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# sasl_getprop - Get a SASL property

## Synopsis

    #include <sasl/sasl.h>

    int sasl_getprop(sasl_conn_t *conn,
                    int propnum,
                    const void ** pvalue);

## Description

`int sasl_getprop(sasl_conn_t *conn,`
`int propnum,`
`const void ** pvalue);`

  sasl_getprop gets the value of a SASL property. For example after successful authentication a server may wish to know the authorization name. Or a client application may wish to know the strength of the negotiated security layer.

  Parameters: | conn – is the SASL connection context propnum – is the identifier for the property requested pvalue – is filled on success. List of properties: SASL_USERNAME ‐ pointer to NUL terminated user name SASL_SSF ‐ security layer security strength factor, if 0, call to sasl_encode(3), sasl_decode(3) unnecessary SASL_MAXOUTBUF ‐ security layer max output buf unsigned SASL_DEFUSERREALM ‐ server authentication realm used SASL_GETOPTCTX ‐ context for getopt callback SASL_IPLOCALPORT ‐ local address string SASL_IPREMOTEPORT ‐ remote address string SASL_SERVICE ‐ service passed to sasl_*_new SASL_SERVERFQDN ‐ serverFQDN passed to sasl_*_new SASL_AUTHSOURCE ‐ name of auth source last used, useful for failed authentication tracking SASL_MECHNAME ‐ active mechanism name, if any SASL_PLUGERR ‐ similar to sasl_errdetail

## Return Value

SASL callback functions should return SASL return codes. See sasl.h for a complete list. `SASL_OK` indicates success.

Other return codes indicate errors and should be handled.

## See Also

RFC 4422,:saslman:sasl(3), sasl_errors(3) sasl_server_new(3), sasl_client_new(3)