From a09dfe274a61c8bbfd657705953c023fae32a25c Mon Sep 17 00:00:00 2001
From: EnderIce2 <enderice2@users.noreply.github.com>
Date: Mon, 1 Apr 2024 00:58:09 +0300
Subject: [PATCH] Fix file creation and append functionality

---
 storage/file_descriptor.cpp | 31 ++++++++++++-------------------
 1 file changed, 12 insertions(+), 19 deletions(-)

diff --git a/storage/file_descriptor.cpp b/storage/file_descriptor.cpp
index 7b8be33..f6a0bd1 100644
--- a/storage/file_descriptor.cpp
+++ b/storage/file_descriptor.cpp
@@ -194,6 +194,12 @@ namespace vfs
 				debug("%s: File already exists, continuing...",
 					  AbsolutePath);
 			}
+			else if (Flags & O_EXCL)
+			{
+				debug("%s: File already exists, returning EEXIST",
+					  AbsolutePath);
+				return -EEXIST;
+			}
 			else if (ret < 0)
 			{
 				error("Failed to create file %s: %d",
@@ -202,30 +208,11 @@ namespace vfs
 			}
 		}
 
-		if (Flags & O_EXCL)
-		{
-			RefNode *File = fs->Open(AbsolutePath,
-									 pcb->CurrentWorkingDirectory);
-
-			if (!File)
-			{
-				error("Failed to open file %s",
-					  AbsolutePath);
-				return -ENOENT;
-			}
-			delete File;
-		}
-
 		if (Flags & O_TRUNC)
 		{
 			fixme("O_TRUNC");
 		}
 
-		if (Flags & O_APPEND)
-		{
-			fixme("O_APPEND");
-		}
-
 		if (Flags & O_CLOEXEC)
 		{
 			fixme("O_CLOEXEC");
@@ -241,6 +228,12 @@ namespace vfs
 			return -ENOENT;
 		}
 
+		if (Flags & O_APPEND)
+		{
+			debug("Appending to file %s", AbsolutePath);
+			File->seek(0, SEEK_END);
+		}
+
 		Fildes fd = {.Descriptor = GetFreeFileDescriptor()};
 
 		if (fd.Descriptor < 0)