Handle very large -f files by rejecting them.

[tcpdump] / missing / dlnames.c

diff --git a/missing/dlnames.c b/missing/dlnames.c
index 9dececf6787c1c2d6f3ce3706f127431404027b4..16bfcf7940c2efd1950140c807a6725915d654fa 100644 (file)
--- a/missing/dlnames.c
+++ b/missing/dlnames.c
@@ -31,112 +31,114 @@
  * SUCH DAMAGE.
  */
 
-
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#include <tcpdump-stdinc.h>
-
-
-#include "interface.h"
-
-#ifndef lint
-static const char rcsid[] _U_ =
-    "@(#) $Header: /tcpdump/master/tcpdump/missing/dlnames.c,v 1.3 2003-11-15 00:39:47 guy Exp $ (LBL)";
-#endif
+#include <netdissect-stdinc.h>
 
 #include <pcap.h>
 #include <string.h>
 
 #include "pcap-missing.h"
+#include "ascii_strcasecmp.h"
 
 struct dlt_choice {
        const char *name;
+       const char *description;
        int     dlt;
 };
 
-#define DLT_CHOICE(code) { #code, code }
-#define DLT_CHOICE_SENTINEL { NULL, 0 }
+#define DLT_CHOICE(code, description) { #code, description, code }
+#define DLT_CHOICE_SENTINEL { NULL, NULL, 0 }
 
 static struct dlt_choice dlt_choices[] = {
-       DLT_CHOICE(DLT_ARCNET),
-       DLT_CHOICE(DLT_EN10MB),
-       DLT_CHOICE(DLT_SLIP),
+       DLT_CHOICE(DLT_NULL, "BSD loopback"),
+       DLT_CHOICE(DLT_EN10MB, "Ethernet"),
+       DLT_CHOICE(DLT_IEEE802, "Token ring"),
+       DLT_CHOICE(DLT_ARCNET, "ARCNET"),
+       DLT_CHOICE(DLT_SLIP, "SLIP"),
+       DLT_CHOICE(DLT_PPP, "PPP"),
+       DLT_CHOICE(DLT_FDDI, "FDDI"),
+       DLT_CHOICE(DLT_ATM_RFC1483, "RFC 1483 IP-over-ATM"),
+       DLT_CHOICE(DLT_RAW, "Raw IP"),
 #ifdef DLT_SLIP_BSDOS
-       DLT_CHOICE(DLT_SLIP_BSDOS),
+       DLT_CHOICE(DLT_SLIP_BSDOS, "BSD/OS SLIP"),
 #endif
-       DLT_CHOICE(DLT_NULL),
-#ifdef DLT_LOOP
-       DLT_CHOICE(DLT_LOOP),
+#ifdef DLT_PPP_BSDOS
+       DLT_CHOICE(DLT_PPP_BSDOS, "BSD/OS PPP"),
 #endif
-       DLT_CHOICE(DLT_PPP),
-#ifdef DLT_C_HDLC
-       DLT_CHOICE(DLT_C_HDLC),
+#ifdef DLT_ATM_CLIP
+       DLT_CHOICE(DLT_ATM_CLIP, "Linux Classical IP-over-ATM"),
 #endif
 #ifdef DLT_PPP_SERIAL
-       DLT_CHOICE(DLT_PPP_SERIAL),
+       DLT_CHOICE(DLT_PPP_SERIAL, "PPP over serial"),
 #endif
 #ifdef DLT_PPP_ETHER
-       DLT_CHOICE(DLT_PPP_ETHER),
+       DLT_CHOICE(DLT_PPP_ETHER, "PPPoE"),
 #endif
-#ifdef DLT_PPP_BSDOS
-       DLT_CHOICE(DLT_PPP_BSDOS),
+#ifdef DLT_C_HDLC
+       DLT_CHOICE(DLT_C_HDLC, "Cisco HDLC"),
 #endif
-       DLT_CHOICE(DLT_FDDI),
-       DLT_CHOICE(DLT_IEEE802),
 #ifdef DLT_IEEE802_11
-       DLT_CHOICE(DLT_IEEE802_11),
+       DLT_CHOICE(DLT_IEEE802_11, "802.11"),
 #endif
-#ifdef DLT_PRISM_HEADER
-       DLT_CHOICE(DLT_PRISM_HEADER),
-#endif
-#ifdef DLT_IEEE802_11_RADIO
-       DLT_CHOICE(DLT_IEEE802_11_RADIO),
+#ifdef DLT_FRELAY
+       DLT_CHOICE(DLT_FRELAY, "Frame Relay"),
 #endif
-       DLT_CHOICE(DLT_ATM_RFC1483),
-#ifdef DLT_ATM_CLIP
-       DLT_CHOICE(DLT_ATM_CLIP),
+#ifdef DLT_LOOP
+       DLT_CHOICE(DLT_LOOP, "OpenBSD loopback"),
 #endif
-#ifdef DLT_SUNATM
-       DLT_CHOICE(DLT_SUNATM),
+#ifdef DLT_ENC
+       DLT_CHOICE(DLT_ENC, "OpenBSD encapsulated IP"),
 #endif
-       DLT_CHOICE(DLT_RAW),
 #ifdef DLT_LINUX_SLL
-       DLT_CHOICE(DLT_LINUX_SLL),
+       DLT_CHOICE(DLT_LINUX_SLL, "Linux cooked"),
 #endif
 #ifdef DLT_LTALK
-       DLT_CHOICE(DLT_LTALK),
+       DLT_CHOICE(DLT_LTALK, "Localtalk"),
+#endif
+#ifdef DLT_PFLOG
+       DLT_CHOICE(DLT_PFLOG, "OpenBSD pflog file"),
+#endif
+#ifdef DLT_PRISM_HEADER
+       DLT_CHOICE(DLT_PRISM_HEADER, "802.11 plus Prism header"),
 #endif
 #ifdef DLT_IP_OVER_FC
-       DLT_CHOICE(DLT_IP_OVER_FC),
+       DLT_CHOICE(DLT_IP_OVER_FC, "RFC 2625 IP-over-Fibre Channel"),
 #endif
-#ifdef DLT_FRELAY
-       DLT_CHOICE(DLT_FRELAY),
+#ifdef DLT_SUNATM
+       DLT_CHOICE(DLT_SUNATM, "Sun raw ATM"),
+#endif
+#ifdef DLT_IEEE802_11_RADIO
+       DLT_CHOICE(DLT_IEEE802_11_RADIO, "802.11 plus radio information header"),
+#endif
+#ifdef DLT_ARCNET_LINUX
+       DLT_CHOICE(DLT_ARCNET_LINUX, "Linux ARCNET"),
+#endif
+#ifdef DLT_LINUX_IRDA
+       DLT_CHOICE(DLT_LINUX_IRDA, "Linux IrDA"),
 #endif
-
 #ifdef DLT_LANE8023
-       DLT_CHOICE(DLT_LANE8023),
+       DLT_CHOICE(DLT_LANE8023, "Linux 802.3 LANE"),
 #endif
 #ifdef DLT_CIP
-       DLT_CHOICE(DLT_CIP),
+       DLT_CHOICE(DLT_CIP, "Linux Classical IP-over-ATM"),
 #endif
 #ifdef DLT_HDLC
-       DLT_CHOICE(DLT_HDLC),
-#endif
-#ifdef DLT_PFLOG
-       DLT_CHOICE(DLT_PFLOG),
+       DLT_CHOICE(DLT_HDLC, "Cisco HDLC"),
 #endif
        DLT_CHOICE_SENTINEL
 };
 
+#ifndef HAVE_PCAP_DATALINK_NAME_TO_VAL
 int
 pcap_datalink_name_to_val(const char *name)
 {
        int i;
 
        for (i = 0; dlt_choices[i].name != NULL; i++) {
-               if (strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1,
+               if (ascii_strcasecmp(dlt_choices[i].name + sizeof("DLT_") - 1,
                    name) == 0)
                        return (dlt_choices[i].dlt);
        }
@@ -154,3 +156,16 @@ pcap_datalink_val_to_name(int dlt)
        }
        return (NULL);
 }
+#endif
+
+const char *
+pcap_datalink_val_to_description(int dlt)
+{
+       int i;
+
+       for (i = 0; dlt_choices[i].name != NULL; i++) {
+               if (dlt_choices[i].dlt == dlt)
+                       return (dlt_choices[i].description);
+       }
+       return (NULL);
+}