Add real check_system values

lib/vintage_net_wifi.ex

@@ -3,6 +3,7 @@ defmodule VintageNetWiFi do
 
   require Logger
 
+  alias VintageNet.Command
   alias VintageNet.Interface.RawConfig
   alias VintageNet.IP.{DhcpdConfig, DnsdConfig, IPv4Config}
   alias VintageNetWiFi.{WPA2, WPASupplicant}
@@ -310,9 +311,14 @@ defmodule VintageNetWiFi do
   end
 
   @impl true
-  def check_system(_opts) do
-    # TODO
-    :ok
+  def check_system(opts) do
+    with :ok <- Command.verify_program(opts, :bin_wpa_supplicant),
+         :ok <- Command.verify_program(opts, :bin_udhcpc),
+         :ok <- Command.verify_program(opts, :bin_udhcpd),
+         :ok <- Command.verify_program(opts, :bin_dnsd),
+         :ok <- Command.verify_program(opts, :bin_ip) do
+      :ok
+    end
   end
 
   defp wifi_to_supplicant_contents(wifi, control_interface_dir, regulatory_domain) do

mix.exs

@@ -65,7 +65,7 @@ defmodule VintageNetWiFi.MixProject do
 
   defp deps do
     [
-      {:vintage_net, "~> 0.8.0"},
+      {:vintage_net, github: "nerves-networking/vintage_net", branch: "verify-system"},
       {:credo, "~> 1.2", only: :test, runtime: false},
       {:dialyxir, "~> 1.0.0", only: [:dev, :test], runtime: false},
       {:elixir_make, "~> 0.6", runtime: false},

mix.lock

@@ -21,5 +21,5 @@
   "parse_trans": {:hex, :parse_trans, "3.3.0", "09765507a3c7590a784615cfd421d101aec25098d50b89d7aa1d66646bc571c1", [:rebar3], [], "hexpm", "17ef63abde837ad30680ea7f857dd9e7ced9476cdd7b0394432af4bfc241b960"},
   "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
   "unicode_util_compat": {:hex, :unicode_util_compat, "0.5.0", "8516502659002cec19e244ebd90d312183064be95025a319a6c7e89f4bccd65b", [:rebar3], [], "hexpm", "d48d002e15f5cc105a696cf2f1bbb3fc72b4b770a184d8420c8db20da2674b38"},
-  "vintage_net": {:hex, :vintage_net, "0.8.0", "6d8788c3a6cfddb8b98bacd30d1c58edf29ddb61130667496828129577dca790", [:make, :mix], [{:busybox, "~> 0.1.5", [hex: :busybox, repo: "hexpm", optional: true]}, {:elixir_make, "~> 0.6", [hex: :elixir_make, repo: "hexpm", optional: false]}, {:gen_state_machine, "~> 2.0.0 or ~> 2.1.0", [hex: :gen_state_machine, repo: "hexpm", optional: false]}, {:muontrap, "~> 0.5.1 or ~> 0.6.0", [hex: :muontrap, repo: "hexpm", optional: false]}], "hexpm", "492cdec21b8ee9c2a3bb0dfd6fa12d1f2aadb19875c1bf3f780dc5b899dde9eb"},
+  "vintage_net": {:git, "https://github.com/nerves-networking/vintage_net.git", "625dfb95e2d11387fd1dcc784daf36a43a6ee4cc", [branch: "verify-system"]},
 }

test/vintage_net_wifi_test.exs

@@ -1821,4 +1821,17 @@ defmodule VintageNetWiFiTest do
 
     assert output == VintageNetWiFi.to_raw_config("wlan0", input, default_opts())
   end
+
+  test "check_system" do
+    result =
+      VintageNetWiFi.check_system(
+        bin_wpa_supplicant: "/bin/[",
+        bin_udhcpc: "/bin/[",
+        bin_udhcpd: "/bin/[",
+        bin_dnsd: "/bin/[",
+        bin_ip: "/bin/["
+      )
+
+    assert result == :ok
+  end
 end