Fix a shadowed variable wrt EINTR handling in isTCPSocketUsable()

This would have prevented us from looping as long as we keep getting
interrupted.
Reported by GCC with -Wshadow enabled.

diff --git a/pdns/iputils.cc b/pdns/iputils.cc
index 6549431d12c683a2485825116567eace148ad4b0..d6facc02958f314afa2bf0bcc25e26fc317638a7 100644 (file)
--- a/pdns/iputils.cc
+++ b/pdns/iputils.cc
@@ -425,7 +425,7 @@ bool isTCPSocketUsable(int sock)
       return false;
     }
     else {
-      int err = errno;
+      err = errno;
 
       if (err == EAGAIN || err == EWOULDBLOCK) {
         /* socket is usable, no data waiting */