From 29cd838eab01ed7110f3ccb2e8c6a35c8a31dbcc Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:21:29 +0200 Subject: Adding upstream version 1:0.1.9998svn3589+dfsg. Signed-off-by: Daniel Baumann --- src/grep/tests/epipe | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100755 src/grep/tests/epipe (limited to 'src/grep/tests/epipe') diff --git a/src/grep/tests/epipe b/src/grep/tests/epipe new file mode 100755 index 0000000..3b568e3 --- /dev/null +++ b/src/grep/tests/epipe @@ -0,0 +1,29 @@ +#!/bin/sh +# Check that a write failure with errno == EPIPE +# doesn't cause grep to issue multiple "write error" diagnostics. + +. "${srcdir=.}/init.sh"; path_prepend_ ../src + +if + # Use awk to output a bounded amount of data to the grep in question, + # so that the test doesn't loop forever if grep is buggy. + # Use an explicit /dev/null for the benefit of older (pre-POSIX) awks. + # + # Carefully close fd 3 when not needed, as a sanity check. + # + # Do not use "trap - PIPE" or "trap 'something' PIPE" here, since we may + # be running in an environment where SIGPIPE is ignored, and in such an + # environment POSIX says that "trap '' PIPE" is all we can do portably. + ( + ${AWK-awk} 'BEGIN { for (i=0; i<1000000; i++) print i; }' /dev/null 3>&- | + (trap '' PIPE; exec grep . 2>&3 3>&-) | + : + ) 3>&1 | ( + read line1 && echo >&2 "$line1" && + read line2 && echo >&2 "$line2" + ) +then fail=1 +else fail=0 +fi + +Exit $fail -- cgit v1.2.3