dsn_print.c

[詳解]

/*++
/* NAME
/*  dsn_print
/* SUMMARY
/*  write DSN structure to stream
/* SYNOPSIS
/*  #include <dsn_print.h>
/*
/*  int dsn_print(print_fn, stream, flags, ptr)
/*  ATTR_PRINT_MASTER_FN print_fn;
/*  VSTREAM *stream;
/*  int flags;
/*  void    *ptr;
/* DESCRIPTION
/*  dsn_print() writes a DSN structure to the named stream using
/*  the specified attribute print routine. dsn_print() is meant
/*  to be passed as a call-back to attr_print(), thusly:
/*
/*  ... SEND_ATTR_FUNC(dsn_print, (void *) dsn), ...
/* DIAGNOSTICS
/*  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. */

#include <attr.h>

/* Global library. */

#include <mail_proto.h>
#include <dsn_print.h>

/* dsn_print - write DSN to stream */

int     dsn_print(ATTR_PRINT_MASTER_FN print_fn, VSTREAM *fp,
                  int flags, void *ptr)
{
    DSN    *dsn = (DSN *) ptr;
    int     ret;

    /*
     * The attribute order is determined by backwards compatibility. It can
     * be sanitized after all the ad-hoc DSN read/write code is replaced.
     */
    ret = print_fn(fp, flags | ATTR_FLAG_MORE,
           SEND_ATTR_STR(MAIL_ATTR_DSN_STATUS, dsn->status),
           SEND_ATTR_STR(MAIL_ATTR_DSN_DTYPE, dsn->dtype),
           SEND_ATTR_STR(MAIL_ATTR_DSN_DTEXT, dsn->dtext),
           SEND_ATTR_STR(MAIL_ATTR_DSN_MTYPE, dsn->mtype),
           SEND_ATTR_STR(MAIL_ATTR_DSN_MNAME, dsn->mname),
           SEND_ATTR_STR(MAIL_ATTR_DSN_ACTION, dsn->action),
           SEND_ATTR_STR(MAIL_ATTR_WHY, dsn->reason),
           ATTR_TYPE_END);
    return (ret);
}