diff options
| author | Michael Mann <mmann78@netscape.net> | 2015-03-01 10:46:31 -0500 |
|---|---|---|
| committer | Anders Broman <a.broman58@gmail.com> | 2015-03-03 05:12:10 +0000 |
| commit | 43fd878c4e4d726dd4604ade4c0548eed783c4f3 (patch) | |
| tree | 0f891fdab1f18e128ae1cd49b400c4ff74aed82d /epan/crc16-tvb.c | |
| parent | 091d2db3d71aa30b6d0c7cc664349797da3ef865 (diff) | |
Add "seed" capabilities to crc16_x25_ccitt (now crc16_x25_ccitt_seed) so we can remove CRC algorithm calculation in packet-assa_r3.c.
Change-Id: I3143800f6ff922a309f5506d9acbc2c4293363b7
Reviewed-on: https://code.wireshark.org/review/7490
Reviewed-by: Jeff Morriss <jeff.morriss.ws@gmail.com>
Petri-Dish: Jeff Morriss <jeff.morriss.ws@gmail.com>
Reviewed-by: Anders Broman <a.broman58@gmail.com>
Diffstat (limited to 'epan/crc16-tvb.c')
| -rw-r--r-- | epan/crc16-tvb.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/epan/crc16-tvb.c b/epan/crc16-tvb.c index 3a2bb48c71..b20d759c50 100644 --- a/epan/crc16-tvb.c +++ b/epan/crc16-tvb.c @@ -55,7 +55,17 @@ guint16 crc16_x25_ccitt_tvb(tvbuff_t *tvb, guint len) tvb_ensure_bytes_exist(tvb, 0, len); /* len == -1 not allowed */ buf = tvb_get_ptr(tvb, 0, len); - return crc16_x25_ccitt(buf, len); + return crc16_x25_ccitt_seed(buf, len, 0xFFFF); +} + +guint16 crc16_r3_ccitt_tvb(tvbuff_t *tvb, int offset, guint len) +{ + const guint8 *buf; + + tvb_ensure_bytes_exist(tvb, offset, len); /* len == -1 not allowed */ + buf = tvb_get_ptr(tvb, offset, len); + + return crc16_x25_ccitt_seed(buf, len, 0); } guint16 crc16_ccitt_tvb_offset(tvbuff_t *tvb, guint offset, guint len) |