system thinks free(NULL) is badness)

take a CURLcode as a second argument, that is non-zero when Curl_done()
is called after an error was returned from Curl_do() (or similar).

to deliver

instead of using snprintf() + strdup().

defined (which it never is atm).

Now, we can focus on making 'runtests -t [num]' work on all test cases and
we should never leak nor crash.

we typecast on invoke.

causes xlc and gcc act differently on AIX.

James Bursa only modified by me.

  the resolv.conf file, the first entry encountered is processed and used as
  the search list. According to the manual pages for both Linux, Solaris and
  Tru64, the last entry of either a domain or a search field is used.

memory.h is included everywhere for this.

Also some minor edits.

that list in case something goes wrong in the function and we must bail out.
Courtesy of the torture testing.

accordingly