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/*
* (C) 2005-2012 by Pablo Neira Ayuso <pablo@netfilter.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "stack.h"
struct stack_item *
stack_item_alloc(int type, size_t data_len)
{
struct stack_item *e;
e = calloc(1, sizeof(struct stack_item) + data_len);
if (e == NULL)
return NULL;
e->data_len = data_len;
e->type = type;
return e;
}
void stack_item_free(struct stack_item *e)
{
free(e);
}
void stack_item_push(struct stack *s, struct stack_item *e)
{
list_add(&e->head, &s->list);
}
struct stack_item *stack_item_pop(struct stack *s, int type)
{
struct stack_item *cur, *tmp, *found = NULL;
list_for_each_entry_safe(cur, tmp, &s->list, head) {
if (cur->type != type && type != -1)
continue;
list_del(&cur->head);
found = cur;
break;
}
return found;
}
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