nbd_get_handshake_flags - see which handshake flags are supported
#include <libnbd.h> uint32_t nbd_get_handshake_flags (struct nbd_handle *h);
Return the state of the handshake flags on this handle. When the handle has not yet completed a connection (see nbd_aio_is_created(3)), this returns the flags that the client is willing to use, provided the server also advertises those flags. After the connection is ready (see nbd_aio_is_ready(3)), this returns the flags that were actually agreed on between the server and client. If the NBD protocol defines new handshake flags, then the return value from a newer library version may include bits that were undefined at the time of compilation.
This call returns a bitmask of LIBNBD_HANDSHAKE_FLAG_* values.
This function does not fail.
This function first appeared in libnbd 1.2.
If you need to test if this function is available at compile time check if the following macro is defined:
#define LIBNBD_HAVE_NBD_GET_HANDSHAKE_FLAGS 1
nbd_aio_is_created(3), nbd_aio_is_ready(3), nbd_create(3), nbd_get_protocol(3), nbd_set_handshake_flags(3), nbd_set_strict_mode(3), libnbd(3).
Richard W.M. Jones
Copyright (C) 2019-2021 Red Hat Inc.
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