newlib-2.4.0

git-svn-id: svn://kolibrios.org@6536 a494cfbc-eb01-0410-851d-a64ba20cac60

contrib/sdk/sources/newlib/libc/stdio/setlinebuf.c

@@ -0,0 +1,68 @@
+/*
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+/* 
+Modified copy of setbuf.c to support setlinebuf function
+defined as part of BSD.
+Modifications by Gareth Pearce, 2001.
+*/
+
+/*
+FUNCTION
+<<setlinebuf>>---specify line buffering for a file or stream
+
+INDEX
+	setlinebuf
+
+ANSI_SYNOPSIS
+	#include <stdio.h>
+	void setlinebuf(FILE *<[fp]>);
+
+TRAD_SYNOPSIS
+	#include <stdio.h>
+	void setlinebuf(<[fp]>)
+	FILE *<[fp]>;
+
+DESCRIPTION
+<<setlinebuf>> specifies that output to the file or stream identified by
+<[fp]> should be line buffered.  This causes the file or stream to pass
+on output to the host system at every newline, as well as when the
+buffer is full, or when an input operation intervenes.
+
+WARNINGS
+You may only use <<setlinebuf>> before performing any file operation
+other than opening the file.
+
+RETURNS
+<<setlinebuf>> returns as per setvbuf.
+
+PORTABILITY
+This function comes from BSD not ANSI or POSIX.
+
+Supporting OS subroutines required: <<close>>, <<fstat>>, <<isatty>>,
+<<lseek>>, <<read>>, <<sbrk>>, <<write>>.
+*/
+
+#include <_ansi.h>
+#include <stdio.h>
+#include "local.h"
+
+int
+_DEFUN(setlinebuf, (fp),
+       FILE * fp)
+{
+  return (setvbuf (fp, (char *) NULL, _IOLBF, (size_t) 0));
+}