--- libelwix/inc/elwix/apack.h 2013/06/28 11:06:31 1.1.2.2 +++ libelwix/inc/elwix/apack.h 2013/07/09 00:18:19 1.3 @@ -8,6 +8,7 @@ typedef struct tagRawPacket { uint8_t *r_next; } rpack_t; +#define RPACK_INITIALIZER { .r_len = 0, .r_buf = NULL, .r_next = NULL } #define RPACK_FREE(x) (assert((x)), memset((x), 0, sizeof(rpack_t))) #define RPACK_INIT(x, b, l) do { assert((x)); RPACK_FREE(x); \ (x)->r_buf = (b); \ @@ -15,8 +16,90 @@ typedef struct tagRawPacket { (x)->r_next = (x)->r_buf; \ } while (0) #define RPACK_SANITY(x) ((x) && (x)->r_buf && (x)->r_next && (x)->r_next >= (x)->r_buf) +#define RPACK_LEN(x) (assert((x)), (x)->r_len) +#define RPACK_REWIND(x) (assert((x)), (x)->r_next = (x)->r_buf) +#define RPACK_SET_16(x, n) do { assert((x)); \ + *((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \ + *((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \ + } while (0) +#define RPACK_SET_24(x, n) do { assert((x)); \ + *((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \ + *((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \ + *((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \ + } while (0) +#define RPACK_SET_32(x, n) do { assert((x)); \ + *((uint8_t *) (x) + 3) = *((const uint8_t *) (n) + 3); \ + *((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \ + *((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \ + *((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \ + } while (0) +#define RPACK_SET_64(x, n) do { assert((x)); \ + *((uint8_t *) (x) + 7) = *((const uint8_t *) (n) + 7); \ + *((uint8_t *) (x) + 6) = *((const uint8_t *) (n) + 6); \ + *((uint8_t *) (x) + 5) = *((const uint8_t *) (n) + 5); \ + *((uint8_t *) (x) + 4) = *((const uint8_t *) (n) + 4); \ + *((uint8_t *) (x) + 3) = *((const uint8_t *) (n) + 3); \ + *((uint8_t *) (x) + 2) = *((const uint8_t *) (n) + 2); \ + *((uint8_t *) (x) + 1) = *((const uint8_t *) (n) + 1); \ + *((uint8_t *) (x) + 0) = *((const uint8_t *) (n) + 0); \ + } while (0) +#define EXTRACT_LE_8(x) (assert((x)), *(x)) +#define EXTRACT_LE_16(x) (assert((x)), (u_int16_t) ( \ + (uint16_t) *((const uint8_t *) (x) + 1) << 8 | \ + (uint16_t) *((const uint8_t *) (x) + 0) \ + )) +#define EXTRACT_LE_24(x) (assert((x)), (u_int32_t) ( \ + (uint32_t) *((const uint8_t *) (x) + 2) << 16 | \ + (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \ + (uint32_t) *((const uint8_t *) (x) + 0) \ + )) +#define EXTRACT_LE_32(x) (assert((x)), (u_int32_t) ( \ + (uint32_t) *((const uint8_t *) (x) + 3) << 24 | \ + (uint32_t) *((const uint8_t *) (x) + 2) << 16 | \ + (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \ + (uint32_t) *((const uint8_t *) (x) + 0) \ + )) +#define EXTRACT_LE_64(x) (assert((x)), (u_int64_t) ( \ + (uint64_t) *((const uint8_t *) (x) + 7) << 56 | \ + (uint64_t) *((const uint8_t *) (x) + 6) << 48 | \ + (uint64_t) *((const uint8_t *) (x) + 5) << 40 | \ + (uint64_t) *((const uint8_t *) (x) + 4) << 32 | \ + (uint64_t) *((const uint8_t *) (x) + 3) << 24 | \ + (uint64_t) *((const uint8_t *) (x) + 2) << 16 | \ + (uint64_t) *((const uint8_t *) (x) + 1) << 8 | \ + (uint64_t) *((const uint8_t *) (x) + 0) \ + )) + +#define EXTRACT_BE_8(x) (assert((x)), *(x)) +#define EXTRACT_BE_16(x) (assert((x)), (u_int16_t) ( \ + (uint16_t) *((const uint8_t *) (x) + 0) << 8 | \ + (uint16_t) *((const uint8_t *) (x) + 1) \ + )) +#define EXTRACT_BE_24(x) (assert((x)), (u_int32_t) ( \ + (uint32_t) *((const uint8_t *) (x) + 0) << 16 | \ + (uint32_t) *((const uint8_t *) (x) + 1) << 8 | \ + (uint32_t) *((const uint8_t *) (x) + 2) \ + )) +#define EXTRACT_BE_32(x) (assert((x)), (u_int32_t) ( \ + (uint32_t) *((const uint8_t *) (x) + 0) << 24 | \ + (uint32_t) *((const uint8_t *) (x) + 1) << 16 | \ + (uint32_t) *((const uint8_t *) (x) + 2) << 8 | \ + (uint32_t) *((const uint8_t *) (x) + 3) \ + )) +#define EXTRACT_BE_64(x) (assert((x)), (u_int64_t) ( \ + (uint64_t) *((const uint8_t *) (x) + 0) << 56 | \ + (uint64_t) *((const uint8_t *) (x) + 1) << 48 | \ + (uint64_t) *((const uint8_t *) (x) + 2) << 40 | \ + (uint64_t) *((const uint8_t *) (x) + 3) << 32 | \ + (uint64_t) *((const uint8_t *) (x) + 4) << 24 | \ + (uint64_t) *((const uint8_t *) (x) + 5) << 16 | \ + (uint64_t) *((const uint8_t *) (x) + 6) << 8 | \ + (uint64_t) *((const uint8_t *) (x) + 7) \ + )) + + /* * rpack_align_and_reserve() - Align & reserve space * @@ -50,6 +133,38 @@ void rpack_destroy(rpack_t ** __restrict rp); * return: -1 error or get value */ uint8_t rpack_uint8(rpack_t * __restrict rp, uint8_t * __restrict n); +/* + * rpack_uint16() - Pack/Unpack 16bit value + * + * @rp = raw buffer + * @n = set value if !=NULL + * return: -1 error or get value + */ +uint16_t rpack_uint16(rpack_t * __restrict rp, uint16_t * __restrict n); +/* + * rpack_uint24() - Pack/Unpack 24bit value + * + * @rp = raw buffer + * @n = set value if !=NULL + * return: -1 error or get value + */ +uint32_t rpack_uint24(rpack_t * __restrict rp, uint32_t * __restrict n); +/* + * rpack_uint32() - Pack/Unpack 32bit value + * + * @rp = raw buffer + * @n = set value if !=NULL + * return: -1 error or get value + */ +uint32_t rpack_uint32(rpack_t * __restrict rp, uint32_t * __restrict n); +/* + * rpack_uint64() - Pack/Unpack 64bit value + * + * @rp = raw buffer + * @n = set value if !=NULL + * return: -1 error or get value + */ +uint64_t rpack_uint64(rpack_t * __restrict rp, uint64_t * __restrict n); #endif