#include <stdlib.h>
#include <string.h>
-struct _PDCLIB_file_t * freopen( const char * _PDCLIB_restrict filename, const char * _PDCLIB_restrict mode, struct _PDCLIB_file_t * _PDCLIB_restrict stream )
+struct _PDCLIB_file_t * freopen(
+ const char * _PDCLIB_restrict filename,
+ const char * _PDCLIB_restrict mode,
+ struct _PDCLIB_file_t * _PDCLIB_restrict stream )
{
+ flockfile( stream );
+
unsigned int status = stream->status & ( _IONBF | _IOLBF | _IOFBF | _PDCLIB_FREEBUFFER | _PDCLIB_DELONCLOSE );
/* TODO: This function can change wide orientation of a stream */
if ( stream->status & _PDCLIB_FWRITE )
if ( ( filename == NULL ) && ( stream->filename == NULL ) )
{
/* TODO: Special handling for mode changes on std-streams */
+ funlockfile( stream );
return NULL;
}
_PDCLIB_close( stream->handle );
/* Allocate new buffer */
if ( ( stream->filename = (char *)malloc( strlen( filename ) ) ) == NULL )
{
+ funlockfile( stream );
return NULL;
}
strcpy( stream->filename, filename );
}
if ( ( mode == NULL ) || ( filename[0] == '\0' ) )
{
+ funlockfile( stream );
return NULL;
}
if ( ( stream->status = _PDCLIB_filemode( mode ) ) == 0 )
{
+ funlockfile( stream );
return NULL;
}
/* Re-add the flags we saved above */
/* TODO: Setting mbstate */
if ( ( stream->handle = _PDCLIB_open( filename, stream->status ) ) == _PDCLIB_NOHANDLE )
{
+ funlockfile( stream );
return NULL;
}
+ funlockfile( stream );
return stream;
}
int main( void )
{
- TESTCASE( NO_TESTDRIVER );
+ FILE * fin;
+ FILE * fout;
+ TESTCASE( ( fin = fopen( testfile1, "wb+" ) ) != NULL );
+ TESTCASE( fputc( 'x', fin ) == 'x' );
+ TESTCASE( fclose( fin ) == 0 );
+ TESTCASE( ( fin = freopen( testfile1, "rb", stdin ) ) != NULL );
+ TESTCASE( getchar() == 'x' );
+
+ TESTCASE( ( fout = freopen( testfile2, "wb+", stdout ) ) != NULL );
+ TESTCASE( putchar( 'x' ) == 'x' );
+ rewind( fout );
+ TESTCASE( fgetc( fout ) == 'x' );
+
+ TESTCASE( fclose( fin ) == 0 );
+ TESTCASE( fclose( fout ) == 0 );
+ TESTCASE( remove( testfile1 ) == 0 );
+ TESTCASE( remove( testfile2 ) == 0 );
+
return TEST_RESULTS;
}