[exim] How to get Subject in transport?

Página Principal
Apagar esta mensagem
Responder a esta mensagem
Autor: Алексей Киреев
Data:  
Para: exim-users
Assunto: [exim] How to get Subject in transport?
Hello.

How can i get Subject header in transport appendfile.c?

log_write(0, LOG_MAIN, "DEBUG: transport delivered to dir=%s from=%s, subject=%s, size=%d", path, sender_address, subject, message_size);

Variable "subject" does not exists, other variables are present.