Function execveat

pub unsafe fn execveat<P>(
    fd: i32,
    filename: P,
    argv: &[P],
    env: &[P],
    flags: i32,
) -> Result<(), i32> 
where
    P: AsRef<Path>,

Available on crate feature dep_nc only.

Execute a new program relative to a directory file descriptor.

Examples

Specify program file via filename:

let args = ["ls", "-l", "-a"];
let env = ["DISPLAY=:0"];
let ret = unsafe { nc::execveat(nc::AT_FDCWD, "/bin/ls", &args, &env, 0) };
assert!(ret.is_ok());

Or via an opened file descriptor fd, leaving filename empty:

let args = ["ls", "-l", "-a"];
let env = ["DISPLAY=:0"];
let ret = unsafe { nc::openat(nc::AT_FDCWD, "/bin/ls", nc::O_RDONLY | nc::O_CLOEXEC, 0) };
assert!(ret.is_ok());
let fd = ret.unwrap();
let ret = unsafe { nc::execveat(fd, "", &args, &env, nc::AT_EMPTY_PATH) };
assert!(ret.is_ok());