slirp: Port redirection option behave differently on Linux and Windows

port redirection code uses SO_REUSEADDR socket option before binding to host port. Behavior of SO_REUSEADDR is different on Windows and Linux. Relaunching QEMU with same host and guest port redirection values on Linux throws error but on Windows it does not throw any error. Problem is discussed in http://lists.gnu.org/archive/html/qemu-devel/2013-04/msg03089.html Signed-off-by: Taimoor Mirza <[email protected]> Signed-off-by: Michael Tokarev <[email protected]>
nanamiwang · Sep 1, 2013 · efcb7e4 · efcb7e4
1 parent 4ff78e0
commit efcb7e4
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/slirp/socket.c b/slirp/socket.c
@@ -627,7 +627,9 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 	addr.sin_port = hport;
 
 	if (((s = qemu_socket(AF_INET,SOCK_STREAM,0)) < 0) ||
+#ifndef _WIN32
 	    (qemu_setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof(int)) < 0) ||
+#endif
 	    (bind(s,(struct sockaddr *)&addr, sizeof(addr)) < 0) ||
 	    (listen(s,1) < 0)) {
 		int tmperrno = errno; /* Don't clobber the real reason we failed */