src/sys/miscfs/kernfs/kernfs_vnops.c - diff

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version 1.111, 2005/08/31 09:54:54	version 1.112, 2005/09/01 06:25:26
Line 427 kernfs_xread(kfs, off, bufp, len, wrlen)	Line 427 kernfs_xread(kfs, off, bufp, len, wrlen)
* message buffer header are corrupted, but that'll cause	* message buffer header are corrupted, but that'll cause
* the system to die anyway.	* the system to die anyway.
*/	*/
if (off < 0) {
*wrlen = 0;
return EINVAL;
}
if (off >= msgbufp->msg_bufs) {	if (off >= msgbufp->msg_bufs) {
*wrlen = 0;	*wrlen = 0;
return (0);	return (0);
Line 943 kernfs_read(v)	Line 939 kernfs_read(v)
if (ap->a_vp->v_type == VDIR)	if (ap->a_vp->v_type == VDIR)
return (EOPNOTSUPP);	return (EOPNOTSUPP);

	/* Don't allow negative offsets */
	if (uio->uio_offset < 0)
	return EINVAL;

off = uio->uio_offset;	off = uio->uio_offset;
bf = strbuf;	bf = strbuf;
if ((error = kernfs_xread(kfs, off, &bf, sizeof(strbuf), &len)) == 0)	if ((error = kernfs_xread(kfs, off, &bf, sizeof(strbuf), &len)) == 0)