"@(#) Copyright (c) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997\n\
The Regents of the University of California. All rights reserved.\n";
static const char rcsid[] =
- "@(#) $Header: /tcpdump/master/tcpdump/tcpdump.c,v 1.141 2000-01-15 07:42:32 itojun Exp $ (LBL)";
+ "@(#) $Header: /tcpdump/master/tcpdump/tcpdump.c,v 1.154 2000-09-29 04:58:53 guy Exp $ (LBL)";
#endif
/*
#include <unistd.h>
#include <ctype.h>
-#include <netinet/in_systm.h>
-#include <netinet/ip.h>
#include "interface.h"
#include "addrtoname.h"
int sflag = 0; /* use the libsmi to translate OIDs */
int Sflag; /* print raw TCP sequence numbers */
int tflag = 1; /* print packet arrival time */
+int uflag = 0; /* Print undecoded NFS handles */
int vflag; /* verbose */
int xflag; /* print packet in hex */
int Xflag; /* print packet in ascii as well as hex */
int32_t thiszone; /* seconds offset from gmt to local time */
-/* Externs */
-extern void bpf_dump(struct bpf_program *, int);
-
/* Forwards */
-RETSIGTYPE cleanup(int);
-extern __dead void usage(void) __attribute__((volatile));
+static RETSIGTYPE cleanup(int);
+static void usage(void) __attribute__((noreturn));
/* Length of saved portion of packet. */
int snaplen = DEFAULT_SNAPLEN;
int type;
};
+/*
+ * This table checks some DLT_* codes as well as checking PCAP_ENCAP_*
+ * codes, so that those DLT_* codes that aren't the same on all platforms
+ * (and thus don't have values identical to the values of the corresponding
+ * PCAP_ENCAP_* codes) are, at least, handled on the platform that wrote
+ * the capture file.
+ *
+ * (This may result in two identical entries in the table, if there's
+ * a DLT_* code defined to have the same value as the corresponding
+ * PCAP_ENCAP_* code. Those duplicate entries are harmless.)
+ */
static struct printer printers[] = {
- { ether_if_print, DLT_EN10MB },
- { ether_if_print, DLT_IEEE802 },
-#ifdef DLT_LANE8023
- { lane_if_print, DLT_LANE8023 },
+ /*
+ * PCAP_ENCAP_* codes that correspond to DLT_* codes whose values
+ * are the same on all platforms (the PCAP_ENCAP_* code values
+ * are the same as the DLT_* code values).
+ */
+ { null_if_print, PCAP_ENCAP_NULL },
+ { ether_if_print, PCAP_ENCAP_ETHERNET },
+ { token_if_print, PCAP_ENCAP_TOKEN_RING },
+ { sl_if_print, PCAP_ENCAP_SLIP },
+ { ppp_if_print, PCAP_ENCAP_PPP },
+ { fddi_if_print, PCAP_ENCAP_FDDI },
+
+ /*
+ * DLT_* codes that aren't the same on all platforms, or that
+ * aren't present on all platforms.
+ */
+#ifdef DLT_ATM_RFC1483
+ { atm_if_print, DLT_ATM_RFC1483 },
#endif
-#ifdef DLT_CIP
- { cip_if_print, DLT_CIP },
+#ifdef DLT_RAW
+ { raw_if_print, DLT_RAW },
#endif
- { sl_if_print, DLT_SLIP },
+#ifdef DLT_SLIP_BSDOS
{ sl_bsdos_if_print, DLT_SLIP_BSDOS },
- { ppp_if_print, DLT_PPP },
+#endif
+#ifdef DLT_PPP_BSDOS
{ ppp_bsdos_if_print, DLT_PPP_BSDOS },
- { fddi_if_print, DLT_FDDI },
- { null_if_print, DLT_NULL },
- { raw_if_print, DLT_RAW },
- { atm_if_print, DLT_ATM_RFC1483 },
-#ifdef DLT_CHDLC
- { chdlc_if_print, DLT_CHDLC },
#endif
+#ifdef DLT_CIP
+ { cip_if_print, DLT_CIP },
+#endif
+#ifdef DLT_ATM_CLIP
+ { cip_if_print, DLT_ATM_CLIP },
+#endif
+#ifdef DLT_LANE8023
+ { lane_if_print, DLT_LANE8023 },
+#endif
+#ifdef DLT_PPP_SERIAL
+ { ppp_hdlc_if_print, DLT_PPP_SERIAL },
+#endif
+
+ /*
+ * PCAP_ENCAP_* codes corresponding to DLT_* codes that aren't
+ * necessarily the same on all platforms, and PCAP_ENCAP_* codes
+ * for which there aren't DLT_* codes.
+ */
+ { atm_if_print, PCAP_ENCAP_ATM_RFC1483 },
+ { raw_if_print, PCAP_ENCAP_RAW },
+ { sl_bsdos_if_print, PCAP_ENCAP_SLIP_BSDOS },
+ { ppp_bsdos_if_print, PCAP_ENCAP_PPP_BSDOS },
+ { chdlc_if_print, PCAP_ENCAP_C_HDLC },
+ { cip_if_print, PCAP_ENCAP_ATM_CLIP },
+ { ppp_hdlc_if_print, PCAP_ENCAP_PPP_HDLC },
{ NULL, 0 },
};
if (type == p->type)
return p->f;
- error("unknown data link type 0x%x", type);
+ error("unknown data link type %d", type);
/* NOTREACHED */
}
else
program_name = argv[0];
- if (abort_on_misalignment(ebuf) < 0)
+ if (abort_on_misalignment(ebuf, sizeof(ebuf)) < 0)
error("%s", ebuf);
#ifdef LIBSMI
opterr = 0;
while (
- (op = getopt(argc, argv, "ac:deE:fF:i:lnNm:Opqr:Rs:StT:vw:xXY")) != EOF)
+ (op = getopt(argc, argv, "ac:deE:fF:i:lm:nNOpqr:Rs:StT:uvw:xXY")) != -1)
switch (op) {
case 'a':
Rflag = 0;
break;
- case 's':
- snaplen = atoi(optarg);
- if (snaplen <= 0)
+ case 's': {
+ char *end;
+
+ snaplen = strtol(optarg, &end, 0);
+ if (optarg == end || *end != '\0'
+ || snaplen < 0 || snaplen > 65535)
error("invalid snaplen %s", optarg);
+ else if (snaplen == 0)
+ snaplen = 65535;
break;
+ }
case 'S':
++Sflag;
packettype = PT_RTCP;
else if (strcasecmp(optarg, "snmp") == 0)
packettype = PT_SNMP;
+ else if (strcasecmp(optarg, "cnfp") == 0)
+ packettype = PT_CNFP;
else
error("unknown packet type `%s'", optarg);
break;
+ case 'u':
+ ++uflag;
+ break;
+
case 'v':
++vflag;
break;
}
/* make a clean exit on interrupts */
-RETSIGTYPE
+static RETSIGTYPE
cleanup(int signo)
{
struct pcap_stat stat;
void
default_print(register const u_char *bp, register u_int length)
{
- default_print_unaligned(bp, length);
+ default_print_unaligned(bp, length);
}
-__dead void
+static void
usage(void)
{
extern char version[];
(void)fprintf(stderr, "%s version %s\n", program_name, version);
(void)fprintf(stderr, "libpcap version %s\n", pcap_version);
(void)fprintf(stderr,
-"Usage: %s [-adeflnNOpqStvxX] [-c count] [ -F file ]\n", program_name);
+"Usage: %s [-adeflnNOpqStuvxX] [-c count] [ -F file ]\n", program_name);
(void)fprintf(stderr,
"\t\t[ -i interface ] [ -r file ] [ -s snaplen ]\n");
(void)fprintf(stderr,
projects / tcpdump / blobdiff