From 2055d9d08d94fa9c2ddd576c53be6433db2b8619 Mon Sep 17 00:00:00 2001
From: cgd <cgd@NetBSD.org>
Date: Sat, 26 Jun 1999 01:24:41 +0000
Subject: [PATCH] emulate (parts of) flock

---
 sys/compat/osf1/osf1_descrip.c | 40 ++++++++++++++++++++++++++++++----
 1 file changed, 36 insertions(+), 4 deletions(-)

diff --git a/sys/compat/osf1/osf1_descrip.c b/sys/compat/osf1/osf1_descrip.c
index c21feb0add86..900686cbe0e2 100644
--- a/sys/compat/osf1/osf1_descrip.c
+++ b/sys/compat/osf1/osf1_descrip.c
@@ -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;