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/* $OpenBSD: dw.h,v 1.2 2017/08/11 14:58:56 jasper Exp $ */
/*
* Copyright (c) 2016 Martin Pieuchot
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _DW_H_
#define _DW_H_
struct dwbuf {
const char *buf;
size_t len;
};
struct dwattr {
SIMPLEQ_ENTRY(dwattr) dat_next;
uint64_t dat_attr;
uint64_t dat_form;
};
struct dwaval {
SIMPLEQ_ENTRY(dwaval) dav_next;
struct dwattr *dav_dat; /* corresponding attribute */
union {
struct dwbuf _buf;
struct {
const char *_str;
union {
uint64_t _u64;
int64_t _s64;
uint32_t _u32;
uint16_t _u16;
uint8_t _u8;
} _T;
} _V;
} AV;
#define dav_buf AV._buf
#define dav_str AV._V._str
#define dav_u64 AV._V._T._u64
#define dav_s64 AV._V._T._s64
#define dav_u32 AV._V._T._u32
#define dav_u16 AV._V._T._u16
#define dav_u8 AV._V._T._u8
};
SIMPLEQ_HEAD(dwaval_queue, dwaval);
struct dwdie {
SIMPLEQ_ENTRY(dwdie) die_next;
struct dwabbrev *die_dab;
size_t die_offset;
uint8_t die_lvl;
struct dwaval_queue die_avals;
};
SIMPLEQ_HEAD(dwdie_queue, dwdie);
struct dwabbrev {
SIMPLEQ_ENTRY(dwabbrev) dab_next;
uint64_t dab_code;
uint64_t dab_tag;
uint8_t dab_children;
SIMPLEQ_HEAD(, dwattr) dab_attrs;
};
SIMPLEQ_HEAD(dwabbrev_queue, dwabbrev);
struct dwcu {
uint64_t dcu_length;
uint64_t dcu_abbroff;
uint16_t dcu_version;
uint8_t dcu_psize;
size_t dcu_offset; /* offset in the segment */
struct dwabbrev_queue dcu_abbrevs;
struct dwdie_queue dcu_dies;
};
const char *dw_tag2name(uint64_t);
const char *dw_at2name(uint64_t);
const char *dw_form2name(uint64_t);
const char *dw_op2name(uint8_t);
int dw_loc_parse(struct dwbuf *, uint8_t *, uint64_t *, uint64_t *);
int dw_ab_parse(struct dwbuf *, struct dwabbrev_queue *);
int dw_cu_parse(struct dwbuf *, struct dwbuf *, size_t, struct dwcu **);
void dw_dabq_purge(struct dwabbrev_queue *);
void dw_dcu_free(struct dwcu *);
#endif /* _DW_H_ */
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