[src/trunk]: src/bin/sh Provide $PPID, kill vvers (unused)

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

details:   https://anonhg.NetBSD.org/src/rev/d92e7297fb33
branches:  trunk
changeset: 343999:d92e7297fb33
user:      christos <christos%NetBSD.org@localhost>
date:      Tue Mar 08 14:32:34 2016 +0000

description:
Provide $PPID, kill vvers (unused)

diffstat:

 bin/sh/var.c |  12 +++++++++---
 1 files changed, 9 insertions(+), 3 deletions(-)

diffs (47 lines):

diff -r bcf4d95da5f2 -r d92e7297fb33 bin/sh/var.c
--- a/bin/sh/var.c      Tue Mar 08 14:30:48 2016 +0000
+++ b/bin/sh/var.c      Tue Mar 08 14:32:34 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: var.c,v 1.44 2015/05/26 21:35:15 christos Exp $        */
+/*     $NetBSD: var.c,v 1.45 2016/03/08 14:32:34 christos Exp $        */
 
 /*-
  * Copyright (c) 1991, 1993
@@ -37,7 +37,7 @@
 #if 0
 static char sccsid[] = "@(#)var.c      8.3 (Berkeley) 5/4/95";
 #else
-__RCSID("$NetBSD: var.c,v 1.44 2015/05/26 21:35:15 christos Exp $");
+__RCSID("$NetBSD: var.c,v 1.45 2016/03/08 14:32:34 christos Exp $");
 #endif
 #endif /* not lint */
 
@@ -101,7 +101,6 @@
 struct var vps1;
 struct var vps2;
 struct var vps4;
-struct var vvers;
 struct var voptind;
 
 const struct varinit varinit[] = {
@@ -174,6 +173,7 @@
        const struct varinit *ip;
        struct var *vp;
        struct var **vpp;
+       char buf[64];
 
        for (ip = varinit ; (vp = ip->var) != NULL ; ip++) {
                if (find_var(ip->text, &vpp, &vp->name_len) != NULL)
@@ -194,6 +194,12 @@
                vps1.text = NULL;
                choose_ps1();
        }
+
+       /*
+        * PPID is readonly
+        */
+       snprintf(buf, sizeof(buf), "%d", (int)getppid());
+       setvar("PPID", buf, VEXPORT|VREADONLY);
 }
 
 void