From 7cc6100cd1df1e31e79298997610251bd707cb06 Mon Sep 17 00:00:00 2001
From: "Angelos D. Keromytis" <angelos@cvs.openbsd.org>
Date: Mon, 1 Jan 2001 21:05:35 +0000
Subject: New command "setpid", just changes the ID of a partition (no other
 parameters editing) -- vassilip@dsl.cis.upenn.edu

---
 sbin/fdisk/cmd.c   | 42 +++++++++++++++++++++++++++++++++++++++++-
 sbin/fdisk/cmd.h   |  3 ++-
 sbin/fdisk/fdisk.8 |  7 ++++++-
 sbin/fdisk/user.c  |  3 ++-
 4 files changed, 51 insertions(+), 4 deletions(-)

(limited to 'sbin')

diff --git a/sbin/fdisk/cmd.c b/sbin/fdisk/cmd.c
index db341992bdc..2bbfbfe9230 100644
--- a/sbin/fdisk/cmd.c
+++ b/sbin/fdisk/cmd.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cmd.c,v 1.26 2000/07/01 21:49:12 mickey Exp $	*/
+/*	$OpenBSD: cmd.c,v 1.27 2001/01/01 21:05:33 angelos Exp $	*/
 
 /*
  * Copyright (c) 1997 Tobias Weingartner
@@ -192,6 +192,46 @@ Xedit(cmd, disk, mbr, tt, offset)
 	return (ret);
 }
 
+int
+Xsetpid(cmd, disk, mbr, tt, offset)
+	cmd_t *cmd;
+	disk_t *disk;
+	mbr_t *mbr;
+	mbr_t *tt;
+	int offset;
+{
+	int pn, num, ret;
+	prt_t *pp;
+
+	ret = CMD_CONT;
+
+	if (!isdigit(cmd->args[0])) {
+		printf("Invalid argument: %s <partition number>\n", cmd->cmd);
+		return (ret);
+	}
+	pn = atoi(cmd->args);
+
+	if (pn < 0 || pn > 3) {
+		printf("Invalid partition number.\n");
+		return (ret);
+	}
+
+	/* Print out current table entry */
+	pp = &mbr->part[pn];
+	PRT_print(0, NULL);
+	PRT_print(pn, pp);
+
+#define	EDIT(p, f, v, n, m, h)				\
+	if ((num = ask_num(p, f, v, n, m, h)) != v)	\
+		ret = CMD_DIRTY;			\
+	v = num;
+
+	/* Ask for partition type */
+	EDIT("Partition id ('0' to disable) ", ASK_HEX, pp->id, 0, 0xFF, PRT_printall);
+
+#undef EDIT
+	return (ret);
+}
 int
 Xselect(cmd, disk, mbr, tt, offset)
 	cmd_t *cmd;
diff --git a/sbin/fdisk/cmd.h b/sbin/fdisk/cmd.h
index 73ae93889dc..2620742ff3a 100644
--- a/sbin/fdisk/cmd.h
+++ b/sbin/fdisk/cmd.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: cmd.h,v 1.4 1997/10/16 10:35:06 deraadt Exp $	*/
+/*	$OpenBSD: cmd.h,v 1.5 2001/01/01 21:05:33 angelos Exp $	*/
 
 /*
  * Copyright (c) 1997 Tobias Weingartner
@@ -66,6 +66,7 @@ int Xreinit __P((cmd_t *, disk_t *, mbr_t *, mbr_t *, int));
 int Xdisk __P((cmd_t *, disk_t *, mbr_t *, mbr_t *, int));
 int Xmanual __P((cmd_t *, disk_t *, mbr_t *, mbr_t *, int));
 int Xedit __P((cmd_t *, disk_t *, mbr_t *, mbr_t *, int));
+int Xsetpid __P((cmd_t *, disk_t *, mbr_t *, mbr_t *, int));
 int Xselect __P((cmd_t *, disk_t *, mbr_t *, mbr_t *, int));
 int Xprint __P((cmd_t *, disk_t *, mbr_t *, mbr_t *, int));
 int Xwrite __P((cmd_t *, disk_t *, mbr_t *, mbr_t *, int));
diff --git a/sbin/fdisk/fdisk.8 b/sbin/fdisk/fdisk.8
index db3cb4a65b5..48ab1c2eeb4 100644
--- a/sbin/fdisk/fdisk.8
+++ b/sbin/fdisk/fdisk.8
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: fdisk.8,v 1.33 2000/11/09 17:52:54 aaron Exp $
+.\"	$OpenBSD: fdisk.8,v 1.34 2001/01/01 21:05:34 angelos Exp $
 .\"
 .\" Copyright (c) 1997 Tobias Weingartner
 .\" All rights reserved.
@@ -207,6 +207,11 @@ Edit a given table entry in the memory copy of
 the current boot block.
 You may edit either in BIOS geometry mode,
 or in sector offsets and sizes.
+.It Em setpid
+Change the partition
+identifier of the given partition table entry.
+This command is particularly useful for reassigning
+an existing partition to OpenBSD.
 .It Em flag
 Make the given partition table entry bootable.
 Only one entry can be marked bootable.
diff --git a/sbin/fdisk/user.c b/sbin/fdisk/user.c
index 8a5bf7a0c91..248e9844a75 100644
--- a/sbin/fdisk/user.c
+++ b/sbin/fdisk/user.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: user.c,v 1.15 2000/09/12 00:17:47 deraadt Exp $	*/
+/*	$OpenBSD: user.c,v 1.16 2001/01/01 21:05:34 angelos Exp $	*/
 
 /*
  * Copyright (c) 1997 Tobias Weingartner
@@ -52,6 +52,7 @@ static cmd_table_t cmd_table[] = {
 	{"help",   Xhelp,	"Command help list"},
 	{"manual", Xmanual,	"Show entire OpenBSD man page for fdisk"},
 	{"reinit", Xreinit,	"Re-initialize loaded MBR (to defaults)"},
+	{"setpid", Xsetpid,	"Set the identifier of a given table entry"},
 	{"disk",   Xdisk,	"Edit current drive stats"},
 	{"edit",   Xedit,	"Edit given table entry"},
 	{"flag",   Xflag,	"Flag given table entry as bootable"},
-- 
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