zfs send is working. But may crash the application

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "zc"
-version = "0.9.3"
+version = "0.9.4"
 authors = ["Manoel de Souza <[email protected]>"]
 edition = "2018"
 

README.md

@@ -46,6 +46,7 @@ Use TAB key to switch between the modes available.
 
 Use LEFT or RIGHT keys to navigate in between the two windows.
 
+
 **Function Keys per Mode**
 
 |  Key  |       Pool      |    Dataset    |    Snapshot   |     Volume    |

src/command.rs

@@ -1,4 +1,5 @@
 
+use std::io::*;
 use std::process;
 
 pub struct CommandResult {
@@ -127,6 +128,35 @@ pub fn zfs_diff(snapshot_1: String, snapshot_2: String) -> String {
     run_command("zfs", &arguments)
 }
 
+pub fn zfs_send(snapshot_source: String, snapshot_stream: String) {
+
+    let send_arguments = vec!["send", snapshot_source.as_str()];
+
+    let mut send_command = process::Command::new("zfs")
+        .args(send_arguments)
+        .stdout(process::Stdio::piped())
+        .spawn()
+        .unwrap();
+
+    let stream_cmd: Vec<&str> = snapshot_stream.split_whitespace().collect();
+    let stream_arguments = stream_cmd.get(1..).unwrap();
+
+    let mut recv_command = process::Command::new(stream_cmd.get(0).unwrap())
+        .args(stream_arguments)
+        .stdin(process::Stdio::piped())
+        .stdout(process::Stdio::piped())
+        .spawn()
+        .unwrap();
+
+    if let Some(ref mut stdout) = send_command.stdout {
+        if let Some(ref mut stdin) = recv_command.stdin {
+            let mut buf: Vec<u8> = Vec::new();
+            stdout.read_to_end(&mut buf).unwrap();
+            stdin.write_all(&buf).unwrap();
+        }
+    }
+}
+
 pub fn zpool_get_all(dataset: String) -> String {
 
     let arguments = vec!["get", "all", dataset.as_str()];

src/content.rs

@@ -132,7 +132,15 @@ impl Content {
     }
 
     pub fn key_f3(&mut self) {
-        // TODO
+
+        let selected_elements = self.selected_elements();
+
+        match self.c_type {
+            ContentType::Pools =>     { },
+            ContentType::Datasets =>  { },
+            ContentType::Volumes =>   { },
+            ContentType::Snapshots => { Content::input_snapshot_send(selected_elements); },
+        };
     }
 
     pub fn key_f4(&mut self) {
@@ -337,7 +345,7 @@ impl Content {
     fn input_snapshot_clone(selected_elements: Vec<String>) {
 
         let selected_string = Content::seleted_string(&selected_elements);
-        let title = " Snapshot Clone ";
+        let title = " Clone Snapshot ";
         let prompt = "Enter the name of the new Snapshot";
 
         if let Ok(dataset_name) = dialog::input_dialog(title, prompt, "") {
@@ -359,4 +367,21 @@ impl Content {
 
         dialog::refresh_screen();
     }
+
+    fn input_snapshot_send(selected_elements: Vec<String>) {
+
+        let selected_string = Content::seleted_string(&selected_elements);
+        let title = " Send Snapshot ";
+        let prompt = "Enter the stream to send the snapshot (Use with caution!)";
+
+        if let Ok(snapshots) = dialog::two_input_dialog(title, prompt, selected_string.as_str(), "zfs recv pool/dataset") {
+
+            let snapshot_source = snapshots.0;
+            let snapshot_stream = snapshots.1;
+
+            command::zfs_send(snapshot_source, snapshot_stream);
+        }
+
+        dialog::refresh_screen();
+    }
 }

src/display.rs

@@ -153,7 +153,7 @@ impl Screen {
         let pools_menu     = " 1 Help  2 _____ 3 _____ 4 _____ 5 _____ 6 _____ 7 Scrub 8 Destr 9 GetAl 10 Exit ".to_string();
         let datasets_menu  = " 1 Help  2 _____ 3 _____ 4 _____ 5 Snaps 6 Renam 7 Creat 8 Destr 9 GetAl 10 Exit ".to_string();
         let volumes_menu   = " 1 Help  2 _____ 3 _____ 4 _____ 5 Snaps 6 Renam 7 Creat 8 Destr 9 GetAl 10 Exit ".to_string();
-        let snapshots_menu = " 1 Help  2 Diff  3 _____ 4 _____ 5 Clone 6 Renam 7 RollB 8 Destr 9 GetAl 10 Exit ".to_string();
+        let snapshots_menu = " 1 Help  2 Diff  3 Send  4 _____ 5 Clone 6 Renam 7 RollB 8 Destr 9 GetAl 10 Exit ".to_string();
 
         let mut selected_menu: String;
 

src/main.rs

@@ -9,7 +9,7 @@ mod content;
 
 const NAME: &str = "zc - ZFS Commander";
 const COPYRIGHT: &str = "Copyright (c) 2020, Manoel de Souza <[email protected]>";
-const VERSION: &str = "0.9.3";
+const VERSION: &str = "0.9.4";
 const RELEASE: &str = "30-Jul-2020";
 
 const HELP: &str = r#"
@@ -25,7 +25,7 @@ const HELP: &str = r#"
 |:-----:|:---------------:|:-------------:|:-------------:|:-------------:|
 |  F1   |       Help      |      Help     |      Help     |      Help     |
 |  F2   |         -       |        -      |    zfs diff   |        -      |
-|  F3   |         -       |        -      |        -      |        -      |
+|  F3   |         -       |        -      |    zfs send   |        -      |
 |  F4   |         -       |        -      |        -      |        -      |
 |  F5   |         -       |  zfs snapshot |   zfs clone   |  zfs snapshot |
 |  F6   |         -       |   zfs rename  |   zfs rename  |   zfs rename  |