From: Jim Meyering <jim@meyering.net>
Date: Wed, 13 Jul 1994 15:45:24 +0000 (+0000)
Subject: (substr): Allocate len+1 bytes (not just len) to leave room for trailing NUL.
X-Git-Tag: textutils-1_12_1~656
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=dd4604716868b41238af0266423edf3bd0aa56ae;p=thirdparty%2Fcoreutils.git

(substr): Allocate len+1 bytes (not just len) to leave room for trailing NUL.
---

diff --git a/src/tr.c b/src/tr.c
index fe899c0fe9..e34eae180a 100644
--- a/src/tr.c
+++ b/src/tr.c
@@ -814,7 +814,7 @@ substr (p, first_idx, last_idx)
      int last_idx;
 {
   int len = last_idx - first_idx + 1;
-  unsigned char *tmp = (unsigned char *) xmalloc (len);
+  unsigned char *tmp = (unsigned char *) xmalloc (len + 1);
 
   assert (first_idx <= last_idx);
   /* We must use bcopy or memcpy rather than strncpy