1 files changed, 94 insertions, 0 deletions
diff --git a/htp/htp_decompressors.h b/htp/htp_decompressors.h
new file mode 100644
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+++ b/htp/htp_decompressors.h
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+/***************************************************************************
+ * Copyright (c) 2009-2010 Open Information Security Foundation
+ * Copyright (c) 2010-2013 Qualys, Inc.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ * 
+ * - Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+
+ * - Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+
+ * - Neither the name of the Qualys, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from
+ *   this software without specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ ***************************************************************************/
+
+/**
+ * @file
+ * @author Ivan Ristic <ivanr@webkreator.com>
+ */
+
+#ifndef _HTP_DECOMPRESSORS_H
+#define	_HTP_DECOMPRESSORS_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <zlib.h>
+#include "lzma/LzmaDec.h"
+
+typedef struct htp_decompressor_gzip_t htp_decompressor_gzip_t;
+typedef struct htp_decompressor_t htp_decompressor_t;
+
+#define GZIP_BUF_SIZE           8192
+
+#define DEFLATE_MAGIC_1         0x1f
+#define DEFLATE_MAGIC_2         0x8b
+
+struct htp_decompressor_t {
+    // no longer used
+    htp_status_t (*decompress)(htp_decompressor_t *, htp_tx_data_t *);
+    htp_status_t (*callback)(htp_tx_data_t *);
+    // no longer used
+    void (*destroy)(htp_decompressor_t *);
+    struct htp_decompressor_t *next;
+    struct timeval time_before;
+    int32_t time_spent;
+    uint32_t nb_callbacks;
+    uint8_t passthrough;    /**< decompression failed, pass through raw data */
+};
+
+struct htp_decompressor_gzip_t {
+    htp_decompressor_t super;
+    #if 0
+    int initialized;
+    #endif
+    int zlib_initialized;
+    uint8_t restart;    /**< deflate restarted to try rfc1950 instead of 1951 */
+    z_stream stream;
+    uint8_t header[LZMA_PROPS_SIZE + 8];
+    uint8_t header_len;
+    CLzmaDec state;
+    unsigned char *buffer;
+    unsigned long crc;    
+};
+
+htp_decompressor_t *htp_gzip_decompressor_create(htp_connp_t *connp, enum htp_content_encoding_t format);
+htp_status_t htp_gzip_decompressor_decompress(htp_decompressor_t *drec, htp_tx_data_t *d);
+void htp_gzip_decompressor_destroy(htp_decompressor_t *drec);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif	/* _HTP_DECOMPRESSORS_H */
+