1 files changed, 87 insertions, 0 deletions

diff --git a/lib/libc/stdio/local.h b/lib/libc/stdio/local.h
new file mode 100644
index 000000000000..cbc07a9d727b
--- /dev/null
+++ b/lib/libc/stdio/local.h
@@ -0,0 +1,87 @@
+/*-
+ * 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.
+ *
+ *	@(#)local.h	8.3 (Berkeley) 7/3/94
+ */
+
+/*
+ * Information local to this implementation of stdio,
+ * in particular, macros and private variables.
+ */
+
+extern int	__sflush __P((FILE *));
+extern FILE	*__sfp __P((void));
+extern int	__srefill __P((FILE *));
+extern int	__sread __P((void *, char *, int));
+extern int	__swrite __P((void *, char const *, int));
+extern fpos_t	__sseek __P((void *, fpos_t, int));
+extern int	__sclose __P((void *));
+extern void	__sinit __P((void));
+extern void	_cleanup __P((void));
+extern void	(*__cleanup) __P((void));
+extern void	__smakebuf __P((FILE *));
+extern int	__swhatbuf __P((FILE *, size_t *, int *));
+extern int	_fwalk __P((int (*)(FILE *)));
+extern int	__swsetup __P((FILE *));
+extern int	__sflags __P((const char *, int *));
+
+extern int	__sdidinit;
+
+/*
+ * Return true iff the given FILE cannot be written now.
+ */
+#define	cantwrite(fp) \
+	((((fp)->_flags & __SWR) == 0 || (fp)->_bf._base == NULL) && \
+	 __swsetup(fp))
+
+/*
+ * Test whether the given stdio file has an active ungetc buffer;
+ * release such a buffer, without restoring ordinary unread data.
+ */
+#define	HASUB(fp) ((fp)->_ub._base != NULL)
+#define	FREEUB(fp) { \
+	if ((fp)->_ub._base != (fp)->_ubuf) \
+		free((char *)(fp)->_ub._base); \
+	(fp)->_ub._base = NULL; \
+}
+
+/*
+ * test for an fgetln() buffer.
+ */
+#define	HASLB(fp) ((fp)->_lb._base != NULL)
+#define	FREELB(fp) { \
+	free((char *)(fp)->_lb._base); \
+	(fp)->_lb._base = NULL; \
+}