From 21a377707f1ca91b42727ec848ee4375c33e8ef0 Mon Sep 17 00:00:00 2001
From: imterah <me@terah.dev>
Date: Tue, 10 Jun 2025 21:19:02 -0400
Subject: [PATCH] Disable stdin input by default and add ability to disable
 EVDEV input

---
 CMakeOptions.txt                  |  4 +-
 cmake/LibraryConfigurations.cmake |  8 ++++
 src/config.h                      |  2 +-
 src/platforms/rcore_drm.c         | 76 +++++++++++++++++--------------
 4 files changed, 53 insertions(+), 37 deletions(-)

diff --git a/CMakeOptions.txt b/CMakeOptions.txt
index b865fb981..563f40f8f 100644
--- a/CMakeOptions.txt
+++ b/CMakeOptions.txt
@@ -1,4 +1,4 @@
-# ## Config options ###
+### Config options ###
 include(CMakeDependentOption)
 include(EnumOption)
 
@@ -29,6 +29,8 @@ set(OFF ${INCLUDE_EVERYTHING} CACHE INTERNAL "Replace any OFF by default with \$
 
 # DRM build options
 option(ENABLE_WAYLAND_DRM_LEASING "Enables DRM leasing in the DRM backend via the Wayland desktop" OFF)
+option(DISABLE_EVDEV_INPUT "Disable evdev input in the DRM backend" OFF)
+option(SUPPORT_SSH_KEYBOARD_RPI "Support using keyboard input from stdin" ON)
 
 include(ParseConfigHeader)
 
diff --git a/cmake/LibraryConfigurations.cmake b/cmake/LibraryConfigurations.cmake
index 061bb4364..72e81978c 100644
--- a/cmake/LibraryConfigurations.cmake
+++ b/cmake/LibraryConfigurations.cmake
@@ -103,6 +103,14 @@ elseif ("${PLATFORM}" MATCHES "DRM")
         list(APPEND LIBS_PRIVATE ${WAYLAND_CLIENT})
     endif ()
 
+    if (DISABLE_EVDEV_INPUT)
+        add_definitions(-DDISABLE_EVDEV_INPUT)
+    endif ()
+
+    if (SUPPORT_SSH_KEYBOARD_RPI)
+        add_definitions(-DSUPPORT_SSH_KEYBOARD_RPI)
+    endif ()
+
 elseif ("${PLATFORM}" MATCHES "SDL")
     find_package(SDL2 REQUIRED)
     set(PLATFORM_CPP "PLATFORM_DESKTOP_SDL")
diff --git a/src/config.h b/src/config.h
index e3749c560..06b69eec7 100644
--- a/src/config.h
+++ b/src/config.h
@@ -50,7 +50,7 @@
 // Mouse gestures are directly mapped like touches and processed by gestures system
 #define SUPPORT_MOUSE_GESTURES          1
 // Reconfigure standard input to receive key inputs, works with SSH connection.
-#define SUPPORT_SSH_KEYBOARD_RPI        1
+#define SUPPORT_SSH_KEYBOARD_RPI        0
 // Setting a higher resolution can improve the accuracy of time-out intervals in wait functions.
 // However, it can also reduce overall system performance, because the thread scheduler switches tasks more often.
 #define SUPPORT_WINMM_HIGHRES_TIMER     1
diff --git a/src/platforms/rcore_drm.c b/src/platforms/rcore_drm.c
index 94b48e9ce..c556290d0 100644
--- a/src/platforms/rcore_drm.c
+++ b/src/platforms/rcore_drm.c
@@ -1639,46 +1639,52 @@ static void ProcessKeyboard(void)
 // this means mouse, keyboard or gamepad devices
 static void InitEvdevInput(void)
 {
-    char path[MAX_FILEPATH_LENGTH] = { 0 };
-    DIR *directory = NULL;
-    struct dirent *entity = NULL;
+    #if !defined(DISABLE_EVDEV_INPUT)
+        char path[MAX_FILEPATH_LENGTH] = { 0 };
+        DIR *directory = NULL;
+        struct dirent *entity = NULL;
 
-    // Initialise keyboard file descriptor
-    platform.keyboardFd = -1;
-    platform.mouseFd = -1;
+        // Initialise keyboard file descriptor
+        platform.keyboardFd = -1;
+        platform.mouseFd = -1;
 
-    // Reset variables
-    for (int i = 0; i < MAX_TOUCH_POINTS; ++i)
-    {
-        CORE.Input.Touch.position[i].x = -1;
-        CORE.Input.Touch.position[i].y = -1;
-    }
-
-    // Reset keyboard key state
-    for (int i = 0; i < MAX_KEYBOARD_KEYS; i++)
-    {
-        CORE.Input.Keyboard.currentKeyState[i] = 0;
-        CORE.Input.Keyboard.keyRepeatInFrame[i] = 0;
-    }
-
-    // Open the linux directory of "/dev/input"
-    directory = opendir(DEFAULT_EVDEV_PATH);
-
-    if (directory)
-    {
-        while ((entity = readdir(directory)) != NULL)
+        // Reset variables
+        for (int i = 0; i < MAX_TOUCH_POINTS; ++i)
         {
-            if ((strncmp("event", entity->d_name, strlen("event")) == 0) ||     // Search for devices named "event*"
-                (strncmp("mouse", entity->d_name, strlen("mouse")) == 0))       // Search for devices named "mouse*"
-            {
-                sprintf(path, "%s%s", DEFAULT_EVDEV_PATH, entity->d_name);
-                ConfigureEvdevDevice(path);                                     // Configure the device if appropriate
-            }
+            CORE.Input.Touch.position[i].x = -1;
+            CORE.Input.Touch.position[i].y = -1;
         }
 
-        closedir(directory);
-    }
-    else TRACELOG(LOG_WARNING, "INPUT: Failed to open linux event directory: %s", DEFAULT_EVDEV_PATH);
+        // Reset keyboard key state
+        for (int i = 0; i < MAX_KEYBOARD_KEYS; i++)
+        {
+            CORE.Input.Keyboard.currentKeyState[i] = 0;
+            CORE.Input.Keyboard.keyRepeatInFrame[i] = 0;
+        }
+
+        // Open the linux directory of "/dev/input"
+        directory = opendir(DEFAULT_EVDEV_PATH);
+
+        if (directory)
+        {
+            while ((entity = readdir(directory)) != NULL)
+            {
+                if ((strncmp("event", entity->d_name, strlen("event")) == 0) ||     // Search for devices named "event*"
+                    (strncmp("mouse", entity->d_name, strlen("mouse")) == 0))       // Search for devices named "mouse*"
+                {
+                    sprintf(path, "%s%s", DEFAULT_EVDEV_PATH, entity->d_name);
+                    ConfigureEvdevDevice(path);                                     // Configure the device if appropriate
+                }
+            }
+
+            closedir(directory);
+        }
+        else TRACELOG(LOG_WARNING, "INPUT: Failed to open linux event directory: %s", DEFAULT_EVDEV_PATH);
+    #else
+        TRACELOG(LOG_INFO, "INPUT: Not doing evdev input configuration as it's disabled");
+        platform.keyboardFd = -1;
+        platform.mouseFd = -1;
+    #endif
 }
 
 // Identifies a input device and configures it for use if appropriate