1 files changed, 66 insertions, 0 deletions
diff --git a/lib/libefi/efi_nextvarname.c b/lib/libefi/efi_nextvarname.c
new file mode 100644
index 0000000..e07659f
--- /dev/null
+++ b/lib/libefi/efi_nextvarname.c
@@ -0,0 +1,66 @@
+/*-
+ * Copyright (c) 2010 Marcel Moolenaar
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <libefi.h>
+#include <stdlib.h>
+
+#include "libefi_int.h"
+
+/*
+ * EFI_STATUS
+ * GetNextVariableName(
+ *	IN OUT UINTN	*VariableNameSize,
+ *	IN OUT CHAR16	*VariableName,
+ *	IN OUT EFI_GUID	*VendorGuid
+ *    );
+ */
+
+int
+efi_nextvarname(size_t *namesize, char *name, uuid_t *vendor)
+{
+	struct iodev_efivar_req req;
+	int error;
+
+	req.namesize = *namesize;
+	error = libefi_utf8_to_ucs2(name, &req.namesize, &req.name);
+	if (error)
+		return (error);
+
+	req.vendor = *vendor;
+	req.access = IODEV_EFIVAR_NEXTNAME;
+	error = libefi_efivar(&req);
+	*namesize = req.namesize;
+	if (!error) {
+		error = libefi_ucs2_to_utf8(req.name, namesize, name);
+		if (!error)
+			*vendor = req.vendor;
+	}
+	free(req.name);
+	return (error);
+}