Oracle 5.0 Reference Manual page 2179

Return Values
An unsigned integer representing the protocol version used by the current connection.
Errors
None.
20.6.6.31.
mysql_get_server_info()
const char *mysql_get_server_info(MYSQL *mysql)
Description
Returns a string that represents the server version number.
Return Values
A character string that represents the server version number.
Errors
None.
20.6.6.32.
mysql_get_server_version()
unsigned long mysql_get_server_version(MYSQL *mysql)
Description
Returns the version number of the server as an integer.
Return Values
A number that represents the MySQL server version in this format:
major_version*10000 + minor_version *100 + sub_version
For example, 5.0.12 is returned as 50012.
This function is useful in client programs for quickly determining whether some version-specific server
capability exists.
Errors
None.
20.6.6.33.
mysql_get_ssl_cipher()
const char *mysql_get_ssl_cipher(MYSQL *mysql)
Description
mysql_get_ssl_cipher()
is the connection handler returned from mysql_init().
mysql
This function was added in MySQL 5.0.23.
Return Values
A string naming the SSL cipher used for the connection, or
C API Function Descriptions
returns the SSL cipher used for the given connection to the server.
2159
if no cipher is being used.
NULL