[Pidgin] #3876: Yahoo Messenger messages silently truncated to first 800 characters

[Pidgin]

#3876: Yahoo Messenger messages silently truncated to first 800 characters
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  Reporter:  dandv   |       Owner:  marv 
      Type:  patch   |      Status:  new  
  Priority:  minor   |   Milestone:       
 Component:  Yahoo!  |     Version:  2.2.2
Resolution:          |    Keywords:       
   Pending:  0       |  
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Comment (by rekkanoryo):

 I have two comments on this patch:

   1. I don't think we should allow sending a message longer than what the
 official clients allow.  We mimic the official clients as much as
 possible; doing something like this just makes it more obvious to the
 server that we're not an official client.  This should be changed to the
 800 character limit the official client imposes.
   1. I see you use `strlen()` to determine if the message is too large.
 `strlen()` is not multibyte character-safe.  Is the limit 800
 ''characters'' or 800 ''bytes''?  Given that the official client limits to
 800 characters, I'd imagine the limit is 946 bytes or 800 characters,
 whichever is smaller for the specific message string, but I think that
 needs some exploration.

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Ticket URL: <http://developer.pidgin.im/ticket/3876#comment:3>
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