diff options
| author | Laurent Deniel <laurent.deniel@free.fr> | 1999-10-02 16:58:41 +0000 |
|---|---|---|
| committer | Laurent Deniel <laurent.deniel@free.fr> | 1999-10-02 16:58:41 +0000 |
| commit | 3d597048777b2fc444795b46e5d5024aa30462d1 (patch) | |
| tree | 15cc62f89564192d7de146807df8f77234ae3abe | |
| parent | 6269de2c37dc7e185a5351f6503ec9ab96ee5b22 (diff) | |
Check for truncated header.
svn path=/trunk/; revision=752
| -rw-r--r-- | packet-udp.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/packet-udp.c b/packet-udp.c index 4370715f76..f06d9e91b6 100644 --- a/packet-udp.c +++ b/packet-udp.c @@ -1,7 +1,7 @@ /* packet-udp.c * Routines for UDP packet disassembly * - * $Id: packet-udp.c,v 1.24 1999/09/14 08:06:23 guy Exp $ + * $Id: packet-udp.c,v 1.25 1999/10/02 16:58:41 deniel Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs <gerald@zing.org> @@ -174,7 +174,11 @@ dissect_udp(const u_char *pd, int offset, frame_data *fd, proto_tree *tree) { proto_tree *udp_tree; proto_item *ti; - /* To do: Check for {cap len,pkt len} < struct len */ + if (!BYTES_ARE_IN_FRAME(offset, sizeof(e_udphdr))) { + dissect_data(pd, offset, fd, tree); + return; + } + /* Avoids alignment problems on many architectures. */ memcpy(&uh, &pd[offset], sizeof(e_udphdr)); uh_sport = ntohs(uh.uh_sport); |