migration

2026-05-26 20:50:50 -06:00
parent ca2a86493c
commit a28c575d60
2 changed files with 9 additions and 0 deletions
@@ -41,6 +41,15 @@ zero_delete_dir () {
    rm -rf "$1"
 }

+# a function to securely zero out and unset a variable# wip;
+ secure_unset_var () {
+    truncate_str=$(printf "%600s" | sed 's/ /0/g') # 600 ascii zeros in a row
+    eval "\$$1=\"$truncate_str\"" # set the new var to the 600 zeros
+    eval "echo \$$1"
+    eval "unset \$$1" # unser string varname
+    unset truncate_str # unset zeros
+}
+
 # nuke file
 ## if shred is available, it zeros the file and deletes it, otherwise rm -f's it
 shred -uz "$mytempfile" || rm -f "$mytempfile"