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[UCRT] Import Microsoft.Windows.SDK.CRTSource version 10.0.22621.3

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Imported from https://www.nuget.org/packages/Microsoft.Windows.SDK.CRTSource/10.0.22621.3
License: MIT
This commit is contained in:
Timo Kreuzer 2024-05-11 07:03:12 +02:00
parent f1b60c66f0
commit 04e0dc4a7a
568 changed files with 115483 additions and 0 deletions
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55
sdk/lib/ucrt/misc/drivfree.cpp Normal file
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/***
*drivfree.c - Get the size of a disk
*
* Copyright (c) Microsoft Corporation. All rights reserved.
*
*Purpose:
* This file has _getdiskfree()
*
*******************************************************************************/
#include <corecrt_internal.h>
#include <direct.h>
// Gets the size information for the given drive. The 'drive_number' must be a
// number, 1 through 26, corresponding to drives A: through Z:. Returns zero on
// success; a system error code on failure.
extern "C" unsigned __cdecl _getdiskfree(
unsigned const drive_number,
_diskfree_t* const result
)
{
_VALIDATE_RETURN(result != nullptr, EINVAL, ERROR_INVALID_PARAMETER);
_VALIDATE_RETURN(drive_number <= 26, EINVAL, ERROR_INVALID_PARAMETER);
*result = _diskfree_t();
wchar_t drive_name_buffer[4] = { '_', ':', '\\', '\0' };
wchar_t const* const drive_name = drive_number == 0
? nullptr
: drive_name_buffer;
if (drive_number != 0)
{
drive_name_buffer[0] = static_cast<wchar_t>(drive_number) + static_cast<wchar_t>(L'A' - 1);
}
static_assert(sizeof(result->sectors_per_cluster) == sizeof(DWORD), "Unexpected sizeof long");
if (!GetDiskFreeSpaceW(drive_name,
reinterpret_cast<LPDWORD>(&result->sectors_per_cluster),
reinterpret_cast<LPDWORD>(&result->bytes_per_sector),
reinterpret_cast<LPDWORD>(&result->avail_clusters),
reinterpret_cast<LPDWORD>(&result->total_clusters)))
{
int const os_error = GetLastError();
errno = __acrt_errno_from_os_error(os_error);
return os_error;
}
return 0;
}