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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* | |
| 3 * The contents of this file are subject to the Mozilla Public | |
| 4 * License Version 1.1 (the "License"); you may not use this file | |
| 5 * except in compliance with the License. You may obtain a copy of | |
| 6 * the License at http://www.mozilla.org/MPL/ | |
| 7 * | |
| 8 * Software distributed under the License is distributed on an "AS | |
| 9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or | |
| 10 * implied. See the License for the specific language governing | |
| 11 * rights and limitations under the License. | |
| 12 * | |
| 13 * The Original Code is the Netscape Portable Runtime (NSPR). | |
| 14 * | |
| 15 * The Initial Developer of the Original Code is Netscape | |
| 16 * Communications Corporation. Portions created by Netscape are | |
| 17 * Copyright (C) 1998-2000 Netscape Communications Corporation. All | |
| 18 * Rights Reserved. | |
| 19 * | |
| 20 * Contributor(s): | |
| 21 * | |
| 22 * Alternatively, the contents of this file may be used under the | |
| 23 * terms of the GNU General Public License Version 2 or later (the | |
| 24 * "GPL"), in which case the provisions of the GPL are applicable | |
| 25 * instead of those above. If you wish to allow use of your | |
| 26 * version of this file only under the terms of the GPL and not to | |
| 27 * allow others to use your version of this file under the MPL, | |
| 28 * indicate your decision by deleting the provisions above and | |
| 29 * replace them with the notice and other provisions required by | |
| 30 * the GPL. If you do not delete the provisions above, a recipient | |
| 31 * may use your version of this file under either the MPL or the | |
| 32 * GPL. | |
| 33 */ | |
| 34 | |
| 35 #ifndef _plbase64_h | |
| 36 #define _plbase64_h | |
| 37 | |
| 38 #include "prtypes.h" | |
| 39 | |
| 40 PR_BEGIN_EXTERN_C | |
| 41 | |
| 42 /* | |
| 43 * PL_Base64Encode | |
| 44 * | |
| 45 * This routine encodes the data pointed to by the "src" parameter using the | |
| 46 * base64 algorithm, and returns a pointer to the result. If the "srclen" | |
| 47 * parameter is not zero, it specifies the length of the source data. If it | |
| 48 * is zero, the source data is assumed to be null-terminated, and PL_strlen | |
| 49 * is used to determine the source length. If the "dest" parameter is not | |
| 50 * null, it is assumed to point to a buffer of sufficient size (which may be | |
| 51 * calculated: ((srclen + 2)/3)*4) into which the encoded data is placed | |
| 52 * (without any termination). If the "dest" parameter is null, a buffer is | |
| 53 * allocated from the heap to hold the encoded data, and the result *will* | |
| 54 * be terminated with an extra null character. It is the caller's | |
| 55 * responsibility to free the result when it is allocated. A null is returned | |
| 56 * if the allocation fails. | |
| 57 */ | |
| 58 | |
| 59 PR_EXTERN(char *) | |
| 60 PL_Base64Encode | |
| 61 ( | |
| 62 const char *src, | |
| 63 PRUint32 srclen, | |
| 64 char *dest | |
| 65 ); | |
| 66 | |
| 67 /* | |
| 68 * PL_Base64Decode | |
| 69 * | |
| 70 * This routine decodes the data pointed to by the "src" parameter using | |
| 71 * the base64 algorithm, and returns a pointer to the result. The source | |
| 72 * may either include or exclude any trailing '=' characters. If the | |
| 73 * "srclen" parameter is not zero, it specifies the length of the source | |
| 74 * data. If it is zero, PL_strlen will be used to determine the source | |
| 75 * length. If the "dest" parameter is not null, it is assumed to point to | |
| 76 * a buffer of sufficient size (which may be calculated: (srclen * 3)/4 | |
| 77 * when srclen includes the '=' characters) into which the decoded data | |
| 78 * is placed (without any termination). If the "dest" parameter is null, | |
| 79 * a buffer is allocated from the heap to hold the decoded data, and the | |
| 80 * result *will* be terminated with an extra null character. It is the | |
| 81 * caller's responsibility to free the result when it is allocated. A null | |
| 82 * is retuned if the allocation fails, or if the source is not well-coded. | |
| 83 */ | |
| 84 | |
| 85 PR_EXTERN(char *) | |
| 86 PL_Base64Decode | |
| 87 ( | |
| 88 const char *src, | |
| 89 PRUint32 srclen, | |
| 90 char *dest | |
| 91 ); | |
| 92 | |
| 93 PR_END_EXTERN_C | |
| 94 | |
| 95 #endif /* _plbase64_h */ | |
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