Adding upstream version 0.17.upstream/0.17

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 19 insertions, 12 deletions

diff --git a/common.cc b/common.cc
index 2e5d231..f4afd64 100644
--- a/common.cc
+++ b/common.cc
@@ -1,18 +1,18 @@
-/*  Tarlz - Archiver with multimember lzip compression
-    Copyright (C) 2013-2019 Antonio Diaz Diaz.
+/* Tarlz - Archiver with multimember lzip compression
+   Copyright (C) 2013-2020 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/>.
 */
 
 #define _FILE_OFFSET_BITS 64
@@ -28,6 +28,7 @@
 #include <stdint.h>
 #include <unistd.h>
 
+#include "arg_parser.h"
 #include "tarlz.h"
 
 
@@ -147,3 +148,9 @@ int writeblock( const int fd, const uint8_t * const buf, const int size )
     }
   return sz;
   }
+
+
+bool nonempty_arg( const Arg_parser & parser, const int i )
+  {
+  return ( parser.code( i ) == 0 && !parser.argument( i ).empty() );
+  }