Replace a handle.
#include <zircon/syscalls.h> zx_status_t zx_handle_replace(zx_handle_t handle, zx_rights_t rights, zx_handle_t* out);
zx_handle_replace() creates a replacement for handle, referring to
the same underlying object, with new access rights rights.
handle is always invalidated.
If rights is ZX_RIGHT_SAME_RIGHTS, the replacement handle will have the same rights as the original handle. Otherwise, rights must be a subset of original handle's rights.
zx_handle_replace() returns ZX_OK and the replacement handle (via out)
ZX_ERR_BAD_HANDLE handle isn't a valid handle.
ZX_ERR_INVALID_ARGS The rights requested are not a subset of handle's rights or out is an invalid pointer.
ZX_ERR_NO_MEMORY Failure due to lack of memory. There is no good way for userspace to handle this (unlikely) error. In a future build this error will no longer occur.
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