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NetBSD/sys/compat/common/uipc_syscalls_43.c

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/* $NetBSD: uipc_syscalls_43.c,v 1.11 2000/03/30 11:27:15 augustss Exp $ */
/*
* Copyright (c) 1982, 1986, 1989, 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 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
* SUCH DAMAGE.
*
* @(#)uipc_syscalls.c 8.4 (Berkeley) 2/21/94
*/
#define COMPAT_OLDSOCK /* used by <sys/socket.h> */
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/filedesc.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/fcntl.h>
#include <sys/malloc.h>
#include <sys/syslog.h>
#include <sys/unistd.h>
#include <sys/resourcevar.h>
#include <sys/mount.h>
#include <sys/syscallargs.h>
int
compat_43_sys_accept(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct sys_accept_args /* {
syscallarg(int) s;
syscallarg(caddr_t) name;
syscallarg(int *) anamelen;
} */ *uap = v;
int error;
if ((error = sys_accept(p, uap, retval)) != 0)
return error;
if (SCARG(uap, name)) {
struct sockaddr sa;
if ((error = copyin(SCARG(uap, name), &sa, sizeof(sa))) != 0)
return error;
((struct osockaddr*) &sa)->sa_family = sa.sa_family;
if ((error = copyout(&sa, SCARG(uap, name), sizeof(sa))) != 0)
return error;
}
return 0;
}
int
compat_43_sys_getpeername(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct sys_getpeername_args /* {
syscallarg(int) fdes;
syscallarg(caddr_t) asa;
syscallarg(int *) alen;
} */ *uap = v;
struct sockaddr sa;
int error;
if ((error = sys_getpeername(p, uap, retval)) != 0)
return error;
if ((error = copyin(SCARG(uap, asa), &sa, sizeof(sa))) != 0)
return error;
((struct osockaddr*) &sa)->sa_family = sa.sa_family;
if ((error = copyout(&sa, SCARG(uap, asa), sizeof(sa))) != 0)
return error;
return 0;
}
int
compat_43_sys_getsockname(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct sys_getsockname_args /* {
syscallarg(int) fdes;
syscallarg(caddr_t) asa;
syscallarg(int *) alen;
} */ *uap = v;
struct sockaddr sa;
int error;
if ((error = sys_getsockname(p, uap, retval)) != 0)
return error;
if ((error = copyin(SCARG(uap, asa), &sa, sizeof(sa))) != 0)
return error;
((struct osockaddr*) &sa)->sa_family = sa.sa_family;
if ((error = copyout(&sa, SCARG(uap, asa), sizeof(sa))) != 0)
return error;
return 0;
}
int
compat_43_sys_recv(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_recv_args /* {
syscallarg(int) s;
syscallarg(caddr_t) buf;
syscallarg(int) len;
syscallarg(int) flags;
} */ *uap = v;
struct msghdr msg;
struct iovec aiov;
msg.msg_name = 0;
msg.msg_namelen = 0;
msg.msg_iov = &aiov;
msg.msg_iovlen = 1;
aiov.iov_base = SCARG(uap, buf);
aiov.iov_len = SCARG(uap, len);
msg.msg_control = 0;
msg.msg_flags = SCARG(uap, flags);
return (recvit(p, SCARG(uap, s), &msg, (caddr_t)0, retval));
}
int
compat_43_sys_recvfrom(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct sys_recvfrom_args /* {
syscallarg(int) s;
syscallarg(caddr_t) buf;
syscallarg(size_t) len;
syscallarg(int) flags;
syscallarg(caddr_t) from;
syscallarg(int *) fromlenaddr;
} */ *uap = v;
SCARG(uap, flags) |= MSG_COMPAT;
return (sys_recvfrom(p, uap, retval));
}
/*
* Old recvmsg. This code takes advantage of the fact that the old msghdr
* overlays the new one, missing only the flags, and with the (old) access
* rights where the control fields are now.
*/
int
compat_43_sys_recvmsg(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_recvmsg_args /* {
syscallarg(int) s;
syscallarg(struct omsghdr *) msg;
syscallarg(int) flags;
} */ *uap = v;
struct msghdr msg;
struct iovec aiov[UIO_SMALLIOV], *iov;
int error;
error = copyin((caddr_t)SCARG(uap, msg), (caddr_t)&msg,
sizeof (struct omsghdr));
if (error)
return (error);
if ((u_int)msg.msg_iovlen > UIO_SMALLIOV) {
if ((u_int)msg.msg_iovlen > IOV_MAX)
return (EMSGSIZE);
MALLOC(iov, struct iovec *,
sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV,
M_WAITOK);
} else
iov = aiov;
msg.msg_flags = SCARG(uap, flags) | MSG_COMPAT;
error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov,
(unsigned)(msg.msg_iovlen * sizeof (struct iovec)));
if (error)
goto done;
msg.msg_iov = iov;
error = recvit(p, SCARG(uap, s), &msg,
(caddr_t)&SCARG(uap, msg)->msg_namelen, retval);
if (msg.msg_controllen && error == 0)
error = copyout((caddr_t)&msg.msg_controllen,
(caddr_t)&SCARG(uap, msg)->msg_accrightslen, sizeof (int));
done:
if (iov != aiov)
FREE(iov, M_IOV);
return (error);
}
int
compat_43_sys_send(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_send_args /* {
syscallarg(int) s;
syscallarg(caddr_t) buf;
syscallarg(int) len;
syscallarg(int) flags;
} */ *uap = v;
struct msghdr msg;
struct iovec aiov;
msg.msg_name = 0;
msg.msg_namelen = 0;
msg.msg_iov = &aiov;
msg.msg_iovlen = 1;
aiov.iov_base = SCARG(uap, buf);
aiov.iov_len = SCARG(uap, len);
msg.msg_control = 0;
msg.msg_flags = 0;
return (sendit(p, SCARG(uap, s), &msg, SCARG(uap, flags), retval));
}
int
compat_43_sys_sendmsg(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_43_sys_sendmsg_args /* {
syscallarg(int) s;
syscallarg(caddr_t) msg;
syscallarg(int) flags;
} */ *uap = v;
struct msghdr msg;
struct iovec aiov[UIO_SMALLIOV], *iov;
int error;
error = copyin(SCARG(uap, msg), (caddr_t)&msg,
sizeof (struct omsghdr));
if (error)
return (error);
if ((u_int)msg.msg_iovlen > UIO_SMALLIOV) {
if ((u_int)msg.msg_iovlen > IOV_MAX)
return (EMSGSIZE);
MALLOC(iov, struct iovec *,
sizeof(struct iovec) * (u_int)msg.msg_iovlen, M_IOV,
M_WAITOK);
} else
iov = aiov;
error = copyin((caddr_t)msg.msg_iov, (caddr_t)iov,
(unsigned)(msg.msg_iovlen * sizeof (struct iovec)));
if (error)
goto done;
msg.msg_flags = MSG_COMPAT;
msg.msg_iov = iov;
error = sendit(p, SCARG(uap, s), &msg, SCARG(uap, flags), retval);
done:
if (iov != aiov)
FREE(iov, M_IOV);
return (error);
}
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