NG_PPPOE_3COM
if (len == strlen(NG_PPPOE_3COM) &&
(strncmp(NG_PPPOE_3COM, s, len) == 0)) {
len += strlen(NG_PPPOE_3COM) + 1;
len = strlen(NG_PPPOE_3COM);
strlcpy(s, NG_PPPOE_3COM, len + 1);
#define NG_PPPOE_NONSTANDARD NG_PPPOE_3COM