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Fix test error for /bin/sh on Solaris 10 and older 

On Solaris 10 and older targets /bin/sh is not POSIX-compliant.
Test -z `...` fails with error 'sh: test: argument expected'.
Using quotes around backticks fixes this and doesn't break
POSIX compatibility.

SSH-Copy-ID-Upstream: 98394072a3f985b2650c1e8eab2fef84e38cc065
This commit is contained in:
Carlos Rodríguez Gili 2021-04-20 19:23:57 +02:00 committed by Darren Tucker
parent bd382dca31
commit 914f4ad138
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1 changed files with 2 additions and 1 deletions
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@ -1,6 +1,7 @@
#!/bin/sh
# Copyright (c) 1999-2023 Philip Hands <phil@hands.com>
# 2021 Carlos Rodríguez Gili <carlos.rodriguez-gili@upc.edu>
# 2020 Matthias Blümel <blaimi@blaimi.de>
# 2017 Sebastien Boyron <seb@boyron.eu>
# 2013 Martin Kletzander <mkletzan@redhat.com>
@ -259,7 +260,7 @@ installkeys_sh() {
AUTH_KEY_FILE=/etc/dropbear/authorized_keys;
AUTH_KEY_DIR=\`dirname "\${AUTH_KEY_FILE}"\`;
mkdir -p "\${AUTH_KEY_DIR}" &&
{ [ -z \`tail -1c "\${AUTH_KEY_FILE}" 2>/dev/null\` ] ||
{ [ -z "\`tail -1c "\${AUTH_KEY_FILE}" 2>/dev/null\`" ] ||
echo >> "\${AUTH_KEY_FILE}" || exit 1; } &&
cat >> "\${AUTH_KEY_FILE}" || exit 1;
if type restorecon >/dev/null 2>&1; then