header_opts.h

[詳解]

#ifndef _HEADER_OPTS_H_INCLUDED_
#define _HEADER_OPTS_H_INCLUDED_

/*++
/* NAME
/*  header_opts 3h
/* SUMMARY
/*  message header classification
/* SYNOPSIS
/*  #include <header_opts.h>
/* DESCRIPTION
/* .nf

 /* External interface. */

typedef struct {
    const char *name;           /* name, preferred capitalization */
    int     type;           /* type, see below */
    int     flags;          /* flags, see below */
} HEADER_OPTS;

 /*
  * Header types. If we reach 31, we must group the headers we need to
  * remember at the beginning, or we should use fd_set bit sets.
  */
#define HDR_OTHER           0
#define HDR_APPARENTLY_TO       1
#define HDR_BCC             2
#define HDR_CC              3
#define HDR_CONTENT_LENGTH      4
#define HDR_CONTENT_TRANSFER_ENCODING   5
#define HDR_CONTENT_TYPE        6
#define HDR_DATE            7
#define HDR_DELIVERED_TO        8
#define HDR_ERRORS_TO           9
#define HDR_FROM            10
#define HDR_MESSAGE_ID          11
#define HDR_RECEIVED            12
#define HDR_REPLY_TO            13
#define HDR_RESENT_BCC          14
#define HDR_RESENT_CC           15
#define HDR_RESENT_DATE         16
#define HDR_RESENT_FROM         17
#define HDR_RESENT_MESSAGE_ID       18
#define HDR_RESENT_REPLY_TO     19
#define HDR_RESENT_SENDER       20
#define HDR_RESENT_TO           21
#define HDR_RETURN_PATH         22
#define HDR_RETURN_RECEIPT_TO       23
#define HDR_SENDER          24
#define HDR_TO              25
#define HDR_MAIL_FOLLOWUP_TO        26
#define HDR_CONTENT_DESCRIPTION     27
#define HDR_CONTENT_DISPOSITION     28
#define HDR_CONTENT_ID          29
#define HDR_MIME_VERSION        30
#define HDR_DISP_NOTIFICATION       31

 /*
  * Header flags.
  */
#define HDR_OPT_DROP    (1<<0)      /* delete from input */
#define HDR_OPT_SENDER  (1<<1)      /* sender address */
#define HDR_OPT_RECIP   (1<<2)      /* recipient address */
#define HDR_OPT_RR  (1<<3)      /* Resent- header */
#define HDR_OPT_EXTRACT (1<<4)      /* extract flag */
#define HDR_OPT_MIME    (1<<5)      /* MIME header */

#define HDR_OPT_XRECIP  (HDR_OPT_RECIP | HDR_OPT_EXTRACT)

extern const HEADER_OPTS *header_opts_find(const char *);

/* 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
/*--*/

#endif