From: David Zafman <david.zafman@inktank.com>
Date: Wed, 2 Oct 2013 17:00:10 +0000 (-0700)
Subject: osd: In read_meta() leave an extra byte in buffer to nul terminate
X-Git-Tag: v0.71~38^2~1
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=c0cbd9aa5e5673ebf482458d08ce4f342b0c5493;p=ceph.git

osd: In read_meta() leave an extra byte in buffer to nul terminate

Signed-off-by: David Zafman <david.zafman@inktank.com>
---

diff --git a/src/osd/OSD.cc b/src/osd/OSD.cc
index 9a2fbb5c576..0a2d64ee6e1 100644
--- a/src/osd/OSD.cc
+++ b/src/osd/OSD.cc
@@ -840,7 +840,7 @@ int OSD::read_meta(const  std::string &base, const std::string &file,
     int err = errno;
     return -err;
   }
-  len = safe_read(fd, val, vallen);
+  len = safe_read(fd, val, vallen - 1);
   if (len < 0) {
     TEMP_FAILURE_RETRY(::close(fd));
     return len;