From a45244ce127763872ff0b5743fb4ac8299ee9b28 Mon Sep 17 00:00:00 2001 From: James Clarke Date: Tue, 17 Dec 2019 18:29:29 +0000 Subject: [PATCH] hurd: Make getrandom honour GRND_NONBLOCK * sysdeps/mach/hurd/getrandom.c (__getrandom): Open the random source with O_NONBLOCK when the GRND_NONBLOCK flag is provided. Message-Id: <20191217182929.90989-1-jrtc27@jrtc27.com> --- sysdeps/mach/hurd/getrandom.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/sysdeps/mach/hurd/getrandom.c b/sysdeps/mach/hurd/getrandom.c index 8bf42aa..aac9c6f 100644 --- a/sysdeps/mach/hurd/getrandom.c +++ b/sysdeps/mach/hurd/getrandom.c @@ -27,13 +27,17 @@ ssize_t __getrandom (void *buffer, size_t length, unsigned int flags) { const char *random_source = "/dev/urandom"; + int open_flags = O_RDONLY | O_CLOEXEC; size_t amount_read; int fd; if (flags & GRND_RANDOM) random_source = "/dev/random"; - fd = __open_nocancel(random_source, O_RDONLY | O_CLOEXEC); + if (flags & GRND_NONBLOCK) + open_flags |= O_NONBLOCK; + + fd = __open_nocancel(random_source, open_flags); if (fd == -1) return -1; -- 2.7.4