[#BIO_socket_nbio]
= BIO_socket_nbio
:mrdocs:

Set or clear non‐blocking mode on a socket file descriptor.

== Synopsis

Declared in `<openssl/bio.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BIO_socket_nbio(
    int fd,
    int mode);
----

== Return Value

1 on success, or 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *fd*
| Socket descriptor to configure.
| *mode*
| Non‐zero to enable non‐blocking I/O; 0 to disable.
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#