header.h

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00001 /**
00002  * @file ccn/header.h
00003  *
00004  * Part of the CCNx C Library.
00005  *
00006  * Copyright (C) 2009 Palo Alto Research Center, Inc.
00007  *
00008  * This library is free software; you can redistribute it and/or modify it
00009  * under the terms of the GNU Lesser General Public License version 2.1
00010  * as published by the Free Software Foundation.
00011  * This library is distributed in the hope that it will be useful,
00012  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00013  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
00014  * Lesser General Public License for more details. You should have received
00015  * a copy of the GNU Lesser General Public License along with this library;
00016  * if not, write to the Free Software Foundation, Inc., 51 Franklin Street,
00017  * Fifth Floor, Boston, MA 02110-1301 USA.
00018  */
00019 
00020 #ifndef CCN_HEADER_DEFINED
00021 #define CCN_HEADER_DEFINED
00022 
00023 #include <stddef.h>
00024 #include <ccn/charbuf.h>
00025 
00026 struct ccn_header {
00027     uintmax_t start;
00028     uintmax_t count;
00029     uintmax_t block_size;
00030     uintmax_t length;
00031     struct ccn_charbuf *root_digest;
00032     struct ccn_charbuf *content_digest;
00033 };
00034 
00035 struct ccn_header *ccn_header_parse(const unsigned char *, size_t);
00036 
00037 void ccn_header_destroy(struct ccn_header **);
00038 
00039 int ccnb_append_header(struct ccn_charbuf *, const struct ccn_header *);
00040 
00041 struct ccn_header *ccn_get_header(struct ccn *, struct ccn_charbuf *, int);
00042 
00043 #endif

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