+/* $Id$ */
+
+/* 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_glue.h>
+
+#include <string.h>
+
+extern _PDCLIB_file_t * _PDCLIB_filelist;
+
+int rename( const char * old, const char * new )
+{
+ FILE * current = _PDCLIB_filelist;
+ while ( current != NULL )
+ {
+ if ( ( current->filename != NULL ) && ( strcmp( current->filename, old ) == 0 ) )
+ {
+ /* File of that name currently open. Do not rename. */
+ return EOF;
+ }
+ current = current->next;
+ }
+ return _PDCLIB_rename( old, new );
+}
+
+#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 ) != 0 );
+ /* 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 ) != 0 );
+ /* 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
+