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emulate (parts of) flock

This commit is contained in:
cgd 1999-06-26 01:24:41 +00:00
parent 1e29f2fb1f
commit 2055d9d08d
1 changed files with 36 additions and 4 deletions
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40
sys/compat/osf1/osf1_descrip.c
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@ -1,4 +1,4 @@
/* $NetBSD: osf1_descrip.c,v 1.4 1999/05/05 20:01:04 thorpej Exp $ */
/* $NetBSD: osf1_descrip.c,v 1.5 1999/06/26 01:24:41 cgd Exp $ */
/*
* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
@ -92,9 +92,14 @@ osf1_sys_fcntl(p, v, retval)
{
struct osf1_sys_fcntl_args *uap = v;
struct sys_fcntl_args a;
struct osf1_flock oflock;
struct flock nflock;
unsigned long xfl, leftovers;
caddr_t sg;
int error;
sg = stackgap_init(p->p_emul);
SCARG(&a, fd) = SCARG(uap, fd);
leftovers = 0;
@ -132,12 +137,30 @@ osf1_sys_fcntl(p, v, retval)
case OSF1_F_GETOWN: /* XXX not yet supported */
case OSF1_F_SETOWN: /* XXX not yet supported */
case OSF1_F_GETLK: /* XXX not yet supported */
case OSF1_F_SETLK: /* XXX not yet supported */
case OSF1_F_SETLKW: /* XXX not yet supported */
/* XXX translate. */
return (EINVAL);
case OSF1_F_GETLK:
case OSF1_F_SETLK:
case OSF1_F_SETLKW:
if (SCARG(uap, cmd) == OSF1_F_GETLK)
SCARG(&a, cmd) = F_GETLK;
else if (SCARG(uap, cmd) == OSF1_F_SETLK)
SCARG(&a, cmd) = F_SETLK;
else if (SCARG(uap, cmd) == OSF1_F_SETLKW)
SCARG(&a, cmd) = F_SETLKW;
SCARG(&a, arg) = stackgap_alloc(&sg, sizeof nflock);
error = copyin(SCARG(uap, arg), &oflock, sizeof oflock);
if (error == 0)
error = osf1_cvt_flock_to_native(&oflock, &nflock);
if (error == 0)
error = copyout(&nflock, SCARG(&a, arg),
sizeof nflock);
if (error != 0)
return (error);
break;
case OSF1_F_RGETLK: /* [lock mgr op] XXX not supported */
case OSF1_F_RSETLK: /* [lock mgr op] XXX not supported */
case OSF1_F_CNVT: /* [lock mgr op] XXX not supported */
@ -169,6 +192,15 @@ osf1_sys_fcntl(p, v, retval)
leftovers, NULL);
retval[0] = xfl;
break;
case OSF1_F_GETLK:
error = copyin(SCARG(&a, arg), &nflock, sizeof nflock);
if (error == 0) {
osf1_cvt_flock_from_native(&nflock, &oflock);
error = copyout(&oflock, SCARG(uap, arg),
sizeof oflock);
}
break;
}
return error;