Formatter for udtrace (https://git.gnumonks.org/udtrace)
First capture Unix domain socket traffic with udtrace, for example list all X11 windows:
LD_PRELOAD=./libudtrace.so xwininfo -tree -root 2> trace.txt
Then we can format it to more readable hex dump:
% python main.py trace.txt
For example X11 Unix domain socket handshake:
---- Packet #1: fd:3 type:writev W len: 12 (0x0c)
6c 00 0b 00 00 00 12 00 10 00 00 00 | lØ.ØØØ.Ø .ØØØ
---- Packet #2: fd:3 type:writev W len: 18 (0x12)
4d 49 54 2d 4d 41 47 49 43 2d 43 4f 4f 4b 49 45 | MIT-MAGI C-COOKIE
2d 31 | -1
---- Packet #3: fd:3 type:writev W len: 2 (0x02)
00 00 | ØØ
---- Packet #4: fd:3 type:writev W len: 16 (0x10)
7b 4c 57 8b e9 1d ca 6e 32 c3 74 03 07 17 1e a1 | {LW.é.Ên 2Ãt....¡
---- Packet #5: fd:3 type:recv R len: 8 (0x08)
01 00 0b 00 00 00 4b 03 | .Ø.ØØØK.
---- Packet #6: fd:3 type:recv R len: 2047 (0x7ff)
8c a5 b8 00 00 00 40 09 ff ff 1f 00 00 01 00 00 | .¥¸ØØØ@⇥ ÿÿ.ØØ.ØØ
14 00 ff ff 01 07 00 00 20 20 08 ff 00 00 00 00 | .Øÿÿ..ØØ .ÿØØØØ
54 68 65 20 58 2e 4f 72 67 20 46 6f 75 6e 64 61 | The X.Or g Founda
74 69 6f 6e 01 01 20 00 00 00 00 00 04 08 20 00 | tion.. Ø ØØØØ.. Ø
--- snipped ---