From 02220d2fc45c0239897b0eebbc4edd0159e45212 Mon Sep 17 00:00:00 2001
From: Dirk Wetter <dirk@testssl.sh>
Date: Sun, 24 Dec 2023 10:21:11 +0100
Subject: [PATCH] Bail out if user error bc of umask (3.0 branch)

Implemnation for 3.0, 3.2 see #2450

If a user chose a broken umask testssl.sh will start but emits subsequent errors.
This patch adds two sanity checks whether it is allowed to create and read files in the temp directory.

Fixes #2449
---
 testssl.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/testssl.sh b/testssl.sh
index 6737996..78bfb63 100755
--- a/testssl.sh
+++ b/testssl.sh
@@ -17555,7 +17555,9 @@ maketempf() {
           fi
           TEMPDIR=$(mktemp -d "$PWD/testssl.XXXXXX") || exit $ERR_FCREATE
      fi
-     TMPFILE=$TEMPDIR/tempfile.txt || exit $ERR_FCREATE
+     ls "$TEMPDIR/" 2>/dev/null || fatal "temporary directory needed not readable" $ERR_FCREATE
+     TMPFILE=$TEMPDIR/tempfile.txt
+     touch $TMPFILE 2>/dev/null || fatal "temporary directory needed not writeable" $ERR_FCREATE
      if [[ "$DEBUG" -eq 0 ]]; then
           ERRFILE="/dev/null"
      else