1 files changed, 33 insertions, 0 deletions
diff --git a/debian/libnss-resolve.postrm b/debian/libnss-resolve.postrm
new file mode 100644
index 0000000..c951b86
--- /dev/null
+++ b/debian/libnss-resolve.postrm
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+set -e
+
+remove_nss_entry() {
+    local file=$1
+    local pkg=$2
+    local module=$3
+    refcount=$(dpkg-query -f '${db:Status-Abbrev} ${binary:Package}\n' \
+        -W $pkg | grep '^i' | wc -l)
+    if [ "$refcount" -gt 0 ] ; then
+        # package is installed for other architectures still, do nothing
+        return
+    fi
+    echo "Checking NSS setup..."
+    # abort if file does not exist
+    if ! [ -e $file ]; then
+        echo "Could not find ${file}."
+        return
+    fi
+    # we must remove possible [foo=bar] options as well
+    sed -i -r "/hosts:/ s/[[:space:]]+$module\b([[:space:]]*\[[^]]*\])*//" $file
+}
+
+if [ "$1" = remove ]; then
+    remove_nss_entry /etc/nsswitch.conf libnss-resolve resolve
+    systemctl disable systemd-resolved.service
+    if [ -d /run/systemd/system ]; then
+        deb-systemd-invoke stop systemd-resolved.service || true
+    fi
+fi
+
+#DEBHELPER#