cu_fgets
if ((p = cu_fgets(lbuf, sizeof(lbuf), NULL)) == NULL) {
if (cu_fgets(lbuf, sizeof(lbuf), &more))
} while (cu_fgets(p = lbuf, sizeof(lbuf), &more));
while (cu_fgets(lbuf, sizeof(lbuf), NULL)) {
char *cu_fgets(char *, int, int *);