From 78bc2141f69c512fda23197456f4869e4961c081 Mon Sep 17 00:00:00 2001
From: Cameron Gutman <aicommander@gmail.com>
Date: Thu, 2 Apr 2026 21:20:33 -0500
Subject: [PATCH] Fix getSdlFdEntryIndex() for FD 0

---
 app/masterhook_internal.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/app/masterhook_internal.c b/app/masterhook_internal.c
index 8fc087ce..a8708fcb 100644
--- a/app/masterhook_internal.c
+++ b/app/masterhook_internal.c
@@ -42,12 +42,10 @@ pthread_mutex_t g_FdTableLock = PTHREAD_MUTEX_INITIALIZER;
 int getSdlFdEntryIndex(bool unused)
 {
     for (int i = 0; i < MAX_SDL_FD_COUNT; i++) {
-        // We slightly bend the FD rules here by treating 0
-        // as invalid since that's our global default value.
-        if (unused && g_SdlDrmMasterFds[i] <= 0) {
+        if (unused && g_SdlDrmMasterFds[i] < 0) {
             return i;
         }
-        else if (!unused && g_SdlDrmMasterFds[i] > 0) {
+        else if (!unused && g_SdlDrmMasterFds[i] >= 0) {
             return i;
         }
     }