From f3a965524eae344fbd25ba486e9fa32e1262fcc4 Mon Sep 17 00:00:00 2001
From: Christoph Egger <christoph@christoph-egger.org>
Date: Fri, 23 May 2014 18:20:38 +0200
Subject: [PATCH] Allow opening of binary via comman argument

---
 src/gui/Mainwindow.cxx | 12 +++++++++---
 src/gui/Mainwindow.hxx |  4 +++-
 src/main.cxx           | 18 +++++++++++-------
 3 files changed, 23 insertions(+), 11 deletions(-)

diff --git a/src/gui/Mainwindow.cxx b/src/gui/Mainwindow.cxx
index 061734a..fd0c245 100644
--- a/src/gui/Mainwindow.cxx
+++ b/src/gui/Mainwindow.cxx
@@ -8,7 +8,7 @@
 
 #include <QtGui>
 
-Mainwindow::Mainwindow()
+Mainwindow::Mainwindow(const std::string& filename)
 {
     openAction = new QAction(tr("&Open"), this);
     // saveAction = new QAction(tr("&Save"), this);
@@ -37,6 +37,8 @@ Mainwindow::Mainwindow()
             stackedWidget, SLOT(setCurrentIndex(int)));
 
     setWindowTitle(tr("Notepad"));
+
+	openBinary(filename);
 }
 
 void Mainwindow::quit()
@@ -54,8 +56,12 @@ void Mainwindow::open() {
     QString fileName = QFileDialog::getOpenFileName(this, tr("Open File"), "",
                                                     tr("Binaries (*)"));
 
-    if (fileName != "") {
-        disassembler.reset(new LLVMDisassembler(fileName.toStdString()));
+	openBinary(fileName.toStdString());
+}
+
+void Mainwindow::openBinary(const std::string& filename) {
+    if (filename != "") {
+        disassembler.reset(new LLVMDisassembler(filename));
         // curBin = new Binary(fileName.toStdString());
 
         // std::vector<std::string> symbols = curBin->getSymbols();
diff --git a/src/gui/Mainwindow.hxx b/src/gui/Mainwindow.hxx
index adfe71e..3892ebd 100644
--- a/src/gui/Mainwindow.hxx
+++ b/src/gui/Mainwindow.hxx
@@ -10,8 +10,10 @@
 class Mainwindow : public QMainWindow {
     Q_OBJECT
 public:
-    Mainwindow();
+    Mainwindow(const std::string& filename = "");
 private:
+	void openBinary(const std::string& filename);
+
     void populateSymbolInformation(const std::string& sym);
 
     QTextEdit *textEdit;
diff --git a/src/main.cxx b/src/main.cxx
index 0ce89ab..74d1325 100644
--- a/src/main.cxx
+++ b/src/main.cxx
@@ -21,6 +21,16 @@ int main(int argc, char** argv)
     log4cxx::BasicConfigurator::configure();
     log4cxx::LoggerPtr _logger(log4cxx::Logger::getLogger("main"));
 
+	QCommandLineParser parser;
+
+	QApplication::setApplicationName("frida");
+	parser.addHelpOption();
+	parser.addVersionOption();
+	parser.addPositionalArgument("filename", QCoreApplication::translate("main", "File to disassemble."));
+
+	QApplication app(argc, argv);
+	parser.process(app);
+
     LOG4CXX_DEBUG(_logger, "Initializing LLVM");
     llvm::InitializeAllTargetInfos();
     llvm::InitializeAllTargetMCs();
@@ -28,14 +38,8 @@ int main(int argc, char** argv)
     llvm::InitializeAllDisassemblers();
 
     LOG4CXX_DEBUG(_logger, "Initializing Qt");
-    QApplication app(argc, argv);
-	QCommandLineParser parser;
-
-	QApplication::setApplicationName("frida");
-	parser.addHelpOption();
-	parser.process(app);
 
-    Mainwindow m;
+    Mainwindow m(parser.positionalArguments().at(0).toStdString());
     m.show();
 
     return app.exec();
-- 
2.39.2