/* Copyright (C) 1991, 1992, 1997 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 Lesser General Public License as published by the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; 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> /* Return a new, zeroed, stream. You must set its cookie and io_mode. The first operation will give it a buffer unless you do. It will also give it the default functions unless you set the `seen' flag. Returns NULL if a stream can't be created. */ FILE * __newstream (void) { register FILE *stream; stream = __stdio_head; while (__validfp (stream)) stream = stream->__next; if (stream == NULL) { /* None to reuse. */ stream = (FILE *) malloc (sizeof (FILE)); if (stream == NULL) return NULL; stream->__next = __stdio_head; __stdio_head = stream; } __invalidate (stream); stream->__magic = _IOMAGIC; stream->__offset = (fpos_t) -1; stream->__target = (fpos_t) -1; return stream; }