]> The Tcpdump Group git mirrors - tcpdump/blobdiff - tcpdump.c
more consistent use of the length: output;
[tcpdump] / tcpdump.c
index 6becb9b3dd6fa154f44ee42d014eeec9c2a7fafb..2f2710e56ef90ace91bf5e393b8673217b867834 100644 (file)
--- a/tcpdump.c
+++ b/tcpdump.c
@@ -30,7 +30,7 @@ static const char copyright[] =
     "@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 2000\n\
 The Regents of the University of California.  All rights reserved.\n";
 static const char rcsid[] =
-    "@(#) $Header: /tcpdump/master/tcpdump/tcpdump.c,v 1.177 2002-06-11 17:09:00 itojun Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/tcpdump.c,v 1.184 2002-08-09 13:50:15 risso Exp $ (LBL)";
 #endif
 
 /*
@@ -45,18 +45,22 @@ static const char rcsid[] =
 #include "config.h"
 #endif
 
-#include <sys/types.h>
-#include <sys/time.h>
+#include <tcpdump-stdinc.h>
 
-#include <netinet/in.h>
+#ifdef WIN32
+#include "getopt.h"
+#include "w32_fzs.h"
+extern int strcasecmp (const char *__s1, const char *__s2);
+extern int SIZE_BUF;
+#define off_t long
+#define uint UINT
+#endif /* WIN32 */
 
 #include <pcap.h>
 #include <signal.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <unistd.h>
-#include <ctype.h>
 
 
 #include "interface.h"
@@ -161,6 +165,15 @@ static struct printer printers[] = {
 #endif
 #ifdef DLT_PFLOG
        { pflog_if_print,       DLT_PFLOG },
+#endif
+#ifdef DLT_FR
+       { fr_if_print,          DLT_FR },
+#endif
+#ifdef DLT_FRELAY
+       { fr_if_print,          DLT_FRELAY },
+#endif
+#ifdef DLT_SUNATM
+       { sunatm_if_print,      DLT_SUNATM },
 #endif
        { NULL,                 0 },
 };
@@ -198,10 +211,27 @@ main(int argc, char **argv)
        register char *cp, *infile, *cmdbuf, *device, *RFileName, *WFileName;
        pcap_handler printer;
        struct bpf_program fcode;
+#ifndef WIN32
        RETSIGTYPE (*oldhandler)(int);
+#endif
        struct dump_info dumpinfo;
        u_char *pcap_userdata;
        char ebuf[PCAP_ERRBUF_SIZE];
+#ifdef HAVE_PCAP_FINDALLDEVS
+       pcap_if_t *devpointer;
+       int devnum;
+#endif
+#ifdef WIN32
+       DWORD dwVersion;
+       DWORD dwWindowsMajorVersion;
+       u_int UserBufferSize=1000000;
+#endif
+
+#ifdef WIN32
+       dwVersion=GetVersion();         /* get the OS version */
+       dwWindowsMajorVersion =  (DWORD)(LOBYTE(LOWORD(dwVersion)));
+       if(wsockinit()!=0) return 1;
+#endif /* WIN32 */
 
        cnt = -1;
        device = NULL;
@@ -222,7 +252,15 @@ main(int argc, char **argv)
 
        opterr = 0;
        while (
+#ifdef WIN32
+           (op = getopt(argc, argv, "aAB:c:C:dDeE:fF:i:lm:nNOpqr:Rs:StT:uvw:xXY")) != -1)
+#else /* WIN32 */
+#ifdef HAVE_PCAP_FINDALLDEVS
+           (op = getopt(argc, argv, "aAc:C:dDeE:fF:i:lm:nNOpqr:Rs:StT:uvw:xXY")) != -1)
+#else /* HAVE_PCAP_FINDALLDEVS */
            (op = getopt(argc, argv, "aAc:C:deE:fF:i:lm:nNOpqr:Rs:StT:uvw:xXY")) != -1)
+#endif /* HAVE_PCAP_FINDALLDEVS */
+#endif /* WIN32 */
                switch (op) {
 
                case 'a':
@@ -235,6 +273,14 @@ main(int argc, char **argv)
                        ++Aflag;
                        break;
 
+#ifdef WIN32
+               case 'B':
+                       UserBufferSize = atoi(optarg)*1024;
+                       if (UserBufferSize < 0)
+                               error("invalid packet buffer size %s", optarg);
+                       break;
+#endif /* WIN32 */
+
                case 'c':
                        cnt = atoi(optarg);
                        if (cnt <= 0)
@@ -251,6 +297,22 @@ main(int argc, char **argv)
                        ++dflag;
                        break;
 
+#ifdef HAVE_PCAP_FINDALLDEVS
+               case 'D':
+                       if (pcap_findalldevs(&devpointer, ebuf) < 0)
+                               error("%s", ebuf);
+                       else {
+                               for (i = 0; devpointer != 0; i++) {
+                                       printf("%d.%s", i+1, devpointer->name);
+                                       if (devpointer->description != NULL)
+                                               printf(" (%s)", devpointer->description);
+                                       printf("\n");
+                                       devpointer = devpointer->next;
+                               }
+                       }
+                       return 0;
+#endif /* HAVE_PCAP_FINDALLDEVS */
+
                case 'e':
                        ++eflag;
                        break;
@@ -271,6 +333,37 @@ main(int argc, char **argv)
                        break;
 
                case 'i':
+                       if (optarg[0] == '0' && optarg[1] == 0)
+                               error("Invalid adapter index");
+                       
+#ifdef HAVE_PCAP_FINDALLDEVS
+                       /*
+                        * If the argument is a number, treat it as
+                        * an index into the list of adapters, as
+                        * printed by "tcpdump -D".
+                        *
+                        * This should be OK on UNIX systems, as interfaces
+                        * shouldn't have names that begin with digits.
+                        * It can be useful on Windows, where more than
+                        * one interface can have the same name.
+                        */
+                       if ((devnum = atoi(optarg)) != 0) {
+                               if (devnum < 0)
+                                       error("Invalid adapter index");
+
+                               if (pcap_findalldevs(&devpointer, ebuf) < 0)
+                                       error("%s", ebuf);
+                               else {
+                                       for (i = 0; i < devnum-1; i++){
+                                               devpointer = devpointer->next;
+                                               if (devpointer == NULL)
+                                                       error("Invalid adapter index");
+                                       }
+                               }
+                               device = devpointer->name;
+                               break;
+                       }
+#endif /* HAVE_PCAP_FINDALLDEVS */
                        device = optarg;
                        break;
 
@@ -408,7 +501,9 @@ main(int argc, char **argv)
                 * Also, this prevents the user from reading anyone's
                 * trace file.
                 */
+#ifndef WIN32
                setuid(getuid());
+#endif /* WIN32 */
 
                pd = pcap_open_offline(RFileName, ebuf);
                if (pd == NULL)
@@ -423,12 +518,21 @@ main(int argc, char **argv)
                        if (device == NULL)
                                error("%s", ebuf);
                }
+#ifdef WIN32
+               PrintCapBegins(program_name,device);
+#endif /* WIN32 */
                *ebuf = '\0';
                pd = pcap_open_live(device, snaplen, !pflag, 1000, ebuf);
                if (pd == NULL)
                        error("%s", ebuf);
                else if (*ebuf)
                        warning("%s", ebuf);
+#ifdef WIN32
+               if(UserBufferSize != 1000000)
+                       if(pcap_setbuff(pd, UserBufferSize)==-1){
+                               error("%s", pcap_geterr(pd));
+                       }
+#endif /* WIN32 */
                i = pcap_snapshot(pd);
                if (snaplen < i) {
                        warning("snaplen raised from %d to %d", snaplen, i);
@@ -442,7 +546,9 @@ main(int argc, char **argv)
                /*
                 * Let user own process after socket has been opened.
                 */
+#ifndef WIN32
                setuid(getuid());
+#endif /* WIN32 */
        }
        if (infile)
                cmdbuf = read_infile(infile);
@@ -453,6 +559,7 @@ main(int argc, char **argv)
                error("%s", pcap_geterr(pd));
        if (dflag) {
                bpf_dump(&fcode, dflag);
+               pcap_close(pd);
                exit(0);
        }
        init_addrtoname(localnet, netmask);
@@ -460,8 +567,10 @@ main(int argc, char **argv)
        (void)setsignal(SIGTERM, cleanup);
        (void)setsignal(SIGINT, cleanup);
        /* Cooperate with nohup(1) */
+#ifndef WIN32  
        if ((oldhandler = setsignal(SIGHUP, cleanup)) != SIG_DFL)
                (void)setsignal(SIGHUP, oldhandler);
+#endif /* WIN32 */
 
        if (pcap_setfilter(pd, &fcode) < 0)
                error("%s", pcap_geterr(pd));
@@ -486,11 +595,13 @@ main(int argc, char **argv)
                (void)setsignal(SIGINFO, requestinfo);
 #endif
        }
+#ifndef WIN32
        if (RFileName == NULL) {
                (void)fprintf(stderr, "%s: listening on %s\n",
                    program_name, device);
                (void)fflush(stderr);
        }
+#endif /* WIN32 */
        if (pcap_loop(pd, cnt, printer, pcap_userdata) < 0) {
                (void)fprintf(stderr, "%s: pcap_loop: %s\n",
                    program_name, pcap_geterr(pd));
@@ -528,8 +639,10 @@ info(register int verbose)
                (void)fprintf(stderr, "pcap_stats: %s\n", pcap_geterr(pd));
                return;
        }
+
        if (!verbose)
                fprintf(stderr, "%s: ", program_name);
+
        (void)fprintf(stderr, "%d packets received by filter", stat.ps_recv);
        if (!verbose)
                fputs(", ", stderr);
@@ -623,6 +736,31 @@ default_print_unaligned(register const u_char *cp, register u_int length)
        }
 }
 
+#ifdef WIN32
+       /*
+        * XXX - there should really be libpcap calls to get the version
+        * number as a string (the string would be generated from #defines
+        * at run time, so that it's not generated from string constants
+        * in the library, as, on many UNIX systems, those constants would
+        * be statically linked into the application executable image, and
+        * would thus reflect the version of libpcap on the system on
+        * which the application was *linked*, not the system on which it's
+        * *running*.
+        *
+        * That routine should be documented, unlike the "version[]"
+        * string, so that UNIX vendors providing their own libpcaps
+        * don't omit it (as a couple of vendors have...).
+        *
+        * Packet.dll should perhaps also export a routine to return the
+        * version number of the Packet.dll code, to supply the
+        * "Wpcap_version" information on Windows.
+        */
+       char WDversion[]="current-cvs.tcpdump.org";
+       char version[]="current-cvs.tcpdump.org";
+       char pcap_version[]="current-cvs.tcpdump.org";
+       char Wpcap_version[]="3.0 alpha";
+#endif
+
 /*
  * By default, print the packet out in hex.
  */
@@ -648,10 +786,23 @@ usage(void)
        extern char version[];
        extern char pcap_version[];
 
+#ifdef WIN32
+       (void)fprintf(stderr, "%s version %s, based on tcpdump version %s\n", program_name, WDversion, version);
+       (void)fprintf(stderr, "WinPcap version %s, based on libpcap version %s\n",Wpcap_version, pcap_version);
+#else  
        (void)fprintf(stderr, "%s version %s\n", program_name, version);
        (void)fprintf(stderr, "libpcap version %s\n", pcap_version);
+#endif /* WIN32 */
        (void)fprintf(stderr,
-"Usage: %s [-aAdeflnNOpqRStuvxX] [ -c count ] [ -C file_size ]\n", program_name);
+#ifdef WIN32
+"Usage: %s [-aAdDeflnNOpqRStuvxX] [-B size] [-c count] [ -C file_size ]\n", program_name);
+#else /* WIN32 */
+#ifdef HAVE_PCAP_FINDALLDEVS
+"Usage: %s [-aAdDeflnNOpqRStuvxX] [-c count] [ -C file_size ]\n", program_name);
+#else /* HAVE_PCAP_FINDALLDEVS */
+"Usage: %s [-aAdeflnNOpqRStuvxX] [-c count] [ -C file_size ]\n", program_name);
+#endif /* HAVE_PCAP_FINDALLDEVS */
+#endif /* WIN32 */
        (void)fprintf(stderr,
 "\t\t[ -F file ] [ -i interface ] [ -r file ] [ -s snaplen ]\n");
        (void)fprintf(stderr,