Prevent reading or writing.
#include <zircon/syscalls.h> zx_status_t zx_socket_shutdown(zx_handle_t handle, uint32_t options);
zx_socket_shutdown() attempts to prevent future reads or writes on a socket, where options can be a combination of ZX_SOCKET_SHUTDOWN_READ and ZX_SOCKET_SHUTDOWN_WRITE:
If ZX_SOCKET_SHUTDOWN_READ is passed to options, then reading is disabled for the socket endpoint at handle. All data buffered in the socket at the time of the call can be read, but further reads from this endpoint or writes to the other endpoint of the socket will fail with ZX_ERR_BAD_STATE.
If ZX_SOCKET_SHUTDOWN_WRITE is passed to options, then writing is disabled for the socket endpoint at handle. Further writes to this endpoint or reads from the other endpoint of the socket will fail with ZX_ERR_BAD_STATE.
handle must be of type ZX_OBJ_TYPE_SOCKET and have ZX_RIGHT_WRITE.
zx_socket_shutdown() returns ZX_OK on success.
ZX_ERR_BAD_HANDLE handle is not a valid handle.
ZX_ERR_WRONG_TYPE handle is not a socket handle.
ZX_ERR_ACCESS_DENIED handle does not have ZX_RIGHT_WRITE.
ZX_ERR_INVALID_ARGS options contains an undefined flag.
