nixio: +socket options SO_DONTROUTE, SO_BINDTODEVICE

diff --git a/libs/nixio/src/sockopt.c b/libs/nixio/src/sockopt.c
index 8884e9a..5965eae 100644 (file)
--- a/libs/nixio/src/sockopt.c
+++ b/libs/nixio/src/sockopt.c
@@ -21,6 +21,7 @@
 #include <sys/socket.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
+#include <net/if.h>
 #include <sys/time.h>
 #include <string.h>
 #include <fcntl.h>
@@ -107,6 +108,26 @@ static int nixio__gso_timev(lua_State *L, int fd, int level, int opt, int set) {
        return nixio__perror(L);
 }
 
+static int nixio__gso_b(lua_State *L, int fd, int level, int opt, int set) {
+       if (!set) {
+               socklen_t optlen = IFNAMSIZ;
+               char ifname[IFNAMSIZ];
+               if (!getsockopt(fd, level, opt, ifname, &optlen)) {
+                       lua_pushlstring(L, ifname, optlen);
+                       return 1;
+               }
+       } else {
+               size_t valuelen;
+               const char *value = luaL_checklstring(L, set, &valuelen);
+               luaL_argcheck(L, valuelen <= IFNAMSIZ, set, "invalid interface name");
+               if (!setsockopt(fd, level, opt, value, valuelen)) {
+                       lua_pushboolean(L, 1);
+                       return 1;
+               }
+       }
+       return nixio__perror(L);
+}
+
 /**
  * get/setsockopt() helper
  */
@@ -133,15 +154,20 @@ static int nixio__getsetsockopt(lua_State *L, int set) {
 #endif
                } else if (!strcmp(option, "broadcast")) {
                        return nixio__gso_int(L, sock->fd, SOL_SOCKET, SO_BROADCAST, set);
+               } else if (!strcmp(option, "dontroute")) {
+                       return nixio__gso_int(L, sock->fd, SOL_SOCKET, SO_DONTROUTE, set);
                } else if (!strcmp(option, "linger")) {
                        return nixio__gso_ling(L, sock->fd, SOL_SOCKET, SO_LINGER, set);
                } else if (!strcmp(option, "sndtimeo")) {
                        return nixio__gso_timev(L, sock->fd, SOL_SOCKET, SO_SNDTIMEO, set);
                } else if (!strcmp(option, "rcvtimeo")) {
                        return nixio__gso_timev(L, sock->fd, SOL_SOCKET, SO_RCVTIMEO, set);
+               } else if (!strcmp(option, "bindtodevice")) {
+                       return nixio__gso_b(L, sock->fd, SOL_SOCKET, SO_BINDTODEVICE, set);
                } else {
                        return luaL_argerror(L, 3, "supported values: keepalive, reuseaddr,"
-                        " sndbuf, rcvbuf, priority, broadcast, linger, sndtimeo, rcvtimeo"
+                        " sndbuf, rcvbuf, priority, broadcast, linger, sndtimeo, rcvtimeo,"
+                        " dontroute, bindtodevice"
                        );
                }
        } else if (!strcmp(level, "tcp")) {