[dhcp] Add generic facility for using cached network settings

[people/cooldavid/gpxe.git] / src / usr / dhcpmgmt.c

diff --git a/src/usr/dhcpmgmt.c b/src/usr/dhcpmgmt.c
index aa96985..f82a3bb 100644 (file)
--- a/src/usr/dhcpmgmt.c
+++ b/src/usr/dhcpmgmt.c
@@ -55,8 +55,13 @@ int dhcp ( struct net_device *netdev ) {
        printf ( "DHCP (%s ", netdev->name );
        while ( hlen-- )
                printf ( "%02x%c", *(chaddr++), ( hlen ? ':' : ')' ) );
        printf ( "DHCP (%s ", netdev->name );
        while ( hlen-- )
                printf ( "%02x%c", *(chaddr++), ( hlen ? ':' : ')' ) );

-       if ( ( rc = start_dhcp ( &monojob, netdev ) ) == 0 )
+
+       if ( ( rc = start_dhcp ( &monojob, netdev ) ) == 0 ) {

                rc = monojob_wait ( "" );
                rc = monojob_wait ( "" );

+       } else if ( rc > 0 ) {
+               printf ( " using cached\n" );
+               rc = 0;
+       }

 
        return rc;
 }
 
        return rc;
 }