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tag: Fix an off-by-one caused by a mutatation during a `foreach`. 

Fix #3167
This commit is contained in:
Emmanuel Lepage Vallee 2020-09-13 23:52:46 -07:00
parent 97c3849ae7
commit 68bc9eba15
1 changed files with 8 additions and 4 deletions
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12
objects/tag.c
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@ -473,8 +473,10 @@ luaA_tag_clients(lua_State *L)
if(lua_gettop(L) == 2)
{
luaA_checktable(L, 2);
foreach(c, tag->clients)
for(int j = 0; j < clients->len; j++)
{
client_t *c = clients->tab[j];
/* Only untag if we aren't going to add this tag again */
bool found = false;
lua_pushnil(L);
@ -483,7 +485,7 @@ luaA_tag_clients(lua_State *L)
client_t *tc = luaA_checkudata(L, -1, &client_class);
/* Pop the value from lua_next */
lua_pop(L, 1);
if (tc != *c)
if (tc != c)
continue;
/* Pop the key from lua_next */
@ -491,8 +493,10 @@ luaA_tag_clients(lua_State *L)
found = true;
break;
}
if(!found)
untag_client(*c, tag);
if(!found) {
untag_client(c, tag);
j--;
}
}
lua_pushnil(L);
while(lua_next(L, 2))