1 files changed, 8 insertions, 0 deletions
diff --git a/userland/libc/string/strlen.c b/userland/libc/string/strlen.c
new file mode 100644
index 0000000..8e3e77a
--- /dev/null
+++ b/userland/libc/string/strlen.c
@@ -0,0 +1,8 @@
+#include <string.h>
+
+size_t strlen(const char *s) {
+  const char *d = s;
+  for (; *s; s++)
+    ;
+  return s - d;
+}