1 files changed, 124 insertions, 3 deletions
diff --git a/main.cpp b/main.cpp
index 23e4330..695fe7d 100644
--- a/main.cpp
+++ b/main.cpp
@@ -1,9 +1,130 @@
 #include <QCoreApplication>
-#include "daemon.h"
+#include <QFile>
+#include <QDebug>
+#include <errno.h>
+#include <unistd.h>
+#include <QStringList>
+
+#define PID_FILE "/data/user/.appcontroller"
+
+static void loadDefaults(QStringList &defaultArgs)
+{
+    QFile f("/system/bin/appdaemon.conf");
+
+    if (!f.open(QFile::ReadOnly)) {
+        qWarning("Could not read config file.");
+        return;
+    }
+
+    while (!f.atEnd()) {
+        QString line = f.readLine();
+        if (line.startsWith("env=")) {
+                QString sub = line.mid(4).simplified();
+                int index = sub.indexOf('=');
+                if (index < 2) {
+                    // ignore
+                } else {
+                    setenv(sub.left(index).toLocal8Bit().constData(), sub.mid(index+1).toLocal8Bit().constData(), 1);
+                    qDebug() << sub.left(index) << sub.mid(index+1);
+                }
+        } else if (line.startsWith("append=")) {
+              defaultArgs += line.mid(7).simplified();
+              qDebug() << defaultArgs;
+        }
+    }
+
+    // env=...
+    // append=...
+}
+
+static pid_t lastPID()
+{
+    QFile f(PID_FILE);
+    if (!f.open(QFile::ReadOnly)) {
+        qDebug() << "Could not open" << f.fileName();
+        return 0;
+    }
+    bool ok;
+    pid_t pid = f.readAll().toUInt(&ok);
+    f.close();
+    if (!ok)
+        qFatal("Invalid last PID.");
+
+    return pid;
+}
+
+static void stop()
+{
+    pid_t pid = lastPID();
+    if (pid == 0)
+        return;
+
+    int rc = ::kill(pid, SIGTERM);
+    if (rc != 0) {
+        if (errno == ESRCH)
+            return;
+        else
+            qFatal("Kill not permitted/invalid");
+    }
+
+    sleep(1);
+
+    rc = ::kill(pid, SIGKILL);
+    if (rc != 0) {
+        if (errno == ESRCH)
+            return;
+        else
+            qFatal("Kill not permitted/invalid");
+    }
+}
 
 int main(int argc, char **argv)
 {
     QCoreApplication app(argc, argv);
-    Daemon daemon;
-    return app.exec();
+    QStringList defaultArgs;
+    QString binary;
+
+    QStringList args = app.arguments();
+    args.removeFirst();
+    if (args.size() == 0)
+        qFatal("No arguments given.");
+
+    while (!args.isEmpty()) {
+        if (args[0] == "--start") {
+            if (args.size() < 2) {
+                qFatal("--start requires and argument");
+            }
+            binary = args[1];
+            args.removeFirst();
+            if (binary.isEmpty())
+                qFatal("App path is empty");
+            stop();
+            loadDefaults(defaultArgs);
+        } else if (args[0] == "--stop") {
+            stop();
+            return 0;
+        } else {
+            qFatal("unknown argument: %s", args.first().toLocal8Bit().constData());
+        }
+        args.removeFirst();
+    }
+
+    defaultArgs.push_front(binary);
+
+    char **arglist = new char*[defaultArgs.size()+1];
+    for (int i = 0; i < defaultArgs.size(); i++) {
+        arglist[i] = strdup(defaultArgs[i].toLocal8Bit().constData());
+    }
+    arglist[defaultArgs.size()] = 0;
+    defaultArgs.clear();
+
+    QFile f(PID_FILE);
+    if (!f.open(QFile::WriteOnly))
+        qDebug() << "Could not write PID";
+    f.write(QString::number(getpid()).toLatin1());
+    f.close();
+
+    execv(binary.toLocal8Bit().constData(), arglist);
+
+    return 0;
 }