Function ff_recvmsg

lib/ff_syscall_wrapper.c:1305–1329

* It is considered here that the upper 4 bytes of * msg->iovlen and msg->msg_controllen in linux_msghdr are 0. */

 * msg->iovlen and msg->msg_controllen in linux_msghdr are 0.
 */
ssize_t
ff_recvmsg(int s, struct msghdr *msg, int flags)
{
    int rc, ret;
    struct msghdr freebsd_msg;

    ret = linux2freebsd_msghdr((struct linux_msghdr *)msg, &freebsd_msg, 0);
    if (ret < 0) {
        rc = EINVAL;
        goto kern_fail;
    }
    freebsd_msg.msg_flags = flags;

    if ((rc = kern_recvit(curthread, s, &freebsd_msg, UIO_SYSSPACE, NULL))) {
        goto kern_fail;
    }
    rc = curthread->td_retval[0];

    freebsd2linux_msghdr((struct linux_msghdr *)msg, &freebsd_msg, 0);

    return (rc);
kern_fail:
    ff_os_errno(rc);
    return (-1);
}

int
ff_fcntl(int fd, int cmd, ...)