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2023-01-27 05:16:57 -08:00

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<html>
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<title>SNAC(04,06) client send-message command</title>
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<td><b><font color="white">SNAC(04,06)&nbsp;</font></b></td>
<td width=70% align=right><b><font color="white">CLI_SEND_ICBM&nbsp;</font></b></td>
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<br>
Client use this snac to send message thru server. Within the ICBM
(Inter-Client Basic Message) types (family 4), a channel is defined.
Each channel represents a different kind of message.<br><br>
Channel 1 is used for what would commonly be called an "instant message" (plain
text messages). Channel 2 is used for complex messages (rtf, utf8) and
negotiating "rendezvous". These transactions end in something more
complex happening, such as a chat invitation, or a file transfer.
Channel 3 is used for chat messages (not in the same family as
these channels). Channel 4 is used for various ICQ messages.
Examples are normal messages, URLs, and old-style
authorization.<br><br>
This snac contain one fixed part (target uin, channel, msg-id cookie)
and <b>channel-dependend</b> tlv-chain.<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>&nbsp;00 04</td>
<td width=5>&nbsp;</td>
<td>word</td>
<td width=5>&nbsp;</td>
<td width=55%>SNAC family</td>
</tr>
<tr>
<td>&nbsp;00 06</td>
<td>&nbsp;</td>
<td>word</td>
<td>&nbsp;</td>
<td>SNAC subtype</td>
</tr>
<tr>
<td>&nbsp;00 00</td>
<td>&nbsp;</td>
<td>word</td>
<td>&nbsp;</td>
<td>SNAC flags</td>
</tr>
<tr>
<td>&nbsp;xx xx xx xx</td>
<td>&nbsp;</td>
<td>dword</td>
<td>&nbsp;</td>
<td>SNAC request-id</td>
</tr>
</table>
</td></tr>
<tr><td bgcolor=#E9E9E9>
<table width=100% cellSpacing=0 cellPadding=0 align=center border=0>
<tr>
<td width=20>&nbsp;</td>
<td width=147>&nbsp;xx xx xx xx<br>&nbsp;xx xx xx xx</td>
<td>&nbsp;</td>
<td valign=top>qword</td>
<td>&nbsp;</td>
<td width=55% valign=top>msg-id cookie</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;xx xx</td>
<td>&nbsp;</td>
<td>word</td>
<td>&nbsp;</td>
<td>message channel (see table below)</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;xx</td>
<td>&nbsp;</td>
<td>byte</td>
<td>&nbsp;</td>
<td>screenname string length</td>
</tr>
<tr>
<td>&nbsp;</td>
<td>&nbsp;xx ..</td>
<td>&nbsp;</td>
<td>string</td>
<td>&nbsp;</td>
<td>screenname string</td>
</tr>
</table>
<!-- TLV 0xXX -->
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<tr><td height=8 colspan=3></td></tr>
<tr><td width=20> </td>
<td>
<table width=600 bgcolor=darkgreen cellSpacing=0 cellPadding=0 border=0><tr><td>
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<table width=600 cellSpacing=0 cellPadding=0 align=center border=0>
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<td width=147>&nbsp;xx xx</td>
<td width=5>&nbsp;</td>
<td>word</td>
<td width=5>&nbsp;</td>
<td width=55%>TLV.Type(0xXX) - icbm info</td>
</tr>
<tr>
<td>&nbsp;xx xx</td>
<td>&nbsp;</td>
<td>word</td>
<td>&nbsp;</td>
<td>TLV.Length</td>
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<td width=147>&nbsp;....</td>
<td width=5>&nbsp;</td>
<td width=17%>....</td>
<td width=5>&nbsp;</td>
<td width=55%>....</td>
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</td><td width=5> </td></tr>
<tr><td height=5 colspan=3> </td></tr>
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<td width=147>&nbsp;</td>
<td width=23%>....</td>
<td width=17% valign=top>&nbsp;....</td>
<td valign=top>....</td>
</tr>
</table>
<!-- TLV 0xXX -->
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<tr><td height=8 colspan=3></td></tr>
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<td>
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<table width=600 cellSpacing=0 cellPadding=0 align=center border=0>
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<td width=147>&nbsp;xx xx</td>
<td width=5>&nbsp;</td>
<td>word</td>
<td width=5>&nbsp;</td>
<td width=55%>TLV.Type(0xXX) - icbm info</td>
</tr>
<tr>
<td>&nbsp;xx xx</td>
<td>&nbsp;</td>
<td>word</td>
<td>&nbsp;</td>
<td>TLV.Length</td>
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</table>
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<tr><td bgcolor=#f9f9f9>
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<td width=147>&nbsp;....</td>
<td width=5>&nbsp;</td>
<td>....</td>
<td width=5>&nbsp;</td>
<td width=55%>....</td>
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</td><td width=5> </td></tr>
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<br>
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<table width=100% cellSpacing=1 cellPadding=1 align=center border=0>
<tr>
<td bgcolor=#f0f0f0 valign=top width=15%><b>&nbsp;<font size=2><a href="snac_04_06_ch1.html">Channel 1</a>&nbsp;&nbsp;</b></font></td>
<td bgcolor=#f0f0f0 valign=top>&nbsp;Channel 1 message format (plain-text messages)</td>
</tr>
<tr>
<td bgcolor=#f0f0f0 valign=top><b>&nbsp;<font size=2><a href="snac_04_06_ch2.html">Channel 2</a>&nbsp;&nbsp;</b></font></td>
<td bgcolor=#f0f0f0 valign=top>&nbsp;Channel 2 message format (rtf messages, rendezvous)</td>
</tr>
<tr>
<td bgcolor=#f0f0f0 valign=top><b>&nbsp;<font size=2><a href="snac_04_06_ch4.html">Channel 4</a>&nbsp;&nbsp;</b></font></td>
<td bgcolor=#f0f0f0 valign=top>&nbsp;Channel 4 message format (typed old-style messages)</td>
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<br>
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<table width=100% cellSpacing=2 cellPadding=0 border=0><tr><td bgcolor=#E9E9E9 ><table width=100% cellSpacing=0 cellPadding=0 border=0>
<tr><td align=center valign=middle><b><font color=black size=2>&nbsp;
<a href="index.html" target="_top">Main</a> |
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<a href="sequences.html" target="_top">Sequences</a> |
<a href="lists.html" target="_top">Misc</a> |
<a href="changes.html" target="_top">Changes</a> |
<a href="credits.html" target="_top">Credits</a> |
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&nbsp;</font></b></td></tr></table>
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