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Kernel+LibC: Implement FIONREAD ioctl

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FIONREAD gets the number of bytes availible to read from a file
descriptor without blocking. I only implemented it for regular files and
sockets
This commit is contained in:
Peter Elliott 2021-07-26 23:06:22 -06:00 • committed by Andreas Kling
parent db92e66902
commit 39a77559f1
7 changed files with 38 additions and 4 deletions
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1
Kernel/Net/LocalSocket.h
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@ -47,6 +47,7 @@ public:
virtual KResultOr<size_t> sendto(FileDescription&, const UserOrKernelBuffer&, size_t, int, Userspace<const sockaddr*>, socklen_t) override;
virtual KResultOr<size_t> recvfrom(FileDescription&, UserOrKernelBuffer&, size_t, int flags, Userspace<sockaddr*>, Userspace<socklen_t*>, Time&) override;
virtual KResult getsockopt(FileDescription&, int level, int option, Userspace<void*>, Userspace<socklen_t*>) override;
virtual KResult ioctl(FileDescription&, unsigned request, Userspace<void*> arg) override;
virtual KResult chown(FileDescription&, uid_t, gid_t) override;
virtual KResult chmod(FileDescription&, mode_t) override;