00001 /** @file 00002 00003 A brief file description 00004 00005 @section license License 00006 00007 Licensed to the Apache Software Foundation (ASF) under one 00008 or more contributor license agreements. See the NOTICE file 00009 distributed with this work for additional information 00010 regarding copyright ownership. The ASF licenses this file 00011 to you under the Apache License, Version 2.0 (the 00012 "License"); you may not use this file except in compliance 00013 with the License. You may obtain a copy of the License at 00014 00015 http://www.apache.org/licenses/LICENSE-2.0 00016 00017 Unless required by applicable law or agreed to in writing, software 00018 distributed under the License is distributed on an "AS IS" BASIS, 00019 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 00020 See the License for the specific language governing permissions and 00021 limitations under the License. 00022 */ 00023 00024 #ifndef _ink_base64_h_ 00025 #define _ink_base64_h_ 00026 00027 /* 00028 * Base64 encoding and decoding as according to RFC1521. Similar to uudecode. 00029 * See RFC1521 for specificiation. 00030 * 00031 * RFC 1521 requires inserting line breaks for long lines. The basic web 00032 * authentication scheme does not require them. This implementation is 00033 * intended for web-related use, and line breaks are not implemented. 00034 * 00035 * These routines return char*'s to malloc-ed strings. The caller is 00036 * responsible for freeing the strings. 00037 * 00038 */ 00039 // Encodes / Decodes into user supplied buffer. Returns number of bytes decoded 00040 bool ats_base64_encode(const char *inBuffer, size_t inBufferSize, char *outBuffer, size_t outBufSize, size_t *length); 00041 bool ats_base64_encode(const unsigned char *inBuffer, size_t inBufferSize, char *outBuffer, size_t outBufSize, size_t *length); 00042 00043 bool ats_base64_decode(const char *inBuffer, size_t inBufferSize, unsigned char *outBuffer, size_t outBufSize, size_t *length); 00044 00045 // Little helper functions to calculate minimum required output buffer for encoding/decoding. 00046 #define ATS_BASE64_ENCODE_DSTLEN(_length) ((_length * 8) / 6 + 4) 00047 #define ATS_BASE64_DECODE_DSTLEN(_length) (((_length + 3) / 4) * 3) 00048 00049 #endif