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# sasl_seterror - set the error string

## Synopsis

    #include <sasl/sasl.h>

    void sasl_seterror(sasl_conn_t *conn,
                       unsigned flags,
                       const char *fmt,
                       ...);

## Description

void sasl_seterror(sasl_conn_t *conn,
unsigned flags,
const char *fmt,
...);

  The sasl_seterror() interface sets the error string that will be returned by sasl_errdetail(3). Use syslog(3) style formatting; that is, use printf()—style with %m as the most recent errno error.

  The sasl_seterror() interface is primarily used by server callback functions and internal plugins, for example, with the sasl_authorize_t(3) callback. The sasl_seterror() interface triggers a call to the SASL logging callback, if any, with a level of SASL_LOG_FAIL, unless the SASL_NOLOG flag is set.

  Make the message string sensitive to the current language setting. If there is no SASL_CB_LANGUAGE callback, message strings must be i‐default. Otherwise, UTF‐8 is used. Use of RFC 2482 for mixed‐language text is encouraged.

  If the value of conn is NULL, the sasl_seterror() interface fails.

  Parameters

    - conn – The sasl_conn_t for which the call to sasl_seterror() applies.

    - flags – If set to SASL_NOLOG, the call to sasl_seterror() is not logged.

    - fmt – A syslog(3) style format string.

## Return Value

No return values.

## See also

sasl_errdetail(3), syslog(3), RFC 2482