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| author | James Clarke <jrtc27@jrtc27.com> | 2019-12-17 18:29:29 +0000 |
|---|---|---|
| committer | Samuel Thibault <samuel.thibault@ens-lyon.org> | 2019-12-17 20:38:01 +0100 |
| commit | a45244ce127763872ff0b5743fb4ac8299ee9b28 (patch) | |
| tree | 102ac88c778be1beb5d66b9699cef7dfd1cc390f | |
| parent | a059f9505bbef1f22c6f52798a74184632929145 (diff) | |
| download | glibc-a45244ce127763872ff0b5743fb4ac8299ee9b28.tar.gz glibc-a45244ce127763872ff0b5743fb4ac8299ee9b28.tar.xz glibc-a45244ce127763872ff0b5743fb4ac8299ee9b28.zip | |
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>
| -rw-r--r-- | sysdeps/mach/hurd/getrandom.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sysdeps/mach/hurd/getrandom.c b/sysdeps/mach/hurd/getrandom.c index 8bf42aa40d..aac9c6f8c6 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; |