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Show First 20 Lines • Show All 73 Lines • ▼ Show 20 Lines	read(int fd, void *dest, size_t bcount)

if ((unsigned)fd >= SOPEN_MAX \|\| !(f->f_flags & F_READ)) {		if ((unsigned)fd >= SOPEN_MAX \|\| !(f->f_flags & F_READ)) {
errno = EBADF;		errno = EBADF;
return (-1);		return (-1);
}		}
if (f->f_flags & F_RAW) {		if (f->f_flags & F_RAW) {
twiddle(4);		twiddle(4);
errno = (f->f_dev->dv_strategy)(f->f_devdata, F_READ,		errno = (f->f_dev->dv_strategy)(f->f_devdata, F_READ,
btodb(f->f_offset), bcount, dest, &resid);		btodb(f->f_offset), 0, bcount, dest, &resid);
if (errno)		if (errno)
return (-1);		return (-1);
f->f_offset += resid;		f->f_offset += resid;
return (resid);		return (resid);
}		}

/*		/*
* Optimise reads from regular files using a readahead buffer.		* Optimise reads from regular files using a readahead buffer.
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