1int read_lfos(
int file,
char *ptr,
int len);
4int read(
int file,
char *ptr,
int len) {
8int write(
int file,
char *ptr,
int len) {
int read_lfos(int file, char *ptr, int len)
int write_lfos(int file, char *ptr, int len)
int read(int file, char *ptr, int len)
int write(int file, char *ptr, int len)