From 6f768ec049944ab39c79fcaa7bdf9622385b7672 Mon Sep 17 00:00:00 2001
From: Karel Zak <kzak@redhat.com>
Date: Thu, 16 Mar 2017 13:29:50 +0100
Subject: [PATCH 092/116] fdisk: print header UUID for GPT

Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=1344726
Signed-off-by: Karel Zak <kzak@redhat.com>
---
 fdisks/fdisk.c        |  2 ++
 libfdisk/src/fdiskP.h |  1 +
 libfdisk/src/gpt.c    | 18 ++++++++++++++++++
 3 files changed, 21 insertions(+)

diff --git a/fdisks/fdisk.c b/fdisks/fdisk.c
index 0ec9909..974d735 100644
--- a/fdisks/fdisk.c
+++ b/fdisks/fdisk.c
@@ -657,6 +657,8 @@ list_disk_geometry(struct fdisk_context *cxt) {
		printf(_("Disk label type: %s\n"), cxt->label->name);
	if (fdisk_is_disklabel(cxt, DOS))
		dos_print_mbr_id(cxt);
+	if (fdisk_is_disklabel(cxt, GPT))
+		gpt_print_header_id(cxt);
	printf("\n");
 }

diff --git a/libfdisk/src/fdiskP.h b/libfdisk/src/fdiskP.h
index ce42860..6711ab8 100644
--- a/libfdisk/src/fdiskP.h
+++ b/libfdisk/src/fdiskP.h
@@ -315,6 +315,7 @@ extern void fdisk_deinit_label(struct fdisk_label *lb);

 /* gpt.c -- temporary bypass library API... */
 extern void gpt_list_table(struct fdisk_context *cxt, int xtra);
+extern void gpt_print_header_id(struct fdisk_context *cxt);

 /* ask.c */
 extern int fdisk_ask_partnum(struct fdisk_context *cxt, size_t *partnum, int wantnew);
diff --git a/libfdisk/src/gpt.c b/libfdisk/src/gpt.c
index d3bdc2d..899e1b2 100644
--- a/libfdisk/src/gpt.c
+++ b/libfdisk/src/gpt.c
@@ -341,6 +341,24 @@ static inline int partition_unused(const struct gpt_entry *e)
			sizeof(struct gpt_guid));
 }

+void gpt_print_header_id(struct fdisk_context *cxt)
+{
+	char str[37];
+	struct gpt_header *header;
+	struct fdisk_gpt_label *gpt;
+
+	assert(cxt);
+	assert(cxt->label);
+	assert(fdisk_is_disklabel(cxt, GPT));
+
+	gpt = self_label(cxt);
+	header = gpt->pheader ? gpt->pheader : gpt->bheader;
+
+	guid_to_string(&header->disk_guid, str);
+
+	printf("Disk identifier: %s\n", str);
+}
+
 /*
  * Builds a clean new valid protective MBR - will wipe out any existing data.
  * Returns 0 on success, otherwise < 0 on error.
--
2.9.3
