added pdclib, removed sash

1 files changed, 106 insertions, 0 deletions

diff --git a/src/pdclib/functions/stdio/fclose.c b/src/pdclib/functions/stdio/fclose.c
new file mode 100644
index 0000000..9a1388d
--- /dev/null
+++ b/src/pdclib/functions/stdio/fclose.c
@@ -0,0 +1,106 @@
+/* fclose( FILE * )
+
+   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>
+#include <stdlib.h>
+
+#ifndef REGTEST
+
+#include "pdclib/_PDCLIB_glue.h"
+
+extern struct _PDCLIB_file_t * _PDCLIB_filelist;
+
+int fclose( struct _PDCLIB_file_t * stream )
+{
+    struct _PDCLIB_file_t * current = _PDCLIB_filelist;
+    struct _PDCLIB_file_t * previous = NULL;
+    /* Checking that the FILE handle is actually one we had opened before. */
+    while ( current != NULL )
+    {
+        if ( stream == current )
+        {
+            /* 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->next = stream->next;
+            }
+            else
+            {
+                _PDCLIB_filelist = stream->next;
+            }
+            /* Delete tmpfile() */
+            if ( stream->status & _PDCLIB_DELONCLOSE )
+            {
+                remove( stream->filename );
+            }
+            /* Free user buffer (SetVBuf allocated) */
+            if ( stream->status & _PDCLIB_FREEBUFFER )
+            {
+                free( stream->buffer );
+            }
+            /* 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;
+}
+
+#endif
+
+#ifdef TEST
+
+#include "_PDCLIB_test.h"
+
+int main( void )
+{
+#ifndef REGTEST
+    struct _PDCLIB_file_t * file1;
+    struct _PDCLIB_file_t * file2;
+    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( _PDCLIB_filelist == file2 );
+    TESTCASE( fclose( file2 ) == 0 );
+    TESTCASE( _PDCLIB_filelist == file1 );
+    TESTCASE( ( file2 = fopen( testfile2, "w" ) ) != NULL );
+    TESTCASE( _PDCLIB_filelist == file2 );
+    TESTCASE( fclose( file1 ) == 0 );
+    TESTCASE( _PDCLIB_filelist == file2 );
+    TESTCASE( fclose( file2 ) == 0 );
+    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