at_print
int at_print(char *, size_t, const struct at_addr *);
return at_print(buf, len, aa);
at_print(abuf, sizeof(abuf), aa);
ATF_TP_ADD_TC(tp, at_print);
ATF_TC(at_print);
ATF_TC_HEAD(at_print, tc)
ATF_TC_BODY(at_print, tc)
r = at_print(buf, l, &tst[i].ia);
r = at_print(buf, l, &tst[i].ia);