Function write

pub unsafe fn write(fd: i32, buf: &[u8]) -> Result<isize, i32> 

Available on crate feature dep_nc only.

Write to a file descriptor.

Examples

let path = "/tmp/nc-write";
let ret = unsafe { nc::openat(nc::AT_FDCWD, path, nc::O_CREAT | nc::O_WRONLY, 0o644) };
assert!(ret.is_ok());
let fd = ret.unwrap();
let msg = b"Hello, Rust!";
let ret = unsafe { nc::write(fd, msg) };
assert!(ret.is_ok());
assert_eq!(ret, Ok(msg.len() as nc::ssize_t));
let ret = unsafe { nc::close(fd) };
assert!(ret.is_ok());
let ret = unsafe { nc::unlinkat(nc::AT_FDCWD, path, 0) };
assert!(ret.is_ok());