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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: test2.c
**
** Purpose: Open a read-only file and attempt to write some data to it.
** Check to ensure that an ferror occurs.
**
** Depends:
** fopen
** fwrite
** fclose
**
**
**
**===================================================================*/
#include <palsuite.h>
int __cdecl main(int argc, char **argv)
{
const char filename[] = "testfile";
FILE * fp = NULL;
int result;
if (PAL_Initialize(argc, argv))
{
return FAIL;
}
/* Open a file in READONLY mode */
if((fp = fopen(filename, "r")) == NULL)
{
Fail("Unable to open a file for reading.");
}
/* Attempt to write 14 characters to the file. */
if((result = fwrite("This is a test",1,14,fp)) != 0)
{
Fail("ERROR: %d characters written. 0 characters should "
"have been written, since this file is read-only.", result);
}
if(ferror(fp) == 0)
{
Fail("ERROR: ferror should have generated an error when "
"write was called on a read-only file. But, it "
"retured 0, indicating no error.\n");
}
/* Close the file. */
if(fclose(fp) != 0)
{
Fail("ERROR: fclose failed when trying to close a file pointer. "
"This test depends on fclose working properly.");
}
PAL_Terminate();
return PASS;
}
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