l_strnstart(netdissect_options *ndo, const char *tstr1, u_int tl1,
const char *str2, u_int l2)
{
- if (!ND_TTEST2(*str2, tl1)) {
+ if (!ND_TTEST_LEN(str2, tl1)) {
/*
* We don't have tl1 bytes worth of captured data
* for the string, so we can't check for this