g_strdup(NULL) returns NULL; simplify

[qemu.git] / slirp / main.h

diff --git a/slirp/main.h b/slirp/main.h
index bf601e223da27cb5c6487f53f6faefdd74a8cdba..66e4f9252fe162052a1c1fc243fb28d0f5cdd361 100644 (file)
--- a/slirp/main.h
+++ b/slirp/main.h
@@ -4,6 +4,8 @@
  * Please read the file COPYRIGHT for the
  * terms and conditions of the copyright.
  */
+#ifndef SLIRP_MAIN_H
+#define SLIRP_MAIN_H 1
 
 #ifdef HAVE_SYS_SELECT_H
 #include <sys/select.h>
@@ -31,7 +33,7 @@ extern char *exec_shell;
 extern u_int curtime;
 extern fd_set *global_readfds, *global_writefds, *global_xfds;
 extern struct in_addr loopback_addr;
-extern in_addr_t loopback_mask;
+extern unsigned long loopback_mask;
 extern char *username;
 extern char *socket_path;
 extern int towrite_max;
@@ -45,3 +47,5 @@ extern int tcp_keepintvl;
 
 int if_encap(Slirp *slirp, struct mbuf *ifm);
 ssize_t slirp_send(struct socket *so, const void *buf, size_t len, int flags);
+
+#endif