66 lines
2.1 KiB
C
66 lines
2.1 KiB
C
/*
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* This file is part of the Sofia-SIP package
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*
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* Copyright (C) 2005 Nokia Corporation.
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*
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* Contact: Pekka Pessi <pekka.pessi@nokia.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
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* 02110-1301 USA
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*
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*/
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#ifndef BASE64_H
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#define BASE64_H
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/**@file sofia-sip/base64.h
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*
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* @brief Base64 encoding and decoding functions.
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*
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* This module contains base64 encoding and decoding functions. Base64
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* encodes arbitrary octet strings as strings containing characters @c
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* [A-Za-z0-9+/=]. Base64 is defined as part of MIME mail format, but it is
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* used widely by other text-based protocols as well.
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*
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* @sa <a href="http://www.ietf.org/rfc/rfc2045.txt">RFC 2045</a>,
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* <i>"Multipurpose Internet Mail Extensions (MIME) Part One:
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* Format of Internet Message Bodies"</i>,
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* N. Freed, N. Borenstein,
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* November 1996.
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*
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* @author Pekka Pessi <Pekka.Pessi@nokia.com>
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*/
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#ifndef SU_TYPES_H
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#include <sofia-sip/su_types.h>
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#endif
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SOFIA_BEGIN_DECLS
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/** Decode a BASE64-encoded string. */
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SOFIAPUBFUN isize_t base64_d(char buf[], isize_t bsiz, char const *b64s);
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/** Encode data with BASE64. */
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SOFIAPUBFUN isize_t base64_e(char buf[], isize_t bsiz, void *data, isize_t dsiz);
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/** Calculate size of n bytes encoded in base64 */
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#define BASE64_SIZE(n) ((((n) + 2) / 3) * 4)
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/** Calculate size of n bytes encoded in base64 sans trailing =. @NEW_1_12_5. */
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#define BASE64_MINSIZE(n) ((n * 4 + 2) / 3)
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SOFIA_END_DECLS
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#endif /* !BASE_64 */
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