From c44a8fa57c772369a44fb1c093feabe37f4410cf Mon Sep 17 00:00:00 2001
From: implicitfield <114500360+implicitfield@users.noreply.github.com>
Date: Mon, 29 Apr 2024 21:05:27 +0400
Subject: [PATCH] LibC: Implement `mkfifoat(2)`

---
 Userland/Libraries/LibC/stat.cpp   | 6 ++++++
 Userland/Libraries/LibC/sys/stat.h | 1 +
 2 files changed, 7 insertions(+)

diff --git a/Userland/Libraries/LibC/stat.cpp b/Userland/Libraries/LibC/stat.cpp
index c6139a602a6..769634b971a 100644
--- a/Userland/Libraries/LibC/stat.cpp
+++ b/Userland/Libraries/LibC/stat.cpp
@@ -81,6 +81,12 @@ int mkfifo(char const* pathname, mode_t mode)
     return mknod(pathname, mode | S_IFIFO, 0);
 }
 
+// https://pubs.opengroup.org/onlinepubs/9699919799/functions/mkfifoat.html
+int mkfifoat(int dirfd, char const* pathname, mode_t mode)
+{
+    return mknodat(dirfd, pathname, mode | S_IFIFO, 0);
+}
+
 static int do_stat(int dirfd, char const* path, struct stat* statbuf, bool follow_symlinks)
 {
     if (!path) {
diff --git a/Userland/Libraries/LibC/sys/stat.h b/Userland/Libraries/LibC/sys/stat.h
index e9a4e9b0300..67417a11ef9 100644
--- a/Userland/Libraries/LibC/sys/stat.h
+++ b/Userland/Libraries/LibC/sys/stat.h
@@ -20,6 +20,7 @@ int fchmod(int fd, mode_t);
 int mkdir(char const* pathname, mode_t);
 int mkdirat(int dirfd, char const* pathname, mode_t);
 int mkfifo(char const* pathname, mode_t);
+int mkfifoat(int dirfd, char const* pathname, mode_t);
 int fstat(int fd, struct stat* statbuf);
 int lstat(char const* path, struct stat* statbuf);
 int stat(char const* path, struct stat* statbuf);