[Xen-devel] [OSSTEST PATCH 05/16] mg-debug-fail: Catch attempts to read from a tty

[Ian Jackson <ian.jackson@xxxxxxxxxxxxx>]

When stdin is a tty, do not try to dump it.

Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
---
 mg-debug-fail |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/mg-debug-fail b/mg-debug-fail
index a163aef..47ad68a 100755
--- a/mg-debug-fail
+++ b/mg-debug-fail
@@ -3,10 +3,10 @@
 # This script can be provided anywhere an executable or command name is
 # wanted.  It prints its arguments, and its stdin, to its stderr, and
 # then exits nonzero.
-#
-# When using this it may be useful to provide </dev/null as a
-# redirection for the whole program under test.  Otherwise things
-# can mysteriously hang.
+
+if tty >/dev/null 2>&1; then
+       exec </dev/null
+fi
 
 bash -xc ': mg-debug-fail "$@"' x "$@"
 egrep '' >&2
-- 
1.7.10.4


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