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Increase decrypted and encrypted cache buffers using limitted
doubling strategy. More information on the mailinglist:
http://curl.haxx.se/mail/lib-2012-06/0255.html
It updates the two remaining reallocations that have already been there
and fixes the other one to use the same "do we need to increase the
buffer"-condition as the other two. CURL_SCHANNEL_BUFFER_STEP_SIZE was
renamed to CURL_SCHANNEL_BUFFER_FREE_SIZE since that is actually what it
is now. Since we don't know how much more data we are going to read
during the handshake, CURL_SCHANNEL_BUFFER_FREE_SIZE is used as the
minimum free space required in the buffer for the next operation.
CURL_SCHANNEL_BUFFER_STEP_SIZE was used for that before, too, but since
we don't have a step size now, the define was renamed.
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In schannel_connect_step2() doread should be initialized based
on connssl->connecting_state.
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Process extra data buffer before returning from schannel_connect_step2.
Without this change I've seen WinCE hang when schannel_connect_step2
returns and calls Curl_socket_ready.
If the encrypted handshake does not fit in the intial buffer (seen with
large certificate chain), increasing the encrypted data buffer is necessary.
Fixed warning in curl_schannel.c line 1215.
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process.h is not present on WinCE
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Implemented timeout loop in schannel_send while sending data. This
is as close as I think we can get to write buffering; I put a big
comment in to explain my thinking.
With some committer adjustments
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Replaced calls to swrite with Curl_write_plain and calls to sread
with Curl_read_plain.
With some committer adjustments
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Make the Schannel implementation use libcurl's default buffer size
for the initial received encrypted and decrypted data cache buffers.
The implementation still needs to handle more data since more data
might have already been received or decrypted during the handshake
or a read operation which needs to be cached for the next read.
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curl_schannel.c - implemented graceful SSL shutdown. If we fail to
shutdown the connection gracefully, I've seen schannel try to use a
session ID for future connects and the server aborts the connection
during the handshake.
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curl_schannel.c - auto certificate validation doesn't seem to work
right on CE. I added a method to perform the certificate validation
which uses CertGetCertificateChain and manually handles the result.
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Added helper methods InitSecBuffer() and InitSecBufferDesc() to make it
easier to set up SecBuffer & SecBufferDesc structs.
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Avoid usage of some MS type synonyms to allow compilation with
compiler headers that don't define these, using simpler synonyms.
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Coverity actually pointed out flawed logic in the previous call to
Curl_strntoupper() where the code used sizeof() of a pointer to pass in
a size argument. That code still worked since it only needed to
uppercase 4 letters. Still, the entire malloc/uppercase/free sequence
was pointless since the code has already matched the string once in the
condition that starts the block of code.
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As spotted by Coverity, va_end() was not used previously. To make it
used I took away a bunch of return statements and made them into
assignments instead.
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SSPI related code now compiles with ANSI and WCHAR versions of security
methods (WinCE requires WCHAR versions of methods).
Pulled UTF8 to WCHAR conversion methods out of idn_win32.c into their own file.
curl_sasl.c - include curl_memory.h to use correct memory functions.
getenv.c and telnet.c - WinCE compatibility fix
With some committer adjustments
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Calls to failf() are not supposed to provide trailing newline.
Calls to infof() must provide trailing newline.
Fixed 30 or so strings.
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Building with CyaSSL failed compilation. Reason being that OCSP_REQUEST and
OCSP_RESPONSE are enum values in CyaSSL and defines in <wincrypt.h> included
via <winldap.h> in ldap.c.
http://curl.haxx.se/mail/lib-2012-06/0196.html
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This is more descriptive for the user who might
not even know what schannnel is at all.
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Version number is removed in order to make this info consistent with
how we do it with other MS and Linux system libraries for which we don't
provide this info.
Identifier changed from 'WinSSPI' to 'schannel' given that this is the
actual provider of the SSL/TLS support. libcurl can still be built with
SSPI and without SCHANNEL support.
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No need to check if 'entry' is non-NULL in a spot where it is already checked
and guaranteed to be non-NULL.
(Spotted by a Coverity scan)
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Remove two states from the enum and the corresponding code for them as
these states were never reached or used.
(Spotted by a Coverity scan)
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This reverts commit 9c94236e6cc078a0dc5a78b6e2fefc1403e5375e.
It didn't server its purpose, so lets go back to long-time working code.
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Removed obsolete minor status variable and parameter of status function
which was never used or set at all. Also Curl_sspi_strerror does support
only one status and there is no need for a second sub status.
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Make sure CURL_VERSION_SSPI is present and works as in previous releases
for ABI and API compatibility reasons.
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