int zuluCryptRemoveKey( const char * device ,const char * pass,size_t pass_size )
{
string_t st ;
int fd ;
int r ;
if( StringPrefixEqual( device,"/dev/" ) ){
return _remove_key( device,pass,pass_size ) ;
}else{
/*
* zuluCryptAttachLoopDeviceToFile() is defined in ./create_loop.c
*/
if( zuluCryptAttachLoopDeviceToFile( device,O_RDWR,&fd,&st ) ){
r = _remove_key( StringContent( st ),pass,pass_size ) ;
StringDelete( &st ) ;
close( fd ) ;
return r ;
}else{
return 2 ;
}
}
}
void _rm_from_bplus(bp_tree * tree, int k)
{
bp_node * p = NULL;
int i = -1;
if (!_find(tree->root, k, p, i)) {
return;
}
if (p == tree->root && p->n == 1) {
delete tree->root;
tree->root = tree->sqt = NULL;
return;
}
int max = p->max_key();
_remove_key(p, i);
if (p == tree->root) {
return;
}
if (p->max_key() != max) {
_update_key(p->parent, max, p->max_key());
}
bp_node * t = NULL;
while (p->n == 1) {
if (p == tree->root) {
tree->root = p->ptr[0];
if (tree->root) {
tree->root->parent = NULL;
}
else {
tree->sqt = NULL;
}
delete p;
break;
}
t = p;
p = p->parent;
_process_weak_node(tree, t);
}
}