/* -*- mode: c; c-basic-offset: 4; indent-tabs-mode: nil -*- */
/* include/k5-hex.h - libkrb5support hex encoding/decoding declarations */
/*
* Copyright (C) 2018 by the Massachusetts Institute of Technology.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef K5_HEX_H
#define K5_HEX_H
#include "k5-platform.h"
/*
* Encode len bytes in hex, placing the result in allocated storage in
* *hex_out. Use uppercase hex digits if uppercase is non-zero. Return 0 on
* success, ENOMEM on error.
*/
int k5_hex_encode(const void *bytes, size_t len, int uppercase,
char **hex_out);
/*
* Decode hex bytes, placing the result in allocated storage in *bytes_out and
* *len_out. Null-terminate the result (primarily for decoding passwords in
* libkdb_ldap). Return 0 on success, ENOMEM or EINVAL on error.
*/
int k5_hex_decode(const char *hex, uint8_t **bytes_out, size_t *len_out);
#endif /* K5_HEX_H */