[Pidgin] #16482: Fix buffer overflow in gg_handle_reading_hub

[Pidgin]

#16482: Fix buffer overflow in gg_handle_reading_hub
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 Reporter:  alex.henrie  |      Owner:
     Type:  patch        |     Status:  new
Milestone:               |  Component:  Gadu-Gadu
  Version:  2.10.11      |   Keywords:
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 If sscanf extracts a string of length 128, it sets host[128] to 0,
 overflowing into int port.

 From cppcheck:

  [libpurple/protocols/gg/lib/events.c:1051]: (error) Width 128 given in
 format string (no. 2) is larger than destination buffer 'host[128]', use
 %127s to prevent overflowing it.

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Ticket URL: <https://developer.pidgin.im/ticket/16482>
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