Add program_name field in the netdissect_options structure

[tcpdump] / print-telnet.c

diff --git a/print-telnet.c b/print-telnet.c
index d0821bdedc55af9c7c7a2ce81924f4169c5f05cd..ae29b4749a21092f088f8844a2e34d3241884062 100644 (file)
--- a/print-telnet.c
+++ b/print-telnet.c
@@ -49,19 +49,11 @@
 #include "config.h"
 #endif
 
-#ifndef lint
-static const char rcsid[] _U_ =
-     "@(#) $Header: /tcpdump/master/tcpdump/print-telnet.c,v 1.24 2003-12-29 11:05:10 hannes Exp $";
-#endif
-
 #include <tcpdump-stdinc.h>
 
 #include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
 
-#include "interface.h"
-#include "addrtoname.h"
+#include "netdissect.h"
 
 #define TELCMDS
 #define TELOPTS
@@ -391,7 +383,7 @@ numstr(int x)
 
 /* sp points to IAC byte */
 static int
-telnet_parse(const u_char *sp, u_int length, int print)
+telnet_parse(netdissect_options *ndo, const u_char *sp, u_int length, int print)
 {
        int i, x;
        u_int c;
@@ -400,7 +392,7 @@ telnet_parse(const u_char *sp, u_int length, int print)
        do { \
                if (length < 1) \
                        goto pktend; \
-               TCHECK(*sp); \
+               ND_TCHECK(*sp); \
                c = *sp++; \
                length--; \
        } while (0)
@@ -413,7 +405,7 @@ telnet_parse(const u_char *sp, u_int length, int print)
        FETCH(c, sp, length);
        if (c == IAC) {         /* <IAC><IAC>! */
                if (print)
-                       printf("IAC IAC");
+                       ND_PRINT((ndo, "IAC IAC"));
                goto done;
        }
 
@@ -431,10 +423,10 @@ telnet_parse(const u_char *sp, u_int length, int print)
                FETCH(x, sp, length);
                if (x >= 0 && x < NTELOPTS) {
                        if (print)
-                               (void)printf("%s %s", telcmds[i], telopts[x]);
+                               ND_PRINT((ndo, "%s %s", telcmds[i], telopts[x]));
                } else {
                        if (print)
-                               (void)printf("%s %#x", telcmds[i], x);
+                               ND_PRINT((ndo, "%s %#x", telcmds[i], x));
                }
                if (c != SB)
                        break;
@@ -454,47 +446,46 @@ telnet_parse(const u_char *sp, u_int length, int print)
                                break;
                        FETCH(c, sp, length);
                        if (print)
-                               (void)printf(" %s", STR_OR_ID(c, authcmd));
+                               ND_PRINT((ndo, " %s", STR_OR_ID(c, authcmd)));
                        if (p <= sp)
                                break;
                        FETCH(c, sp, length);
                        if (print)
-                               (void)printf(" %s", STR_OR_ID(c, authtype));
+                               ND_PRINT((ndo, " %s", STR_OR_ID(c, authtype)));
                        break;
                case TELOPT_ENCRYPT:
                        if (p <= sp)
                                break;
                        FETCH(c, sp, length);
                        if (print)
-                               (void)printf(" %s", STR_OR_ID(c, enccmd));
+                               ND_PRINT((ndo, " %s", STR_OR_ID(c, enccmd)));
                        if (p <= sp)
                                break;
                        FETCH(c, sp, length);
                        if (print)
-                               (void)printf(" %s", STR_OR_ID(c, enctype));
+                               ND_PRINT((ndo, " %s", STR_OR_ID(c, enctype)));
                        break;
                default:
                        if (p <= sp)
                                break;
                        FETCH(c, sp, length);
                        if (print)
-                               (void)printf(" %s", STR_OR_ID(c, cmds));
+                               ND_PRINT((ndo, " %s", STR_OR_ID(c, cmds)));
                        break;
                }
                while (p > sp) {
                        FETCH(x, sp, length);
                        if (print)
-                               (void)printf(" %#x", x);
+                               ND_PRINT((ndo, " %#x", x));
                }
                /* terminating IAC SE */
                if (print)
-                       (void)printf(" SE");
+                       ND_PRINT((ndo, " SE"));
                sp += 2;
-               length -= 2;
                break;
        default:
                if (print)
-                       (void)printf("%s", telcmds[i]);
+                       ND_PRINT((ndo, "%s", telcmds[i]));
                goto done;
        }
 
@@ -502,14 +493,14 @@ done:
        return sp - osp;
 
 trunc:
-       (void)printf("[|telnet]");
+       ND_PRINT((ndo, "[|telnet]"));
 pktend:
        return -1;
 #undef FETCH
 }
 
 void
-telnet_print(const u_char *sp, u_int length)
+telnet_print(netdissect_options *ndo, const u_char *sp, u_int length)
 {
        int first = 1;
        const u_char *osp;
@@ -518,34 +509,38 @@ telnet_print(const u_char *sp, u_int length)
        osp = sp;
 
        while (length > 0 && *sp == IAC) {
-               l = telnet_parse(sp, length, 0);
+               /*
+                * Parse the Telnet command without printing it,
+                * to determine its length.
+                */
+               l = telnet_parse(ndo, sp, length, 0);
                if (l < 0)
                        break;
 
                /*
                 * now print it
                 */
-               if (Xflag && 2 < vflag) {
+               if (ndo->ndo_Xflag && 2 < ndo->ndo_vflag) {
                        if (first)
-                               printf("\nTelnet:");
-                       hex_print_with_offset(gndo,"\n", sp, l, sp - osp);
+                               ND_PRINT((ndo, "\nTelnet:"));
+                       hex_print_with_offset(ndo, "\n", sp, l, sp - osp);
                        if (l > 8)
-                               printf("\n\t\t\t\t");
+                               ND_PRINT((ndo, "\n\t\t\t\t"));
                        else
-                               printf("%*s\t", (8 - l) * 3, "");
+                               ND_PRINT((ndo, "%*s\t", (8 - l) * 3, ""));
                } else
-                       printf("%s", (first) ? " [telnet " : ", ");
+                       ND_PRINT((ndo, "%s", (first) ? " [telnet " : ", "));
 
-               (void)telnet_parse(sp, length, 1);
+               (void)telnet_parse(ndo, sp, length, 1);
                first = 0;
 
                sp += l;
                length -= l;
        }
        if (!first) {
-               if (Xflag && 2 < vflag)
-                       printf("\n");
+               if (ndo->ndo_Xflag && 2 < ndo->ndo_vflag)
+                       ND_PRINT((ndo, "\n"));
                else
-                       printf("]");
+                       ND_PRINT((ndo, "]"));
        }
 }