nc 0.9.7

Access system calls directly
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23

/// Get options on sockets
pub unsafe fn getsockopt2(
    sockfd: i32,
    level: i32,
    optname: i32,
    optval: &mut usize,
    optlen: &mut socklen_t,
) -> Result<(), Errno> {
    let sockfd = sockfd as usize;
    let level = level as usize;
    let optname = optname as usize;
    let optval_ptr = optval as *mut usize as usize;
    let optlen_ptr = optlen as *mut socklen_t as usize;
    syscall5(
        SYS_GETSOCKOPT2,
        sockfd,
        level,
        optname,
        optval_ptr,
        optlen_ptr,
    )
    .map(drop)
}