[Pidgin] #1251: chatroom owning on AOL

[Pidgin]

#1251: chatroom owning on AOL
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 Reporter:  echoline                |       Owner:  markdoliner
     Type:  patch                   |      Status:  new
Milestone:  Patches Needing Review  |   Component:  AIM
  Version:  2.0                     |  Resolution:
 Keywords:  oscar aol own chatroom  |
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Comment (by QuLogic):

 Some (code-only, not AIM/AOL-specific) review:
 * I don't understand the first checks in `aim_chat_ban` and
 `aim_chat_unban`. Would `od` or `conn` ever be NULL? Do other similar
 functions check them also (I didn't look.) Also, you check whether `sn` is
 NULL after you've already used it in the call to `strlen`.
 * You need to use `g_free` on `screenname`, not `free`.

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Ticket URL: <https://developer.pidgin.im/ticket/1251#comment:9>
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