diff options
Diffstat (limited to 'ThirdParty/tolua_runtime/luasocket/options.c')
-rw-r--r-- | ThirdParty/tolua_runtime/luasocket/options.c | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/ThirdParty/tolua_runtime/luasocket/options.c b/ThirdParty/tolua_runtime/luasocket/options.c new file mode 100644 index 0000000..20f4c28 --- /dev/null +++ b/ThirdParty/tolua_runtime/luasocket/options.c @@ -0,0 +1,374 @@ +/*=========================================================================*\ +* Common option interface +* LuaSocket toolkit +\*=========================================================================*/ +#include <string.h> + +#include "lauxlib.h" + +#include "auxiliar.h" +#include "options.h" +#include "inet.h" + + +/*=========================================================================*\ +* Internal functions prototypes +\*=========================================================================*/ +static int opt_setmembership(lua_State *L, p_socket ps, int level, int name); +static int opt_ip6_setmembership(lua_State *L, p_socket ps, int level, int name); +static int opt_setboolean(lua_State *L, p_socket ps, int level, int name); +static int opt_getboolean(lua_State *L, p_socket ps, int level, int name); +static int opt_setint(lua_State *L, p_socket ps, int level, int name); +static int opt_getint(lua_State *L, p_socket ps, int level, int name); +static int opt_set(lua_State *L, p_socket ps, int level, int name, + void *val, int len); +static int opt_get(lua_State *L, p_socket ps, int level, int name, + void *val, int* len); + +/*=========================================================================*\ +* Exported functions +\*=========================================================================*/ +/*-------------------------------------------------------------------------*\ +* Calls appropriate option handler +\*-------------------------------------------------------------------------*/ +int opt_meth_setoption(lua_State *L, p_opt opt, p_socket ps) +{ + const char *name = luaL_checkstring(L, 2); /* obj, name, ... */ + while (opt->name && strcmp(name, opt->name)) + opt++; + if (!opt->func) { + char msg[45]; + sprintf(msg, "unsupported option `%.35s'", name); + luaL_argerror(L, 2, msg); + } + return opt->func(L, ps); +} + +int opt_meth_getoption(lua_State *L, p_opt opt, p_socket ps) +{ + const char *name = luaL_checkstring(L, 2); /* obj, name, ... */ + while (opt->name && strcmp(name, opt->name)) + opt++; + if (!opt->func) { + char msg[45]; + 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) +{ + return opt_setboolean(L, ps, SOL_SOCKET, SO_REUSEADDR); +} + +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) +{ + return opt_setboolean(L, ps, SOL_SOCKET, SO_REUSEPORT); +} + +int opt_get_reuseport(lua_State *L, p_socket ps) +{ + return opt_getboolean(L, ps, SOL_SOCKET, SO_REUSEPORT); +} + +/* disables the Naggle algorithm */ +int opt_set_tcp_nodelay(lua_State *L, p_socket ps) +{ + return opt_setboolean(L, ps, IPPROTO_TCP, TCP_NODELAY); +} + +int opt_get_tcp_nodelay(lua_State *L, p_socket ps) +{ + return opt_getboolean(L, ps, IPPROTO_TCP, TCP_NODELAY); +} + +int opt_set_keepalive(lua_State *L, p_socket ps) +{ + return opt_setboolean(L, ps, SOL_SOCKET, SO_KEEPALIVE); +} + +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); +} + +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); +} + +int opt_get_broadcast(lua_State *L, p_socket ps) +{ + return opt_getboolean(L, ps, SOL_SOCKET, SO_BROADCAST); +} + +int opt_set_ip6_unicast_hops(lua_State *L, p_socket ps) +{ + return opt_setint(L, ps, IPPROTO_IPV6, IPV6_UNICAST_HOPS); +} + +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); +} + +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); +} + +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); +} + +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 */ + if (!lua_istable(L, 3)) auxiliar_typeerror(L,3,lua_typename(L, LUA_TTABLE)); + lua_pushstring(L, "on"); + lua_gettable(L, 3); + if (!lua_isboolean(L, -1)) + luaL_argerror(L, 3, "boolean 'on' field expected"); + li.l_onoff = (u_short) lua_toboolean(L, -1); + lua_pushstring(L, "timeout"); + lua_gettable(L, 3); + if (!lua_isnumber(L, -1)) + luaL_argerror(L, 3, "number 'timeout' field expected"); + li.l_linger = (u_short) lua_tonumber(L, -1); + return opt_set(L, ps, SOL_SOCKET, SO_LINGER, (char *) &li, sizeof(li)); +} + +int opt_get_linger(lua_State *L, p_socket ps) +{ + struct linger li; /* obj, name */ + int len = sizeof(li); + int err = opt_get(L, ps, SOL_SOCKET, SO_LINGER, (char *) &li, &len); + if (err) + return err; + lua_newtable(L); + lua_pushboolean(L, li.l_onoff); + lua_setfield(L, -2, "on"); + lua_pushinteger(L, li.l_linger); + lua_setfield(L, -2, "timeout"); + 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 */ + struct in_addr val; + val.s_addr = htonl(INADDR_ANY); + if (strcmp(address, "*") && !inet_aton(address, &val)) + luaL_argerror(L, 3, "ip expected"); + return opt_set(L, ps, IPPROTO_IP, IP_MULTICAST_IF, + (char *) &val, sizeof(val)); +} + +int opt_get_ip_multicast_if(lua_State *L, p_socket ps) +{ + struct in_addr val; + socklen_t len = sizeof(val); + if (getsockopt(*ps, IPPROTO_IP, IP_MULTICAST_IF, (char *) &val, &len) < 0) { + lua_pushnil(L); + lua_pushstring(L, "getsockopt failed"); + return 2; + } + lua_pushstring(L, inet_ntoa(val)); + return 1; +} + +int opt_set_ip_add_membership(lua_State *L, p_socket ps) +{ + return opt_setmembership(L, ps, IPPROTO_IP, IP_ADD_MEMBERSHIP); +} + +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); +} + +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); +} + +int opt_set_ip6_v6only(lua_State *L, p_socket ps) +{ + return opt_setboolean(L, ps, IPPROTO_IPV6, IPV6_V6ONLY); +} + +/*=========================================================================*\ +* Auxiliar functions +\*=========================================================================*/ +static int opt_setmembership(lua_State *L, p_socket ps, int level, int name) +{ + struct ip_mreq val; /* obj, name, table */ + if (!lua_istable(L, 3)) auxiliar_typeerror(L,3,lua_typename(L, LUA_TTABLE)); + lua_pushstring(L, "multiaddr"); + lua_gettable(L, 3); + if (!lua_isstring(L, -1)) + luaL_argerror(L, 3, "string 'multiaddr' field expected"); + if (!inet_aton(lua_tostring(L, -1), &val.imr_multiaddr)) + luaL_argerror(L, 3, "invalid 'multiaddr' ip address"); + lua_pushstring(L, "interface"); + lua_gettable(L, 3); + if (!lua_isstring(L, -1)) + luaL_argerror(L, 3, "string 'interface' field expected"); + val.imr_interface.s_addr = htonl(INADDR_ANY); + if (strcmp(lua_tostring(L, -1), "*") && + !inet_aton(lua_tostring(L, -1), &val.imr_interface)) + luaL_argerror(L, 3, "invalid 'interface' ip address"); + return opt_set(L, ps, level, name, (char *) &val, sizeof(val)); +} + +static int opt_ip6_setmembership(lua_State *L, p_socket ps, int level, int name) +{ + struct ipv6_mreq val; /* obj, opt-name, table */ + memset(&val, 0, sizeof(val)); + if (!lua_istable(L, 3)) auxiliar_typeerror(L,3,lua_typename(L, LUA_TTABLE)); + lua_pushstring(L, "multiaddr"); + lua_gettable(L, 3); + if (!lua_isstring(L, -1)) + luaL_argerror(L, 3, "string 'multiaddr' field expected"); + if (!inet_pton(AF_INET6, lua_tostring(L, -1), &val.ipv6mr_multiaddr)) + luaL_argerror(L, 3, "invalid 'multiaddr' ip address"); + lua_pushstring(L, "interface"); + lua_gettable(L, 3); + /* By default we listen to interface on default route + * (sigh). However, interface= can override it. We should + * support either number, or name for it. Waiting for + * windows port of if_nametoindex */ + if (!lua_isnil(L, -1)) { + if (lua_isnumber(L, -1)) { + val.ipv6mr_interface = (unsigned int) lua_tonumber(L, -1); + } else + luaL_argerror(L, -1, "number 'interface' field expected"); + } + return opt_set(L, ps, level, name, (char *) &val, sizeof(val)); +} + +static +int opt_get(lua_State *L, p_socket ps, int level, int name, void *val, int* len) +{ + socklen_t socklen = *len; + if (getsockopt(*ps, level, name, (char *) val, &socklen) < 0) { + lua_pushnil(L); + lua_pushstring(L, "getsockopt failed"); + return 2; + } + *len = socklen; + return 0; +} + +static +int opt_set(lua_State *L, p_socket ps, int level, int name, void *val, int len) +{ + if (setsockopt(*ps, level, name, (char *) val, len) < 0) { + lua_pushnil(L); + lua_pushstring(L, "setsockopt failed"); + return 2; + } + lua_pushnumber(L, 1); + return 1; +} + +static int opt_getboolean(lua_State *L, p_socket ps, int level, int name) +{ + int val = 0; + int len = sizeof(val); + int err = opt_get(L, ps, level, name, (char *) &val, &len); + if (err) + return err; + lua_pushboolean(L, val); + 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 */ + return opt_set(L, ps, level, name, (char *) &val, sizeof(val)); +} + +static int opt_getint(lua_State *L, p_socket ps, int level, int name) +{ + int val = 0; + int len = sizeof(val); + int err = opt_get(L, ps, level, name, (char *) &val, &len); + if (err) + return err; + lua_pushnumber(L, val); + return 1; +} + +static int opt_setint(lua_State *L, p_socket ps, int level, int name) +{ + int val = (int) lua_tonumber(L, 3); /* obj, name, int */ + return opt_set(L, ps, level, name, (char *) &val, sizeof(val)); +} |