NDOize VRRP decoder

[tcpdump] / print-vrrp.c

diff --git a/print-vrrp.c b/print-vrrp.c
index 7920699765d1d7765c29d10a98953875551e6694..27105bf503b1ee73699f1821ca6b55fa46b6b5db 100644 (file)
--- a/print-vrrp.c
+++ b/print-vrrp.c
@@ -23,15 +23,13 @@
  * FOR A PARTICULAR PURPOSE.
  */
 
+#define NETDISSECT_REWORKED
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include <tcpdump-stdinc.h>
 
-#include <stdio.h>
-#include <stdlib.h>
-
 #include "interface.h"
 #include "extract.h"
 #include "addrtoname.h"
@@ -104,80 +102,81 @@ static const struct tok auth2str[] = {
 };
 
 void
-vrrp_print(register const u_char *bp, register u_int len,
-    register const u_char *bp2, int ttl)
+vrrp_print(netdissect_options *ndo,
+           register const u_char *bp, register u_int len,
+           register const u_char *bp2, int ttl)
 {
        int version, type, auth_type = VRRP_AUTH_NONE; /* keep compiler happy */
        const char *type_s;
 
-       TCHECK(bp[0]);
+       ND_TCHECK(bp[0]);
        version = (bp[0] & 0xf0) >> 4;
        type = bp[0] & 0x0f;
        type_s = tok2str(type2str, "unknown type (%u)", type);
-       printf("VRRPv%u, %s", version, type_s);
+       ND_PRINT((ndo, "VRRPv%u, %s", version, type_s));
        if (ttl != 255)
-               printf(", (ttl %u)", ttl);
+               ND_PRINT((ndo, ", (ttl %u)", ttl));
        if (version < 2 || version > 3 || type != VRRP_TYPE_ADVERTISEMENT)
                return;
-       TCHECK(bp[2]);
-       printf(", vrid %u, prio %u", bp[1], bp[2]);
-       TCHECK(bp[5]);
+       ND_TCHECK(bp[2]);
+       ND_PRINT((ndo, ", vrid %u, prio %u", bp[1], bp[2]));
+       ND_TCHECK(bp[5]);
 
        if (version == 2) {
                auth_type = bp[4];
-               printf(", authtype %s", tok2str(auth2str, NULL, auth_type));
-               printf(", intvl %us, length %u", bp[5], len);
+               ND_PRINT((ndo, ", authtype %s", tok2str(auth2str, NULL, auth_type)));
+               ND_PRINT((ndo, ", intvl %us, length %u", bp[5], len));
        } else { /* version == 3 */
                u_int16_t intvl = (bp[4] & 0x0f) << 8 | bp[5];
-               printf(", intvl %ucs, length %u", intvl, len);
+               ND_PRINT((ndo, ", intvl %ucs, length %u", intvl, len));
        }
 
-       if (vflag) {
+       if (ndo->ndo_vflag) {
                int naddrs = bp[3];
                int i;
                char c;
 
-               if (version == 2 && TTEST2(bp[0], len)) {
+               if (version == 2 && ND_TTEST2(bp[0], len)) {
                        struct cksum_vec vec[1];
 
                        vec[0].ptr = bp;
                        vec[0].len = len;
                        if (in_cksum(vec, 1))
-                               printf(", (bad vrrp cksum %x)",
-                                       EXTRACT_16BITS(&bp[6]));
+                               ND_PRINT((ndo, ", (bad vrrp cksum %x)",
+                                       EXTRACT_16BITS(&bp[6])));
                }
 
-               if (version == 3 && TTEST2(bp[0], len)) {
+               if (version == 3 && ND_TTEST2(bp[0], len)) {
                        u_int16_t cksum = nextproto4_cksum((struct ip *)bp2, bp,
                                len, len, IPPROTO_VRRP);
                        if (cksum)
-                               printf(", (bad vrrp cksum %x)",
-                                       EXTRACT_16BITS(&bp[6]));
+                               ND_PRINT((ndo, ", (bad vrrp cksum %x)",
+                                       EXTRACT_16BITS(&bp[6])));
                }
 
-               printf(", addrs");
+               ND_PRINT((ndo, ", addrs"));
                if (naddrs > 1)
-                       printf("(%d)", naddrs);
-               printf(":");
+                       ND_PRINT((ndo, "(%d)", naddrs));
+               ND_PRINT((ndo, ":"));
                c = ' ';
                bp += 8;
                for (i = 0; i < naddrs; i++) {
-                       TCHECK(bp[3]);
-                       printf("%c%s", c, ipaddr_string(bp));
+                       ND_TCHECK(bp[3]);
+                       ND_PRINT((ndo, "%c%s", c, ipaddr_string(bp)));
                        c = ',';
                        bp += 4;
                }
                if (version == 2 && auth_type == VRRP_AUTH_SIMPLE) { /* simple text password */
-                       TCHECK(bp[7]);
-                       printf(" auth \"");
-                       if (fn_printn(bp, 8, snapend)) {
-                               printf("\"");
+                       ND_TCHECK(bp[7]);
+                       ND_PRINT((ndo, " auth \""));
+                       if (fn_printn(bp, 8, ndo->ndo_snapend)) {
+                               ND_PRINT((ndo, "\""));
                                goto trunc;
                        }
-                       printf("\"");
+                       ND_PRINT((ndo, "\""));
                }
        }
        return;
 trunc:
-       printf("[|vrrp]");
+       ND_PRINT((ndo, "[|vrrp]"));
 }