#define MININT (1 << (sizeof(int) * 8 - 1)) #define MAXCHUNK (-(MININT + 1)) /* Highest count we write(2). */ /* * We don't have to worry about byte order here. * Just read "cnt" bytes from file-descriptor "fd". */ int rd_bytes(fd, string, cnt) register char *string; register long cnt; { while (cnt) { register int n = cnt >= MAXCHUNK ? MAXCHUNK : cnt; if (read(fd, string, n) != n) rd_fatal(); string += n; cnt -= n; } }