diff options
Diffstat (limited to 'util/wireshark')
| -rw-r--r-- | util/wireshark/minetest.lua | 33 |
1 files changed, 2 insertions, 31 deletions
diff --git a/util/wireshark/minetest.lua b/util/wireshark/minetest.lua index dd0507c3e..d954c7597 100644 --- a/util/wireshark/minetest.lua +++ b/util/wireshark/minetest.lua @@ -299,7 +299,7 @@ do t:add(f_length, buffer(2,2)) local textlen = buffer(2,2):uint() if minetest_check_length(buffer, 4 + textlen*2, t) then - t:add(f_message, minetest_convert_utf16(buffer(4, textlen*2), "Converted chat message")) + t:add(f_message, buffer(4, textlen*2), buffer(4, textlen*2):ustring()) end end } @@ -1379,35 +1379,6 @@ function minetest_check_length(tvb, min_len, t) end end --- Takes a Tvb or TvbRange (i.e. part of a packet) that --- contains a UTF-16 string and returns a TvbRange containing --- string converted to ASCII. Any characters outside the range --- 0x20 to 0x7e are replaced by a question mark. --- Parameter: tvb: Tvb or TvbRange that contains the UTF-16 data --- Parameter: name: will be the name of the newly created Tvb. --- Returns: New TvbRange containing the ASCII string. --- TODO: Handle surrogates (should only produce one question mark) --- TODO: Remove this when Wireshark supports UTF-16 strings natively. -function minetest_convert_utf16(tvb, name) - local hex, pos, char - hex = "" - for pos = 0, tvb:len() - 2, 2 do - char = tvb(pos, 2):uint() - if (char >= 0x20 and char <= 0x7e) or char == 0x0a then - hex = hex .. string.format(" %02x", char) - else - hex = hex .. " 3F" - end - end - if hex == "" then - -- This is a hack to avoid a failed assertion in tvbuff.c - -- (function: ensure_contiguous_no_exception) - return ByteArray.new("00"):tvb(name):range(0,0) - else - return ByteArray.new(hex):tvb(name):range() - end -end - -- Decodes a variable-length string as ASCII text -- t_textlen, t_text should be the ProtoFields created by minetest_field_helper -- alternatively t_text can be a ProtoField.string and t_textlen can be nil @@ -1438,7 +1409,7 @@ function minetest_decode_helper_utf16(tvb, t, lentype, offset, f_textlen, f_text end local textlen = tvb(offset, n):uint() * 2 if minetest_check_length(tvb, offset + n + textlen, t) then - t:add(f_text, minetest_convert_utf16(tvb(offset + n, textlen), "UTF-16 text")) + t:add(f_text, tvb(offset + n, textlen), tvb(offset + n, textlen):ustring()) return offset + n + textlen end end |