diff options
Diffstat (limited to 'lzip_index.h')
| -rw-r--r-- | lzip_index.h | 42 |
1 files changed, 25 insertions, 17 deletions
diff --git a/lzip_index.h b/lzip_index.h index d4f2ef9..717c06c 100644 --- a/lzip_index.h +++ b/lzip_index.h @@ -1,18 +1,18 @@ -/* Lziprecover - Data recovery tool for the lzip format - Copyright (C) 2009-2019 Antonio Diaz Diaz. +/* Lziprecover - Data recovery tool for the lzip format + Copyright (C) 2009-2021 Antonio Diaz Diaz. - This program is free software: you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation, either version 2 of the License, or - (at your option) any later version. + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 2 of the License, or + (at your option) any later version. - This program 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 General Public License for more details. + This program 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 General Public License for more details. - You should have received a copy of the GNU General Public License - along with this program. If not, see <http://www.gnu.org/licenses/>. + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ class Lzip_index @@ -30,21 +30,28 @@ class Lzip_index bool operator!=( const Member & m ) const { return ( mblock != m.mblock ); } }; - // member_vector only contains good members. + // member_vector only contains members with a valid header. // Garbage between members is represented by gaps between mblocks. std::vector< Member > member_vector; std::string error_; long long insize; int retval_; + unsigned dictionary_size_; // largest dictionary size in the file + bool check_header_error( const Lzip_header & header, + const bool ignore_bad_ds ); void set_errno_error( const char * const msg ); void set_num_error( const char * const msg, unsigned long long num ); - bool skip_gap( const int fd, long long & pos, - const bool ignore_trailing, const bool loose_trailing, - const bool ignore_bad_ds, const bool ignore_gaps ); + bool read_header( const int fd, Lzip_header & header, const long long pos ); + bool read_trailer( const int fd, Lzip_trailer & trailer, + const long long pos ); + bool skip_gap( const int fd, unsigned long long & pos, + const bool ignore_trailing, const bool loose_trailing, + const bool ignore_bad_ds, const bool ignore_gaps ); public: - Lzip_index() : error_( "No index" ), insize( 0 ), retval_( 2 ) {} + Lzip_index() + : error_( "No index" ), insize( 0 ), retval_( 2 ), dictionary_size_( 0 ) {} Lzip_index( const int infd, const bool ignore_trailing, const bool loose_trailing, const bool ignore_bad_ds = false, const bool ignore_gaps = false, const long long max_pos = 0 ); @@ -54,6 +61,7 @@ public: long blocks( const bool count_tdata ) const; // members + gaps [+ tdata] const std::string & error() const { return error_; } int retval() const { return retval_; } + unsigned dictionary_size() const { return dictionary_size_; } bool operator==( const Lzip_index & li ) const { |