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/* GNU mailutils - a suite of utilities for electronic mail
   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU Library General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU Library General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

#ifndef _MAILUTILS_HEADER_H
#define _MAILUTILS_HEADER_H

#include <sys/types.h>
#include <mailutils/stream.h>
#include <mailutils/property.h>

#ifndef __P
#ifdef __STDC__
#define __P(args) args
#else
#define __P(args) ()
#endif
#endif /*__P */

#ifdef __cplusplus
extern "C" {
#endif

#define MU_HEADER_UNIX_FROM             "From "
#define MU_HEADER_RETURN_PATH           "Return-Path"
#define MU_HEADER_RECEIVED              "Received"
#define MU_HEADER_DATE                  "Date"
#define MU_HEADER_FROM                  "From"
#define MU_HEADER_SENDER                "Sender"
#define MU_HEADER_RESENT_FROM           "Resent-From"
#define MU_HEADER_SUBJECT               "Subject"
#define MU_HEADER_SENDER                "Sender"
#define MU_HEADER_RESENT_SENDER         "Resent-SENDER"
#define MU_HEADER_TO                    "To"
#define MU_HEADER_RESENT_TO             "Resent-To"
#define MU_HEADER_CC                    "Cc"
#define MU_HEADER_RESENT_CC             "Resent-Cc"
#define MU_HEADER_BCC                   "Bcc"
#define MU_HEADER_RESENT_BCC            "Resent-Bcc"
#define MU_HEADER_REPLY_TO              "Reply-To"
#define MU_HEADER_RESENT_REPLY_TO       "Resent-Reply-To"
#define MU_HEADER_MESSAGE_ID            "Message-ID"
#define MU_HEADER_RESENT_MESSAGE_ID     "Resent-Message-ID"
#define MU_HEADER_IN_REPLY_TO           "In-Reply-To"
#define MU_HEADER_REFERENCE             "Reference"
#define MU_HEADER_ENCRYPTED             "Encrypted"
#define MU_HEADER_PRECEDENCE            "Precedence"
#define MU_HEADER_STATUS                "Status"
#define MU_HEADER_CONTENT_LENGTH        "Content-Length"
#define MU_HEADER_CONTENT_LANGUAGE      "Content-Language"
#define MU_HEADER_CONTENT_ENCODING      "Content-transfer-encoding"
#define MU_HEADER_CONTENT_TYPE          "Content-Type"
#define MU_HEADER_MIME_VERSION          "MIME-Version"
#define MU_HEADER_X_UIDL                "X-UIDL"
#define MU_HEADER_X_UID                 "X-UID"
#define MU_HEADER_X_IMAPBASE            "X-IMAPbase"

/* Mime support header attribute */

/* forward declaration */
struct _header;
typedef struct _header * header_t;

extern int header_create           __P ((header_t *, const char *,
					 size_t, void *));
extern void header_destroy         __P ((header_t *, void *));
extern void *header_get_owner      __P ((header_t));

extern int header_is_modified      __P ((header_t));
extern int header_clear_modified   __P ((header_t));

extern int header_get_property     __P ((header_t, property_t *));
extern int header_set_property     __P ((header_t, property_t, void *));

extern int header_set_value        __P ((header_t, const char *,
					const char *, int));
extern int header_set_set_value    __P ((header_t,
					 int (*_set_value) __P ((header_t,
								 const char *,
								 const char *,
								 int)),
					 void *));

extern int header_get_value        __P ((header_t, const char *, char *,
					 size_t, size_t *));
extern int header_aget_value       __P ((header_t, const char *, char **));
extern int header_set_get_value    __P ((header_t,
					 int (*_get_value) __P ((header_t,
								 const char *,
								 char *,
								 size_t,
								 size_t *)),
					 void *));
extern int header_set_get_fvalue   __P ((header_t,
					 int (*_get_value) __P ((header_t,
								 const char *,
								 char *,
								 size_t,
								 size_t *)),
					 void *));

extern int header_get_field_count  __P ((header_t, size_t *));
extern int header_get_field_value  __P ((header_t, size_t, char *,
					 size_t, size_t *));
extern int header_aget_field_value __P ((header_t, size_t, char **));
extern int header_get_field_name   __P ((header_t, size_t, char *,
					 size_t, size_t *));
extern int header_aget_field_name  __P ((header_t, size_t, char **));

extern int header_get_stream       __P ((header_t, stream_t *));
extern int header_set_stream       __P ((header_t, stream_t, void *));

extern int header_size             __P ((header_t, size_t *));
extern int header_set_size         __P ((header_t, int (*_size)
					 __P ((header_t, size_t *)), void *));

extern int header_lines            __P ((header_t, size_t *));
extern int header_set_lines        __P ((header_t,
					 int (*_lines) __P ((header_t,
							     size_t *)),
					 void *));

extern int header_set_fill         __P ((header_t,
					 int (*_fill) __P ((header_t, char *,
							    size_t, off_t,
							   size_t *)),
					 void *owner));
#ifdef __cplusplus
}
#endif

#endif /* _MAILUTILS_HEADER_H */

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