1 files changed, 92 insertions, 0 deletions
diff --git a/StdLib/LibC/Stdio/fgetws.c b/StdLib/LibC/Stdio/fgetws.c
new file mode 100644
index 0000000000..0113557965
--- /dev/null
+++ b/StdLib/LibC/Stdio/fgetws.c
@@ -0,0 +1,92 @@
+/* $NetBSD: fgetws.c,v 1.2 2006/07/03 17:06:36 tnozaki Exp $ */
+
+/*-
+ * Copyright (c) 2002 Tim J. Robbins.
+ * All rights reserved.
+ *
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
+ *
+ * Original version ID:
+ * FreeBSD: src/lib/libc/stdio/fgetws.c,v 1.4 2002/09/20 13:25:40 tjr Exp
+ *
+ */
+#include  <LibConfig.h>
+#include <sys/EfiCdefs.h>
+#if defined(LIB_SCCS) && !defined(lint)
+__RCSID("$NetBSD: fgetws.c,v 1.2 2006/07/03 17:06:36 tnozaki Exp $");
+#endif
+
+#include <assert.h>
+#include <errno.h>
+#include <stdio.h>
+#include <wchar.h>
+#include "reentrant.h"
+#include "local.h"
+
+wchar_t *
+fgetws(
+  wchar_t * __restrict ws,
+  int n,
+  FILE * __restrict fp
+  )
+{
+  wchar_t *wsp;
+  wint_t wc;
+
+  _DIAGASSERT(fp != NULL);
+  _DIAGASSERT(ws != NULL);
+
+  FLOCKFILE(fp);
+  _SET_ORIENTATION(fp, 1);
+
+  if (n <= 0) {
+    errno = EINVAL;
+    goto error;
+  }
+
+  wsp = ws;
+  while (n-- > 1) {
+    wc = __fgetwc_unlock(fp);
+    if (__sferror(fp) != 0)
+      goto error;
+    if (__sfeof(fp) != 0) {
+      if (wsp == ws) {
+        /* EOF/error, no characters read yet. */
+        goto error;
+      }
+      break;
+    }
+    *wsp++ = (wchar_t)wc;
+    if (wc == L'\n') {
+      break;
+    }
+  }
+
+  *wsp++ = L'\0';
+  FUNLOCKFILE(fp);
+
+  return (ws);
+
+error:
+  FUNLOCKFILE(fp);
+  return (NULL);
+}