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60 lines
2.4 KiB
C
60 lines
2.4 KiB
C
/* Copyright (c) 2014, Vsevolod Stakhov
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED ''AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL AUTHOR BE LIABLE FOR ANY
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef PUNYCODE_H_
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#define PUNYCODE_H_
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#include <stdbool.h>
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#include <stdint.h>
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/**
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* Convert an UCS4 string to a puny-coded DNS label string suitable
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* when combined with delimiters and other labels for DNS lookup.
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*
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* @param in an UCS4 string to convert
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* @param in_len the length of in.
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* @param out the resulting puny-coded string. The string is not NULL
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* terminated.
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* @param out_len before processing out_len should be the length of
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* the out variable, after processing it will be the length of the out
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* string.
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*
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* @return returns 0 on success, an wind error code otherwise
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*/
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bool rdns_punycode_label_toascii (const uint32_t *in, size_t in_len, char *out, size_t *out_len);
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/**
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* Convert an UTF-8 string to an UCS4 string.
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*
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* @param in an UTF-8 string to convert.
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* @param out the resulting UCS4 string
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* @param out_len before processing out_len should be the length of
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* the out variable, after processing it will be the length of the out
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* string.
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*
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* @return returns 0 on success, an -1 otherwise
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* @ingroup wind
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*/
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int rdns_utf8_to_ucs4 (const char *in, size_t in_len, uint32_t **out, size_t *out_len);
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#endif /* PUNYCODE_H_ */
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