From d1ae8db86bb87237027692c92167c9c5d721c5a2 Mon Sep 17 00:00:00 2001
From: woahwhattheheck <brycembusiness2@gmail.com>
Date: Sun, 20 Sep 2026 23:24:44 -0400
Subject: [PATCH] entropy: retry interrupted urandom reads

---
 libcperciva/util/entropy.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libcperciva/util/entropy.c b/libcperciva/util/entropy.c
index d9454ee4..e84b2c2f 100644
--- a/libcperciva/util/entropy.c
+++ b/libcperciva/util/entropy.c
@@ -77,6 +77,8 @@ entropy_read_fill(struct entropy_read_cookie * er, uint8_t * buf,
 	/* Read bytes until we have filled the buffer. */
 	while (buflen > 0) {
 		if ((lenread = read(er->fd, buf, buflen)) == -1) {
+			if (errno == EINTR)
+				continue;
 			warnp("read(/dev/urandom)");
 			goto err0;
 		}