#include "timeoutread.h"

#include "select.h"

#include "error.h"

#include "readwrite.h"

int timeoutread(t,fd,buf,len) int t; int fd; char *buf; int len;

{

  fd_set rfds;

  struct timeval tv;

  tv.tv_sec = t;

  tv.tv_usec = 0;

  FD_ZERO(&rfds);

  FD_SET(fd,&rfds);

  if (select(fd + 1,&rfds,(fd_set *) 0,(fd_set *) 0,&tv) == -1) return -1;

  if (FD_ISSET(fd,&rfds)) return read(fd,buf,len);

  errno = error_timeout;

  return -1;

}