00001 /*************************************************************************** 00002 * Copyright (c) 2009-2010 Open Information Security Foundation 00003 * Copyright (c) 2010-2013 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 00013 * - Redistributions in binary form must reproduce the above copyright 00014 * notice, this list of conditions and the following disclaimer in the 00015 * documentation and/or other materials provided with the distribution. 00016 00017 * - Neither the name of the Qualys, Inc. nor the names of its 00018 * contributors may be used to endorse or promote products derived from 00019 * this software without specific prior written permission. 00020 * 00021 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 00022 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 00023 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 00024 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 00025 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 00026 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 00027 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 00028 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 00029 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 00030 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 00031 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 00032 ***************************************************************************/ 00033 00039 /* Adapted from the libb64 project (http://sourceforge.net/projects/libb64), which is in public domain. */ 00040 00041 #ifndef _HTP_BASE64_H 00042 #define _HTP_BASE64_H 00043 00044 #ifdef __cplusplus 00045 extern "C" { 00046 #endif 00047 00048 #include "bstr.h" 00049 00050 typedef enum { 00051 step_a, step_b, step_c, step_d 00052 } htp_base64_decodestep; 00053 00054 typedef struct { 00055 htp_base64_decodestep step; 00056 char plainchar; 00057 } htp_base64_decoder; 00058 00059 void htp_base64_decoder_init(htp_base64_decoder *state_in); 00060 00061 int htp_base64_decode_single(signed char value_in); 00062 00063 int htp_base64_decode(htp_base64_decoder *decoder, const void *code_in, int length_in, void *plaintext_out, int length_out); 00064 00065 bstr *htp_base64_decode_bstr(bstr *input); 00066 00067 bstr *htp_base64_decode_mem(const void *data, size_t len); 00068 00069 #ifdef __cplusplus 00070 } 00071 #endif 00072 00073 #endif /* _HTP_BASE64_H */ 00074