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[PATH] check ip callback

From: Alexey Pesternikov <>
Date: Wed, 12 Sep 2007 15:38:13 -0700


Sometimes the library user needs to verify address against some sort of
black list. Parsing and resolving address before calling libcurl would be a
really bad idea. It could be time consuming without local DNS cache and,
worst of all, leave a possibility for avoiding the blacklist using specially
crafted DNS server using the race condition.

We just implemented a new callback exactly for that. The callback is called
for every resolved IP address, and callback function function must return -1
if bad address or 0 if ok.

Please see patch against 7.16.4 attached.
Any comments are appreciatred.

Thank you,

Received on 2007-09-13