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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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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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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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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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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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Reworked the version function to return four version components rather
than a string that has to be freed by the caller.
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curl_sspi.c: Fixed mingw32-gcc compiler warnings
curl_sspi.c: Fixed length of error code hex output
The hex value was printed as signed 64-bit value on 64-bit systems:
SEC_E_WRONG_PRINCIPAL (0xFFFFFFFF80090322)
It is now correctly printed as the following:
SEC_E_WRONG_PRINCIPAL (0x80090322)
curl_sspi.c: Fallback to security function table version number
Instead of reporting an unknown version, the interface version is used.
curl_sspi.c: Removed SSPI/ version prefix from Curl_sspi_version
curl_schannel: Replaced static buffer sizes with defined names
curl_schannel.c: First brace when declaring functions on column 0
curl_schannel.c: Put the pointer sign directly at variable name
curl_schannel.c: Use structs directly instead of typedef'ed structs
curl_schannel.c: Removed space before opening brace
curl_schannel.c: Fixed lines being longer than 80 chars
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Added new function to get SSPI version as string.
Added required library version.lib to makefiles.
Changed curl_schannel.c to use Curl_sspi_version.
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Moved type definitions in order to avoid inclusion loop
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Moved the error constant switch to curl_sspi.c and added two new helper
functions to curl_sspi.[ch] which either return the constant or a fully
translated message representing the SSPI security status.
Updated socks_sspi.c and curl_schannel.c to use the new functions.
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Windows 2000 Professional: Schannel returns SEC_E_OK instead
of SEC_I_CONTEXT_EXPIRED. If the length of the output buffer
is zero and the first byte of the encrypted packet is 0x15,
the application can safely assume that the message was a
close_notify message and change the return value to
SEC_I_CONTEXT_EXPIRED.
Connection shutdown does not mean that there is no data to read
Correctly handle incomplete message and ask curl to re-read
Fixed buffer for decrypted being to small
Re-structured read condition to be more effective
Removed obsolete verbose messages
Changed memory reduction method to keep a minimum buffer of size 4096
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Updated TODO information and added related MSDN articles
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