From 4735ee67af6c121929ba8f0f604d3dcfb78dd089 Mon Sep 17 00:00:00 2001
From: Peter Stephenson <pws@users.sourceforge.net>
Date: Sun, 5 Feb 2012 19:28:16 +0000
Subject: 30127: forbid fc from executing history lines in reverse

---
 Src/builtin.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'Src/builtin.c')

diff --git a/Src/builtin.c b/Src/builtin.c
index 71fc04ce1..b43c08235 100644
--- a/Src/builtin.c
+++ b/Src/builtin.c
@@ -1652,6 +1652,12 @@ fclist(FILE *f, Options ops, zlong first, zlong last,
 	last = first;
 	first = tmp;
     }
+    if (first > last) {
+	zwarnnam("fc", "history events are in wrong order, aborted");
+	if (f != stdout)
+	    fclose(f);
+	return 1;
+    }
     /* suppress "no substitution" warning if no substitution is requested */
     if (!subs)
 	fclistdone = 1;
-- 
cgit 1.4.1