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      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  * 3. The name of David Young may not be used to endorse or promote
     13  *    products derived from this software without specific prior
     14  *    written permission.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY
     17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     18  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
     19  * PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL DAVID
     20  * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
     21  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
     22  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     24  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     25  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
     27  * OF SUCH DAMAGE.
     28  */
     29 
     30 #ifndef _CPACK_H
     31 #define _CPACK_H
     32 
     33 struct cpack_state {
     34 	u_int8_t					*c_buf;
     35 	u_int8_t					*c_next;
     36 	size_t						 c_len;
     37 };
     38 
     39 int cpack_init(struct cpack_state *, u_int8_t *, size_t);
     40 
     41 int cpack_uint8(struct cpack_state *, u_int8_t *);
     42 int cpack_uint16(struct cpack_state *, u_int16_t *);
     43 int cpack_uint32(struct cpack_state *, u_int32_t *);
     44 int cpack_uint64(struct cpack_state *, u_int64_t *);
     45 
     46 #define cpack_int8(__s, __p)	cpack_uint8((__s),  (u_int8_t*)(__p))
     47 #define cpack_int16(__s, __p)	cpack_uint16((__s), (u_int16_t*)(__p))
     48 #define cpack_int32(__s, __p)	cpack_uint32((__s), (u_int32_t*)(__p))
     49 #define cpack_int64(__s, __p)	cpack_uint64((__s), (u_int64_t*)(__p))
     50 
     51 #endif /* _CPACK_H */
     52