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path: root/rsync/qrsync.cpp
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-rw-r--r--rsync/qrsync.cpp110
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
+ }
+
+}