From bd8f10db80342757cc920c0d54a58d2b46f31b7a Mon Sep 17 00:00:00 2001
From: Andreas Kling <kling@serenityos.org>
Date: Mon, 20 Dec 2021 19:48:30 +0100
Subject: [PATCH] LibCore: Add syscall wrapper for utime()

---
 Userland/Libraries/LibCore/System.cpp | 19 +++++++++++++++++++
 Userland/Libraries/LibCore/System.h   |  1 +
 2 files changed, 20 insertions(+)

diff --git a/Userland/Libraries/LibCore/System.cpp b/Userland/Libraries/LibCore/System.cpp
index c572f56367..465a936309 100644
--- a/Userland/Libraries/LibCore/System.cpp
+++ b/Userland/Libraries/LibCore/System.cpp
@@ -537,4 +537,23 @@ ErrorOr<void> rename(StringView old_path, StringView new_path)
 #endif
 }
 
+ErrorOr<void> utime(StringView path, Optional<struct utimbuf> maybe_buf)
+{
+    if (path.is_null())
+        return Error::from_errno(EFAULT);
+
+    struct utimbuf* buf = nullptr;
+    if (maybe_buf.has_value())
+        buf = &maybe_buf.value();
+#ifdef __serenity__
+    int rc = syscall(SC_utime, path.characters_without_null_termination(), path.length(), buf);
+    HANDLE_SYSCALL_RETURN_VALUE("utime"sv, rc, {});
+#else
+    String path_string = path;
+    if (::utime(path.characters(), buf) < 0)
+        return Error::from_syscall("utime"sv, -errno);
+    return {};
+#endif
+}
+
 }
diff --git a/Userland/Libraries/LibCore/System.h b/Userland/Libraries/LibCore/System.h
index bb9f857c33..7e582c2bfb 100644
--- a/Userland/Libraries/LibCore/System.h
+++ b/Userland/Libraries/LibCore/System.h
@@ -73,5 +73,6 @@ ErrorOr<pid_t> fork();
 ErrorOr<int> mkstemp(Span<char> pattern);
 ErrorOr<void> fchmod(int fd, mode_t mode);
 ErrorOr<void> rename(StringView old_path, StringView new_path);
+ErrorOr<void> utime(StringView path, Optional<struct utimbuf>);
 
 }