apt-key errors out nicely if wget is not installed (Closes: #545754)

1 files changed, 8 insertions, 1 deletions

diff --git a/cmdline/apt-key b/cmdline/apt-key
index 5f4e02fdf..24010edf3 100755
--- a/cmdline/apt-key
+++ b/cmdline/apt-key
@@ -56,7 +56,14 @@ add_keys_with_verify_against_master_keyring() {
 # (otherwise it does not make sense from a security POV)
 net_update() {
     if [ -z "$ARCHIVE_KEYRING_URI" ]; then
-	echo "ERROR: no location for the archive-keyring given" 
+	echo "ERROR: no location for the archive-keyring given"
+	exit 1
+    fi
+    # in theory we would need to depend on wget for this, but this feature
+    # isn't useable in debian anyway as we have no keyring uri nor a master key
+    if ! which wget >/dev/null 2>&1; then
+	echo "ERROR: an installed wget is required for a network-based update"
+	exit 1
     fi
     if [ ! -d /var/lib/apt/keyrings ]; then
 	mkdir -p /var/lib/apt/keyrings