#include <stdio.h>
char _sibuf[BUFSIZ];
char _sobuf[BUFSIZ];
struct _iobuf _iob[_NFILE] = {
{ _sibuf, 0, _sibuf, _IOREAD, 0},
{ NULL, 0, NULL, _IOWRT, 1},
{NULL, 0, NULL, _IOWRT+_IONBF, 2},
};
/*
* Ptr to end of buffers
*/
struct _iobuf *_lastbuf = { &_iob[_NFILE] };