Cast getpid() before shifting to avoid truncation of upper bits before
the 64bit XOR occurs.
---
cpukit/libmisc/uuid/gen_uuid.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/cpukit/libmisc/uuid/gen_uuid.c b/cpukit/libmisc/uuid/gen_uuid.c
index 9b8dbeaa2e..5601c887c9 100644
--- a/cpukit/libmisc/uuid/gen_uuid.c
+++ b/cpukit/libmisc/uuid/gen_uuid.c
@@ -171,7 +171,12 @@ static int get_random_fd(void)
fcntl(fd, F_SETFD, i | FD_CLOEXEC);
}
#endif
+#ifdef __rtems__
+ srand((((time_t)getpid()) << ((sizeof(pid_t)*CHAR_BIT)>>1)) ^
getuid()
+ ^ tv.tv_sec ^ tv.tv_usec);
+#else
srand((getpid() << ((sizeof(pid_t)*CHAR_BIT)>>1)) ^ getuid() ^
tv.tv_sec ^ tv.tv_usec);
+#endif
#ifdef DO_JRAND_MIX
jrand_seed[0] = getpid() ^ (tv.tv_sec & 0xFFFF);
jrand_seed[1] = getppid() ^ (tv.tv_usec & 0xFFFF);
--
2.39.2
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