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129 lines
6.9 KiB
C
129 lines
6.9 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/* dbus-marshal-header.h Managing marshaling/demarshaling of message headers
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*
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* Copyright (C) 2005 Red Hat, Inc.
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*
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* Licensed under the Academic Free License version 2.1
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef DBUS_MARSHAL_HEADER_H
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#define DBUS_MARSHAL_HEADER_H
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#include <config.h>
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#include <dbus/dbus-marshal-basic.h>
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#include <dbus/dbus-marshal-validate.h>
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typedef struct DBusHeader DBusHeader;
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typedef struct DBusHeaderField DBusHeaderField;
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#define _DBUS_HEADER_FIELD_VALUE_UNKNOWN -1
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#define _DBUS_HEADER_FIELD_VALUE_NONEXISTENT -2
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/**
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* Cached information about a header field in the message
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*/
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struct DBusHeaderField
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{
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int value_pos; /**< Position of field value, or -1/-2 */
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};
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/**
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* Message header data and some cached details of it.
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*/
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struct DBusHeader
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{
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DBusString data; /**< Header network data, stored
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* separately from body so we can
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* independently realloc it.
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*/
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DBusHeaderField fields[DBUS_HEADER_FIELD_LAST + 1]; /**< Track the location
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* of each field in header
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*/
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dbus_uint32_t padding : 3; /**< bytes of alignment in header */
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dbus_uint32_t byte_order : 8; /**< byte order of header */
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};
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dbus_bool_t _dbus_header_init (DBusHeader *header,
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int byte_order);
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void _dbus_header_free (DBusHeader *header);
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void _dbus_header_reinit (DBusHeader *header,
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int byte_order);
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dbus_bool_t _dbus_header_create (DBusHeader *header,
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int type,
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const char *destination,
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const char *path,
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const char *interface,
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const char *member,
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const char *error_name);
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dbus_bool_t _dbus_header_copy (const DBusHeader *header,
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DBusHeader *dest);
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int _dbus_header_get_message_type (DBusHeader *header);
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void _dbus_header_set_serial (DBusHeader *header,
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dbus_uint32_t serial);
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dbus_uint32_t _dbus_header_get_serial (DBusHeader *header);
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void _dbus_header_update_lengths (DBusHeader *header,
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int body_len);
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dbus_bool_t _dbus_header_set_field_basic (DBusHeader *header,
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int field,
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int type,
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const void *value);
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dbus_bool_t _dbus_header_get_field_basic (DBusHeader *header,
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int field,
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int type,
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void *value);
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dbus_bool_t _dbus_header_get_field_raw (DBusHeader *header,
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int field,
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const DBusString **str,
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int *pos);
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dbus_bool_t _dbus_header_delete_field (DBusHeader *header,
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int field);
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void _dbus_header_toggle_flag (DBusHeader *header,
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dbus_uint32_t flag,
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dbus_bool_t value);
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dbus_bool_t _dbus_header_get_flag (DBusHeader *header,
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dbus_uint32_t flag);
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dbus_bool_t _dbus_header_ensure_signature (DBusHeader *header,
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DBusString **type_str,
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int *type_pos);
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dbus_bool_t _dbus_header_have_message_untrusted (int max_message_length,
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DBusValidity *validity,
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int *byte_order,
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int *fields_array_len,
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int *header_len,
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int *body_len,
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const DBusString *str,
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int start,
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int len);
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dbus_bool_t _dbus_header_load (DBusHeader *header,
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DBusValidationMode mode,
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DBusValidity *validity,
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int byte_order,
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int fields_array_len,
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int header_len,
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int body_len,
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const DBusString *str,
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int start,
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int len);
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void _dbus_header_byteswap (DBusHeader *header,
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int new_order);
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#endif /* DBUS_MARSHAL_HEADER_H */
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