From 9aa119e6765568103f5a41b401b305dff509e13a Mon Sep 17 00:00:00 2001
From: Mikhail Burakov <mburakov@mailbox.org>
Date: Tue, 17 Oct 2023 10:33:24 +0200
Subject: Allow disabling uhid interop from the commandline

---
 capture_wlr.c |  3 +--
 input.c       |  5 +++--
 input.h       |  2 +-
 main.c        | 10 ++++++++--
 4 files changed, 13 insertions(+), 7 deletions(-)

diff --git a/capture_wlr.c b/capture_wlr.c
index 0bd8f17..f8c7381 100644
--- a/capture_wlr.c
+++ b/capture_wlr.c
@@ -79,8 +79,7 @@ static void OnWlRegistryGlobalRemove(void* data, struct wl_registry* registry,
 }
 
 static bool InitWaylandGlobals(struct CaptureContextWlr* capture_context) {
-  capture_context->wl_display =
-      wl_display_connect(/*NULL*/ "/run/user/1000/wayland-1");
+  capture_context->wl_display = wl_display_connect(NULL);
   if (!capture_context->wl_display) {
     LOG("Failed to connect wl_display (%s)", strerror(errno));
     return false;
diff --git a/input.c b/input.c
index 7b35442..e47f363 100644
--- a/input.c
+++ b/input.c
@@ -36,7 +36,7 @@ struct InputHandler {
   int uhid_fd;
 };
 
-struct InputHandler* InputHandlerCreate(void) {
+struct InputHandler* InputHandlerCreate(bool disable_uhid) {
   struct InputHandler* input_handler = malloc(sizeof(struct InputHandler));
   if (!input_handler) {
     LOG("Failed to allocate input handler (%s)", strerror(errno));
@@ -47,7 +47,8 @@ struct InputHandler* InputHandlerCreate(void) {
   };
 
   BufferCreate(&input_handler->buffer);
-  input_handler->uhid_fd = open("/dev/uhid", O_RDWR);
+  input_handler->uhid_fd =
+      open(disable_uhid ? "/dev/null" : "/dev/uhid", O_RDWR);
   if (input_handler->uhid_fd == -1) {
     LOG("Failed to open uhid device (%s)", strerror(errno));
     goto rollback_input_handler;
diff --git a/input.h b/input.h
index 1de40a6..a3ed01e 100644
--- a/input.h
+++ b/input.h
@@ -22,7 +22,7 @@
 
 struct InputHandler;
 
-struct InputHandler* InputHandlerCreate(void);
+struct InputHandler* InputHandlerCreate(bool disable_uhid);
 int InputHandlerGetEventsFd(struct InputHandler* input_handler);
 bool InputHandlerProcessEvents(struct InputHandler* input_handler);
 bool InputHandlerHandle(struct InputHandler* input_handler, int fd);
diff --git a/main.c b/main.c
index e848536..0242bce 100644
--- a/main.c
+++ b/main.c
@@ -44,6 +44,7 @@ static volatile sig_atomic_t g_signal;
 static void OnSignal(int status) { g_signal = status; }
 
 struct Contexts {
+  bool disable_uhid;
   struct GpuContext* gpu_context;
   struct IoMuxer io_muxer;
   int server_fd;
@@ -231,7 +232,7 @@ static void OnClientConnecting(void* user) {
     LOG("Failed to schedule client reading (%s)", strerror(errno));
     goto drop_client;
   }
-  contexts->input_handler = InputHandlerCreate();
+  contexts->input_handler = InputHandlerCreate(contexts->disable_uhid);
   if (!contexts->input_handler) {
     LOG("Failed to create input handler");
     goto drop_client;
@@ -265,7 +266,7 @@ drop_client:
 
 int main(int argc, char* argv[]) {
   if (argc < 2) {
-    LOG("Usage: %s <port>", argv[0]);
+    LOG("Usage: %s <port> [--disable-uhid]", argv[0]);
     return EXIT_FAILURE;
   }
   if (signal(SIGINT, OnSignal) == SIG_ERR ||
@@ -279,6 +280,11 @@ int main(int argc, char* argv[]) {
       .server_fd = -1,
       .client_fd = -1,
   };
+  for (int i = 2; i < argc; i++) {
+    if (!strcmp(argv[i], "--disable-uhid")) {
+      contexts.disable_uhid = true;
+    }
+  }
   contexts.gpu_context = GpuContextCreate(colorspace, range);
   if (!contexts.gpu_context) {
     LOG("Failed to create gpu context");
-- 
cgit v1.2.3