krb5_vwrap_error_message - Add a prefix to a different error code’s message using a va_list.

void krb5_vwrap_error_message(krb5_context ctx, krb5_error_code old_code, krb5_error_code code, const char * fmt, va_list args)

param:

[in] ctx - Library context

[in] old_code - Previous error code

[in] code - Error code

[in] fmt - Format string for error message prefix

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

This function is similar to krb5_wrap_error_message(), but uses a va_list instead of variadic arguments.