From c298e32942b60d786587ebe1bdd1d117d3745031 Mon Sep 17 00:00:00 2001
From: Yorhel <git@yorhel.nl>
Date: Thu, 6 Sep 2012 09:33:58 +0200
Subject: [PATCH] Check that stdin is a tty when initializing ncurses
---
src/main.c | 10 +++++++++-
1 file changed, 9 insertions(+), 1 deletion(-)
diff --git a/src/main.c b/src/main.c
index 24885f7..64a530c 100644
--- a/src/main.c
+++ b/src/main.c
@@ -216,8 +216,16 @@ static void init_nc() {
if(term)
set_term(term);
ok = !!term;
- } else
+ } else {
+ /* Make sure the user doesn't accidentally pipe in data to ncdu's standard
+ * input without using "-f -". An annoying input sequence could result in
+ * the deletion of your files, which we want to prevent at all costs. */
+ if(!isatty(0)) {
+ fprintf(stderr, "Standard input is not a TTY. Did you mean to import a file using '-f -'?\n");
+ exit(1);
+ }
ok = !!initscr();
+ }
if(!ok) {
fprintf(stderr, "Error while initializing ncurses.\n");
--
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