zig/std/os.zig
2016-03-01 14:11:38 -07:00

29 lines
778 B
Zig

const linux = @import("linux.zig");
const errno = @import("errno.zig");
pub error SigInterrupt;
pub error Unexpected;
pub fn get_random_bytes(buf: []u8) -> %void {
switch (@compile_var("os")) {
linux => {
const amt_got = linux.getrandom(buf.ptr, buf.len, 0);
if (amt_got < 0) {
return switch (-amt_got) {
errno.EINVAL => unreachable{},
errno.EFAULT => unreachable{},
errno.EINTR => error.SigInterrupt,
else => error.Unexpected,
}
}
},
windows => {
// TODO
for (buf) |_, i| {
buf[i] = 4;
}
},
else => unreachable{},
}
}