Libc-320.tar.gz

[apple/libc.git] / stdio / wbuf.c

diff --git a/stdio/wbuf.c b/stdio/wbuf.c
deleted file mode 100644 (file)
index c34932a..0000000
--- a/stdio/wbuf.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
- * 
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
- * 
- * The Original Code and all software distributed under the License are
- * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
- * 
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1990, 1993
- *     The Regents of the University of California.  All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * Chris Torek.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- *    must display the following acknowledgement:
- *     This product includes software developed by the University of
- *     California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- *    may be used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-
-#include <stdio.h>
-#include "local.h"
-
-/*
- * Write the given character into the (probably full) buffer for
- * the given file.  Flush the buffer out if it is or becomes full,
- * or if c=='\n' and the file is line buffered.
- */
-int
-__swbuf(c, fp)
-       register int c;
-       register FILE *fp;
-{
-       register int n;
-
-       /*
-        * In case we cannot write, or longjmp takes us out early,
-        * make sure _w is 0 (if fully- or un-buffered) or -_bf._size
-        * (if line buffered) so that we will get called again.
-        * If we did not do this, a sufficient number of putc()
-        * calls might wrap _w from negative to positive.
-        */
-       fp->_w = fp->_lbfsize;
-       if (cantwrite(fp))
-               return (EOF);
-       c = (unsigned char)c;
-
-       /*
-        * If it is completely full, flush it out.  Then, in any case,
-        * stuff c into the buffer.  If this causes the buffer to fill
-        * completely, or if c is '\n' and the file is line buffered,
-        * flush it (perhaps a second time).  The second flush will always
-        * happen on unbuffered streams, where _bf._size==1; fflush()
-        * guarantees that putc() will always call wbuf() by setting _w
-        * to 0, so we need not do anything else.
-        */
-       n = fp->_p - fp->_bf._base;
-       if (n >= fp->_bf._size) {
-               if (fflush(fp))
-                       return (EOF);
-               n = 0;
-       }
-       fp->_w--;
-       *fp->_p++ = c;
-       if (++n == fp->_bf._size || (fp->_flags & __SLBF && c == '\n'))
-               if (fflush(fp))
-                       return (EOF);
-       return (c);
-}