FLOCK(f);
if (!f->buf_size) {
saved_buf = f->buf;
- f->buf = internal_buf;
+ f->wpos = f->wbase = f->buf = internal_buf;
f->buf_size = sizeof internal_buf;
+ f->wend = internal_buf + sizeof internal_buf;
}
ret = printf_core(f, fmt, &ap2, nl_arg, nl_type);
if (saved_buf) {