kamctl: relaxed regex check on aor and sip uri

- it required a dot (.), not valid for ipv6 and single word domains
(e.g., localhost)
- now just match on USERNAME_RE@.+

(cherry picked from commit 94e9d47)
(cherry picked from commit a77c4a9)

utils/kamctl/kamctl.base

@@ -633,7 +633,7 @@ in SIP_DOMAIN"
 
 # check the parameter if it is a valid address of record (user@domain)
 check_aor() {
-	echo "$1" | $EGREP "^$USERNAME_RE@.*\..*" >/dev/null
+	echo "$1" | $EGREP "^$USERNAME_RE@.+" >/dev/null
 	if [ $? -ne 0 ] ; then
 		echo "error: invalid AoR: $1" > /dev/stderr
 		exit 1
@@ -642,7 +642,7 @@ check_aor() {
 
 # check the parameter if it is a valid address of record (user@domain)
 is_aor() {
-	echo "$1" | $EGREP "^$USERNAME_RE@.*\..*" >/dev/null
+	echo "$1" | $EGREP "^$USERNAME_RE@.+" >/dev/null
 	if [ $? -ne 0 ] ; then
 		false
 	else
@@ -652,7 +652,7 @@ is_aor() {
 
 # check the parameter if it is a valid SIP address of record (sip:user@domain)
 check_sipaor() {
-	echo "$1" | $EGREP "^sip(s)?:$USERNAME_RE@.*\..*" >/dev/null
+	echo "$1" | $EGREP "^sip(s)?:$USERNAME_RE@.+" >/dev/null
 	if [ $? -ne 0 ] ; then
 		echo "error: invalid SIP AoR: $1" > /dev/stderr
 		exit 1
@@ -663,7 +663,7 @@ check_sipaor() {
 # quite simplified now -- it captures just very basic
 # errors
 check_uri() {
-	echo "$1" | $EGREP "^sip(s)?:($USERNAME_RE@)?.*\..*"  > /dev/null
+	echo "$1" | $EGREP "^sip(s)?:($USERNAME_RE@)?.+"  > /dev/null
 	if [ $? -ne 0 ] ; then
 		echo "error: invalid SIP URI: $1" > /dev/stderr
 		exit 1