]> The Tcpdump Group git mirrors - tcpdump/blobdiff - print-frag6.c
Fix spaces
[tcpdump] / print-frag6.c
index b8c49fd986946b5866011f6d1856e546909d6db7..618e93bbcb25d1b764bde88ddbc4c0e9279c973b 100644 (file)
  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
+/* \summary: IPv6 fragmentation header printer */
+
 #ifdef HAVE_CONFIG_H
-#include "config.h"
+#include <config.h>
 #endif
 
-#ifdef INET6
-
-#include <tcpdump-stdinc.h>
+#include "netdissect-stdinc.h"
 
-#include "ip6.h"
 #include "netdissect.h"
 #include "extract.h"
 
+#include "ip6.h"
+
 int
-frag6_print(netdissect_options *ndo, register const u_char *bp, register const u_char *bp2)
+frag6_print(netdissect_options *ndo, const u_char *bp, const u_char *bp2)
 {
-       register const struct ip6_frag *dp;
-       register const struct ip6_hdr *ip6;
+       const struct ip6_frag *dp;
+       const struct ip6_hdr *ip6;
 
+       ndo->ndo_protocol = "frag6";
        dp = (const struct ip6_frag *)bp;
        ip6 = (const struct ip6_hdr *)bp2;
 
-       ND_TCHECK(dp->ip6f_offlg);
+       ND_TCHECK_SIZE(dp);
 
        if (ndo->ndo_vflag) {
-               ND_PRINT((ndo, "frag (0x%08x:%d|%ld)",
-                      EXTRACT_32BITS(&dp->ip6f_ident),
-                      EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK,
-                      sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) -
-                              (long)(bp - bp2) - sizeof(struct ip6_frag)));
+               ND_PRINT("frag (0x%08x:%u|%u)",
+                      EXTRACT_BE_U_4(dp->ip6f_ident),
+                      EXTRACT_BE_U_2(dp->ip6f_offlg) & IP6F_OFF_MASK,
+                      (u_int)(sizeof(struct ip6_hdr) + EXTRACT_BE_U_2(ip6->ip6_plen) -
+                        (bp - bp2) - sizeof(struct ip6_frag)));
        } else {
-               ND_PRINT((ndo, "frag (%d|%ld)",
-                      EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK,
-                      sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) -
-                              (long)(bp - bp2) - sizeof(struct ip6_frag)));
+               ND_PRINT("frag (%u|%u)",
+                      EXTRACT_BE_U_2(dp->ip6f_offlg) & IP6F_OFF_MASK,
+                      (u_int)(sizeof(struct ip6_hdr) + EXTRACT_BE_U_2(ip6->ip6_plen) -
+                        (bp - bp2) - sizeof(struct ip6_frag)));
        }
 
        /* it is meaningless to decode non-first fragment */
-       if ((EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK) != 0)
+       if ((EXTRACT_BE_U_2(dp->ip6f_offlg) & IP6F_OFF_MASK) != 0)
                return -1;
        else
        {
-               ND_PRINT((ndo, " "));
+               ND_PRINT(" ");
                return sizeof(struct ip6_frag);
        }
 trunc:
-       ND_PRINT((ndo, "[|frag]"));
+       nd_print_trunc(ndo);
        return -1;
 }
-#endif /* INET6 */