seg fault when error in proxy.conf

[A.L.M.Buxey at lboro.ac.uk]

hi,

noted an issue with the reading of proxy.conf, if details
are omitted from home_server section then it segfaults eg

 home_server test0 {
Segmentation fault


when proxy.conf contains

home_server test0 {
                ipaddr = 
                secret = "super-secret"
                port = 1812
                type = auth+acct
                strip
}

A quick check shows similar problem if secret or port is absent but
not sure where else the parser breaks with a similar fault.

alan