Use more the ND_TTEST_1() macro

[tcpdump] / print-icmp.c

diff --git a/print-icmp.c b/print-icmp.c
index 2e76beb213ec852eabf20d068ccbeb759fc33760..a9a72014fbef7151ee52eed22860449397cd4833 100644 (file)
--- a/print-icmp.c
+++ b/print-icmp.c
@@ -336,6 +336,7 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
        const struct ip *ip;
        const char *str, *fmt;
        const struct ip *oip;
+       uint8_t ip_proto;
        const struct udphdr *ouh;
         const uint8_t *obj_tptr;
         uint32_t raw_label;
@@ -368,11 +369,11 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
                switch (dp->icmp_code) {
 
                case ICMP_UNREACH_PROTOCOL:
-                       ND_TCHECK(dp->icmp_ip.ip_p);
+                       ND_TCHECK_1(dp->icmp_ip.ip_p);
                        (void)snprintf(buf, sizeof(buf),
                            "%s protocol %d unreachable",
                            ipaddr_string(ndo, &dp->icmp_ip.ip_dst),
-                           dp->icmp_ip.ip_p);
+                           EXTRACT_U_1(dp->icmp_ip.ip_p));
                        break;
 
                case ICMP_UNREACH_PORT:
@@ -382,7 +383,8 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
                        ouh = (const struct udphdr *)(((const u_char *)oip) + hlen);
                        ND_TCHECK(ouh->uh_dport);
                        dport = EXTRACT_BE_U_2(&ouh->uh_dport);
-                       switch (oip->ip_p) {
+                       ip_proto = EXTRACT_U_1(oip->ip_p);
+                       switch (ip_proto) {
 
                        case IPPROTO_TCP:
                                (void)snprintf(buf, sizeof(buf),
@@ -402,14 +404,14 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
                                (void)snprintf(buf, sizeof(buf),
                                        "%s protocol %u port %u unreachable",
                                        ipaddr_string(ndo, &oip->ip_dst),
-                                       oip->ip_p, dport);
+                                       ip_proto, dport);
                                break;
                        }
                        break;
 
                case ICMP_UNREACH_NEEDFRAG:
                    {
-                       register const struct mtu_discovery *mp;
+                       const struct mtu_discovery *mp;
                        mp = (const struct mtu_discovery *)(const u_char *)&dp->icmp_void;
                        mtu = EXTRACT_BE_U_2(&mp->nexthopmtu);
                        if (mtu) {
@@ -444,8 +446,8 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
 
        case ICMP_ROUTERADVERT:
            {
-               register const struct ih_rdiscovery *ihp;
-               register const struct id_rdiscovery *idp;
+               const struct ih_rdiscovery *ihp;
+               const struct id_rdiscovery *idp;
                u_int lifetime, num, size;
 
                (void)snprintf(buf, sizeof(buf), "router advertisement");
@@ -557,7 +559,7 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
        }
        ND_PRINT((ndo, "ICMP %s, length %u", str, plen));
        if (ndo->ndo_vflag && !fragmented) { /* don't attempt checksumming if this is a frag */
-               if (ND_TTEST2(*bp, plen)) {
+               if (ND_TTEST_LEN(bp, plen)) {
                        uint16_t sum;
 
                        vec[0].ptr = (const uint8_t *)(const void *)dp;
@@ -600,7 +602,7 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
              * however not all implementations set the length field proper.
              */
             if (!ext_dp->icmp_length &&
-                ND_TTEST2(ext_dp->icmp_ext_version_res, plen - ICMP_EXTD_MINLEN)) {
+                ND_TTEST_LEN(ext_dp->icmp_ext_version_res, plen - ICMP_EXTD_MINLEN)) {
                 vec[0].ptr = (const uint8_t *)(const void *)&ext_dp->icmp_ext_version_res;
                 vec[0].len = plen - ICMP_EXTD_MINLEN;
                 if (in_cksum(vec, 1)) {
@@ -621,7 +623,7 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
             }
 
             hlen = plen - ICMP_EXTD_MINLEN;
-            if (ND_TTEST2(ext_dp->icmp_ext_version_res, hlen)) {
+            if (ND_TTEST_LEN(ext_dp->icmp_ext_version_res, hlen)) {
                 vec[0].ptr = (const uint8_t *)(const void *)&ext_dp->icmp_ext_version_res;
                 vec[0].len = hlen;
                 ND_PRINT((ndo, ", checksum 0x%04x (%scorrect), length %u",