Kernel/LibC: Add randomfill() syscall.

This syscall aims to fill the given buffer with cryptographically secure
random data. If the syscall returns and does not cause a page fault it
will **always** have filled the buffer with random data and never gives
back any error value.

1 files changed, 6 insertions, 0 deletions

diff --git a/userland/libc/sys/random/randomfill.c b/userland/libc/sys/random/randomfill.c
new file mode 100644
index 0000000..18ec04d
--- /dev/null
+++ b/userland/libc/sys/random/randomfill.c
@@ -0,0 +1,6 @@
+#include <sys/random.h>
+#include <syscall.h>
+
+void randomfill(void *buffer, uint32_t size) {
+  syscall(SYS_RANDOMFILL, buffer, size, 0, 0, 0);
+}