From b3b40ae1fad25e04493836259fc87ef91f67aa8b Mon Sep 17 00:00:00 2001
From: Lucas CHOLLET <lucas.chollet@free.fr>
Date: Fri, 14 Jan 2022 10:20:29 +0100
Subject: [PATCH] LibCore: Add wrapper for sethostname

---
 Userland/Libraries/LibCore/System.cpp | 8 ++++++++
 Userland/Libraries/LibCore/System.h   | 2 ++
 2 files changed, 10 insertions(+)

diff --git a/Userland/Libraries/LibCore/System.cpp b/Userland/Libraries/LibCore/System.cpp
index f29fb758ca..bbc1a08684 100644
--- a/Userland/Libraries/LibCore/System.cpp
+++ b/Userland/Libraries/LibCore/System.cpp
@@ -352,6 +352,14 @@ ErrorOr<String> gethostname()
     return String(&hostname[0]);
 }
 
+ErrorOr<void> sethostname(StringView hostname)
+{
+    int rc = ::sethostname(hostname.characters_without_null_termination(), hostname.length());
+    if (rc < 0)
+        return Error::from_syscall("sethostname"sv, -errno);
+    return {};
+}
+
 ErrorOr<String> getcwd()
 {
     auto* cwd = ::getcwd(nullptr, 0);
diff --git a/Userland/Libraries/LibCore/System.h b/Userland/Libraries/LibCore/System.h
index 7cf6027d53..1ade033c6a 100644
--- a/Userland/Libraries/LibCore/System.h
+++ b/Userland/Libraries/LibCore/System.h
@@ -9,6 +9,7 @@
 #pragma once
 
 #include <AK/Error.h>
+#include <AK/StringView.h>
 #include <fcntl.h>
 #include <grp.h>
 #include <pwd.h>
@@ -72,6 +73,7 @@ ErrorOr<int> dup(int source_fd);
 ErrorOr<int> dup2(int source_fd, int destination_fd);
 ErrorOr<String> ptsname(int fd);
 ErrorOr<String> gethostname();
+ErrorOr<void> sethostname(StringView);
 ErrorOr<String> getcwd();
 ErrorOr<void> ioctl(int fd, unsigned request, ...);
 ErrorOr<struct termios> tcgetattr(int fd);