qmgr_bounce.c

[詳解]

/*++
/* NAME
/*  qmgr_bounce
/* SUMMARY
/*  deal with mail that will not be delivered
/* SYNOPSIS
/*  #include "qmgr.h"
/*
/*  QMGR_QUEUE *qmgr_bounce_recipient(message, recipient, dsn)
/*  QMGR_MESSAGE *message;
/*  RECIPIENT *recipient;
/*  DSN *dsn;
/* DESCRIPTION
/*  qmgr_bounce_recipient() produces a bounce log record.
/*  Once the bounce record is written successfully, the recipient
/*  is marked as done. When the bounce record cannot be written,
/*  the message structure is updated to reflect that the mail is
/*  deferred.
/*
/*  Arguments:
/* .IP message
/*  Open queue file with the message being bounced.
/* .IP recipient
/*  The recipient that will not be delivered.
/* .IP dsn
/*  Delivery status information. See dsn(3).
/* DIAGNOSTICS
/*  Panic: consistency check failure. Fatal: out of memory.
/* LICENSE
/* .ad
/* .fi
/*  The Secure Mailer license must be distributed with this software.
/* AUTHOR(S)
/*  Wietse Venema
/*  IBM T.J. Watson Research
/*  P.O. Box 704
/*  Yorktown Heights, NY 10598, USA
/*--*/

/* System library. */

#include <sys_defs.h>

/* Utility library. */

/* Global library. */

#include <bounce.h>
#include <deliver_completed.h>

/* Application-specific. */

#include "qmgr.h"

/* qmgr_bounce_recipient - bounce one message recipient */

void    qmgr_bounce_recipient(QMGR_MESSAGE *message, RECIPIENT *recipient,
                          DSN *dsn)
{
    MSG_STATS stats;
    int     status;

    status = bounce_append(message->tflags, message->queue_id,
               QMGR_MSG_STATS(&stats, message), recipient,
               "none", dsn);

    if (status == 0)
    deliver_completed(message->fp, recipient->offset);
    else
    message->flags |= status;
}