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-rw-r--r--lib/mlibc/options/linux/generic/sys-random-stubs.cpp21
1 files changed, 21 insertions, 0 deletions
diff --git a/lib/mlibc/options/linux/generic/sys-random-stubs.cpp b/lib/mlibc/options/linux/generic/sys-random-stubs.cpp
new file mode 100644
index 0000000..5e5057f
--- /dev/null
+++ b/lib/mlibc/options/linux/generic/sys-random-stubs.cpp
@@ -0,0 +1,21 @@
+
+#include <sys/random.h>
+#include <bits/ensure.h>
+
+#include <mlibc/debug.hpp>
+#include <mlibc/posix-sysdeps.hpp>
+
+#include <errno.h>
+
+ssize_t getrandom(void *buffer, size_t max_size, unsigned int flags) {
+ if(flags & ~(GRND_RANDOM | GRND_NONBLOCK)) {
+ errno = EINVAL;
+ return -1;
+ }
+ MLIBC_CHECK_OR_ENOSYS(mlibc::sys_getentropy, -1);
+ if(int e = mlibc::sys_getentropy(buffer, max_size); e) {
+ errno = e;
+ return -1;
+ }
+ return max_size;
+}