cURL error 23 when writing output to the terminal on Windows #12131
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zuoxiaofeng
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Nov 28, 2023
- Pass missing parameter for 'lpNumberOfCharsWritten' to WriteConsoleW() function. Apparently this parameter was *not* optional on older Windows versions. Issue observed on Windows XP SP2. Issue not observed on Windows 7 SP1. So at some point between those two Microsoft changed the behavior. Prior to this change, on those versions if parameter is NULL then the function call fails with error ERROR_INVALID_ACCESS. Regression since af3f4e4. Ref: MicrosoftDocs/Console-Docs#299 Fixes curl#12131 Closes curl#12130
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I did this
On some Windows version (tested with WinXP SP-2), cURL fails with the following error, if writing output to the terminal:
(output to a file still works)
I have been able to track this error down to the
tool_write_cb()function 😤Specifically, the invocation of
WriteConsoleW()fails, with Win32 error codeERROR_INVALID_ACCESS.Setting parameter lpNumberOfCharsWritten to a valid pointer fixed the problem for me.
Please see: #12130
This seems to be a regression from: af3f4e4
I expected the following
cURL should be able to write to the terminal.
curl/libcurl version
cURL 8.4.0
operating system
Windows
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