problem with my CURLINFO_PRIMARY_IP fix from October 7th that caused a NULL
  pointer read. I also took the opportunity to clean up this logic (storing of
  the connection's IP address) somewhat as we had it stored in two different
  places and ways previously and they are now unified.

and not sprintf().

for it.

instruction in the comments to use that instead! Original mail:
http://curl.haxx.se/mail/lib-2008-11/0019.html

while investigating the issue in http://curl.haxx.se/mail/lib-2008-09/0262.html
I'm hesitant to fix them because I have no way of testing the result.

done!

with ipv6-enabled c-ares

  in man resolv.conf:

  causes round robin selection of nameservers from among those listed.  This
  has the effect of spreading the query load among all listed servers, rather
  than having all clients try the first listed server first every time.

  You can enable it with ARES_OPT_ROTATE

convoluted, compiler dependant and in some cases even build target dependat.

risk getting postponed for 7.19.2.

implementation from lib/hostip6.c to lib/curl_addrinfo.c
and prototypes from lib/hostip.h to lib/curl_addrinfo.h

Use a wrapper function to call system's getaddrinfo().

but I'm not in the mood to fight nroff right now...

curl_easy_pause() during a chunky upload. Reported by Steve Roskowski.

 and CHECK_FUNC_GETADDRINFO_UNFREEABLE_AI_CANONNAME
internal to CHECK_FUNC_GETADDRINFO