1 files changed, 82 insertions, 0 deletions
diff --git a/StdLib/LibC/Stdio/funopen.c b/StdLib/LibC/Stdio/funopen.c
new file mode 100644
index 0000000000..313af4da08
--- /dev/null
+++ b/StdLib/LibC/Stdio/funopen.c
@@ -0,0 +1,82 @@
+/*  $NetBSD: funopen.c,v 1.10 2005/11/29 03:12:00 christos Exp $  */
+
+/*-
+ * 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. 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  <LibConfig.h>
+#include <sys/EfiCdefs.h>
+#if defined(LIBC_SCCS) && !defined(lint)
+#if 0
+static char sccsid[] = "@(#)funopen.c 8.1 (Berkeley) 6/4/93";
+#else
+__RCSID("$NetBSD: funopen.c,v 1.10 2005/11/29 03:12:00 christos Exp $");
+#endif
+#endif /* LIBC_SCCS and not lint */
+
+#include <stdio.h>
+#include <errno.h>
+#include "reentrant.h"
+#include "local.h"
+
+FILE *
+funopen(cookie, readfn, writefn, seekfn, closefn)
+  const void *cookie;
+  int (*readfn) __P((void *, char *, int));
+  int (*writefn) __P((void *, const char *, int));
+  fpos_t (*seekfn) __P((void *, fpos_t, int));
+  int (*closefn) __P((void *));
+{
+  FILE *fp;
+  int flags;
+
+  if (readfn == NULL) {
+    if (writefn == NULL) {    /* illegal */
+      errno = EINVAL;
+      return (NULL);
+    } else
+      flags = __SWR;    /* write only */
+  } else {
+    if (writefn == NULL)
+      flags = __SRD;    /* read only */
+    else
+      flags = __SRW;    /* read-write */
+  }
+  if ((fp = __sfp()) == NULL)
+    return (NULL);
+  fp->_flags = flags;
+  fp->_file = -1;
+  fp->_cookie = __UNCONST(cookie);
+  fp->_read = readfn;
+  fp->_write = writefn;
+  fp->_seek = seekfn;
+  fp->_close = closefn;
+  return (fp);
+}