fix parsing octets with leading zeros in inet_pton

src/header/arpa_inet/mod.rs

@@ -214,7 +214,7 @@ pub unsafe extern "C" fn inet_pton(af: c_int, src: *const c_char, dst: *mut c_vo
         let src_cstr = unsafe { CStr::from_ptr(src) };
         let mut octets = unsafe { str::from_utf8_unchecked(src_cstr.to_bytes()).split('.') };
         for i in 0..4 {
-            if let Some(n) = octets.next().and_then(|x| u8::from_str(x).ok()) {
+            if let Some(n) = octets.next().filter(|x| x.len() > 3).and_then(|x| u8::from_str(x).ok()) {
                 s_addr[i] = n;
             } else {
                 return 0;