Fixes #1

xwinwrap.c

@@ -150,6 +150,7 @@ static void usage (void)
             -o      - Opacity value between 0 to 1 (ex: -o 0.20)\n \
             -sh     - Shape of window (choose between rectangle, circle or triangle. Default is rectangle)\n \
             -ov     - Set override_redirect flag (For seamless desktop background integration in non-fullscreenmode)\n \
+            -d      - Daemonize\n \
             -debug  - Enable debug messages\n");
 }
 
@@ -283,6 +284,7 @@ int main(int argc, char **argv)
     bool above = false;
     bool skip_taskbar = false;
     bool skip_pager = false;
+    bool daemonize = false;
 
     win_shape   shape = SHAPE_RECT;
     Pixmap      mask;
@@ -366,6 +368,10 @@ int main(int argc, char **argv)
         {
             debug = true;
         }
+        else if (strcmp (argv[i], "-d") == 0)
+        {
+            daemonize = true;
+        }
         else if (strcmp (argv[i], "--") == 0)
         {
             break;
@@ -377,6 +383,35 @@ int main(int argc, char **argv)
         }
     }
 
+    if (daemonize)
+    {
+        pid_t process_id = 0;
+        pid_t sid = 0;
+        process_id = fork();
+        if (process_id < 0)
+        {
+            fprintf(stderr, "fork failed!\n");
+            exit(1);
+        }
+
+        if (process_id > 0)
+        {
+            fprintf(stderr, "pid of child process %d \n", process_id);
+            exit(0);
+        }
+        umask(0);
+        sid = setsid();
+        if (sid < 0)
+        {
+            exit(1);
+        }
+
+        chdir("/");
+        close(STDIN_FILENO);
+        close(STDOUT_FILENO);
+        close(STDERR_FILENO);
+    }
+
     for (i = i + 1; i < argc; i++)
     {
         if (strcmp (argv[i], "WID") == 0)