11de50e9fSSam Leffler /*- 21de50e9fSSam Leffler * Copyright (c) 2003, 2004 David Young. All rights reserved. 31de50e9fSSam Leffler * 41de50e9fSSam Leffler * Redistribution and use in source and binary forms, with or without 51de50e9fSSam Leffler * modification, are permitted provided that the following conditions 61de50e9fSSam Leffler * are met: 71de50e9fSSam Leffler * 1. Redistributions of source code must retain the above copyright 81de50e9fSSam Leffler * notice, this list of conditions and the following disclaimer. 91de50e9fSSam Leffler * 2. Redistributions in binary form must reproduce the above copyright 101de50e9fSSam Leffler * notice, this list of conditions and the following disclaimer in the 111de50e9fSSam Leffler * documentation and/or other materials provided with the distribution. 121de50e9fSSam Leffler * 3. The name of David Young may not be used to endorse or promote 131de50e9fSSam Leffler * products derived from this software without specific prior 141de50e9fSSam Leffler * written permission. 151de50e9fSSam Leffler * 161de50e9fSSam Leffler * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY 171de50e9fSSam Leffler * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 181de50e9fSSam Leffler * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 191de50e9fSSam Leffler * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID 201de50e9fSSam Leffler * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 211de50e9fSSam Leffler * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 221de50e9fSSam Leffler * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 231de50e9fSSam Leffler * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 241de50e9fSSam Leffler * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 251de50e9fSSam Leffler * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261de50e9fSSam Leffler * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 271de50e9fSSam Leffler * OF SUCH DAMAGE. 281de50e9fSSam Leffler */ 291de50e9fSSam Leffler 301de50e9fSSam Leffler #ifndef _CPACK_H 311de50e9fSSam Leffler #define _CPACK_H 321de50e9fSSam Leffler 331de50e9fSSam Leffler struct cpack_state { 34*3c602fabSXin LI uint8_t *c_buf; 35*3c602fabSXin LI uint8_t *c_next; 361de50e9fSSam Leffler size_t c_len; 371de50e9fSSam Leffler }; 381de50e9fSSam Leffler 39*3c602fabSXin LI int cpack_init(struct cpack_state *, uint8_t *, size_t); 401de50e9fSSam Leffler 41*3c602fabSXin LI int cpack_uint8(struct cpack_state *, uint8_t *); 42*3c602fabSXin LI int cpack_uint16(struct cpack_state *, uint16_t *); 43*3c602fabSXin LI int cpack_uint32(struct cpack_state *, uint32_t *); 44*3c602fabSXin LI int cpack_uint64(struct cpack_state *, uint64_t *); 451de50e9fSSam Leffler 46*3c602fabSXin LI uint8_t *cpack_next_boundary(uint8_t *buf, uint8_t *p, size_t alignment); 47*3c602fabSXin LI uint8_t *cpack_align_and_reserve(struct cpack_state *cs, size_t wordsize); 48cac3dcd5SXin LI 49*3c602fabSXin LI #define cpack_int8(__s, __p) cpack_uint8((__s), (uint8_t*)(__p)) 50*3c602fabSXin LI #define cpack_int16(__s, __p) cpack_uint16((__s), (uint16_t*)(__p)) 51*3c602fabSXin LI #define cpack_int32(__s, __p) cpack_uint32((__s), (uint32_t*)(__p)) 52*3c602fabSXin LI #define cpack_int64(__s, __p) cpack_uint64((__s), (uint64_t*)(__p)) 53*3c602fabSXin LI 54*3c602fabSXin LI extern int cpack_advance(struct cpack_state *, const size_t); 551de50e9fSSam Leffler 561de50e9fSSam Leffler #endif /* _CPACK_H */ 57