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// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
/*=====================================================================
**
** Source: ReadFile.c (test 1)
**
** Purpose: Tests the PAL implementation of the ReadFile function.
** This test will attempt to read from a NULL handle and from
** a file without read permissions set.
**
**
**===================================================================*/
#include <palsuite.h>
int __cdecl main(int argc, char *argv[])
{
HANDLE hFile = NULL;
DWORD dwByteCount = 0;
DWORD dwBytesRead = 0;
BOOL bRc = FALSE;
char szBuffer[256];
char* szNonReadableFile = {"nonreadablefile.txt"};
if (0 != PAL_Initialize(argc,argv))
{
return FAIL;
}
memset(szBuffer, 0, 256);
/* Read from a NULL handle
*/
bRc = ReadFile(hFile, szBuffer, 20, &dwBytesRead, NULL);
if (bRc == TRUE)
{
Fail("ReadFile: ERROR -> Able to read from a NULL handle\n");
}
/* Read from a file without read permissions
*/
#if WIN32
#else
/* attempt to read from the unreadable file
* open a file without read permissions
*/
hFile = CreateFile(szNonReadableFile,
GENERIC_WRITE,
FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
FILE_ATTRIBUTE_NORMAL,
NULL);
if(hFile == INVALID_HANDLE_VALUE)
{
dwByteCount = GetLastError();
Fail("ReadFile: ERROR -> Unable to create file \"%s\".\n",
szNonReadableFile);
}
bRc = ReadFile(hFile, szBuffer, 20, &dwBytesRead, NULL);
if (bRc == TRUE)
{
Fail("ReadFile: ERROR -> Able to read from a file without read "
"permissions\n");
}
#endif
PAL_Terminate();
return PASS;
}
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