Symbol: check_month
usr.bin/calendar/parsedata.c
247
if (check_month(p1, &len, &di->month) ||
usr.bin/calendar/parsedata.c
248
(check_month(p2, &len, &di->month) && (p2 = p1))) {
usr.bin/calendar/parsedata.c
63
static bool check_month(const char *s, size_t *len, int *month);