1 files changed, 8 insertions, 0 deletions
diff --git a/system/lib/libc/musl/src/string/wcsnlen.c b/system/lib/libc/musl/src/string/wcsnlen.c
new file mode 100644
index 00000000..a7763373
--- /dev/null
+++ b/system/lib/libc/musl/src/string/wcsnlen.c
@@ -0,0 +1,8 @@
+#include <wchar.h>
+
+size_t wcsnlen(const wchar_t *s, size_t n)
+{
+	const wchar_t *z = wmemchr(s, 0, n);
+	if (z) n = z-s;
+	return n;
+}