ICMP: Make a few cppcheck-inspired fixups.

[tcpdump] / print-icmp.c

diff --git a/print-icmp.c b/print-icmp.c
index 366094eff829c08e519017334fdaa656ce40e333..0a949518d57f8039b7417246e1f9241464f7e887 100644 (file)
--- a/print-icmp.c
+++ b/print-icmp.c
@@ -400,7 +400,7 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
 
                        default:
                                (void)snprintf(buf, sizeof(buf),
-                                       "%s protocol %d port %d unreachable",
+                                       "%s protocol %u port %u unreachable",
                                        ipaddr_string(ndo, &oip->ip_dst),
                                        oip->ip_p, dport);
                                break;
@@ -506,7 +506,7 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
                        break;
 
                default:
-                       (void)snprintf(buf, sizeof(buf), "time exceeded-#%d",
+                       (void)snprintf(buf, sizeof(buf), "time exceeded-#%u",
                            dp->icmp_code);
                        break;
                }
@@ -515,11 +515,11 @@ icmp_print(netdissect_options *ndo, const u_char *bp, u_int plen, const u_char *
        case ICMP_PARAMPROB:
                if (dp->icmp_code)
                        (void)snprintf(buf, sizeof(buf),
-                           "parameter problem - code %d", dp->icmp_code);
+                           "parameter problem - code %u", dp->icmp_code);
                else {
                        ND_TCHECK(dp->icmp_pptr);
                        (void)snprintf(buf, sizeof(buf),
-                           "parameter problem - octet %d", dp->icmp_pptr);
+                           "parameter problem - octet %u", dp->icmp_pptr);
                }
                break;
 
@@ -557,14 +557,14 @@ 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 */
-               uint16_t sum, icmp_sum;
-
                if (ND_TTEST2(*bp, plen)) {
+                       uint16_t sum;
+
                        vec[0].ptr = (const uint8_t *)(const void *)dp;
                        vec[0].len = plen;
                        sum = in_cksum(vec, 1);
                        if (sum != 0) {
-                               icmp_sum = EXTRACT_16BITS(&dp->icmp_cksum);
+                               uint16_t icmp_sum = EXTRACT_16BITS(&dp->icmp_cksum);
                                ND_PRINT((ndo, " (wrong icmp cksum %x (->%x)!)",
                                             icmp_sum,
                                             in_cksum_shouldbe(icmp_sum, sum)));