diff options
Diffstat (limited to 'Kernel/Syscalls/getrandom.cpp')
| -rw-r--r-- | Kernel/Syscalls/getrandom.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/Kernel/Syscalls/getrandom.cpp b/Kernel/Syscalls/getrandom.cpp index c92cc5778e..c2c6dc9bbc 100644 --- a/Kernel/Syscalls/getrandom.cpp +++ b/Kernel/Syscalls/getrandom.cpp @@ -13,7 +13,7 @@ namespace Kernel { // We don't use the flag yet, but we could use it for distinguishing // random source like Linux, unlike the OpenBSD equivalent. However, if we // do, we should be able of the caveats that Linux has dealt with. -KResultOr<size_t> Process::sys$getrandom(Userspace<void*> buffer, size_t buffer_size, [[maybe_unused]] unsigned flags) +KResultOr<FlatPtr> Process::sys$getrandom(Userspace<void*> buffer, size_t buffer_size, [[maybe_unused]] unsigned flags) { REQUIRE_PROMISE(stdio); if (buffer_size > NumericLimits<ssize_t>::max()) @@ -22,10 +22,14 @@ KResultOr<size_t> Process::sys$getrandom(Userspace<void*> buffer, size_t buffer_ auto data_buffer = UserOrKernelBuffer::for_user_buffer(buffer, buffer_size); if (!data_buffer.has_value()) return EFAULT; - return data_buffer.value().write_buffered<1024>(buffer_size, [&](u8* buffer, size_t buffer_bytes) { + auto result = data_buffer.value().write_buffered<1024>(buffer_size, [&](u8* buffer, size_t buffer_bytes) { get_good_random_bytes(buffer, buffer_bytes); return buffer_bytes; }); + if (result.is_error()) + return result.error(); + else + return result.release_value(); } } |