From 36231bee7ab36d59dd121ea85b91411ae86945f3 Mon Sep 17 00:00:00 2001 From: Samuel Thibault Date: Mon, 1 Feb 2021 19:39:48 +0100 Subject: hurd TIOCFLUSH: Cope BSD 4.1 semantic BSD 4.1 did not have an argument for TIOCFLUSH, BSD 4.2 added it. There are still a lot of applications out there that pass a NULL argument to TIOCFLUSH, so we should rather cope with it. --- sysdeps/mach/hurd/ioctl.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'sysdeps/mach/hurd/ioctl.c') diff --git a/sysdeps/mach/hurd/ioctl.c b/sysdeps/mach/hurd/ioctl.c index 662e8ee919..0d5bc176d1 100644 --- a/sysdeps/mach/hurd/ioctl.c +++ b/sysdeps/mach/hurd/ioctl.c @@ -113,6 +113,10 @@ __ioctl (int fd, unsigned long int request, ...) /* We don't want to advance ARG since it will be used to copy out too if IOC_OUT is also set. */ void *argptr = arg; + int zero = 0; + + if (request == TIOCFLUSH && !arg) + arg = &zero; /* Pack an argument into the message buffer. */ void in (unsigned int count, enum __ioctl_datum type) -- cgit 1.4.1