HTP  0.3
htp_base64.h
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00001 /***************************************************************************
00002  * Copyright 2009-2010 Open Information Security Foundation
00003  * Copyright 2010-2011 Qualys, Inc.
00004  *
00005  * Licensed to You under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  ***************************************************************************/
00017 
00023 /* Adapted from the libb64 project (http://sourceforge.net/projects/libb64), which is in public domain. */
00024 
00025 #ifndef _HTP_BASE64_H
00026 #define _HTP_BASE64_H
00027 
00028 #include "bstr.h"
00029 
00030 #ifdef __cplusplus
00031 extern "C" {
00032 #endif
00033 
00034 typedef enum {
00035     step_a, step_b, step_c, step_d
00036 } htp_base64_decodestep;
00037 
00038 typedef struct {
00039     htp_base64_decodestep step;
00040     char plainchar;
00041 } htp_base64_decoder;
00042 
00043 void htp_base64_decoder_init(htp_base64_decoder* state_in);
00044 
00045 int htp_base64_decode_single(char value_in);
00046 
00047 int htp_base64_decode(htp_base64_decoder* decoder, const char* code_in, const int length_in,
00048     char* plaintext_out, const int length_out);
00049 
00050 bstr *htp_base64_decode_bstr(bstr *input);
00051 bstr *htp_base64_decode_mem(char *data, size_t len);
00052 
00053 #ifdef __cplusplus
00054 }
00055 #endif
00056 
00057 #endif  /* _HTP_BASE64_H */
00058