1 files changed, 51 insertions, 0 deletions
diff --git a/Kernel/Syscalls/utime.cpp b/Kernel/Syscalls/utime.cpp
new file mode 100644
index 0000000000..1fa6acc635
--- /dev/null
+++ b/Kernel/Syscalls/utime.cpp
@@ -0,0 +1,51 @@
+/*
+ * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <AK/StringView.h>
+#include <Kernel/FileSystem/VirtualFileSystem.h>
+#include <Kernel/Process.h>
+
+namespace Kernel {
+
+int Process::sys$utime(const char* user_path, size_t path_length, const utimbuf* user_buf)
+{
+    REQUIRE_PROMISE(fattr);
+    if (user_buf && !validate_read_typed(user_buf))
+        return -EFAULT;
+    auto path = get_syscall_path_argument(user_path, path_length);
+    if (path.is_error())
+        return path.error();
+    utimbuf buf;
+    if (user_buf) {
+        copy_from_user(&buf, user_buf);
+    } else {
+        auto now = kgettimeofday();
+        buf = { now.tv_sec, now.tv_sec };
+    }
+    return VFS::the().utime(path.value(), current_directory(), buf.actime, buf.modtime);
+}
+
+}