Alexey Pesternikov introduced CURLOPT_OPENSOCKETFUNCTION and

CURLOPT_OPENSOCKETDATA to set a callback that allows an application to replace
the socket() call used by libcurl. It basically allows the app to change
address, protocol or whatever of the socket. (I also did some whitespace
indent/cleanups in lib/url.c which kind of hides some of these changes, sorry
for mixing those in.)

CHANGES

@@ -7,6 +7,11 @@
                                   Changelog
 
 Daniel S (3 October 2007)
+- Alexey Pesternikov introduced CURLOPT_OPENSOCKETFUNCTION and
+  CURLOPT_OPENSOCKETDATA to set a callback that allows an application to
+  replace the socket() call used by libcurl. It basically allows the app to
+  change address, protocol or whatever of the socket.
+
 - I renamed the CURLE_SSL_PEER_CERTIFICATE error code to
   CURLE_PEER_FAILED_VERIFICATION (standard CURL_NO_OLDIES style), and made
   this return code get used by the previous SSH MD5 fingerprint check in case