From 30124e172a8beef96bde3b6c0844d9aaea801ee8 Mon Sep 17 00:00:00 2001 From: Sami Kerola Date: Sun, 30 Jul 2017 12:33:12 +0100 Subject: libuuid: use access(2) when checking /dev/random availability 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 --- libuuid/src/gen_uuid.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) (limited to 'libuuid') 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); } -- cgit v1.2.3-55-g7522