Update LuaSocket to 3.1.0

Also perform minor refactor on how LuaSocket are preloaded.

src/libraries/luasocket/libluasocket/options.c

@@ -2,14 +2,11 @@
 * Common option interface
 * LuaSocket toolkit
 \*=========================================================================*/
-#include <string.h>
-
-#include "lauxlib.h"
-
+#include "luasocket.h"
 #include "auxiliar.h"
 #include "options.h"
 #include "inet.h"
-
+#include <string.h>
 
 /*=========================================================================*\
 * Internal functions prototypes
@@ -37,7 +34,7 @@ int opt_meth_setoption(lua_State *L, p_opt opt, p_socket ps)
     while (opt->name && strcmp(name, opt->name))
         opt++;
     if (!opt->func) {
-        char msg[45];
+        char msg[57];
         sprintf(msg, "unsupported option `%.35s'", name);
         luaL_argerror(L, 2, msg);
     }
@@ -50,13 +47,14 @@ int opt_meth_getoption(lua_State *L, p_opt opt, p_socket ps)
     while (opt->name && strcmp(name, opt->name))
         opt++;
     if (!opt->func) {
-        char msg[45];
+        char msg[57];
         sprintf(msg, "unsupported option `%.35s'", name);
         luaL_argerror(L, 2, msg);
     }
     return opt->func(L, ps);
 }
 
+/*------------------------------------------------------*/
 /* enables reuse of local address */
 int opt_set_reuseaddr(lua_State *L, p_socket ps)
 {
@@ -68,6 +66,7 @@ int opt_get_reuseaddr(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_REUSEADDR);
 }
 
+/*------------------------------------------------------*/
 /* enables reuse of local port */
 int opt_set_reuseport(lua_State *L, p_socket ps)
 {
@@ -79,7 +78,8 @@ int opt_get_reuseport(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_REUSEPORT);
 }
 
-/* disables the Naggle algorithm */
+/*------------------------------------------------------*/
+/* disables the Nagle algorithm */
 int opt_set_tcp_nodelay(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, IPPROTO_TCP, TCP_NODELAY);
@@ -90,6 +90,52 @@ int opt_get_tcp_nodelay(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, IPPROTO_TCP, TCP_NODELAY);
 }
 
+/*------------------------------------------------------*/
+#ifdef TCP_KEEPIDLE
+
+int opt_get_tcp_keepidle(lua_State *L, p_socket ps)
+{
+    return opt_getint(L, ps, IPPROTO_TCP, TCP_KEEPIDLE);
+}
+
+int opt_set_tcp_keepidle(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_KEEPIDLE);
+}
+
+#endif
+
+/*------------------------------------------------------*/
+#ifdef TCP_KEEPCNT
+
+int opt_get_tcp_keepcnt(lua_State *L, p_socket ps)
+{
+    return opt_getint(L, ps, IPPROTO_TCP, TCP_KEEPCNT);
+}
+
+int opt_set_tcp_keepcnt(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_KEEPCNT);
+}
+
+#endif
+
+/*------------------------------------------------------*/
+#ifdef TCP_KEEPINTVL
+
+int opt_get_tcp_keepintvl(lua_State *L, p_socket ps)
+{
+    return opt_getint(L, ps, IPPROTO_TCP, TCP_KEEPINTVL);
+}
+
+int opt_set_tcp_keepintvl(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_KEEPINTVL);
+}
+
+#endif
+
+/*------------------------------------------------------*/
 int opt_set_keepalive(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, SOL_SOCKET, SO_KEEPALIVE);
@@ -100,6 +146,7 @@ int opt_get_keepalive(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_KEEPALIVE);
 }
 
+/*------------------------------------------------------*/
 int opt_set_dontroute(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, SOL_SOCKET, SO_DONTROUTE);
@@ -110,6 +157,7 @@ int opt_get_dontroute(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_DONTROUTE);
 }
 
+/*------------------------------------------------------*/
 int opt_set_broadcast(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, SOL_SOCKET, SO_BROADCAST);
@@ -120,6 +168,54 @@ int opt_get_broadcast(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, SOL_SOCKET, SO_BROADCAST);
 }
 
+/*------------------------------------------------------*/
+int opt_set_recv_buf_size(lua_State *L, p_socket ps)
+{
+	return opt_setint(L, ps, SOL_SOCKET, SO_RCVBUF);
+}
+
+int opt_get_recv_buf_size(lua_State *L, p_socket ps)
+{
+	return opt_getint(L, ps, SOL_SOCKET, SO_RCVBUF);
+}
+
+/*------------------------------------------------------*/
+int opt_get_send_buf_size(lua_State *L, p_socket ps)
+{
+	return opt_getint(L, ps, SOL_SOCKET, SO_SNDBUF);
+}
+
+int opt_set_send_buf_size(lua_State *L, p_socket ps)
+{
+	return opt_setint(L, ps, SOL_SOCKET, SO_SNDBUF);
+}
+
+// /*------------------------------------------------------*/
+
+#ifdef TCP_FASTOPEN
+int opt_set_tcp_fastopen(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_FASTOPEN);
+}
+#endif
+
+#ifdef TCP_FASTOPEN_CONNECT
+int opt_set_tcp_fastopen_connect(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_FASTOPEN_CONNECT);
+}
+#endif
+
+/*------------------------------------------------------*/
+
+#ifdef TCP_DEFER_ACCEPT
+int opt_set_tcp_defer_accept(lua_State *L, p_socket ps)
+{
+    return opt_setint(L, ps, IPPROTO_TCP, TCP_DEFER_ACCEPT);
+}
+#endif
+
+/*------------------------------------------------------*/
 int opt_set_ip6_unicast_hops(lua_State *L, p_socket ps)
 {
   return opt_setint(L, ps, IPPROTO_IPV6, IPV6_UNICAST_HOPS);
@@ -130,6 +226,7 @@ int opt_get_ip6_unicast_hops(lua_State *L, p_socket ps)
   return opt_getint(L, ps, IPPROTO_IPV6, IPV6_UNICAST_HOPS);
 }
 
+/*------------------------------------------------------*/
 int opt_set_ip6_multicast_hops(lua_State *L, p_socket ps)
 {
   return opt_setint(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_HOPS);
@@ -140,6 +237,7 @@ int opt_get_ip6_multicast_hops(lua_State *L, p_socket ps)
   return opt_getint(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_HOPS);
 }
 
+/*------------------------------------------------------*/
 int opt_set_ip_multicast_loop(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, IPPROTO_IP, IP_MULTICAST_LOOP);
@@ -150,6 +248,7 @@ int opt_get_ip_multicast_loop(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, IPPROTO_IP, IP_MULTICAST_LOOP);
 }
 
+/*------------------------------------------------------*/
 int opt_set_ip6_multicast_loop(lua_State *L, p_socket ps)
 {
     return opt_setboolean(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_LOOP);
@@ -160,6 +259,7 @@ int opt_get_ip6_multicast_loop(lua_State *L, p_socket ps)
     return opt_getboolean(L, ps, IPPROTO_IPV6, IPV6_MULTICAST_LOOP);
 }
 
+/*------------------------------------------------------*/
 int opt_set_linger(lua_State *L, p_socket ps)
 {
     struct linger li;                      /* obj, name, table */
@@ -192,11 +292,13 @@ int opt_get_linger(lua_State *L, p_socket ps)
     return 1;
 }
 
+/*------------------------------------------------------*/
 int opt_set_ip_multicast_ttl(lua_State *L, p_socket ps)
 {
     return opt_setint(L, ps, IPPROTO_IP, IP_MULTICAST_TTL);
 }
 
+/*------------------------------------------------------*/
 int opt_set_ip_multicast_if(lua_State *L, p_socket ps)
 {
     const char *address = luaL_checkstring(L, 3);    /* obj, name, ip */
@@ -221,6 +323,7 @@ int opt_get_ip_multicast_if(lua_State *L, p_socket ps)
     return 1;
 }
 
+/*------------------------------------------------------*/
 int opt_set_ip_add_membership(lua_State *L, p_socket ps)
 {
     return opt_setmembership(L, ps, IPPROTO_IP, IP_ADD_MEMBERSHIP);
@@ -231,6 +334,7 @@ int opt_set_ip_drop_membersip(lua_State *L, p_socket ps)
     return opt_setmembership(L, ps, IPPROTO_IP, IP_DROP_MEMBERSHIP);
 }
 
+/*------------------------------------------------------*/
 int opt_set_ip6_add_membership(lua_State *L, p_socket ps)
 {
     return opt_ip6_setmembership(L, ps, IPPROTO_IPV6, IPV6_ADD_MEMBERSHIP);
@@ -241,6 +345,7 @@ int opt_set_ip6_drop_membersip(lua_State *L, p_socket ps)
     return opt_ip6_setmembership(L, ps, IPPROTO_IPV6, IPV6_DROP_MEMBERSHIP);
 }
 
+/*------------------------------------------------------*/
 int opt_get_ip6_v6only(lua_State *L, p_socket ps)
 {
     return opt_getboolean(L, ps, IPPROTO_IPV6, IPV6_V6ONLY);
@@ -251,6 +356,20 @@ int opt_set_ip6_v6only(lua_State *L, p_socket ps)
     return opt_setboolean(L, ps, IPPROTO_IPV6, IPV6_V6ONLY);
 }
 
+/*------------------------------------------------------*/
+int opt_get_error(lua_State *L, p_socket ps)
+{
+    int val = 0;
+    socklen_t len = sizeof(val);
+    if (getsockopt(*ps, SOL_SOCKET, SO_ERROR, (char *) &val, &len) < 0) {
+        lua_pushnil(L);
+        lua_pushstring(L, "getsockopt failed");
+        return 2;
+    }
+    lua_pushstring(L, socket_strerror(val));
+    return 1;
+}
+
 /*=========================================================================*\
 * Auxiliar functions
 \*=========================================================================*/
@@ -337,19 +456,6 @@ static int opt_getboolean(lua_State *L, p_socket ps, int level, int name)
     return 1;
 }
 
-int opt_get_error(lua_State *L, p_socket ps)
-{
-    int val = 0;
-    socklen_t len = sizeof(val);
-    if (getsockopt(*ps, SOL_SOCKET, SO_ERROR, (char *) &val, &len) < 0) {
-        lua_pushnil(L);
-        lua_pushstring(L, "getsockopt failed");
-        return 2;
-    }
-    lua_pushstring(L, socket_strerror(val));
-    return 1;
-}
-
 static int opt_setboolean(lua_State *L, p_socket ps, int level, int name)
 {
     int val = auxiliar_checkboolean(L, 3);             /* obj, name, bool */