[reSIProcate] Crash in ares on deleting SipStack

[Byron Campen]

	I did a little digging, and saw some people running into issues  
where strdup() was using a different version of the malloc library  
than free() did (due to link errors). Does this sound like something  
you might be encountering here? If strdup is using different malloc  
code than the free called later, this would explain your heap- 
corruption.

Best regards,
Byron Campen
> We’re experiencing a heap corruption / crash in Ares when deleting  
> the SipStack object running on Windows XP and compiled with Visual  
> Studio 2003.
>
>
>
> In ares_destroy.c, ares_destroy_internal, around line 45 …
>
>
>
>  free(channel->lookups)
>
>
>
> … causes a heap corruption report in the debugger.
>
>
>
> Changing the strdup to _strdup in ares_init.c where “bf” or the  
> supplied string are duplicated into ->lookups resolves the problem.
>
>
>
> Has anyone else experienced this problem?
>
>
>
> Thanks,
>
>
> Steve Coule
>
> Envox UK Ltd
>
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> resiprocate-devel at list.resiprocate.org
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