how to get this permission right

i have made a tool which needs to be attached to avatar and only then further action can take place
what i was doing was that i was rezzing it from another inventory and then in state_entry it asks for attach permission. i wanted that if user says no then it shud again ask for the same till it's granted that permission.
what is happening in my system is that the script runs wild and asks for permission repeatedly and gives my say 100 boxes asking for that procedure.
how shud i achieve the thing i need.

Step 1: Post your code.

state_entry()
{
llRequestPermissions(llGetOwner(),PERMISSION_ATTACH | PERMISSION_TRIGGER_ANIMATION);
llOwnerSay("Waiting for user permission ";
flag=0;

check_permission=llGetPermissions();
do
{
if(check_permission & PERMISSION_ATTACH)
{
flag=1;
llAttachToAvatar(attach_position);
//Time to attach tool
llSleep(1.0);
llOwnerSay("TOOL ATTACHED";
llShout(TOOL_CHANNEL,"attached";
}
else
{
//llShout(AUTO_BUG_CHANNEL,"Permission to attach object is not set. Check tool's script";
llOwnerSay("Permission to attach object is not set. Check tool's script.";
}
}while(flag==0);
}

now i have changed the thing and asking the permission again in run_time_permissions
i think i got it right this time.

You are (were?) getting constant permission requests because you don't wait for the user to respond. Basically, take everything inside the do/while loop, and move it to a run_time_permissions event handler, and instead of using llGetPermissions, just use the permissions parameter passed to the handler.

Quite. And if you want it to ask for permissions again when it is rezzed (if it doesn't have them already), put another request in an 'on_rez' event handler instead of looping endlessly.