Ondřej Surý
c931d8e417
Reformat source code with clang-format Closes #46 See merge request isc-projects/bind9!2156 (cherry picked from commit7099e79a9b)4c3b063eImport Linux kernel .clang-format with small modificationsf50b1e06Use clang-format to reformat the source files11341c76Update the definition files for Windowsdf6c1f76Remove tkey_test (which is no-op anyway)
100 lines
2.7 KiB
C
100 lines
2.7 KiB
C
/*
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* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* See the COPYRIGHT file distributed with this work for additional
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* information regarding copyright ownership.
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*/
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#ifndef ISC_HEX_H
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#define ISC_HEX_H 1
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/*! \file isc/hex.h */
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#include <isc/lang.h>
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#include <isc/types.h>
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ISC_LANG_BEGINDECLS
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/***
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*** Functions
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***/
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isc_result_t
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isc_hex_totext(isc_region_t *source, int wordlength, const char *wordbreak,
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isc_buffer_t *target);
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/*!<
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* \brief Convert data into hex encoded text.
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*
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* Notes:
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*\li The hex encoded text in 'target' will be divided into
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* words of at most 'wordlength' characters, separated by
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* the 'wordbreak' string. No parentheses will surround
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* the text.
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*
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* Requires:
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*\li 'source' is a region containing binary data
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*\li 'target' is a text buffer containing available space
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*\li 'wordbreak' points to a null-terminated string of
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* zero or more whitespace characters
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*
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* Ensures:
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*\li target will contain the hex encoded version of the data
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* in source. The 'used' pointer in target will be advanced as
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* necessary.
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*/
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isc_result_t
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isc_hex_decodestring(const char *cstr, isc_buffer_t *target);
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/*!<
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* \brief Decode a null-terminated hex string.
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*
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* Requires:
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*\li 'cstr' is non-null.
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*\li 'target' is a valid buffer.
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*
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* Returns:
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*\li #ISC_R_SUCCESS -- the entire decoded representation of 'cstring'
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* fit in 'target'.
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*\li #ISC_R_BADHEX -- 'cstr' is not a valid hex encoding.
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*
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* Other error returns are any possible error code from:
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* isc_lex_create(),
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* isc_lex_openbuffer(),
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* isc_hex_tobuffer().
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*/
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isc_result_t
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isc_hex_tobuffer(isc_lex_t *lexer, isc_buffer_t *target, int length);
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/*!<
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* \brief Convert hex-encoded text from a lexer context into
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* `target`. If 'length' is non-negative, it is the expected number of
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* encoded octets to convert.
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*
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* If 'length' is -1 then 0 or more encoded octets are expected.
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* If 'length' is -2 then 1 or more encoded octets are expected.
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*
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* Returns:
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*\li #ISC_R_BADHEX -- invalid hex encoding
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*\li #ISC_R_UNEXPECTEDEND: the text does not contain the expected
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* number of encoded octets.
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*
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* Requires:
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*\li 'lexer' is a valid lexer context
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*\li 'target' is a buffer containing binary data
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*\li 'length' is -2, -1, or non-negative
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*
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* Ensures:
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*\li target will contain the data represented by the hex encoded
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* string parsed by the lexer. No more than `length` octets will
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* be read, if `length` is non-negative. The 'used' pointer in
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* 'target' will be advanced as necessary.
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*/
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ISC_LANG_ENDDECLS
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#endif /* ISC_HEX_H */
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