systemd: add myhostname to nsswitch.conf

We don't need nss-myhostname on systemd systems, because systemd already
provides myhostname, but we weren't configuring nsswitch to use it. Being able
to resolve the hostname is useful for a number of different applications, so
enable it using the same postinst/prerm bits which are in nss-myhostname.

(From OE-Core rev: 1fb3e1a4bbf36a5b46d126a478d42d0b94f43182)

Signed-off-by: Christopher Larson <chris_larson@mentor.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/meta/recipes-core/systemd/systemd_228.bb b/meta/recipes-core/systemd/systemd_228.bb
index 19b7b4218d..df8813ac42 100644
--- a/meta/recipes-core/systemd/systemd_228.bb
+++ b/meta/recipes-core/systemd/systemd_228.bb
@@ -404,6 +404,18 @@ ALTERNATIVE_TARGET[runlevel] = "${base_bindir}/systemctl"
 ALTERNATIVE_LINK_NAME[runlevel] = "${base_sbindir}/runlevel"
 ALTERNATIVE_PRIORITY[runlevel] ?= "300"
 
+pkg_postinst_${PN} () {
+        sed -e '/^hosts:/s/\s*\<myhostname\>//' \
+                -e 's/\(^hosts:.*\)\(\<files\>\)\(.*\)\(\<dns\>\)\(.*\)/\1\2 myhostname \3\4\5/' \
+                -i $D${sysconfdir}/nsswitch.conf
+}
+
+pkg_prerm_${PN} () {
+        sed -e '/^hosts:/s/\s*\<myhostname\>//' \
+                -e '/^hosts:/s/\s*myhostname//' \
+                -i $D${sysconfdir}/nsswitch.conf
+}
+
 pkg_postinst_udev-hwdb () {
         if test -n "$D"; then
                 ${@qemu_run_binary(d, '$D', '${base_bindir}/udevadm')} hwdb --update \