From 37333bf25ad9a4c538250f5af2f9f1d666362883 Mon Sep 17 00:00:00 2001
From: toma <toma@283d02a7-25f6-0310-bc7c-ecb5cbfe19da>
Date: Wed, 25 Nov 2009 17:56:58 +0000
Subject: Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.
 BUG:215923

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdeadmin@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da
---
 kdat/TarParser.cpp | 117 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 kdat/TarParser.cpp

(limited to 'kdat/TarParser.cpp')

diff --git a/kdat/TarParser.cpp b/kdat/TarParser.cpp
new file mode 100644
index 0000000..4529d64
--- /dev/null
+++ b/kdat/TarParser.cpp
@@ -0,0 +1,117 @@
+// KDat - a tar-based DAT archiver
+// Copyright (C) 1998-2000  Sean Vyain, svyain@mail.tds.net
+// Copyright (C) 2001-2002  Lawrence Widman, kdat@cardiothink.com
+//
+// 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, write to the Free Software
+// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+#include "TarParser.h"
+
+#include "TarParser.moc"
+
+TarParser::TarParser()
+        : _bufIdx( 0 ),
+          _blocksToSkip( 0 ),
+          _record( 0 ),
+          _longname( FALSE ),
+          _extended( FALSE ),
+          _archnameIdx( 0 )
+{
+}
+
+void TarParser::slotData( const char * data, int length )
+{
+    for ( int i = 0; i < length; i++ ) {
+        if ( _bufIdx >= 512 ) {
+            if ( _blocksToSkip > 0 ) {
+                if ( _extended ) {
+                    record* rec = (record*)_buf;
+                    _extended = rec->ext_hdr.isextended;
+                } else {
+                    _blocksToSkip--;
+                    if ( _longname ) {
+                        memcpy( _archname + _archnameIdx, _buf, 512 );
+                        _archnameIdx += 512;
+                    }
+                }
+            } else {
+                parseTarBlock();
+            }
+            _bufIdx = 0;
+            _record++;
+        }
+        _buf[_bufIdx++] = data[i];
+    }
+}
+
+int TarParser::parseOctal( const char* buf, int length )
+{
+    int val = 0;
+    
+    for ( int i = 0; i < length; i++ ) {
+        val *= 8;
+        if ( ( buf[i] >= '1' ) && ( buf[i] <= '7' ) ) {
+            val += buf[i] - '0';
+        }
+    }
+
+    return val;
+}
+
+void TarParser::parseTarBlock()
+{
+    record* rec = (record*)_buf;
+
+#if 0
+    printf( "----- parsing tar block -----\n" );
+    printf( "arch_name     = '%s'\n", rec->header.arch_name );
+    printf( "mode          = '%s'\n", rec->header.mode );
+    printf( "uid           = %d\n", parseOctal( rec->header.uid, 6 ) );
+    printf( "gid           = %d\n", parseOctal( rec->header.gid, 6 ) );
+    printf( "size          = %d\n", parseOctal( rec->header.size, 11 ) );
+    printf( "mtime         = %d\n", parseOctal( rec->header.mtime, 11 ) );
+    printf( "chksum        = '%s'\n", rec->header.chksum );
+    printf( "linkflag      = '%c'\n", rec->header.linkflag );
+    printf( "arch_linkname = '%s'\n", rec->header.arch_linkname );
+    printf( "magic         = '%s'\n", rec->header.magic );
+    printf( "uname         = '%s'\n", rec->header.uname );
+    printf( "gname         = '%s'\n", rec->header.gname );
+    printf( "devmajor      = %d\n", parseOctal( rec->header.devmajor, 8 ) );
+    printf( "devminor      = %d\n", parseOctal( rec->header.devminor, 8 ) );
+    printf( "atime         = %d\n", parseOctal( rec->header.atime, 11 ) );
+    printf( "ctime         = %d\n", parseOctal( rec->header.ctime, 11 ) );
+    printf( "offset        = %d\n", parseOctal( rec->header.offset, 11 ) );
+    printf( "longnames     = '%s'\n", rec->header.longnames );
+    printf( "isextended    = %d\n", rec->header.isextended );
+    printf( "realsize      = %d\n", parseOctal( rec->header.realsize, 11 ) );
+#endif
+
+    if ( rec->header.magic[0] != 0 ) {
+        _blocksToSkip = ( parseOctal( rec->header.size, 11 ) + 511 ) / 512;
+        _extended = rec->header.isextended;
+
+        if ( rec->header.linkflag == LF_LONGNAME ) {
+            // The actual file name is stored in the next _blocksToSkip blocks of the tar-file.
+            _longname = TRUE;
+            _archnameIdx = 0;
+        } else {
+            if ( _longname ) {
+                _longname = FALSE;
+                emit sigEntry( _archname, parseOctal( rec->header.size, 11 ), parseOctal( rec->header.mtime, 11 ), _record );
+            } else {
+                emit sigEntry( rec->header.arch_name, parseOctal( rec->header.size, 11 ), parseOctal( rec->header.mtime, 11 ), _record );
+            }
+        }
+    }
+}
-- 
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