#ifndef REGTEST
#include <_PDCLIB_glue.h>
+#include <string.h>
+
+extern struct _PDCLIB_file_t * _PDCLIB_filelist;
+
int rename( const char * old, const char * new )
{
- /* TODO: Search open file list, flush and close file */
+ struct _PDCLIB_file_t * 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 );
}
#ifdef TEST
#include <_PDCLIB_test.h>
+#include <stdlib.h>
+
int main( void )
{
-#ifndef REGTEST
- TESTCASE( NO_TESTDRIVER );
-#else
- puts( "No testing of rename() - test driver does not know internals of system function." );
-#endif
+ 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
+