authselect is to old in RHEL, switch scripts back (#2113979)

nss-mdns.spec

@@ -1,6 +1,6 @@
 Name: nss-mdns
 Version: 0.15.1
-Release: 3%{?dist}
+Release: 3.1%{?dist}
 Summary: glibc plugin for .local name resolution
 
 License: LGPLv2+
@@ -42,10 +42,51 @@ rm -rf $RPM_BUILD_ROOT
 %{?ldconfig}
 
 %posttrans
-authselect enable-feature with-mdns4 &> /dev/null || :
+function mod_nss() {
+    if [ -f "$1" ] ; then
+        # sed-fu to add mdns4_minimal to the hosts line of /etc/nsswitch.conf
+        sed -i.bak '
+            /^hosts:/ !b
+            /\<mdns\(4\|6\)\?\(_minimal\)\?\>/ b
+            s/\<\(files\( myhostname\)\?[[:blank:]]\+\)/\1mdns4_minimal [NOTFOUND=return] /g
+            ' "$1"
+    fi
+}
+
+FILE="$(readlink /etc/nsswitch.conf || echo /etc/nsswitch.conf)"
+if [ "$FILE" = "/etc/authselect/nsswitch.conf" ] && authselect check &>/dev/null; then
+    mod_nss "/etc/authselect/user-nsswitch.conf"
+    authselect apply-changes &> /dev/null || :
+else
+    mod_nss "$FILE"
+    # also apply the same changes to user-nsswitch.conf to affect
+    # possible future authselect configuration
+    mod_nss "/etc/authselect/user-nsswitch.conf"
+fi
 
 %preun
-authselect disable-feature with-mdns4 &> /dev/null || :
+function mod_nss() {
+    if [ -f "$1" ] ; then
+        # sed-fu to remove mdns4_minimal from the hosts line of /etc/nsswitch.conf
+    	sed -i.bak '
+	    	/^hosts:/ !b
+		    s/[[:blank:]]\+mdns\(4\|6\)\?\(_minimal\( \[NOTFOUND=return\]\)\?\)\?//g
+    		' "$1"
+    fi
+}
+
+if [ "$1" -eq 0 ] ; then
+    FILE="$(readlink /etc/nsswitch.conf || echo /etc/nsswitch.conf)"
+    if [ "$FILE" = "/etc/authselect/nsswitch.conf" ] && authselect check &>/dev/null; then
+        mod_nss "/etc/authselect/user-nsswitch.conf"
+        authselect apply-changes &> /dev/null || :
+    else
+        mod_nss "$FILE"
+        # also apply the same changes to user-nsswitch.conf to affect
+        # possible future authselect configuration
+        mod_nss "/etc/authselect/user-nsswitch.conf"
+    fi
+fi
 
 %ldconfig_postun
 
@@ -57,6 +98,9 @@ authselect disable-feature with-mdns4 &> /dev/null || :
 
 
 %changelog
+* Tue Nov 16 2021 Pavel Březina - 0.15.1-3.1
+- authselect is too old in RHEL, switch scripts back (#2113979)
+
 * Tue Nov 16 2021 Pavel Březina - 0.15.1-3
 - Rely only on authselect for nsswitch.conf changes (#2023745)