efi: Add string conversion helper
Signed-off-by: Paul Barker <paul.barker@sancloud.com>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/efi_string.c b/lib/efi_loader/efi_string.c
index 8bf1e49..e21e09c 100644
--- a/lib/efi_loader/efi_string.c
+++ b/lib/efi_loader/efi_string.c
@@ -8,6 +8,7 @@
#include <common.h>
#include <charset.h>
#include <efi_loader.h>
+#include <malloc.h>
/**
* efi_create_indexed_name - create a string name with an index
@@ -41,3 +42,26 @@
return p;
}
+
+/**
+ * efi_convert_string - Convert an ASCII or UTF-8 string to UTF-16
+ * @str: String to be converted
+ *
+ * Return: Converted string in UTF-16 format. The caller is responsible for
+ * freeing this string when it is no longer needed.
+ */
+efi_string_t efi_convert_string(const char *str)
+{
+ efi_string_t str_16, tmp;
+ size_t sz_16;
+
+ sz_16 = utf8_utf16_strlen(str);
+ str_16 = calloc(sz_16 + 1, sizeof(u16));
+ if (!str_16)
+ return NULL;
+
+ tmp = str_16;
+ utf8_utf16_strcpy(&tmp, str);
+
+ return str_16;
+}