-MD5 challenge string.
 * Copyright (C) 2002-2024 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.
 *
 */
 
#ifndef CHALLENGE_H
# define CHALLENGE_H
 
# define CRAM_MD5_CHALLENGE_LEN 35
 
/* Store zero terminated CRAM-MD5 challenge in output buffer.  The
   CHALLENGE buffer must be allocated by the caller, and must have
   room for CRAM_MD5_CHALLENGE_LEN characters.  Returns 0 on success,
   and -1 on randomness problems.  */
extern int cram_md5_challenge (char challenge[CRAM_MD5_CHALLENGE_LEN]);
 
#endif /* CHALLENGE_H */