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/* rename( const char *, const char * )
This file is part of the Public Domain C Library (PDCLib).
Permission is granted to use, modify, and / or redistribute at will.
*/
#include <stdio.h>
#ifndef REGTEST
#include "pdclib/_PDCLIB_glue.h"
#include <string.h>
#ifndef __STDC_NO_THREADS__
#include <threads.h>
extern mtx_t _PDCLIB_filelist_mtx;
#endif
extern struct _PDCLIB_file_t * _PDCLIB_filelist;
int rename( const char * oldpath, const char * newpath )
{
_PDCLIB_LOCK( _PDCLIB_filelist_mtx );
{
struct _PDCLIB_file_t * current = _PDCLIB_filelist;
while ( current != NULL )
{
if ( ( current->filename != NULL ) && ( strcmp( current->filename, oldpath ) == 0 ) )
{
/* File of that name currently open. Do not rename. */
_PDCLIB_UNLOCK( _PDCLIB_filelist_mtx );
return EOF;
}
current = current->next;
}
}
_PDCLIB_UNLOCK( _PDCLIB_filelist_mtx );
return _PDCLIB_rename( oldpath, newpath );
}
#endif
#ifdef TEST
#include "_PDCLIB_test.h"
#include <stdlib.h>
int main( void )
{
FILE * file;
remove( testfile1 );
remove( testfile2 );
/* make sure that neither file exists */
TESTCASE( fopen( testfile1, "r" ) == NULL );
TESTCASE( fopen( testfile2, "r" ) == NULL );
/* rename file 1 to file 2 - expected to fail */
TESTCASE( rename( testfile1, testfile2 ) == -1 );
/* create file 1 */
TESTCASE( ( file = fopen( testfile1, "w" ) ) != NULL );
TESTCASE( fputs( "x", file ) != EOF );
TESTCASE( fclose( file ) == 0 );
/* check that file 1 exists */
TESTCASE( ( file = fopen( testfile1, "r" ) ) != NULL );
TESTCASE( fclose( file ) == 0 );
/* rename file 1 to file 2 */
TESTCASE( rename( testfile1, testfile2 ) == 0 );
/* check that file 2 exists, file 1 does not */
TESTCASE( fopen( testfile1, "r" ) == NULL );
TESTCASE( ( file = fopen( testfile2, "r" ) ) != NULL );
TESTCASE( fclose( file ) == 0 );
/* create another file 1 */
TESTCASE( ( file = fopen( testfile1, "w" ) ) != NULL );
TESTCASE( fputs( "x", file ) != EOF );
TESTCASE( fclose( file ) == 0 );
/* check that file 1 exists */
TESTCASE( ( file = fopen( testfile1, "r" ) ) != NULL );
TESTCASE( fclose( file ) == 0 );
/* rename file 1 to file 2 - expected to fail, see comment in
_PDCLIB_rename() itself.
*/
/* NOREG as glibc overwrites existing destination file. */
TESTCASE_NOREG( rename( testfile1, testfile2 ) == -1 );
/* remove both files */
TESTCASE( remove( testfile1 ) == 0 );
TESTCASE( remove( testfile2 ) == 0 );
/* check that they're gone */
TESTCASE( fopen( testfile1, "r" ) == NULL );
TESTCASE( fopen( testfile2, "r" ) == NULL );
return TEST_RESULTS;
}
#endif
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