Add macos version of socketpair

Author: lucic71

rules/socket/tgt_refcount.rs

@@ -15,6 +15,7 @@ fn t3() -> libcc2rs::SockaddrUn {
     Default::default()
 }
 
+#[cfg(target_os = "linux")]
 fn f11(a0: i32, a1: i32, a2: i32, a3: Ptr<i32>) -> i32 {
     use nix::sys::socket::{AddressFamily, SockFlag, SockProtocol, SockType};
     let __out = a3.clone();
@@ -47,6 +48,34 @@ fn f11(a0: i32, a1: i32, a2: i32, a3: Ptr<i32>) -> i32 {
     }
 }
 
+#[cfg(target_os = "macos")]
+fn f11(a0: i32, a1: i32, a2: i32, a3: Ptr<i32>) -> i32 {
+    use nix::sys::socket::{AddressFamily, SockFlag, SockProtocol, SockType};
+    let __out = a3.clone();
+    match (AddressFamily::from_i32(a0), SockType::try_from(a1)) {
+        (Some(__f), Ok(__t)) => {
+            let __proto: Option<SockProtocol> = None;
+            match nix::sys::socket::socketpair(__f, __t, __proto, SockFlag::empty()) {
+                Ok((__a, __b)) => {
+                    __out.write(::std::os::fd::IntoRawFd::into_raw_fd(__a));
+                    __out
+                        .offset(1)
+                        .write(::std::os::fd::IntoRawFd::into_raw_fd(__b));
+                    0
+                }
+                Err(__e) => {
+                    libcc2rs::cpp2rust_errno().write(__e as i32);
+                    -1
+                }
+            }
+        }
+        _ => {
+            libcc2rs::cpp2rust_errno().write(::libc::EINVAL);
+            -1
+        }
+    }
+}
+
 fn f9(a0: i32, a1: AnyPtr, a2: usize, a3: i32) -> isize {
     let __buf = a1.reinterpret_cast::<u8>();
     match __buf.with_slice_mut(a2, |__s| {