* Copyright (c) 1982, 1986, 1991 Regents of the University of California.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* from: @(#)kern_subr.c 7.7 (Berkeley) 4/15/91
register struct uio
*uio
;
register struct iovec
*iov
;
if (uio
->uio_rw
!= UIO_READ
&& uio
->uio_rw
!= UIO_WRITE
)
if (uio
->uio_segflg
== UIO_USERSPACE
&& uio
->uio_procp
!= curproc
)
while (n
> 0 && uio
->uio_resid
) {
switch (uio
->uio_segflg
) {
if (uio
->uio_rw
== UIO_READ
)
error
= copyout(cp
, iov
->iov_base
, cnt
);
error
= copyin(iov
->iov_base
, cp
, cnt
);
if (uio
->uio_rw
== UIO_READ
)
bcopy((caddr_t
)cp
, iov
->iov_base
, cnt
);
bcopy(iov
->iov_base
, (caddr_t
)cp
, cnt
);
uioapply(func
, arg1
, arg2
, uio
)
register struct uio
*uio
;
register struct iovec
*iov
;
if (uio
->uio_rw
!= UIO_READ
&& uio
->uio_rw
!= UIO_WRITE
)
if (uio
->uio_segflg
== UIO_USERSPACE
&& uio
->uio_procp
!= curproc
)
error
= (*func
)(arg1
, arg2
, uio
->uio_offset
, uio
->uio_rw
,
iov
->iov_base
, &cnt1
, uio
->uio_procp
);
* Give next character to user as result of read.
register struct uio
*uio
;
register struct iovec
*iov
;
if (uio
->uio_iovcnt
== 0)
if (iov
->iov_len
<= 0 || uio
->uio_resid
<= 0) {
switch (uio
->uio_segflg
) {
if (subyte(iov
->iov_base
, c
) < 0)
if (suibyte(iov
->iov_base
, c
) < 0)
register char *src
, *append
;
while (*src
++ = *append
++)
register char *to
, *from
;
for (; *to
= *from
; ++from
, ++to
)
register char *to
, *from
;
for (; cnt
&& (*to
= *from
); --cnt
, ++from
, ++to
)
register const char *s1
, *s2
;
return (*(unsigned char *)s1
- *(unsigned char *)--s2
);
#ifndef lint /* unused except by ct.c, other oddities XXX */
* Get next character written in by user from uio.
register struct iovec
*iov
;
if (uio
->uio_iovcnt
<= 0)
if (--uio
->uio_iovcnt
== 0)
switch (uio
->uio_segflg
) {
c
= fubyte(iov
->iov_base
);
c
= *(u_char
*) iov
->iov_base
;
c
= fuibyte(iov
->iov_base
);