make stuff actually run in chroot

src/functions/network.rs

@@ -2,8 +2,8 @@ use crate::internal::*;
 
 pub fn set_hostname(hostname: &str) {
     println!("Setting hostname to {}", hostname);
-    files::create_file("/etc/hostname");
-    let return_val = files::append_file("/etc/hostname", hostname);
+    files::create_file("/mnt/etc/hostname");
+    let return_val = files::append_file("/mnt/etc/hostname", hostname);
     match return_val {
         Ok(_) => {
             log(format!("Set hostname to {}", hostname));
@@ -19,7 +19,7 @@ pub fn set_hostname(hostname: &str) {
 
 pub fn enable_ipv6(ipv6: bool) {
     if ipv6 {
-        let return_val = files::append_file("/etc/hosts", "::1 localhost");
+        let return_val = files::append_file("/mnt/etc/hosts", "::1 localhost");
         match return_val {
             Ok(_) => {
                 log("Enabled IPv6".to_string());

src/functions/users.rs

@@ -2,7 +2,7 @@ use crate::internal::exec::*;
 use crate::internal::*;
 
 pub fn new_user(username: &str, hasroot: bool, password: &str) {
-    let return_val = exec(
+    let return_val = exec_chroot(
         "useradd",
         vec![
             String::from("-m"),
@@ -23,7 +23,7 @@ pub fn new_user(username: &str, hasroot: bool, password: &str) {
         }
     }
     if hasroot {
-        let return_val = exec(
+        let return_val = exec_chroot(
             "usermod",
             vec![
                 String::from("-a"),
@@ -41,11 +41,9 @@ pub fn new_user(username: &str, hasroot: bool, password: &str) {
             }
         }
     }
-    let return_val = exec(
-        "arch-chroot",
+    let return_val = exec_chroot(
+        "usermod",
         vec![
-            String::from("/mnt"),
-            String::from("usermod"),
             String::from("--password"),
             String::from("$(echo"),
             String::from(format!("${}", password)),
@@ -72,11 +70,9 @@ pub fn new_user(username: &str, hasroot: bool, password: &str) {
 
 pub fn root_pass(root_pass: &str) {
     println!("Setting root password to '{}'", root_pass);
-    let return_val = exec(
-        "arch-chroot",
+    let return_val = exec_chroot(
+        "usermod",
         vec![
-            String::from("/mnt"),
-            String::from("usermod"),
             String::from("--password"),
             String::from("$(echo"),
             String::from(format!("${{{}}}", root_pass)),

src/internal/exec.rs

@@ -5,6 +5,11 @@ pub fn exec(command: &str, args: Vec<String>) -> Result<std::process::Output, st
     returncode
 }
 
+pub fn exec_chroot(command: &str, args: Vec<String>) -> Result<std::process::Output, std::io::Error> {
+    let returncode = Command::new("arch-chroot").args(&["/mnt", command]).args(args).output();
+    returncode
+}
+
 pub fn exec_workdir(command: &str, workdir: &str, args: Vec<String>,) -> Result<std::process::Output, std::io::Error> {
     let returncode = Command::new(command).args(args).current_dir(workdir).output();
     returncode