From be86232f72dcfbd51a889206e80d587fbcaa1c5b Mon Sep 17 00:00:00 2001
From: Michal Privoznik <mprivozn@redhat.com>
Date: Fri, 21 Feb 2025 12:53:13 +0100
Subject: [PATCH] seccomp.sh: Silence stty errors
When printing list of allowed syscalls the width of terminal is
obtained for nicer output (see commit below). The width is
obtained by running 'stty'. While this works when building from a
console, it doesn't work during rpmbuild/emerge/.. as stdout is
usually not a console but a logfile and stdin is usually
/dev/null or something. This results in stty reporting errors
like this:
stty: 'standard input': Inappropriate ioctl for device
Redirect stty's stderr to /dev/null to silence it.
Fixes: 712ca3235329 ("seccomp.sh: Try to account for terminal width while formatting list of system calls")
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
---
seccomp.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/seccomp.sh b/seccomp.sh
index 4c521ae..a7bc417 100755
--- a/seccomp.sh
+++ b/seccomp.sh
@@ -255,7 +255,7 @@ for __p in ${__profiles}; do
__calls="${__calls} ${EXTRA_SYSCALLS:-}"
__calls="$(filter ${__calls})"
- cols="$(stty -a | sed -n 's/.*columns \([0-9]*\).*/\1/p' || :)" 2>/dev/null
+ cols="$(stty -a 2>/dev/null | sed -n 's/.*columns \([0-9]*\).*/\1/p' || :)" 2>/dev/null
case $cols in [0-9]*) col_args="-w ${cols}";; *) col_args="";; esac
echo "seccomp profile ${__p} allows: ${__calls}" | tr '\n' ' ' | fmt -t ${col_args}