1 files changed, 86 insertions, 0 deletions
diff --git a/lib/libc/stdio/fgetws.c b/lib/libc/stdio/fgetws.c
new file mode 100644
index 00000000000..f70b43707fd
--- /dev/null
+++ b/lib/libc/stdio/fgetws.c
@@ -0,0 +1,86 @@
+/*	$OpenBSD: fgetws.c,v 1.1 2005/06/17 20:40:32 espie Exp $	*/
+/* $NetBSD: fgetws.c,v 1.1 2003/03/07 07:11:37 tshiozak 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
+ *
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+static char rcsid[] = "$OpenBSD: fgetws.c,v 1.1 2005/06/17 20:40:32 espie Exp $";
+#endif /* LIBC_SCCS and not lint */
+
+#include <errno.h>
+#include <stdio.h>
+#include <wchar.h>
+#include "local.h"
+
+wchar_t *
+fgetws(ws, n, fp)
+	wchar_t * __restrict ws;
+	int n;
+	FILE * __restrict fp;
+{
+	wchar_t *wsp;
+	wint_t wc;
+
+	flockfile(fp);
+	_SET_ORIENTATION(fp, 1);
+
+	if (n <= 0) {
+		errno = EINVAL;
+		goto error;
+	}
+
+	wsp = ws;
+	while (n-- > 1) {
+		if ((wc = __fgetwc_unlock(fp)) == WEOF && errno == EILSEQ) {
+			goto error;
+		}
+		if (wc == WEOF) {
+			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);
+}