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Added by-name interface handling too.

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This commit is contained in:
Markus Stenberg 2013-01-31 22:24:08 +02:00
parent 8b56df87c5
commit c5ab2ac3eb
1 changed files with 21 additions and 6 deletions
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27
src/options.c
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@ -3,6 +3,9 @@
* LuaSocket toolkit
\*=========================================================================*/
#include <string.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <net/if.h>
#include "lauxlib.h"
@ -295,15 +298,27 @@ static int opt_ip6_setmembership(lua_State *L, p_socket ps, int level, int name)
luaL_argerror(L, 3, "invalid 'multiaddr' ip address");
lua_pushstring(L, "interface");
lua_gettable(L, 3);
/* By default we listen to all interfaces. However, interface= can
override it. */
/* By default we listen to interface on default route
* (sigh). However, interface= can override it. We support either
* number, or name for it. */
if (!lua_isnil(L, -1))
{
if (!lua_isnumber(L, -1))
luaL_argerror(L, 3, "string 'interface' field expected");
/* XXX - support non-numeric interface specification? */
if (lua_isnumber(L, -1))
{
val.ipv6mr_interface = lua_tonumber(L, -1);
}
else if (lua_isstring(L, -1))
{
if (!(val.ipv6mr_interface = if_nametoindex(lua_tostring(L, -1))))
{
lua_pushnil(L);
lua_pushstring(L, "nonexistent interface");
return 2;
}
}
else
luaL_argerror(L, -1, "number/string 'interface' field expected");
}
val.ipv6mr_interface = lua_tonumber(L, -1);
return opt_set(L, ps, level, name, (char *) &val, sizeof(val));
}