postfix.inc: fix start postfix failed while hostname is numeric

While hostname is numeric, start postfix failed
...
root@qemux86-64:~# hostname 1.2.3.4
root@qemux86-64:~# systemctl restart postfix
|Job for postfix.service failed because the control process exited
with error code. See "systemctl status postfix.service" and
"journalctl -xe" for details.

root@qemux86-64:~# systemctl status postfix -l
Dec 02 08:05:40 1.2.3.4 aliasesdb[535]: /usr/sbin/postconf: fatal: unable to use my own hostname
Dec 02 08:05:41 1.2.3.4 aliasesdb[535]: newaliases: warning: valid_hostname: numeric hostname: 1.2.3.4
Dec 02 08:05:41 1.2.3.4 postfix/sendmail[537]: warning: valid_hostname: numeric hostname: 1.2.3.4
Dec 02 08:05:41 1.2.3.4 aliasesdb[535]: newaliases: fatal: unable to use my own hostname
Dec 02 08:05:42 1.2.3.4 postfix[540]: warning: valid_hostname: numeric hostname: 1.2.3.4
Dec 02 08:05:42 1.2.3.4 postfix[540]: fatal: unable to use my own hostname
...

Refer meta/recipes-core/initscripts/initscripts-1.0/hostname.sh in oe-core,
add check_hostname.sh and invoke it before postfix start, if the hostname
is invalid, set "localhost" to main.cf.

Signed-off-by: Hongxu Jia <hongxu.jia@windriver.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
Signed-off-by: Joe MacDonald <joe_macdonald@mentor.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/meta-networking/recipes-daemons/postfix/postfix.inc b/meta-networking/recipes-daemons/postfix/postfix.inc
index 6d39570d3..dc652d7da 100644
--- a/meta-networking/recipes-daemons/postfix/postfix.inc
+++ b/meta-networking/recipes-daemons/postfix/postfix.inc
@@ -23,6 +23,7 @@ SRC_URI = "ftp://ftp.porcupine.org/mirrors/postfix-release/official/postfix-${PV
     file://internal_recipient \
     file://postfix.service \
     file://aliasesdb \
+    file://check_hostname.sh \
 "
 
 S = "${WORKDIR}/postfix-${PV}"
@@ -145,6 +146,8 @@ do_install () {
     install -m 644 ${WORKDIR}/main.cf_2.0 ${D}${sysconfdir}/postfix/main.cf
     sed -i 's#@LIBEXECDIR@#${libexecdir}#' ${D}${sysconfdir}/postfix/main.cf
 
+    install -m 755 ${WORKDIR}/check_hostname.sh ${D}${sbindir}/
+
     install -m 755 ${WORKDIR}/postfix ${D}${sysconfdir}/init.d/postfix
     install -m 644 ${WORKDIR}/internal_recipient ${D}${sysconfdir}/postfix/internal_recipient