From 93b98ff5726fd620e1f123d04072b956412c1b55 Mon Sep 17 00:00:00 2001
From: Matt Whitlock <busybox@mattwhitlock.name>
Date: Sun, 26 Apr 2015 13:14:50 +0200
Subject: [PATCH] Bionic lacks tcdrain; provide a workaround

Signed-off-by: Matt Whitlock <busybox@mattwhitlock.name>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
---
 libbb/missing_syscalls.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libbb/missing_syscalls.c b/libbb/missing_syscalls.c
index dd430e3e2..e3c1e924b 100644
--- a/libbb/missing_syscalls.c
+++ b/libbb/missing_syscalls.c
@@ -39,4 +39,9 @@ int pivot_root(const char *new_root, const char *put_old)
 {
 	return syscall(__NR_pivot_root, new_root, put_old);
 }
+
+int tcdrain(int fd)
+{
+	return ioctl(fd, TCSBRK, 1);
+}
 #endif