Zig

SCP Download from a Specific Directory

See more SCP Examples

Demonstrates how to download a file using the SCP protocol (Secure Copy Protocol over SSH), from a specific remote directory located on the SSH server. The remote directory can be a path relative to the HOME directory of the SSH user account, or an absolute path on the remote filesystem. Obviously, in both cases the SSH user account must have permission to open and read the file in the specified directory. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    const ssh = try chilkat.Ssh.init();
    defer ssh.deinit();

    // Hostname may be an IP address or hostname:
    const hostname = "www.some-ssh-server.com";
    const port = 22;

    // Connect to an SSH server:
    ssh.connect(hostname, port) catch {
        std.debug.print("{s}\n", .{try ssh.getLastErrorText(alloc)});
        return;
    };

    // Wait a max of 5 seconds when reading responses..
    ssh.setIdleTimeoutMs(5000);

    // Authenticate using login/password:
    ssh.authenticatePw("myLogin", "myPassword") catch {
        std.debug.print("{s}\n", .{try ssh.getLastErrorText(alloc)});
        return;
    };

    // Once the SSH object is connected and authenticated, we use it
    // in our SCP object.
    const scp = try chilkat.Scp.init();
    defer scp.deinit();

    scp.useSsh(ssh) catch {
        std.debug.print("{s}\n", .{try scp.getLastErrorText(alloc)});
        return;
    };

    // This downloads a file from the "testApp/logs/" subdirectory (relative to the SSH user account's HOME directory).
    // For example, if the HOME directory is /Users/chilkat, then the following downloads
    // /Users/chilkat/testApp/logs/test1.log
    var remote_path: [:0]const u8 = "testApp/logs/test1.log";
    var local_path: [:0]const u8 = "c:/testApp/logs/test1.log";
    scp.downloadFile(remote_path, local_path) catch {
        std.debug.print("{s}\n", .{try scp.getLastErrorText(alloc)});
        return;
    };

    // The following call to DownloadFile specifies an absolute file path on the SSH server:
    remote_path = "/Users/chilkat/Documents/gecko.jpg";
    local_path = "c:/temp/images/gecko.jpg";
    scp.downloadFile(remote_path, local_path) catch {
        std.debug.print("{s}\n", .{try scp.getLastErrorText(alloc)});
        return;
    };

    std.debug.print("SCP download file success.\n", .{});

    // Disconnect
    ssh.disconnect();
}