1 files changed, 110 insertions, 0 deletions
diff --git a/rsync/qrsync.cpp b/rsync/qrsync.cpp
new file mode 100644
index 0000000..fe5f1bc
--- a/dev/null
+++ b/rsync/qrsync.cpp
@@ -0,0 +1,110 @@
+#include "qrsync.h"
+#include <stdio.h>
+extern "C" {
+#include "rsync.h"
+}
+#include <stdlib.h>
+
+#include <qfile.h>
+
+static const char *rdiffNewFile = "/tmp/rdiff/result";
+static size_t block_len = RS_DEFAULT_BLOCK_LEN;
+static size_t strong_len = RS_DEFAULT_STRONG_LEN;
+
+
+void QRsync::generateSignature( QString baseFile, QString sigFile )
+{
+    
+    if ( QFile::exists( baseFile ) ) {
+	FILE *basis_file, *sig_file;
+	rs_result       result;
+	    
+	basis_file = fopen( baseFile.latin1(), "rb" );
+	sig_file = fopen( sigFile.latin1(), "wb" );
+
+	result = rs_sig_file(basis_file, sig_file, block_len, strong_len, 0);
+
+	fclose( basis_file );
+	fclose( sig_file );
+	if (result != RS_DONE)
+	    printf("error in rdiffGenSig: %d", result );
+    }
+}
+
+
+void QRsync::generateDiff( QString baseFile, QString sigFile, QString deltaFile )
+{
+    if ( QFile::exists( baseFile ) && QFile::exists( sigFile ) ) {
+	FILE            *sig_file, *new_file, *delta_file;
+	rs_result       result;
+	rs_signature_t  *sumset;
+
+	sig_file = fopen(sigFile.latin1(), "rb");
+	new_file = fopen(baseFile.latin1(), "rb");
+	delta_file = fopen(deltaFile.latin1(), "wb");
+
+	result = rs_loadsig_file(sig_file, &sumset, 0);
+	if (result != RS_DONE) {
+	    qDebug( "rdiffGenDiff: loading of sig file failed, error=%d", result );
+	} else {
+	    result = rs_build_hash_table(sumset);
+	    if ( result != RS_DONE) {
+		qDebug( "rdiffGenDiff: building of hash table failed, error=%d", result );
+	    } else {
+		result = rs_delta_file(sumset, new_file, delta_file, 0);
+		if ( result != RS_DONE) {
+		    qDebug( "rdiffGenDiff: writing of diff file failed, error=%d", result );
+		}
+	    }
+	}
+	
+	if ( sumset )
+	    rs_free_sumset( sumset );
+	fclose( new_file );
+	fclose( delta_file );
+	fclose( sig_file );
+
+    }
+}
+
+void QRsync::applyDiff( QString baseFile, QString deltaFile )
+{
+    if ( QFile::exists( baseFile ) && QFile::exists( deltaFile ) ) {
+	FILE               *basis_file, *delta_file, *new_file;
+	rs_result           result;
+
+	basis_file = fopen(baseFile.latin1(), "rb");
+	delta_file = fopen(deltaFile.latin1(), "rb");
+#ifdef Q_WS_WIN
+	new_file = fopen( (baseFile + ".new").latin1(), "wb" );
+#else
+	new_file =   fopen(rdiffNewFile, "wb");
+#endif	
+
+	result = rs_patch_file(basis_file, delta_file, new_file, 0);
+
+	fclose( basis_file );
+	fclose( delta_file );
+	fclose( new_file );
+
+	if (result != RS_DONE) {
+	    qDebug( "rdiffApplyDiff failed with result %d", result );
+	    return;
+	}
+
+
+#ifdef Q_WS_WIN	
+	QDir dir;
+	QFile backup = baseFile + "~";
+	dir.rename( baseFile, backup );
+	dir.rename( (baseFile + ".new"), baseFile );
+	dir.remove( backup );
+#else
+	QString cmd = "mv ";
+	cmd += rdiffNewFile;
+	cmd += " " + baseFile;
+	system( cmd.latin1() );
+#endif
+    }
+
+}