/* $Id$ */
-/* Release $Name$ */
-
/* _PDCLIB_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 <unistd.h>
#include <_PDCLIB_glue.h>
+#include </usr/include/errno.h>
+
+extern int unlink( const char * pathname );
+extern int link( const char * old, const char * new );
+
int _PDCLIB_rename( const char * old, const char * new )
{
/* Note that the behaviour if new file exists is implementation-defined.
*/
if ( link( old, new ) == 0 )
{
- return unlink( old );
+ if ( unlink( old ) == EOF )
+ {
+ switch ( errno )
+ {
+ /* See the comments on implementation-defined errno values in
+ <_PDCLIB_config.h>.
+ */
+ case EACCES:
+ case EFAULT:
+ case EIO:
+ case EISDIR:
+ case ELOOP:
+ case ENAMETOOLONG:
+ case ENOENT:
+ case ENOMEM:
+ case ENOTDIR:
+ case EPERM:
+ case EROFS:
+ _PDCLIB_errno = _PDCLIB_ERROR;
+ break;
+ default:
+ /* This should be something like EUNKNOWN. */
+ _PDCLIB_errno = _PDCLIB_ERROR;
+ break;
+ }
+ return -1;
+ }
+ else
+ {
+ return 0;
+ }
}
else
{
- return -1;
+ switch ( errno )
+ {
+ /* See the comments on implementation-defined errno values in
+ <_PDCLIB_config.h>.
+ */
+ case EACCES:
+ case EEXIST:
+ case EFAULT:
+ case EIO:
+ case ELOOP:
+ case EMLINK:
+ case ENAMETOOLONG:
+ case ENOENT:
+ case ENOMEM:
+ case ENOSPC:
+ case ENOTDIR:
+ case EPERM:
+ case EROFS:
+ case EXDEV:
+ _PDCLIB_errno = _PDCLIB_ERROR;
+ break;
+ default:
+ /* This should be something like EUNKNOWN. */
+ _PDCLIB_errno = _PDCLIB_ERROR;
+ break;
+ }
+ return EOF;
}
}
#ifdef TEST
#include <_PDCLIB_test.h>
+#include <stdlib.h>
+
int main( void )
{
- TESTCASE( NO_TESTDRIVER );
+ FILE * file;
+ remove( testfile1 );
+ remove( testfile2 );
+ /* check that neither file exists */
+ TESTCASE( fopen( testfile1, "r" ) == NULL );
+ TESTCASE( fopen( testfile2, "r" ) == NULL );
+ /* rename file 1 to file 2 - expected to fail */
+ TESTCASE( _PDCLIB_rename( testfile1, testfile2 ) == -1 );
+ /* create file 1 */
+ TESTCASE( ( file = fopen( testfile1, "w" ) ) != NULL );
+ TESTCASE( fputc( 'x', file ) == 'x' );
+ 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( _PDCLIB_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( fputc( 'x', file ) == 'x' );
+ 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.
+ */
+ TESTCASE( _PDCLIB_rename( testfile1, testfile2 ) == -1 );
+ /* remove both files */
+ remove( testfile1 );
+ remove( testfile2 );
return TEST_RESULTS;
}