220 lines
6.4 KiB
C
220 lines
6.4 KiB
C
/* $NetBSD: osf1_generic.c,v 1.8 2005/12/11 12:20:23 christos Exp $ */
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/*
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* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: osf1_generic.c,v 1.8 2005/12/11 12:20:23 christos Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/malloc.h>
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#include <sys/mman.h>
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#include <sys/mount.h>
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#include <sys/sa.h>
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#include <sys/syscallargs.h>
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#include <sys/exec.h>
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#include <compat/osf1/osf1.h>
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#include <compat/osf1/osf1_syscallargs.h>
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#include <compat/osf1/osf1_cvt.h>
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/*
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* The structures end up being the same... but we can't be sure that
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* the other word of our iov_len is zero!
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*/
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int
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osf1_sys_readv(l, v, retval)
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struct lwp *l;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_readv_args *uap = v;
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struct proc *p = l->l_proc;
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struct sys_readv_args a;
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struct osf1_iovec *oio;
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struct iovec *nio;
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caddr_t sg = stackgap_init(p, 0);
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int error, osize, nsize, i;
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if (SCARG(uap, iovcnt) > (STACKGAPLEN / sizeof (struct iovec)))
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return (EINVAL);
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osize = SCARG(uap, iovcnt) * sizeof (struct osf1_iovec);
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nsize = SCARG(uap, iovcnt) * sizeof (struct iovec);
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oio = malloc(osize, M_TEMP, M_WAITOK);
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nio = malloc(nsize, M_TEMP, M_WAITOK);
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error = 0;
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if ((error = copyin(SCARG(uap, iovp), oio, osize)))
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goto punt;
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for (i = 0; i < SCARG(uap, iovcnt); i++) {
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nio[i].iov_base = oio[i].iov_base;
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nio[i].iov_len = oio[i].iov_len;
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}
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SCARG(&a, fd) = SCARG(uap, fd);
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SCARG(&a, iovp) = stackgap_alloc(p, &sg, nsize);
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SCARG(&a, iovcnt) = SCARG(uap, iovcnt);
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if ((error = copyout(nio, __UNCONST(SCARG(&a, iovp)), nsize)))
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goto punt;
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error = sys_readv(l, &a, retval);
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punt:
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free(oio, M_TEMP);
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free(nio, M_TEMP);
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return (error);
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}
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int
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osf1_sys_select(l, v, retval)
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struct lwp *l;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_select_args *uap = v;
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struct proc *p = l->l_proc;
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struct sys_select_args a;
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struct osf1_timeval otv;
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struct timeval tv;
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int error;
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caddr_t sg;
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SCARG(&a, nd) = SCARG(uap, nd);
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SCARG(&a, in) = SCARG(uap, in);
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SCARG(&a, ou) = SCARG(uap, ou);
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SCARG(&a, ex) = SCARG(uap, ex);
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error = 0;
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if (SCARG(uap, tv) == NULL)
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SCARG(&a, tv) = NULL;
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else {
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sg = stackgap_init(p, 0);
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SCARG(&a, tv) = stackgap_alloc(p, &sg, sizeof tv);
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/* get the OSF/1 timeval argument */
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error = copyin((caddr_t)SCARG(uap, tv),
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(caddr_t)&otv, sizeof otv);
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if (error == 0) {
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/* fill in and copy out the NetBSD timeval */
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memset(&tv, 0, sizeof tv);
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tv.tv_sec = otv.tv_sec;
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tv.tv_usec = otv.tv_usec;
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error = copyout((caddr_t)&tv,
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(caddr_t)SCARG(&a, tv), sizeof tv);
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}
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}
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if (error == 0)
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error = sys_select(l, &a, retval);
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return (error);
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}
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int
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osf1_sys_writev(l, v, retval)
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struct lwp *l;
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void *v;
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register_t *retval;
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{
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struct osf1_sys_writev_args *uap = v;
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struct proc *p = l->l_proc;
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struct sys_writev_args a;
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struct osf1_iovec *oio;
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struct iovec *nio;
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caddr_t sg = stackgap_init(p, 0);
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int error, osize, nsize, i;
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if (SCARG(uap, iovcnt) > (STACKGAPLEN / sizeof (struct iovec)))
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return (EINVAL);
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osize = SCARG(uap, iovcnt) * sizeof (struct osf1_iovec);
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nsize = SCARG(uap, iovcnt) * sizeof (struct iovec);
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oio = malloc(osize, M_TEMP, M_WAITOK);
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nio = malloc(nsize, M_TEMP, M_WAITOK);
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error = 0;
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if ((error = copyin(SCARG(uap, iovp), oio, osize)))
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goto punt;
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for (i = 0; i < SCARG(uap, iovcnt); i++) {
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nio[i].iov_base = oio[i].iov_base;
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nio[i].iov_len = oio[i].iov_len;
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}
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SCARG(&a, fd) = SCARG(uap, fd);
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SCARG(&a, iovp) = stackgap_alloc(p, &sg, nsize);
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SCARG(&a, iovcnt) = SCARG(uap, iovcnt);
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if ((error = copyout(nio, __UNCONST(SCARG(&a, iovp)), nsize)))
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goto punt;
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error = sys_writev(l, &a, retval);
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punt:
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free(oio, M_TEMP);
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free(nio, M_TEMP);
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return (error);
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}
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