const char *msg_type_str;
/* Assuming ItsDpuHeader */
- version = bp[0];
- msg_type = bp[1];
+ version = EXTRACT_U_1(bp);
+ msg_type = EXTRACT_U_1(bp + 1);
msg_type_str = tok2str(msg_type_values, "unknown (%u)", msg_type);
ND_PRINT((ndo, "; ItsPduHeader v:%d t:%d-%s", version, msg_type, msg_type_str));
print_btp(netdissect_options *ndo,
const u_char *bp)
{
- uint16_t dest = EXTRACT_16BITS(bp+0);
- uint16_t src = EXTRACT_16BITS(bp+2);
+ uint16_t dest = EXTRACT_BE_U_2(bp + 0);
+ uint16_t src = EXTRACT_BE_U_2(bp + 2);
ND_PRINT((ndo, "; BTP Dst:%u Src:%u", dest, src));
}
{
uint32_t lat, lon;
- if (!ND_TTEST2(*bp, GEONET_ADDR_LEN))
+ if (!ND_TTEST_LEN(bp, GEONET_ADDR_LEN))
return (-1);
ND_PRINT((ndo, "GN_ADDR:%s ", linkaddr_string (ndo, bp, 0, GEONET_ADDR_LEN)));
- if (!ND_TTEST2(*(bp+12), 8))
+ if (!ND_TTEST_8(bp + 12))
return (-1);
- lat = EXTRACT_32BITS(bp+12);
+ lat = EXTRACT_BE_U_4(bp + 12);
ND_PRINT((ndo, "lat:%d ", lat));
- lon = EXTRACT_32BITS(bp+16);
+ lon = EXTRACT_BE_U_4(bp + 16);
ND_PRINT((ndo, "lon:%d", lon));
return (0);
}
if (length < 36)
goto invalid;
- ND_TCHECK2(*bp, 8);
- version = bp[0] >> 4;
- next_hdr = bp[0] & 0x0f;
- hdr_type = bp[1] >> 4;
- hdr_subtype = bp[1] & 0x0f;
- payload_length = EXTRACT_16BITS(bp+4);
- hop_limit = bp[7];
+ ND_TCHECK_8(bp);
+ version = EXTRACT_U_1(bp) >> 4;
+ next_hdr = EXTRACT_U_1(bp) & 0x0f;
+ hdr_type = EXTRACT_U_1(bp + 1) >> 4;
+ hdr_subtype = EXTRACT_U_1(bp + 1) & 0x0f;
+ payload_length = EXTRACT_BE_U_2(bp + 4);
+ hop_limit = EXTRACT_U_1(bp + 7);
switch (next_hdr) {
case 0: next_hdr_txt = "Any"; break;
if (hdr_size >= 0) {
if (length < (u_int)hdr_size)
goto invalid;
- ND_TCHECK2(*bp, hdr_size);
+ ND_TCHECK_LEN(bp, hdr_size);
length -= hdr_size;
bp += hdr_size;
switch (next_hdr) {
case 2: /* BTP A/B */
if (length < 4)
goto invalid;
- ND_TCHECK2(*bp, 4);
+ ND_TCHECK_4(bp);
print_btp(ndo, bp);
length -= 4;
bp += 4;
* or was that just not
* reporting genuine errors?
*/
- ND_TCHECK2(*bp, 2);
+ ND_TCHECK_2(bp);
print_btp_body(ndo, bp);
}
break;