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/* Copyright (c) 2014, Vsevolod Stakhov
* 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 ''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 AUTHOR 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 PUNYCODE_H_
#define PUNYCODE_H_
#include <stdbool.h>
#include <stdint.h>
/**
* Convert an UCS4 string to a puny-coded DNS label string suitable
* when combined with delimiters and other labels for DNS lookup.
*
* @param in an UCS4 string to convert
* @param in_len the length of in.
* @param out the resulting puny-coded string. The string is not NULL
* terminated.
* @param out_len before processing out_len should be the length of
* the out variable, after processing it will be the length of the out
* string.
*
* @return returns 0 on success, an wind error code otherwise
*/
bool rdns_punycode_label_toascii (const uint32_t *in, size_t in_len, char *out, size_t *out_len);
/**
* Convert an UTF-8 string to an UCS4 string.
*
* @param in an UTF-8 string to convert.
* @param out the resulting UCS4 string
* @param out_len before processing out_len should be the length of
* the out variable, after processing it will be the length of the out
* string.
*
* @return returns 0 on success, an -1 otherwise
* @ingroup wind
*/
int rdns_utf8_to_ucs4 (const char *in, size_t in_len, uint32_t **out, size_t *out_len);
#endif /* PUNYCODE_H_ */
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