- Res = read(Fd,Buf,min(Size,(unsigned long)sizeof(Buf)));
- if (Res < 0 || (unsigned)Res != min(Size,(unsigned long)sizeof(Buf)))
- return false;
+ unsigned n = sizeof(Buf);
+ if (!ToEOF) n = min(Size,(unsigned long)n);
+ Res = read(Fd,Buf,n);
+ if (Res < 0 || (!ToEOF && (unsigned) Res != n)) // error, or short read
+ return false;
+ if (ToEOF && Res == 0) // EOF
+ break;