getDomainname()v0.22.1

Signed-off-by: Jeff Carr <[email protected]>

1 files changed, 35 insertions, 0 deletions

diff --git a/hostname.go b/hostname.go
index bf4c4a7..9b38d4a 100644
--- a/hostname.go
+++ b/hostname.go
@@ -3,8 +3,11 @@
 package linuxstatus
 
 import (
+	"fmt"
 	"io/ioutil"
+	"strings"
 
+	"go.wit.com/lib/gui/shell"
 	"go.wit.com/log"
 
 	// will try to get this hosts FQDN
@@ -80,6 +83,17 @@ func (ls *LinuxStatus) setHostShort() {
 	}
 }
 
+// getDomainName extracts the domain name from a given hostname
+func getDomainName(hostname string) (string, error) {
+	parts := strings.Split(hostname, ".")
+	if len(parts) < 3 {
+		return "", fmt.Errorf("hostname '%s' is too short to extract a domain name", hostname)
+	}
+	// Join all parts except the first one, which is assumed to be a subdomain
+	domain := strings.Join(parts[1:], ".")
+	return domain, nil
+}
+
 func lookupHostname() {
 	if !me.Ready() {
 		return
@@ -107,6 +121,27 @@ func lookupHostname() {
 	if hostfqdn != hostname {
 		log.Log(WARN, "hostname", hostname, "does not equal fqdn.FqdnHostname()", hostfqdn)
 		// TODO: figure out what is wrong
+		if dn == "(none)" {
+			realdn, err := getDomainName(hostfqdn)
+			if err == nil {
+				log.Log(WARN, "need to run: 'domainname", realdn, "' here")
+				me.changed = true
+				me.hostnameStatus.SetText("FIXING")
+				shell.RunPath("", []string{"domainname", realdn})
+				return
+			} else {
+				log.Log(WARN, "getDomainName() err =", err)
+				log.Log(WARN, "/etc/hostname is too short. let the user set the name here.")
+				// me.changed = true
+				me.hostnameStatus.SetText("INVALID DOMAIN NAME")
+				// return
+			}
+		}
+		log.Log(WARN, "don't know what to do here with domainname")
+		log.Log(WARN, "check that /etc/hostname is valid?")
+		// me.changed = true
+		me.hostnameStatus.SetText("UNKNOWN")
+		// return
 	}
 
 	var test string