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NetBSD/sys/compat/ibcs2/ibcs2_misc.c

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/* $NetBSD: ibcs2_misc.c,v 1.44 2000/02/27 17:30:10 matt Exp $ */
/*
* Copyright (c) 1994, 1995, 1998 Scott Bartram
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* 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, Lawrence Berkeley Laboratory.
*
* 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.
*
* from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp
*
* @(#)sun_misc.c 8.1 (Berkeley) 6/18/93
*/
/*
* IBCS2 compatibility module.
*
* IBCS2 system calls that are implemented differently in BSD are
* handled here.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/dirent.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/malloc.h>
#include <sys/mbuf.h>
#include <sys/mman.h>
#include <sys/mount.h>
#include <sys/reboot.h>
#include <sys/resource.h>
#include <sys/resourcevar.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/syslog.h>
#include <sys/time.h>
#include <sys/times.h>
#include <sys/vnode.h>
#include <sys/uio.h>
#include <sys/wait.h>
#include <sys/utsname.h>
#include <sys/unistd.h>
#include <netinet/in.h>
#include <sys/syscallargs.h>
#include <miscfs/specfs/specdev.h>
#include <vm/vm.h>
#include <sys/sysctl.h> /* must be included after vm.h */
#if defined(__i386__)
#include <i386/include/reg.h>
#endif
#include <compat/ibcs2/ibcs2_types.h>
#include <compat/ibcs2/ibcs2_dirent.h>
#include <compat/ibcs2/ibcs2_fcntl.h>
#include <compat/ibcs2/ibcs2_mman.h>
#include <compat/ibcs2/ibcs2_time.h>
#include <compat/ibcs2/ibcs2_signal.h>
#include <compat/ibcs2/ibcs2_timeb.h>
#include <compat/ibcs2/ibcs2_unistd.h>
#include <compat/ibcs2/ibcs2_utsname.h>
#include <compat/ibcs2/ibcs2_util.h>
#include <compat/ibcs2/ibcs2_utime.h>
#include <compat/ibcs2/ibcs2_syscallargs.h>
#include <compat/ibcs2/ibcs2_sysi86.h>
extern struct emul emul_ibcs2_coff, emul_ibcs2_xout, emul_ibcs2_elf;
int
ibcs2_sys_ulimit(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_ulimit_args /* {
syscallarg(int) cmd;
syscallarg(int) newlimit;
} */ *uap = v;
#ifdef notyet
int error;
struct rlimit rl;
struct sys_setrlimit_args sra;
#endif
#define IBCS2_GETFSIZE 1
#define IBCS2_SETFSIZE 2
#define IBCS2_GETPSIZE 3
#define IBCS2_GETDTABLESIZE 4
switch (SCARG(uap, cmd)) {
case IBCS2_GETFSIZE:
*retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur;
return 0;
case IBCS2_SETFSIZE: /* XXX - fix this */
#ifdef notyet
rl.rlim_cur = SCARG(uap, newlimit);
SCARG(&sra, which) = RLIMIT_FSIZE;
SCARG(&sra, rlp) = &rl;
error = setrlimit(p, &sra, retval);
if (!error)
*retval = p->p_rlimit[RLIMIT_FSIZE].rlim_cur;
else
DPRINTF(("failed "));
return error;
#else
*retval = SCARG(uap, newlimit);
return 0;
#endif
case IBCS2_GETPSIZE:
*retval = p->p_rlimit[RLIMIT_RSS].rlim_cur; /* XXX */
return 0;
case IBCS2_GETDTABLESIZE:
SCARG(uap, cmd) = IBCS2_SC_OPEN_MAX;
return ibcs2_sys_sysconf(p, uap, retval);
default:
return ENOSYS;
}
}
int
ibcs2_sys_waitsys(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
#if defined(__i386__)
struct ibcs2_sys_waitsys_args /* {
syscallarg(int) a1;
syscallarg(int) a2;
syscallarg(int) a3;
} */ *uap = v;
#endif
int error;
struct sys_wait4_args w4;
caddr_t sg;
sg = stackgap_init(p->p_emul);
SCARG(&w4, rusage) = NULL;
SCARG(&w4, status) = stackgap_alloc(&sg, sizeof(int));
#if defined(__i386__)
#define WAITPID_EFLAGS 0x8c4 /* OF, SF, ZF, PF */
if ((p->p_md.md_regs->tf_eflags & WAITPID_EFLAGS) == WAITPID_EFLAGS) {
/* waitpid */
SCARG(&w4, pid) = SCARG(uap, a1);
SCARG(&w4, options) = SCARG(uap, a3);
} else {
#endif
/* wait */
SCARG(&w4, pid) = WAIT_ANY;
SCARG(&w4, options) = 0;
#if defined(__i386__)
}
#endif
if ((error = sys_wait4(p, &w4, retval)) != 0)
return error;
return copyin((caddr_t)SCARG(&w4, status), (caddr_t)&retval[1],
sizeof(int));
}
int
ibcs2_sys_execv(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_execv_args /* {
syscallarg(const char *) path;
syscallarg(char **) argp;
} */ *uap = v;
struct sys_execve_args ap;
caddr_t sg;
sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, argp) = SCARG(uap, argp);
SCARG(&ap, envp) = NULL;
return sys_execve(p, &ap, retval);
}
int
ibcs2_sys_execve(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_execve_args /* {
syscallarg(const char *) path;
syscallarg(char **) argp;
syscallarg(char **) envp;
} */ *uap = v;
struct sys_execve_args ap;
caddr_t sg;
sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, argp) = SCARG(uap, argp);
SCARG(&ap, envp) = SCARG(uap, envp);
return sys_execve(p, &ap, retval);
}
int
ibcs2_sys_umount(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_umount_args /* {
syscallarg(char *) name;
} */ *uap = v;
struct sys_unmount_args um;
SCARG(&um, path) = SCARG(uap, name);
SCARG(&um, flags) = 0;
return sys_unmount(p, &um, retval);
}
int
ibcs2_sys_mount(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
#ifdef notyet
struct ibcs2_sys_mount_args /* {
syscallarg(char *) special;
syscallarg(char *) dir;
syscallarg(int) flags;
syscallarg(int) fstype;
syscallarg(char *) data;
syscallarg(int) len;
} */ *uap = v;
int oflags = SCARG(uap, flags), nflags, error;
char fsname[MFSNAMELEN];
if (oflags & (IBCS2_MS_NOSUB | IBCS2_MS_SYS5))
return (EINVAL);
if ((oflags & IBCS2_MS_NEWTYPE) == 0)
return (EINVAL);
nflags = 0;
if (oflags & IBCS2_MS_RDONLY)
nflags |= MNT_RDONLY;
if (oflags & IBCS2_MS_NOSUID)
nflags |= MNT_NOSUID;
if (oflags & IBCS2_MS_REMOUNT)
nflags |= MNT_UPDATE;
SCARG(uap, flags) = nflags;
if (error = copyinstr((caddr_t)SCARG(uap, type), fsname, sizeof fsname,
(u_int *)0))
return (error);
if (strncmp(fsname, "4.2", sizeof fsname) == 0) {
SCARG(uap, type) = (caddr_t)STACK_ALLOC();
if (error = copyout("ffs", SCARG(uap, type), sizeof("ffs")))
return (error);
} else if (strncmp(fsname, "nfs", sizeof fsname) == 0) {
struct ibcs2_nfs_args sna;
struct sockaddr_in sain;
struct nfs_args na;
struct sockaddr sa;
if (error = copyin(SCARG(uap, data), &sna, sizeof sna))
return (error);
if (error = copyin(sna.addr, &sain, sizeof sain))
return (error);
memcpy(&sa, &sain, sizeof sa);
sa.sa_len = sizeof(sain);
SCARG(uap, data) = (caddr_t)STACK_ALLOC();
na.addr = (struct sockaddr *)((int)SCARG(uap, data) + sizeof na);
na.sotype = SOCK_DGRAM;
na.proto = IPPROTO_UDP;
na.fh = (nfsv2fh_t *)sna.fh;
na.flags = sna.flags;
na.wsize = sna.wsize;
na.rsize = sna.rsize;
na.timeo = sna.timeo;
na.retrans = sna.retrans;
na.hostname = sna.hostname;
if (error = copyout(&sa, na.addr, sizeof sa))
return (error);
if (error = copyout(&na, SCARG(uap, data), sizeof na))
return (error);
}
return (sys_mount(p, uap, retval));
#else
return EINVAL;
#endif
}
/*
* Read iBCS2-style directory entries. We suck them into kernel space so
* that they can be massaged before being copied out to user code. Like
* SunOS, we squish out `empty' entries.
*
* This is quite ugly, but what do you expect from compatibility code?
*/
int
ibcs2_sys_getdents(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
register struct ibcs2_sys_getdents_args /* {
syscallarg(int) fd;
syscallarg(char *) buf;
syscallarg(int) nbytes;
} */ *uap = v;
register struct dirent *bdp;
struct vnode *vp;
caddr_t inp, buf; /* BSD-format */
int len, reclen; /* BSD-format */
caddr_t outp; /* iBCS2-format */
int resid, ibcs2_reclen;/* iBCS2-format */
struct file *fp;
struct uio auio;
struct iovec aiov;
struct ibcs2_dirent idb;
off_t off; /* true file offset */
int buflen, error, eofflag;
off_t *cookiebuf = NULL, *cookie;
int ncookies;
/* getvnode() will use the descriptor for us */
if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
return (error);
if ((fp->f_flag & FREAD) == 0) {
error = EBADF;
goto out1;
}
vp = (struct vnode *)fp->f_data;
if (vp->v_type != VDIR) {
error = EINVAL;
goto out1;
}
buflen = min(MAXBSIZE, SCARG(uap, nbytes));
buf = malloc(buflen, M_TEMP, M_WAITOK);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
off = fp->f_offset;
again:
aiov.iov_base = buf;
aiov.iov_len = buflen;
auio.uio_iov = &aiov;
auio.uio_iovcnt = 1;
auio.uio_rw = UIO_READ;
auio.uio_segflg = UIO_SYSSPACE;
auio.uio_procp = p;
auio.uio_resid = buflen;
auio.uio_offset = off;
/*
* First we read into the malloc'ed buffer, then
* we massage it into user space, one record at a time.
*/
error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
&ncookies);
if (error)
goto out;
inp = buf;
outp = SCARG(uap, buf);
resid = SCARG(uap, nbytes);
if ((len = buflen - auio.uio_resid) == 0)
goto eof;
for (cookie = cookiebuf; len > 0; len -= reclen) {
bdp = (struct dirent *)inp;
reclen = bdp->d_reclen;
if (reclen & 3)
panic("ibcs2_getdents: bad reclen");
if ((*cookie >> 32) != 0) {
compat_offseterr(vp, "ibcs2_getdents");
error = EINVAL;
goto out;
}
if (bdp->d_fileno == 0) {
inp += reclen; /* it is a hole; squish it out */
off = *cookie++;
continue;
}
ibcs2_reclen = IBCS2_RECLEN(&idb, bdp->d_namlen);
if (reclen > len || resid < ibcs2_reclen) {
/* entry too big for buffer, so just stop */
outp++;
break;
}
off = *cookie++; /* each entry points to the next */
/*
* Massage in place to make a iBCS2-shaped dirent (otherwise
* we have to worry about touching user memory outside of
* the copyout() call).
*/
idb.d_ino = (ibcs2_ino_t)bdp->d_fileno;
idb.d_off = (ibcs2_off_t)off;
idb.d_reclen = (u_short)ibcs2_reclen;
strcpy(idb.d_name, bdp->d_name);
error = copyout(&idb, outp, ibcs2_reclen);
if (error)
goto out;
/* advance past this real entry */
inp += reclen;
/* advance output past iBCS2-shaped entry */
outp += ibcs2_reclen;
resid -= ibcs2_reclen;
}
/* if we squished out the whole block, try again */
if (outp == SCARG(uap, buf))
goto again;
fp->f_offset = off; /* update the vnode offset */
eof:
*retval = SCARG(uap, nbytes) - resid;
out:
VOP_UNLOCK(vp, 0);
if (cookiebuf)
free(cookiebuf, M_TEMP);
free(buf, M_TEMP);
out1:
FILE_UNUSE(fp, p);
return (error);
}
int
ibcs2_sys_read(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_read_args /* {
syscallarg(int) fd;
syscallarg(char *) buf;
syscallarg(u_int) nbytes;
} */ *uap = v;
register struct dirent *bdp;
struct vnode *vp;
caddr_t inp, buf; /* BSD-format */
int len, reclen; /* BSD-format */
caddr_t outp; /* iBCS2-format */
int resid, ibcs2_reclen;/* iBCS2-format */
struct file *fp;
struct uio auio;
struct iovec aiov;
struct ibcs2_direct {
ibcs2_ino_t ino;
char name[14];
} idb;
off_t off; /* true file offset */
int buflen, error, eofflag, size;
off_t *cookiebuf = NULL, *cookie;
int ncookies;
/* getvnode() will use the descriptor for us */
if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0) {
if (error == EINVAL)
return sys_read(p, uap, retval);
else
return error;
}
if ((fp->f_flag & FREAD) == 0) {
error = EBADF;
goto out1;
}
vp = (struct vnode *)fp->f_data;
if (vp->v_type != VDIR) {
FILE_UNUSE(fp, p);
return sys_read(p, uap, retval);
}
buflen = min(MAXBSIZE, SCARG(uap, nbytes));
buf = malloc(buflen, M_TEMP, M_WAITOK);
vn_lock(vp, LK_EXCLUSIVE | LK_RETRY);
off = fp->f_offset;
again:
aiov.iov_base = buf;
aiov.iov_len = buflen;
auio.uio_iov = &aiov;
auio.uio_iovcnt = 1;
auio.uio_rw = UIO_READ;
auio.uio_segflg = UIO_SYSSPACE;
auio.uio_procp = p;
auio.uio_resid = buflen;
auio.uio_offset = off;
/*
* First we read into the malloc'ed buffer, then
* we massage it into user space, one record at a time.
*/
error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf,
&ncookies);
if (error)
goto out;
inp = buf;
outp = SCARG(uap, buf);
resid = SCARG(uap, nbytes);
if (eofflag || (len = buflen - auio.uio_resid) == 0)
goto eof;
for (cookie = cookiebuf; len > 0 && resid > 0; len -= reclen) {
bdp = (struct dirent *)inp;
reclen = bdp->d_reclen;
if (reclen & 3)
panic("ibcs2_read");
off = *cookie++; /* each entry points to the next */
if ((off >> 32) != 0) {
error = EINVAL;
goto out;
}
if (bdp->d_fileno == 0) {
inp += reclen; /* it is a hole; squish it out */
continue;
}
ibcs2_reclen = 16;
if (reclen > len || resid < ibcs2_reclen) {
/* entry too big for buffer, so just stop */
outp++;
break;
}
/*
* Massage in place to make a iBCS2-shaped dirent (otherwise
* we have to worry about touching user memory outside of
* the copyout() call).
*
* TODO: if length(filename) > 14, then break filename into
* multiple entries and set inode = 0xffff except last
*/
idb.ino = (bdp->d_fileno > 0xfffe) ? 0xfffe : bdp->d_fileno;
(void)copystr(bdp->d_name, idb.name, 14, &size);
memset(idb.name + size, 0, 14 - size);
error = copyout(&idb, outp, ibcs2_reclen);
if (error)
goto out;
/* advance past this real entry */
inp += reclen;
/* advance output past iBCS2-shaped entry */
outp += ibcs2_reclen;
resid -= ibcs2_reclen;
}
/* if we squished out the whole block, try again */
if (outp == SCARG(uap, buf))
goto again;
fp->f_offset = off; /* update the vnode offset */
eof:
*retval = SCARG(uap, nbytes) - resid;
out:
VOP_UNLOCK(vp, 0);
if (cookiebuf)
free(cookiebuf, M_TEMP);
free(buf, M_TEMP);
out1:
FILE_UNUSE(fp, p);
return (error);
}
int
ibcs2_sys_mknod(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_mknod_args /* {
syscallarg(const char *) path;
syscallarg(int) mode;
syscallarg(int) dev;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_CREAT(p, &sg, SCARG(uap, path));
if (S_ISFIFO(SCARG(uap, mode))) {
struct sys_mkfifo_args ap;
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, mode) = SCARG(uap, mode);
return sys_mkfifo(p, uap, retval);
} else {
struct sys_mknod_args ap;
SCARG(&ap, path) = SCARG(uap, path);
SCARG(&ap, mode) = SCARG(uap, mode);
SCARG(&ap, dev) = SCARG(uap, dev);
return sys_mknod(p, &ap, retval);
}
}
int
ibcs2_sys_getgroups(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_getgroups_args /* {
syscallarg(int) gidsetsize;
syscallarg(ibcs2_gid_t *) gidset;
} */ *uap = v;
int error, i;
ibcs2_gid_t *iset = NULL;
struct sys_getgroups_args sa;
gid_t *gp;
caddr_t sg = stackgap_init(p->p_emul);
SCARG(&sa, gidsetsize) = SCARG(uap, gidsetsize);
if (SCARG(uap, gidsetsize)) {
SCARG(&sa, gidset) = stackgap_alloc(&sg, NGROUPS_MAX *
sizeof(gid_t *));
iset = stackgap_alloc(&sg, SCARG(uap, gidsetsize) *
sizeof(ibcs2_gid_t));
}
if ((error = sys_getgroups(p, &sa, retval)) != 0)
return error;
for (i = 0, gp = SCARG(&sa, gidset); i < retval[0]; i++)
iset[i] = (ibcs2_gid_t)*gp++;
if (retval[0] && (error = copyout((caddr_t)iset,
(caddr_t)SCARG(uap, gidset),
sizeof(ibcs2_gid_t) * retval[0])))
return error;
return 0;
}
int
ibcs2_sys_setgroups(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_setgroups_args /* {
syscallarg(int) gidsetsize;
syscallarg(ibcs2_gid_t *) gidset;
} */ *uap = v;
int error, i;
ibcs2_gid_t *iset;
struct sys_setgroups_args sa;
gid_t *gp;
caddr_t sg = stackgap_init(p->p_emul);
SCARG(&sa, gidsetsize) = SCARG(uap, gidsetsize);
gp = stackgap_alloc(&sg, SCARG(&sa, gidsetsize) * sizeof(gid_t *));
iset = stackgap_alloc(&sg, SCARG(&sa, gidsetsize) *
sizeof(ibcs2_gid_t *));
if (SCARG(&sa, gidsetsize)) {
error = copyin((caddr_t)SCARG(uap, gidset), (caddr_t)iset,
sizeof(ibcs2_gid_t *) * SCARG(uap, gidsetsize));
if (error)
return error;
}
for (i = 0; i < SCARG(&sa, gidsetsize); i++)
gp[i]= (gid_t)iset[i];
SCARG(&sa, gidset) = gp;
return sys_setgroups(p, &sa, retval);
}
int
ibcs2_sys_setuid(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_setuid_args /* {
syscallarg(int) uid;
} */ *uap = v;
struct sys_setuid_args sa;
SCARG(&sa, uid) = (uid_t)SCARG(uap, uid);
return sys_setuid(p, &sa, retval);
}
int
ibcs2_sys_setgid(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_setgid_args /* {
syscallarg(int) gid;
} */ *uap = v;
struct sys_setgid_args sa;
SCARG(&sa, gid) = (gid_t)SCARG(uap, gid);
return sys_setgid(p, &sa, retval);
}
int
xenix_sys_ftime(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct xenix_sys_ftime_args /* {
syscallarg(struct xenix_timeb *) tp;
} */ *uap = v;
struct timeval tv;
struct xenix_timeb itb;
microtime(&tv);
itb.time = tv.tv_sec;
itb.millitm = (tv.tv_usec / 1000);
/* NetBSD has no kernel notion of timezone -- fake it. */
itb.timezone = 0;
itb.dstflag = 0;
return copyout((caddr_t)&itb, (caddr_t)SCARG(uap, tp), xenix_timeb_len);
}
int
ibcs2_sys_time(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_time_args /* {
syscallarg(ibcs2_time_t *) tp;
} */ *uap = v;
struct timeval tv;
microtime(&tv);
*retval = tv.tv_sec;
if (p->p_emul != &emul_ibcs2_xout && SCARG(uap, tp))
return copyout((caddr_t)&tv.tv_sec, (caddr_t)SCARG(uap, tp),
sizeof(ibcs2_time_t));
else
return 0;
}
int
ibcs2_sys_pathconf(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_pathconf_args /* {
syscallarg(char *) path;
syscallarg(int) name;
} */ *uap = v;
SCARG(uap, name)++; /* iBCS2 _PC_* defines are offset by one */
return sys_pathconf(p, uap, retval);
}
int
ibcs2_sys_fpathconf(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_fpathconf_args /* {
syscallarg(int) fd;
syscallarg(int) name;
} */ *uap = v;
SCARG(uap, name)++; /* iBCS2 _PC_* defines are offset by one */
return sys_fpathconf(p, uap, retval);
}
int
ibcs2_sys_sysconf(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_sysconf_args /* {
syscallarg(int) name;
} */ *uap = v;
int mib[2], value, len, error;
struct sys___sysctl_args sa;
struct sys_getrlimit_args ga;
switch(SCARG(uap, name)) {
case IBCS2_SC_ARG_MAX:
mib[1] = KERN_ARGMAX;
break;
case IBCS2_SC_CHILD_MAX:
{
caddr_t sg = stackgap_init(p->p_emul);
SCARG(&ga, which) = RLIMIT_NPROC;
SCARG(&ga, rlp) = stackgap_alloc(&sg, sizeof(struct rlimit *));
if ((error = sys_getrlimit(p, &ga, retval)) != 0)
return error;
*retval = SCARG(&ga, rlp)->rlim_cur;
return 0;
}
case IBCS2_SC_CLK_TCK:
*retval = hz;
return 0;
case IBCS2_SC_NGROUPS_MAX:
mib[1] = KERN_NGROUPS;
break;
case IBCS2_SC_OPEN_MAX:
{
caddr_t sg = stackgap_init(p->p_emul);
SCARG(&ga, which) = RLIMIT_NOFILE;
SCARG(&ga, rlp) = stackgap_alloc(&sg, sizeof(struct rlimit *));
if ((error = sys_getrlimit(p, &ga, retval)) != 0)
return error;
*retval = SCARG(&ga, rlp)->rlim_cur;
return 0;
}
case IBCS2_SC_JOB_CONTROL:
mib[1] = KERN_JOB_CONTROL;
break;
case IBCS2_SC_SAVED_IDS:
mib[1] = KERN_SAVED_IDS;
break;
case IBCS2_SC_VERSION:
mib[1] = KERN_POSIX1;
break;
case IBCS2_SC_PASS_MAX:
*retval = 128; /* XXX - should we create PASS_MAX ? */
return 0;
case IBCS2_SC_XOPEN_VERSION:
*retval = 2; /* XXX: What should that be? */
return 0;
default:
return EINVAL;
}
mib[0] = CTL_KERN;
len = sizeof(value);
SCARG(&sa, name) = mib;
SCARG(&sa, namelen) = 2;
SCARG(&sa, old) = &value;
SCARG(&sa, oldlenp) = &len;
SCARG(&sa, new) = NULL;
SCARG(&sa, newlen) = 0;
if ((error = sys___sysctl(p, &sa, retval)) != 0)
return error;
*retval = value;
return 0;
}
int
ibcs2_sys_alarm(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_alarm_args /* {
syscallarg(unsigned) sec;
} */ *uap = v;
int error;
struct itimerval *itp, *oitp;
struct sys_setitimer_args sa;
caddr_t sg = stackgap_init(p->p_emul);
itp = stackgap_alloc(&sg, sizeof(*itp));
oitp = stackgap_alloc(&sg, sizeof(*oitp));
timerclear(&itp->it_interval);
itp->it_value.tv_sec = SCARG(uap, sec);
itp->it_value.tv_usec = 0;
SCARG(&sa, which) = ITIMER_REAL;
SCARG(&sa, itv) = itp;
SCARG(&sa, oitv) = oitp;
error = sys_setitimer(p, &sa, retval);
if (error)
return error;
if (oitp->it_value.tv_usec)
oitp->it_value.tv_sec++;
*retval = oitp->it_value.tv_sec;
return 0;
}
int
ibcs2_sys_getmsg(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
#ifdef notyet
struct ibcs2_sys_getmsg_args /* {
syscallarg(int) fd;
syscallarg(struct ibcs2_stropts *) ctl;
syscallarg(struct ibcs2_stropts *) dat;
syscallarg(int *) flags;
} */ *uap = v;
#endif
return 0;
}
int
ibcs2_sys_putmsg(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
#ifdef notyet
struct ibcs2_sys_putmsg_args /* {
syscallarg(int) fd;
syscallarg(struct ibcs2_stropts *) ctl;
syscallarg(struct ibcs2_stropts *) dat;
syscallarg(int) flags;
} */ *uap = v;
#endif
return 0;
}
int
ibcs2_sys_times(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_times_args /* {
syscallarg(struct tms *) tp;
} */ *uap = v;
int error;
struct sys_getrusage_args ga;
struct tms tms;
struct timeval t;
caddr_t sg = stackgap_init(p->p_emul);
struct rusage *ru = stackgap_alloc(&sg, sizeof(*ru));
#define CONVTCK(r) (r.tv_sec * hz + r.tv_usec / (1000000 / hz))
SCARG(&ga, who) = RUSAGE_SELF;
SCARG(&ga, rusage) = ru;
error = sys_getrusage(p, &ga, retval);
if (error)
return error;
tms.tms_utime = CONVTCK(ru->ru_utime);
tms.tms_stime = CONVTCK(ru->ru_stime);
SCARG(&ga, who) = RUSAGE_CHILDREN;
error = sys_getrusage(p, &ga, retval);
if (error)
return error;
tms.tms_cutime = CONVTCK(ru->ru_utime);
tms.tms_cstime = CONVTCK(ru->ru_stime);
microtime(&t);
*retval = CONVTCK(t);
return copyout((caddr_t)&tms, (caddr_t)SCARG(uap, tp),
sizeof(struct tms));
}
int
ibcs2_sys_stime(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_stime_args /* {
syscallarg(long *) timep;
} */ *uap = v;
int error;
struct sys_settimeofday_args sa;
caddr_t sg = stackgap_init(p->p_emul);
struct timeval *tvp;
tvp = stackgap_alloc(&sg, sizeof(*SCARG(&sa, tv)));
SCARG(&sa, tzp) = NULL;
error = copyin((caddr_t)SCARG(uap, timep),
(void *)&tvp->tv_sec, sizeof(long));
if (error)
return error;
tvp->tv_usec = 0;
SCARG(&sa, tv) = tvp;
if ((error = sys_settimeofday(p, &sa, retval)) != 0)
return EPERM;
return 0;
}
int
ibcs2_sys_utime(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_utime_args /* {
syscallarg(const char *) path;
syscallarg(struct ibcs2_utimbuf *) buf;
} */ *uap = v;
int error;
struct sys_utimes_args sa;
struct timeval *tp;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
SCARG(&sa, path) = SCARG(uap, path);
if (SCARG(uap, buf)) {
struct ibcs2_utimbuf ubuf;
error = copyin((caddr_t)SCARG(uap, buf), (caddr_t)&ubuf,
sizeof(ubuf));
if (error)
return error;
tp = stackgap_alloc(&sg, 2 * sizeof(struct timeval *));
tp[0].tv_sec = ubuf.actime;
tp[0].tv_usec = 0;
tp[1].tv_sec = ubuf.modtime;
tp[1].tv_usec = 0;
SCARG(&sa, tptr) = tp;
} else
SCARG(&sa, tptr) = NULL;
return sys_utimes(p, &sa, retval);
}
int
ibcs2_sys_nice(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_nice_args /* {
syscallarg(int) incr;
} */ *uap = v;
int error;
struct sys_setpriority_args sa;
SCARG(&sa, which) = PRIO_PROCESS;
SCARG(&sa, who) = 0;
SCARG(&sa, prio) = p->p_nice - NZERO + SCARG(uap, incr);
if ((error = sys_setpriority(p, &sa, retval)) != 0)
return EPERM;
*retval = p->p_nice - NZERO;
return 0;
}
/*
* iBCS2 getpgrp, setpgrp, setsid, and setpgid
*/
int
ibcs2_sys_pgrpsys(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_pgrpsys_args /* {
syscallarg(int) type;
syscallarg(caddr_t) dummy;
syscallarg(int) pid;
syscallarg(int) pgid;
} */ *uap = v;
switch (SCARG(uap, type)) {
case 0: /* getpgrp */
*retval = p->p_pgrp->pg_id;
return 0;
case 1: /* setpgrp */
{
struct sys_setpgid_args sa;
SCARG(&sa, pid) = 0;
SCARG(&sa, pgid) = 0;
sys_setpgid(p, &sa, retval);
*retval = p->p_pgrp->pg_id;
return 0;
}
case 2: /* setpgid */
{
struct sys_setpgid_args sa;
SCARG(&sa, pid) = SCARG(uap, pid);
SCARG(&sa, pgid) = SCARG(uap, pgid);
return sys_setpgid(p, &sa, retval);
}
case 3: /* setsid */
return sys_setsid(p, NULL, retval);
default:
return EINVAL;
}
}
/*
* XXX - need to check for nested calls
*/
int
ibcs2_sys_plock(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_plock_args /* {
syscallarg(int) cmd;
} */ *uap = v;
int error;
#define IBCS2_UNLOCK 0
#define IBCS2_PROCLOCK 1
#define IBCS2_TEXTLOCK 2
#define IBCS2_DATALOCK 4
if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
return EPERM;
switch(SCARG(uap, cmd)) {
case IBCS2_UNLOCK:
case IBCS2_PROCLOCK:
case IBCS2_TEXTLOCK:
case IBCS2_DATALOCK:
return 0; /* XXX - TODO */
}
return EINVAL;
}
int
ibcs2_sys_uadmin(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_uadmin_args /* {
syscallarg(int) cmd;
syscallarg(int) func;
syscallarg(caddr_t) data;
} */ *uap = v;
int error;
#define SCO_A_REBOOT 1
#define SCO_A_SHUTDOWN 2
#define SCO_A_REMOUNT 4
#define SCO_A_CLOCK 8
#define SCO_A_SETCONFIG 128
#define SCO_A_GETDEV 130
#define SCO_AD_HALT 0
#define SCO_AD_BOOT 1
#define SCO_AD_IBOOT 2
#define SCO_AD_PWRDOWN 3
#define SCO_AD_PWRNAP 4
#define SCO_AD_PANICBOOT 1
#define SCO_AD_GETBMAJ 0
#define SCO_AD_GETCMAJ 1
/* XXX: is this the right place for this call? */
if ((error = suser(p->p_ucred, &p->p_acflag)) != 0)
return (error);
switch(SCARG(uap, cmd)) {
case SCO_A_REBOOT:
case SCO_A_SHUTDOWN:
switch(SCARG(uap, func)) {
case SCO_AD_HALT:
case SCO_AD_PWRDOWN:
case SCO_AD_PWRNAP:
cpu_reboot(RB_HALT, NULL);
case SCO_AD_BOOT:
case SCO_AD_IBOOT:
cpu_reboot(RB_AUTOBOOT, NULL);
}
return EINVAL;
case SCO_A_REMOUNT:
case SCO_A_CLOCK:
case SCO_A_SETCONFIG:
return 0;
case SCO_A_GETDEV:
return EINVAL; /* XXX - TODO */
}
return EINVAL;
}
int
ibcs2_sys_sysfs(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_sysfs_args /* {
syscallarg(int) cmd;
syscallarg(caddr_t) d1;
syscallarg(char *) buf;
} */ *uap = v;
#define IBCS2_GETFSIND 1
#define IBCS2_GETFSTYP 2
#define IBCS2_GETNFSTYP 3
switch(SCARG(uap, cmd)) {
case IBCS2_GETFSIND:
case IBCS2_GETFSTYP:
case IBCS2_GETNFSTYP:
}
return EINVAL; /* XXX - TODO */
}
int
xenix_sys_rdchk(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct xenix_sys_rdchk_args /* {
syscallarg(int) fd;
} */ *uap = v;
int error;
struct sys_ioctl_args sa;
caddr_t sg = stackgap_init(p->p_emul);
SCARG(&sa, fd) = SCARG(uap, fd);
SCARG(&sa, com) = FIONREAD;
SCARG(&sa, data) = stackgap_alloc(&sg, sizeof(int));
if ((error = sys_ioctl(p, &sa, retval)) != 0)
return error;
*retval = (*((int*)SCARG(&sa, data))) ? 1 : 0;
return 0;
}
int
xenix_sys_chsize(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct xenix_sys_chsize_args /* {
syscallarg(int) fd;
syscallarg(long) size;
} */ *uap = v;
struct sys_ftruncate_args sa;
SCARG(&sa, fd) = SCARG(uap, fd);
SCARG(&sa, pad) = 0;
SCARG(&sa, length) = SCARG(uap, size);
return sys_ftruncate(p, &sa, retval);
}
int
xenix_sys_nap(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct xenix_sys_nap_args /* {
syscallarg(long) millisec;
} */ *uap = v;
int error;
struct sys_nanosleep_args na;
struct timespec *rqtp;
struct timespec *rmtp;
caddr_t sg = stackgap_init(p->p_emul);
rqtp = stackgap_alloc(&sg, sizeof(struct timespec));
rmtp = stackgap_alloc(&sg, sizeof(struct timespec));
rqtp->tv_sec = 0;
rqtp->tv_nsec = SCARG(uap, millisec) * 1000;
SCARG(&na, rqtp) = rqtp;
SCARG(&na, rmtp) = rmtp;
if ((error = sys_nanosleep(p, &na, retval)) != 0)
return error;
*retval = rmtp->tv_nsec / 1000;
return 0;
}
int
ibcs2_sys_unlink(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_unlink_args /* {
syscallarg(const char *) path;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_unlink(p, uap, retval);
}
int
ibcs2_sys_chdir(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_chdir_args /* {
syscallarg(const char *) path;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_chdir(p, uap, retval);
}
int
ibcs2_sys_chmod(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_chmod_args /* {
syscallarg(const char *) path;
syscallarg(int) mode;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_chmod(p, uap, retval);
}
int
ibcs2_sys_chown(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_chown_args /* {
syscallarg(const char *) path;
syscallarg(int) uid;
syscallarg(int) gid;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys___posix_chown(p, uap, retval);
}
int
ibcs2_sys_rmdir(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_rmdir_args /* {
syscallarg(const char *) path;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_rmdir(p, uap, retval);
}
int
ibcs2_sys_mkdir(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_mkdir_args /* {
syscallarg(const char *) path;
syscallarg(int) mode;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_CREAT(p, &sg, SCARG(uap, path));
return sys_mkdir(p, uap, retval);
}
int
ibcs2_sys_symlink(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_symlink_args /* {
syscallarg(const char *) path;
syscallarg(const char *) link;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
IBCS2_CHECK_ALT_CREAT(p, &sg, SCARG(uap, link));
return sys_symlink(p, uap, retval);
}
int
ibcs2_sys_rename(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_rename_args /* {
syscallarg(const char *) from;
syscallarg(const char *) to;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, from));
IBCS2_CHECK_ALT_CREAT(p, &sg, SCARG(uap, to));
return sys___posix_rename(p, uap, retval);
}
int
ibcs2_sys_readlink(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_readlink_args /* {
syscallarg(const char *) path;
syscallarg(char *) buf;
syscallarg(int) count;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
IBCS2_CHECK_ALT_EXIST(p, &sg, SCARG(uap, path));
return sys_readlink(p, uap, retval);
}
/*
* mmap compat code borrowed from svr4/svr4_misc.c
*/
int
ibcs2_sys_mmap(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_mmap_args /* {
syscallarg(ibcs2_caddr_t) addr;
syscallarg(ibcs2_size_t) len;
syscallarg(int) prot;
syscallarg(int) flags;
syscallarg(int) fd;
syscallarg(ibcs2_off_t) off;
} */ *uap = v;
struct sys_mmap_args mm;
void *rp;
#define _MAP_NEW 0x80000000 /* XXX why? */
if (SCARG(uap, prot) & ~(PROT_READ | PROT_WRITE | PROT_EXEC))
return EINVAL;
if (SCARG(uap, len) == 0)
return EINVAL;
SCARG(&mm, prot) = SCARG(uap, prot);
SCARG(&mm, len) = SCARG(uap, len);
SCARG(&mm, flags) = SCARG(uap, flags) & ~_MAP_NEW;
SCARG(&mm, fd) = SCARG(uap, fd);
SCARG(&mm, addr) = SCARG(uap, addr);
SCARG(&mm, pos) = SCARG(uap, off);
rp = (void *) round_page(p->p_vmspace->vm_daddr + MAXDSIZ);
if ((SCARG(&mm, flags) & MAP_FIXED) == 0 &&
SCARG(&mm, addr) != 0 && SCARG(&mm, addr) < rp)
SCARG(&mm, addr) = rp;
return sys_mmap(p, &mm, retval);
}
int
ibcs2_sys_memcntl(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_memcntl_args /* {
syscallarg(ibcs2_caddr_t) addr;
syscallarg(ibcs2_size_t) len;
syscallarg(int) cmd;
syscallarg(ibcs2_caddr_t) arg;
syscallarg(int) attr;
syscallarg(int) mask;
} */ *uap = v;
switch (SCARG(uap, cmd)) {
case IBCS2_MC_SYNC:
{
struct sys___msync13_args msa;
SCARG(&msa, addr) = SCARG(uap, addr);
SCARG(&msa, len) = SCARG(uap, len);
SCARG(&msa, flags) = (int)SCARG(uap, arg);
return sys___msync13(p, &msa, retval);
}
#ifdef IBCS2_MC_ADVISE /* supported? */
case IBCS2_MC_ADVISE:
{
struct sys_madvise_args maa;
SCARG(&maa, addr) = SCARG(uap, addr);
SCARG(&maa, len) = SCARG(uap, len);
SCARG(&maa, behav) = (int)SCARG(uap, arg);
return sys_madvise(p, &maa, retval);
}
#endif
case IBCS2_MC_LOCK:
case IBCS2_MC_UNLOCK:
case IBCS2_MC_LOCKAS:
case IBCS2_MC_UNLOCKAS:
return EOPNOTSUPP;
default:
return ENOSYS;
}
}
int
ibcs2_sys_gettimeofday(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_gettimeofday_args /* {
syscallarg(struct timeval *) tp;
} */ *uap = v;
if (SCARG(uap, tp)) {
struct timeval atv;
microtime(&atv);
return copyout(&atv, SCARG(uap, tp), sizeof (atv));
}
return 0;
}
int
ibcs2_sys_settimeofday(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_settimeofday_args /* {
syscallarg(struct timeval *) tp;
} */ *uap = v;
struct sys_settimeofday_args ap;
SCARG(&ap, tv) = SCARG(uap, tp);
SCARG(&ap, tzp) = NULL;
return sys_settimeofday(p, &ap, retval);
}
int
ibcs2_sys_scoinfo(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct ibcs2_sys_scoinfo_args /* {
syscallarg(struct scoutsname *) bp;
syscallarg(int) len;
} */ *uap = v;
caddr_t sg = stackgap_init(p->p_emul);
struct scoutsname *utsp = stackgap_alloc(&sg,
sizeof(struct scoutsname));
extern char ostype[], machine[], osrelease[];
memset(utsp, 0, sizeof(struct scoutsname));
strncpy(utsp->sysname, ostype, 8);
strncpy(utsp->nodename, hostname, 8);
strncpy(utsp->release, osrelease, 15);
strncpy(utsp->kid, "kernel id 1", 19);
strncpy(utsp->machine, machine, 8);
strncpy(utsp->bustype, "pci", 8);
strncpy(utsp->serial, "1234", 9);
utsp->origin = 0;
utsp->oem = 0;
strncpy(utsp->nusers, "unlim", 8);
utsp->ncpu = 1;
return copyout((caddr_t)utsp, (caddr_t)SCARG(uap, bp),
sizeof(struct scoutsname));
}
#define X_LK_UNLCK 0
#define X_LK_LOCK 1
#define X_LK_NBLCK 20
#define X_LK_RLCK 3
#define X_LK_NBRLCK 4
#define X_LK_GETLK 5
#define X_LK_SETLK 6
#define X_LK_SETLKW 7
#define X_LK_TESTLK 8
int
xenix_sys_locking(p, v, retval)
struct proc *p;
void *v;
register_t *retval;
{
struct xenix_sys_locking_args /* {
syscallarg(int) fd;
syscallarg(int) blk;
syscallarg(int) size;
} */ *uap = v;
struct sys_fcntl_args fa;
struct flock *flp;
struct filedesc *fdp = p->p_fd;
struct file *fp;
int cmd;
off_t off;
caddr_t sg = stackgap_init(p->p_emul);
switch SCARG(uap, blk) {
case X_LK_GETLK:
case X_LK_SETLK:
case X_LK_SETLKW:
return ibcs2_sys_fcntl(p, v, retval);
}
if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
(fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
return (EBADF);
off = fp->f_offset;
flp = stackgap_alloc(&sg, sizeof(*flp));
flp->l_start = off;
switch SCARG(uap, blk) {
case X_LK_UNLCK:
cmd = F_SETLK;
flp->l_type = F_UNLCK;
break;
case X_LK_LOCK:
cmd = F_SETLKW;
flp->l_type = F_WRLCK;
break;
case X_LK_NBRLCK:
cmd = F_SETLK;
flp->l_type = F_RDLCK;
break;
case X_LK_NBLCK:
cmd = F_SETLK;
flp->l_type = F_WRLCK;
break;
default:
return EINVAL;
}
flp->l_len = SCARG(uap, size);
flp->l_whence = SEEK_SET;
SCARG(&fa, fd) = SCARG(uap, fd);
SCARG(&fa, cmd) = cmd;
SCARG(&fa, arg) = (void *)flp;
return sys_fcntl(p, &fa, retval);
}
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