getkeyval
if(((np = getkeyval("CHAP_N=", pp)) == NULL) ||
((rp = getkeyval("CHAP_R=", pp)) == NULL))
if(((ap = getkeyval("CHAP_A=", pp)) == NULL) ||
((ip = getkeyval("CHAP_I=", pp)) == NULL) ||
((cp = getkeyval("CHAP_C=", pp)) == NULL))