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  14    <H1>[IRCServices Coding] akills</H1>
  15     <B>v13 at priest.com</B>
  16     <A HREF="mailto:ircservices-coding%40ircservices.za.net?Subject=%5BIRCServices%20Coding%5D%20akills&In-Reply-To="
  17        TITLE="[IRCServices Coding] akills">v13 at priest.com
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  19     <I>Mon Dec 17 05:47:22 PST 2001</I>
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  34 <PRE>As of bahamut 1.4.29, s_serv.c -&gt; m_akill() (in bahamut ircd sources)
  35 has:
  36
  37     /* whether or not we have a length, this is still a temporary akill */
  38     /* if the length is over a day, or nonexistant, we call this a 'forever'
  39      * akill and set -&gt;hold to 0xFFFFFFFF to indicate such
  40      * this is a hack to prevent
  41      * forever akills from being removed unless by an explicit /rehash */
  42     if(length&gt;86400 || !length)
  43         aconf-&gt;hold=0xFFFFFFFF;
  44     else
  45         aconf-&gt;hold=timeset+length;
  46
  47 which means that akills whith expire time greater than a day, will never
  48 expire, unless explicity removed. This way, netsplits may prevent akills
  49 to be removed from servers, when services send the RAKILL.
  50
  51 This can be bypassed, by forcing services to send AKILLs, with expire
  52 time less than 86400 by
  53 changing (in operserv/akill.c send_akill() ):
  54
  55 call_callback_5(module, cb_send_akill,
  56                 username, host,
  57                 akill-&gt;expires,
  58                 akill-&gt;who,
  59                 make_reason(AkillReason, akill));
  60
  61 to:
  62
  63 call_callback_5(module, cb_send_akill,
  64                 username, host,
  65                 ( (akill-&gt;expires - now) &gt; 86399 ? now + 86399 : akill-&gt;expires),
  66                 akill-&gt;who,
  67                 make_reason(AkillReason, akill));
  68
  69 or better, change the callback in the bahamut protocol module:
  70
  71 static int do_send_akill(const char *username, const char *host,
  72                          time_t expires, const char *who, const char *reason)
  73 {
  74     time_t now = time(NULL);
  75
  76     send_cmd(ServerName, &quot;AKILL %s %s %ld %s %ld :%s&quot;, host, username,
  77              (expires &amp;&amp; expires &gt; now) ? expires - now : 0,
  78              who ? who : &quot;&lt;unknown&gt;&quot;, now, reason);
  79     return 1;
  80 }
  81
  82 to:
  83
  84 static int do_send_akill(const char *username, const char *host,
  85                          time_t expires, const char *who, const char *reason)
  86 {
  87         time_t now = time(NULL);
  88
  89         if (expires&gt;now)
  90         {
  91                 expires-=now;
  92                 if (expires&gt;=86400)
  93                         expires=86399;
  94         }
  95
  96         send_cmd(ServerName, &quot;AKILL %s %s %ld %s %ld :%s&quot;, host, username,
  97                 expires, who ? who : &quot;&lt;unknown&gt;&quot;, now, reason);
  98         return 1;
  99 }
 100
 101 This way akills for 5 days, will be send up to 5 times on each server
 102 (Removed after 86399 seconds and send again when a matching user tries ti use
 103 the server). This should not add much overhead and non-expiring akills will
 104 not be affected.
 105
 106 &lt;&lt;V13&gt;&gt;
 107
 108 </PRE>
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