VPN Status

Ping.cpp

@@ -0,0 +1,78 @@
+#include <QAbstractSocket>
+#include <QHostAddress>
+#include <QTextStream>
+#include <QHostInfo>
+#include <QList>
+#include "Ping.h"
+
+extern "C" {
+#include "oping.h"
+}
+
+double Ping::ping(const QString &host, int tries, double timeout)
+{
+    double latency;
+    pingobj_t *pingObj;
+    pingobj_iter_t *pingIter;
+    if ((pingObj = ping_construct()) == NULL) {
+        QTextStream(stderr) << "Ping construction failed " << endl;
+        return -1;
+    }
+    if (ping_setopt(pingObj, PING_OPT_TIMEOUT, (void*)(&timeout)) < 0) {
+        QTextStream(stderr) << "Setting timeout to"  << timeout << " have failed" << endl;
+        ping_destroy(pingObj);
+        return -1;
+    }
+    QHostAddress hostAddress(host);
+    if (QAbstractSocket::IPv4Protocol == hostAddress.protocol()) {
+        if (ping_host_add(pingObj, hostAddress.toString().toStdString().c_str()) < 0) {
+            ping_destroy(pingObj);
+            return -1;
+        }
+    }
+    else if (QAbstractSocket::IPv6Protocol == hostAddress.protocol()) {
+        if (ping_host_add(pingObj, hostAddress.toString().toStdString().c_str()) < 0) {
+            ping_destroy(pingObj);
+            return -1;
+        }
+    }
+    else {
+        QList<QHostAddress> hostAddresses = QHostInfo::fromName(host).addresses();
+        if (hostAddresses.length() >= 1) {
+            QString ipStr = hostAddresses.at(0).toString();
+            if (ping_host_add(pingObj, ipStr.toStdString().c_str()) < 0) {
+                ping_destroy(pingObj);
+                return -1;
+            }
+        }
+        else {
+            ping_destroy(pingObj);
+            return -1;
+        }
+    }
+    bool hostUp = false;
+    int curTry = 0;
+    while (!hostUp && curTry != tries) {
+        if (ping_send(pingObj) < 0) {
+            QTextStream(stderr) << "Pinging host " << host << " has failed" << endl;
+            ping_destroy(pingObj);
+            return -1;
+        }
+        bool pingSuccess = false;
+        for (pingIter = ping_iterator_get(pingObj); pingIter != NULL; pingIter =
+             ping_iterator_next(pingIter)) {
+            size_t len;
+            len = sizeof(double);
+            ping_iterator_get_info(pingIter, PING_INFO_LATENCY, &latency, &len);
+            pingSuccess = !(latency < 0);
+        }
+        if (pingSuccess) {
+            hostUp = true;
+        }
+        curTry++;
+    }
+    ping_destroy(pingObj);
+    if (hostUp)
+        return latency;
+    return -1;
+}