/*
  *  Interface to libclamunrar
  *  Copyright (C) 2007 Sourcefire, Inc.
  *  Authors: Trog, Torok Edvin, Tomasz Kojm
  *
  *  This library is free software; you can redistribute it and/or
  *  modify it under the terms of the GNU Lesser General Public
  *  License version 2.1 as published by the Free Software Foundation.
  *
  *  This library is distributed in the hope that it will be useful,
  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  *  Lesser General Public License for more details.
  *
  *  You should have received a copy of the GNU Lesser General Public
  *  License along with this library; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA.
  */
 
 #ifndef __UNRAR_IFACE_H
 #define __UNRAR_IFACE_H
 
 #if HAVE_CONFIG_H
 #include "clamav-config.h"
 #endif
 

 #define unrar_open libclamunrar_iface_LTX_unrar_open
 #define unrar_extract_next_prepare libclamunrar_iface_LTX_unrar_extract_next_prepare
 #define unrar_extract_next libclamunrar_iface_LTX_unrar_extract_next
 #define unrar_close libclamunrar_iface_LTX_unrar_close
 

 #ifndef HAVE_ATTRIB_PACKED
 #define __attribute__(x)
 #endif
 

 #ifdef HAVE_PRAGMA_PACK
 #pragma pack(1)
 #endif
 
 #ifdef HAVE_PRAGMA_PACK_HPPA
 #pragma pack 1
 #endif
 

 #define UNRAR_OK	 0
 #define UNRAR_BREAK	 1

 #define UNRAR_PASSWD	 2

 #define UNRAR_EMEM	-1
 #define UNRAR_ERR	-2
 
 typedef struct unrar_comment_header_tag
 {
     uint16_t head_crc __attribute__ ((packed));
     uint8_t head_type;
     uint16_t flags __attribute__ ((packed));
     uint16_t head_size __attribute__ ((packed));
     uint16_t unpack_size __attribute__ ((packed));
     uint8_t unpack_ver;
     uint8_t method;
     uint16_t comm_crc __attribute__ ((packed));
 } unrar_comment_header_t;
 

 #define UNRAR_MAIN_HEADER_TAG_LEN 13

 typedef struct unrar_main_header_tag
 {
     uint16_t head_crc __attribute__ ((packed));
     uint8_t head_type;
     uint16_t flags __attribute__ ((packed));
     uint16_t head_size __attribute__ ((packed));
     uint16_t highposav __attribute__ ((packed));
     uint32_t posav __attribute__ ((packed));
 } unrar_main_header_t;
 
 typedef struct unrar_file_header_tag
 {
     uint16_t head_crc __attribute__ ((packed));
     uint8_t head_type;
     uint16_t flags __attribute__ ((packed));
     uint16_t head_size __attribute__ ((packed));
     uint32_t pack_size __attribute__ ((packed));
     uint32_t unpack_size __attribute__ ((packed));
     uint8_t host_os;
     uint32_t file_crc __attribute__ ((packed));
     uint32_t file_time __attribute__ ((packed));
     uint8_t unpack_ver;
     uint8_t method;
     uint16_t name_size __attribute__ ((packed));
     uint32_t file_attr __attribute__ ((packed));
     uint32_t high_pack_size __attribute__ ((packed));   /* optional */
     uint32_t high_unpack_size __attribute__ ((packed)); /* optional */
     unsigned char *filename __attribute__ ((packed));
     off_t start_offset __attribute__ ((packed));
     off_t next_offset __attribute__ ((packed));
 } unrar_fileheader_t;
 

 #ifdef HAVE_PRAGMA_PACK
 #pragma pack()
 #endif
 
 #ifdef HAVE_PRAGMA_PATCH_HPPA
 #pragma pack
 #endif
 

 typedef struct unrar_metadata_tag
 {
     uint64_t pack_size;
     uint64_t unpack_size;

     char *filename;
     struct unrar_metadata_tag *next;

     uint32_t crc;
     unsigned int encrypted;
     uint8_t method;
 } unrar_metadata_t;
 
 typedef struct unrar_state_tag {
     unrar_fileheader_t *file_header;
     unrar_metadata_t *metadata;
     unrar_metadata_t *metadata_tail;
     void *unpack_data;
     unrar_main_header_t *main_hdr;
     char *comment_dir;
     unsigned long file_count;

     uint64_t maxfilesize;

     int fd, ofd;
     char filename[1024];
 } unrar_state_t;
 

 int unrar_open(int fd, const char *dirname, unrar_state_t *state);
 int unrar_extract_next_prepare(unrar_state_t *state, const char *dirname);
 int unrar_extract_next(unrar_state_t *state, const char *dirname);
 void unrar_close(unrar_state_t *state);
 
 #endif