libuuid: check clock value from LIBUUID_CLOCK_FILE

The clock value from the LIBUUID_CLOCK_FILE must be checked in
case of an update of libuuid. If clock==CLOCK_SEQ_CONT it must
be set to a new value.

Signed-off-by: Karel Zak <kzak@redhat.com>

diff --git a/libuuid/src/gen_uuid.c b/libuuid/src/gen_uuid.c
index 807dcd11510346fb4dd49d25f31faae8a8c861ef..e1ba3c3d0e993253a1059cc75ed822832b26c2ee 100644 (file)
--- a/libuuid/src/gen_uuid.c
+++ b/libuuid/src/gen_uuid.c
@@ -274,6 +274,11 @@ static int get_clock(uint32_t *clock_high, uint32_t *clock_low,
                        last.tv_usec = tv2;
                        adjustment = a;
                }
+               // reset in case of reserved CLOCK_SEQ_CONT
+               if (clock_seq == CLOCK_SEQ_CONT) {
+                       last.tv_sec = 0;
+                       last.tv_usec = 0;
+               }
        }
 
        if ((last.tv_sec == 0) && (last.tv_usec == 0)) {