Rust

Set a Remote File's POSIX Permissions

Demonstrates the Chilkat SFtp.SetPermissions method, which sets the POSIX permission bits of a remote item. The arguments are the remote path (or handle), whether the first argument is a handle, and the permission bits. Pass the permission bits only, not the file-type bits.

Background: This is the SFTP equivalent of chmod. Common values, written as octal, are 0644 for a normal file, 0600 for a private file, and 0755 for an executable or a directory. In languages without octal literals the same values must be given in decimal or hexadecimal (for example 0755 is decimal 493). Setting an executable bit after uploading a script is the classic use.

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Rust


// Demonstrates the SFtp.SetPermissions method, which sets the POSIX permission bits of a remote
// item.  The 1st argument is the remote path (or handle), the 2nd (isHandle) indicates which,
// and the 3rd is the permission bits.

let sftp = chilkat::SFtp::new();

// Connect, authenticate, and initialize the SFTP subsystem.
let port = 22;
if sftp.connect("sftp.example.com", port).is_err() {
    println!("{}", sftp.last_error_text());
    return;
}

// Normally you would not hard-code the password in source.  You should instead obtain it
// from an interactive prompt, environment variable, or a secrets vault.
let password = "mySshPassword".to_string();

if sftp.authenticate_pw("mySshLogin", &password).is_err() {
    println!("{}", sftp.last_error_text());
    return;
}

if sftp.initialize_sftp().is_err() {
    println!("{}", sftp.last_error_text());
    return;
}

// The 1st argument is a path, so isHandle is false.
let is_handle = false;

// Pass the permission bits, not the file-type bits.  0755 gives the owner read/write/execute and
// read/execute to group and others -- a common mode for an executable script.
let permissions = 493;
if sftp.set_permissions("subdir/script.sh", is_handle, permissions).is_err() {
    println!("{}", sftp.last_error_text());
    return;
}

println!("Permissions set.");

sftp.disconnect();