sysdep: Add wrapper to get random bytes

Add a wrapper function in sysdep to get random bytes, and required checks
in configure.ac to select how to do it. The configure script tries, in
order, getrandom(), getentropy() and reading from /dev/urandom.

1 files changed, 1 insertions, 0 deletions

diff --git a/conf/conf.c b/conf/conf.c
index 58abcde1..0c355be4 100644
--- a/conf/conf.c
+++ b/conf/conf.c
@@ -524,6 +524,7 @@ order_shutdown(int gr)
   c->gr_down = gr;
 
   config_commit(c, RECONFIG_HARD, 0);
+  random_close();
   shutting_down = 1;
 }