* cast the pointer to point to one of those, and fetch through it;
* the GCC manual doesn't appear to explicitly say that
* __attribute__((packed)) causes the compiler to generate unaligned-safe
- * code, but it apppears to do so.
+ * code, but it appears to do so.
*
* We do this in case the compiler can generate code using those
* instructions to do an unaligned load and pass stuff to "ntohs()" or
* quantities the hard way - fetch the bytes one at a time and
* assemble them.
*
- * XXX - ARM is a special case. ARMv1 through ARMv5 didn't suppory
+ * XXX - ARM is a special case. ARMv1 through ARMv5 didn't support
* unaligned loads; ARMv6 and later support it *but* have a bit in
* the system control register that the OS can set and that causes
* unaligned loads to fault rather than succeeding.
((uint64_t)(*((const uint8_t *)(p) + 2)) << 16) | \
((uint64_t)(*((const uint8_t *)(p) + 3)) << 8) | \
((uint64_t)(*((const uint8_t *)(p) + 4)) << 0))) : \
- ((int64_t)(INT64_T_CONSTANT(0xFFFFFF0000000000U) | \
+ ((int64_t)(UINT64_C(0xFFFFFF0000000000) | \
((uint64_t)(*((const uint8_t *)(p) + 0)) << 32) | \
((uint64_t)(*((const uint8_t *)(p) + 1)) << 24) | \
((uint64_t)(*((const uint8_t *)(p) + 2)) << 16) | \
((uint64_t)(*((const uint8_t *)(p) + 3)) << 16) | \
((uint64_t)(*((const uint8_t *)(p) + 4)) << 8) | \
((uint64_t)(*((const uint8_t *)(p) + 5)) << 0))) : \
- ((int64_t)(INT64_T_CONSTANT(0xFFFFFFFF00000000U) | \
+ ((int64_t)(UINT64_C(0xFFFFFFFF00000000) | \
((uint64_t)(*((const uint8_t *)(p) + 0)) << 40) | \
((uint64_t)(*((const uint8_t *)(p) + 1)) << 32) | \
((uint64_t)(*((const uint8_t *)(p) + 2)) << 24) | \
((uint64_t)(*((const uint8_t *)(p) + 4)) << 16) | \
((uint64_t)(*((const uint8_t *)(p) + 5)) << 8) | \
((uint64_t)(*((const uint8_t *)(p) + 6)) << 0))) : \
- ((int64_t)(INT64_T_CONSTANT(0xFFFFFFFFFF000000U) | \
+ ((int64_t)(UINT64_C(0xFFFFFFFFFF000000) | \
((uint64_t)(*((const uint8_t *)(p) + 0)) << 48) | \
((uint64_t)(*((const uint8_t *)(p) + 1)) << 40) | \
((uint64_t)(*((const uint8_t *)(p) + 2)) << 32) | \
get_u_1(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_1(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_U_1(p);
}
get_s_1(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_1(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_S_1(p);
}
get_be_u_2(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_2(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_U_2(p);
}
get_be_u_3(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_3(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_U_3(p);
}
get_be_u_4(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_4(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_U_4(p);
}
get_be_u_5(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_5(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_U_5(p);
}
get_be_u_6(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_6(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_U_6(p);
}
get_be_u_7(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_7(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_U_7(p);
}
get_be_u_8(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_8(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_U_8(p);
}
get_be_s_2(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_2(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_S_2(p);
}
get_be_s_3(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_3(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_S_3(p);
}
get_be_s_4(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_4(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_S_4(p);
}
get_be_s_5(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_5(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_S_5(p);
}
get_be_s_6(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_6(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_S_6(p);
}
get_be_s_7(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_7(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_S_7(p);
}
get_be_s_8(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_8(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_BE_S_8(p);
}
get_he_u_2(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_2(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_HE_U_2(p);
}
get_he_u_4(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_4(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_HE_U_4(p);
}
get_he_s_2(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_2(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_HE_S_2(p);
}
get_he_s_4(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_4(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_HE_S_4(p);
}
+/* get_be_f_N */
+
+static inline float
+get_be_f_4(netdissect_options *ndo, const u_char *p)
+{
+ union { /* int to float conversion buffer */
+ float f;
+ uint32_t i;
+ } buf;
+
+ if (!ND_TTEST_4(p))
+ nd_trunc_longjmp(ndo);
+ buf.i = EXTRACT_BE_U_4(p);
+ return buf.f;
+}
+
+static inline double
+get_be_f_8(netdissect_options *ndo, const u_char *p)
+{
+ union { /* int to float conversion buffer */
+ double f;
+ uint64_t i;
+ } buf;
+
+ if (!ND_TTEST_8(p))
+ nd_trunc_longjmp(ndo);
+ buf.i = EXTRACT_BE_U_8(p);
+ return buf.f;
+}
+
/* get_le_u_N */
static inline uint16_t
get_le_u_2(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_2(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_U_2(p);
}
get_le_u_3(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_3(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_U_3(p);
}
get_le_u_4(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_4(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_U_4(p);
}
get_le_u_5(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_5(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_U_5(p);
}
get_le_u_6(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_6(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_U_6(p);
}
get_le_u_7(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_7(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_U_7(p);
}
get_le_u_8(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_8(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_U_8(p);
}
get_le_s_2(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_2(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_S_2(p);
}
get_le_s_3(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_3(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_S_3(p);
}
get_le_s_4(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_4(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_S_4(p);
}
get_le_s_8(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_8(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_LE_S_8(p);
}
get_ipv4_to_host_order(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_4(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_IPV4_TO_HOST_ORDER(p);
}
get_ipv4_to_network_order(netdissect_options *ndo, const u_char *p)
{
if (!ND_TTEST_4(p))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
return EXTRACT_IPV4_TO_NETWORK_ORDER(p);
}
get_cpy_bytes(netdissect_options *ndo, u_char *dst, const u_char *p, size_t len)
{
if (!ND_TTEST_LEN(p, len))
- longjmp(ndo->ndo_truncated, 1);
+ nd_trunc_longjmp(ndo);
UNALIGNED_MEMCPY(dst, p, len);
}
#define GET_BE_S_7(p) get_be_s_7(ndo, (const u_char *)(p))
#define GET_BE_S_8(p) get_be_s_8(ndo, (const u_char *)(p))
+#define GET_BE_F_4(p) get_be_f_4(ndo, (const u_char *)(p))
+#define GET_BE_F_8(p) get_be_f_8(ndo, (const u_char *)(p))
+
#define GET_HE_U_2(p) get_he_u_2(ndo, (const u_char *)(p))
#define GET_HE_U_4(p) get_he_u_4(ndo, (const u_char *)(p))