mysql_get_optionv
Syntax
int mysql_get_optionv(MYSQL * mysql, enum mysql_option, void * arg, ...);
mysql
- a mysql handle, which was previously allocated by mysql_init() or mysql_real_connect().mysql_option
- the option you want to retrieve. See description below.arg
- pointer to a variable for storing value of the specified option....
- variable argument list
Description
Retrieves the value for a given option which was previously set by mysql_optionsv.
Returns zero on success, non zero if an error occurred (invalid option).
This function was added in MariaDB Connector/C 3.0.0.
Options
Boolean values (my_bool)
- MYSQL_OPT_COMPRESS
- MYSQL_OPT_NAMED_PIPE
- MYSQL_OPT_RECONNECT
- MYSQL_REPORT_DATA_TRUNCATION
- MYSQL_OPT_NONBLOCK
- MYSQL_OPT_SSL_VERIFY_SERVER_CERT
- MARIADB_OPT_CONNECTION_READ_ONLY
- MYSQL_SECURE_AUTH
Integer values
- MYSQL_OPT_CONNECT_TIMEOUT
- MYSQL_OPT_READ_TIMEOUT
- MYSQL_OPT_WRITE_TIMEOUT
- MYSQL_OPT_LOCAL_INFILE
- MYSQL_OPT_PROTOCOL
Character values
- MYSQL_INIT_COMMAND
- MYSQL_READ_DEFAULT_FILE
- MYSQL_READ_DEFAULT_GROUP
- MYSQL_SET_CHARSET_NAME
- MYSQL_PLUGIN_DIR
- MYSQL_OPT_SSL_KEY
- MYSQL_OPT_SSL_CERT
- MYSQL_OPT_SSL_CA
- MYSQL_OPT_SSL_CAPATH
- MYSQL_OPT_SSL_CRL
- MYSQL_OPT_SSL_CRLPATH
- MYSQL_OPT_SSL_CIPHER
- MARIADB_OPT_SSL_FP
- MARIADB_OPT_SSL_FPLIST
- MARIADB_OPT_SSL_PASSPHRASE
- MYSQL_DEFAULT_AUTH
- MYSQL_OPT_BIND
- MARIADB_OPT_CONNECTION_HANDLER
Misc
- MYSQL_PROGRESS_CALLBACK: requires a function pointer *(const MYSQL *, uint, uint, double, const char *, uint))arg)
- MYSQL_CONNECT_ATTRS: this option requires 5 parameters:
/* get number of connection attributes */ int i, elements= 0; char **key, **value; mysql_get_optionv(mysql, MYSQL_CONNECT_ATTRS, NULL, NULL, (void *)&elements); key= (char **)malloc(sizeof(char *) * elements); val= (char **)malloc(sizeof(char *) * elements); mysql_get_optionv(mysql, MYSQL_OPT_CONNECT_ATTRS, &key, &val, &elements); for (i=0; i < elements; i++) printf("key: %s value: %s", key[i], val[i]);
- MARIADB_OPT_USERDATA: retrieves userdata for a given key.
const char *ssh_user; mysql_get_optionv(mysql, MARIADB_OPT_USERDATA, "ssh_user", (void *)ssh_user);
See also
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