diff options
Diffstat (limited to 'lib/libpcap/gencode.c')
| -rw-r--r-- | lib/libpcap/gencode.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/lib/libpcap/gencode.c b/lib/libpcap/gencode.c index 0c7c049..3f237c1 100644 --- a/lib/libpcap/gencode.c +++ b/lib/libpcap/gencode.c @@ -20,7 +20,7 @@ */ #ifndef lint static char rcsid[] = - "@(#) $Header: gencode.c,v 1.55 94/06/20 19:07:53 leres Exp $ (LBL)"; + "@(#) $Header: /home/ncvs/src/lib/libpcap/gencode.c,v 1.1.1.1 1995/01/20 04:13:04 jkh Exp $ (LBL)"; #endif #include <sys/types.h> @@ -471,8 +471,8 @@ init_linktype(type) return; case DLT_NULL: - off_linktype = -1; - off_nl = 0; + off_linktype = 0; + off_nl = 4; return; case DLT_PPP: @@ -543,6 +543,15 @@ gen_linktype(proto) if (proto == ETHERTYPE_IP) proto = 0x0021; /* XXX - need ppp.h defs */ break; + + case DLT_NULL: + if (proto == ETHERTYPE_IP) { + proto = htonl(AF_INET); /* loopback & tun put */ + /* sa_family into */ + /* prepended word */ + return gen_cmp(off_linktype, BPF_W, (long)proto); + } + break; } return gen_cmp(off_linktype, BPF_H, (long)proto); } |
