summaryrefslogtreecommitdiffstats
path: root/common.h
diff options
context:
space:
mode:
Diffstat (limited to '')
-rw-r--r--common.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/common.h b/common.h
new file mode 100644
index 0000000..c3d0691
--- /dev/null
+++ b/common.h
@@ -0,0 +1,43 @@
+/* Lziprecover - Data recovery tool for the lzip format
+ Copyright (C) 2009-2022 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 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/>.
+*/
+
+struct Bad_byte
+ {
+ enum Mode { literal, delta, flip };
+ long long pos;
+ const char * option_name;
+ Mode mode;
+ uint8_t value;
+
+ Bad_byte() : pos( -1 ), option_name( 0 ), mode( literal ), value( 0 ) {}
+ uint8_t operator()( const uint8_t old_value ) const
+ {
+ if( mode == delta ) return old_value + value;
+ if( mode == flip ) return old_value ^ value;
+ return value;
+ }
+
+ void parse_bb( const char * const arg, const char * const pn );
+ };
+
+
+// defined in main_common.cc
+void show_error( const char * const msg, const int errcode = 0,
+ const bool help = false );
+void show_file_error( const char * const filename, const char * const msg,
+ const int errcode = 0 );
+void internal_error( const char * const msg );