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
+    }
+
+}