From 257ac5413c3b17e65378c0e5973814e5c747c7a8 Mon Sep 17 00:00:00 2001
From: Matheus <matheusuky@gmail.com>
Date: Sun, 17 Sep 2023 01:32:20 -0300
Subject: [PATCH] fcntl: fix file flags

---
 kernel-src/sys/syscalls/fcntl.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/kernel-src/sys/syscalls/fcntl.c b/kernel-src/sys/syscalls/fcntl.c
index 0835b567..ecf70398 100644
--- a/kernel-src/sys/syscalls/fcntl.c
+++ b/kernel-src/sys/syscalls/fcntl.c
@@ -30,7 +30,8 @@ syscallret_t syscall_fcntl(context_t *, int fd, int cmd, uint64_t arg) {
 			}
 			break;
 		case F_GETFL:
-			ret.ret = file->flags;
+			// decrement to convert internal read/write flags to O_RDONLY etc
+			ret.ret = file->flags - 1;
 			break;
 		case F_SETFL:
 			FILE_LOCK(file);