M CHANGES → CHANGES

@@ -25,6 +25,7 @@ - GBA Savedata: Fix savedata unmasking (fixes mgba.io/i/441)
  - Util: Fix overflow when loading invalid UPS patches
  - Tools: Fix recurring multiple times over the same library
  - GBA I/O: Handle audio registers specially when deserializing
+ - Util: Fix highest-fd socket not being returned by SocketAccept
 Misc:
  - SDL: Remove scancode key input
  - GBA Video: Clean up unused timers

M include/mgba-util/socket.h → include/mgba-util/socket.h

@@ -293,10 +293,11 @@ FD_SET(errors[i], &eset);
 			errors[i] = INVALID_SOCKET;
 		}
 	}
+	++maxFd;
 	struct timeval tv;
 	tv.tv_sec = timeoutMillis / 1000;
 	tv.tv_usec = (timeoutMillis % 1000) * 1000;
-	int result = select(maxFd + 1, &rset, &wset, &eset, timeoutMillis < 0 ? 0 : &tv);
+	int result = select(maxFd, &rset, &wset, &eset, timeoutMillis < 0 ? 0 : &tv);
 	int r = 0;
 	int w = 0;
 	int e = 0;