# HG changeset patch
# User Kim Alvefur <zash@zash.se>
# Date 1485075344 -3600
# Node ID 201d0df6cce96c62ffb80bb41249468cae79f463
# Parent  b9910a507250e5af81a2948e99c94402af1e042b
util.crand: Comment about getrandom

diff -r b9910a507250 -r 201d0df6cce9 util-src/crand.c
--- a/util-src/crand.c	Sun Jan 22 09:32:33 2017 +0100
+++ b/util-src/crand.c	Sun Jan 22 09:55:44 2017 +0100
@@ -34,7 +34,10 @@
 #error getrandom() requires Linux 3.17 or later
 #endif
 
-/* Was this not supposed to be a function? */
+/*
+ * This acts like a read from /dev/urandom with the exception that it
+ * *does* block if the entropy pool is not yet initialized.
+ */
 int getrandom(void *buf, size_t len, int flags) {
 	return syscall(SYS_getrandom, buf, len, flags);
 }