Fixes FTP wildcard parsing when done over a number of read buffers.

Regression from f786d1f14

Reported-by: wncboy on github
Fixes #2445
Closes #2526

This reverts commit abbc8457d85aca74b7cfda1d394b0844932b2934.

Caused fuzzer problems on travis not seen when this was a PR!

Fixes FTP wildcard parsing when doing over a number of read buffers.

Regression from f786d1f14

Reported-by: wncboy on github
Fixes #2445
Closes #2519

... to make them better spell out what they're for.

No longer allocate the curl_llist head struct for lists separately.

Removes 17 (15%) tiny allocations in a normal "curl localhost" invoke.

closes #1381

curl_printf.h defines printf to curl_mprintf, etc. This can cause
problems with external headers which may use
__attribute__((format(printf, ...))) markers etc.

To avoid that they cause problems with system includes, we include
curl_printf.h after any system headers. That makes the three last
headers to always be, and we keep them in this order:

 curl_printf.h
 curl_memory.h
 memdebug.h

None of them include system headers, they all do funny #defines.

Reported-by: David Benjamin

Fixes #743

The function "free" is documented in the way that no action shall occur for
a passed null pointer. It is therefore not needed that a function caller
repeats a corresponding check.
http://stackoverflow.com/questions/18775608/free-a-null-pointer-anyway-or-check-first

This issue was fixed by using the software Coccinelle 1.0.0-rc24.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>

... and as a consequence, introduce curl_printf.h with that re-define
magic instead and make all libcurl code use that instead.