From 16b2e1be75ae80dd2c3df4067fac45d33454f9d5 Mon Sep 17 00:00:00 2001
From: Dylan Araps <dylan.araps@gmail.com>
Date: Wed, 25 Nov 2020 08:49:32 +0200
Subject: [PATCH] kiss: Fix crash caused by sh256(). Closes #204

---
 kiss | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/kiss b/kiss
index 73e401b..298e7b0 100755
--- a/kiss
+++ b/kiss
@@ -113,17 +113,19 @@ sh256() {
     # All utilities must match 'sha256sum' output.
     #
     # Example: '<checksum>  <file>'
-    [ -f "$1" ] || return 0
 
-    hash=$(
-        sha256sum               "$1" ||
-        sha256 -r               "$1" ||
-        openssl dgst -sha256 -r "$1" ||
-        shasum -a 256           "$1" ||
-        digest -a sha256        "$1"
-    )
+    # Skip non-files and broken symlinks.
+    if { [ -h "$1" ] && [ -e "$1" ] } || [ -f "$1" ]; then
+        hash=$(
+            sha256sum               "$1" ||
+            sha256 -r               "$1" ||
+            openssl dgst -sha256 -r "$1" ||
+            shasum -a 256           "$1" ||
+            digest -a sha256        "$1"
+        )
 
-    printf '%s\n' "${hash%% *}"
+        printf '%s\n' "${hash%% *}"
+    fi
 }
 
 pkg_lint() {