krb5_vset_error_message - Set an extended error message for an error code using a va_list.

void krb5_vset_error_message(krb5_context ctx, krb5_error_code code, const char *fmt, va_list args)

param

[in] ctx - Library context

[in] code - Error code

[in] fmt - Error string for the error code

[in] args - List of vprintf(3) style arguments