1: #ifndef __APACK_H
2: #define __APACK_H
3:
4:
5: typedef struct tagRawPacket {
6: size_t r_len;
7: uint8_t *r_buf;
8: uint8_t *r_next;
9: } rpack_t;
10:
11: #define RPACK_FREE(x) (assert((x)), memset((x), 0, sizeof(rpack_t)))
12: #define RPACK_INIT(x, b, l) do { assert((x)); RPACK_FREE(x); \
13: (x)->r_buf = (b); \
14: (x)->r_len = (l); \
15: (x)->r_next = (x)->r_buf; \
16: } while (0)
17: #define RPACK_SANITY(x) ((x) && (x)->r_buf && (x)->r_next && (x)->r_next >= (x)->r_buf)
18:
19:
20: /*
21: * rpack_align_and_reserve() - Align & reserve space
22: *
23: * @rp = raw buffer
24: * @siz = need size
25: * return: NULL error or not enough space, !=NULL next position
26: */
27: uint8_t *rpack_align_and_reserve(rpack_t * __restrict rp, size_t siz);
28:
29: /*
30: * rpack_create() - Allocate & init raw packet structure
31: *
32: * @buf = buffer
33: * @buflen = length of buffer
34: * return: NULL error or !=NULL raw packet, should be freed by rpack_destroy()
35: */
36: rpack_t *rpack_create(void * __restrict buf, size_t buflen);
37: /*
38: * rpack_destroy() - Release & free raw packet structure
39: *
40: * @rp = raw packet
41: * return: none
42: */
43: void rpack_destroy(rpack_t ** __restrict rp);
44:
45: /*
46: * rpack_uint8() - Pack/Unpack 8bit value
47: *
48: * @rp = raw buffer
49: * @n = set value if !=NULL
50: * return: -1 error or get value
51: */
52: uint8_t rpack_uint8(rpack_t * __restrict rp, uint8_t * __restrict n);
53:
54:
55: #endif
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