From c994384a4c10850fcc00250074bad256909dc009 Mon Sep 17 00:00:00 2001
From: kettenis <kettenis@openbsd.org>
Date: Thu, 12 Jul 2018 14:46:45 +0000
Subject: [PATCH] Add a function to delete all nodes with a specific name. Add
 a function to determine the size of a machine description.

---
 usr.sbin/ldomctl/mdesc.c | 28 +++++++++++++++++++++++++++-
 usr.sbin/ldomctl/mdesc.h |  4 +++-
 2 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/usr.sbin/ldomctl/mdesc.c b/usr.sbin/ldomctl/mdesc.c
index babdd821641..cb6a0445b4f 100644
--- a/usr.sbin/ldomctl/mdesc.c
+++ b/usr.sbin/ldomctl/mdesc.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mdesc.c,v 1.9 2015/05/23 14:26:06 jsg Exp $	*/
+/*	$OpenBSD: mdesc.c,v 1.10 2018/07/12 14:46:45 kettenis Exp $	*/
 
 /*
  * Copyright (c) 2012 Mark Kettenis
@@ -315,6 +315,15 @@ md_find_delete_node(struct md *md, const char *name)
 		md_delete_node(md, node);
 }
 
+void
+md_find_delete_nodes(struct md *md, const char *name)
+{
+	struct md_node *node;
+
+	while ((node = md_find_node(md, name)))
+		md_delete_node(md, node);
+}
+
 struct md *
 md_alloc(void)
 {
@@ -649,3 +658,20 @@ md_write(struct md *md, const char *path)
 
 	fclose(fp);
 }
+
+uint32_t
+md_size(const char *path)
+{
+	uint32_t size;
+	FILE *fp;
+
+	fp = fopen(path, "r");
+	if (fp == NULL)
+		err(1, "fopen");
+
+	fseek(fp, 0, SEEK_END);
+	size = ftell(fp);
+	fclose(fp);
+
+	return size;
+}
diff --git a/usr.sbin/ldomctl/mdesc.h b/usr.sbin/ldomctl/mdesc.h
index 4e509b764c2..ec78d951c66 100644
--- a/usr.sbin/ldomctl/mdesc.h
+++ b/usr.sbin/ldomctl/mdesc.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: mdesc.h,v 1.5 2012/11/26 20:08:16 kettenis Exp $	*/
+/*	$OpenBSD: mdesc.h,v 1.6 2018/07/12 14:46:45 kettenis Exp $	*/
 
 /*
  * Copyright (c) 2012 Mark Kettenis
@@ -125,6 +125,7 @@ bool md_get_prop_data(struct md *, struct md_node *, const char *,
 
 void md_delete_node(struct md *, struct md_node *);
 void md_find_delete_node(struct md *, const char *);
+void md_find_delete_nodes(struct md *, const char *);
 
 void md_collect_garbage(struct md *);
 
@@ -135,3 +136,4 @@ struct md *md_copy(struct md *);
 
 struct md *md_read(const char *);
 void md_write(struct md *, const char *);
+uint32_t md_size(const char *);
-- 
2.20.1