X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/3d932490b826facb568937a1290910a1265267f5..fb8b947488c7f22b518de1df1a91e663dc7ab33c:/print-frag6.c diff --git a/print-frag6.c b/print-frag6.c index 4e5309e1..11e884b7 100644 --- a/print-frag6.c +++ b/print-frag6.c @@ -20,8 +20,8 @@ */ #ifndef lint -static const char rcsid[] = - "@(#) $Header: /tcpdump/master/tcpdump/print-frag6.c,v 1.14 2002-08-01 08:53:07 risso Exp $"; +static const char rcsid[] _U_ = + "@(#) $Header: /tcpdump/master/tcpdump/print-frag6.c,v 1.19 2003-11-19 00:36:07 guy Exp $"; #endif #ifdef HAVE_CONFIG_H @@ -38,6 +38,7 @@ static const char rcsid[] = #include "interface.h" #include "addrtoname.h" +#include "extract.h" int frag6_print(register const u_char *bp, register const u_char *bp2) @@ -56,21 +57,21 @@ frag6_print(register const u_char *bp, register const u_char *bp2) if (vflag) { printf("frag (0x%08x:%d|%ld)", - (u_int32_t)ntohl(dp->ip6f_ident), - ntohs(dp->ip6f_offlg & IP6F_OFF_MASK), - sizeof(struct ip6_hdr) + ntohs(ip6->ip6_plen) - + 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)); } else { printf("frag (%d|%ld)", - ntohs(dp->ip6f_offlg & IP6F_OFF_MASK), - sizeof(struct ip6_hdr) + ntohs(ip6->ip6_plen) - + EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK, + sizeof(struct ip6_hdr) + EXTRACT_16BITS(&ip6->ip6_plen) - (long)(bp - bp2) - sizeof(struct ip6_frag)); } #if 1 /* it is meaningless to decode non-first fragment */ - if (ntohs(dp->ip6f_offlg & IP6F_OFF_MASK) != 0) - return 65535; + if ((EXTRACT_16BITS(&dp->ip6f_offlg) & IP6F_OFF_MASK) != 0) + return -1; else #endif { @@ -79,7 +80,7 @@ frag6_print(register const u_char *bp, register const u_char *bp2) } trunc: fputs("[|frag]", stdout); - return 65535; + return -1; #undef TCHECK } #endif /* INET6 */