From 9fe1ebebdcdc7af78606b359b45f34f5b87a0ca6 Mon Sep 17 00:00:00 2001
From: Kenneth Myhra <kennethmyhra@gmail.com>
Date: Fri, 14 Jan 2022 17:08:46 +0100
Subject: [PATCH] LibCore: Add mknod() syscall wrapper

---
 Userland/Libraries/LibCore/System.cpp | 17 +++++++++++++++++
 Userland/Libraries/LibCore/System.h   |  2 ++
 2 files changed, 19 insertions(+)

diff --git a/Userland/Libraries/LibCore/System.cpp b/Userland/Libraries/LibCore/System.cpp
index 7b942b094d..3bb1c698fd 100644
--- a/Userland/Libraries/LibCore/System.cpp
+++ b/Userland/Libraries/LibCore/System.cpp
@@ -928,4 +928,21 @@ ErrorOr<Vector<gid_t>> getgroups()
     return groups;
 }
 
+ErrorOr<void> mknod(StringView pathname, mode_t mode, dev_t dev)
+{
+    if (pathname.is_null())
+        return Error::from_syscall("mknod"sv, -EFAULT);
+
+#ifdef __serenity__
+    Syscall::SC_mknod_params params { { pathname.characters_without_null_termination(), pathname.length() }, mode, dev };
+    int rc = syscall(SC_mknod, &params);
+    HANDLE_SYSCALL_RETURN_VALUE("mknod"sv, rc, {});
+#else
+    String path_string = pathname;
+    if (::mknod(path_string.characters(), mode, dev) < 0)
+        return Error::from_syscall("mknod"sv, -errno);
+    return {};
+#endif
+}
+
 }
diff --git a/Userland/Libraries/LibCore/System.h b/Userland/Libraries/LibCore/System.h
index 0bba07f5bc..fb6ba508ed 100644
--- a/Userland/Libraries/LibCore/System.h
+++ b/Userland/Libraries/LibCore/System.h
@@ -135,4 +135,6 @@ ErrorOr<void> getsockname(int sockfd, struct sockaddr*, socklen_t*);
 ErrorOr<void> getpeername(int sockfd, struct sockaddr*, socklen_t*);
 ErrorOr<void> socketpair(int domain, int type, int protocol, int sv[2]);
 ErrorOr<Vector<gid_t>> getgroups();
+ErrorOr<void> mknod(StringView pathname, mode_t mode, dev_t dev);
+
 }