setopt: add CURLOPT_CURLU

Allows an application to pass in a pre-parsed URL via a URL handle.

Closes #3227

libcurl: stop reading from paused transfers

In the transfer loop it would previously not acknwledge the pause bit
and continue until drained or loop ended.

Closes #3240

Curl_follow: accept non-supported schemes for "fake" redirects

When not actually following the redirect and the target URL is only
stored for later retrieval, curl always accepted "non-s

Curl_follow: accept non-supported schemes for "fake" redirects

When not actually following the redirect and the target URL is only
stored for later retrieval, curl always accepted "non-supported"
schemes. This was a regression from 46e164069d1a5230.

Reported-by: Brad King
Fixes #3210
Closes #3215

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Fix for compiling with lwIP (3)

lwIP on Windows does not have a WSAIoctl() function.
But it do have a SO_SNDBUF option to lwip_setsockopt(). But it currently does nothing.

Curl_follow: return better errors on URL problems

... by making the converter function global and accessible.

Closes #3153

Curl_follow: remove remaining free(newurl)

Follow-up to 05564e750e8f0c. This function no longer frees the passed-in
URL.

Reported-by: Michael Kaufmann
Bug: https://github.co

Curl_follow: remove remaining free(newurl)

Follow-up to 05564e750e8f0c. This function no longer frees the passed-in
URL.

Reported-by: Michael Kaufmann
Bug: https://github.com/curl/curl/commit/05564e750e8f0c79016c680f301ce251e6e86155#commitcomm
ent-30985666

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multi: avoid double-free

Curl_follow() no longer frees the string. Make sure it happens in the
caller function, like we normally handle allocations.

This bug was introduced with

multi: avoid double-free

Curl_follow() no longer frees the string. Make sure it happens in the
caller function, like we normally handle allocations.

This bug was introduced with the use of the URL API internally, it has
never been in a release version

Reported-by: Dario Weißer
Closes #3149

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Curl_follow: Always free the passed new URL

Closes #3124

transfer: fix typo in comment

Curl_retry_request: fix memory leak

Detected by OSS-Fuzz

Bug: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=10648
Closes #3042

url: use the URL API internally as well

... to make it a truly unified URL parser.

Closes #3017

URL-API

See header file and man pages for API. All documented API details work
and are tested in the 1560 test case.

Closes #2842

CURLOPT_UPLOAD_BUFFERSIZE: set upload buffer size

This is step 3 of #2888.

Fixes #2888
Closes #2896

all: s/int/size_t cleanup

Assisted-by: Rikard Falkeborn

Closes #2922

curl-compilers: enable -Wimplicit-fallthrough=4 for GCC

This enables level 4 instead of the default level 3, which of the
currently used comments only allows /* FALLTHROUGH */ to silence

curl-compilers: enable -Wimplicit-fallthrough=4 for GCC

This enables level 4 instead of the default level 3, which of the
currently used comments only allows /* FALLTHROUGH */ to silence the
warning.

Closes https://github.com/curl/curl/pull/2747

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upload: change default UPLOAD_BUFSIZE to 64KB

To make uploads significantly faster in some circumstances.

Part 2 of #2888
Closes #2892

upload: allocate upload buffer on-demand

Saves 16KB on the easy handle for operations that don't need that
buffer.

Part 1 of #2888

windows: follow up to the buffer-tuning 1ba1dba7

Somehow I didn't include the amended version of the previous fix. This
is the missing piece.

Pointed-out-by: Viktor Szakats

windows: implement send buffer tuning

Significantly enhances upload performance on modern Windows versions.

Bug: https://curl.haxx.se/mail/lib-2018-07/0080.html
Closes #2762

windows: implement send buffer tuning

Significantly enhances upload performance on modern Windows versions.

Bug: https://curl.haxx.se/mail/lib-2018-07/0080.html
Closes #2762
Fixes #2224

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HTTP: Don't attempt to needlessly decompress redirect body

This change fixes a regression where redirect body would needlessly be
decompressed even though it was to be ignored anyway. As

HTTP: Don't attempt to needlessly decompress redirect body

This change fixes a regression where redirect body would needlessly be
decompressed even though it was to be ignored anyway. As it happens this
causes secondary issues since there appears to be a bug in apache2 that
it in certain conditions generates a corrupt zlib response. The
regression was created by commit:
dbcced8e32b50c068ac297106f0502ee200a1ebd

Discovered-by: Harry Sintonen
Closes #2798

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Curl_debug: remove dead printhost code

The struct field is never set (since 5e0d9aea3) so remove the use of it
and remove the connectdata pointer from the prototype.

Reported-by

Curl_debug: remove dead printhost code

The struct field is never set (since 5e0d9aea3) so remove the use of it
and remove the connectdata pointer from the prototype.

Reported-by: Tejas
Bug: https://curl.haxx.se/mail/lib-2018-06/0054.html
Closes #2647

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cppcheck: fix warnings

- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

cppcheck: fix warnings

- Get rid of variable that was generating false positive warning
(unitialized)

- Fix issues in tests

- Reduce scope of several variables all over

etc

Closes #2631

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setup_transfer: deal with both sockets being -1

Detected by Coverity; CID 1435559. Follow-up to f8d608f38d00. It would
index the array with -1 if neither index was a socket.

transfer: don't unset writesockfd on setup of multiplexed conns

Curl_setup_transfer() can be called to setup a new individual transfer
over a multiplexed connection so it shouldn't unset

transfer: don't unset writesockfd on setup of multiplexed conns

Curl_setup_transfer() can be called to setup a new individual transfer
over a multiplexed connection so it shouldn't unset writesockfd.

Bug: #2520
Closes #2549

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URL: fix ASCII dependency in strcpy_url and strlen_url

Commit 3c630f9b0af097663a64e5c875c580aa9808a92b partially reverted the
changes from commit dd7521bcc1b7a6fcb53c31f9bd1192fcc884bd56

URL: fix ASCII dependency in strcpy_url and strlen_url

Commit 3c630f9b0af097663a64e5c875c580aa9808a92b partially reverted the
changes from commit dd7521bcc1b7a6fcb53c31f9bd1192fcc884bd56 because of
the problem that strcpy_url() was modified unilaterally without also
modifying strlen_url(). As a consequence strcpy_url() was again
depending on ASCII encoding.

This change fixes strlen_url() and strcpy_url() in parallel to use a
common host-encoding independent criterion for deciding whether an URL
character must be %-escaped.

Closes #2535

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