The access(2) is more lightwight than stat(2), and tells whether random
device(s) can be read or not, unlike the earlier stat() call.
Signed-off-by: Sami Kerola <kerolasa@xxxxxx>
---
libuuid/src/gen_uuid.c | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/libuuid/src/gen_uuid.c b/libuuid/src/gen_uuid.c
index 21e361293..7dafcaeed 100644
--- a/libuuid/src/gen_uuid.c
+++ b/libuuid/src/gen_uuid.c
@@ -534,9 +534,8 @@ void uuid_generate_random(uuid_t out)
*/
static int have_random_source(void)
{
- struct stat s;
-
- return (!stat("/dev/random", &s) || !stat("/dev/urandom", &s));
+ return (access("/dev/random", R_OK) == 0 ||
+ access("/dev/urandom", R_OK) == 0);
}
--
2.13.3
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