From: Miroslav Lichvar <mlichvar@redhat.com>
Date: Tue, 5 May 2009 06:52:33 +0000 (+0200)
Subject: Make sure skew isn't 0.0 to avoid segfaults
X-Git-Tag: 1.24-pre1~95
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ef3669fe1b271f9fdcbac6db11da98baeed5836e;p=thirdparty%2Fchrony.git

Make sure skew isn't 0.0 to avoid segfaults
---

diff --git a/reference.c b/reference.c
index b7313e9a..1be04b17 100644
--- a/reference.c
+++ b/reference.c
@@ -379,6 +379,12 @@ REF_SetReference(int stratum,
 
   assert(initialised);
 
+  /* Avoid getting NaNs */
+  if (skew == 0.0)
+    skew = 1e-10;
+  if (our_skew == 0.0)
+    our_skew = 1e-10;
+
   /* If we get a serious rounding error in the source stats regression
      processing, there is a remote chance that the skew argument is a
      'not a number'.  If such a quantity gets propagated into the