rsvp: fetch a 32-bit quantity into a 32-bit variable.

[tcpdump] / print-null.c

diff --git a/print-null.c b/print-null.c
index 166f777dee2b24b660950fbd201b7ef171308c4f..f2ea96e2f73a9ce389bc52e4066c3d1e751838f5 100644 (file)
--- a/print-null.c
+++ b/print-null.c
@@ -19,18 +19,21 @@
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#define NETDISSECT_REWORKED
+/* \summary: BSD loopback device printer */
+
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
-#include <tcpdump-stdinc.h>
+#include "netdissect-stdinc.h"
 
 #include <string.h>
 
-#include "interface.h"
+#include "netdissect.h"
+#include "extract.h"
 #include "af.h"
 
+
 /*
  * The DLT_NULL packet header is 4 bytes long. It contains a host-byte-order
  * 32-bit integer that specifies the family, e.g. AF_INET.
@@ -51,18 +54,18 @@
 #define        SWAPLONG(y) \
 ((((y)&0xff)<<24) | (((y)&0xff00)<<8) | (((y)&0xff0000)>>8) | (((y)>>24)&0xff))
 
-static inline void
-null_hdr_print(netdissect_options *ndo, u_int family, u_int length)
+static void
+null_hdr_print(netdissect_options *ndo, uint32_t family, u_int length)
 {
        if (!ndo->ndo_qflag) {
-               ND_PRINT((ndo, "AF %s (%u)",
-                       tok2str(bsd_af_values,"Unknown",family),family));
+               ND_PRINT("AF %s (%u)",
+                       tok2str(bsd_af_values,"Unknown",family),family);
        } else {
-               ND_PRINT((ndo, "%s",
-                       tok2str(bsd_af_values,"Unknown AF %u",family)));
+               ND_PRINT("%s",
+                       tok2str(bsd_af_values,"Unknown AF %u",family));
        }
 
-       ND_PRINT((ndo, ", length %u: ", length));
+       ND_PRINT(", length %u: ", length);
 }
 
 /*
@@ -71,19 +74,22 @@ null_hdr_print(netdissect_options *ndo, u_int family, u_int length)
  * 'h->len' is the length of the packet off the wire, and 'h->caplen'
  * is the number of bytes actually captured.
  */
-u_int
+void
 null_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char *p)
 {
        u_int length = h->len;
        u_int caplen = h->caplen;
-       u_int family;
+       uint32_t family;
 
+       ndo->ndo_protocol = "null";
        if (caplen < NULL_HDRLEN) {
-               ND_PRINT((ndo, "[|null]"));
-               return (NULL_HDRLEN);
+               ndo->ndo_ll_header_length += caplen;
+               nd_print_trunc(ndo);
+               return;
        }
+       ndo->ndo_ll_header_length += NULL_HDRLEN;
 
-       memcpy((char *)&family, (char *)p, sizeof(family));
+       family = GET_HE_U_4(p);
 
        /*
         * This isn't necessarily in our host byte order; if this is
@@ -116,7 +122,7 @@ null_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char
                break;
 
        case BSD_AFNUM_ISO:
-               isoclns_print(ndo, p, length, caplen);
+               isoclns_print(ndo, p, length);
                break;
 
        case BSD_AFNUM_APPLETALK:
@@ -135,12 +141,5 @@ null_if_print(netdissect_options *ndo, const struct pcap_pkthdr *h, const u_char
                        ND_DEFAULTPRINT(p, caplen);
        }
 
-       return (NULL_HDRLEN);
+       return;
 }
-
-/*
- * Local Variables:
- * c-style: whitesmith
- * c-basic-offset: 8
- * End:
- */