memory leaks etc.

code fine on ares!

to memdebug the ares stuff as well.

same channel during the whole curl handle's life until curl_easy_cleanup().

is a valid pointer, but instead always depend on the passed-in dns pointer.
This happens to be NULL when the connection is re-used...

and memset

to properly work with SOCKS5 proxies. I also included some ascii art describing
the SOCKS5 response, as RFC1928 describes. Jeff provided details in bug
report #741841 and here: http://curl.haxx.se/mail/lib-2004-02/0181.html

seems to correct some host cache screw-ups I could reproduce.

SO_BINDTODEVICE is present, to prevent compiler warnings about the variable

Removed some dates/names in the comments.

Curl_write in CURLcode, to keep the picky compilers happy

more" when the previous approach. Known to work on Linux, possibly on other
platforms as well.

sure this doesn't get weird on 64bit archs.

archs, also no longer typecast pointers to ints as that is a nono on 64bit
systems.