Add launch process info

nmf-view/ProcessInfo.cs

@@ -0,0 +1,74 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT License.
+// Modified from https://github.com/PowerShell/PowerShell/blob/3dc95ced87d38c347a9fc3a222eb4c52eaad4615/src/System.Management.Automation/engine/ProcessCodeMethods.cs
+using System;
+using System.Diagnostics;
+using System.Runtime.InteropServices;
+
+namespace nmf_view
+{
+    /// <summary>
+    /// Helper functions for process info.
+    /// </summary>
+    public static class ProcessInfo
+    {
+        [StructLayout(LayoutKind.Sequential)]
+        internal class PROCESS_BASIC_INFORMATION
+        {
+            public int ExitStatus = 0;
+            public IntPtr PebBaseAddress = (IntPtr)0;
+            public IntPtr AffinityMask = (IntPtr)0;
+            public int BasePriority = 0;
+            public IntPtr UniqueProcessId = (IntPtr)0;
+            public IntPtr InheritedFromUniqueProcessId = (IntPtr)0;
+        }
+
+        [DllImport("ntdll.dll", SetLastError = true)]
+        internal static extern int NtQueryInformationProcess(IntPtr processHandle, int query, PROCESS_BASIC_INFORMATION info, int size, int[] returnedSize);
+
+        private const int InvalidProcessId = -1;
+
+        internal static Process GetParent(this Process process)
+        {
+            try
+            {
+                var pid = GetParentPid(process);
+                if (pid == InvalidProcessId)
+                {
+                    return null;
+                }
+
+                var candidate = Process.GetProcessById(pid);
+
+                // if the candidate was started later than process, the pid has been recycled
+                return candidate.StartTime > process.StartTime ? null : candidate;
+            }
+            catch (Exception)
+            {
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// CodeMethod for getting the parent process of a process.
+        /// </summary>
+        /// <param name="process">The process whose parent should be returned</param>
+        /// <returns>The parent process, or null if the parent is no longer running.</returns>
+        public static object GetParentProcess(Process process)
+        {
+            return process?.GetParent();
+        }
+
+        /// <summary>
+        /// Returns the parent id of a process or -1 if it fails.
+        /// </summary>
+        /// <param name="process"></param>
+        /// <returns>The pid of the parent process.</returns>
+        internal static int GetParentPid(Process process)
+        {
+            PROCESS_BASIC_INFORMATION pbi = new PROCESS_BASIC_INFORMATION();
+            int status = NtQueryInformationProcess(process.Handle, 0, pbi, (int)Marshal.SizeOf(pbi), null);
+            return status != 0 ? InvalidProcessId : pbi.InheritedFromUniqueProcessId.ToInt32();
+        }
+    }
+}

nmf-view/Properties/AssemblyInfo.cs

@@ -10,7 +10,10 @@
 [assembly: AssemblyTrademark("")]
 [assembly: AssemblyCulture("")]
 [assembly: ComVisible(false)]
-[assembly: AssemblyVersion("1.0.6.0")]
+[assembly: AssemblyVersion("1.0.7.0")]
+
+// v1.0.7
+// Display the invoking process' name and PID
 
 // v1.0.6
 // Add support for 'logstderr' filename token

nmf-view/frmMain.cs

@@ -79,6 +79,7 @@ struct app_state
             public Stream strmToApp;
             public Stream strmFromExt;
             public Stream strmToExt;
+            public Process procParent;
         }
 
         static app_state oSettings;
@@ -508,8 +509,15 @@ private void CloseLogfile()
 
         private void frmMain_Load(object sender, EventArgs e)
         {
-            Trace.WriteLine("NMF-View was started with the command line: " + Environment.CommandLine);
-            Console.Error.WriteLine("****\n**** NMF-View was started with the command line: " + Environment.CommandLine + "\n****");
+            oSettings.procParent = ProcessInfo.GetParent(Process.GetCurrentProcess());
+
+            {
+                string sStartupInfo = $"NMF-View was started with the command line: {Environment.CommandLine} by " +
+                    ((null == oSettings.procParent) ? " an unknown parent." : oSettings.procParent.ProcessName + "(" + oSettings.procParent.Id.ToString() + ")");
+                Trace.WriteLine(sStartupInfo);
+                Console.Error.WriteLine($"****\n**** {sStartupInfo}\n****");
+            }
+
             // Configure default options.
             clbOptions.SetItemChecked(2, true); // Propagate closures
             clbOptions.SetItemChecked(3, true); // Record bodies
@@ -523,7 +531,7 @@ private void frmMain_Load(object sender, EventArgs e)
             if (sCurrentExe.Contains(".immortal.")) clbOptions.SetItemChecked(5, true);
 
             string sExtraInfo = $" [{Path.GetFileName(Application.ExecutablePath)}:{Process.GetCurrentProcess().Id}{(Utilities.IsUserAnAdmin() ? " Elevated" : String.Empty)}]";
-            log($"I am{sExtraInfo}");
+            log($"I am{sExtraInfo}, launched by [{((null != oSettings.procParent) ? (oSettings.procParent.ProcessName + ':' + oSettings.procParent.Id) : "unknown")}].");
             lblVersion.Text = $"v{Application.ProductVersion} [{((8 == IntPtr.Size) ? "64" : "32")}-bit]";
             Text += sExtraInfo;  // Append extra info to form caption.
 
@@ -559,7 +567,6 @@ private void frmMain_Load(object sender, EventArgs e)
                     log($"parent-window: {oSettings.iParentWindow:x8} {((oSettings.iParentWindow==0)?"(Background Script)":String.Empty)}");
                 }
             }
-
             oSettings.sExtensionID = oSettings.sExtensionID.Replace("chrome-extension://", String.Empty).TrimEnd('/');
             toolTip1.SetToolTip(pbExt, $"Connected to {oSettings.sExtensionID}.\nDouble-click to disconnect.");
             toolTip1.SetToolTip(pbApp, $"Click to set the ClientHandler to another instance of this app.");
@@ -754,7 +761,6 @@ private void lnkGithub_LinkClicked(object sender, LinkLabelLinkClickedEventArgs
         {
             Process.Start("https://github.com/ericlaw1979/NativeMessagingDebugger");
         }
-
         private void lnkDocs_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
         {
             Process.Start("https://github.com/ericlaw1979/NativeMessagingDebugger/blob/main/DOCS.md");

nmf-view/nmf-view.csproj

@@ -62,6 +62,7 @@
       <SubType>Component</SubType>
     </Compile>
     <Compile Include="JSON.cs" />
+    <Compile Include="ProcessInfo.cs" />
     <Compile Include="Program.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
     <Compile Include="RegisteredHosts.cs" />