HTP  0.3
htp_base64.h
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00001 /***************************************************************************
00002  * Copyright (c) 2009-2010, Open Information Security Foundation
00003  * Copyright (c) 2009-2012, Qualys, Inc.
00004  * All rights reserved.
00005  * 
00006  * Redistribution and use in source and binary forms, with or without
00007  * modification, are permitted provided that the following conditions are
00008  * met:
00009  * 
00010  * * Redistributions of source code must retain the above copyright
00011  * notice, this list of conditions and the following disclaimer.
00012  * * Redistributions in binary form must reproduce the above copyright
00013  * notice, this list of conditions and the following disclaimer in the
00014  * documentation and/or other materials provided with the distribution.
00015  * * Neither the name of the Qualys, Inc. nor the names of its
00016  * contributors may be used to endorse or promote products derived from
00017  * this software without specific prior written permission.
00018  * 
00019  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
00020  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
00021  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
00022  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
00023  * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
00024  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
00025  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
00026  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
00027  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00028  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
00029  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00030  ***************************************************************************/
00031 
00037 /* Adapted from the libb64 project (http://sourceforge.net/projects/libb64), which is in public domain. */
00038 
00039 #ifndef _HTP_BASE64_H
00040 #define _HTP_BASE64_H
00041 
00042 #include "bstr.h"
00043 
00044 #ifdef __cplusplus
00045 extern "C" {
00046 #endif
00047 
00048 typedef enum {
00049     step_a, step_b, step_c, step_d
00050 } htp_base64_decodestep;
00051 
00052 typedef struct {
00053     htp_base64_decodestep step;
00054     char plainchar;
00055 } htp_base64_decoder;
00056 
00057 void htp_base64_decoder_init(htp_base64_decoder* state_in);
00058 
00059 int htp_base64_decode_single(char value_in);
00060 
00061 int htp_base64_decode(htp_base64_decoder* decoder, const char* code_in, const int length_in,
00062     char* plaintext_out, const int length_out);
00063 
00064 bstr *htp_base64_decode_bstr(bstr *input);
00065 bstr *htp_base64_decode_mem(const char *data, size_t len);
00066 
00067 #ifdef __cplusplus
00068 }
00069 #endif
00070 
00071 #endif  /* _HTP_BASE64_H */
00072