From: Jim Meyering <jim@meyering.net>
Date: Mon, 26 Jun 2006 08:39:59 +0000 (+0000)
Subject: Avoid a segfault for wc --files0=- < /dev/null.
X-Git-Tag: v6.0~281
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=6def7f622770acefde65603432c4bf216948d44e;p=thirdparty%2Fcoreutils.git

Avoid a segfault for wc --files0=- < /dev/null.
* src/wc.c (compute_number_width): Return right away if nfiles == 0.
---

diff --git a/ChangeLog b/ChangeLog
index 66673af2da..2efa74a904 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2006-06-26  Jim Meyering  <jim@meyering.net>
+
+	Avoid a segfault for wc --files0=- < /dev/null.
+	* src/wc.c (compute_number_width): Return right away if nfiles == 0.
+
 2006-06-25  Jim Meyering  <jim@meyering.net>
 
 	* NEWS: wc accepts a new option --files0-from=FILE, where FILE
diff --git a/src/wc.c b/src/wc.c
index 29c624015c..1da5373e35 100644
--- a/src/wc.c
+++ b/src/wc.c
@@ -573,7 +573,7 @@ compute_number_width (int nfiles, struct fstatus const *fstatus)
 {
   int width = 1;
 
-  if (fstatus[0].failed <= 0)
+  if (0 < nfiles && fstatus[0].failed <= 0)
     {
       int minimum_width = 1;
       uintmax_t regular_total = 0;