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From 818d297b17a55fc9c3b21784f45b23875501d654 Mon Sep 17 00:00:00 2001
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From: Eric Garver <eric@garver.life>
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Date: Mon, 17 Jun 2019 10:57:55 -0400
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Subject: [PATCH 04/20] test: new macro PIPESTATUS0
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It's essentially a portable version of bash's PIPESTATUS[0]. It passes
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down the return code of the first command in the pipeline.
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(cherry picked from commit 1c4bb9337f5d5c734a2a8bab10782423408d4026)
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---
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src/tests/functions.at | 8 ++++++++
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1 file changed, 8 insertions(+)
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diff --git a/src/tests/functions.at b/src/tests/functions.at
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index 800dd92c7826..932e288f1597 100644
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--- a/src/tests/functions.at
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+++ b/src/tests/functions.at
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@@ -242,6 +242,14 @@ m4_define([NS_CHECK], [
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AT_CHECK([NS_CMD([$1])], [$2], [$3], [$4], [$5], [$6])
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])
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+dnl implement PIPESTATUS[0] in a portable way
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+dnl
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+m4_define([PIPESTATUS0], [dnl
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+ sh <<-"HERE"
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+ { { { { $1; echo $? >&3; } | $2 >&4; } 3>&1; } | { read RC; exit $RC; } } 4>&1
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+HERE
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+])
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+
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m4_define([EBTABLES_LIST_RULES], [
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dnl ebtables commit 5f508b76a0ce change list output for inversion.
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m4_define([EBTABLES_LIST_RULES_NORMALIZE], [[sed -e 's/\([-][-][-a-zA-Z0-9]\+\)[ ]\+[!]/! \1/g']])
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--
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2.20.1
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