From: Jim Meyering <jim@meyering.net>
Date: Fri, 1 Feb 2002 09:12:50 +0000 (+0000)
Subject: (start_lines): Handle the case in which bytes_read is zero.
X-Git-Tag: TEXTUTILS-2_0_21~131
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=31cb36e88f2ab50493d3badd12c021746d2b4e2c;p=thirdparty%2Fcoreutils.git

(start_lines): Handle the case in which bytes_read is zero.
---

diff --git a/src/tail.c b/src/tail.c
index 684cf1397e..f94a075cfe 100644
--- a/src/tail.c
+++ b/src/tail.c
@@ -756,6 +756,9 @@ start_lines (const char *pretty_filename, int fd, long int n_lines)
   int bytes_read = 0;
   int bytes_to_skip = 0;
 
+  if (n_lines == 0)
+    return 0;
+
   while (n_lines && (bytes_read = safe_read (fd, buffer, BUFSIZ)) > 0)
     {
       bytes_to_skip = 0;