1 files changed, 19 insertions, 0 deletions
diff --git a/src/stdio/vswscanf.c b/src/stdio/vswscanf.c
new file mode 100644
index 00000000..2c4ffbe0
--- /dev/null
+++ b/src/stdio/vswscanf.c
@@ -0,0 +1,19 @@
+#include <stdio.h>
+#include <string.h>
+#include <wchar.h>
+#include <wctype.h>
+
+#include "__scanf.h"
+
+static void s_read(rctx_t *r)
+{
+	wchar_t *s = r->opaque;
+	if (!s[r->l]) r->c = -1;
+	else r->c = s[r->l++];
+}
+
+int vswscanf(const wchar_t *s, const wchar_t *fmt, va_list ap)
+{
+	rctx_t r = { s_read, (void *)s, 1, iswspace };
+	return __scanf(&r, fmt, ap);
+}