From: Karel Zak <kzak@redhat.com>
Date: Thu, 4 Nov 2010 21:22:49 +0000 (+0100)
Subject: column: segfault on empty input
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3f7fc4d43b61e442b81937aa06e079950a8ebb7c;p=util-linux

column: segfault on empty input

Addresses: https://bugzilla.redhat.com/show_bug.cgi?id=579955
Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/text-utils/column.c b/text-utils/column.c
index 87a6fc79..5b52339f 100644
--- a/text-utils/column.c
+++ b/text-utils/column.c
@@ -308,8 +308,10 @@ maketbl()
 			for (i = lens[coloff] - t->len[coloff] + 2; i > 0; i--)
 				putwchar(' ');
 		}
-		fputws(t->list[coloff], stdout);
-		putwchar('\n');
+		if (coloff < t->cols) {
+			fputws(t->list[coloff], stdout);
+			putwchar('\n');
+		}
 	}
 }