From 37658e6fa6fbffa0b0a37ef23941095eaed4b37d Mon Sep 17 00:00:00 2001
From: sin-ack <sin-ack@users.noreply.github.com>
Date: Sun, 6 Feb 2022 17:54:15 +0000
Subject: [PATCH] LibCore: Implement System::fchown

---
 Userland/Libraries/LibCore/System.cpp | 7 +++++++
 Userland/Libraries/LibCore/System.h   | 1 +
 2 files changed, 8 insertions(+)

diff --git a/Userland/Libraries/LibCore/System.cpp b/Userland/Libraries/LibCore/System.cpp
index 70c93e27ba..9c257f3fb2 100644
--- a/Userland/Libraries/LibCore/System.cpp
+++ b/Userland/Libraries/LibCore/System.cpp
@@ -529,6 +529,13 @@ ErrorOr<void> fchmod(int fd, mode_t mode)
     return {};
 }
 
+ErrorOr<void> fchown(int fd, uid_t uid, gid_t gid)
+{
+    if (::fchown(fd, uid, gid) < 0)
+        return Error::from_syscall("fchown"sv, -errno);
+    return {};
+}
+
 ErrorOr<void> lchown(StringView pathname, uid_t uid, gid_t gid)
 {
     if (!pathname.characters_without_null_termination())
diff --git a/Userland/Libraries/LibCore/System.h b/Userland/Libraries/LibCore/System.h
index eb429eb1d3..9fa4c43eed 100644
--- a/Userland/Libraries/LibCore/System.h
+++ b/Userland/Libraries/LibCore/System.h
@@ -114,6 +114,7 @@ ErrorOr<void> chdir(StringView path);
 ErrorOr<pid_t> fork();
 ErrorOr<int> mkstemp(Span<char> pattern);
 ErrorOr<void> fchmod(int fd, mode_t mode);
+ErrorOr<void> fchown(int fd, uid_t, gid_t);
 ErrorOr<void> rename(StringView old_path, StringView new_path);
 ErrorOr<void> unlink(StringView path);
 ErrorOr<void> utime(StringView path, Optional<struct utimbuf>);