99 lines
3.9 KiB
C
99 lines
3.9 KiB
C
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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the Netscape Portable Runtime (NSPR).
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998-2000
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#ifndef _plbase64_h
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#define _plbase64_h
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#include "prtypes.h"
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PR_BEGIN_EXTERN_C
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/*
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* PL_Base64Encode
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*
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* This routine encodes the data pointed to by the "src" parameter using the
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* base64 algorithm, and returns a pointer to the result. If the "srclen"
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* parameter is not zero, it specifies the length of the source data. If it
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* is zero, the source data is assumed to be null-terminated, and PL_strlen
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* is used to determine the source length. If the "dest" parameter is not
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* null, it is assumed to point to a buffer of sufficient size (which may be
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* calculated: ((srclen + 2)/3)*4) into which the encoded data is placed
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* (without any termination). If the "dest" parameter is null, a buffer is
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* allocated from the heap to hold the encoded data, and the result *will*
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* be terminated with an extra null character. It is the caller's
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* responsibility to free the result when it is allocated. A null is returned
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* if the allocation fails.
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*/
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PR_EXTERN(char *)
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PL_Base64Encode
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(
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const char *src,
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PRUint32 srclen,
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char *dest
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);
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/*
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* PL_Base64Decode
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*
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* This routine decodes the data pointed to by the "src" parameter using
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* the base64 algorithm, and returns a pointer to the result. The source
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* may either include or exclude any trailing '=' characters. If the
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* "srclen" parameter is not zero, it specifies the length of the source
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* data. If it is zero, PL_strlen will be used to determine the source
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* length. If the "dest" parameter is not null, it is assumed to point to
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* a buffer of sufficient size (which may be calculated: (srclen * 3)/4
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* when srclen includes the '=' characters) into which the decoded data
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* is placed (without any termination). If the "dest" parameter is null,
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* a buffer is allocated from the heap to hold the decoded data, and the
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* result *will* be terminated with an extra null character. It is the
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* caller's responsibility to free the result when it is allocated. A null
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* is retuned if the allocation fails, or if the source is not well-coded.
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*/
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PR_EXTERN(char *)
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PL_Base64Decode
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(
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const char *src,
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PRUint32 srclen,
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char *dest
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);
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PR_END_EXTERN_C
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#endif /* _plbase64_h */
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