2 files changed, 53 insertions, 3 deletions

diff --git a/src/newt/native/drm_gbm.c b/src/newt/native/drm_gbm.c
index 7fb6ad2c8..a6c9a3f9a 100644
--- a/src/newt/native/drm_gbm.c
+++ b/src/newt/native/drm_gbm.c
@@ -27,6 +27,8 @@
  */
 
 #include "drm_gbm.h"
+#include <unistd.h>
+#include <termios.h>
 
 static jmethodID sizeChangedID = NULL;
 static jmethodID positionChangedID = NULL;
@@ -37,13 +39,58 @@ static jmethodID windowDestroyNotifyID = NULL;
  * Display
  */
 
+static int saved_stdin;
+
+static void setNullStdin()
+{
+    saved_stdin = dup(fileno(stdin));
+    if( 0 > saved_stdin ) {
+        ERR_PRINT("setNullStdin dup failed: %d %s\n", saved_stdin, strerror(errno));
+        return;
+    }
+    freopen("/dev/null", "r", stdin); // fake null stdin, closes stdin
+    DBG_PRINT("setNullStdin done\n");
+}
+
+static void restoreStdin()
+{
+    int null_stdin = dup(fileno(stdin)); // copy to close after restore
+    if( 0 > null_stdin ) {
+        ERR_PRINT("restoreStdin.1 dup failed: %d %s\n", null_stdin, strerror(errno));
+        return;
+    }
+    // restore
+    int restored_stdin = dup2(saved_stdin, fileno(stdin));
+    if( 0 > restored_stdin ) {
+        ERR_PRINT("restoreStdin.2 dup2 failed: %d %s\n", restored_stdin, strerror(errno));
+        return;
+    }
+    saved_stdin = -1;
+
+    // cleanup stdin before it gets executed on the console
+    tcdrain(restored_stdin);
+    tcflush(restored_stdin, TCIFLUSH);
+
+    close(null_stdin); // close fake null stdin
+    close(restored_stdin); 
+    DBG_PRINT("restoreStdin done\n");
+}
+
 JNIEXPORT jboolean JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_initIDs
   (JNIEnv *env, jclass clazz)
 {
+    setNullStdin();
     DBG_PRINT( "EGL_GBM.Display initIDs ok\n" );
     return JNI_TRUE;
 }
 
+JNIEXPORT void JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_Shutdown0
+  (JNIEnv *env, jclass clazz)
+{
+    restoreStdin();
+    DBG_PRINT( "EGL_GBM.Display shutdown ok\n" );
+}
+
 JNIEXPORT void JNICALL Java_jogamp_newt_driver_egl_gbm_DisplayDriver_DispatchMessages0
   (JNIEnv *env, jclass clazz)
 {
diff --git a/src/newt/native/drm_gbm_legacy.c b/src/newt/native/drm_gbm_legacy.c
index 1aa8d5f82..cec3297a8 100644
--- a/src/newt/native/drm_gbm_legacy.c
+++ b/src/newt/native/drm_gbm_legacy.c
@@ -286,7 +286,9 @@ JNIEXPORT jlong JNICALL Java_jogamp_newt_driver_egl_gbm_WindowDriver_NextSwapSur
 
         while (waiting_for_flip) {
             FD_ZERO(&fds);
-            FD_SET(0, &fds);
+#if 0
+            FD_SET(0, &fds); // STDIN_FILENO: We don't want to listen to 
+#endif
             FD_SET(drmFd, &fds);
 
             ret = select(drmFd + 1, &fds, NULL, NULL, NULL);
@@ -296,9 +298,10 @@ JNIEXPORT jlong JNICALL Java_jogamp_newt_driver_egl_gbm_WindowDriver_NextSwapSur
             } else if (ret == 0) {
                 ERR_PRINT("drm.select: select timeout!\n");
                 return -1;
+#if 0
             } else if (FD_ISSET(0, &fds)) {
-                ERR_PRINT("drm.select: user interrupted!\n");
-                return 0;
+                DBG_PRINT("drm.select: stdin carriage return pressed!\n");
+#endif
             }
             drmHandleEvent(drmFd, &drm_event_ctx);
         }