Changeset d55abe8b in mainline

Timestamp:

2019-02-10T20:46:17Z (6 years ago)

Author:

Matthieu Riolo <matthieu.riolo@…>

Children:

5f39027

Parents:

ed3d605

git-author:

Matthieu Riolo <matthieu.riolo@…> (2019-02-09 18:32:38)

git-committer:

Matthieu Riolo <matthieu.riolo@…> (2019-02-10 20:46:17)

Message:

correcting uuid_generate

When created an UUID randomly it could occur
that the returned UUID was not valid. This
commit ensures that the clock-portion always
starts with one of the following letter 89ab.

File:

• uspace/lib/c/generic/uuid.c (modified) (2 diffs)

uspace/lib/c/generic/uuid.c

@@ -65 +65 @@
 
         /* Version 4 UUID from random or pseudo-random numbers */
-        uuid->b[8] = (uuid->b[8] & ~0xc0) | 0x40;
-        uuid->b[6] = (uuid->b[6] & 0xf0) | 0x40;
+        uuid->b[6] = (uuid->b[6] & 0x4F) | 0x40;
+        uuid->b[8] = (uuid->b[8] & 0xBF) | 0xB0;
 
         return EOK;
@@ -185 +185 @@
         
         const char *format = "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x";
-        if(uppercase)
+        if (uppercase)
                 format = "%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X";