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<title>SNAC(04,0B) client message error or data</title>
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<td><b><font color="white">SNAC(04,0B) </font></b></td>
<td width=70% align=right><b><font color="white">CLI_ICBM_SENDxACK </font></b></td>
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Client send this snac as reply to <a href="snac_04_07.html">SNAC(04,07)</a>.
Server transfer it to client without changes, but only if its format is valid.
This snac also used for auto-messages (away message/busy message/chat message/etc).
<br><br>
First dword in msg-id cookies is actually the computer uptime in milliseconds
(ie GetTickCount(), at least this is what the ICQ Lite and the other official
clients I have tested uses).<br><br>
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<td width=169> 00 04</td>
<td width=5> </td>
<td>word</td>
<td width=5> </td>
<td width=55%>SNAC family</td>
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<td> 00 0B</td>
<td> </td>
<td>word</td>
<td> </td>
<td>SNAC subtype</td>
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<td> 00 00</td>
<td> </td>
<td>word</td>
<td> </td>
<td>SNAC flags</td>
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<td> xx xx xx xx</td>
<td> </td>
<td>dword</td>
<td> </td>
<td>SNAC request-id</td>
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<td width=169> xx xx xx xx<br> xx xx xx xx</td>
<td width=5> </td>
<td valign=top>qword</td>
<td width=5> </td>
<td width=55% valign=top>msg-id cookie</td>
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<td colspan=5> </td>
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<td> xx xx</td>
<td> </td>
<td>word</td>
<td> </td>
<td>message channel (see table below)</td>
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<td> xx</td>
<td> </td>
<td>byte</td>
<td> </td>
<td>screenname string length</td>
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<td> xx ..</td>
<td> </td>
<td>string</td>
<td> </td>
<td>screenname string</td>
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<td> 00 03</td>
<td> </td>
<td>word</td>
<td> </td>
<td>reason code (1 - unsupported channel, 2 - busted payload, 3 - channel specific)</td>
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If channel is supported, here is channel-specific data
(see references below).
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<td bgcolor=#f0f0f0 valign=top width=15%><b> <font size=2><a href="snac_04_0b_ch1.html">Channel 1</a> </b></font></td>
<td bgcolor=#f0f0f0 valign=top> Channel 1 data format (plain-text messages)</td>
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<td bgcolor=#f0f0f0 valign=top><b> <font size=2><a href="snac_04_0b_ch2.html">Channel 2</a> </b></font></td>
<td bgcolor=#f0f0f0 valign=top> Channel 2 data format (rtf messages, rendezvous)</td>
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<br>Example SNAC dump with flap header:
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<font size=3><pre style="font-size: 13px">
2A 02 54 28 00 6E 00 04 00 0B 00 00 00 00 00 0B *.T(.n..........
F3 3A C1 0C 70 18 00 00 00 02 07 36 32 31 38 38 .:..p......62188
39 35 00 03 1B 00 07 00 00 00 00 00 00 00 00 00 95..............
00 00 00 00 00 00 00 00 00 00 03 00 00 00 00 07 ................
00 0E 00 07 00 00 00 00 00 00 00 00 00 00 00 00 ................
00 E9 03 00 00 00 00 1B 00 55 73 65 72 20 69 73 .........User is
20 63 75 72 72 65 6E 74 6C 79 20 4F 63 63 75 70 currently Occup
69 65 64 00 ied.
</pre></font>
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