Addressed ticket #40 (non-standard errno values).

[pdclib] / functions / stdio / fclose.c

diff --git a/functions/stdio/fclose.c b/functions/stdio/fclose.c
index ff01058d59c005e581d495318a4721188b900451..81b57c49a4b0c281c195596f9cda94fe7f42e326 100644 (file)
--- a/functions/stdio/fclose.c
+++ b/functions/stdio/fclose.c
@@ -14,7 +14,6 @@
 
 extern struct _PDCLIB_file_t * _PDCLIB_filelist;
 
-/* FIXME: Last file not removed from list. */
 int fclose( struct _PDCLIB_file_t * stream )
 {
     struct _PDCLIB_file_t * current = _PDCLIB_filelist;
@@ -24,22 +23,45 @@ int fclose( struct _PDCLIB_file_t * stream )
     {
         if ( stream == current )
         {
-            if ( stream->status & _PDCLIB_WROTELAST ) fflush( stream );
-            if ( stream->status & _PDCLIB_LIBBUFFER ) free( stream->buffer );
+            /* Flush buffer */
+            if ( stream->status & _PDCLIB_FWRITE )
+            {
+                if ( _PDCLIB_flushbuffer( stream ) == EOF )
+                {
+                    /* Flush failed, errno already set */
+                    return EOF;
+                }
+            }
+            /* Close handle */
             _PDCLIB_close( stream->handle );
+            /* Remove stream from list */
             if ( previous != NULL )
             {
-                previous = current->next;
+                previous->next = stream->next;
             }
             else
             {
-                _PDCLIB_filelist = current->next;
+                _PDCLIB_filelist = stream->next;
+            }
+            /* Delete tmpfile() */
+            if ( stream->status & _PDCLIB_DELONCLOSE )
+            {
+                remove( stream->filename );
+            }
+            /* Free stream */
+            if ( ! ( stream->status & _PDCLIB_STATIC ) )
+            {
+                free( stream );
             }
             return 0;
         }
         previous = current;
         current = current->next;
     }
+    /* See the comments on implementation-defined errno values in
+       <_PDCLIB_config.h>.
+    */
+    _PDCLIB_errno = _PDCLIB_ERROR;
     return -1;
 }
 
@@ -50,24 +72,31 @@ int fclose( struct _PDCLIB_file_t * stream )
 
 int main( void )
 {
-    /* FIXME: This is basically fopen() checking. Flushing and buffer-freeing is not checked. */
+#ifndef REGTEST
     struct _PDCLIB_file_t * file1;
     struct _PDCLIB_file_t * file2;
-    TESTCASE( _PDCLIB_filelist == NULL );
-    TESTCASE( ( file1 = fopen( "testfile1", "w" ) ) != NULL );
+    remove( testfile1 );
+    remove( testfile2 );
+    TESTCASE( _PDCLIB_filelist == stdin );
+    TESTCASE( ( file1 = fopen( testfile1, "w" ) ) != NULL );
     TESTCASE( _PDCLIB_filelist == file1 );
-    TESTCASE( ( file2 = fopen( "testfile2", "w" ) ) != NULL );
+    TESTCASE( ( file2 = fopen( testfile2, "w" ) ) != NULL );
     TESTCASE( _PDCLIB_filelist == file2 );
     TESTCASE( fclose( file2 ) == 0 );
     TESTCASE( _PDCLIB_filelist == file1 );
-    TESTCASE( ( file2 = fopen( "testfile1", "w" ) ) != NULL );
+    TESTCASE( ( file2 = fopen( testfile1, "w" ) ) != NULL );
     TESTCASE( _PDCLIB_filelist == file2 );
     TESTCASE( fclose( file1 ) == 0 );
     TESTCASE( _PDCLIB_filelist == file2 );
     TESTCASE( fclose( file2 ) == 0 );
-    TESTCASE( _PDCLIB_filelist == NULL );
-    system( "rm testfile1 testfile2" );
+    TESTCASE( _PDCLIB_filelist == stdin );
+    TESTCASE( remove( testfile1 ) == 0 );
+    TESTCASE( remove( testfile2 ) == 0 );
+#else
+    puts( " NOTEST fclose() test driver is PDCLib-specific." );
+#endif
     return TEST_RESULTS;
 }
 
 #endif
+