]> The Tcpdump Group git mirrors - tcpdump/commitdiff
NDOize ISO CLNS decoder
authorDenis Ovsienko <[email protected]>
Fri, 28 Mar 2014 10:08:48 +0000 (14:08 +0400)
committerDenis Ovsienko <[email protected]>
Fri, 28 Mar 2014 10:08:48 +0000 (14:08 +0400)
13 files changed:
interface.h
netdissect.h
print-atm.c
print-chdlc.c
print-ether.c
print-fr.c
print-gre.c
print-isoclns.c
print-juniper.c
print-llc.c
print-mpls.c
print-null.c
print-ppp.c

index 1b0f059d87433a55698ec24200f3e0f31edf68f6..5e339b9b39a5be65a57b9d8441d3bd781bff2154 100644 (file)
@@ -173,7 +173,6 @@ extern u_int ieee802_11_radio_if_print(const struct pcap_pkthdr *,
        const u_char *);
 extern u_int ieee802_11_radio_avs_if_print(const struct pcap_pkthdr *,
        const u_char *);
-extern void isoclns_print(const u_char *, u_int, u_int);
 extern void krb_print(const u_char *);
 extern u_int llap_print(const u_char *, u_int);
 extern u_int ltalk_if_print(const struct pcap_pkthdr *, const u_char *);
index 7284c43e49ce16e292d70be3311fdcfd5970cf4e..aba31c6e83334291e5cf028d88578a0e8ad1cbb8 100644 (file)
@@ -474,6 +474,7 @@ extern void bgp_print(netdissect_options *, const u_char *, int);
 extern void olsr_print(netdissect_options *, const u_char *, u_int, int);
 extern void forces_print(netdissect_options *, const u_char *, u_int);
 extern void lspping_print(netdissect_options *, const u_char *, u_int);
+extern void isoclns_print(netdissect_options *, const u_char *, u_int, u_int);
 
 /* stuff that has not yet been rototiled */
 
@@ -487,8 +488,6 @@ extern void decnet_print(netdissect_options *,const u_char *,
 extern void default_print(netdissect_options *,const u_char *, u_int);
 
 extern void ieee802_11_if_print(u_char *,const struct pcap_pkthdr *, const u_char *);
-extern void isoclns_print(netdissect_options *,const u_char *,
-                         u_int, u_int, const u_char *, const u_char *);
 extern void krb_print(netdissect_options *,const u_char *, u_int);
 extern void llap_print(netdissect_options *,const u_char *, u_int);
 extern const char *linkaddr_string(netdissect_options *ndo,
index b12295713307f17cc02e6d0306b70c15d55b7ef2..09bbb8ec6fdf89e11df2184f8f13b688da567c83 100644 (file)
@@ -174,7 +174,7 @@ atm_if_print(netdissect_options *ndo,
         if (*p == LLC_UI) {
             if (ndo->ndo_eflag)
                 ND_PRINT((ndo, "CNLPID "));
-            isoclns_print(p+1, length-1, caplen-1);
+            isoclns_print(ndo, p + 1, length - 1, caplen - 1);
             return hdrlen;
         }
 
index c2bb24c699dda290dd924ba213e8e88896b20c90..9ef550f5abce92bb87ac0ea1791638a483e8bed8 100644 (file)
@@ -97,9 +97,9 @@ chdlc_print(netdissect_options *ndo, register const u_char *p, u_int length) {
                 if (*(p+1) == 0x81 ||
                     *(p+1) == 0x82 ||
                     *(p+1) == 0x83)
-                    isoclns_print(p+1, length-1, length-1);
+                    isoclns_print(ndo, p + 1, length - 1, length - 1);
                 else
-                    isoclns_print(p, length, length);
+                    isoclns_print(ndo, p, length, length);
                 break;
        default:
                 if (!ndo->ndo_eflag)
index efbb8cfdbb591aac5eab40135eb734b90ae561ef..624d0c54425dd1890dfbfd2d9b5cb2e53c3a7eaf 100644 (file)
@@ -354,9 +354,9 @@ ethertype_print(netdissect_options *ndo,
                ipx_print(ndo, p, length);
                return (1);
 
-        case ETHERTYPE_ISO:
-                isoclns_print(/*ndo,*/p+1, length-1, length-1);
-                return(1);
+       case ETHERTYPE_ISO:
+               isoclns_print(ndo, p + 1, length - 1, length - 1);
+               return(1);
 
        case ETHERTYPE_PPPOED:
        case ETHERTYPE_PPPOES:
index 6111c50660ca1fe00ae840a1bf7db6d64b0c9c97..d49879b1afaf44a19d0d1ed10c59da09fbc03d9d 100644 (file)
@@ -290,7 +290,7 @@ fr_print(netdissect_options *ndo,
        case NLPID_CLNP:
        case NLPID_ESIS:
        case NLPID_ISIS:
-                isoclns_print(p-1, length+1, length+1); /* OSI printers need the NLPID field */
+               isoclns_print(ndo, p - 1, length + 1, length + 1); /* OSI printers need the NLPID field */
                break;
 
        case NLPID_SNAP:
index 6c77be2370ee1bcd4f6154623c120e0708677c91..35890d6819b83dea3d6ec19322b2469601247c62 100644 (file)
@@ -215,7 +215,7 @@ gre_print_0(netdissect_options *ndo, const u_char *bp, u_int length)
                atalk_print(bp, len);
                break;
        case ETHERTYPE_GRE_ISO:
-               isoclns_print(bp, len, len);
+               isoclns_print(ndo, bp, len, len);
                break;
        case ETHERTYPE_TEB:
                ether_print(ndo, bp, len, len, NULL, NULL);
index 4884e0318f4d3c4f072e521eb971896e7c06a568..bee97e5b689c99eb9146964f9ecd23a6420447ba 100644 (file)
  * complete IS-IS & CLNP support.
  */
 
+#define NETDISSECT_REWORKED
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
 #include <tcpdump-stdinc.h>
 
-#include <stdio.h>
 #include <string.h>
 
 #include "interface.h"
 #include "addrtoname.h"
-#include "ethertype.h"
 #include "ether.h"
 #include "nlpid.h"
 #include "extract.h"
@@ -560,11 +559,11 @@ struct isis_tlv_ptp_adj {
     u_int8_t neighbor_extd_local_circuit_id[4];
 };
 
-static void osi_print_cksum(const u_int8_t *pptr, u_int16_t checksum,
+static void osi_print_cksum(netdissect_options *, const u_int8_t *pptr, u_int16_t checksum,
                             u_int checksum_offset, u_int length);
-static int clnp_print(const u_int8_t *, u_int);
-static void esis_print(const u_int8_t *, u_int);
-static int isis_print(const u_int8_t *, u_int);
+static int clnp_print(netdissect_options *, const u_int8_t *, u_int);
+static void esis_print(netdissect_options *, const u_int8_t *, u_int);
+static int isis_print(netdissect_options *, const u_int8_t *, u_int);
 
 struct isis_metric_block {
     u_int8_t metric_default;
@@ -665,52 +664,49 @@ struct isis_tlv_lsp {
 #define ISIS_CSNP_HEADER_SIZE (sizeof(struct isis_csnp_header))
 #define ISIS_PSNP_HEADER_SIZE (sizeof(struct isis_psnp_header))
 
-void isoclns_print(const u_int8_t *p, u_int length, u_int caplen)
+void isoclns_print(netdissect_options *ndo,
+                   const u_int8_t *p, u_int length, u_int caplen)
 {
-        if (caplen <= 1) { /* enough bytes on the wire ? */
-            printf("|OSI");
-            return;
-        }
+       if (caplen <= 1) { /* enough bytes on the wire ? */
+               ND_PRINT((ndo, "|OSI"));
+               return;
+       }
 
-        if (eflag)
-            printf("OSI NLPID %s (0x%02x): ",
-                   tok2str(nlpid_values,"Unknown",*p),
-                   *p);
+       if (ndo->ndo_eflag)
+               ND_PRINT((ndo, "OSI NLPID %s (0x%02x): ", tok2str(nlpid_values, "Unknown", *p), *p));
 
        switch (*p) {
 
        case NLPID_CLNP:
-               if (!clnp_print(p, length))
-                        print_unknown_data(gndo,p,"\n\t",caplen);
+               if (!clnp_print(ndo, p, length))
+                       print_unknown_data(ndo, p, "\n\t", caplen);
                break;
 
        case NLPID_ESIS:
-               esis_print(p, length);
+               esis_print(ndo, p, length);
                return;
 
        case NLPID_ISIS:
-               if (!isis_print(p, length))
-                        print_unknown_data(gndo,p,"\n\t",caplen);
+               if (!isis_print(ndo, p, length))
+                       print_unknown_data(ndo, p, "\n\t", caplen);
                break;
 
        case NLPID_NULLNS:
-               (void)printf("%slength: %u",
-                            eflag ? "" : ", ",
-                             length);
+               ND_PRINT((ndo, "%slength: %u", ndo->ndo_eflag ? "" : ", ", length));
                break;
 
-        case NLPID_Q933:
-                q933_print(gndo, p+1, length-1);
-                break;
+       case NLPID_Q933:
+               q933_print(ndo, p + 1, length - 1);
+               break;
 
-        case NLPID_IP:
-               ip_print(gndo, p+1, length-1);
-                break;
+       case NLPID_IP:
+               ip_print(ndo, p + 1, length - 1);
+               break;
 
 #ifdef INET6
-        case NLPID_IP6:
-                ip6_print(gndo, p+1, length-1);
-                break;
+       case NLPID_IP6:
+               ip6_print(ndo, p + 1, length - 1);
+               break;
 #endif
 
         case NLPID_PPP:
@@ -718,13 +714,11 @@ void isoclns_print(const u_int8_t *p, u_int length, u_int caplen)
                 break;
 
        default:
-                if (!eflag)
-                    printf("OSI NLPID 0x%02x unknown",*p);
-               (void)printf("%slength: %u",
-                            eflag ? "" : ", ",
-                             length);
+               if (!ndo->ndo_eflag)
+                       ND_PRINT((ndo, "OSI NLPID 0x%02x unknown", *p));
+               ND_PRINT((ndo, "%slength: %u", ndo->ndo_eflag ? "" : ", ", length));
                if (caplen > 1)
-                        print_unknown_data(gndo,p,"\n\t",caplen);
+                       print_unknown_data(ndo, p, "\n\t", caplen);
                break;
        }
 }
@@ -765,7 +759,9 @@ struct clnp_segment_header_t {
  * Decode CLNP packets.  Return 0 on error.
  */
 
-static int clnp_print (const u_int8_t *pptr, u_int length)
+static int
+clnp_print(netdissect_options *ndo,
+           const u_int8_t *pptr, u_int length)
 {
        const u_int8_t *optr,*source_address,*dest_address;
         u_int li,tlen,nsap_offset,source_address_length,dest_address_length, clnp_pdu_type, clnp_flags;
@@ -774,20 +770,20 @@ static int clnp_print (const u_int8_t *pptr, u_int length)
         u_int8_t rfd_error_major,rfd_error_minor;
 
        clnp_header = (const struct clnp_header_t *) pptr;
-        TCHECK(*clnp_header);
+        ND_TCHECK(*clnp_header);
 
         li = clnp_header->length_indicator;
         optr = pptr;
 
-        if (!eflag)
-            printf("CLNP");
+        if (!ndo->ndo_eflag)
+            ND_PRINT((ndo, "CLNP"));
 
         /*
          * Sanity checking of the header.
          */
 
         if (clnp_header->version != CLNP_VERSION) {
-            printf("version %d packet not supported", clnp_header->version);
+            ND_PRINT((ndo, "version %d packet not supported", clnp_header->version));
             return (0);
         }
 
@@ -809,45 +805,45 @@ static int clnp_print (const u_int8_t *pptr, u_int length)
         pptr += (1 + source_address_length);
         li -= (1 + source_address_length);
 
-        if (vflag < 1) {
-            printf("%s%s > %s, %s, length %u",
-                   eflag ? "" : ", ",
+        if (ndo->ndo_vflag < 1) {
+            ND_PRINT((ndo, "%s%s > %s, %s, length %u",
+                   ndo->ndo_eflag ? "" : ", ",
                    isonsap_string(source_address, source_address_length),
                    isonsap_string(dest_address, dest_address_length),
                    tok2str(clnp_pdu_values,"unknown (%u)",clnp_pdu_type),
-                   length);
+                   length));
             return (1);
         }
-        printf("%slength %u",eflag ? "" : ", ",length);
+        ND_PRINT((ndo, "%slength %u", ndo->ndo_eflag ? "" : ", ", length));
 
-        printf("\n\t%s PDU, hlen: %u, v: %u, lifetime: %u.%us, Segment PDU length: %u, checksum: 0x%04x",
+        ND_PRINT((ndo, "\n\t%s PDU, hlen: %u, v: %u, lifetime: %u.%us, Segment PDU length: %u, checksum: 0x%04x",
                tok2str(clnp_pdu_values, "unknown (%u)",clnp_pdu_type),
                clnp_header->length_indicator,
                clnp_header->version,
                clnp_header->lifetime/2,
                (clnp_header->lifetime%2)*5,
                EXTRACT_16BITS(clnp_header->segment_length),
-               EXTRACT_16BITS(clnp_header->cksum));
+               EXTRACT_16BITS(clnp_header->cksum)));
 
-        osi_print_cksum(optr, EXTRACT_16BITS(clnp_header->cksum), 7,
+        osi_print_cksum(ndo, optr, EXTRACT_16BITS(clnp_header->cksum), 7,
                         clnp_header->length_indicator);
 
-        printf("\n\tFlags [%s]",
-               bittok2str(clnp_flag_values,"none",clnp_flags));
+        ND_PRINT((ndo, "\n\tFlags [%s]",
+               bittok2str(clnp_flag_values, "none", clnp_flags)));
 
-        printf("\n\tsource address (length %u): %s\n\tdest   address (length %u): %s",
+        ND_PRINT((ndo, "\n\tsource address (length %u): %s\n\tdest   address (length %u): %s",
                source_address_length,
                isonsap_string(source_address, source_address_length),
                dest_address_length,
-               isonsap_string(dest_address,dest_address_length));
+               isonsap_string(dest_address, dest_address_length)));
 
         if (clnp_flags & CLNP_SEGMENT_PART) {
                clnp_segment_header = (const struct clnp_segment_header_t *) pptr;
-                TCHECK(*clnp_segment_header);
-                printf("\n\tData Unit ID: 0x%04x, Segment Offset: %u, Total PDU Length: %u",
+                ND_TCHECK(*clnp_segment_header);
+                ND_PRINT((ndo, "\n\tData Unit ID: 0x%04x, Segment Offset: %u, Total PDU Length: %u",
                        EXTRACT_16BITS(clnp_segment_header->data_unit_id),
                        EXTRACT_16BITS(clnp_segment_header->segment_offset),
-                       EXTRACT_16BITS(clnp_segment_header->total_length));
+                       EXTRACT_16BITS(clnp_segment_header->total_length)));
                 pptr+=sizeof(const struct clnp_segment_header_t);
                 li-=sizeof(const struct clnp_segment_header_t);
         }
@@ -857,44 +853,44 @@ static int clnp_print (const u_int8_t *pptr, u_int length)
             u_int op, opli;
             const u_int8_t *tptr;
 
-            TCHECK2(*pptr, 2);
+            ND_TCHECK2(*pptr, 2);
             if (li < 2) {
-                printf(", bad opts/li");
+                ND_PRINT((ndo, ", bad opts/li"));
                 return (0);
             }
             op = *pptr++;
             opli = *pptr++;
             li -= 2;
-            TCHECK2(*pptr, opli);
+            ND_TCHECK2(*pptr, opli);
             if (opli > li) {
-                printf(", opt (%d) too long", op);
+                ND_PRINT((ndo, ", opt (%d) too long", op));
                 return (0);
             }
             li -= opli;
             tptr = pptr;
             tlen = opli;
 
-            printf("\n\t  %s Option #%u, length %u, value: ",
+            ND_PRINT((ndo, "\n\t  %s Option #%u, length %u, value: ",
                    tok2str(clnp_option_values,"Unknown",op),
                    op,
-                   opli);
+                   opli));
 
             switch (op) {
 
 
             case CLNP_OPTION_ROUTE_RECORDING: /* those two options share the format */
             case CLNP_OPTION_SOURCE_ROUTING:
-                    printf("%s %s",
+                    ND_PRINT((ndo, "%s %s",
                            tok2str(clnp_option_sr_rr_values,"Unknown",*tptr),
-                           tok2str(clnp_option_sr_rr_string_values,"Unknown Option %u",op));
+                           tok2str(clnp_option_sr_rr_string_values, "Unknown Option %u", op)));
                     nsap_offset=*(tptr+1);
                     if (nsap_offset == 0) {
-                            printf(" Bad NSAP offset (0)");
+                            ND_PRINT((ndo, " Bad NSAP offset (0)"));
                             break;
                     }
                     nsap_offset-=1; /* offset to nsap list */
                     if (nsap_offset > tlen) {
-                            printf(" Bad NSAP offset (past end of option)");
+                            ND_PRINT((ndo, " Bad NSAP offset (past end of option)"));
                             break;
                     }
                     tptr+=nsap_offset;
@@ -902,53 +898,53 @@ static int clnp_print (const u_int8_t *pptr, u_int length)
                     while (tlen > 0) {
                             source_address_length=*tptr;
                             if (tlen < source_address_length+1) {
-                                    printf("\n\t    NSAP address goes past end of option");
+                                    ND_PRINT((ndo, "\n\t    NSAP address goes past end of option"));
                                     break;
                             }
                             if (source_address_length > 0) {
                                     source_address=(tptr+1);
-                                    TCHECK2(*source_address, source_address_length);
-                                    printf("\n\t    NSAP address (length %u): %s",
+                                    ND_TCHECK2(*source_address, source_address_length);
+                                    ND_PRINT((ndo, "\n\t    NSAP address (length %u): %s",
                                            source_address_length,
-                                           isonsap_string(source_address, source_address_length));
+                                           isonsap_string(source_address, source_address_length)));
                             }
                             tlen-=source_address_length+1;
                     }
                     break;
 
             case CLNP_OPTION_PRIORITY:
-                    printf("0x%1x", *tptr&0x0f);
+                    ND_PRINT((ndo, "0x%1x", *tptr&0x0f));
                     break;
 
             case CLNP_OPTION_QOS_MAINTENANCE:
-                    printf("\n\t    Format Code: %s",
-                           tok2str(clnp_option_scope_values,"Reserved",*tptr&CLNP_OPTION_SCOPE_MASK));
+                    ND_PRINT((ndo, "\n\t    Format Code: %s",
+                           tok2str(clnp_option_scope_values, "Reserved", *tptr&CLNP_OPTION_SCOPE_MASK)));
 
                     if ((*tptr&CLNP_OPTION_SCOPE_MASK) == CLNP_OPTION_SCOPE_GLOBAL)
-                            printf("\n\t    QoS Flags [%s]",
+                            ND_PRINT((ndo, "\n\t    QoS Flags [%s]",
                                    bittok2str(clnp_option_qos_global_values,
                                               "none",
-                                              *tptr&CLNP_OPTION_OPTION_QOS_MASK));
+                                              *tptr&CLNP_OPTION_OPTION_QOS_MASK)));
                     break;
 
             case CLNP_OPTION_SECURITY:
-                    printf("\n\t    Format Code: %s, Security-Level %u",
+                    ND_PRINT((ndo, "\n\t    Format Code: %s, Security-Level %u",
                            tok2str(clnp_option_scope_values,"Reserved",*tptr&CLNP_OPTION_SCOPE_MASK),
-                           *(tptr+1));
+                           *(tptr+1)));
                     break;
 
             case CLNP_OPTION_DISCARD_REASON:
                 rfd_error_major = (*tptr&0xf0) >> 4;
                 rfd_error_minor = *tptr&0x0f;
-                printf("\n\t    Class: %s Error (0x%01x), %s (0x%01x)",
+                ND_PRINT((ndo, "\n\t    Class: %s Error (0x%01x), %s (0x%01x)",
                        tok2str(clnp_option_rfd_class_values,"Unknown",rfd_error_major),
                        rfd_error_major,
                        tok2str(clnp_option_rfd_error_class[rfd_error_major],"Unknown",rfd_error_minor),
-                       rfd_error_minor);
+                       rfd_error_minor));
                 break;
 
             case CLNP_OPTION_PADDING:
-                    printf("padding data");
+                    ND_PRINT((ndo, "padding data"));
                 break;
 
                 /*
@@ -957,11 +953,11 @@ static int clnp_print (const u_int8_t *pptr, u_int length)
                  */
 
             default:
-                print_unknown_data(gndo,tptr,"\n\t  ",opli);
+                print_unknown_data(ndo, tptr, "\n\t  ", opli);
                 break;
             }
-            if (vflag > 1)
-                print_unknown_data(gndo,pptr,"\n\t  ",opli);
+            if (ndo->ndo_vflag > 1)
+                print_unknown_data(ndo, pptr, "\n\t  ", opli);
             pptr += opli;
         }
 
@@ -969,11 +965,11 @@ static int clnp_print (const u_int8_t *pptr, u_int length)
 
         case    CLNP_PDU_ER: /* fall through */
         case   CLNP_PDU_ERP:
-            TCHECK(*pptr);
+            ND_TCHECK(*pptr);
             if (*(pptr) == NLPID_CLNP) {
-                printf("\n\t-----original packet-----\n\t");
+                ND_PRINT((ndo, "\n\t-----original packet-----\n\t"));
                 /* FIXME recursion protection */
-                clnp_print(pptr, length-clnp_header->length_indicator);
+                clnp_print(ndo, pptr, length - clnp_header->length_indicator);
                 break;
             }
 
@@ -984,8 +980,8 @@ static int clnp_print (const u_int8_t *pptr, u_int length)
         default:
             /* dump the PDU specific data */
             if (length-(pptr-optr) > 0) {
-                printf("\n\t  undecoded non-header data, length %u",length-clnp_header->length_indicator);
-                print_unknown_data(gndo,pptr,"\n\t  ",length-(pptr-optr));
+                ND_PRINT((ndo, "\n\t  undecoded non-header data, length %u", length-clnp_header->length_indicator));
+                print_unknown_data(ndo, pptr, "\n\t  ", length - (pptr - optr));
             }
         }
 
@@ -1020,25 +1016,23 @@ struct esis_header_t {
 };
 
 static void
-esis_print(const u_int8_t *pptr, u_int length)
+esis_print(netdissect_options *ndo,
+           const u_int8_t *pptr, u_int length)
 {
        const u_int8_t *optr;
        u_int li,esis_pdu_type,source_address_length, source_address_number;
        const struct esis_header_t *esis_header;
 
-        if (!eflag)
-            printf("ES-IS");
+       if (!ndo->ndo_eflag)
+               ND_PRINT((ndo, "ES-IS"));
 
        if (length <= 2) {
-               if (qflag)
-                       printf("bad pkt!");
-               else
-                       printf("no header at all!");
+               ND_PRINT((ndo, ndo->ndo_qflag ? "bad pkt!" : "no header at all!"));
                return;
        }
 
        esis_header = (const struct esis_header_t *) pptr;
-        TCHECK(*esis_header);
+        ND_TCHECK(*esis_header);
         li = esis_header->length_indicator;
         optr = pptr;
 
@@ -1047,51 +1041,52 @@ esis_print(const u_int8_t *pptr, u_int length)
          */
 
         if (esis_header->nlpid != NLPID_ESIS) {
-            printf(" nlpid 0x%02x packet not supported", esis_header->nlpid);
+            ND_PRINT((ndo, " nlpid 0x%02x packet not supported", esis_header->nlpid));
             return;
         }
 
         if (esis_header->version != ESIS_VERSION) {
-            printf(" version %d packet not supported", esis_header->version);
+            ND_PRINT((ndo, " version %d packet not supported", esis_header->version));
             return;
         }
 
        if (li > length) {
-            printf(" length indicator(%d) > PDU size (%d)!", li, length);
+            ND_PRINT((ndo, " length indicator(%d) > PDU size (%d)!", li, length));
             return;
        }
 
        if (li < sizeof(struct esis_header_t) + 2) {
-            printf(" length indicator < min PDU size %d:", li);
+            ND_PRINT((ndo, " length indicator < min PDU size %d:", li));
             while (--length != 0)
-                printf("%02X", *pptr++);
+                ND_PRINT((ndo, "%02X", *pptr++));
             return;
        }
 
         esis_pdu_type = esis_header->type & ESIS_PDU_TYPE_MASK;
 
-        if (vflag < 1) {
-            printf("%s%s, length %u",
-                   eflag ? "" : ", ",
+        if (ndo->ndo_vflag < 1) {
+            ND_PRINT((ndo, "%s%s, length %u",
+                   ndo->ndo_eflag ? "" : ", ",
                    tok2str(esis_pdu_values,"unknown type (%u)",esis_pdu_type),
-                   length);
+                   length));
             return;
         } else
-            printf("%slength %u\n\t%s (%u)",
-                   eflag ? "" : ", ",
+            ND_PRINT((ndo, "%slength %u\n\t%s (%u)",
+                   ndo->ndo_eflag ? "" : ", ",
                    length,
                    tok2str(esis_pdu_values,"unknown type: %u", esis_pdu_type),
-                   esis_pdu_type);
+                   esis_pdu_type));
 
-        printf(", v: %u%s", esis_header->version, esis_header->version == ESIS_VERSION ? "" : "unsupported" );
-        printf(", checksum: 0x%04x", EXTRACT_16BITS(esis_header->cksum));
+        ND_PRINT((ndo, ", v: %u%s", esis_header->version, esis_header->version == ESIS_VERSION ? "" : "unsupported" ));
+        ND_PRINT((ndo, ", checksum: 0x%04x", EXTRACT_16BITS(esis_header->cksum)));
 
-        osi_print_cksum(pptr, EXTRACT_16BITS(esis_header->cksum), 7, li);
+        osi_print_cksum(ndo, pptr, EXTRACT_16BITS(esis_header->cksum), 7, li);
 
-        printf(", holding time: %us, length indicator: %u",EXTRACT_16BITS(esis_header->holdtime),li);
+        ND_PRINT((ndo, ", holding time: %us, length indicator: %u",
+                  EXTRACT_16BITS(esis_header->holdtime), li));
 
-        if (vflag > 1)
-            print_unknown_data(gndo,optr,"\n\t",sizeof(struct esis_header_t));
+        if (ndo->ndo_vflag > 1)
+            print_unknown_data(ndo, optr, "\n\t", sizeof(struct esis_header_t));
 
        pptr += sizeof(struct esis_header_t);
        li -= sizeof(struct esis_header_t);
@@ -1101,50 +1096,50 @@ esis_print(const u_int8_t *pptr, u_int length)
                const u_int8_t *dst, *snpa, *neta;
                u_int dstl, snpal, netal;
 
-               TCHECK(*pptr);
+               ND_TCHECK(*pptr);
                if (li < 1) {
-                       printf(", bad redirect/li");
+                       ND_PRINT((ndo, ", bad redirect/li"));
                        return;
                }
                dstl = *pptr;
                pptr++;
                li--;
-               TCHECK2(*pptr, dstl);
+               ND_TCHECK2(*pptr, dstl);
                if (li < dstl) {
-                       printf(", bad redirect/li");
+                       ND_PRINT((ndo, ", bad redirect/li"));
                        return;
                }
                dst = pptr;
                pptr += dstl;
                 li -= dstl;
-               printf("\n\t  %s", isonsap_string(dst,dstl));
+               ND_PRINT((ndo, "\n\t  %s", isonsap_string(dst, dstl)));
 
-               TCHECK(*pptr);
+               ND_TCHECK(*pptr);
                if (li < 1) {
-                       printf(", bad redirect/li");
+                       ND_PRINT((ndo, ", bad redirect/li"));
                        return;
                }
                snpal = *pptr;
                pptr++;
                li--;
-               TCHECK2(*pptr, snpal);
+               ND_TCHECK2(*pptr, snpal);
                if (li < snpal) {
-                       printf(", bad redirect/li");
+                       ND_PRINT((ndo, ", bad redirect/li"));
                        return;
                }
                snpa = pptr;
                pptr += snpal;
                 li -= snpal;
-               TCHECK(*pptr);
+               ND_TCHECK(*pptr);
                if (li < 1) {
-                       printf(", bad redirect/li");
+                       ND_PRINT((ndo, ", bad redirect/li"));
                        return;
                }
                netal = *pptr;
                pptr++;
-               TCHECK2(*pptr, netal);
+               ND_TCHECK2(*pptr, netal);
                if (li < netal) {
-                       printf(", bad redirect/li");
+                       ND_PRINT((ndo, ", bad redirect/li"));
                        return;
                }
                neta = pptr;
@@ -1152,42 +1147,42 @@ esis_print(const u_int8_t *pptr, u_int length)
                 li -= netal;
 
                if (netal == 0)
-                       printf("\n\t  %s", etheraddr_string(snpa));
+                       ND_PRINT((ndo, "\n\t  %s", etheraddr_string(snpa)));
                else
-                       printf("\n\t  %s", isonsap_string(neta,netal));
+                       ND_PRINT((ndo, "\n\t  %s", isonsap_string(neta, netal)));
                break;
        }
 
        case ESIS_PDU_ESH:
-            TCHECK(*pptr);
+            ND_TCHECK(*pptr);
             if (li < 1) {
-                printf(", bad esh/li");
+                ND_PRINT((ndo, ", bad esh/li"));
                 return;
             }
             source_address_number = *pptr;
             pptr++;
             li--;
 
-            printf("\n\t  Number of Source Addresses: %u", source_address_number);
+            ND_PRINT((ndo, "\n\t  Number of Source Addresses: %u", source_address_number));
 
             while (source_address_number > 0) {
-                TCHECK(*pptr);
+                ND_TCHECK(*pptr);
                if (li < 1) {
-                    printf(", bad esh/li");
+                    ND_PRINT((ndo, ", bad esh/li"));
                    return;
                }
                 source_address_length = *pptr;
                 pptr++;
                li--;
 
-                TCHECK2(*pptr, source_address_length);
+                ND_TCHECK2(*pptr, source_address_length);
                if (li < source_address_length) {
-                    printf(", bad esh/li");
+                    ND_PRINT((ndo, ", bad esh/li"));
                    return;
                }
-                printf("\n\t  NET (length: %u): %s",
+                ND_PRINT((ndo, "\n\t  NET (length: %u): %s",
                        source_address_length,
-                       isonsap_string(pptr,source_address_length));
+                       isonsap_string(pptr, source_address_length)));
                 pptr += source_address_length;
                 li -= source_address_length;
                 source_address_number--;
@@ -1196,31 +1191,31 @@ esis_print(const u_int8_t *pptr, u_int length)
             break;
 
        case ESIS_PDU_ISH: {
-            TCHECK(*pptr);
+            ND_TCHECK(*pptr);
             if (li < 1) {
-                printf(", bad ish/li");
+                ND_PRINT((ndo, ", bad ish/li"));
                 return;
             }
             source_address_length = *pptr;
             pptr++;
             li--;
-            TCHECK2(*pptr, source_address_length);
+            ND_TCHECK2(*pptr, source_address_length);
             if (li < source_address_length) {
-                printf(", bad ish/li");
+                ND_PRINT((ndo, ", bad ish/li"));
                 return;
             }
-            printf("\n\t  NET (length: %u): %s", source_address_length, isonsap_string(pptr, source_address_length));
+            ND_PRINT((ndo, "\n\t  NET (length: %u): %s", source_address_length, isonsap_string(pptr, source_address_length)));
             pptr += source_address_length;
             li -= source_address_length;
             break;
        }
 
        default:
-            if (vflag <= 1) {
-                   if (pptr < snapend)
-                            print_unknown_data(gndo,pptr,"\n\t  ",snapend-pptr);
-            }
-            return;
+               if (ndo->ndo_vflag <= 1) {
+                       if (pptr < ndo->ndo_snapend)
+                               print_unknown_data(ndo, pptr, "\n\t  ", ndo->ndo_snapend - pptr);
+               }
+               return;
        }
 
         /* now walk the options */
@@ -1229,45 +1224,45 @@ esis_print(const u_int8_t *pptr, u_int length)
             const u_int8_t *tptr;
 
             if (li < 2) {
-                printf(", bad opts/li");
+                ND_PRINT((ndo, ", bad opts/li"));
                 return;
             }
-            TCHECK2(*pptr, 2);
+            ND_TCHECK2(*pptr, 2);
             op = *pptr++;
             opli = *pptr++;
             li -= 2;
             if (opli > li) {
-                printf(", opt (%d) too long", op);
+                ND_PRINT((ndo, ", opt (%d) too long", op));
                 return;
             }
             li -= opli;
             tptr = pptr;
 
-            printf("\n\t  %s Option #%u, length %u, value: ",
+            ND_PRINT((ndo, "\n\t  %s Option #%u, length %u, value: ",
                    tok2str(esis_option_values,"Unknown",op),
                    op,
-                   opli);
+                   opli));
 
             switch (op) {
 
             case ESIS_OPTION_ES_CONF_TIME:
                 if (opli == 2) {
-                    TCHECK2(*pptr, 2);
-                    printf("%us", EXTRACT_16BITS(tptr));
+                    ND_TCHECK2(*pptr, 2);
+                    ND_PRINT((ndo, "%us", EXTRACT_16BITS(tptr)));
                 } else
-                    printf("(bad length)");
+                    ND_PRINT((ndo, "(bad length)"));
                 break;
 
             case ESIS_OPTION_PROTOCOLS:
                 while (opli>0) {
-                    TCHECK(*pptr);
-                    printf("%s (0x%02x)",
+                    ND_TCHECK(*pptr);
+                    ND_PRINT((ndo, "%s (0x%02x)",
                            tok2str(nlpid_values,
                                    "unknown",
                                    *tptr),
-                           *tptr);
+                           *tptr));
                     if (opli>1) /* further NPLIDs ? - put comma */
-                        printf(", ");
+                        ND_PRINT((ndo, ", "));
                     tptr++;
                     opli--;
                 }
@@ -1285,43 +1280,43 @@ esis_print(const u_int8_t *pptr, u_int length)
             case ESIS_OPTION_SNPA_MASK:
 
             default:
-                print_unknown_data(gndo,tptr,"\n\t  ",opli);
+                print_unknown_data(ndo, tptr, "\n\t  ", opli);
                 break;
             }
-            if (vflag > 1)
-                print_unknown_data(gndo,pptr,"\n\t  ",opli);
+            if (ndo->ndo_vflag > 1)
+                print_unknown_data(ndo, pptr, "\n\t  ", opli);
             pptr += opli;
         }
 trunc:
        return;
 }
 
-
 static void
-isis_print_mcid (const struct isis_spb_mcid *mcid)
+isis_print_mcid(netdissect_options *ndo,
+                const struct isis_spb_mcid *mcid)
 {
   int i;
 
-  printf( "ID: %d, Name: ", mcid->format_id);
+  ND_PRINT((ndo,  "ID: %d, Name: ", mcid->format_id));
 
   for(i=0; i<32; i++)
   {
-    printf("%c", mcid->name[i]);
+    ND_PRINT((ndo, "%c", mcid->name[i]));
     if(mcid->name[i] == '\0')
         break;
   }
 
-  printf("\n\t              Lvl: %d",
-          EXTRACT_16BITS(mcid->revision_lvl));
+  ND_PRINT((ndo, "\n\t              Lvl: %d", EXTRACT_16BITS(mcid->revision_lvl)));
 
-  printf( ", Digest: ");
+  ND_PRINT((ndo,  ", Digest: "));
 
   for(i=0;i<16;i++)
-    printf("%.2x ",mcid->digest[i]);
+    ND_PRINT((ndo, "%.2x ", mcid->digest[i]));
 }
 
 static int
-isis_print_mt_port_cap_subtlv (const u_int8_t *tptr, int len)
+isis_print_mt_port_cap_subtlv(netdissect_options *ndo,
+                              const u_int8_t *tptr, int len)
 {
   int stlv_type, stlv_len;
   const struct isis_subtlv_spb_mcid *subtlv_spb_mcid;
@@ -1333,10 +1328,10 @@ isis_print_mt_port_cap_subtlv (const u_int8_t *tptr, int len)
     stlv_len  = *(tptr++);
 
     /* first lets see if we know the subTLVs name*/
-    printf("\n\t       %s subTLV #%u, length: %u",
+    ND_PRINT((ndo, "\n\t       %s subTLV #%u, length: %u",
                tok2str(isis_mt_port_cap_subtlv_values, "unknown", stlv_type),
                stlv_type,
-               stlv_len);
+               stlv_len));
 
     /*len -= TLV_TYPE_LEN_OFFSET;*/
     len = len -2;
@@ -1345,19 +1340,19 @@ isis_print_mt_port_cap_subtlv (const u_int8_t *tptr, int len)
     {
       case ISIS_SUBTLV_SPB_MCID:
       {
-        if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_MCID_MIN_LEN))
+        if (!ND_TTEST2(*(tptr), ISIS_SUBTLV_SPB_MCID_MIN_LEN))
           goto trunctlv;
 
         subtlv_spb_mcid = (struct isis_subtlv_spb_mcid *)tptr;
 
-        printf( "\n\t         MCID: ");
-        isis_print_mcid (&(subtlv_spb_mcid->mcid));
+        ND_PRINT((ndo,  "\n\t         MCID: "));
+        isis_print_mcid(ndo, &(subtlv_spb_mcid->mcid));
 
           /*tptr += SPB_MCID_MIN_LEN;
             len -= SPB_MCID_MIN_LEN; */
 
-        printf( "\n\t         AUX-MCID: ");
-        isis_print_mcid (&(subtlv_spb_mcid->aux_mcid));
+        ND_PRINT((ndo,  "\n\t         AUX-MCID: "));
+        isis_print_mcid(ndo, &(subtlv_spb_mcid->aux_mcid));
 
           /*tptr += SPB_MCID_MIN_LEN;
             len -= SPB_MCID_MIN_LEN; */
@@ -1369,22 +1364,22 @@ isis_print_mt_port_cap_subtlv (const u_int8_t *tptr, int len)
 
       case ISIS_SUBTLV_SPB_DIGEST:
       {
-        if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_DIGEST_MIN_LEN))
+        if (!ND_TTEST2(*(tptr), ISIS_SUBTLV_SPB_DIGEST_MIN_LEN))
           goto trunctlv;
 
-        printf ("\n\t        RES: %d V: %d A: %d D: %d",
+        ND_PRINT((ndo, "\n\t        RES: %d V: %d A: %d D: %d",
                         (*(tptr) >> 5), (((*tptr)>> 4) & 0x01),
-                        ((*(tptr) >> 2) & 0x03), ((*tptr) & 0x03));
+                        ((*(tptr) >> 2) & 0x03), ((*tptr) & 0x03)));
 
         tptr++;
 
-        printf( "\n\t         Digest: ");
+        ND_PRINT((ndo,  "\n\t         Digest: "));
 
         for(i=1;i<=8; i++)
         {
-            printf("%08x ", EXTRACT_32BITS(tptr));
+            ND_PRINT((ndo, "%08x ", EXTRACT_32BITS(tptr)));
             if (i%4 == 0 && i != 8)
-              printf("\n\t                 ");
+              ND_PRINT((ndo, "\n\t                 "));
             tptr = tptr + 4;
         }
 
@@ -1395,23 +1390,23 @@ isis_print_mt_port_cap_subtlv (const u_int8_t *tptr, int len)
 
       case ISIS_SUBTLV_SPB_BVID:
       {
-        if (!TTEST2(*(tptr), stlv_len))
+        if (!ND_TTEST2(*(tptr), stlv_len))
           goto trunctlv;
 
         while (len)
         {
-          if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_BVID_MIN_LEN))
+          if (!ND_TTEST2(*(tptr), ISIS_SUBTLV_SPB_BVID_MIN_LEN))
             goto trunctlv;
 
-          printf("\n\t           ECT: %08x",
-                      EXTRACT_32BITS(tptr));
+          ND_PRINT((ndo, "\n\t           ECT: %08x",
+                      EXTRACT_32BITS(tptr)));
 
           tptr = tptr+4;
 
-          printf(" BVID: %d, U:%01x M:%01x ",
+          ND_PRINT((ndo, " BVID: %d, U:%01x M:%01x ",
                      (EXTRACT_16BITS (tptr) >> 4) ,
                      (EXTRACT_16BITS (tptr) >> 3) & 0x01,
-                     (EXTRACT_16BITS (tptr) >> 2) & 0x01);
+                     (EXTRACT_16BITS (tptr) >> 2) & 0x01));
 
           tptr = tptr + 2;
           len = len - ISIS_SUBTLV_SPB_BVID_MIN_LEN;
@@ -1428,12 +1423,13 @@ isis_print_mt_port_cap_subtlv (const u_int8_t *tptr, int len)
   return 0;
 
   trunctlv:
-    printf("\n\t\t packet exceeded snapshot");
+    ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
     return(1);
 }
 
 static int
-isis_print_mt_capability_subtlv (const u_int8_t *tptr, int len)
+isis_print_mt_capability_subtlv(netdissect_options *ndo,
+                                const u_int8_t *tptr, int len)
 {
   int stlv_type, stlv_len, tmp;
 
@@ -1443,10 +1439,10 @@ isis_print_mt_capability_subtlv (const u_int8_t *tptr, int len)
     stlv_len  = *(tptr++);
 
     /* first lets see if we know the subTLVs name*/
-    printf("\n\t      %s subTLV #%u, length: %u",
+    ND_PRINT((ndo, "\n\t      %s subTLV #%u, length: %u",
                tok2str(isis_mt_capability_subtlv_values, "unknown", stlv_type),
                stlv_type,
-               stlv_len);
+               stlv_len));
 
     len = len - 2;
 
@@ -1454,25 +1450,25 @@ isis_print_mt_capability_subtlv (const u_int8_t *tptr, int len)
     {
       case ISIS_SUBTLV_SPB_INSTANCE:
 
-          if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_INSTANCE_MIN_LEN))
+          if (!ND_TTEST2(*(tptr), ISIS_SUBTLV_SPB_INSTANCE_MIN_LEN))
             goto trunctlv;
 
-          printf("\n\t        CIST Root-ID: %08x", EXTRACT_32BITS(tptr));
+          ND_PRINT((ndo, "\n\t        CIST Root-ID: %08x", EXTRACT_32BITS(tptr)));
           tptr = tptr+4;
-          printf(" %08x", EXTRACT_32BITS(tptr));
+          ND_PRINT((ndo, " %08x", EXTRACT_32BITS(tptr)));
           tptr = tptr+4;
-          printf(", Path Cost: %08x", EXTRACT_32BITS(tptr));
+          ND_PRINT((ndo, ", Path Cost: %08x", EXTRACT_32BITS(tptr)));
           tptr = tptr+4;
-          printf(", Prio: %d", EXTRACT_16BITS(tptr));
+          ND_PRINT((ndo, ", Prio: %d", EXTRACT_16BITS(tptr)));
           tptr = tptr + 2;
-          printf("\n\t        RES: %d",
-                    EXTRACT_16BITS(tptr) >> 5);
-          printf(", V: %d",
-                    (EXTRACT_16BITS(tptr) >> 4) & 0x0001);
-          printf(", SPSource-ID: %d",
-                    (EXTRACT_32BITS(tptr) & 0x000fffff));
+          ND_PRINT((ndo, "\n\t        RES: %d",
+                    EXTRACT_16BITS(tptr) >> 5));
+          ND_PRINT((ndo, ", V: %d",
+                    (EXTRACT_16BITS(tptr) >> 4) & 0x0001));
+          ND_PRINT((ndo, ", SPSource-ID: %d",
+                    (EXTRACT_32BITS(tptr) & 0x000fffff)));
           tptr = tptr+4;
-          printf(", No of Trees: %x", *(tptr));
+          ND_PRINT((ndo, ", No of Trees: %x", *(tptr)));
 
           tmp = *(tptr++);
 
@@ -1480,22 +1476,22 @@ isis_print_mt_capability_subtlv (const u_int8_t *tptr, int len)
 
           while (tmp)
           {
-            if (!TTEST2(*(tptr), ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN))
+            if (!ND_TTEST2(*(tptr), ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN))
               goto trunctlv;
 
-            printf ("\n\t         U:%d, M:%d, A:%d, RES:%d",
+            ND_PRINT((ndo, "\n\t         U:%d, M:%d, A:%d, RES:%d",
                       *(tptr) >> 7, (*(tptr) >> 6) & 0x01,
-                      (*(tptr) >> 5) & 0x01, (*(tptr) & 0x1f));
+                      (*(tptr) >> 5) & 0x01, (*(tptr) & 0x1f)));
 
             tptr++;
 
-            printf (", ECT: %08x", EXTRACT_32BITS(tptr));
+            ND_PRINT((ndo, ", ECT: %08x", EXTRACT_32BITS(tptr)));
 
             tptr = tptr + 4;
 
-            printf (", BVID: %d, SPVID: %d",
+            ND_PRINT((ndo, ", BVID: %d, SPVID: %d",
                       (EXTRACT_24BITS(tptr) >> 12) & 0x000fff,
-                      EXTRACT_24BITS(tptr) & 0x000fff);
+                      EXTRACT_24BITS(tptr) & 0x000fff));
 
             tptr = tptr + 3;
             len = len - ISIS_SUBTLV_SPB_INSTANCE_VLAN_TUPLE_LEN;
@@ -1506,16 +1502,16 @@ isis_print_mt_capability_subtlv (const u_int8_t *tptr, int len)
 
       case ISIS_SUBTLV_SPBM_SI:
 
-          if (!TTEST2(*(tptr), 6))
+          if (!ND_TTEST2(*(tptr), 6))
             goto trunctlv;
 
-          printf("\n\t        BMAC: %08x", EXTRACT_32BITS(tptr));
+          ND_PRINT((ndo, "\n\t        BMAC: %08x", EXTRACT_32BITS(tptr)));
           tptr = tptr+4;
-          printf("%04x", EXTRACT_16BITS(tptr));
+          ND_PRINT((ndo, "%04x", EXTRACT_16BITS(tptr)));
           tptr = tptr+2;
 
-          printf (", RES: %d, VID: %d", EXTRACT_16BITS(tptr) >> 12,
-                    (EXTRACT_16BITS(tptr)) & 0x0fff);
+          ND_PRINT((ndo, ", RES: %d, VID: %d", EXTRACT_16BITS(tptr) >> 12,
+                    (EXTRACT_16BITS(tptr)) & 0x0fff));
 
           tptr = tptr+2;
           len = len - 8;
@@ -1523,11 +1519,11 @@ isis_print_mt_capability_subtlv (const u_int8_t *tptr, int len)
 
           while (stlv_len)
           {
-            printf("\n\t        T: %d, R: %d, RES: %d, ISID: %d",
+            ND_PRINT((ndo, "\n\t        T: %d, R: %d, RES: %d, ISID: %d",
                     (EXTRACT_32BITS(tptr) >> 31),
                     (EXTRACT_32BITS(tptr) >> 30) & 0x01,
                     (EXTRACT_32BITS(tptr) >> 24) & 0x03f,
-                    (EXTRACT_32BITS(tptr)) & 0x0ffffff);
+                    (EXTRACT_32BITS(tptr)) & 0x0ffffff));
 
             tptr = tptr + 4;
             len = len - 4;
@@ -1543,11 +1539,10 @@ isis_print_mt_capability_subtlv (const u_int8_t *tptr, int len)
   return 0;
 
   trunctlv:
-    printf("\n\t\t packet exceeded snapshot");
+    ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
     return(1);
 }
 
-
 /* shared routine for printing system, node and lsp-ids */
 static char *
 isis_print_id(const u_int8_t *cp, int id_len)
@@ -1573,29 +1568,31 @@ isis_print_id(const u_int8_t *cp, int id_len)
 
 /* print the 4-byte metric block which is common found in the old-style TLVs */
 static int
-isis_print_metric_block (const struct isis_metric_block *isis_metric_block)
+isis_print_metric_block(netdissect_options *ndo,
+                        const struct isis_metric_block *isis_metric_block)
 {
-    printf(", Default Metric: %d, %s",
+    ND_PRINT((ndo, ", Default Metric: %d, %s",
            ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_default),
-           ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_default) ? "External" : "Internal");
+           ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_default) ? "External" : "Internal"));
     if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_delay))
-        printf("\n\t\t  Delay Metric: %d, %s",
+        ND_PRINT((ndo, "\n\t\t  Delay Metric: %d, %s",
                ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_delay),
-               ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_delay) ? "External" : "Internal");
+               ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_delay) ? "External" : "Internal"));
     if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_expense))
-        printf("\n\t\t  Expense Metric: %d, %s",
+        ND_PRINT((ndo, "\n\t\t  Expense Metric: %d, %s",
                ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_expense),
-               ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_expense) ? "External" : "Internal");
+               ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_expense) ? "External" : "Internal"));
     if (!ISIS_LSP_TLV_METRIC_SUPPORTED(isis_metric_block->metric_error))
-        printf("\n\t\t  Error Metric: %d, %s",
+        ND_PRINT((ndo, "\n\t\t  Error Metric: %d, %s",
                ISIS_LSP_TLV_METRIC_VALUE(isis_metric_block->metric_error),
-               ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_error) ? "External" : "Internal");
+               ISIS_LSP_TLV_METRIC_IE(isis_metric_block->metric_error) ? "External" : "Internal"));
 
     return(1); /* everything is ok */
 }
 
 static int
-isis_print_tlv_ip_reach (const u_int8_t *cp, const char *ident, int length)
+isis_print_tlv_ip_reach(netdissect_options *ndo,
+                        const u_int8_t *cp, const char *ident, int length)
 {
        int prefix_len;
        const struct isis_tlv_ip_reach *tlv_ip_reach;
@@ -1604,50 +1601,50 @@ isis_print_tlv_ip_reach (const u_int8_t *cp, const char *ident, int length)
 
        while (length > 0) {
                if ((size_t)length < sizeof(*tlv_ip_reach)) {
-                       printf("short IPv4 Reachability (%d vs %lu)",
+                       ND_PRINT((ndo, "short IPv4 Reachability (%d vs %lu)",
                                length,
-                               (unsigned long)sizeof(*tlv_ip_reach));
+                               (unsigned long)sizeof(*tlv_ip_reach)));
                        return (0);
                }
 
-               if (!TTEST(*tlv_ip_reach))
+               if (!ND_TTEST(*tlv_ip_reach))
                    return (0);
 
                prefix_len = mask2plen(EXTRACT_32BITS(tlv_ip_reach->mask));
 
                if (prefix_len == -1)
-                       printf("%sIPv4 prefix: %s mask %s",
+                       ND_PRINT((ndo, "%sIPv4 prefix: %s mask %s",
                                ident,
                               ipaddr_string((tlv_ip_reach->prefix)),
-                              ipaddr_string((tlv_ip_reach->mask)));
+                              ipaddr_string((tlv_ip_reach->mask))));
                else
-                       printf("%sIPv4 prefix: %15s/%u",
+                       ND_PRINT((ndo, "%sIPv4 prefix: %15s/%u",
                                ident,
                               ipaddr_string((tlv_ip_reach->prefix)),
-                              prefix_len);
+                              prefix_len));
 
-               printf(", Distribution: %s, Metric: %u, %s",
+               ND_PRINT((ndo, ", Distribution: %s, Metric: %u, %s",
                        ISIS_LSP_TLV_METRIC_UPDOWN(tlv_ip_reach->isis_metric_block.metric_default) ? "down" : "up",
                        ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_default),
-                       ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_default) ? "External" : "Internal");
+                       ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_default) ? "External" : "Internal"));
 
                if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_delay))
-                    printf("%s  Delay Metric: %u, %s",
+                    ND_PRINT((ndo, "%s  Delay Metric: %u, %s",
                            ident,
                            ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_delay),
-                           ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_delay) ? "External" : "Internal");
+                           ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_delay) ? "External" : "Internal"));
 
                if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_expense))
-                    printf("%s  Expense Metric: %u, %s",
+                    ND_PRINT((ndo, "%s  Expense Metric: %u, %s",
                            ident,
                            ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_expense),
-                           ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_expense) ? "External" : "Internal");
+                           ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_expense) ? "External" : "Internal"));
 
                if (!ISIS_LSP_TLV_METRIC_SUPPORTED(tlv_ip_reach->isis_metric_block.metric_error))
-                    printf("%s  Error Metric: %u, %s",
+                    ND_PRINT((ndo, "%s  Error Metric: %u, %s",
                            ident,
                            ISIS_LSP_TLV_METRIC_VALUE(tlv_ip_reach->isis_metric_block.metric_error),
-                           ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_error) ? "External" : "Internal");
+                           ISIS_LSP_TLV_METRIC_IE(tlv_ip_reach->isis_metric_block.metric_error) ? "External" : "Internal"));
 
                length -= sizeof(struct isis_tlv_ip_reach);
                tlv_ip_reach++;
@@ -1661,50 +1658,47 @@ isis_print_tlv_ip_reach (const u_int8_t *cp, const char *ident, int length)
  */
 
 static int
-isis_print_ip_reach_subtlv (const u_int8_t *tptr,int subt,int subl,const char *ident) {
+isis_print_ip_reach_subtlv(netdissect_options *ndo,
+                           const u_int8_t *tptr, int subt, int subl,
+                           const char *ident) {
 
         /* first lets see if we know the subTLVs name*/
-       printf("%s%s subTLV #%u, length: %u",
-              ident,
-               tok2str(isis_ext_ip_reach_subtlv_values,
-                       "unknown",
-                       subt),
-               subt,
-               subl);
+       ND_PRINT((ndo, "%s%s subTLV #%u, length: %u",
+                 ident, tok2str(isis_ext_ip_reach_subtlv_values, "unknown", subt),
+                 subt, subl));
 
-       if (!TTEST2(*tptr,subl))
+       if (!ND_TTEST2(*tptr,subl))
            goto trunctlv;
 
     switch(subt) {
     case ISIS_SUBTLV_EXTD_IP_REACH_MGMT_PREFIX_COLOR: /* fall through */
     case ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG32:
         while (subl >= 4) {
-           printf(", 0x%08x (=%u)",
+           ND_PRINT((ndo, ", 0x%08x (=%u)",
                   EXTRACT_32BITS(tptr),
-                  EXTRACT_32BITS(tptr));
+                  EXTRACT_32BITS(tptr)));
            tptr+=4;
            subl-=4;
        }
        break;
     case ISIS_SUBTLV_EXTD_IP_REACH_ADMIN_TAG64:
         while (subl >= 8) {
-           printf(", 0x%08x%08x",
+           ND_PRINT((ndo, ", 0x%08x%08x",
                   EXTRACT_32BITS(tptr),
-                  EXTRACT_32BITS(tptr+4));
+                  EXTRACT_32BITS(tptr+4)));
            tptr+=8;
            subl-=8;
        }
        break;
     default:
-       if(!print_unknown_data(gndo,tptr,"\n\t\t    ",
-                              subl))
+       if (!print_unknown_data(ndo, tptr, "\n\t\t    ", subl))
          return(0);
        break;
     }
     return(1);
 
 trunctlv:
-    printf("%spacket exceeded snapshot",ident);
+    ND_PRINT((ndo, "%spacket exceeded snapshot", ident));
     return(0);
 }
 
@@ -1714,7 +1708,9 @@ trunctlv:
  */
 
 static int
-isis_print_is_reach_subtlv (const u_int8_t *tptr,u_int subt,u_int subl,const char *ident) {
+isis_print_is_reach_subtlv(netdissect_options *ndo,
+                           const u_int8_t *tptr, u_int subt, u_int subl,
+                           const char *ident) {
 
         u_int te_class,priority_level,gmpls_switch_cap;
         union { /* int to float conversion buffer for several subTLVs */
@@ -1723,15 +1719,11 @@ isis_print_is_reach_subtlv (const u_int8_t *tptr,u_int subt,u_int subl,const cha
         } bw;
 
         /* first lets see if we know the subTLVs name*/
-       printf("%s%s subTLV #%u, length: %u",
-              ident,
-               tok2str(isis_ext_is_reach_subtlv_values,
-                       "unknown",
-                       subt),
-               subt,
-               subl);
+       ND_PRINT((ndo, "%s%s subTLV #%u, length: %u",
+                 ident, tok2str(isis_ext_is_reach_subtlv_values, "unknown", subt),
+                 subt, subl));
 
-       if (!TTEST2(*tptr,subl))
+       if (!ND_TTEST2(*tptr,subl))
            goto trunctlv;
 
         switch(subt) {
@@ -1739,97 +1731,97 @@ isis_print_is_reach_subtlv (const u_int8_t *tptr,u_int subt,u_int subl,const cha
         case ISIS_SUBTLV_EXT_IS_REACH_LINK_LOCAL_REMOTE_ID:
         case ISIS_SUBTLV_EXT_IS_REACH_LINK_REMOTE_ID:
            if (subl >= 4) {
-             printf(", 0x%08x", EXTRACT_32BITS(tptr));
+             ND_PRINT((ndo, ", 0x%08x", EXTRACT_32BITS(tptr)));
              if (subl == 8) /* rfc4205 */
-               printf(", 0x%08x", EXTRACT_32BITS(tptr+4));
+               ND_PRINT((ndo, ", 0x%08x", EXTRACT_32BITS(tptr+4)));
            }
            break;
         case ISIS_SUBTLV_EXT_IS_REACH_IPV4_INTF_ADDR:
         case ISIS_SUBTLV_EXT_IS_REACH_IPV4_NEIGHBOR_ADDR:
             if (subl >= sizeof(struct in_addr))
-              printf(", %s", ipaddr_string(tptr));
+              ND_PRINT((ndo, ", %s", ipaddr_string(tptr)));
             break;
         case ISIS_SUBTLV_EXT_IS_REACH_MAX_LINK_BW :
        case ISIS_SUBTLV_EXT_IS_REACH_RESERVABLE_BW:
             if (subl >= 4) {
               bw.i = EXTRACT_32BITS(tptr);
-              printf(", %.3f Mbps", bw.f*8/1000000 );
+              ND_PRINT((ndo, ", %.3f Mbps", bw.f * 8 / 1000000));
             }
             break;
         case ISIS_SUBTLV_EXT_IS_REACH_UNRESERVED_BW :
             if (subl >= 32) {
               for (te_class = 0; te_class < 8; te_class++) {
                 bw.i = EXTRACT_32BITS(tptr);
-                printf("%s  TE-Class %u: %.3f Mbps",
+                ND_PRINT((ndo, "%s  TE-Class %u: %.3f Mbps",
                        ident,
                        te_class,
-                       bw.f*8/1000000 );
+                       bw.f * 8 / 1000000));
                tptr+=4;
              }
             }
             break;
         case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS: /* fall through */
         case ISIS_SUBTLV_EXT_IS_REACH_BW_CONSTRAINTS_OLD:
-            printf("%sBandwidth Constraints Model ID: %s (%u)",
+            ND_PRINT((ndo, "%sBandwidth Constraints Model ID: %s (%u)",
                    ident,
                    tok2str(diffserv_te_bc_values, "unknown", *tptr),
-                   *tptr);
+                   *tptr));
             tptr++;
             /* decode BCs until the subTLV ends */
             for (te_class = 0; te_class < (subl-1)/4; te_class++) {
                 bw.i = EXTRACT_32BITS(tptr);
-                printf("%s  Bandwidth constraint CT%u: %.3f Mbps",
+                ND_PRINT((ndo, "%s  Bandwidth constraint CT%u: %.3f Mbps",
                        ident,
                        te_class,
-                       bw.f*8/1000000 );
+                       bw.f * 8 / 1000000));
                tptr+=4;
             }
             break;
         case ISIS_SUBTLV_EXT_IS_REACH_TE_METRIC:
             if (subl >= 3)
-              printf(", %u", EXTRACT_24BITS(tptr));
+              ND_PRINT((ndo, ", %u", EXTRACT_24BITS(tptr)));
             break;
         case ISIS_SUBTLV_EXT_IS_REACH_LINK_ATTRIBUTE:
             if (subl == 2) {
-               printf(", [ %s ] (0x%04x)",
+               ND_PRINT((ndo, ", [ %s ] (0x%04x)",
                       bittok2str(isis_subtlv_link_attribute_values,
                                  "Unknown",
                                  EXTRACT_16BITS(tptr)),
-                      EXTRACT_16BITS(tptr));
+                      EXTRACT_16BITS(tptr)));
             }
             break;
         case ISIS_SUBTLV_EXT_IS_REACH_LINK_PROTECTION_TYPE:
             if (subl >= 2) {
-              printf(", %s, Priority %u",
+              ND_PRINT((ndo, ", %s, Priority %u",
                   bittok2str(gmpls_link_prot_values, "none", *tptr),
-                   *(tptr+1));
+                   *(tptr+1)));
             }
             break;
         case ISIS_SUBTLV_SPB_METRIC:
             if (subl >= 6) {
-              printf (", LM: %u", EXTRACT_24BITS(tptr));
+              ND_PRINT((ndo, ", LM: %u", EXTRACT_24BITS(tptr)));
               tptr=tptr+3;
-              printf (", P: %u", *(tptr));
+              ND_PRINT((ndo, ", P: %u", *(tptr)));
               tptr++;
-              printf (", P-ID: %u", EXTRACT_16BITS(tptr));
+              ND_PRINT((ndo, ", P-ID: %u", EXTRACT_16BITS(tptr)));
             }
             break;
         case ISIS_SUBTLV_EXT_IS_REACH_INTF_SW_CAP_DESCR:
             if (subl >= 36) {
               gmpls_switch_cap = *tptr;
-              printf("%s  Interface Switching Capability:%s",
+              ND_PRINT((ndo, "%s  Interface Switching Capability:%s",
                    ident,
-                   tok2str(gmpls_switch_cap_values, "Unknown", gmpls_switch_cap));
-              printf(", LSP Encoding: %s",
-                   tok2str(gmpls_encoding_values, "Unknown", *(tptr+1)));
+                   tok2str(gmpls_switch_cap_values, "Unknown", gmpls_switch_cap)));
+              ND_PRINT((ndo, ", LSP Encoding: %s",
+                   tok2str(gmpls_encoding_values, "Unknown", *(tptr + 1))));
              tptr+=4;
-              printf("%s  Max LSP Bandwidth:",ident);
+              ND_PRINT((ndo, "%s  Max LSP Bandwidth:", ident));
               for (priority_level = 0; priority_level < 8; priority_level++) {
                 bw.i = EXTRACT_32BITS(tptr);
-                printf("%s    priority level %d: %.3f Mbps",
+                ND_PRINT((ndo, "%s    priority level %d: %.3f Mbps",
                        ident,
                        priority_level,
-                       bw.f*8/1000000 );
+                       bw.f * 8 / 1000000));
                tptr+=4;
               }
               subl-=36;
@@ -1839,36 +1831,34 @@ isis_print_is_reach_subtlv (const u_int8_t *tptr,u_int subt,u_int subl,const cha
               case GMPLS_PSC3:
               case GMPLS_PSC4:
                 bw.i = EXTRACT_32BITS(tptr);
-                printf("%s  Min LSP Bandwidth: %.3f Mbps", ident, bw.f*8/1000000);
-                printf("%s  Interface MTU: %u", ident, EXTRACT_16BITS(tptr+4));
+                ND_PRINT((ndo, "%s  Min LSP Bandwidth: %.3f Mbps", ident, bw.f * 8 / 1000000));
+                ND_PRINT((ndo, "%s  Interface MTU: %u", ident, EXTRACT_16BITS(tptr + 4)));
                 break;
               case GMPLS_TSC:
                 bw.i = EXTRACT_32BITS(tptr);
-                printf("%s  Min LSP Bandwidth: %.3f Mbps", ident, bw.f*8/1000000);
-                printf("%s  Indication %s", ident,
-                       tok2str(gmpls_switch_cap_tsc_indication_values, "Unknown (%u)", *(tptr+4)));
+                ND_PRINT((ndo, "%s  Min LSP Bandwidth: %.3f Mbps", ident, bw.f * 8 / 1000000));
+                ND_PRINT((ndo, "%s  Indication %s", ident,
+                       tok2str(gmpls_switch_cap_tsc_indication_values, "Unknown (%u)", *(tptr + 4))));
                 break;
               default:
                 /* there is some optional stuff left to decode but this is as of yet
                    not specified so just lets hexdump what is left */
                 if(subl>0){
-                  if(!print_unknown_data(gndo,tptr,"\n\t\t    ",
-                                         subl))
+                  if (!print_unknown_data(ndo, tptr, "\n\t\t    ", subl))
                     return(0);
                 }
               }
             }
             break;
         default:
-            if(!print_unknown_data(gndo,tptr,"\n\t\t    ",
-                                  subl))
+            if (!print_unknown_data(ndo, tptr, "\n\t\t    ", subl))
                 return(0);
             break;
         }
         return(1);
 
 trunctlv:
-    printf("%spacket exceeded snapshot",ident);
+    ND_PRINT((ndo, "%spacket exceeded snapshot", ident));
     return(0);
 }
 
@@ -1879,40 +1869,41 @@ trunctlv:
  */
 
 static int
-isis_print_ext_is_reach (const u_int8_t *tptr,const char *ident, int tlv_type) {
+isis_print_ext_is_reach(netdissect_options *ndo,
+                        const u_int8_t *tptr, const char *ident, int tlv_type) {
 
     char ident_buffer[20];
     int subtlv_type,subtlv_len,subtlv_sum_len;
     int proc_bytes = 0; /* how many bytes did we process ? */
 
-    if (!TTEST2(*tptr, NODE_ID_LEN))
+    if (!ND_TTEST2(*tptr, NODE_ID_LEN))
         return(0);
 
-    printf("%sIS Neighbor: %s", ident, isis_print_id(tptr, NODE_ID_LEN));
+    ND_PRINT((ndo, "%sIS Neighbor: %s", ident, isis_print_id(tptr, NODE_ID_LEN)));
     tptr+=(NODE_ID_LEN);
 
     if (tlv_type != ISIS_TLV_IS_ALIAS_ID) { /* the Alias TLV Metric field is implicit 0 */
-        if (!TTEST2(*tptr, 3))    /* and is therefore skipped */
+        if (!ND_TTEST2(*tptr, 3))    /* and is therefore skipped */
            return(0);
-       printf(", Metric: %d",EXTRACT_24BITS(tptr));
+       ND_PRINT((ndo, ", Metric: %d", EXTRACT_24BITS(tptr)));
        tptr+=3;
     }
 
-    if (!TTEST2(*tptr, 1))
+    if (!ND_TTEST2(*tptr, 1))
         return(0);
     subtlv_sum_len=*(tptr++); /* read out subTLV length */
     proc_bytes=NODE_ID_LEN+3+1;
-    printf(", %ssub-TLVs present",subtlv_sum_len ? "" : "no ");
+    ND_PRINT((ndo, ", %ssub-TLVs present",subtlv_sum_len ? "" : "no "));
     if (subtlv_sum_len) {
-        printf(" (%u)",subtlv_sum_len);
+        ND_PRINT((ndo, " (%u)", subtlv_sum_len));
         while (subtlv_sum_len>0) {
-            if (!TTEST2(*tptr,2))
+            if (!ND_TTEST2(*tptr,2))
                 return(0);
             subtlv_type=*(tptr++);
             subtlv_len=*(tptr++);
             /* prepend the ident string */
             snprintf(ident_buffer, sizeof(ident_buffer), "%s  ",ident);
-            if(!isis_print_is_reach_subtlv(tptr,subtlv_type,subtlv_len,ident_buffer))
+            if (!isis_print_is_reach_subtlv(ndo, tptr, subtlv_type, subtlv_len, ident_buffer))
                 return(0);
             tptr+=subtlv_len;
             subtlv_sum_len-=(subtlv_len+2);
@@ -1928,20 +1919,21 @@ isis_print_ext_is_reach (const u_int8_t *tptr,const char *ident, int tlv_type) {
  */
 
 static int
-isis_print_mtid (const u_int8_t *tptr,const char *ident) {
+isis_print_mtid(netdissect_options *ndo,
+                const u_int8_t *tptr, const char *ident) {
 
-    if (!TTEST2(*tptr, 2))
+    if (!ND_TTEST2(*tptr, 2))
         return(0);
 
-    printf("%s%s",
+    ND_PRINT((ndo, "%s%s",
            ident,
            tok2str(isis_mt_values,
                    "Reserved for IETF Consensus",
-                   ISIS_MASK_MTID(EXTRACT_16BITS(tptr))));
+                   ISIS_MASK_MTID(EXTRACT_16BITS(tptr)))));
 
-    printf(" Topology (0x%03x), Flags: [%s]",
+    ND_PRINT((ndo, " Topology (0x%03x), Flags: [%s]",
            ISIS_MASK_MTID(EXTRACT_16BITS(tptr)),
-           bittok2str(isis_mt_flag_values, "none",ISIS_MASK_MTFLAGS(EXTRACT_16BITS(tptr))));
+           bittok2str(isis_mt_flag_values, "none",ISIS_MASK_MTFLAGS(EXTRACT_16BITS(tptr)))));
 
     return(2);
 }
@@ -1954,7 +1946,8 @@ isis_print_mtid (const u_int8_t *tptr,const char *ident) {
  */
 
 static int
-isis_print_extd_ip_reach (const u_int8_t *tptr, const char *ident, u_int16_t afi) {
+isis_print_extd_ip_reach(netdissect_options *ndo,
+                         const u_int8_t *tptr, const char *ident, u_int16_t afi) {
 
     char ident_buffer[20];
 #ifdef INET6
@@ -1964,34 +1957,34 @@ isis_print_extd_ip_reach (const u_int8_t *tptr, const char *ident, u_int16_t afi
 #endif
     u_int metric, status_byte, bit_length, byte_length, sublen, processed, subtlvtype, subtlvlen;
 
-    if (!TTEST2(*tptr, 4))
+    if (!ND_TTEST2(*tptr, 4))
         return (0);
     metric = EXTRACT_32BITS(tptr);
     processed=4;
     tptr+=4;
 
     if (afi == AF_INET) {
-        if (!TTEST2(*tptr, 1)) /* fetch status byte */
+        if (!ND_TTEST2(*tptr, 1)) /* fetch status byte */
             return (0);
         status_byte=*(tptr++);
         bit_length = status_byte&0x3f;
         if (bit_length > 32) {
-            printf("%sIPv4 prefix: bad bit length %u",
+            ND_PRINT((ndo, "%sIPv4 prefix: bad bit length %u",
                    ident,
-                   bit_length);
+                   bit_length));
             return (0);
         }
         processed++;
 #ifdef INET6
     } else if (afi == AF_INET6) {
-        if (!TTEST2(*tptr, 1)) /* fetch status & prefix_len byte */
+        if (!ND_TTEST2(*tptr, 1)) /* fetch status & prefix_len byte */
             return (0);
         status_byte=*(tptr++);
         bit_length=*(tptr++);
         if (bit_length > 128) {
-            printf("%sIPv6 prefix: bad bit length %u",
+            ND_PRINT((ndo, "%sIPv6 prefix: bad bit length %u",
                    ident,
-                   bit_length);
+                   bit_length));
             return (0);
         }
         processed+=2;
@@ -2001,7 +1994,7 @@ isis_print_extd_ip_reach (const u_int8_t *tptr, const char *ident, u_int16_t afi
 
     byte_length = (bit_length + 7) / 8; /* prefix has variable length encoding */
 
-    if (!TTEST2(*tptr, byte_length))
+    if (!ND_TTEST2(*tptr, byte_length))
         return (0);
     memset(prefix, 0, sizeof prefix);   /* clear the copy buffer */
     memcpy(prefix,tptr,byte_length);    /* copy as much as is stored in the TLV */
@@ -2009,29 +2002,29 @@ isis_print_extd_ip_reach (const u_int8_t *tptr, const char *ident, u_int16_t afi
     processed+=byte_length;
 
     if (afi == AF_INET)
-        printf("%sIPv4 prefix: %15s/%u",
+        ND_PRINT((ndo, "%sIPv4 prefix: %15s/%u",
                ident,
                ipaddr_string(prefix),
-               bit_length);
+               bit_length));
 #ifdef INET6
     if (afi == AF_INET6)
-        printf("%sIPv6 prefix: %s/%u",
+        ND_PRINT((ndo, "%sIPv6 prefix: %s/%u",
                ident,
                ip6addr_string(prefix),
-               bit_length);
+               bit_length));
 #endif
 
-    printf(", Distribution: %s, Metric: %u",
+    ND_PRINT((ndo, ", Distribution: %s, Metric: %u",
            ISIS_MASK_TLV_EXTD_IP_UPDOWN(status_byte) ? "down" : "up",
-           metric);
+           metric));
 
     if (afi == AF_INET && ISIS_MASK_TLV_EXTD_IP_SUBTLV(status_byte))
-        printf(", sub-TLVs present");
+        ND_PRINT((ndo, ", sub-TLVs present"));
 #ifdef INET6
     if (afi == AF_INET6)
-        printf(", %s%s",
+        ND_PRINT((ndo, ", %s%s",
                ISIS_MASK_TLV_EXTD_IP6_IE(status_byte) ? "External" : "Internal",
-               ISIS_MASK_TLV_EXTD_IP6_SUBTLV(status_byte) ? ", sub-TLVs present" : "");
+               ISIS_MASK_TLV_EXTD_IP6_SUBTLV(status_byte) ? ", sub-TLVs present" : ""));
 #endif
 
     if ((afi == AF_INET  && ISIS_MASK_TLV_EXTD_IP_SUBTLV(status_byte))
@@ -2043,20 +2036,20 @@ isis_print_extd_ip_reach (const u_int8_t *tptr, const char *ident, u_int16_t afi
            than one subTLV - therefore the first byte must reflect
            the aggregate bytecount of the subTLVs for this prefix
         */
-        if (!TTEST2(*tptr, 1))
+        if (!ND_TTEST2(*tptr, 1))
             return (0);
         sublen=*(tptr++);
         processed+=sublen+1;
-        printf(" (%u)",sublen);   /* print out subTLV length */
+        ND_PRINT((ndo, " (%u)", sublen));   /* print out subTLV length */
 
         while (sublen>0) {
-            if (!TTEST2(*tptr,2))
+            if (!ND_TTEST2(*tptr,2))
                 return (0);
             subtlvtype=*(tptr++);
             subtlvlen=*(tptr++);
             /* prepend the ident string */
             snprintf(ident_buffer, sizeof(ident_buffer), "%s  ",ident);
-            if(!isis_print_ip_reach_subtlv(tptr,subtlvtype,subtlvlen,ident_buffer))
+            if (!isis_print_ip_reach_subtlv(ndo, tptr, subtlvtype, subtlvlen, ident_buffer))
                 return(0);
             tptr+=subtlvlen;
             sublen-=(subtlvlen+2);
@@ -2070,7 +2063,9 @@ isis_print_extd_ip_reach (const u_int8_t *tptr, const char *ident, u_int16_t afi
  * Decode IS-IS packets.  Return 0 on error.
  */
 
-static int isis_print (const u_int8_t *p, u_int length)
+static int
+isis_print(netdissect_options *ndo,
+           const u_int8_t *p, u_int length)
 {
     const struct isis_common_header *isis_header;
 
@@ -2097,7 +2092,7 @@ static int isis_print (const u_int8_t *p, u_int length)
                  need it for parsing the checksum TLV and authentication
                  TLV verification */
     isis_header = (const struct isis_common_header *)p;
-    TCHECK(*isis_header);
+    ND_TCHECK(*isis_header);
     pptr = p+(ISIS_COMMON_HEADER_SIZE);
     header_iih_lan = (const struct isis_iih_lan_header *)pptr;
     header_iih_ptp = (const struct isis_iih_ptp_header *)pptr;
@@ -2105,26 +2100,26 @@ static int isis_print (const u_int8_t *p, u_int length)
     header_csnp = (const struct isis_csnp_header *)pptr;
     header_psnp = (const struct isis_psnp_header *)pptr;
 
-    if (!eflag)
-        printf("IS-IS");
+    if (!ndo->ndo_eflag)
+        ND_PRINT((ndo, "IS-IS"));
 
     /*
      * Sanity checking of the header.
      */
 
     if (isis_header->version != ISIS_VERSION) {
-       printf("version %d packet not supported", isis_header->version);
+       ND_PRINT((ndo, "version %d packet not supported", isis_header->version));
        return (0);
     }
 
     if ((isis_header->id_length != SYSTEM_ID_LEN) && (isis_header->id_length != 0)) {
-       printf("system ID length of %d is not supported",
-              isis_header->id_length);
+       ND_PRINT((ndo, "system ID length of %d is not supported",
+              isis_header->id_length));
        return (0);
     }
 
     if (isis_header->pdu_version != ISIS_VERSION) {
-       printf("version %d packet not supported", isis_header->pdu_version);
+       ND_PRINT((ndo, "version %d packet not supported", isis_header->pdu_version));
        return (0);
     }
 
@@ -2134,7 +2129,7 @@ static int isis_print (const u_int8_t *p, u_int length)
        max_area = 3;    /* silly shit */
        break;
     case 255:
-       printf("bad packet -- 255 areas");
+       ND_PRINT((ndo, "bad packet -- 255 areas"));
        return (0);
     default:
        break;
@@ -2163,57 +2158,57 @@ static int isis_print (const u_int8_t *p, u_int length)
 
     /* toss any non 6-byte sys-ID len PDUs */
     if (id_length != 6 ) {
-       printf("bad packet -- illegal sys-ID length (%u)", id_length);
+       ND_PRINT((ndo, "bad packet -- illegal sys-ID length (%u)", id_length));
        return (0);
     }
 
     pdu_type=isis_header->pdu_type;
 
     /* in non-verbose mode print the basic PDU Type plus PDU specific brief information*/
-    if (vflag < 1) {
-        printf("%s%s",
-               eflag ? "" : ", ",
-               tok2str(isis_pdu_values,"unknown PDU-Type %u",pdu_type));
+    if (ndo->ndo_vflag < 1) {
+        ND_PRINT((ndo, "%s%s",
+               ndo->ndo_eflag ? "" : ", ",
+               tok2str(isis_pdu_values, "unknown PDU-Type %u", pdu_type)));
 
        switch (pdu_type) {
 
        case ISIS_PDU_L1_LAN_IIH:
        case ISIS_PDU_L2_LAN_IIH:
-           printf(", src-id %s",
-                   isis_print_id(header_iih_lan->source_id,SYSTEM_ID_LEN));
-           printf(", lan-id %s, prio %u",
+           ND_PRINT((ndo, ", src-id %s",
+                   isis_print_id(header_iih_lan->source_id, SYSTEM_ID_LEN)));
+           ND_PRINT((ndo, ", lan-id %s, prio %u",
                    isis_print_id(header_iih_lan->lan_id,NODE_ID_LEN),
-                   header_iih_lan->priority);
+                   header_iih_lan->priority));
            break;
        case ISIS_PDU_PTP_IIH:
-           printf(", src-id %s", isis_print_id(header_iih_ptp->source_id,SYSTEM_ID_LEN));
+           ND_PRINT((ndo, ", src-id %s", isis_print_id(header_iih_ptp->source_id, SYSTEM_ID_LEN)));
            break;
        case ISIS_PDU_L1_LSP:
        case ISIS_PDU_L2_LSP:
-           printf(", lsp-id %s, seq 0x%08x, lifetime %5us",
+           ND_PRINT((ndo, ", lsp-id %s, seq 0x%08x, lifetime %5us",
                   isis_print_id(header_lsp->lsp_id, LSP_ID_LEN),
                   EXTRACT_32BITS(header_lsp->sequence_number),
-                  EXTRACT_16BITS(header_lsp->remaining_lifetime));
+                  EXTRACT_16BITS(header_lsp->remaining_lifetime)));
            break;
        case ISIS_PDU_L1_CSNP:
        case ISIS_PDU_L2_CSNP:
-           printf(", src-id %s", isis_print_id(header_csnp->source_id,NODE_ID_LEN));
+           ND_PRINT((ndo, ", src-id %s", isis_print_id(header_csnp->source_id, NODE_ID_LEN)));
            break;
        case ISIS_PDU_L1_PSNP:
        case ISIS_PDU_L2_PSNP:
-           printf(", src-id %s", isis_print_id(header_psnp->source_id,NODE_ID_LEN));
+           ND_PRINT((ndo, ", src-id %s", isis_print_id(header_psnp->source_id, NODE_ID_LEN)));
            break;
 
        }
-       printf(", length %u", length);
+       ND_PRINT((ndo, ", length %u", length));
 
         return(1);
     }
 
     /* ok they seem to want to know everything - lets fully decode it */
-    printf("%slength %u", eflag ? "" : ", ",length);
+    ND_PRINT((ndo, "%slength %u", ndo->ndo_eflag ? "" : ", ", length));
 
-    printf("\n\t%s, hlen: %u, v: %u, pdu-v: %u, sys-id-len: %u (%u), max-area: %u (%u)",
+    ND_PRINT((ndo, "\n\t%s, hlen: %u, v: %u, pdu-v: %u, sys-id-len: %u (%u), max-area: %u (%u)",
            tok2str(isis_pdu_values,
                    "unknown, type %u",
                    pdu_type),
@@ -2223,10 +2218,10 @@ static int isis_print (const u_int8_t *p, u_int length)
           id_length,
           isis_header->id_length,
            max_area,
-           isis_header->max_area);
+           isis_header->max_area));
 
-    if (vflag > 1) {
-        if(!print_unknown_data(gndo,optr,"\n\t",8)) /* provide the _o_riginal pointer */
+    if (ndo->ndo_vflag > 1) {
+        if (!print_unknown_data(ndo, optr, "\n\t", 8)) /* provide the _o_riginal pointer */
             return(0);                         /* for optionally debugging the common header */
     }
 
@@ -2235,8 +2230,8 @@ static int isis_print (const u_int8_t *p, u_int length)
     case ISIS_PDU_L1_LAN_IIH:
     case ISIS_PDU_L2_LAN_IIH:
        if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE)) {
-           printf(", bogus fixed header length %u should be %lu",
-                  isis_header->fixed_len, (unsigned long)ISIS_IIH_LAN_HEADER_SIZE);
+           ND_PRINT((ndo, ", bogus fixed header length %u should be %lu",
+                  isis_header->fixed_len, (unsigned long)ISIS_IIH_LAN_HEADER_SIZE));
            return (0);
        }
 
@@ -2246,23 +2241,23 @@ static int isis_print (const u_int8_t *p, u_int length)
             length=pdu_len;
        }
 
-       TCHECK(*header_iih_lan);
-       printf("\n\t  source-id: %s,  holding time: %us, Flags: [%s]",
+       ND_TCHECK(*header_iih_lan);
+       ND_PRINT((ndo, "\n\t  source-id: %s,  holding time: %us, Flags: [%s]",
                isis_print_id(header_iih_lan->source_id,SYSTEM_ID_LEN),
                EXTRACT_16BITS(header_iih_lan->holding_time),
                tok2str(isis_iih_circuit_type_values,
                        "unknown circuit type 0x%02x",
-                       header_iih_lan->circuit_type));
+                       header_iih_lan->circuit_type)));
 
-       printf("\n\t  lan-id:    %s, Priority: %u, PDU length: %u",
+       ND_PRINT((ndo, "\n\t  lan-id:    %s, Priority: %u, PDU length: %u",
                isis_print_id(header_iih_lan->lan_id, NODE_ID_LEN),
                (header_iih_lan->priority) & ISIS_LAN_PRIORITY_MASK,
-               pdu_len);
+               pdu_len));
 
-        if (vflag > 1) {
-            if(!print_unknown_data(gndo,pptr,"\n\t  ",ISIS_IIH_LAN_HEADER_SIZE))
-                return(0);
-        }
+       if (ndo->ndo_vflag > 1) {
+               if (!print_unknown_data(ndo, pptr, "\n\t  ", ISIS_IIH_LAN_HEADER_SIZE))
+                       return(0);
+       }
 
        packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE);
        pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_LAN_HEADER_SIZE);
@@ -2270,8 +2265,8 @@ static int isis_print (const u_int8_t *p, u_int length)
 
     case ISIS_PDU_PTP_IIH:
        if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE)) {
-           printf(", bogus fixed header length %u should be %lu",
-                  isis_header->fixed_len, (unsigned long)ISIS_IIH_PTP_HEADER_SIZE);
+           ND_PRINT((ndo, ", bogus fixed header length %u should be %lu",
+                  isis_header->fixed_len, (unsigned long)ISIS_IIH_PTP_HEADER_SIZE));
            return (0);
        }
 
@@ -2281,22 +2276,22 @@ static int isis_print (const u_int8_t *p, u_int length)
             length=pdu_len;
        }
 
-       TCHECK(*header_iih_ptp);
-       printf("\n\t  source-id: %s, holding time: %us, Flags: [%s]",
+       ND_TCHECK(*header_iih_ptp);
+       ND_PRINT((ndo, "\n\t  source-id: %s, holding time: %us, Flags: [%s]",
                isis_print_id(header_iih_ptp->source_id,SYSTEM_ID_LEN),
                EXTRACT_16BITS(header_iih_ptp->holding_time),
                tok2str(isis_iih_circuit_type_values,
                        "unknown circuit type 0x%02x",
-                       header_iih_ptp->circuit_type));
+                       header_iih_ptp->circuit_type)));
 
-       printf("\n\t  circuit-id: 0x%02x, PDU length: %u",
+       ND_PRINT((ndo, "\n\t  circuit-id: 0x%02x, PDU length: %u",
                header_iih_ptp->circuit_id,
-               pdu_len);
+               pdu_len));
 
-        if (vflag > 1) {
-            if(!print_unknown_data(gndo,pptr,"\n\t  ",ISIS_IIH_PTP_HEADER_SIZE))
-                return(0);
-        }
+       if (ndo->ndo_vflag > 1) {
+               if (!print_unknown_data(ndo, pptr, "\n\t  ", ISIS_IIH_PTP_HEADER_SIZE))
+                       return(0);
+       }
 
        packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE);
        pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_IIH_PTP_HEADER_SIZE);
@@ -2305,8 +2300,8 @@ static int isis_print (const u_int8_t *p, u_int length)
     case ISIS_PDU_L1_LSP:
     case ISIS_PDU_L2_LSP:
        if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE)) {
-           printf(", bogus fixed header length %u should be %lu",
-                  isis_header->fixed_len, (unsigned long)ISIS_LSP_HEADER_SIZE);
+           ND_PRINT((ndo, ", bogus fixed header length %u should be %lu",
+                  isis_header->fixed_len, (unsigned long)ISIS_LSP_HEADER_SIZE));
            return (0);
        }
 
@@ -2316,15 +2311,15 @@ static int isis_print (const u_int8_t *p, u_int length)
             length=pdu_len;
        }
 
-       TCHECK(*header_lsp);
-       printf("\n\t  lsp-id: %s, seq: 0x%08x, lifetime: %5us\n\t  chksum: 0x%04x",
+       ND_TCHECK(*header_lsp);
+       ND_PRINT((ndo, "\n\t  lsp-id: %s, seq: 0x%08x, lifetime: %5us\n\t  chksum: 0x%04x",
                isis_print_id(header_lsp->lsp_id, LSP_ID_LEN),
                EXTRACT_32BITS(header_lsp->sequence_number),
                EXTRACT_16BITS(header_lsp->remaining_lifetime),
-               EXTRACT_16BITS(header_lsp->checksum));
+               EXTRACT_16BITS(header_lsp->checksum)));
 
 
-        osi_print_cksum((u_int8_t *)header_lsp->lsp_id,
+        osi_print_cksum(ndo, (u_int8_t *)header_lsp->lsp_id,
                         EXTRACT_16BITS(header_lsp->checksum), 12, length-12);
 
         /*
@@ -2336,24 +2331,25 @@ static int isis_print (const u_int8_t *p, u_int length)
         header_lsp->remaining_lifetime[1] = 0;
 
 
-       printf(", PDU length: %u, Flags: [ %s",
+       ND_PRINT((ndo, ", PDU length: %u, Flags: [ %s",
                pdu_len,
-               ISIS_MASK_LSP_OL_BIT(header_lsp->typeblock) ? "Overload bit set, " : "");
+               ISIS_MASK_LSP_OL_BIT(header_lsp->typeblock) ? "Overload bit set, " : ""));
 
        if (ISIS_MASK_LSP_ATT_BITS(header_lsp->typeblock)) {
-           printf("%s", ISIS_MASK_LSP_ATT_DEFAULT_BIT(header_lsp->typeblock) ? "default " : "");
-           printf("%s", ISIS_MASK_LSP_ATT_DELAY_BIT(header_lsp->typeblock) ? "delay " : "");
-           printf("%s", ISIS_MASK_LSP_ATT_EXPENSE_BIT(header_lsp->typeblock) ? "expense " : "");
-           printf("%s", ISIS_MASK_LSP_ATT_ERROR_BIT(header_lsp->typeblock) ? "error " : "");
-           printf("ATT bit set, ");
+           ND_PRINT((ndo, "%s", ISIS_MASK_LSP_ATT_DEFAULT_BIT(header_lsp->typeblock) ? "default " : ""));
+           ND_PRINT((ndo, "%s", ISIS_MASK_LSP_ATT_DELAY_BIT(header_lsp->typeblock) ? "delay " : ""));
+           ND_PRINT((ndo, "%s", ISIS_MASK_LSP_ATT_EXPENSE_BIT(header_lsp->typeblock) ? "expense " : ""));
+           ND_PRINT((ndo, "%s", ISIS_MASK_LSP_ATT_ERROR_BIT(header_lsp->typeblock) ? "error " : ""));
+           ND_PRINT((ndo, "ATT bit set, "));
        }
-       printf("%s", ISIS_MASK_LSP_PARTITION_BIT(header_lsp->typeblock) ? "P bit set, " : "");
-       printf("%s ]", tok2str(isis_lsp_istype_values,"Unknown(0x%x)",ISIS_MASK_LSP_ISTYPE_BITS(header_lsp->typeblock)));
+       ND_PRINT((ndo, "%s", ISIS_MASK_LSP_PARTITION_BIT(header_lsp->typeblock) ? "P bit set, " : ""));
+       ND_PRINT((ndo, "%s ]", tok2str(isis_lsp_istype_values, "Unknown(0x%x)",
+                 ISIS_MASK_LSP_ISTYPE_BITS(header_lsp->typeblock))));
 
-        if (vflag > 1) {
-            if(!print_unknown_data(gndo,pptr,"\n\t  ",ISIS_LSP_HEADER_SIZE))
-                return(0);
-        }
+       if (ndo->ndo_vflag > 1) {
+               if (!print_unknown_data(ndo, pptr, "\n\t  ", ISIS_LSP_HEADER_SIZE))
+                       return(0);
+       }
 
        packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE);
        pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_LSP_HEADER_SIZE);
@@ -2362,8 +2358,8 @@ static int isis_print (const u_int8_t *p, u_int length)
     case ISIS_PDU_L1_CSNP:
     case ISIS_PDU_L2_CSNP:
        if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE)) {
-           printf(", bogus fixed header length %u should be %lu",
-                  isis_header->fixed_len, (unsigned long)ISIS_CSNP_HEADER_SIZE);
+           ND_PRINT((ndo, ", bogus fixed header length %u should be %lu",
+                  isis_header->fixed_len, (unsigned long)ISIS_CSNP_HEADER_SIZE));
            return (0);
        }
 
@@ -2373,19 +2369,19 @@ static int isis_print (const u_int8_t *p, u_int length)
             length=pdu_len;
        }
 
-       TCHECK(*header_csnp);
-       printf("\n\t  source-id:    %s, PDU length: %u",
+       ND_TCHECK(*header_csnp);
+       ND_PRINT((ndo, "\n\t  source-id:    %s, PDU length: %u",
                isis_print_id(header_csnp->source_id, NODE_ID_LEN),
-               pdu_len);
-       printf("\n\t  start lsp-id: %s",
-               isis_print_id(header_csnp->start_lsp_id, LSP_ID_LEN));
-       printf("\n\t  end lsp-id:   %s",
-               isis_print_id(header_csnp->end_lsp_id, LSP_ID_LEN));
-
-        if (vflag > 1) {
-            if(!print_unknown_data(gndo,pptr,"\n\t  ",ISIS_CSNP_HEADER_SIZE))
-                return(0);
-        }
+               pdu_len));
+       ND_PRINT((ndo, "\n\t  start lsp-id: %s",
+               isis_print_id(header_csnp->start_lsp_id, LSP_ID_LEN)));
+       ND_PRINT((ndo, "\n\t  end lsp-id:   %s",
+               isis_print_id(header_csnp->end_lsp_id, LSP_ID_LEN)));
+
+       if (ndo->ndo_vflag > 1) {
+               if (!print_unknown_data(ndo, pptr, "\n\t  ", ISIS_CSNP_HEADER_SIZE))
+                       return(0);
+       }
 
        packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE);
        pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_CSNP_HEADER_SIZE);
@@ -2394,8 +2390,8 @@ static int isis_print (const u_int8_t *p, u_int length)
     case ISIS_PDU_L1_PSNP:
     case ISIS_PDU_L2_PSNP:
        if (isis_header->fixed_len != (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE)) {
-           printf("- bogus fixed header length %u should be %lu",
-                  isis_header->fixed_len, (unsigned long)ISIS_PSNP_HEADER_SIZE);
+           ND_PRINT((ndo, "- bogus fixed header length %u should be %lu",
+                  isis_header->fixed_len, (unsigned long)ISIS_PSNP_HEADER_SIZE));
            return (0);
        }
 
@@ -2405,22 +2401,22 @@ static int isis_print (const u_int8_t *p, u_int length)
             length=pdu_len;
        }
 
-       TCHECK(*header_psnp);
-       printf("\n\t  source-id:    %s, PDU length: %u",
+       ND_TCHECK(*header_psnp);
+       ND_PRINT((ndo, "\n\t  source-id:    %s, PDU length: %u",
                isis_print_id(header_psnp->source_id, NODE_ID_LEN),
-               pdu_len);
+               pdu_len));
 
-        if (vflag > 1) {
-            if(!print_unknown_data(gndo,pptr,"\n\t  ",ISIS_PSNP_HEADER_SIZE))
-                return(0);
-        }
+       if (ndo->ndo_vflag > 1) {
+               if (!print_unknown_data(ndo, pptr, "\n\t  ", ISIS_PSNP_HEADER_SIZE))
+                       return(0);
+       }
 
        packet_len -= (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE);
        pptr = p + (ISIS_COMMON_HEADER_SIZE+ISIS_PSNP_HEADER_SIZE);
        break;
 
     default:
-       if(!print_unknown_data(gndo,pptr,"\n\t  ",length))
+       if (!print_unknown_data(ndo, pptr, "\n\t  ", length))
            return(0);
        return (0);
     }
@@ -2430,13 +2426,13 @@ static int isis_print (const u_int8_t *p, u_int length)
      */
 
     while (packet_len >= 2) {
-        if (pptr == snapend) {
-           return (1);
+        if (pptr == ndo->ndo_snapend) {
+            return (1);
         }
 
-       if (!TTEST2(*pptr, 2)) {
-           printf("\n\t\t packet exceeded snapshot (%ld) bytes",
-                   (long)(pptr-snapend));
+       if (!ND_TTEST2(*pptr, 2)) {
+           ND_PRINT((ndo, "\n\t\t packet exceeded snapshot (%ld) bytes",
+                   (long)(pptr - ndo->ndo_snapend)));
            return (1);
        }
        tlv_type = *pptr++;
@@ -2449,12 +2445,12 @@ static int isis_print (const u_int8_t *p, u_int length)
        }
 
         /* first lets see if we know the TLVs name*/
-       printf("\n\t    %s TLV #%u, length: %u",
+       ND_PRINT((ndo, "\n\t    %s TLV #%u, length: %u",
                tok2str(isis_tlv_values,
                        "unknown",
                        tlv_type),
                tlv_type,
-               tlv_len);
+               tlv_len));
 
         if (tlv_len == 0) /* something is malformed */
            continue;
@@ -2462,46 +2458,46 @@ static int isis_print (const u_int8_t *p, u_int length)
         /* now check if we have a decoder otherwise do a hexdump at the end*/
        switch (tlv_type) {
        case ISIS_TLV_AREA_ADDR:
-           if (!TTEST2(*tptr, 1))
+           if (!ND_TTEST2(*tptr, 1))
                goto trunctlv;
            alen = *tptr++;
            while (tmp && alen < tmp) {
-               printf("\n\t      Area address (length: %u): %s",
+               ND_PRINT((ndo, "\n\t      Area address (length: %u): %s",
                        alen,
-                       isonsap_string(tptr,alen));
+                       isonsap_string(tptr, alen)));
                tptr += alen;
                tmp -= alen + 1;
                if (tmp==0) /* if this is the last area address do not attemt a boundary check */
                     break;
-               if (!TTEST2(*tptr, 1))
+               if (!ND_TTEST2(*tptr, 1))
                    goto trunctlv;
                alen = *tptr++;
            }
            break;
        case ISIS_TLV_ISNEIGH:
            while (tmp >= ETHER_ADDR_LEN) {
-                if (!TTEST2(*tptr, ETHER_ADDR_LEN))
+                if (!ND_TTEST2(*tptr, ETHER_ADDR_LEN))
                     goto trunctlv;
-                printf("\n\t      SNPA: %s",isis_print_id(tptr,ETHER_ADDR_LEN));
+                ND_PRINT((ndo, "\n\t      SNPA: %s", isis_print_id(tptr, ETHER_ADDR_LEN)));
                 tmp -= ETHER_ADDR_LEN;
                 tptr += ETHER_ADDR_LEN;
            }
            break;
 
         case ISIS_TLV_ISNEIGH_VARLEN:
-            if (!TTEST2(*tptr, 1) || tmp < 3) /* min. TLV length */
+            if (!ND_TTEST2(*tptr, 1) || tmp < 3) /* min. TLV length */
                goto trunctlv;
            lan_alen = *tptr++; /* LAN address length */
            if (lan_alen == 0) {
-                printf("\n\t      LAN address length 0 bytes (invalid)");
+                ND_PRINT((ndo, "\n\t      LAN address length 0 bytes (invalid)"));
                 break;
             }
             tmp --;
-            printf("\n\t      LAN address length %u bytes ",lan_alen);
+            ND_PRINT((ndo, "\n\t      LAN address length %u bytes ", lan_alen));
            while (tmp >= lan_alen) {
-                if (!TTEST2(*tptr, lan_alen))
+                if (!ND_TTEST2(*tptr, lan_alen))
                     goto trunctlv;
-                printf("\n\t\tIS Neighbor: %s",isis_print_id(tptr,lan_alen));
+                ND_PRINT((ndo, "\n\t\tIS Neighbor: %s", isis_print_id(tptr, lan_alen)));
                 tmp -= lan_alen;
                 tptr +=lan_alen;
             }
@@ -2511,13 +2507,13 @@ static int isis_print (const u_int8_t *p, u_int length)
            break;
 
         case ISIS_TLV_MT_IS_REACH:
-            mt_len = isis_print_mtid(tptr, "\n\t      ");
+            mt_len = isis_print_mtid(ndo, tptr, "\n\t      ");
             if (mt_len == 0) /* did something go wrong ? */
                 goto trunctlv;
             tptr+=mt_len;
             tmp-=mt_len;
             while (tmp >= 2+NODE_ID_LEN+3+1) {
-                ext_is_len = isis_print_ext_is_reach(tptr,"\n\t      ",tlv_type);
+                ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t      ", tlv_type);
                 if (ext_is_len == 0) /* did something go wrong ? */
                     goto trunctlv;
 
@@ -2528,7 +2524,7 @@ static int isis_print (const u_int8_t *p, u_int length)
 
         case ISIS_TLV_IS_ALIAS_ID:
            while (tmp >= NODE_ID_LEN+1) { /* is it worth attempting a decode ? */
-               ext_is_len = isis_print_ext_is_reach(tptr,"\n\t      ",tlv_type);
+               ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t      ", tlv_type);
                if (ext_is_len == 0) /* did something go wrong ? */
                    goto trunctlv;
                tmp-=ext_is_len;
@@ -2538,7 +2534,7 @@ static int isis_print (const u_int8_t *p, u_int length)
 
         case ISIS_TLV_EXT_IS_REACH:
             while (tmp >= NODE_ID_LEN+3+1) { /* is it worth attempting a decode ? */
-                ext_is_len = isis_print_ext_is_reach(tptr,"\n\t      ",tlv_type);
+                ext_is_len = isis_print_ext_is_reach(ndo, tptr, "\n\t      ", tlv_type);
                 if (ext_is_len == 0) /* did something go wrong ? */
                     goto trunctlv;
                 tmp-=ext_is_len;
@@ -2546,19 +2542,19 @@ static int isis_print (const u_int8_t *p, u_int length)
             }
             break;
         case ISIS_TLV_IS_REACH:
-           if (!TTEST2(*tptr,1))  /* check if there is one byte left to read out the virtual flag */
+           if (!ND_TTEST2(*tptr,1))  /* check if there is one byte left to read out the virtual flag */
                 goto trunctlv;
-            printf("\n\t      %s",
+            ND_PRINT((ndo, "\n\t      %s",
                    tok2str(isis_is_reach_virtual_values,
                            "bogus virtual flag 0x%02x",
-                           *tptr++));
+                           *tptr++)));
            tlv_is_reach = (const struct isis_tlv_is_reach *)tptr;
             while (tmp >= sizeof(struct isis_tlv_is_reach)) {
-               if (!TTEST(*tlv_is_reach))
+               if (!ND_TTEST(*tlv_is_reach))
                    goto trunctlv;
-               printf("\n\t      IS Neighbor: %s",
-                      isis_print_id(tlv_is_reach->neighbor_nodeid, NODE_ID_LEN));
-                isis_print_metric_block(&tlv_is_reach->isis_metric_block);
+               ND_PRINT((ndo, "\n\t      IS Neighbor: %s",
+                      isis_print_id(tlv_is_reach->neighbor_nodeid, NODE_ID_LEN)));
+               isis_print_metric_block(ndo, &tlv_is_reach->isis_metric_block);
                tmp -= sizeof(struct isis_tlv_is_reach);
                tlv_is_reach++;
            }
@@ -2567,11 +2563,11 @@ static int isis_print (const u_int8_t *p, u_int length)
         case ISIS_TLV_ESNEIGH:
            tlv_es_reach = (const struct isis_tlv_es_reach *)tptr;
             while (tmp >= sizeof(struct isis_tlv_es_reach)) {
-               if (!TTEST(*tlv_es_reach))
+               if (!ND_TTEST(*tlv_es_reach))
                    goto trunctlv;
-               printf("\n\t      ES Neighbor: %s",
-                       isis_print_id(tlv_es_reach->neighbor_sysid,SYSTEM_ID_LEN));
-                isis_print_metric_block(&tlv_es_reach->isis_metric_block);
+               ND_PRINT((ndo, "\n\t      ES Neighbor: %s",
+                       isis_print_id(tlv_es_reach->neighbor_sysid, SYSTEM_ID_LEN)));
+               isis_print_metric_block(ndo, &tlv_es_reach->isis_metric_block);
                tmp -= sizeof(struct isis_tlv_es_reach);
                tlv_es_reach++;
            }
@@ -2580,13 +2576,13 @@ static int isis_print (const u_int8_t *p, u_int length)
             /* those two TLVs share the same format */
        case ISIS_TLV_INT_IP_REACH:
        case ISIS_TLV_EXT_IP_REACH:
-           if (!isis_print_tlv_ip_reach(pptr, "\n\t      ", tlv_len))
-               return (1);
-           break;
+               if (!isis_print_tlv_ip_reach(ndo, pptr, "\n\t      ", tlv_len))
+                       return (1);
+               break;
 
        case ISIS_TLV_EXTD_IP_REACH:
            while (tmp>0) {
-                ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t      ", AF_INET);
+                ext_ip_len = isis_print_extd_ip_reach(ndo, tptr, "\n\t      ", AF_INET);
                 if (ext_ip_len == 0) /* did something go wrong ? */
                     goto trunctlv;
                 tptr+=ext_ip_len;
@@ -2595,7 +2591,7 @@ static int isis_print (const u_int8_t *p, u_int length)
            break;
 
         case ISIS_TLV_MT_IP_REACH:
-            mt_len = isis_print_mtid(tptr, "\n\t      ");
+            mt_len = isis_print_mtid(ndo, tptr, "\n\t      ");
             if (mt_len == 0) { /* did something go wrong ? */
                 goto trunctlv;
             }
@@ -2603,7 +2599,7 @@ static int isis_print (const u_int8_t *p, u_int length)
             tmp-=mt_len;
 
             while (tmp>0) {
-                ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t      ", AF_INET);
+                ext_ip_len = isis_print_extd_ip_reach(ndo, tptr, "\n\t      ", AF_INET);
                 if (ext_ip_len == 0) /* did something go wrong ? */
                     goto trunctlv;
                 tptr+=ext_ip_len;
@@ -2614,7 +2610,7 @@ static int isis_print (const u_int8_t *p, u_int length)
 #ifdef INET6
        case ISIS_TLV_IP6_REACH:
            while (tmp>0) {
-                ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t      ", AF_INET6);
+                ext_ip_len = isis_print_extd_ip_reach(ndo, tptr, "\n\t      ", AF_INET6);
                 if (ext_ip_len == 0) /* did something go wrong ? */
                     goto trunctlv;
                 tptr+=ext_ip_len;
@@ -2623,7 +2619,7 @@ static int isis_print (const u_int8_t *p, u_int length)
            break;
 
        case ISIS_TLV_MT_IP6_REACH:
-            mt_len = isis_print_mtid(tptr, "\n\t      ");
+            mt_len = isis_print_mtid(ndo, tptr, "\n\t      ");
             if (mt_len == 0) { /* did something go wrong ? */
                 goto trunctlv;
             }
@@ -2631,7 +2627,7 @@ static int isis_print (const u_int8_t *p, u_int length)
             tmp-=mt_len;
 
            while (tmp>0) {
-                ext_ip_len = isis_print_extd_ip_reach(tptr, "\n\t      ", AF_INET6);
+                ext_ip_len = isis_print_extd_ip_reach(ndo, tptr, "\n\t      ", AF_INET6);
                 if (ext_ip_len == 0) /* did something go wrong ? */
                     goto trunctlv;
                 tptr+=ext_ip_len;
@@ -2641,11 +2637,11 @@ static int isis_print (const u_int8_t *p, u_int length)
 
        case ISIS_TLV_IP6ADDR:
            while (tmp>=sizeof(struct in6_addr)) {
-               if (!TTEST2(*tptr, sizeof(struct in6_addr)))
+               if (!ND_TTEST2(*tptr, sizeof(struct in6_addr)))
                    goto trunctlv;
 
-                printf("\n\t      IPv6 interface address: %s",
-                      ip6addr_string(tptr));
+                ND_PRINT((ndo, "\n\t      IPv6 interface address: %s",
+                      ip6addr_string(tptr)));
 
                tptr += sizeof(struct in6_addr);
                tmp -= sizeof(struct in6_addr);
@@ -2653,30 +2649,30 @@ static int isis_print (const u_int8_t *p, u_int length)
            break;
 #endif
        case ISIS_TLV_AUTH:
-           if (!TTEST2(*tptr, 1))
+           if (!ND_TTEST2(*tptr, 1))
                goto trunctlv;
 
-            printf("\n\t      %s: ",
+            ND_PRINT((ndo, "\n\t      %s: ",
                    tok2str(isis_subtlv_auth_values,
                            "unknown Authentication type 0x%02x",
-                           *tptr));
+                           *tptr)));
 
            switch (*tptr) {
            case ISIS_SUBTLV_AUTH_SIMPLE:
                for(i=1;i<tlv_len;i++) {
-                   if (!TTEST2(*(tptr+i), 1))
+                   if (!ND_TTEST2(*(tptr + i), 1))
                        goto trunctlv;
-                   printf("%c",*(tptr+i));
+                   ND_PRINT((ndo, "%c", *(tptr + i)));
                }
                break;
            case ISIS_SUBTLV_AUTH_MD5:
                for(i=1;i<tlv_len;i++) {
-                   if (!TTEST2(*(tptr+i), 1))
+                   if (!ND_TTEST2(*(tptr + i), 1))
                        goto trunctlv;
-                   printf("%02x",*(tptr+i));
+                   ND_PRINT((ndo, "%02x", *(tptr + i)));
                }
                if (tlv_len != ISIS_SUBTLV_AUTH_MD5_LEN+1)
-                    printf(", (malformed subTLV) ");
+                    ND_PRINT((ndo, ", (malformed subTLV) "));
 
 #ifdef HAVE_LIBCRYPTO
                 sigcheck = signature_verify(optr, length,
@@ -2684,21 +2680,21 @@ static int isis_print (const u_int8_t *p, u_int length)
 #else
                 sigcheck = CANT_CHECK_SIGNATURE;
 #endif
-                printf(" (%s)", tok2str(signature_check_values, "Unknown", sigcheck));
+                ND_PRINT((ndo, " (%s)", tok2str(signature_check_values, "Unknown", sigcheck)));
 
                break;
             case ISIS_SUBTLV_AUTH_GENERIC:
                 key_id = EXTRACT_16BITS((tptr+1));
-                printf("%u, password: ", key_id);
+                ND_PRINT((ndo, "%u, password: ", key_id));
                 for(i=1 + sizeof(u_int16_t);i<tlv_len;i++) {
-                    if (!TTEST2(*(tptr+i), 1))
+                    if (!ND_TTEST2(*(tptr + i), 1))
                         goto trunctlv;
-                    printf("%02x",*(tptr+i));
+                    ND_PRINT((ndo, "%02x", *(tptr + i)));
                 }
                 break;
            case ISIS_SUBTLV_AUTH_PRIVATE:
            default:
-               if(!print_unknown_data(gndo,tptr+1,"\n\t\t  ",tlv_len-1))
+               if (!print_unknown_data(ndo, tptr + 1, "\n\t\t  ", tlv_len - 1))
                    return(0);
                break;
            }
@@ -2707,49 +2703,49 @@ static int isis_print (const u_int8_t *p, u_int length)
        case ISIS_TLV_PTP_ADJ:
            tlv_ptp_adj = (const struct isis_tlv_ptp_adj *)tptr;
            if(tmp>=1) {
-               if (!TTEST2(*tptr, 1))
+               if (!ND_TTEST2(*tptr, 1))
                    goto trunctlv;
-               printf("\n\t      Adjacency State: %s (%u)",
+               ND_PRINT((ndo, "\n\t      Adjacency State: %s (%u)",
                       tok2str(isis_ptp_adjancey_values, "unknown", *tptr),
-                        *tptr);
+                        *tptr));
                tmp--;
            }
            if(tmp>sizeof(tlv_ptp_adj->extd_local_circuit_id)) {
-               if (!TTEST2(tlv_ptp_adj->extd_local_circuit_id,
+               if (!ND_TTEST2(tlv_ptp_adj->extd_local_circuit_id,
                             sizeof(tlv_ptp_adj->extd_local_circuit_id)))
                    goto trunctlv;
-               printf("\n\t      Extended Local circuit-ID: 0x%08x",
-                      EXTRACT_32BITS(tlv_ptp_adj->extd_local_circuit_id));
+               ND_PRINT((ndo, "\n\t      Extended Local circuit-ID: 0x%08x",
+                      EXTRACT_32BITS(tlv_ptp_adj->extd_local_circuit_id)));
                tmp-=sizeof(tlv_ptp_adj->extd_local_circuit_id);
            }
            if(tmp>=SYSTEM_ID_LEN) {
-               if (!TTEST2(tlv_ptp_adj->neighbor_sysid, SYSTEM_ID_LEN))
+               if (!ND_TTEST2(tlv_ptp_adj->neighbor_sysid, SYSTEM_ID_LEN))
                    goto trunctlv;
-               printf("\n\t      Neighbor System-ID: %s",
-                      isis_print_id(tlv_ptp_adj->neighbor_sysid,SYSTEM_ID_LEN));
+               ND_PRINT((ndo, "\n\t      Neighbor System-ID: %s",
+                      isis_print_id(tlv_ptp_adj->neighbor_sysid, SYSTEM_ID_LEN)));
                tmp-=SYSTEM_ID_LEN;
            }
            if(tmp>=sizeof(tlv_ptp_adj->neighbor_extd_local_circuit_id)) {
-               if (!TTEST2(tlv_ptp_adj->neighbor_extd_local_circuit_id,
+               if (!ND_TTEST2(tlv_ptp_adj->neighbor_extd_local_circuit_id,
                             sizeof(tlv_ptp_adj->neighbor_extd_local_circuit_id)))
                    goto trunctlv;
-               printf("\n\t      Neighbor Extended Local circuit-ID: 0x%08x",
-                      EXTRACT_32BITS(tlv_ptp_adj->neighbor_extd_local_circuit_id));
+               ND_PRINT((ndo, "\n\t      Neighbor Extended Local circuit-ID: 0x%08x",
+                      EXTRACT_32BITS(tlv_ptp_adj->neighbor_extd_local_circuit_id)));
            }
            break;
 
        case ISIS_TLV_PROTOCOLS:
-           printf("\n\t      NLPID(s): ");
+           ND_PRINT((ndo, "\n\t      NLPID(s): "));
            while (tmp>0) {
-               if (!TTEST2(*(tptr), 1))
+               if (!ND_TTEST2(*(tptr), 1))
                    goto trunctlv;
-               printf("%s (0x%02x)",
+               ND_PRINT((ndo, "%s (0x%02x)",
                        tok2str(nlpid_values,
                                "unknown",
                                *tptr),
-                       *tptr);
+                       *tptr));
                if (tmp>1) /* further NPLIDs ? - put comma */
-                   printf(", ");
+                   ND_PRINT((ndo, ", "));
                 tptr++;
                 tmp--;
            }
@@ -2757,62 +2753,62 @@ static int isis_print (const u_int8_t *p, u_int length)
 
     case ISIS_TLV_MT_PORT_CAP:
     {
-      if (!TTEST2(*(tptr), 2))
+      if (!ND_TTEST2(*(tptr), 2))
         goto trunctlv;
 
-      printf("\n\t       RES: %d, MTID(s): %d",
+      ND_PRINT((ndo, "\n\t       RES: %d, MTID(s): %d",
               (EXTRACT_16BITS (tptr) >> 12),
-              (EXTRACT_16BITS (tptr) & 0x0fff));
+              (EXTRACT_16BITS (tptr) & 0x0fff)));
 
       tmp = tmp-2;
       tptr = tptr+2;
 
       if (tmp)
-        isis_print_mt_port_cap_subtlv (tptr, tmp);
+        isis_print_mt_port_cap_subtlv(ndo, tptr, tmp);
 
       break;
     }
 
     case ISIS_TLV_MT_CAPABILITY:
 
-      if (!TTEST2(*(tptr), 2))
+      if (!ND_TTEST2(*(tptr), 2))
         goto trunctlv;
 
-      printf("\n\t      O: %d, RES: %d, MTID(s): %d",
+      ND_PRINT((ndo, "\n\t      O: %d, RES: %d, MTID(s): %d",
                 (EXTRACT_16BITS(tptr) >> 15) & 0x01,
                 (EXTRACT_16BITS(tptr) >> 12) & 0x07,
-                EXTRACT_16BITS(tptr) & 0x0fff);
+                EXTRACT_16BITS(tptr) & 0x0fff));
 
       tmp = tmp-2;
       tptr = tptr+2;
 
       if (tmp)
-        isis_print_mt_capability_subtlv (tptr, tmp);
+        isis_print_mt_capability_subtlv(ndo, tptr, tmp);
 
       break;
 
        case ISIS_TLV_TE_ROUTER_ID:
-           if (!TTEST2(*pptr, sizeof(struct in_addr)))
+           if (!ND_TTEST2(*pptr, sizeof(struct in_addr)))
                goto trunctlv;
-           printf("\n\t      Traffic Engineering Router ID: %s", ipaddr_string(pptr));
+           ND_PRINT((ndo, "\n\t      Traffic Engineering Router ID: %s", ipaddr_string(pptr)));
            break;
 
        case ISIS_TLV_IPADDR:
            while (tmp>=sizeof(struct in_addr)) {
-               if (!TTEST2(*tptr, sizeof(struct in_addr)))
+               if (!ND_TTEST2(*tptr, sizeof(struct in_addr)))
                    goto trunctlv;
-               printf("\n\t      IPv4 interface address: %s", ipaddr_string(tptr));
+               ND_PRINT((ndo, "\n\t      IPv4 interface address: %s", ipaddr_string(tptr)));
                tptr += sizeof(struct in_addr);
                tmp -= sizeof(struct in_addr);
            }
            break;
 
        case ISIS_TLV_HOSTNAME:
-           printf("\n\t      Hostname: ");
+           ND_PRINT((ndo, "\n\t      Hostname: "));
            while (tmp>0) {
-               if (!TTEST2(*tptr, 1))
+               if (!ND_TTEST2(*tptr, 1))
                    goto trunctlv;
-               printf("%c",*tptr++);
+               ND_PRINT((ndo, "%c", *tptr++));
                 tmp--;
            }
            break;
@@ -2820,39 +2816,39 @@ static int isis_print (const u_int8_t *p, u_int length)
        case ISIS_TLV_SHARED_RISK_GROUP:
            if (tmp < NODE_ID_LEN)
                break;
-           if (!TTEST2(*tptr, NODE_ID_LEN))
+           if (!ND_TTEST2(*tptr, NODE_ID_LEN))
                 goto trunctlv;
-           printf("\n\t      IS Neighbor: %s", isis_print_id(tptr, NODE_ID_LEN));
+           ND_PRINT((ndo, "\n\t      IS Neighbor: %s", isis_print_id(tptr, NODE_ID_LEN)));
            tptr+=(NODE_ID_LEN);
            tmp-=(NODE_ID_LEN);
 
            if (tmp < 1)
                break;
-           if (!TTEST2(*tptr, 1))
+           if (!ND_TTEST2(*tptr, 1))
                 goto trunctlv;
-           printf(", Flags: [%s]", ISIS_MASK_TLV_SHARED_RISK_GROUP(*tptr++) ? "numbered" : "unnumbered");
+           ND_PRINT((ndo, ", Flags: [%s]", ISIS_MASK_TLV_SHARED_RISK_GROUP(*tptr++) ? "numbered" : "unnumbered"));
            tmp--;
 
            if (tmp < sizeof(struct in_addr))
                break;
-           if (!TTEST2(*tptr,sizeof(struct in_addr)))
+           if (!ND_TTEST2(*tptr, sizeof(struct in_addr)))
                 goto trunctlv;
-           printf("\n\t      IPv4 interface address: %s", ipaddr_string(tptr));
+           ND_PRINT((ndo, "\n\t      IPv4 interface address: %s", ipaddr_string(tptr)));
            tptr+=sizeof(struct in_addr);
            tmp-=sizeof(struct in_addr);
 
            if (tmp < sizeof(struct in_addr))
                break;
-           if (!TTEST2(*tptr,sizeof(struct in_addr)))
+           if (!ND_TTEST2(*tptr, sizeof(struct in_addr)))
                 goto trunctlv;
-           printf("\n\t      IPv4 neighbor address: %s", ipaddr_string(tptr));
+           ND_PRINT((ndo, "\n\t      IPv4 neighbor address: %s", ipaddr_string(tptr)));
            tptr+=sizeof(struct in_addr);
            tmp-=sizeof(struct in_addr);
 
            while (tmp>=4) {
-                if (!TTEST2(*tptr, 4))
+                if (!ND_TTEST2(*tptr, 4))
                     goto trunctlv;
-                printf("\n\t      Link-ID: 0x%08x", EXTRACT_32BITS(tptr));
+                ND_PRINT((ndo, "\n\t      Link-ID: 0x%08x", EXTRACT_32BITS(tptr)));
                 tptr+=4;
                 tmp-=4;
            }
@@ -2861,19 +2857,19 @@ static int isis_print (const u_int8_t *p, u_int length)
        case ISIS_TLV_LSP:
            tlv_lsp = (const struct isis_tlv_lsp *)tptr;
            while(tmp>=sizeof(struct isis_tlv_lsp)) {
-               if (!TTEST((tlv_lsp->lsp_id)[LSP_ID_LEN-1]))
+               if (!ND_TTEST((tlv_lsp->lsp_id)[LSP_ID_LEN-1]))
                    goto trunctlv;
-               printf("\n\t      lsp-id: %s",
-                       isis_print_id(tlv_lsp->lsp_id, LSP_ID_LEN));
-               if (!TTEST2(tlv_lsp->sequence_number, 4))
+               ND_PRINT((ndo, "\n\t      lsp-id: %s",
+                       isis_print_id(tlv_lsp->lsp_id, LSP_ID_LEN)));
+               if (!ND_TTEST2(tlv_lsp->sequence_number, 4))
                    goto trunctlv;
-               printf(", seq: 0x%08x",EXTRACT_32BITS(tlv_lsp->sequence_number));
-               if (!TTEST2(tlv_lsp->remaining_lifetime, 2))
+               ND_PRINT((ndo, ", seq: 0x%08x", EXTRACT_32BITS(tlv_lsp->sequence_number)));
+               if (!ND_TTEST2(tlv_lsp->remaining_lifetime, 2))
                    goto trunctlv;
-               printf(", lifetime: %5ds",EXTRACT_16BITS(tlv_lsp->remaining_lifetime));
-               if (!TTEST2(tlv_lsp->checksum, 2))
+               ND_PRINT((ndo, ", lifetime: %5ds", EXTRACT_16BITS(tlv_lsp->remaining_lifetime)));
+               if (!ND_TTEST2(tlv_lsp->checksum, 2))
                    goto trunctlv;
-               printf(", chksum: 0x%04x",EXTRACT_16BITS(tlv_lsp->checksum));
+               ND_PRINT((ndo, ", chksum: 0x%04x", EXTRACT_16BITS(tlv_lsp->checksum)));
                tmp-=sizeof(struct isis_tlv_lsp);
                tlv_lsp++;
            }
@@ -2882,15 +2878,15 @@ static int isis_print (const u_int8_t *p, u_int length)
        case ISIS_TLV_CHECKSUM:
            if (tmp < ISIS_TLV_CHECKSUM_MINLEN)
                break;
-           if (!TTEST2(*tptr, ISIS_TLV_CHECKSUM_MINLEN))
+           if (!ND_TTEST2(*tptr, ISIS_TLV_CHECKSUM_MINLEN))
                goto trunctlv;
-           printf("\n\t      checksum: 0x%04x ", EXTRACT_16BITS(tptr));
+           ND_PRINT((ndo, "\n\t      checksum: 0x%04x ", EXTRACT_16BITS(tptr)));
             /* do not attempt to verify the checksum if it is zero
              * most likely a HMAC-MD5 TLV is also present and
              * to avoid conflicts the checksum TLV is zeroed.
              * see rfc3358 for details
              */
-            osi_print_cksum(optr, EXTRACT_16BITS(tptr), tptr-optr, length);
+            osi_print_cksum(ndo, optr, EXTRACT_16BITS(tptr), tptr-optr, length);
            break;
 
        case ISIS_TLV_MT_SUPPORTED:
@@ -2900,13 +2896,13 @@ static int isis_print (const u_int8_t *p, u_int length)
                /* length can only be a multiple of 2, otherwise there is
                   something broken -> so decode down until length is 1 */
                if (tmp!=1) {
-                    mt_len = isis_print_mtid(tptr, "\n\t      ");
+                    mt_len = isis_print_mtid(ndo, tptr, "\n\t      ");
                     if (mt_len == 0) /* did something go wrong ? */
                         goto trunctlv;
                     tptr+=mt_len;
                     tmp-=mt_len;
                } else {
-                   printf("\n\t      malformed MT-ID");
+                   ND_PRINT((ndo, "\n\t      malformed MT-ID"));
                    break;
                }
            }
@@ -2916,10 +2912,10 @@ static int isis_print (const u_int8_t *p, u_int length)
             /* first attempt to decode the flags */
             if (tmp < ISIS_TLV_RESTART_SIGNALING_FLAGLEN)
                 break;
-            if (!TTEST2(*tptr, ISIS_TLV_RESTART_SIGNALING_FLAGLEN))
+            if (!ND_TTEST2(*tptr, ISIS_TLV_RESTART_SIGNALING_FLAGLEN))
                 goto trunctlv;
-            printf("\n\t      Flags [%s]",
-                   bittok2str(isis_restart_flag_values, "none", *tptr));
+            ND_PRINT((ndo, "\n\t      Flags [%s]",
+                   bittok2str(isis_restart_flag_values, "none", *tptr)));
             tptr+=ISIS_TLV_RESTART_SIGNALING_FLAGLEN;
             tmp-=ISIS_TLV_RESTART_SIGNALING_FLAGLEN;
 
@@ -2929,40 +2925,40 @@ static int isis_print (const u_int8_t *p, u_int length)
 
             if (tmp < ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN)
                 break;
-            if (!TTEST2(*tptr, ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN))
+            if (!ND_TTEST2(*tptr, ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN))
                 goto trunctlv;
 
-            printf(", Remaining holding time %us", EXTRACT_16BITS(tptr));
+            ND_PRINT((ndo, ", Remaining holding time %us", EXTRACT_16BITS(tptr)));
             tptr+=ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN;
             tmp-=ISIS_TLV_RESTART_SIGNALING_HOLDTIMELEN;
 
             /* is there an additional sysid field present ?*/
             if (tmp == SYSTEM_ID_LEN) {
-                    if (!TTEST2(*tptr, SYSTEM_ID_LEN))
+                    if (!ND_TTEST2(*tptr, SYSTEM_ID_LEN))
                             goto trunctlv;
-                    printf(", for %s",isis_print_id(tptr,SYSTEM_ID_LEN));
+                    ND_PRINT((ndo, ", for %s", isis_print_id(tptr,SYSTEM_ID_LEN)));
             }
            break;
 
         case ISIS_TLV_IDRP_INFO:
            if (tmp < ISIS_TLV_IDRP_INFO_MINLEN)
                break;
-            if (!TTEST2(*tptr, ISIS_TLV_IDRP_INFO_MINLEN))
+            if (!ND_TTEST2(*tptr, ISIS_TLV_IDRP_INFO_MINLEN))
                 goto trunctlv;
-            printf("\n\t      Inter-Domain Information Type: %s",
+            ND_PRINT((ndo, "\n\t      Inter-Domain Information Type: %s",
                    tok2str(isis_subtlv_idrp_values,
                            "Unknown (0x%02x)",
-                           *tptr));
+                           *tptr)));
             switch (*tptr++) {
             case ISIS_SUBTLV_IDRP_ASN:
-                if (!TTEST2(*tptr, 2)) /* fetch AS number */
+                if (!ND_TTEST2(*tptr, 2)) /* fetch AS number */
                     goto trunctlv;
-                printf("AS Number: %u",EXTRACT_16BITS(tptr));
+                ND_PRINT((ndo, "AS Number: %u", EXTRACT_16BITS(tptr)));
                 break;
             case ISIS_SUBTLV_IDRP_LOCAL:
             case ISIS_SUBTLV_IDRP_RES:
             default:
-                if(!print_unknown_data(gndo,tptr,"\n\t      ",tlv_len-1))
+                if (!print_unknown_data(ndo, tptr, "\n\t      ", tlv_len - 1))
                     return(0);
                 break;
             }
@@ -2971,16 +2967,16 @@ static int isis_print (const u_int8_t *p, u_int length)
         case ISIS_TLV_LSP_BUFFERSIZE:
            if (tmp < ISIS_TLV_LSP_BUFFERSIZE_MINLEN)
                break;
-            if (!TTEST2(*tptr, ISIS_TLV_LSP_BUFFERSIZE_MINLEN))
+            if (!ND_TTEST2(*tptr, ISIS_TLV_LSP_BUFFERSIZE_MINLEN))
                 goto trunctlv;
-            printf("\n\t      LSP Buffersize: %u",EXTRACT_16BITS(tptr));
+            ND_PRINT((ndo, "\n\t      LSP Buffersize: %u", EXTRACT_16BITS(tptr)));
             break;
 
         case ISIS_TLV_PART_DIS:
             while (tmp >= SYSTEM_ID_LEN) {
-                if (!TTEST2(*tptr, SYSTEM_ID_LEN))
+                if (!ND_TTEST2(*tptr, SYSTEM_ID_LEN))
                     goto trunctlv;
-                printf("\n\t      %s",isis_print_id(tptr,SYSTEM_ID_LEN));
+                ND_PRINT((ndo, "\n\t      %s", isis_print_id(tptr, SYSTEM_ID_LEN)));
                 tptr+=SYSTEM_ID_LEN;
                 tmp-=SYSTEM_ID_LEN;
             }
@@ -2989,29 +2985,28 @@ static int isis_print (const u_int8_t *p, u_int length)
         case ISIS_TLV_PREFIX_NEIGH:
            if (tmp < sizeof(struct isis_metric_block))
                break;
-            if (!TTEST2(*tptr, sizeof(struct isis_metric_block)))
+            if (!ND_TTEST2(*tptr, sizeof(struct isis_metric_block)))
                 goto trunctlv;
-            printf("\n\t      Metric Block");
-            isis_print_metric_block((const struct isis_metric_block *)tptr);
+            ND_PRINT((ndo, "\n\t      Metric Block"));
+            isis_print_metric_block(ndo, (const struct isis_metric_block *)tptr);
             tptr+=sizeof(struct isis_metric_block);
             tmp-=sizeof(struct isis_metric_block);
 
             while(tmp>0) {
-                if (!TTEST2(*tptr, 1))
+                if (!ND_TTEST2(*tptr, 1))
                     goto trunctlv;
                 prefix_len=*tptr++; /* read out prefix length in semioctets*/
                 if (prefix_len < 2) {
-                    printf("\n\t\tAddress: prefix length %u < 2", prefix_len);
+                    ND_PRINT((ndo, "\n\t\tAddress: prefix length %u < 2", prefix_len));
                     break;
                 }
                 tmp--;
                 if (tmp < prefix_len/2)
                     break;
-                if (!TTEST2(*tptr, prefix_len/2))
+                if (!ND_TTEST2(*tptr, prefix_len / 2))
                     goto trunctlv;
-                printf("\n\t\tAddress: %s/%u",
-                       isonsap_string(tptr,prefix_len/2),
-                       prefix_len*4);
+                ND_PRINT((ndo, "\n\t\tAddress: %s/%u",
+                       isonsap_string(tptr, prefix_len / 2), prefix_len * 4));
                 tptr+=prefix_len/2;
                 tmp-=prefix_len/2;
             }
@@ -3020,24 +3015,24 @@ static int isis_print (const u_int8_t *p, u_int length)
         case ISIS_TLV_IIH_SEQNR:
            if (tmp < ISIS_TLV_IIH_SEQNR_MINLEN)
                break;
-            if (!TTEST2(*tptr, ISIS_TLV_IIH_SEQNR_MINLEN)) /* check if four bytes are on the wire */
+            if (!ND_TTEST2(*tptr, ISIS_TLV_IIH_SEQNR_MINLEN)) /* check if four bytes are on the wire */
                 goto trunctlv;
-            printf("\n\t      Sequence number: %u", EXTRACT_32BITS(tptr) );
+            ND_PRINT((ndo, "\n\t      Sequence number: %u", EXTRACT_32BITS(tptr)));
             break;
 
         case ISIS_TLV_VENDOR_PRIVATE:
            if (tmp < ISIS_TLV_VENDOR_PRIVATE_MINLEN)
                break;
-            if (!TTEST2(*tptr, ISIS_TLV_VENDOR_PRIVATE_MINLEN)) /* check if enough byte for a full oui */
+            if (!ND_TTEST2(*tptr, ISIS_TLV_VENDOR_PRIVATE_MINLEN)) /* check if enough byte for a full oui */
                 goto trunctlv;
             vendor_id = EXTRACT_24BITS(tptr);
-            printf("\n\t      Vendor: %s (%u)",
-                   tok2str(oui_values,"Unknown",vendor_id),
-                   vendor_id);
+            ND_PRINT((ndo, "\n\t      Vendor: %s (%u)",
+                   tok2str(oui_values, "Unknown", vendor_id),
+                   vendor_id));
             tptr+=3;
             tmp-=3;
             if (tmp > 0) /* hexdump the rest */
-                if(!print_unknown_data(gndo,tptr,"\n\t\t",tmp))
+                if (!print_unknown_data(ndo, tptr, "\n\t\t", tmp))
                     return(0);
             break;
             /*
@@ -3052,24 +3047,24 @@ static int isis_print (const u_int8_t *p, u_int length)
         case ISIS_TLV_NORTEL_PRIVATE2:
 
        default:
-            if (vflag <= 1) {
-                if(!print_unknown_data(gndo,pptr,"\n\t\t",tlv_len))
-                    return(0);
-            }
-           break;
+               if (ndo->ndo_vflag <= 1) {
+                       if (!print_unknown_data(ndo, pptr, "\n\t\t", tlv_len))
+                               return(0);
+               }
+               break;
        }
         /* do we want to see an additionally hexdump ? */
-        if (vflag> 1) {
-           if(!print_unknown_data(gndo,pptr,"\n\t      ",tlv_len))
-               return(0);
-        }
+       if (ndo->ndo_vflag> 1) {
+               if (!print_unknown_data(ndo, pptr, "\n\t      ", tlv_len))
+                       return(0);
+       }
 
        pptr += tlv_len;
        packet_len -= tlv_len;
     }
 
     if (packet_len != 0) {
-       printf("\n\t      %u straggler bytes", packet_len);
+       ND_PRINT((ndo, "\n\t      %u straggler bytes", packet_len));
     }
     return (1);
 
@@ -3078,25 +3073,26 @@ static int isis_print (const u_int8_t *p, u_int length)
     return (1);
 
  trunctlv:
-    printf("\n\t\t packet exceeded snapshot");
+    ND_PRINT((ndo, "\n\t\t packet exceeded snapshot"));
     return(1);
 }
 
 static void
-osi_print_cksum (const u_int8_t *pptr, u_int16_t checksum,
+osi_print_cksum(netdissect_options *ndo,
+                const u_int8_t *pptr, u_int16_t checksum,
                     u_int checksum_offset, u_int length)
 {
         u_int16_t calculated_checksum;
 
         /* do not attempt to verify the checksum if it is zero */
         if (!checksum) {
-                printf("(unverified)");
+                ND_PRINT((ndo, "(unverified)"));
         } else {
                 calculated_checksum = create_osi_cksum(pptr, checksum_offset, length);
                 if (checksum == calculated_checksum) {
-                        printf(" (correct)");
+                        ND_PRINT((ndo, " (correct)"));
                 } else {
-                        printf(" (incorrect should be 0x%04x)", calculated_checksum);
+                        ND_PRINT((ndo, " (incorrect should be 0x%04x)", calculated_checksum));
                 }
         }
 }
index e20b37c673a3a4a4516096767f58064a4ea7809d..7774c1ad49a65ee2b4a74434e449f874a177a68e 100644 (file)
@@ -784,7 +784,7 @@ juniper_mlppp_print(const struct pcap_pkthdr *h, register const u_char *p)
             mpls_print(gndo, p, l2info.length);
             return l2info.header_len;
         case JUNIPER_LSQ_L3_PROTO_ISO:
-            isoclns_print(p,l2info.length,l2info.caplen);
+            isoclns_print(gndo, p, l2info.length, l2info.caplen);
             return l2info.header_len;
         default:
             break;
@@ -839,7 +839,7 @@ juniper_mfr_print(const struct pcap_pkthdr *h, register const u_char *p)
                 mpls_print(gndo, p, l2info.length);
                 return l2info.header_len;
             case JUNIPER_LSQ_L3_PROTO_ISO:
-                isoclns_print(p,l2info.length,l2info.caplen);
+                isoclns_print(gndo, p, l2info.length, l2info.caplen);
                 return l2info.header_len;
             default:
                 break;
@@ -851,13 +851,13 @@ juniper_mfr_print(const struct pcap_pkthdr *h, register const u_char *p)
         if (eflag && EXTRACT_32BITS(l2info.cookie) != 1) printf("Bundle-ID %u, ",l2info.bundle);
         switch (l2info.proto) {
         case (LLCSAP_ISONS<<8 | LLCSAP_ISONS):
-            isoclns_print(p+1, l2info.length-1, l2info.caplen-1);
+            isoclns_print(gndo, p + 1, l2info.length - 1, l2info.caplen - 1);
             break;
         case (LLC_UI<<8 | NLPID_Q933):
         case (LLC_UI<<8 | NLPID_IP):
         case (LLC_UI<<8 | NLPID_IP6):
             /* pass IP{4,6} to the OSI layer for proper link-layer printing */
-            isoclns_print(p-1, l2info.length+1, l2info.caplen+1);
+            isoclns_print(gndo, p - 1, l2info.length + 1, l2info.caplen + 1);
             break;
         default:
             printf("unknown protocol 0x%04x, length %u",l2info.proto, l2info.length);
@@ -884,13 +884,13 @@ juniper_mlfr_print(const struct pcap_pkthdr *h, register const u_char *p)
         switch (l2info.proto) {
         case (LLC_UI):
         case (LLC_UI<<8):
-            isoclns_print(p, l2info.length, l2info.caplen);
+            isoclns_print(gndo, p, l2info.length, l2info.caplen);
             break;
         case (LLC_UI<<8 | NLPID_Q933):
         case (LLC_UI<<8 | NLPID_IP):
         case (LLC_UI<<8 | NLPID_IP6):
             /* pass IP{4,6} to the OSI layer for proper link-layer printing */
-            isoclns_print(p-1, l2info.length+1, l2info.caplen+1);
+            isoclns_print(gndo, p - 1, l2info.length + 1, l2info.caplen + 1);
             break;
         default:
             printf("unknown protocol 0x%04x, length %u",l2info.proto, l2info.length);
@@ -936,7 +936,7 @@ juniper_atm1_print(const struct pcap_pkthdr *h, register const u_char *p)
         }
 
         if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */
-            isoclns_print(p + 1, l2info.length - 1, l2info.caplen - 1);
+            isoclns_print(gndo, p + 1, l2info.length - 1, l2info.caplen - 1);
             /* FIXME check if frame was recognized */
             return l2info.header_len;
         }
@@ -990,7 +990,7 @@ juniper_atm2_print(const struct pcap_pkthdr *h, register const u_char *p)
         }
 
         if (p[0] == 0x03) { /* Cisco style NLPID encaps ? */
-            isoclns_print(p + 1, l2info.length - 1, l2info.caplen - 1);
+            isoclns_print(gndo, p + 1, l2info.length - 1, l2info.caplen - 1);
             /* FIXME check if frame was recognized */
             return l2info.header_len;
         }
index cce0f80d8125ba9b17ca689fb57828113edb88e9..fdb1d9815372c9e198594c0301c02676f00c3c79 100644 (file)
@@ -290,7 +290,7 @@ llc_print(netdissect_options *ndo, const u_char *p, u_int length, u_int caplen,
 #endif
        if (ssap == LLCSAP_ISONS && dsap == LLCSAP_ISONS
            && control == LLC_UI) {
-               isoclns_print(p + 3, length - 3, caplen - 3);
+               isoclns_print(ndo, p + 3, length - 3, caplen - 3);
                return (1);
        }
 
index 1220028f5fff8e913eca9ebbb631a2335918bc7f..bf232ae3a83caa4b48ed3e1532d231a4f04b559b 100644 (file)
@@ -194,7 +194,7 @@ mpls_print(netdissect_options *ndo, const u_char *bp, u_int length)
                break;
 
        case PT_OSI:
-               isoclns_print(p, length - (p - bp), length - (p - bp));
+               isoclns_print(ndo, p, length - (p - bp), length - (p - bp));
                break;
 
        default:
index f0ad66177232e7f94a6421a8ef1a0c7125928f46..a8be6c8ba7c05fcdc4ef45410e4eb17e8ccae657 100644 (file)
@@ -118,7 +118,7 @@ null_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char
 #endif
 
        case BSD_AFNUM_ISO:
-               isoclns_print(p, length, caplen);
+               isoclns_print(ndo, p, length, caplen);
                break;
 
        case BSD_AFNUM_APPLETALK:
index 55ca4df357e1c23626fea235af627aba91130f37..c442cb5f3b656c505163751e22917016ea7097bc 100644 (file)
@@ -1474,8 +1474,8 @@ handle_ppp(u_int proto, const u_char *p, int length)
                ipx_print(gndo, p, length);
                break;
        case PPP_OSI:
-               isoclns_print(p, length, length);
-               break;
+               isoclns_print(gndo, p, length, length);
+               break;
        case PPP_MPLS_UCAST:
        case PPP_MPLS_MCAST:
                mpls_print(gndo, p, length);