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Diffstat (limited to 'cpack.h')
| -rw-r--r-- | cpack.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/cpack.h b/cpack.h new file mode 100644 index 0000000000000..3072e0c37411b --- /dev/null +++ b/cpack.h @@ -0,0 +1,56 @@ +/*- + * Copyright (c) 2003, 2004 David Young. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of David Young may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, + * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A + * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID + * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGE. + */ + +#ifndef _CPACK_H +#define _CPACK_H + +struct cpack_state { + const uint8_t *c_buf; + const uint8_t *c_next; + size_t c_len; +}; + +int cpack_init(struct cpack_state *, const uint8_t *, size_t); + +int cpack_uint8(struct cpack_state *, uint8_t *); +int cpack_uint16(struct cpack_state *, uint16_t *); +int cpack_uint32(struct cpack_state *, uint32_t *); +int cpack_uint64(struct cpack_state *, uint64_t *); + +const uint8_t *cpack_next_boundary(const uint8_t *buf, const uint8_t *p, size_t alignment); +const uint8_t *cpack_align_and_reserve(struct cpack_state *cs, size_t wordsize); + +#define cpack_int8(__s, __p) cpack_uint8((__s), (uint8_t*)(__p)) +#define cpack_int16(__s, __p) cpack_uint16((__s), (uint16_t*)(__p)) +#define cpack_int32(__s, __p) cpack_uint32((__s), (uint32_t*)(__p)) +#define cpack_int64(__s, __p) cpack_uint64((__s), (uint64_t*)(__p)) + +extern int cpack_advance(struct cpack_state *, const size_t); + +#endif /* _CPACK_H */ |