ignore pcap files which are generated from .puu files.

[tcpdump] / tcpdump.c

diff --git a/tcpdump.c b/tcpdump.c
index b4ea020cd4d29ef71d5810f10e4ed8b5ac1fc02e..be01643100f4e911d502e97f9c8d8c44ba2a98ed 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 1.213 2003-08-06 06:49:41 guy Exp $ (LBL)";
+    "@(#) $Header: /tcpdump/master/tcpdump/tcpdump.c,v 1.216 2003-11-04 07:29:16 guy Exp $ (LBL)";
 #endif
 
 /*
@@ -118,6 +118,7 @@ RETSIGTYPE requestinfo(int);
 #endif
 
 static void info(int);
+static u_int packets_captured;
 
 /* Length of saved portion of packet. */
 int snaplen = DEFAULT_SNAPLEN;
@@ -316,16 +317,10 @@ main(int argc, char **argv)
        pcap_if_t *devpointer;
        int devnum;
 #endif
+       int status;
 #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;
+       u_int UserBufferSize = 1000000;
+       if(wsockinit() != 0) return 1;
 #endif /* WIN32 */
 
        cnt = -1;
@@ -641,10 +636,22 @@ main(int argc, char **argv)
                                error("%s", ebuf);
                }
 #ifdef WIN32
-               PrintCapBegins(program_name,device);
+               if(IsTextUnicode(device,  
+                       wcslen((short*)device),                // Device always ends with a double \0, so this way to determine its 
+                                                                                                       // length should be always valid
+                       NULL))
+               {
+                       fprintf(stderr, "%s: listening on %ws\n", program_name, device);
+               }
+               else
+               {
+                       fprintf(stderr, "%s: listening on %s\n", program_name, device);
+               }
+
+               fflush(stderr); 
 #endif /* WIN32 */
                *ebuf = '\0';
-               pd = pcap_open_live(device, snaplen, !pflag, 1000, ebuf);
+               pd = pcap_open_live(device, snaplen, !pflag, 10000, ebuf);
                if (pd == NULL)
                        error("%s", ebuf);
                else if (*ebuf)
@@ -770,32 +777,71 @@ main(int argc, char **argv)
                (void)fflush(stderr);
        }
 #endif /* WIN32 */
-       if (pcap_loop(pd, cnt, callback, pcap_userdata) < 0) {
+       status = pcap_loop(pd, cnt, callback, pcap_userdata);
+       if (WFileName == NULL) {
+               /*
+                * We're printing packets.  Flush the printed output,
+                * so it doesn't get intermingled with error output.
+                */
+               if (status == -2) {
+                       /*
+                        * We got interrupted, so perhaps we didn't
+                        * manage to finish a line we were printing.
+                        * Print an extra newline, just in case.
+                        */
+                       putchar('\n');
+               }
+               (void)fflush(stdout);
+       }
+       if (status == -1) {
+               /*
+                * Error.  Report it.
+                */
                (void)fprintf(stderr, "%s: pcap_loop: %s\n",
                    program_name, pcap_geterr(pd));
-               cleanup(0);
-               pcap_close(pd);
-               exit(1);
        }
-       if (RFileName == NULL)
+       if (RFileName == NULL) {
+               /*
+                * We're doing a live capture.  Report the capture
+                * statistics.
+                */
                info(1);
+       }
        pcap_close(pd);
-       exit(0);
+       exit(status == -1 ? 1 : 0);
 }
 
 /* make a clean exit on interrupts */
 static RETSIGTYPE
-cleanup(int signo)
+cleanup(int signo _U_)
 {
-
-       /* Can't print the summary if reading from a savefile */
+#ifdef HAVE_PCAP_BREAKLOOP
+       /*
+        * We have "pcap_breakloop()"; use it, so that we do as little
+        * as possible in the signal handler (it's probably not safe
+        * to do anything with standard I/O streams in a signal handler -
+        * the ANSI C standard doesn't say it is).
+        */
+       pcap_breakloop(pd);
+#else
+       /*
+        * We don't have "pcap_breakloop()"; this isn't safe, but
+        * it's the best we can do.  Print the summary if we're
+        * not reading from a savefile - i.e., if we're doing a
+        * live capture - and exit.
+        */
        if (pd != NULL && pcap_file(pd) == NULL) {
+               /*
+                * We got interrupted, so perhaps we didn't
+                * manage to finish a line we were printing.
+                * Print an extra newline, just in case.
+                */
+               putchar('\n');
                (void)fflush(stdout);
-               putc('\n', stderr);
                info(1);
        }
-       if (signo)
-               exit(0);
+       exit(0);
+#endif
 }
 
 static void
@@ -811,6 +857,11 @@ info(register int verbose)
        if (!verbose)
                fprintf(stderr, "%s: ", program_name);
 
+       (void)fprintf(stderr, "%u packets captured", packets_captured);
+       if (!verbose)
+               fputs(", ", stderr);
+       else
+               putc('\n', stderr);
        (void)fprintf(stderr, "%d packets received by filter", stat.ps_recv);
        if (!verbose)
                fputs(", ", stderr);
@@ -854,6 +905,8 @@ dump_packet_and_trunc(u_char *user, const struct pcap_pkthdr *h, const u_char *s
        static uint cnt = 2;
        char *name;
 
+       ++packets_captured;
+
        ++infodelay;
 
        dump_info = (struct dump_info *)user;
@@ -891,6 +944,8 @@ dump_packet_and_trunc(u_char *user, const struct pcap_pkthdr *h, const u_char *s
 static void
 dump_packet(u_char *user, const struct pcap_pkthdr *h, const u_char *sp)
 {
+       ++packets_captured;
+
        ++infodelay;
 
        pcap_dump(user, h, sp);
@@ -910,6 +965,8 @@ print_packet(u_char *user, const struct pcap_pkthdr *h, const u_char *sp)
        struct print_info *print_info;
        u_int hdrlen;
 
+       ++packets_captured;
+
        ++infodelay;
        ts_print(&h->ts);