[src/netbsd-1-4]: src/sys/compat/common pull up rev(s) 1.12 from trunk. (cgd)

[cgd <cgd%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/bf108e59139f
branches:  netbsd-1-4
changeset: 468841:bf108e59139f
user:      cgd <cgd%NetBSD.org@localhost>
date:      Mon Jun 21 19:23:26 1999 +0000

description:
pull up rev(s) 1.12 from trunk. (cgd)

diffstat:

 sys/compat/common/compat_util.c |  24 +++++++++++++++++++++++-
 1 files changed, 23 insertions(+), 1 deletions(-)

diffs (38 lines):

diff -r 9150fd3a7564 -r bf108e59139f sys/compat/common/compat_util.c
--- a/sys/compat/common/compat_util.c   Mon Jun 21 19:23:11 1999 +0000
+++ b/sys/compat/common/compat_util.c   Mon Jun 21 19:23:26 1999 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: compat_util.c,v 1.11.2.1 1999/06/18 18:17:12 perry Exp $       */
+/*     $NetBSD: compat_util.c,v 1.11.2.2 1999/06/21 19:23:26 cgd Exp $ */
 
 /*-
  * Copyright (c) 1994 The NetBSD Foundation, Inc.
@@ -204,6 +204,28 @@
        return error;
 }
 
+/*
+ * Translate one set of flags to another, based on the entries in
+ * the given table.  If 'leftover' is specified, it is filled in
+ * with any flags which could not be translated.
+ */
+unsigned long
+emul_flags_translate(const struct emul_flags_xtab *tab,
+                    unsigned long in, unsigned long *leftover)
+{
+       unsigned long out;
+
+       for (out = 0; tab->omask != 0; tab++) {
+               if ((in & tab->omask) == tab->oval) {
+                       in &= ~tab->omask;
+                       out |= tab->nval;
+               }
+       }
+       if (leftover != NULL)
+               *leftover = in;
+       return (out);
+}
+
 caddr_t
 stackgap_init(e)
        struct emul *e;