--- /dev/null
+/*
+ * Copyright (c) 2000, 2005, 2007, 2009, 2010 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * 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.
+ *
+ * @(#)stdio.h 8.5 (Berkeley) 4/29/95
+ */
+
+/*
+ * Common header for stdio.h and xlocale/_stdio.h
+ */
+
+#ifndef __STDIO_H_
+#define __STDIO_H_
+
+#include <sys/cdefs.h>
+#include <Availability.h>
+
+#include <_types.h>
+
+/* DO NOT REMOVE THIS COMMENT: fixincludes needs to see:
+ * __gnuc_va_list and include <stdarg.h> */
+#include <sys/_types/_va_list.h>
+#include <sys/_types/_size_t.h>
+#include <sys/_types/_null.h>
+
+#include <sys/stdio.h>
+
+typedef __darwin_off_t fpos_t;
+
+#define _FSTDIO /* Define for new stdio with functions. */
+
+/*
+ * NB: to fit things in six character monocase externals, the stdio
+ * code uses the prefix `__s' for stdio objects, typically followed
+ * by a three-character attempt at a mnemonic.
+ */
+
+/* stdio buffers */
+struct __sbuf {
+ unsigned char *_base;
+ int _size;
+};
+
+/* hold a buncha junk that would grow the ABI */
+struct __sFILEX;
+
+/*
+ * stdio state variables.
+ *
+ * The following always hold:
+ *
+ * if (_flags&(__SLBF|__SWR)) == (__SLBF|__SWR),
+ * _lbfsize is -_bf._size, else _lbfsize is 0
+ * if _flags&__SRD, _w is 0
+ * if _flags&__SWR, _r is 0
+ *
+ * This ensures that the getc and putc macros (or inline functions) never
+ * try to write or read from a file that is in `read' or `write' mode.
+ * (Moreover, they can, and do, automatically switch from read mode to
+ * write mode, and back, on "r+" and "w+" files.)
+ *
+ * _lbfsize is used only to make the inline line-buffered output stream
+ * code as compact as possible.
+ *
+ * _ub, _up, and _ur are used when ungetc() pushes back more characters
+ * than fit in the current _bf, or when ungetc() pushes back a character
+ * that does not match the previous one in _bf. When this happens,
+ * _ub._base becomes non-nil (i.e., a stream has ungetc() data iff
+ * _ub._base!=NULL) and _up and _ur save the current values of _p and _r.
+ *
+ * NB: see WARNING above before changing the layout of this structure!
+ */
+typedef struct __sFILE {
+ unsigned char *_p; /* current position in (some) buffer */
+ int _r; /* read space left for getc() */
+ int _w; /* write space left for putc() */
+ short _flags; /* flags, below; this FILE is free if 0 */
+ short _file; /* fileno, if Unix descriptor, else -1 */
+ struct __sbuf _bf; /* the buffer (at least 1 byte, if !NULL) */
+ int _lbfsize; /* 0 or -_bf._size, for inline putc */
+
+ /* operations */
+ void *_cookie; /* cookie passed to io functions */
+ int (* _Nullable _close)(void *);
+ int (* _Nullable _read) (void *, char *, int);
+ fpos_t (* _Nullable _seek) (void *, fpos_t, int);
+ int (* _Nullable _write)(void *, const char *, int);
+
+ /* separate buffer for long sequences of ungetc() */
+ struct __sbuf _ub; /* ungetc buffer */
+ struct __sFILEX *_extra; /* additions to FILE to not break ABI */
+ int _ur; /* saved _r when _r is counting ungetc data */
+
+ /* tricks to meet minimum requirements even when malloc() fails */
+ unsigned char _ubuf[3]; /* guarantee an ungetc() buffer */
+ unsigned char _nbuf[1]; /* guarantee a getc() buffer */
+
+ /* separate buffer for fgetln() when line crosses buffer boundary */
+ struct __sbuf _lb; /* buffer for fgetln() */
+
+ /* Unix stdio files get aligned to block boundaries on fseek() */
+ int _blksize; /* stat.st_blksize (may be != _bf._size) */
+ fpos_t _offset; /* current lseek offset (see WARNING) */
+} FILE;
+
+#endif /* __STDIO_H_ */
projects / apple / libc.git / blobdiff