add a podman test for syslogd

This is probably not a very good idea in general, because of the
introduction of a build dependency on podman, but it does make it easier
to track down #1039710

debian/control

@@ -7,6 +7,9 @@ Uploaders:
  Christoph Biedl <debian.axhn@manchmal.in-ulm.de>,
  Michael Tokarev <mjt@tls.msk.ru>,
 Build-Depends: debhelper-compat (= 13),
+ podman <!nocheck>,
+ uidmap <!nocheck>,
+ slirp4netns <!nocheck>,
  zip <!nocheck>
 Standards-Version: 4.6.2
 Vcs-Git: https://salsa.debian.org/installer-team/busybox.git

debian/patches/0015-add-a-podman-test-for-syslogd.patch

+From: Philip Hands <phil@hands.com>
+Date: Mon, 7 Aug 2023 16:16:26 +0200
+Subject: add a podman test for syslogd
+
+This is probably not a very good idea in general, because of the
+introduction of a build dependency on podman, but it does make it easier
+to track down #1039710
+---
+ scripts/test-log-to-syslogd.sh  | 28 ++++++++++++++++++++++++++++
+ testsuite/syslogd/syslogd-works |  5 +++++
+ 2 files changed, 33 insertions(+)
+ create mode 100755 scripts/test-log-to-syslogd.sh
+ create mode 100755 testsuite/syslogd/syslogd-works
+
+diff --git a/scripts/test-log-to-syslogd.sh b/scripts/test-log-to-syslogd.sh
+new file mode 100755
+index 0000000..976ca06
+--- /dev/null
++++ b/scripts/test-log-to-syslogd.sh
+@@ -0,0 +1,28 @@
++#!/bin/sh
++
++# this can be run (in a tree where the build's just finished) with:
++#
++#   podman run -v $PWD:/busybox docker.io/library/debian:latest /busybox/debian/test-log-to-syslogd.sh
++# or
++#   ( cd b/deb/testsuite;  SKIP_KNOWN_BUGS=y LANG=C.UTF-8 LC_ALL=C.UTF-8 SKIP_INTERNET_TESTS=y SHELL='/bin/sh -e' ECHO=/bin/echo ./runtest -v syslogd )
++
++TESTSTRING="Testing, Testing, 1 2 3"
++
++/busybox/b/deb/busybox syslogd
++# allow time for /dev/log to appear
++sleep 2
++
++if ! [ -e /dev/log ]; then
++    echo "ERROR -- /dev/log does not exist after starting syslogd"
++    exit 1
++fi
++
++/busybox/b/deb/busybox logger $TESTSTRING
++
++if grep -q "$TESTSTRING" /var/log/messages; then
++    echo "SUCCESS -- found test string in log file"
++else
++    echo "FAILURE -- test string was not found in log file:"
++    head -v /var/log/messages
++    exit 1
++fi
+diff --git a/testsuite/syslogd/syslogd-works b/testsuite/syslogd/syslogd-works
+new file mode 100755
+index 0000000..f054462
+--- /dev/null
++++ b/testsuite/syslogd/syslogd-works
+@@ -0,0 +1,5 @@
++# check if something gets logged (uses podman, which is quite probably not a sane thing to do)
++
++TOPDIR=${PWD%/b/*}
++
++podman run -v $TOPDIR:/busybox docker.io/library/debian:latest /busybox/scripts/test-log-to-syslogd.sh

debian/patches/series

@@ -17,3 +17,4 @@ fix-non-linux-build.patch
 syslogd-decrease-stack-usage-50-bytes.patch
 syslogd-daemonize-after-init-make-errs-visible.patch
 syslogd-avoid-nulling-devlog.patch
+0015-add-a-podman-test-for-syslogd.patch