anil.recoil.org
forked from
gazagnaire.org/ocaml-crypto
upstream: https://github.com/mirage/mirage-crypto
Use arc4random_buf for Android 27 and earlier
getrandom is not present until Android 28.
Confer: https://android.googlesource.com/platform/bionic/+/02ce401d1e2b31586c94c8b6999364bbbce27388/libc/include/sys/random.h
+5
CHANGES.md
+5
CHANGES.md
+8
-1
rng/unix/mc_getrandom_stubs.c
+8
-1
rng/unix/mc_getrandom_stubs.c
···
9
9
#include <caml/unixsupport.h>
10
10
#include <caml/bigarray.h>
11
11
12
-
#if defined(__linux) || defined(__GNU__)
12
+
#if defined(__ANDROID_API__) && __ANDROID_API__ < 28
13
+
// on Android 27 and earlier, we use Google's <sys/random.h> recommended arc4random_buf
14
+
# include <stdlib.h>
15
+
16
+
void raw_getrandom (uint8_t *data, size_t len) {
17
+
arc4random_buf(data, len);
18
+
}
19
+
#elif defined(__linux) || defined(__GNU__)
13
20
# include <errno.h>
14
21
// on Linux and GNU/Hurd, we use getrandom and loop
15
22