1 files changed, 54 insertions, 0 deletions
diff --git a/exclude.cc b/exclude.cc
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index 0000000..99491ca
--- /dev/null
+++ b/exclude.cc
@@ -0,0 +1,54 @@
+/* Tarlz - Archiver with multimember lzip compression
+   Copyright (C) 2013-2022 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/>.
+*/
+
+#define _FILE_OFFSET_BITS 64
+
+#include <cstdlib>
+#include <fnmatch.h>
+
+#include "tarlz.h"
+
+
+namespace Exclude {
+
+std::vector< std::string > patterns;		// list of patterns
+
+} // end namespace Exclude
+
+
+void Exclude::add_pattern( const std::string & arg )
+  { patterns.push_back( arg ); }
+
+
+bool Exclude::excluded( const char * const filename )
+  {
+  if( patterns.empty() ) return false;
+  const char * p = filename;
+  do {
+    for( unsigned i = 0; i < patterns.size(); ++i )
+      // ignore a trailing sequence starting with '/' in filename
+#ifdef FNM_LEADING_DIR
+      if( fnmatch( patterns[i].c_str(), p, FNM_LEADING_DIR ) == 0 ) return true;
+#else
+      if( fnmatch( patterns[i].c_str(), p, 0 ) == 0 ||
+          fnmatch( ( patterns[i] + "/*" ).c_str(), p, 0 ) == 0 ) return true;
+#endif
+    while( *p && *p != '/' ) ++p;		// skip component
+    while( *p == '/' ) ++p;			// skip slashes
+    } while( *p );
+  return false;
+  }