From 9e4a51a860e90439f60b4fcfdd3ae03042d2c72a Mon Sep 17 00:00:00 2001
From: Warner Losh <imp@FreeBSD.org>
Date: Fri, 3 Mar 2017 20:23:14 +0000
Subject: [PATCH] Implement -d / --device-path to print the ascii
 representation of a variable that contains a UEFI device path.

Sponsored by: Netflix
---
 usr.sbin/efivar/efivar.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/usr.sbin/efivar/efivar.c b/usr.sbin/efivar/efivar.c
index 12ed5dc7b174..d877eb1b9cc2 100644
--- a/usr.sbin/efivar/efivar.c
+++ b/usr.sbin/efivar/efivar.c
@@ -45,6 +45,8 @@ static struct option longopts[] = {
 	{ "attributes",		required_argument,	NULL,	't' },
 	{ "binary",		no_argument,		NULL,	'b' },
 	{ "delete",		no_argument,		NULL,   'D' },
+	{ "device",		no_argument,		NULL,   'd' },
+	{ "device-path",	no_argument,		NULL,   'd' },
 	{ "fromfile",		required_argument,	NULL,	'f' },
 	{ "guid",		no_argument,		NULL,	'g' },
 	{ "hex",		no_argument,		NULL,	'H' },
@@ -196,6 +198,13 @@ bindump(uint8_t *data, size_t datalen)
 	write(1, data, datalen);
 }
 
+static void
+devpath_dump(uint8_t *data, size_t datalen)
+{
+
+	fprintf(stderr, "junk %p %zu\n", data, datalen);
+}
+
 static void
 pretty_guid(efi_guid_t *guid, char **gname)
 {
@@ -232,6 +241,8 @@ print_var(efi_guid_t *guid, char *name)
 			asciidump(data, datalen);
 		else if (bflag)
 			bindump(data, datalen);
+		else if (dflag)
+			devpath_dump(data, datalen);
 		else
 			hexdump(data, datalen);
 	} else {