From 1e965466e420902c02a338a68916dff500478cd8 Mon Sep 17 00:00:00 2001
From: Joshua Rogers <joshua@joshua.hu>
Date: Fri, 12 Jan 2024 01:21:14 +0700
Subject: [PATCH] Empty resolved file is not allowed.

---
 Snake.nocomments.sh | 1 +
 Snake.sh            | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/Snake.nocomments.sh b/Snake.nocomments.sh
index 555ec20..23c73bc 100644
--- a/Snake.nocomments.sh
+++ b/Snake.nocomments.sh
@@ -596,6 +596,7 @@ unresolved_key_file="$1"
 [[ -v 'priv_keys_files["$unresolved_key_file"]' || ${#priv_keys_files["$unresolved_key_file"]} -gt 0 ]] && return 0
 [[ -v 'key_files["$unresolved_key_file"]' || ${#key_files["$unresolved_key_file"]} -gt 0 ]] && return 1
 key_file="$(${s} readlink -f -- "$unresolved_key_file" 2>/dev/null)"
+[[ -z "$key_file" ]] && key_files["$unresolved_key_file"]=1 && return 1
 [[ -v 'priv_keys_files["$key_file"]' || ${#priv_keys_files["$key_file"]} -gt 0 ]] && priv_keys_files["$unresolved_key_file"]=1 && return 0
 [[ -v 'key_files["$key_file"]' || ${#key_files["$key_file"]} -gt 0 ]] && key_files["$unresolved_key_file"]=1 && return 1
 key_files["$unresolved_key_file"]=1
diff --git a/Snake.sh b/Snake.sh
index 8882917..ce12fff 100755
--- a/Snake.sh
+++ b/Snake.sh
@@ -1020,6 +1020,8 @@ check_and_populate_keys() {
 
   key_file="$(${s} readlink -f -- "$unresolved_key_file" 2>/dev/null)" # use sudo because it may be a symlink in a priviliged location, not that it would really matter (ssh will just use the symlink)
 
+  [[ -z "$key_file" ]] && key_files["$unresolved_key_file"]=1 && return 1
+
   [[ -v 'priv_keys_files["$key_file"]' || ${#priv_keys_files["$key_file"]} -gt 0 ]] && priv_keys_files["$unresolved_key_file"]=1 && return 0
   [[ -v 'key_files["$key_file"]' || ${#key_files["$key_file"]} -gt 0 ]] && key_files["$unresolved_key_file"]=1 && return 1