1 /*- 2 * Copyright (c) 2003, 2004 David Young. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, 15 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A 16 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID 17 * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED 19 * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 21 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 22 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY 24 * OF SUCH DAMAGE. 25 */ 26 27 #ifndef _CPACK_H 28 #define _CPACK_H 29 30 struct cpack_state { 31 uint8_t *c_buf; 32 uint8_t *c_next; 33 size_t c_len; 34 }; 35 36 int cpack_init(struct cpack_state *, uint8_t *, size_t); 37 38 int cpack_uint8(struct cpack_state *, uint8_t *); 39 int cpack_uint16(struct cpack_state *, uint16_t *); 40 int cpack_uint32(struct cpack_state *, uint32_t *); 41 int cpack_uint64(struct cpack_state *, uint64_t *); 42 43 uint8_t *cpack_next_boundary(uint8_t *buf, uint8_t *p, size_t alignment); 44 uint8_t *cpack_align_and_reserve(struct cpack_state *cs, size_t wordsize); 45 46 #define cpack_int8(__s, __p) cpack_uint8((__s), (uint8_t*)(__p)) 47 #define cpack_int16(__s, __p) cpack_uint16((__s), (uint16_t*)(__p)) 48 #define cpack_int32(__s, __p) cpack_uint32((__s), (uint32_t*)(__p)) 49 #define cpack_int64(__s, __p) cpack_uint64((__s), (uint64_t*)(__p)) 50 51 extern int cpack_advance(struct cpack_state *, const size_t); 52 53 #endif /* _CPACK_H */ 54