1 files changed, 9 insertions, 0 deletions
diff --git a/user/lib/memcmp.c b/user/lib/memcmp.c
new file mode 100644
index 0000000..7f3dc01
--- /dev/null
+++ b/user/lib/memcmp.c
@@ -0,0 +1,9 @@
+#include <string.h>
+
+int memcmp(const void *restrict vl, const void *restrict vr, size_t n)
+{
+	const unsigned char *l = vl, *r = vr;
+	for (; n && *l == *r; n--, l++, r++)
+		;
+	return n ? *l - *r : 0;
+}