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Inspiration provided by: Daniel Stenberg and Ray Satiro
Bug: https://curl.haxx.se/docs/adv_20160530.html
Ref: Windows DLL hijacking with curl, CVE-2016-4802
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The statvfs functionality was added to libssh2 in that version, so we
switch off that functionality when built with older libraries.
Fixes #831
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Regression from the previous *printf() rearrangements, this file missed to
include the correct header to make sure snprintf() works universally.
Reported-by: Moti Avrahami
Bug: https://curl.haxx.se/mail/lib-2016-05/0196.html
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Added support for checking the tchar, unicode and mbcs variants of
strcat() and strncat() in the banned function list.
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- Free compression methods if OpenSSL 1.0.2 to avoid a memory leak.
Bug: https://github.com/curl/curl/issues/817
Reported-by: jveazey@users.noreply.github.com
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While compiling lib/curl_multibyte.c with '-DUSE_WIN32_IDN' etc. I was
getting:
f:\mingw32\src\inet\curl\lib\memdebug.h(38): error C2054: expected '('
to follow 'CURL_EXTERN'
f:\mingw32\src\inet\curl\lib\memdebug.h(38): error C2085:
'curl_domalloc': not in formal parameter list
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See OpenSSL commit 21e001747d4a
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... when generating them, not "2.0" as the protocol is called just
HTTP/2 and nothing else.
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For the Windows XP toolset of Visual C++ 2013/2015, the old Windows SDK
7.1 is used. In this case, _USING_V110_SDK71_ is defined.
Closes #812
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...as otherwise the TLS libs will skip the CN/SAN check and just allow
connection to any server. curl previously skipped this function when SNI
wasn't used or when connecting to an IP address specified host.
CVE-2016-3739
Bug: https://curl.haxx.se/docs/adv_20160518A.html
Reported-by: Moti Avrahami
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CID 1361815: Explicit null dereferenced (FORWARD_NULL)
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CID 1361811: Explicit null dereferenced (FORWARD_NULL)
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CID 1024412: Memory - illegal accesses (OVERRUN). Claimed to happen when
we run over 'workend' but the condition says <= workend and for all I
can see it should be safe. Compensating for the warning by adding a byte
margin in the buffer.
Also, removed the extra brace level indentation in the code and made it
so that 'workend' is only assigned once within the function.
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- Return value type must match function type.
s/CURLM_OUT_OF_MEMORY/CURLE_OUT_OF_MEMORY/
Caught by Travis CI
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The proper FTP wildcard init is now more properly done in Curl_pretransfer()
and the corresponding cleanup in Curl_close().
The previous place of init/cleanup code made the internal pointer to be NULL
when this feature was used with the multi_socket() API, as it was made within
the curl_multi_perform() function.
Reported-by: Jonathan Cardoso Machado
Fixes #800
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Prior to this change a width arg could be erroneously output, and also
width and precision args could not be used together without crashing.
"%0*d%s", 2, 9, "foo"
Before: "092"
After: "09foo"
"%*.*s", 5, 2, "foo"
Before: crash
After: " fo"
Test 557 is updated to verify this and more
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Follow-up commit to 5823179
Closes #648
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The new way of disabling certificate verification doesn't work on
Mountain Lion (OS X 10.8) so we need to use the old way in that version
too. I've tested this solution on versions 10.7.5, 10.8, 10.9, 10.10.2
and 10.11.
Closes #802
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curl's representation of HTTP/2 responses involves transforming the
response to a format that is similar to HTTP/1.1. Prior to this change,
curl would do this by separating header names and values with only a
colon, without introducing a space after the colon.
While this is technically a valid way to represent a HTTP/1.1 header
block, it is much more common to see a space following the colon. This
change introduces that space, to ensure that incautious tools are safely
able to parse the header block.
This also ensures that the difference between the HTTP/1.1 and HTTP/2
response layout is as minimal as possible.
Bug: https://github.com/curl/curl/issues/797
Closes #798
Fixes #797
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... introduced in curl-7_48_0-293-g2968c83:
Error: COMPILER_WARNING:
lib/vtls/openssl.c: scope_hint: In function ‘Curl_ossl_check_cxn’
lib/vtls/openssl.c:767:15: warning: conversion to ‘int’ from ‘ssize_t’
may alter its value [-Wconversion]
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- In the case of recv error, limit returning 'connection still in place'
to EINPROGRESS, EAGAIN and EWOULDBLOCK.
This is an improvement on the parent commit which changed the openssl
connection check to use recv MSG_PEEK instead of SSL_peek.
Ref: https://github.com/curl/curl/commit/856baf5#comments
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Calling SSL_peek can cause bytes to be read from the raw socket which in
turn can upset the select machinery that determines whether there's data
available on the socket.
Since Curl_ossl_check_cxn only tries to determine whether the socket is
alive and doesn't actually need to see the bytes SSL_peek seems like
the wrong function to call.
We're able to occasionally reproduce a connect timeout due to this
bug. What happens is that Curl doesn't know to call SSL_connect again
after the peek happens since data is buffered in the SSL buffer and thus
select won't fire for this socket.
Closes #795
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Only protocols that actually have a protocol registered for ALPN and NPN
should try to get that negotiated in the TLS handshake. That is only
HTTPS (well, http/1.1 and http/2) right now. Previously ALPN and NPN
would wrongly be used in all handshakes if libcurl was built with it
enabled.
Reported-by: Jay Satiro
Fixes #789
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Sometimes, in systems with both ipv4 and ipv6 addresses but where the
network doesn't support ipv6, Curl_is_connected returns an error
(intermittently) even if the ipv4 socket connects successfully.
This happens because there's a for-loop that iterates on the sockets but
the error variable is not resetted when the ipv4 is checked and is ok.
This patch fixes this problem by setting error to 0 when checking the
second socket and not having a result yet.
Fixes #794
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Reported-by: Oleg Pudeyev and fuchaoqun
Fixes #648
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Reported-by: rcanavan
Assisted-by: Isaac Boukris
Closes #785
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to make it obvious to users trying to use the feature with TLS backends
not supporting it.
Discussed in #781
Reported-by: Travis Burtrum
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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
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Mostly because they're not needed, because memdebug.h is always included
last of all headers so the others already included the correct ones.
But also, starting now we don't want this to accidentally include any
system headers, as the header included _before_ this header may add
defines and other fun stuff that we won't want used in system includes.
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This also fixes PolarSSL session resume.
Prior to this change the TLS session information wasn't properly
saved and restored for PolarSSL and mbedTLS.
Bug: https://curl.haxx.se/mail/lib-2016-01/0070.html
Reported-by: Thomas Glanzmann
Bug: https://curl.haxx.se/mail/lib-2016-04/0095.html
Reported-by: Moti Avrahami
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OpenSSL 1.1.0-pre seems to return NULL(?) for a whole lot of those
numbers so make sure the function handles this.
Reported-by: Linus Nordberg
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Previously, connections were closed immediately before the user had a
chance to extract the socket when the proxy required Negotiate
authentication.
This regression was brought in with the security fix in commit
79b9d5f1a42578f
Closes #655
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Regression introduced in 09b5a998
Bug: https://curl.haxx.se/mail/lib-2016-04/0084.html
Reported-by: BoBo
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If buffer is allocated, but nothing is received during prereceive
stage, than number of processed bytes must be zero.
Closes #778
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The RSA, DSA and DH structs are now opaque and require use of new APIs
Fixes #763
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Fixed commit fa5fa65a30 to not use NULLs in if condition.
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At ConnectionExists, both check->proxyuser and check->proxypasswd
could be NULL, so make sure to check first.
Fixes #765
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WinSock destroys recv() buffer if send() is failed. As result - server
response may be lost if server sent it while curl is still sending
request. This behavior noticeable on HTTP server short replies if
libcurl use several send() for request (usually for POST request).
To workaround this problem, libcurl use recv() before every send() and
keeps received data in intermediate buffer for further processing.
Fixes: #657
Closes: #668
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This commit fixes a Clang warning introduced in curl-7_48_0-190-g8f72b13:
Error: CLANG_WARNING:
lib/connect.c:1120:11: warning: The right operand of '==' is a garbage value
1118| }
1119|
1120|-> if(-1 == rc)
1121| error = SOCKERRNO;
1122| }
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... as checksrc now skips comments
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... that the new checksrc detected
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... since checksrc now skips comments
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... but output non-stripped version of the line, even if that then can
make the script identify the wrong position in the line at
times. Showing the line stripped (ie without comments) is just too
surprising.
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