mysql\_get\_proto\_info(3) MariaDB Connector/C mysql\_get\_proto\_info(3)

## [Name](#Name)

mysql\_get\_proto\_info - Returns protocol version number

## [Synopsis](#Synopsis)

```
#include <mysql.h>
unsigned int mysql_get_proto_info(MYSQL * mysql);
    
```

## [Description](#Description)

Returns the protocol version number for the specified connection

## [Parameter](#Parameter)

•

mysql - a connection identifier, which was previously allocated by [**mysql\_init(3)**](/man/os/mariadb-11.5/mysql_init.3) and connected by [**mysql\_real\_connect(3)**](/man/os/mariadb-11.5/mysql_real_connect.3).

## [Notes](#Notes)

MariaDB Connector/C doesn’t support protocol version 9 and prior.

## [Return value](#Return_value)

The protocol version number in use

## [See also](#See_also)

•

[**mysql\_get\_host\_info(3)**](/man/os/mariadb-11.5/mysql_get_host_info.3)

Version 3.3.1

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Document: mysql_get_proto_info(3) from mariadb-11.5 11.5.2-r4 (Chainguard OS)