From: Jim Meyering <jim@meyering.net>
Date: Sun, 21 Mar 2004 19:50:17 +0000 (+0000)
Subject: (readtoken): Don't leak 64 bytes when reading an empty input stream.
X-Git-Tag: v5.3.0~1993
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=846d81da01e516cdd9a7965e05f823e7e47abff4;p=thirdparty%2Fcoreutils.git

(readtoken): Don't leak 64 bytes when reading an empty input stream.
---

diff --git a/lib/readtokens.c b/lib/readtokens.c
index 0fe8a9498a..438441c4e5 100644
--- a/lib/readtokens.c
+++ b/lib/readtokens.c
@@ -111,13 +111,14 @@ readtoken (FILE *stream,
   i = 0;
   for (;;)
     {
+      if (c < 0 && i == 0)
+	return -1;
+
       if (i == n)
 	p = x2nrealloc (p, &n, sizeof *p);
 
       if (c < 0)
 	{
-	  if (i == 0)
-	    return -1;
 	  p[i] = 0;
 	  break;
 	}