nbd\_aio\_is\_negotiating(3) LIBNBD nbd\_aio\_is\_negotiating(3)

# [NAME](#NAME)

nbd\_aio\_is\_negotiating - check if connection is ready to send handshake option

# [SYNOPSIS](#SYNOPSIS)

```
 #include <libnbd.h>
 int nbd_aio_is_negotiating (
       struct nbd_handle *h
     );
```

# [DESCRIPTION](#DESCRIPTION)

Return true if this connection is ready to start another option negotiation command while handshaking with the server. An option command will move back to the connecting state (see [**nbd\_aio\_is\_connecting**(3)](/man/os/libnbd/nbd_aio_is_connecting.3)). Note that this state cannot be reached unless requested by [**nbd\_set\_opt\_mode**(3)](/man/os/libnbd/nbd_set_opt_mode.3), and even then it only works with newstyle servers; an oldstyle server will skip straight to [**nbd\_aio\_is\_ready**(3)](/man/os/libnbd/nbd_aio_is_ready.3).

# [RETURN VALUE](#RETURN_VALUE)

This call returns a boolean value.

# [ERRORS](#ERRORS)

This function does not fail.

The following parameters must not be NULL: "h". For more information see "Non-NULL parameters" in [**libnbd**(3)](/man/os/libnbd/libnbd.3).

# [VERSION](#VERSION)

This function first appeared in libnbd 1.4.

If you need to test if this function is available at compile time check if the following macro is defined:

```
 #define LIBNBD_HAVE_NBD_AIO_IS_NEGOTIATING 1
```

# [SEE ALSO](#SEE_ALSO)

[**nbd\_aio\_is\_connecting**(3)](/man/os/libnbd/nbd_aio_is_connecting.3), [**nbd\_aio\_is\_ready**(3)](/man/os/libnbd/nbd_aio_is_ready.3), [**nbd\_create**(3)](/man/os/libnbd/nbd_create.3), [**nbd\_set\_opt\_mode**(3)](/man/os/libnbd/nbd_set_opt_mode.3), [**libnbd**(3)](/man/os/libnbd/libnbd.3).

# [AUTHORS](#AUTHORS)

Eric Blake

Richard W.M. Jones

# [COPYRIGHT](#COPYRIGHT)

Copyright Red Hat

# [LICENSE](#LICENSE)

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

2026-10-11 libnbd-1.25.7

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Document: nbd_aio_is_negotiating(3) from libnbd 1.25.7-r3 (Chainguard OS)