X-Git-Url: https://git.tcpdump.org/tcpdump/blobdiff_plain/c672f002763b3a4fc30ca229e57f50d3b2e6d766..00c74e34be5c224ec7b18ae763d4db381fa3e7f0:/print-frag6.c diff --git a/print-frag6.c b/print-frag6.c index 533d730d..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 1.13 2001-09-17 21:58:02 fenner 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 @@ -30,13 +30,7 @@ static const char rcsid[] = #ifdef INET6 -#include -#include -#include -#include - - -#include +#include #include @@ -44,6 +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) @@ -62,21 +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 { @@ -85,7 +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 */