From: Thomas Weißschuh <thomas@t-8ch.de>
Date: Tue, 21 May 2024 16:41:59 +0000 (+0200)
Subject: libuuid: add helper to set version and variant in uuid_t
X-Git-Tag: v2.42-start~325^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=22b8c3f588664f0879f2214cb7671b3716051749;p=thirdparty%2Futil-linux.git

libuuid: add helper to set version and variant in uuid_t

Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
---

diff --git a/libuuid/src/gen_uuid.c b/libuuid/src/gen_uuid.c
index e80e371c4..24b4b0dde 100644
--- a/libuuid/src/gen_uuid.c
+++ b/libuuid/src/gen_uuid.c
@@ -576,6 +576,13 @@ int __uuid_generate_time_cont(uuid_t out, int *num, uint32_t cont_offset)
 #define CS_MAX		(1<<18)
 #define CS_FACTOR	2
 
+static void __uuid_set_variant_and_version(uuid_t uuid, int version)
+{
+	uuid[6] = (uuid[6] & UUID_TYPE_MASK) | version << UUID_TYPE_SHIFT;
+	/* only DCE is supported */
+	uuid[8] = (uuid[10] & 0x3F) | 0x80;
+}
+
 /*
  * Generate time-based UUID and store it to @out
  *