From 73593e66e738cfb6dbf620ce73642add38697aed Mon Sep 17 00:00:00 2001
From: Heiko Schaefer <heiko@schaefer.name>
Date: Fri, 8 Oct 2021 00:51:01 +0200
Subject: [PATCH] Add "list-cards" tool.

---
 card-functionality/Cargo.toml        |  4 ++++
 card-functionality/src/list-cards.rs | 18 ++++++++++++++++++
 2 files changed, 22 insertions(+)
 create mode 100644 card-functionality/src/list-cards.rs

diff --git a/card-functionality/Cargo.toml b/card-functionality/Cargo.toml
index a0530ae..2c7f016 100644
--- a/card-functionality/Cargo.toml
+++ b/card-functionality/Cargo.toml
@@ -23,6 +23,10 @@ path = "src/keygen.rs"
 name = "other"
 path = "src/other.rs"
 
+[[bin]]
+name = "list-cards"
+path = "src/list-cards.rs"
+
 [dependencies]
 openpgp-card = { path = "../openpgp-card" }
 openpgp-card-sequoia = { path = "../openpgp-card-sequoia" }
diff --git a/card-functionality/src/list-cards.rs b/card-functionality/src/list-cards.rs
new file mode 100644
index 0000000..3767b9e
--- /dev/null
+++ b/card-functionality/src/list-cards.rs
@@ -0,0 +1,18 @@
+// SPDX-FileCopyrightText: 2021 Heiko Schaefer <heiko@schaefer.name>
+// SPDX-License-Identifier: MIT OR Apache-2.0
+
+use anyhow::Result;
+
+use openpgp_card_pcsc::PcscClient;
+use openpgp_card_sequoia::card::Open;
+
+fn main() -> Result<()> {
+    println!("The following OpenPGP cards are connected to your system:");
+
+    for card in PcscClient::cards()? {
+        let open = Open::open_card(card)?;
+        println!(" {}", open.application_identifier()?.ident());
+    }
+
+    Ok(())
+}