Add support for openbsd routing domain, #95

src/iodine.c

@@ -136,6 +136,7 @@ main(int argc, char **argv)
 	int lazymode;
 	int selecttimeout;
 	int hostname_maxlen;
+	int rtable = 0;
 
 	nameserv_addr = NULL;
 	topdomain = NULL;
@@ -174,7 +175,7 @@ main(int argc, char **argv)
 		__progname++;
 #endif
 
-	while ((choice = getopt(argc, argv, "vfhru:t:d:P:m:M:F:T:O:L:I:")) != -1) {
+	while ((choice = getopt(argc, argv, "vfhru:t:d:R:P:m:M:F:T:O:L:I:")) != -1) {
 		switch(choice) {
 		case 'v':
 			version();
@@ -198,6 +199,9 @@ main(int argc, char **argv)
 		case 'd':
 			device = optarg;
 			break;
+		case 'R':
+			rtable = atoi(optarg);
+			break;
 		case 'P':
 			strncpy(password, optarg, sizeof(password));
 			password[sizeof(password)-1] = 0;
@@ -325,6 +329,10 @@ main(int argc, char **argv)
 		retval = 1;
 		goto cleanup2;
 	}
+#ifdef OPENBSD
+	if (rtable > 0)
+		socket_setrtable(dns_fd, rtable);
+#endif
 
 	signal(SIGINT, sighandler);
 	signal(SIGTERM, sighandler);

src/util.c

@@ -67,3 +67,11 @@ get_resolvconf_addr()
 	return rv;
 }
 
+#ifdef OPENBSD
+void
+socket_setrtable(int fd, int rtable)
+{
+	if (setsockopt (fd, IPPROTO_IP, SO_RTABLE, &rtable, sizeof(rtable)) == -1)
+	    err(1, "Failed to set routing table %d", rtable);
+}
+#endif

src/util.h

@@ -2,5 +2,6 @@
 #define __UTIL_H__
 
 char *get_resolvconf_addr();
+void socket_setrtable(int fd, int rtable);
 
 #endif