diff --git a/TODO b/TODO
index d123af4..fa760b1 100644
--- a/TODO
+++ b/TODO
@@ -13,4 +13,6 @@ allow signing using an alternate secret key, like in pcpdecrypt()
 
 support export/import from/to pbp
 
-malloc() new pointers in funcs only if not NULL, e.g. pcp_gennonce()
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+malloc() new pointers in functions only if not NULL, e.g. pcp_gennonce()
+
+generalize file i/0, open+close only in src/, print msg if using stdin or stdout
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