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-rw-r--r--slirp/socket.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/slirp/socket.c b/slirp/socket.c
index 6c18971368..86927722e1 100644
--- a/slirp/socket.c
+++ b/slirp/socket.c
@@ -713,7 +713,9 @@ tcp_listen(Slirp *slirp, uint32_t haddr, u_int hport, uint32_t laddr,
 	    (listen(s,1) < 0)) {
 		int tmperrno = errno; /* Don't clobber the real reason we failed */
 
-		close(s);
+                if (s >= 0) {
+                    closesocket(s);
+                }
 		sofree(so);
 		/* Restore the real errno */
 #ifdef _WIN32