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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: SetFilePointer.c (test 6)
**
** Purpose: Tests the PAL implementation of the SetFilePointer function.
** Test the FILE_CURRENT option with high order support
**
** Assumes Successful:
** CreateFile
** ReadFile
** WriteFile
** strlen
** CloseHandle
** strcmp
** GetFileSize
**
**
**===================================================================*/
#include <palsuite.h>
const char* szTextFile = "text.txt";
int __cdecl main(int argc, char *argv[])
{
HANDLE hFile = NULL;
DWORD dwOffset = 0;
LONG dwHighOrder = 0;
DWORD dwReturnedOffset = 0;
LONG dwReturnedHighOrder = 0;
DWORD dwRc = 0;
if (0 != PAL_Initialize(argc,argv))
{
return FAIL;
}
/* create a test file */
hFile = CreateFile(szTextFile,
GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
CREATE_ALWAYS,
FILE_ATTRIBUTE_NORMAL,
NULL);
if(hFile == INVALID_HANDLE_VALUE)
{
Fail("SetFilePointer: ERROR -> Unable to create file \"%s\".\n",
szTextFile);
}
/* move waaaay before the beginning which should fail */
dwHighOrder = -1;
dwOffset = 0;
dwRc = SetFilePointer(hFile, dwOffset, &dwHighOrder, FILE_CURRENT);
if (dwRc != INVALID_SET_FILE_POINTER)
{
Trace("SetFilePointer: ERROR -> Succeeded to move the pointer "
"before the beginning of the file.\n");
if (CloseHandle(hFile) != TRUE)
{
Trace("SetFilePointer: ERROR -> Unable to close file \"%s\".\n",
szTextFile);
}
if (!DeleteFileA(szTextFile))
{
Trace("SetFilePointer: ERROR -> Unable to delete file \"%s\".\n",
szTextFile);
}
PAL_TerminateEx(FAIL);
return FAIL;
}
/* move the pointer ahead in the file and verify */
dwHighOrder = 1;
dwOffset = 10;
dwRc = SetFilePointer(hFile, dwOffset, &dwHighOrder, FILE_CURRENT);
if ((dwRc != 10) || (dwHighOrder != 1))
{
Trace("SetFilePointer: ERROR -> Asked to move 2GB plus 10 bytes from "
"the beginning of the file but didn't.\n");
if (CloseHandle(hFile) != TRUE)
{
Trace("SetFilePointer: ERROR -> Unable to close file \"%s\".\n",
szTextFile);
}
if (!DeleteFileA(szTextFile))
{
Trace("SetFilePointer: ERROR -> Unable to delete file \"%s\".\n",
szTextFile);
}
PAL_TerminateEx(FAIL);
return FAIL;
}
else
{
/* verify results */
if (SetEndOfFile(hFile) != TRUE)
{
Trace("SetFilePointer: ERROR -> Call to SetEndOfFile failed with "
"error code: %d\n", GetLastError());
if (CloseHandle(hFile) != TRUE)
{
Trace("SetFilePointer: ERROR -> Unable to close file"
" \"%s\".\n", szTextFile);
}
if (!DeleteFileA(szTextFile))
{
Trace("SetFilePointer: ERROR -> Unable to delete file"
" \"%s\".\n", szTextFile);
}
PAL_TerminateEx(FAIL);
return FAIL;
}
dwReturnedOffset = GetFileSize(hFile, (DWORD*)&dwReturnedHighOrder);
if ((dwReturnedOffset != dwOffset) ||
(dwReturnedHighOrder != dwHighOrder))
{
Trace("SetFilePointer: ERROR -> Asked to move far past the "
"current file pointer. "
"low order sent: %ld low order returned: %ld "
"high order sent: %ld high order returned: %ld",
dwOffset, dwReturnedOffset,
dwHighOrder, dwReturnedHighOrder);
if (!DeleteFileA(szTextFile))
{
Trace("SetFilePointer: ERROR -> Unable to delete file"
" \"%s\".\n", szTextFile);
}
PAL_TerminateEx(FAIL);
return FAIL;
}
}
/*
* move the pointer backwards in the file and verify
*/
dwOffset = 0;
dwHighOrder = -1;
dwRc = SetFilePointer(hFile, dwOffset, &dwHighOrder, FILE_CURRENT);
if (dwRc != 10)
{
Trace("SetFilePointer: ERROR -> Asked to move back to 10 bytes from the"
"beginning of the file but moved it to position %ld.\n", dwRc);
if (CloseHandle(hFile) != TRUE)
{
Trace("SetFilePointer: ERROR -> Unable to close file \"%s\".\n",
szTextFile);
}
if (!DeleteFileA(szTextFile))
{
Trace("SetFilePointer: ERROR -> Unable to delete file \"%s\".\n",
szTextFile);
}
PAL_TerminateEx(FAIL);
return FAIL;
}
else
{
/* verify results */
dwReturnedHighOrder = 0;
dwRc = SetFilePointer(hFile, 0, &dwReturnedHighOrder, FILE_CURRENT);
if (dwRc != 10)
{
Trace("SetFilePointer: ERROR -> Asked for current position. "
"Should be 10 but was %ld.\n", dwRc);
if (CloseHandle(hFile) != TRUE)
{
Trace("SetFilePointer: ERROR -> Unable to close file"
" \"%s\".\n", szTextFile);
}
if (!DeleteFileA(szTextFile))
{
Trace("SetFilePointer: ERROR -> Unable to delete file"
" \"%s\".\n", szTextFile);
}
PAL_TerminateEx(FAIL);
return FAIL;
}
}
/* clean up, clean up, everybody do their share... */
if (CloseHandle(hFile) != TRUE)
{
Trace("SetFilePointer: ERROR -> Unable to close file \"%s\".\n",
szTextFile);
if (!DeleteFileA(szTextFile))
{
Trace("SetFilePointer: ERROR -> Unable to delete file \"%s\".\n",
szTextFile);
}
PAL_TerminateEx(FAIL);
return FAIL;
}
if (!DeleteFileA(szTextFile))
{
Fail("SetFilePointer: ERROR -> Unable to delete file \"%s\".\n",
szTextFile);
}
PAL_Terminate();
return PASS;
}
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