/* Copyright (C) 1991, 1995, 1996, 1998 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Library General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for more details. You should have received a copy of the GNU Library General Public License along with the GNU C Library; see the file COPYING.LIB. If not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include <stddef.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <errno.h> /* Close a stream. */ int fclose (stream) FILE *stream; { int status; if (!__validfp (stream)) { __set_errno (EINVAL); return EOF; } if (stream->__mode.__write && /* Flush the buffer. */ __flshfp (stream, EOF) == EOF) return EOF; /* Free the buffer's storage. */ if (stream->__buffer != NULL && !stream->__userbuf) free (stream->__buffer); /* Close the system file descriptor. */ if (stream->__io_funcs.__close != NULL) status = (*stream->__io_funcs.__close) (stream->__cookie); else if (!stream->__seen && stream->__cookie != NULL) status = __stdio_close (stream->__cookie); else status = 0; /* Nuke the stream, making it available for re-use. */ __invalidate (stream); return status < 0 ? EOF : 0; }