fix rdomain compilation errors

openbsd-compat/port-net.c

@@ -74,7 +74,7 @@ sys_set_rdomain(int fd, const char *name)
 }
 
 int
-valid_rdomain(const char *name)
+sys_valid_rdomain(const char *name)
 {
 	int fd;
 

openbsd-compat/port-net.h

@@ -37,7 +37,7 @@ u_char	*sys_tun_outfilter(struct ssh *, struct Channel *, u_char **, size_t *);
 # define HAVE_SYS_VALID_RDOMAIN
 char *sys_get_rdomain(int fd);
 int sys_set_rdomain(int fd, const char *name);
-int valid_rdomain(const char *name);
+int sys_valid_rdomain(const char *name);
 #endif
 
 #if defined(SYS_RDOMAIN_XXX)

servconf.c

@@ -736,7 +736,7 @@ static int
 valid_rdomain(const char *name)
 {
 #if defined(HAVE_SYS_VALID_RDOMAIN)
-	return valid_rdomain(name)
+	return sys_valid_rdomain(name);
 #elif defined(__OpenBSD__)
 	const char *errstr;
 	long long num;