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tn5250: fix an endless loop, exit when offset is not incremented 

Bug: 10596
Change-Id: I64509aa49fce4893dee4e7a74a560e09a98830f6
Reviewed-on: https://code.wireshark.org/review/4878
Reviewed-by: Martin Kaiser <wireshark@kaiser.cx>
Tested-by: Martin Kaiser <wireshark@kaiser.cx>
This commit is contained in:
Martin Kaiser 2014-10-20 22:37:51 +02:00
parent a2508bda19
commit bc27265781
1 changed files with 2 additions and 0 deletions
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2
epan/dissectors/packet-tn5250.c
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@ -4654,6 +4654,8 @@ dissect_write_structured_field(proto_tree *tn5250_tree, tvbuff_t *tvb, gint offs
length = tvb_get_guint8(tvb,offset);
proto_tree_add_item(tn5250_tree, hf_tn5250_length, tvb, offset,
1, ENC_BIG_ENDIAN);
if (length==0)
break;
proto_tree_add_item(tn5250_tree, hf_tn5250_dpt_ec, tvb, offset,
length, ENC_EBCDIC|ENC_NA);
offset += length;