cpack.h File Reference

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Data Structures
struct	cpack_state
Defines
#define	cpack_int8(__s, __p)   cpack_uint8((__s), (u_int8_t*)(__p))
#define	cpack_int16(__s, __p)   cpack_uint16((__s), (u_int16_t*)(__p))
#define	cpack_int32(__s, __p)   cpack_uint32((__s), (u_int32_t*)(__p))
#define	cpack_int64(__s, __p)   cpack_uint64((__s), (u_int64_t*)(__p))
Functions
int	cpack_init (struct cpack_state *, u_int8_t *, size_t)
int	cpack_uint8 (struct cpack_state *, u_int8_t *)
int	cpack_uint16 (struct cpack_state *, u_int16_t *)
int	cpack_uint32 (struct cpack_state *, u_int32_t *)
int	cpack_uint64 (struct cpack_state *, u_int64_t *)

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Define Documentation

#define cpack_int8	(	__s,
		__p		)	cpack_uint8((__s), (u_int8_t*)(__p))

Definition at line 46 of file cpack.h.

Referenced by extract_radiotap_field().

#define cpack_int16	(	__s,
		__p		)	cpack_uint16((__s), (u_int16_t*)(__p))

Definition at line 47 of file cpack.h.

#define cpack_int32	(	__s,
		__p		)	cpack_uint32((__s), (u_int32_t*)(__p))

Definition at line 48 of file cpack.h.

#define cpack_int64	(	__s,
		__p		)	cpack_uint64((__s), (u_int64_t*)(__p))

Definition at line 49 of file cpack.h.

---

Function Documentation

int cpack_init	(	struct cpack_state *	,
		u_int8_t *	,
		size_t
	)

Definition at line 71 of file cpack.c.

References cpack_state::c_buf, cpack_state::c_len, and cpack_state::c_next.

Referenced by FillRadioData().

{
  memset(cs, 0, sizeof(*cs));

  cs->c_buf = buf;
  cs->c_len = buflen;
  cs->c_next = cs->c_buf;

  return 0;
}

int cpack_uint8	(	struct cpack_state *	,
		u_int8_t *
	)

Definition at line 132 of file cpack.c.

References cpack_state::c_buf, cpack_state::c_len, and cpack_state::c_next.

Referenced by extract_radiotap_field().

{
  /* No space left? */
  if ((size_t)(cs->c_next - cs->c_buf) >= cs->c_len)
    return -1;

  *u = *cs->c_next;

  /* Move pointer past the u_int8_t. */
  cs->c_next++;
  return 0;
}

int cpack_uint16	(	struct cpack_state *	,
		u_int16_t *
	)

Definition at line 116 of file cpack.c.

References cpack_state::c_next, cpack_align_and_reserve(), and EXTRACT_LE_16BITS.

Referenced by extract_radiotap_field().

{
  u_int8_t *next;

  if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
    return -1;

  *u = EXTRACT_LE_16BITS(next);

  /* Move pointer past the u_int16_t. */
  cs->c_next = next + sizeof(*u);
  return 0;
}

int cpack_uint32	(	struct cpack_state *	,
		u_int32_t *
	)

Definition at line 100 of file cpack.c.

References cpack_state::c_next, cpack_align_and_reserve(), and EXTRACT_LE_32BITS.

{
  u_int8_t *next;

  if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
    return -1;

  *u = EXTRACT_LE_32BITS(next);

  /* Move pointer past the u_int32_t. */
  cs->c_next = next + sizeof(*u);
  return 0;
}

int cpack_uint64	(	struct cpack_state *	,
		u_int64_t *
	)

Definition at line 84 of file cpack.c.

References cpack_state::c_next, cpack_align_and_reserve(), and EXTRACT_LE_64BITS.

Referenced by extract_radiotap_field().

{
  u_int8_t *next;

  if ((next = cpack_align_and_reserve(cs, sizeof(*u))) == NULL)
    return -1;

  *u = EXTRACT_LE_64BITS(next);

  /* Move pointer past the u_int64_t. */
  cs->c_next = next + sizeof(*u);
  return 0;
}