1 files changed, 61 insertions, 0 deletions
diff --git a/vespalog/src/main/java/com/yahoo/log/Util.java b/vespalog/src/main/java/com/yahoo/log/Util.java
new file mode 100644
index 00000000000..062d6acf960
--- /dev/null
+++ b/vespalog/src/main/java/com/yahoo/log/Util.java
@@ -0,0 +1,61 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+package com.yahoo.log;
+
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.InetAddress;
+
+/**
+ *
+ * @author  Bjorn Borud
+ * @author arnej27959
+ *
+ */
+public class Util {
+
+    /**
+     * We do not have direct access to the <code>gethostname</code>
+     * system call, so we have to fake it.
+     */
+    public static String getHostName () {
+        String hostname = "-";
+        try {
+            Process p = Runtime.getRuntime().exec("hostname");
+            BufferedReader r = new BufferedReader(
+                    new InputStreamReader(p.getInputStream(), "UTF-8"));
+            hostname = r.readLine();
+            if (hostname != null) {
+                return hostname;
+            }
+        }
+        catch (java.io.IOException e) {}
+        try {
+            hostname = InetAddress.getLocalHost().getHostName();
+            return hostname;
+        }
+        catch (java.net.UnknownHostException e) {}
+        return "-";
+    }
+
+    /**
+     * Emulate the getpid() system call
+     **/
+    public static String getPID() {
+        try {
+            Process p = Runtime.getRuntime().exec(
+                    new String[] {"perl", "-e", "print getppid().\"\\n\";"}
+            );
+            BufferedReader r = new BufferedReader(
+                    new InputStreamReader(p.getInputStream(), "UTF-8"));
+            String line = r.readLine();
+            p.destroy();
+            int pid = Integer.parseInt(line);
+            if (pid > 0) {
+                return Integer.toString(pid);
+            }
+        } catch(Exception e) {
+            // any problem handled by return below
+        }
+        return "-";
+    }
+}