diff --git a/include/bits/sys/socket.h b/include/bits/sys/socket.h
index 95d9031232..b7a2e57705 100644
--- a/include/bits/sys/socket.h
+++ b/include/bits/sys/socket.h
@@ -13,4 +13,20 @@ struct ucred {
 	gid_t gid;
 };
 
+// These definitions were taken from musl, license MIT {
+#define __CMSG_LEN(cmsg) (((cmsg)->cmsg_len + sizeof(long) - 1) & ~(long)(sizeof(long) - 1))
+#define __CMSG_NEXT(cmsg) ((unsigned char *)(cmsg) + __CMSG_LEN(cmsg))
+#define __MHDR_END(mhdr) ((unsigned char *)(mhdr)->msg_control + (mhdr)->msg_controllen)
+
+#define CMSG_DATA(cmsg) ((unsigned char *) (((struct cmsghdr *)(cmsg)) + 1))
+#define CMSG_NXTHDR(mhdr, cmsg) ((cmsg)->cmsg_len < sizeof (struct cmsghdr) || \
+	__CMSG_LEN(cmsg) + sizeof(struct cmsghdr) >= __MHDR_END(mhdr) - (unsigned char *)(cmsg) \
+	? 0 : (struct cmsghdr *)__CMSG_NEXT(cmsg))
+#define CMSG_FIRSTHDR(mhdr) ((size_t) (mhdr)->msg_controllen >= sizeof (struct cmsghdr) ? (struct cmsghdr *) (mhdr)->msg_control : (struct cmsghdr *) 0)
+
+#define CMSG_ALIGN(len) (((len) + sizeof (size_t) - 1) & (size_t) ~(sizeof (size_t) - 1))
+#define CMSG_SPACE(len) (CMSG_ALIGN (len) + CMSG_ALIGN (sizeof (struct cmsghdr)))
+#define CMSG_LEN(len)   (CMSG_ALIGN (sizeof (struct cmsghdr)) + (len))
+// } from musl, license MIT
+
 #endif // _BITS_SYS_SOCKET_H
diff --git a/src/header/sys_socket/mod.rs b/src/header/sys_socket/mod.rs
index cf07bfe990..58f9e5912a 100644
--- a/src/header/sys_socket/mod.rs
+++ b/src/header/sys_socket/mod.rs
@@ -41,6 +41,9 @@ pub struct cmsghdr {
     pub cmsg_type: c_int,
 }
 
+#[no_mangle]
+pub extern "C" fn _cbindgen_export_cmsghdr(cmsghdr: cmsghdr) {}
+
 #[repr(C)]
 #[derive(Default)]
 pub struct sockaddr {
@@ -68,72 +71,6 @@ pub struct sockaddr_storage {
     __ss_align: usize,
 }
 
-#[no_mangle]
-pub unsafe extern "C" fn CMSG_ALIGN(len: size_t) -> size_t {
-    (len + mem::size_of::<size_t>() - 1) & !(mem::size_of::<size_t>() - 1)
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn CMSG_LEN(length: c_uint) -> c_uint {
-    (CMSG_ALIGN(mem::size_of::<cmsghdr>()) + length as usize) as c_uint
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn CMSG_SPACE(len: c_uint) -> c_uint {
-    (CMSG_ALIGN(len as size_t) + CMSG_ALIGN(mem::size_of::<cmsghdr>())) as c_uint
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn CMSG_FIRSTHDR(mhdr: *const msghdr) -> *mut cmsghdr {
-    unsafe {
-        if (*mhdr).msg_controllen as usize >= mem::size_of::<cmsghdr>() {
-            (*mhdr).msg_control as *mut cmsghdr
-        } else {
-            0 as *mut cmsghdr
-        }
-    }
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn CMSG_NXTHDR(mhdr: *const msghdr, cmsg: *const cmsghdr) -> *mut cmsghdr {
-    if cmsg.is_null() {
-        return CMSG_FIRSTHDR(mhdr);
-    };
-
-    unsafe {
-        let next = cmsg as usize
-            + CMSG_ALIGN((*cmsg).cmsg_len as usize)
-            + CMSG_ALIGN(mem::size_of::<cmsghdr>());
-        let max = (*mhdr).msg_control as usize + (*mhdr).msg_controllen as usize;
-        if next > max {
-            0 as *mut cmsghdr
-        } else {
-            (cmsg as usize + CMSG_ALIGN((*cmsg).cmsg_len as usize)) as *mut cmsghdr
-        }
-    }
-}
-
-#[no_mangle]
-pub unsafe extern "C" fn CMSG_DATA(cmsg: *const cmsghdr) -> *mut c_uchar {
-    unsafe { (cmsg as *mut c_uchar).offset(CMSG_ALIGN(mem::size_of::<cmsghdr>()) as isize) }
-}
-
-#[no_mangle]
-pub fn __MHDR_END(mhdr: *const msghdr) -> *mut c_uchar {
-    unsafe { (*mhdr).msg_control.offset((*mhdr).msg_controllen as isize) }.cast()
-}
-
-#[no_mangle]
-pub fn __CMSG_LEN(cmsg: *const cmsghdr) -> ssize_t {
-    ((unsafe { (*cmsg).cmsg_len as size_t } + mem::size_of::<c_long>() - 1)
-        & !(mem::size_of::<c_long>() - 1)) as ssize_t
-}
-
-#[no_mangle]
-pub fn __CMSG_NEXT(cmsg: *const cmsghdr) -> *mut c_uchar {
-    (unsafe { cmsg.offset(__CMSG_LEN(cmsg)) }) as *mut c_uchar
-}
-
 #[no_mangle]
 pub unsafe extern "C" fn accept(
     socket: c_int,