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Follow-up to 9c1806ae
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- Disable warning C4127 "conditional expression is constant" globally
in curl_setup.h for when building with Microsoft's compiler.
This mainly affects building with the Visual Studio project files found
in the projects dir.
Prior to this change the cmake and winbuild build systems already
disabled 4127 globally for when building with Microsoft's compiler.
Also, 4127 was already disabled for all build systems in the limited
circumstance of the WHILE_FALSE macro which disabled the warning
specifically for while(0). This commit removes the WHILE_FALSE macro and
all other cruft in favor of disabling globally in curl_setup.
Background:
We have various macros that cause 0 or 1 to be evaluated, which would
cause warning C4127 in Visual Studio. For example this causes it:
#define Curl_resolver_asynch() 1
Full behavior is not clearly defined and inconsistent across versions.
However it is documented that since VS 2015 Update 3 Microsoft has
addressed this somewhat but not entirely, not warning on while(true) for
example.
Prior to this change some C4127 warnings occurred when I built with
Visual Studio using the generated projects in the projects dir.
Closes https://github.com/curl/curl/pull/4658
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- Retrieve LibreSSL runtime version when supported (>= 2.7.1).
For earlier versions we continue to use the compile-time version.
Ref: https://man.openbsd.org/OPENSSL_VERSION_NUMBER.3
Closes https://github.com/curl/curl/pull/2425
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- In all code call Curl_winapi_strerror instead of Curl_strerror when
the error code is known to be from Windows GetLastError.
Curl_strerror prefers CRT error codes (errno) over Windows API error
codes (GetLastError) when the two overlap. When we know the error code
is from GetLastError it is more accurate to prefer the Windows API error
messages.
Reported-by: Richard Alcock
Fixes https://github.com/curl/curl/issues/4550
Closes https://github.com/curl/curl/pull/4581
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... so that failures in the global init function don't count as a
working init and it can then be called again.
Reported-by: Paul Groke
Fixes #4636
Closes #4653
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... and use internally. This function will return TIME_T_MAX instead of
failure if the parsed data is found to be larger than what can be
represented. TIME_T_MAX being the largest value curl can represent.
Reviewed-by: Daniel Gustafsson
Reported-by: JanB on github
Fixes #4152
Closes #4651
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Fixes #4643
Closes #4652
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Follow-up from 66e21520f
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The WHILE_FALSE construction is used to avoid compiler warnings in
macro constructions. This fixes a few instances where it was not
used in order to keep the code consistent.
Closes #4649
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
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Given that this is performed by the NTLM code there is no need to
perform the initialisation in the HTTP layer. This also keeps the
initialisation the same as the SASL based protocols and also fixes a
possible compilation issue if both NSS and SSPI were to be used as
multiple SSL backends.
Reviewed-by: Kamil Dudka
Closes #3935
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The regexp looking for assignments within conditions was too greedy
and matched a too long string in the case of multiple conditionals
on the same line. This is basically only a problem in single line
macros, and the code which exemplified this was essentially:
do { if((x) != NULL) { x = NULL; } } while(0)
..where the final parenthesis of while(0) matched the regexp, and
the legal assignment in the block triggered the warning. Fix by
making the regexp less greedy by matching for the tell-tale signs
of the if statement ending.
Also remove the one occurrence where the warning was disabled due
to a construction like the above, where the warning didn't apply
when fixed.
Closes #4647
Reviewed-by: Daniel Stenberg <daniel@haxx.se>
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--etag-compare and --etag-save
Suggested-by: Paul Hoffman
Fixes #4277
Closes #4543
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... to easier allow additional DNS transactions.
Closes #4629
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... makes it skip the examples and other stuff we don't neeed.
Closes #4646
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ERR_error_string(NULL) should never be called. It places the error in a
global buffer, which is not thread-safe. Use ERR_error_string_n with a
local buffer instead.
Closes #4645
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Suggested-by: Peter Wu
Fixes #4637
Closes #4640
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Follow-up to commit 74f441c6d31.
This should fix test 1175 when run via the daily source tarballs.
Closes https://github.com/curl/curl/pull/4638
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Attempt to unpause a busy read in the CURLOPT_XFERINFOFUNCTION.
When uploading from stdin in non-blocking mode, a delay in reading
the stream (EAGAIN) causes curl to pause sending data
(CURL_READFUNC_PAUSE). Prior to this change, a busy read was
detected and unpaused only in the CURLOPT_WRITEFUNCTION handler.
This change performs the same busy read handling in a
CURLOPT_XFERINFOFUNCTION handler.
Fixes #2051
Closes #4599
Reported-by: bdry on github
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(also for PROGRESSFUNCTION)
By returning this value from the callback, the internal progress
function call is still called afterward.
Closes #4599
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Closes #4597
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Reviewed-by: Gergely Nagy
Closes #4635
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This commit adds curl_multi_wakeup() which was previously in the TODO
list under the curl_multi_unblock name.
On some platforms and with some configurations this feature might not be
available or can fail, in these cases a new error code
(CURLM_WAKEUP_FAILURE) is returned from curl_multi_wakeup().
Fixes #4418
Closes #4608
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Prior to this change schannel ignored --tls-max (CURL_SSLVERSION_MAX_
macros) when --tlsv1 (CURL_SSLVERSION_TLSv1) or default TLS
(CURL_SSLVERSION_DEFAULT), using a max of TLS 1.2 always.
Closes https://github.com/curl/curl/pull/4633
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Ref: https://github.com/curl/curl/pull/4607
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- Generate VQUIC and VSSH filenames in Visual Studio project files.
Prior to this change generated Visual Studio project configurations that
enabled SSH did not build properly. Broken since SSH files were moved to
lib/vssh 3 months ago in 5b2d703.
Fixes https://github.com/curl/curl/issues/4492
Fixes https://github.com/curl/curl/issues/4630
Closes https://github.com/curl/curl/pull/4607
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- Disable the extra sensitivity except in debug builds (--enable-debug).
- Improve SYSCALL error message logic in ossl_send and ossl_recv so that
"No error" / "Success" socket error text isn't shown on SYSCALL error.
Prior to this change 0ab38f5 (precedes 7.67.0) increased the sensitivity
of OpenSSL's SSL_ERROR_SYSCALL error so that abrupt server closures were
also considered errors. For example, a server that does not send a known
protocol termination point (eg HTTP content length or chunked encoding)
_and_ does not send a TLS termination point (close_notify alert) would
cause an error if it closed the connection.
To be clear that behavior made it into release build 7.67.0
unintentionally. Several users have reported it as an issue.
Ultimately the idea is a good one, since it can help prevent against a
truncation attack. Other SSL backends may already behave similarly (such
as Windows native OS SSL Schannel). However much more of our user base
is using OpenSSL and there is a mass of legacy users in that space, so I
think that behavior should be partially reverted and then rolled out
slowly.
This commit changes the behavior so that the increased sensitivity is
disabled in all curl builds except curl debug builds (DEBUGBUILD). If
after a period of time there are no major issues then it can be enabled
in dev and release builds with the newest OpenSSL (1.1.1+), since users
using the newest OpenSSL are the least likely to have legacy problems.
Bug: https://github.com/curl/curl/issues/4409#issuecomment-555955794
Reported-by: Bjoern Franke
Fixes https://github.com/curl/curl/issues/4624
Closes https://github.com/curl/curl/pull/4623
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Reported-by: Paulo Roberto Tomasi
Bug: https://curl.haxx.se/mail/archive-2019-11/0005.html
Closes https://github.com/curl/curl/pull/4593
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Closes #4628
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To avoid potential issues with error code reuse.
Reported-by: Christoph M. Becker
Assisted-by: Dan Fandrich
Fixes #4601
Closes #4627
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Starting with this change when doing parallel transfers, without this
option set, curl will prefer to create new transfers multiplexed on an
existing connection rather than creating a brand new one.
--parallel-immediate can be set to tell curl to prefer to use new
connections rather than to wait and try to multiplex.
libcurl-wise, this means that curl will set CURLOPT_PIPEWAIT by default
on parallel transfers.
Suggested-by: Tom van der Woerdt
Closes #4500
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Change 'experiemental' to 'experimental'.
Closes #4618
Reviewed-by: Daniel Gustafsson <daniel@yesql.se>
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- s/USE_CYASSL/USE_WOLFSSL/
- Remove old compatibility macros.
Follow-up to 1c6c59a from several months ago when CyaSSL named symbols
were renamed to wolfSSL. The wolfSSL library was formerly named CyaSSL
and we kept using their old name for compatibility reasons, until
earlier this year.
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Fixes #4525
Closes #4603
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... as both ngtcp2 and quiche now support that in their master branches
Closes #4604
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Fixes #4614
Closes #4615
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Reviewed-by: Tatsuhiro Tsujikawa
Fixes #4612
Closes #4613
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Prior to this change:
The check if an extra wait is necessary was based not on the
number of extra fds but on the pointer.
If a non-null pointer was given in extra_fds, but extra_nfds
was zero, then the wait was skipped even though poll was not
called.
Closes https://github.com/curl/curl/pull/4610
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Follow-up to 5b2d703 which moved ssh source files to vssh.
Closes https://github.com/curl/curl/pull/4609
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Closes #4606
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Improved estimation of expected_len and updated related comments;
increased strictness of QNAME-encoding, adding error detection for empty
labels and names longer than the overall limit; avoided treating DNAME
as unexpected;
updated unit test 1655 with more thorough set of proofs and tests
Closes #4598
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Assisted-by: Javier Blazquez
Ref #4525 (partial fix)
Closes #4600
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Define the OS macro properly for Windows on ARM builds. Also, we might
as well add the GCC-style IA-64 macro.
Closes #4590
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Show how curl_multi_poll() makes it even easier to use the multi
interface.
Closes #4596
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