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| author | Ronnie Sahlberg <ronnie_sahlberg@ozemail.com.au> | 2003-07-09 10:21:45 +0000 |
|---|---|---|
| committer | Ronnie Sahlberg <ronnie_sahlberg@ozemail.com.au> | 2003-07-09 10:21:45 +0000 |
| commit | 0e4218f45e6e32909e4f4666ea34295cd8fc8a49 (patch) | |
| tree | 18f8d1c32fb0c0286d00d34375f7a42dd318dadc /packet-h245.c | |
| parent | 249b06f6e2771babd8cb74d4459d13a2ec874587 (diff) | |
| download | wireshark-0e4218f45e6e32909e4f4666ea34295cd8fc8a49.tar.gz wireshark-0e4218f45e6e32909e4f4666ea34295cd8fc8a49.tar.bz2 wireshark-0e4218f45e6e32909e4f4666ea34295cd8fc8a49.zip | |
Make ethereal decode normal unconstrained INTEGER types.
svn path=/trunk/; revision=8007
Diffstat (limited to 'packet-h245.c')
| -rw-r--r-- | packet-h245.c | 50 |
1 files changed, 41 insertions, 9 deletions
diff --git a/packet-h245.c b/packet-h245.c index 620eb94e41..fae4990bce 100644 --- a/packet-h245.c +++ b/packet-h245.c @@ -94,7 +94,7 @@ proper helper routines * with great support with testing and providing capturefiles * from Martin Regner * - * $Id: packet-h245.c,v 1.12 2003/07/09 09:45:42 sahlberg Exp $ + * $Id: packet-h245.c,v 1.13 2003/07/09 10:21:45 sahlberg Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs <gerald@ethereal.com> @@ -1969,11 +1969,45 @@ DEBUG_ENTRY("dissect_per_boolean"); +/* we currently only handle integers up to 32 bits in length. */ guint32 -dissect_per_integer(tvbuff_t *tvb, guint32 offset, packet_info *pinfo, proto_tree *tree, int hf_index _U_, guint32 *value _U_, proto_item **item _U_) +dissect_per_integer(tvbuff_t *tvb, guint32 offset, packet_info *pinfo, proto_tree *tree, int hf_index, gint32 *value, proto_item **item) { -DEBUG_ENTRY("dissect_per_integer"); -NOT_DECODED_YET("dissect_per_integer"); + guint32 i, length; + gint32 val; + proto_item *it=NULL; + + /* 12.2.6 b */ + offset=dissect_per_length_determinant(tvb, offset, pinfo, tree, -1, &length); + /* gassert here? */ + if(length>8){ +NOT_DECODED_YET("too long integer"); + length=8; + } + + val=0; + for(i=0;i<length;i++){ + if(i==0){ + if(tvb_get_guint8(tvb, offset>>3)&0x80){ + /* negative number */ + val=0xffffffff; + } else { + /* positive number */ + val=0; + } + } + val=(val<<8)|tvb_get_guint8(tvb,offset>>3); + offset+=8; + } + it=proto_tree_add_int(tree, hf_index, tvb, (offset>>3)-(length+1), length+1, val); + + if(item){ + *item=it; + } + if(value){ + *value=val; + } + return offset; } @@ -2167,9 +2201,7 @@ DEBUG_ENTRY("dissect_per_constrained_integer"); offset+=8; } val+=min; - if(hf_index!=-1){ - it=proto_tree_add_uint(tree, hf_index, tvb, (offset>>3)-(num_bytes+1), num_bytes+1, val); - } + it=proto_tree_add_uint(tree, hf_index, tvb, (offset>>3)-(num_bytes+1), num_bytes+1, val); if(item){ *item=it; } @@ -22529,10 +22561,10 @@ proto_register_h245(void) { "containedThread", "h245.containedThread", FT_UINT32, BASE_DEC, NULL, 0, "containedThread value", HFILL }}, { &hf_h245_t38FaxMaxDatagram, - { "t38FaxMaxDatagram", "h245.t38FaxMaxDatagram", FT_UINT32, BASE_DEC, + { "t38FaxMaxDatagram", "h245.t38FaxMaxDatagram", FT_INT32, BASE_DEC, NULL, 0, "t38FaxMaxDatagram value", HFILL }}, { &hf_h245_t38FaxMaxBuffer, - { "t38FaxMaxBuffer", "h245.t38FaxMaxBuffer", FT_UINT32, BASE_DEC, + { "t38FaxMaxBuffer", "h245.t38FaxMaxBuffer", FT_INT32, BASE_DEC, NULL, 0, "t38FaxMaxBuffer value", HFILL }}, { &hf_h245_expirationTime, { "expirationTime", "h245.expirationTime", FT_UINT32, BASE_DEC, |