1 files changed, 14 insertions, 0 deletions
diff --git a/lib/libc/string/strlen.c b/lib/libc/string/strlen.c
new file mode 100644
index 00000000..0eb222fa
--- /dev/null
+++ b/lib/libc/string/strlen.c
@@ -0,0 +1,14 @@
+#include <stddef.h>
+
+size_t strlen(const char *str)
+{
+	size_t len = 0;
+
+	if (str == NULL)
+		return 0;
+
+	while (*str++)
+		len++;
+
+	return len;
+}