From c4f623ef2a7980a63de7c9f1d539a656b83f10e7 Mon Sep 17 00:00:00 2001
From: Denis Vlasenko <vda.linux@googlemail.com>
Date: Tue, 26 Dec 2006 01:30:59 +0000
Subject: put small subset of e2fsprogs back in the tree: lsattr, chattr, fsck.
 Old e2fsprogs tree is in e2fsprogs/old_e2fsprogs/*.

---
 e2fsprogs/old_e2fsprogs/e2p/uuid.c | 78 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 78 insertions(+)
 create mode 100644 e2fsprogs/old_e2fsprogs/e2p/uuid.c

(limited to 'e2fsprogs/old_e2fsprogs/e2p/uuid.c')

diff --git a/e2fsprogs/old_e2fsprogs/e2p/uuid.c b/e2fsprogs/old_e2fsprogs/e2p/uuid.c
new file mode 100644
index 000000000..474d64a5a
--- /dev/null
+++ b/e2fsprogs/old_e2fsprogs/e2p/uuid.c
@@ -0,0 +1,78 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * uuid.c -- utility routines for manipulating UUID's.
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include "../ext2fs/ext2_types.h"
+
+#include "e2p.h"
+
+struct uuid {
+	__u32	time_low;
+	__u16	time_mid;
+	__u16	time_hi_and_version;
+	__u16	clock_seq;
+	__u8	node[6];
+};
+
+/* Returns 1 if the uuid is the NULL uuid */
+int e2p_is_null_uuid(void *uu)
+{
+	__u8	*cp;
+	int	i;
+
+	for (i=0, cp = uu; i < 16; i++)
+		if (*cp)
+			return 0;
+	return 1;
+}
+
+static void e2p_unpack_uuid(void *in, struct uuid *uu)
+{
+	__u8	*ptr = in;
+	__u32	tmp;
+
+	tmp = *ptr++;
+	tmp = (tmp << 8) | *ptr++;
+	tmp = (tmp << 8) | *ptr++;
+	tmp = (tmp << 8) | *ptr++;
+	uu->time_low = tmp;
+
+	tmp = *ptr++;
+	tmp = (tmp << 8) | *ptr++;
+	uu->time_mid = tmp;
+
+	tmp = *ptr++;
+	tmp = (tmp << 8) | *ptr++;
+	uu->time_hi_and_version = tmp;
+
+	tmp = *ptr++;
+	tmp = (tmp << 8) | *ptr++;
+	uu->clock_seq = tmp;
+
+	memcpy(uu->node, ptr, 6);
+}
+
+void e2p_uuid_to_str(void *uu, char *out)
+{
+	struct uuid uuid;
+
+	e2p_unpack_uuid(uu, &uuid);
+	sprintf(out,
+		"%08x-%04x-%04x-%02x%02x-%02x%02x%02x%02x%02x%02x",
+		uuid.time_low, uuid.time_mid, uuid.time_hi_and_version,
+		uuid.clock_seq >> 8, uuid.clock_seq & 0xFF,
+		uuid.node[0], uuid.node[1], uuid.node[2],
+		uuid.node[3], uuid.node[4], uuid.node[5]);
+}
+
+const char *e2p_uuid2str(void *uu)
+{
+	static char buf[80];
+	if (e2p_is_null_uuid(uu))
+		return "<none>";
+	e2p_uuid_to_str(uu, buf);
+	return buf;
+}
-- 
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