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/* $OpenBSD: freebsd_misc.c,v 1.11 2007/11/28 13:47:02 deraadt Exp $ */
/* $NetBSD: freebsd_misc.c,v 1.2 1996/05/03 17:03:10 christos Exp $ */
/*
* Copyright (c) 1995 Frank van der Linden
* 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 for the NetBSD Project
* by Frank van der Linden
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
/*
* FreeBSD compatibility module. Try to deal with various FreeBSD system calls.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/kernel.h>
#include <sys/file.h>
#include <sys/dirent.h>
#include <sys/filedesc.h>
#include <sys/mman.h>
#include <sys/vnode.h>
#include <sys/syscallargs.h>
#include <compat/freebsd/freebsd_signal.h>
#include <compat/freebsd/freebsd_syscallargs.h>
#include <compat/freebsd/freebsd_util.h>
#include <compat/freebsd/freebsd_rtprio.h>
#include <compat/common/compat_dir.h>
/* just a place holder */
int
freebsd_sys_rtprio(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
#ifdef notyet
struct freebsd_sys_rtprio_args /* {
syscallarg(int) function;
syscallarg(pid_t) pid;
syscallarg(struct freebsd_rtprio *) rtp;
} */ *uap = v;
#endif
return ENOSYS; /* XXX */
}
/*
* Argh.
* The syscalls.master mechanism cannot handle a system call that is in
* two spots in the table.
*/
int
freebsd_sys_poll2(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
return (sys_poll(p, v, retval));
}
/*
* Our madvise is currently dead (always returns EOPNOTSUPP).
*/
int
freebsd_sys_madvise(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
return (0);
}
int freebsd_readdir_callback(void *, struct dirent *, off_t);
struct freebsd_readdir_callback_args {
caddr_t outp;
int resid;
};
int
freebsd_readdir_callback(void *arg, struct dirent *bdp, off_t cookie)
{
struct freebsd_readdir_callback_args *cb = arg;
struct dirent idb;
int error;
if (cb->resid < bdp->d_reclen)
return (ENOMEM);
idb.d_fileno = bdp->d_fileno;
idb.d_reclen = bdp->d_reclen;
idb.d_type = bdp->d_type;
idb.d_namlen = bdp->d_namlen;
strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name));
if ((error = copyout((caddr_t)&idb, cb->outp, bdp->d_reclen)))
return (error);
cb->outp += bdp->d_reclen;
cb->resid -= bdp->d_reclen;
return (0);
}
int
freebsd_sys_getdents(struct proc *p, void *v, register_t *retval)
{
struct freebsd_sys_getdents_args /* {
syscallarg(int) fd;
syscallarg(void *) dirent;
syscallarg(unsigned) count;
} */ *uap = v;
struct vnode *vp;
struct file *fp;
int error;
struct freebsd_readdir_callback_args args;
if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
return (error);
vp = (struct vnode *)fp->f_data;
args.resid = SCARG(uap, count);
args.outp = (caddr_t)SCARG(uap, dirent);
error = readdir_with_callback(fp, &fp->f_offset, args.resid,
freebsd_readdir_callback, &args);
FRELE(fp);
if (error)
return (error);
*retval = SCARG(uap, count) - args.resid;
return (0);
}
#define FBSD_MAP_NOCORE 0x20000
int
freebsd_sys_mmap(struct proc *p, void *v, register_t *retval)
{
struct freebsd_sys_mmap_args /* {
syscallarg(caddr_t) addr;
syscallarg(size_t) len;
syscallarg(int) prot;
syscallarg(int) flags;
syscallarg(int) fd;
syscallarg(long) pad;
syscallarg(off_t) pos;
} */ *uap = v;
SCARG(uap, flags) &= ~FBSD_MAP_NOCORE;
return (sys_mmap(p, uap, retval));
}
struct outsname {
char sysname[32];
char nodename[32];
char release[32];
char version[32];
char machine[32];
};
/* ARGSUSED */
int
compat_freebsd_sys_uname(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct compat_freebsd_sys_uname_args /* {
syscallarg(struct outsname *) name;
} */ *uap = v;
struct outsname outsname;
const char *cp;
char *dp, *ep;
strlcpy(outsname.sysname, ostype, sizeof(outsname.sysname));
strlcpy(outsname.nodename, hostname, sizeof(outsname.nodename));
strlcpy(outsname.release, osrelease, sizeof(outsname.release));
dp = outsname.version;
ep = &outsname.version[sizeof(outsname.version) - 1];
for (cp = version; *cp && *cp != '('; cp++)
;
for (cp++; *cp && *cp != ')' && dp < ep; cp++)
*dp++ = *cp;
for (; *cp && *cp != '#'; cp++)
;
for (; *cp && *cp != ':' && dp < ep; cp++)
*dp++ = *cp;
*dp = '\0';
strlcpy(outsname.machine, MACHINE, sizeof(outsname.machine));
return (copyout((caddr_t)&outsname, (caddr_t)SCARG(uap, name),
sizeof(struct outsname)));
}
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