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