HTP
0.3
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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 #ifndef _HTP_DECOMPRESSORS_H 00024 #define _HTP_DECOMPRESSORS_H 00025 00026 typedef struct htp_decompressor_gzip_t htp_decompressor_gzip_t; 00027 typedef struct htp_decompressor_t htp_decompressor_t; 00028 00029 #include "zlib.h" 00030 00031 #define GZIP_BUF_SIZE 8192 00032 #define GZIP_WINDOW_SIZE -15 00033 00034 #define DEFLATE_MAGIC_1 0x1f 00035 #define DEFLATE_MAGIC_2 0x8b 00036 00037 #define COMPRESSION_NONE 0 00038 #define COMPRESSION_GZIP 1 00039 #define COMPRESSION_DEFLATE 2 00040 00041 #ifdef __cplusplus 00042 extern "C" { 00043 #endif 00044 00045 struct htp_decompressor_t { 00046 int (*decompress)(htp_decompressor_t *, htp_tx_data_t *); 00047 int (*callback)(htp_tx_data_t *); 00048 void (*destroy)(htp_decompressor_t *); 00049 }; 00050 00051 struct htp_decompressor_gzip_t { 00052 htp_decompressor_t super; 00053 int initialized; 00054 int zlib_initialized; 00055 uint8_t header[10]; 00056 uint8_t header_len; 00057 z_stream stream; 00058 unsigned char *buffer; 00059 unsigned long crc; 00060 }; 00061 00062 htp_decompressor_t * htp_gzip_decompressor_create(htp_connp_t *connp, int format); 00063 00064 #ifdef __cplusplus 00065 } 00066 #endif 00067 00068 #endif /* _HTP_DECOMPRESSORS_H */ 00069