#ifndef KRB5_CLEANUP
#define KRB5_CLEANUP

struct cleanup {
    void                * arg;
    void                (*func)(void *);
};

#define CLEANUP_INIT(x)                                                 \
    struct cleanup cleanup_data[x];                                     \
    int cleanup_count = 0;

#define CLEANUP_PUSH(x, y)                                              \
    cleanup_data[cleanup_count].arg = x;                                \
    cleanup_data[cleanup_count].func = y;                               \
    cleanup_count++;

#define CLEANUP_POP(x)                                                  \
    if ((--cleanup_count) && x && (cleanup_data[cleanup_count].func))   \
        cleanup_data[cleanup_count].func(cleanup_data[cleanup_count].arg);

#define CLEANUP_DONE()                                                  \
    while(cleanup_count--)                                              \
        if (cleanup_data[cleanup_count].func)                           \
            cleanup_data[cleanup_count].func(cleanup_data[cleanup_count].arg);


#endif