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OpenFlow: Have a function for each message type.
[tcpdump] / print-atalk.c
diff --git a/print-atalk.c b/print-atalk.c
index 9be3d079f64f9560f606c7e732840f1259f4a396..c921dc1a7d166cfc5d278fa459c791eb16af3918 100644 (file)
--- a/print-atalk.c
+++ b/print-atalk.c
@@ -17,27 +17,25 @@
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- *
- * Format and print AppleTalk packets.
  */
 
  */
 
-#define NETDISSECT_REWORKED
+/* \summary: AppleTalk printer */
+
 #ifdef HAVE_CONFIG_H
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
 #endif
 
-#include <tcpdump-stdinc.h>
+#include "netdissect-stdinc.h"
 
 #include <stdio.h>
 #include <string.h>
 
 
 #include <stdio.h>
 #include <string.h>
 
-#include "interface.h"
+#include "netdissect.h"
 #include "addrtoname.h"
 #include "ethertype.h"
 #include "addrtoname.h"
 #include "ethertype.h"
-#include "extract.h"                   /* must come after interface.h */
+#include "extract.h"
 #include "appletalk.h"
 
 #include "appletalk.h"
 
-static const char tstr[] = "[|atalk]";
 
 static const struct tok type2str[] = {
        { ddpRTMP,              "rtmp" },
 
 static const struct tok type2str[] = {
        { ddpRTMP,              "rtmp" },
@@ -50,13 +48,13 @@ static const struct tok type2str[] = {
 };
 
 struct aarp {
 };
 
 struct aarp {
-       u_int16_t       htype, ptype;
-       u_int8_t        halen, palen;
-       u_int16_t       op;
-       u_int8_t        hsaddr[6];
-       u_int8_t        psaddr[4];
-       u_int8_t        hdaddr[6];
-       u_int8_t        pdaddr[4];
+       nd_uint16_t     htype, ptype;
+       nd_uint8_t      halen, palen;
+       nd_uint16_t     op;
+       uint8_t         hsaddr[MAC_ADDR_LEN];
+       uint8_t         psaddr[4];
+       uint8_t         hdaddr[MAC_ADDR_LEN];
+       uint8_t         pdaddr[4];
 };
 
 static void atp_print(netdissect_options *, const struct atATP *, u_int);
 };
 
 static void atp_print(netdissect_options *, const struct atATP *, u_int);
@@ -68,17 +66,26 @@ static const struct atNBPtuple *nbp_tuple_print(netdissect_options *ndo, const s
 static const struct atNBPtuple *nbp_name_print(netdissect_options *, const struct atNBPtuple *,
                                               const u_char *);
 static const char *ataddr_string(netdissect_options *, u_short, u_char);
 static const struct atNBPtuple *nbp_name_print(netdissect_options *, const struct atNBPtuple *,
                                               const u_char *);
 static const char *ataddr_string(netdissect_options *, u_short, u_char);
-static void ddp_print(netdissect_options *, const u_char *, u_int, int, u_short, u_char, u_char);
-static const char *ddpskt_string(netdissect_options *, int);
+static void ddp_print(netdissect_options *, const u_char *, u_int, u_int, u_short, u_char, u_char);
+static const char *ddpskt_string(netdissect_options *, u_int);
 
 /*
  * Print LLAP packets received on a physical LocalTalk interface.
  */
 
 /*
  * Print LLAP packets received on a physical LocalTalk interface.
  */
-u_int
+void
 ltalk_if_print(netdissect_options *ndo,
                const struct pcap_pkthdr *h, const u_char *p)
 {
 ltalk_if_print(netdissect_options *ndo,
                const struct pcap_pkthdr *h, const u_char *p)
 {
-       return (llap_print(ndo, p, h->caplen));
+       u_int hdrlen;
+
+       ndo->ndo_protocol = "ltalk";
+       hdrlen = llap_print(ndo, p, h->len);
+       if (hdrlen == 0) {
+               /* Cut short by the snapshot length. */
+               ndo->ndo_ll_hdr_len += h->caplen;
+               return;
+       }
+       ndo->ndo_ll_hdr_len += hdrlen;
 }
 
 /*
 }
 
 /*
@@ -86,56 +93,74 @@ ltalk_if_print(netdissect_options *ndo,
  */
 u_int
 llap_print(netdissect_options *ndo,
  */
 u_int
 llap_print(netdissect_options *ndo,
-           register const u_char *bp, u_int length)
+           const u_char *bp, u_int length)
 {
 {
-       register const struct LAP *lp;
-       register const struct atDDP *dp;
-       register const struct atShortDDP *sdp;
+       const struct LAP *lp;
+       const struct atDDP *dp;
+       const struct atShortDDP *sdp;
        u_short snet;
        u_int hdrlen;
 
        u_short snet;
        u_int hdrlen;
 
+       ndo->ndo_protocol = "llap";
        if (length < sizeof(*lp)) {
        if (length < sizeof(*lp)) {
-               ND_PRINT((ndo, " [|llap %u]", length));
+               ND_PRINT(" [|llap %u]", length);
                return (length);
        }
                return (length);
        }
+       if (!ND_TTEST_LEN(bp, sizeof(*lp))) {
+               nd_print_trunc(ndo);
+               return (0);     /* cut short by the snapshot length */
+       }
        lp = (const struct LAP *)bp;
        bp += sizeof(*lp);
        length -= sizeof(*lp);
        hdrlen = sizeof(*lp);
        lp = (const struct LAP *)bp;
        bp += sizeof(*lp);
        length -= sizeof(*lp);
        hdrlen = sizeof(*lp);
-       switch (lp->type) {
+       switch (GET_U_1(lp->type)) {
 
        case lapShortDDP:
                if (length < ddpSSize) {
 
        case lapShortDDP:
                if (length < ddpSSize) {
-                       ND_PRINT((ndo, " [|sddp %u]", length));
+                       ND_PRINT(" [|sddp %u]", length);
                        return (length);
                }
                        return (length);
                }
+               if (!ND_TTEST_LEN(bp, ddpSSize)) {
+                       ND_PRINT(" [|sddp]");
+                       return (0);     /* cut short by the snapshot length */
+               }
                sdp = (const struct atShortDDP *)bp;
                sdp = (const struct atShortDDP *)bp;
-               ND_PRINT((ndo, "%s.%s",
-                   ataddr_string(ndo, 0, lp->src), ddpskt_string(ndo, sdp->srcSkt)));
-               ND_PRINT((ndo, " > %s.%s:",
-                   ataddr_string(ndo, 0, lp->dst), ddpskt_string(ndo, sdp->dstSkt)));
+               ND_PRINT("%s.%s",
+                   ataddr_string(ndo, 0, GET_U_1(lp->src)),
+                   ddpskt_string(ndo, GET_U_1(sdp->srcSkt)));
+               ND_PRINT(" > %s.%s:",
+                   ataddr_string(ndo, 0, GET_U_1(lp->dst)),
+                   ddpskt_string(ndo, GET_U_1(sdp->dstSkt)));
                bp += ddpSSize;
                length -= ddpSSize;
                hdrlen += ddpSSize;
                bp += ddpSSize;
                length -= ddpSSize;
                hdrlen += ddpSSize;
-               ddp_print(ndo, bp, length, sdp->type, 0, lp->src, sdp->srcSkt);
+               ddp_print(ndo, bp, length, GET_U_1(sdp->type), 0,
+                         GET_U_1(lp->src), GET_U_1(sdp->srcSkt));
                break;
 
        case lapDDP:
                if (length < ddpSize) {
                break;
 
        case lapDDP:
                if (length < ddpSize) {
-                       ND_PRINT((ndo, " [|ddp %u]", length));
+                       ND_PRINT(" [|ddp %u]", length);
                        return (length);
                }
                        return (length);
                }
+               if (!ND_TTEST_LEN(bp, ddpSize)) {
+                       ND_PRINT(" [|ddp]");
+                       return (0);     /* cut short by the snapshot length */
+               }
                dp = (const struct atDDP *)bp;
                dp = (const struct atDDP *)bp;
-               snet = EXTRACT_16BITS(&dp->srcNet);
-               ND_PRINT((ndo, "%s.%s", ataddr_string(ndo, snet, dp->srcNode),
-                   ddpskt_string(ndo, dp->srcSkt)));
-               ND_PRINT((ndo, " > %s.%s:",
-                   ataddr_string(ndo, EXTRACT_16BITS(&dp->dstNet), dp->dstNode),
-                   ddpskt_string(ndo, dp->dstSkt)));
+               snet = GET_BE_U_2(dp->srcNet);
+               ND_PRINT("%s.%s",
+                        ataddr_string(ndo, snet, GET_U_1(dp->srcNode)),
+                        ddpskt_string(ndo, GET_U_1(dp->srcSkt)));
+               ND_PRINT(" > %s.%s:",
+                   ataddr_string(ndo, GET_BE_U_2(dp->dstNet), GET_U_1(dp->dstNode)),
+                   ddpskt_string(ndo, GET_U_1(dp->dstSkt)));
                bp += ddpSize;
                length -= ddpSize;
                hdrlen += ddpSize;
                bp += ddpSize;
                length -= ddpSize;
                hdrlen += ddpSize;
-               ddp_print(ndo, bp, length, dp->type, snet, dp->srcNode, dp->srcSkt);
+               ddp_print(ndo, bp, length, GET_U_1(dp->type), snet,
+                         GET_U_1(dp->srcNode), GET_U_1(dp->srcSkt));
                break;
 
 #ifdef notdef
                break;
 
 #ifdef notdef
@@ -145,8 +170,9 @@ llap_print(netdissect_options *ndo,
 #endif
 
        default:
 #endif
 
        default:
-               ND_PRINT((ndo, "%d > %d at-lap#%d %u",
-                   lp->src, lp->dst, lp->type, length));
+               ND_PRINT("%u > %u at-lap#%u %u",
+                   GET_U_1(lp->src), GET_U_1(lp->dst), GET_U_1(lp->type),
+                   length);
                break;
        }
        return (hdrlen);
                break;
        }
        return (hdrlen);
@@ -159,61 +185,77 @@ llap_print(netdissect_options *ndo,
  */
 void
 atalk_print(netdissect_options *ndo,
  */
 void
 atalk_print(netdissect_options *ndo,
-            register const u_char *bp, u_int length)
+            const u_char *bp, u_int length)
 {
 {
-       register const struct atDDP *dp;
+       const struct atDDP *dp;
        u_short snet;
 
        u_short snet;
 
+       ndo->ndo_protocol = "atalk";
         if(!ndo->ndo_eflag)
         if(!ndo->ndo_eflag)
-            ND_PRINT((ndo, "AT "));
+            ND_PRINT("AT ");
 
        if (length < ddpSize) {
 
        if (length < ddpSize) {
-               ND_PRINT((ndo, " [|ddp %u]", length));
+               ND_PRINT(" [|ddp %u]", length);
+               return;
+       }
+       if (!ND_TTEST_LEN(bp, ddpSize)) {
+               ND_PRINT(" [|ddp]");
                return;
        }
        dp = (const struct atDDP *)bp;
                return;
        }
        dp = (const struct atDDP *)bp;
-       snet = EXTRACT_16BITS(&dp->srcNet);
-       ND_PRINT((ndo, "%s.%s", ataddr_string(ndo, snet, dp->srcNode),
-              ddpskt_string(ndo, dp->srcSkt)));
-       ND_PRINT((ndo, " > %s.%s: ",
-              ataddr_string(ndo, EXTRACT_16BITS(&dp->dstNet), dp->dstNode),
-              ddpskt_string(ndo, dp->dstSkt)));
+       snet = GET_BE_U_2(dp->srcNet);
+       ND_PRINT("%s.%s", ataddr_string(ndo, snet, GET_U_1(dp->srcNode)),
+                ddpskt_string(ndo, GET_U_1(dp->srcSkt)));
+       ND_PRINT(" > %s.%s: ",
+              ataddr_string(ndo, GET_BE_U_2(dp->dstNet), GET_U_1(dp->dstNode)),
+              ddpskt_string(ndo, GET_U_1(dp->dstSkt)));
        bp += ddpSize;
        length -= ddpSize;
        bp += ddpSize;
        length -= ddpSize;
-       ddp_print(ndo, bp, length, dp->type, snet, dp->srcNode, dp->srcSkt);
+       ddp_print(ndo, bp, length, GET_U_1(dp->type), snet,
+                 GET_U_1(dp->srcNode), GET_U_1(dp->srcSkt));
 }
 
 /* XXX should probably pass in the snap header and do checks like arp_print() */
 void
 aarp_print(netdissect_options *ndo,
 }
 
 /* XXX should probably pass in the snap header and do checks like arp_print() */
 void
 aarp_print(netdissect_options *ndo,
-           register const u_char *bp, u_int length)
+           const u_char *bp, u_int length)
 {
 {
-       register const struct aarp *ap;
+       const struct aarp *ap;
 
 #define AT(member) ataddr_string(ndo, (ap->member[1]<<8)|ap->member[2],ap->member[3])
 
 
 #define AT(member) ataddr_string(ndo, (ap->member[1]<<8)|ap->member[2],ap->member[3])
 
-       ND_PRINT((ndo, "aarp "));
+       ndo->ndo_protocol = "aarp";
+       ND_PRINT("aarp ");
        ap = (const struct aarp *)bp;
        ap = (const struct aarp *)bp;
-       if (EXTRACT_16BITS(&ap->htype) == 1 &&
-           EXTRACT_16BITS(&ap->ptype) == ETHERTYPE_ATALK &&
-           ap->halen == 6 && ap->palen == 4 )
-               switch (EXTRACT_16BITS(&ap->op)) {
+       if (!ND_TTEST_SIZE(ap)) {
+               /* Just bail if we don't have the whole chunk. */
+               nd_print_trunc(ndo);
+               return;
+       }
+       if (length < sizeof(*ap)) {
+               ND_PRINT(" [|aarp %u]", length);
+               return;
+       }
+       if (GET_BE_U_2(ap->htype) == 1 &&
+           GET_BE_U_2(ap->ptype) == ETHERTYPE_ATALK &&
+           GET_U_1(ap->halen) == MAC_ADDR_LEN && GET_U_1(ap->palen) == 4)
+               switch (GET_BE_U_2(ap->op)) {
 
                case 1:                         /* request */
 
                case 1:                         /* request */
-                       ND_PRINT((ndo, "who-has %s tell %s", AT(pdaddr), AT(psaddr)));
+                       ND_PRINT("who-has %s tell %s", AT(pdaddr), AT(psaddr));
                        return;
 
                case 2:                         /* response */
                        return;
 
                case 2:                         /* response */
-                       ND_PRINT((ndo, "reply %s is-at %s", AT(psaddr), etheraddr_string(ndo, ap->hsaddr)));
+                       ND_PRINT("reply %s is-at %s", AT(psaddr), GET_ETHERADDR_STRING(ap->hsaddr));
                        return;
 
                case 3:                         /* probe (oy!) */
                        return;
 
                case 3:                         /* probe (oy!) */
-                       ND_PRINT((ndo, "probe %s tell %s", AT(pdaddr), AT(psaddr)));
+                       ND_PRINT("probe %s tell %s", AT(pdaddr), AT(psaddr));
                        return;
                }
                        return;
                }
-       ND_PRINT((ndo, "len %u op %u htype %u ptype %#x halen %u palen %u",
-           length, EXTRACT_16BITS(&ap->op), EXTRACT_16BITS(&ap->htype),
-           EXTRACT_16BITS(&ap->ptype), ap->halen, ap->palen));
+       ND_PRINT("len %u op %u htype %u ptype %#x halen %u palen %u",
+           length, GET_BE_U_2(ap->op), GET_BE_U_2(ap->htype),
+           GET_BE_U_2(ap->ptype), GET_U_1(ap->halen), GET_U_1(ap->palen));
 }
 
 /*
 }
 
 /*
@@ -221,8 +263,8 @@ aarp_print(netdissect_options *ndo,
  */
 static void
 ddp_print(netdissect_options *ndo,
  */
 static void
 ddp_print(netdissect_options *ndo,
-          register const u_char *bp, register u_int length, register int t,
-          register u_short snet, register u_char snode, u_char skt)
+          const u_char *bp, u_int length, u_int t,
+          u_short snet, u_char snode, u_char skt)
 {
 
        switch (t) {
 {
 
        switch (t) {
@@ -240,114 +282,114 @@ ddp_print(netdissect_options *ndo,
                break;
 
        default:
                break;
 
        default:
-               ND_PRINT((ndo, " at-%s %d", tok2str(type2str, NULL, t), length));
+               ND_PRINT(" at-%s %u", tok2str(type2str, NULL, t), length);
                break;
        }
 }
 
 static void
 atp_print(netdissect_options *ndo,
                break;
        }
 }
 
 static void
 atp_print(netdissect_options *ndo,
-          register const struct atATP *ap, u_int length)
+          const struct atATP *ap, u_int length)
 {
 {
-       char c;
-       u_int32_t data;
+       uint8_t control;
+       uint32_t data;
 
        if ((const u_char *)(ap + 1) > ndo->ndo_snapend) {
                /* Just bail if we don't have the whole chunk. */
 
        if ((const u_char *)(ap + 1) > ndo->ndo_snapend) {
                /* Just bail if we don't have the whole chunk. */
-               ND_PRINT((ndo, "%s", tstr));
+               nd_print_trunc(ndo);
                return;
        }
        if (length < sizeof(*ap)) {
                return;
        }
        if (length < sizeof(*ap)) {
-               ND_PRINT((ndo, " [|atp %u]", length));
+               ND_PRINT(" [|atp %u]", length);
                return;
        }
        length -= sizeof(*ap);
                return;
        }
        length -= sizeof(*ap);
-       switch (ap->control & 0xc0) {
+       control = GET_U_1(ap->control);
+       switch (control & 0xc0) {
 
        case atpReqCode:
 
        case atpReqCode:
-               ND_PRINT((ndo, " atp-req%s %d",
-                            ap->control & atpXO? " " : "*",
-                            EXTRACT_16BITS(&ap->transID)));
+               ND_PRINT(" atp-req%s %u",
+                            control & atpXO? " " : "*",
+                            GET_BE_U_2(ap->transID));
 
 
-               atp_bitmap_print(ndo, ap->bitmap);
+               atp_bitmap_print(ndo, GET_U_1(ap->bitmap));
 
                if (length != 0)
 
                if (length != 0)
-                       ND_PRINT((ndo, " [len=%u]", length));
+                       ND_PRINT(" [len=%u]", length);
 
 
-               switch (ap->control & (atpEOM|atpSTS)) {
+               switch (control & (atpEOM|atpSTS)) {
                case atpEOM:
                case atpEOM:
-                       ND_PRINT((ndo, " [EOM]"));
+                       ND_PRINT(" [EOM]");
                        break;
                case atpSTS:
                        break;
                case atpSTS:
-                       ND_PRINT((ndo, " [STS]"));
+                       ND_PRINT(" [STS]");
                        break;
                case atpEOM|atpSTS:
                        break;
                case atpEOM|atpSTS:
-                       ND_PRINT((ndo, " [EOM,STS]"));
+                       ND_PRINT(" [EOM,STS]");
                        break;
                }
                break;
 
        case atpRspCode:
                        break;
                }
                break;
 
        case atpRspCode:
-               ND_PRINT((ndo, " atp-resp%s%d:%d (%u)",
-                            ap->control & atpEOM? "*" : " ",
-                            EXTRACT_16BITS(&ap->transID), ap->bitmap, length));
-               switch (ap->control & (atpXO|atpSTS)) {
+               ND_PRINT(" atp-resp%s%u:%u (%u)",
+                            control & atpEOM? "*" : " ",
+                            GET_BE_U_2(ap->transID), GET_U_1(ap->bitmap),
+                            length);
+               switch (control & (atpXO|atpSTS)) {
                case atpXO:
                case atpXO:
-                       ND_PRINT((ndo, " [XO]"));
+                       ND_PRINT(" [XO]");
                        break;
                case atpSTS:
                        break;
                case atpSTS:
-                       ND_PRINT((ndo, " [STS]"));
+                       ND_PRINT(" [STS]");
                        break;
                case atpXO|atpSTS:
                        break;
                case atpXO|atpSTS:
-                       ND_PRINT((ndo, " [XO,STS]"));
+                       ND_PRINT(" [XO,STS]");
                        break;
                }
                break;
 
        case atpRelCode:
                        break;
                }
                break;
 
        case atpRelCode:
-               ND_PRINT((ndo, " atp-rel  %d", EXTRACT_16BITS(&ap->transID)));
+               ND_PRINT(" atp-rel  %u", GET_BE_U_2(ap->transID));
 
 
-               atp_bitmap_print(ndo, ap->bitmap);
+               atp_bitmap_print(ndo, GET_U_1(ap->bitmap));
 
                /* length should be zero */
                if (length)
 
                /* length should be zero */
                if (length)
-                       ND_PRINT((ndo, " [len=%u]", length));
+                       ND_PRINT(" [len=%u]", length);
 
                /* there shouldn't be any control flags */
 
                /* there shouldn't be any control flags */
-               if (ap->control & (atpXO|atpEOM|atpSTS)) {
-                       c = '[';
-                       if (ap->control & atpXO) {
-                               ND_PRINT((ndo, "%cXO", c));
+               if (control & (atpXO|atpEOM|atpSTS)) {
+                       char c = '[';
+                       if (control & atpXO) {
+                               ND_PRINT("%cXO", c);
                                c = ',';
                        }
                                c = ',';
                        }
-                       if (ap->control & atpEOM) {
-                               ND_PRINT((ndo, "%cEOM", c));
+                       if (control & atpEOM) {
+                               ND_PRINT("%cEOM", c);
                                c = ',';
                        }
                                c = ',';
                        }
-                       if (ap->control & atpSTS) {
-                               ND_PRINT((ndo, "%cSTS", c));
-                               c = ',';
+                       if (control & atpSTS) {
+                               ND_PRINT("%cSTS", c);
                        }
                        }
-                       ND_PRINT((ndo, "]"));
+                       ND_PRINT("]");
                }
                break;
 
        default:
                }
                break;
 
        default:
-               ND_PRINT((ndo, " atp-0x%x  %d (%u)", ap->control,
-                            EXTRACT_16BITS(&ap->transID), length));
+               ND_PRINT(" atp-0x%x  %u (%u)", control,
+                            GET_BE_U_2(ap->transID), length);
                break;
        }
                break;
        }
-       data = EXTRACT_32BITS(&ap->userData);
+       data = GET_BE_U_4(ap->userData);
        if (data != 0)
        if (data != 0)
-               ND_PRINT((ndo, " 0x%x", data));
+               ND_PRINT(" 0x%x", data);
 }
 
 static void
 atp_bitmap_print(netdissect_options *ndo,
 }
 
 static void
 atp_bitmap_print(netdissect_options *ndo,
-                 register u_char bm)
+                 u_char bm)
 {
 {
-       register char c;
-       register int i;
+       u_int i;
 
        /*
         * The '& 0xff' below is needed for compilers that want to sign
 
        /*
         * The '& 0xff' below is needed for compilers that want to sign
@@ -355,59 +397,62 @@ atp_bitmap_print(netdissect_options *ndo,
         * (gcc is smart enough to eliminate it, at least on the Sparc).
         */
        if ((bm + 1) & (bm & 0xff)) {
         * (gcc is smart enough to eliminate it, at least on the Sparc).
         */
        if ((bm + 1) & (bm & 0xff)) {
-               c = '<';
+               char c = '<';
                for (i = 0; bm; ++i) {
                        if (bm & 1) {
                for (i = 0; bm; ++i) {
                        if (bm & 1) {
-                               ND_PRINT((ndo, "%c%d", c, i));
+                               ND_PRINT("%c%u", c, i);
                                c = ',';
                        }
                        bm >>= 1;
                }
                                c = ',';
                        }
                        bm >>= 1;
                }
-               ND_PRINT((ndo, ">"));
+               ND_PRINT(">");
        } else {
                for (i = 0; bm; ++i)
                        bm >>= 1;
                if (i > 1)
        } else {
                for (i = 0; bm; ++i)
                        bm >>= 1;
                if (i > 1)
-                       ND_PRINT((ndo, "<0-%d>", i - 1));
+                       ND_PRINT("<0-%u>", i - 1);
                else
                else
-                       ND_PRINT((ndo, "<0>"));
+                       ND_PRINT("<0>");
        }
 }
 
 static void
 nbp_print(netdissect_options *ndo,
        }
 }
 
 static void
 nbp_print(netdissect_options *ndo,
-          register const struct atNBP *np, u_int length, register u_short snet,
-          register u_char snode, register u_char skt)
+          const struct atNBP *np, u_int length, u_short snet,
+          u_char snode, u_char skt)
 {
 {
-       register const struct atNBPtuple *tp =
-               (const struct atNBPtuple *)((u_char *)np + nbpHeaderSize);
-       int i;
+       const struct atNBPtuple *tp =
+               (const struct atNBPtuple *)((const u_char *)np + nbpHeaderSize);
+       uint8_t control;
+       u_int i;
        const u_char *ep;
 
        if (length < nbpHeaderSize) {
        const u_char *ep;
 
        if (length < nbpHeaderSize) {
-               ND_PRINT((ndo, " truncated-nbp %u", length));
+               ND_PRINT(" truncated-nbp %u", length);
                return;
        }
 
        length -= nbpHeaderSize;
        if (length < 8) {
                /* must be room for at least one tuple */
                return;
        }
 
        length -= nbpHeaderSize;
        if (length < 8) {
                /* must be room for at least one tuple */
-               ND_PRINT((ndo, " truncated-nbp %u", length + nbpHeaderSize));
+               ND_PRINT(" truncated-nbp %u", length + nbpHeaderSize);
                return;
        }
        /* ep points to end of available data */
        ep = ndo->ndo_snapend;
        if ((const u_char *)tp > ep) {
                return;
        }
        /* ep points to end of available data */
        ep = ndo->ndo_snapend;
        if ((const u_char *)tp > ep) {
-               ND_PRINT((ndo, "%s", tstr));
+               nd_print_trunc(ndo);
                return;
        }
                return;
        }
-       switch (i = np->control & 0xf0) {
+       control = GET_U_1(np->control);
+       switch (i = (control & 0xf0)) {
 
        case nbpBrRq:
        case nbpLkUp:
 
        case nbpBrRq:
        case nbpLkUp:
-               ND_PRINT((ndo, i == nbpLkUp? " nbp-lkup %d:":" nbp-brRq %d:", np->id));
+               ND_PRINT(i == nbpLkUp? " nbp-lkup %u:":" nbp-brRq %u:",
+                        GET_U_1(np->id));
                if ((const u_char *)(tp + 1) > ep) {
                if ((const u_char *)(tp + 1) > ep) {
-                       ND_PRINT((ndo, "%s", tstr));
+                       nd_print_trunc(ndo);
                        return;
                }
                (void)nbp_name_print(ndo, tp, ep);
                        return;
                }
                (void)nbp_name_print(ndo, tp, ep);
@@ -416,106 +461,113 @@ nbp_print(netdissect_options *ndo,
                 * be one tuple, the address must match the source
                 * address and the enumerator should be zero.
                 */
                 * be one tuple, the address must match the source
                 * address and the enumerator should be zero.
                 */
-               if ((np->control & 0xf) != 1)
-                       ND_PRINT((ndo, " [ntup=%d]", np->control & 0xf));
-               if (tp->enumerator)
-                       ND_PRINT((ndo, " [enum=%d]", tp->enumerator));
-               if (EXTRACT_16BITS(&tp->net) != snet ||
-                   tp->node != snode || tp->skt != skt)
-                       ND_PRINT((ndo, " [addr=%s.%d]",
-                           ataddr_string(ndo, EXTRACT_16BITS(&tp->net),
-                           tp->node), tp->skt));
+               if ((control & 0xf) != 1)
+                       ND_PRINT(" [ntup=%u]", control & 0xf);
+               if (GET_U_1(tp->enumerator))
+                       ND_PRINT(" [enum=%u]", GET_U_1(tp->enumerator));
+               if (GET_BE_U_2(tp->net) != snet ||
+                   GET_U_1(tp->node) != snode ||
+                   GET_U_1(tp->skt) != skt)
+                       ND_PRINT(" [addr=%s.%u]",
+                           ataddr_string(ndo, GET_BE_U_2(tp->net),
+                                         GET_U_1(tp->node)),
+                           GET_U_1(tp->skt));
                break;
 
        case nbpLkUpReply:
                break;
 
        case nbpLkUpReply:
-               ND_PRINT((ndo, " nbp-reply %d:", np->id));
+               ND_PRINT(" nbp-reply %u:", GET_U_1(np->id));
 
                /* print each of the tuples in the reply */
 
                /* print each of the tuples in the reply */
-               for (i = np->control & 0xf; --i >= 0 && tp; )
+               for (i = control & 0xf; i != 0 && tp; i--)
                        tp = nbp_tuple_print(ndo, tp, ep, snet, snode, skt);
                break;
 
        default:
                        tp = nbp_tuple_print(ndo, tp, ep, snet, snode, skt);
                break;
 
        default:
-               ND_PRINT((ndo, " nbp-0x%x  %d (%u)", np->control, np->id, length));
+               ND_PRINT(" nbp-0x%x  %u (%u)", control, GET_U_1(np->id),
+                        length);
                break;
        }
 }
 
 /* print a counted string */
                break;
        }
 }
 
 /* print a counted string */
-static const char *
+static const u_char *
 print_cstring(netdissect_options *ndo,
 print_cstring(netdissect_options *ndo,
-              register const char *cp, register const u_char *ep)
+              const u_char *cp, const u_char *ep)
 {
 {
-       register u_int length;
+       u_int length;
 
 
-       if (cp >= (const char *)ep) {
-               ND_PRINT((ndo, "%s", tstr));
+       if (cp >= ep) {
+               nd_print_trunc(ndo);
                return (0);
        }
                return (0);
        }
-       length = *cp++;
+       length = GET_U_1(cp);
+       cp++;
 
        /* Spec says string can be at most 32 bytes long */
        if (length > 32) {
 
        /* Spec says string can be at most 32 bytes long */
        if (length > 32) {
-               ND_PRINT((ndo, "[len=%u]", length));
+               ND_PRINT("[len=%u]", length);
                return (0);
        }
                return (0);
        }
-       while ((int)--length >= 0) {
-               if (cp >= (const char *)ep) {
-                       ND_PRINT((ndo, "%s", tstr));
+       while (length != 0) {
+               if (cp >= ep) {
+                       nd_print_trunc(ndo);
                        return (0);
                }
                        return (0);
                }
-               ND_PRINT((ndo, "%c", *cp++));
+               fn_print_char(ndo, GET_U_1(cp));
+               cp++;
+               length--;
        }
        return (cp);
 }
 
 static const struct atNBPtuple *
 nbp_tuple_print(netdissect_options *ndo,
        }
        return (cp);
 }
 
 static const struct atNBPtuple *
 nbp_tuple_print(netdissect_options *ndo,
-                register const struct atNBPtuple *tp, register const u_char *ep,
-                register u_short snet, register u_char snode, register u_char skt)
+                const struct atNBPtuple *tp, const u_char *ep,
+                u_short snet, u_char snode, u_char skt)
 {
 {
-       register const struct atNBPtuple *tpn;
+       const struct atNBPtuple *tpn;
 
        if ((const u_char *)(tp + 1) > ep) {
 
        if ((const u_char *)(tp + 1) > ep) {
-               ND_PRINT((ndo, "%s", tstr));
+               nd_print_trunc(ndo);
                return 0;
        }
        tpn = nbp_name_print(ndo, tp, ep);
 
        /* if the enumerator isn't 1, print it */
                return 0;
        }
        tpn = nbp_name_print(ndo, tp, ep);
 
        /* if the enumerator isn't 1, print it */
-       if (tp->enumerator != 1)
-               ND_PRINT((ndo, "(%d)", tp->enumerator));
+       if (GET_U_1(tp->enumerator) != 1)
+               ND_PRINT("(%u)", GET_U_1(tp->enumerator));
 
        /* if the socket doesn't match the src socket, print it */
 
        /* if the socket doesn't match the src socket, print it */
-       if (tp->skt != skt)
-               ND_PRINT((ndo, " %d", tp->skt));
+       if (GET_U_1(tp->skt) != skt)
+               ND_PRINT(" %u", GET_U_1(tp->skt));
 
        /* if the address doesn't match the src address, it's an anomaly */
 
        /* if the address doesn't match the src address, it's an anomaly */
-       if (EXTRACT_16BITS(&tp->net) != snet || tp->node != snode)
-               ND_PRINT((ndo, " [addr=%s]",
-                   ataddr_string(ndo, EXTRACT_16BITS(&tp->net), tp->node)));
+       if (GET_BE_U_2(tp->net) != snet ||
+           GET_U_1(tp->node) != snode)
+               ND_PRINT(" [addr=%s]",
+                   ataddr_string(ndo, GET_BE_U_2(tp->net), GET_U_1(tp->node)));
 
        return (tpn);
 }
 
 static const struct atNBPtuple *
 nbp_name_print(netdissect_options *ndo,
 
        return (tpn);
 }
 
 static const struct atNBPtuple *
 nbp_name_print(netdissect_options *ndo,
-               const struct atNBPtuple *tp, register const u_char *ep)
+               const struct atNBPtuple *tp, const u_char *ep)
 {
 {
-       register const char *cp = (const char *)tp + nbpTupleSize;
+       const u_char *cp = (const u_char *)tp + nbpTupleSize;
 
 
-       ND_PRINT((ndo, " "));
+       ND_PRINT(" ");
 
        /* Object */
 
        /* Object */
-       ND_PRINT((ndo, "\""));
+       ND_PRINT("\"");
        if ((cp = print_cstring(ndo, cp, ep)) != NULL) {
                /* Type */
        if ((cp = print_cstring(ndo, cp, ep)) != NULL) {
                /* Type */
-               ND_PRINT((ndo, ":"));
+               ND_PRINT(":");
                if ((cp = print_cstring(ndo, cp, ep)) != NULL) {
                        /* Zone */
                if ((cp = print_cstring(ndo, cp, ep)) != NULL) {
                        /* Zone */
-                       ND_PRINT((ndo, "@"));
+                       ND_PRINT("@");
                        if ((cp = print_cstring(ndo, cp, ep)) != NULL)
                        if ((cp = print_cstring(ndo, cp, ep)) != NULL)
-                               ND_PRINT((ndo, "\""));
+                               ND_PRINT("\"");
                }
        }
        return ((const struct atNBPtuple *)cp);
                }
        }
        return ((const struct atNBPtuple *)cp);
@@ -525,7 +577,7 @@ nbp_name_print(netdissect_options *ndo,
 #define HASHNAMESIZE 4096
 
 struct hnamemem {
 #define HASHNAMESIZE 4096
 
 struct hnamemem {
-       int addr;
+       u_int addr;
        char *name;
        struct hnamemem *nxt;
 };
        char *name;
        struct hnamemem *nxt;
 };
@@ -536,43 +588,64 @@ static const char *
 ataddr_string(netdissect_options *ndo,
               u_short atnet, u_char athost)
 {
 ataddr_string(netdissect_options *ndo,
               u_short atnet, u_char athost)
 {
-       register struct hnamemem *tp, *tp2;
-       register int i = (atnet << 8) | athost;
+       struct hnamemem *tp, *tp2;
+       u_int i = (atnet << 8) | athost;
        char nambuf[256+1];
        static int first = 1;
        FILE *fp;
 
        /*
        char nambuf[256+1];
        static int first = 1;
        FILE *fp;
 
        /*
-        * if this is the first call, see if there's an AppleTalk
-        * number to name map file.
+        * Are we doing address to name resolution?
         */
         */
-       if (first && (first = 0, !ndo->ndo_nflag)
-           && (fp = fopen("/etc/atalk.names", "r"))) {
-               char line[256];
-               int i1, i2;
-
-               while (fgets(line, sizeof(line), fp)) {
-                       if (line[0] == '\n' || line[0] == 0 || line[0] == '#')
-                               continue;
-                       if (sscanf(line, "%d.%d %256s", &i1, &i2, nambuf) == 3)
-                               /* got a hostname. */
-                               i2 |= (i1 << 8);
-                       else if (sscanf(line, "%d %256s", &i1, nambuf) == 2)
-                               /* got a net name */
-                               i2 = (i1 << 8) | 255;
-                       else
-                               continue;
-
-                       for (tp = &hnametable[i2 & (HASHNAMESIZE-1)];
-                            tp->nxt; tp = tp->nxt)
-                               ;
-                       tp->addr = i2;
-                       tp->nxt = newhnamemem();
-                       tp->name = strdup(nambuf);
+       if (!ndo->ndo_nflag) {
+               /*
+                * Yes.  Have we tried to open and read an AppleTalk
+                * number to name map file?
+                */
+               if (!first) {
+                       /*
+                        * No; try to do so.
+                        */
+                       first = 0;
+                       fp = fopen("/etc/atalk.names", "r");
+                       if (fp != NULL) {
+                               char line[256];
+                               u_int i1, i2;
+
+                               while (fgets(line, sizeof(line), fp)) {
+                                       if (line[0] == '\n' || line[0] == 0 ||
+                                           line[0] == '#')
+                                               continue;
+                                       if (sscanf(line, "%u.%u %256s", &i1,
+                                           &i2, nambuf) == 3)
+                                               /* got a hostname. */
+                                               i2 |= (i1 << 8);
+                                       else if (sscanf(line, "%u %256s", &i1,
+                                           nambuf) == 2)
+                                               /* got a net name */
+                                               i2 = (i1 << 8) | 255;
+                                       else
+                                               continue;
+
+                                       for (tp = &hnametable[i2 & (HASHNAMESIZE-1)];
+                                            tp->nxt; tp = tp->nxt)
+                                               ;
+                                       tp->addr = i2;
+                                       tp->nxt = newhnamemem(ndo);
+                                       tp->name = strdup(nambuf);
+                                       if (tp->name == NULL)
+                                               (*ndo->ndo_error)(ndo,
+                                                   S_ERR_ND_MEM_ALLOC,
+                                                   "%s: strdup(nambuf)", __func__);
+                               }
+                               fclose(fp);
+                       }
                }
                }
-               fclose(fp);
        }
 
        }
 
+       /*
+        * Now try to look up the address in the table.
+        */
        for (tp = &hnametable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
                if (tp->addr == i)
                        return (tp->name);
        for (tp = &hnametable[i & (HASHNAMESIZE-1)]; tp->nxt; tp = tp->nxt)
                if (tp->addr == i)
                        return (tp->name);
@@ -582,20 +655,26 @@ ataddr_string(netdissect_options *ndo,
        for (tp2 = &hnametable[i & (HASHNAMESIZE-1)]; tp2->nxt; tp2 = tp2->nxt)
                if (tp2->addr == i) {
                        tp->addr = (atnet << 8) | athost;
        for (tp2 = &hnametable[i & (HASHNAMESIZE-1)]; tp2->nxt; tp2 = tp2->nxt)
                if (tp2->addr == i) {
                        tp->addr = (atnet << 8) | athost;
-                       tp->nxt = newhnamemem();
-                       (void)snprintf(nambuf, sizeof(nambuf), "%s.%d",
+                       tp->nxt = newhnamemem(ndo);
+                       (void)snprintf(nambuf, sizeof(nambuf), "%s.%u",
                            tp2->name, athost);
                        tp->name = strdup(nambuf);
                            tp2->name, athost);
                        tp->name = strdup(nambuf);
+                       if (tp->name == NULL)
+                               (*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+                                       "%s: strdup(nambuf)", __func__);
                        return (tp->name);
                }
 
        tp->addr = (atnet << 8) | athost;
                        return (tp->name);
                }
 
        tp->addr = (atnet << 8) | athost;
-       tp->nxt = newhnamemem();
+       tp->nxt = newhnamemem(ndo);
        if (athost != 255)
        if (athost != 255)
-               (void)snprintf(nambuf, sizeof(nambuf), "%d.%d", atnet, athost);
+               (void)snprintf(nambuf, sizeof(nambuf), "%u.%u", atnet, athost);
        else
        else
-               (void)snprintf(nambuf, sizeof(nambuf), "%d", atnet);
+               (void)snprintf(nambuf, sizeof(nambuf), "%u", atnet);
        tp->name = strdup(nambuf);
        tp->name = strdup(nambuf);
+       if (tp->name == NULL)
+               (*ndo->ndo_error)(ndo, S_ERR_ND_MEM_ALLOC,
+                                 "%s: strdup(nambuf)", __func__);
 
        return (tp->name);
 }
 
        return (tp->name);
 }
@@ -610,13 +689,13 @@ static const struct tok skt2str[] = {
 
 static const char *
 ddpskt_string(netdissect_options *ndo,
 
 static const char *
 ddpskt_string(netdissect_options *ndo,
-              register int skt)
+              u_int skt)
 {
        static char buf[8];
 
        if (ndo->ndo_nflag) {
 {
        static char buf[8];
 
        if (ndo->ndo_nflag) {
-               (void)snprintf(buf, sizeof(buf), "%d", skt);
+               (void)snprintf(buf, sizeof(buf), "%u", skt);
                return (buf);
        }
                return (buf);
        }
-       return (tok2str(skt2str, "%d", skt));
+       return (tok2str(skt2str, "%u", skt));
 }
 }
[mirror] the TCPdump network dissector