From: Shawn Routhier <sar@isc.org>
Date: Tue, 22 Sep 2015 03:01:52 +0000 (-0700)
Subject: [trac4002] Save a copy of the err string in case errno changes under us
X-Git-Tag: trac4045_base~3^2
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=89f646302b1611cda5f0010c736af5085109669f;p=thirdparty%2Fkea.git

[trac4002] Save a copy of the err string in case errno changes under us
---

diff --git a/src/lib/util/signal_set.cc b/src/lib/util/signal_set.cc
index 672a6b5b7c..f2f545e895 100644
--- a/src/lib/util/signal_set.cc
+++ b/src/lib/util/signal_set.cc
@@ -178,9 +178,10 @@ SignalSet::add(const int sig) {
     sa.sa_handler = internalHandler;
     sigfillset(&sa.sa_mask);
     if (sigaction(sig, &sa, 0) < 0) {
+        const char* errmsg = strerror(errno);
         erase(sig);
         isc_throw(SignalSetError, "failed to register a signal handler for"
-                  " signal " << sig << ": " << strerror(errno));
+                  " signal " << sig << ": " << errmsg);
     }
 }