#ifndef _HG_MPATCH_H_

#define _HG_MPATCH_H_

#define MPATCH_ERR_NO_MEM -3

#define MPATCH_ERR_CANNOT_BE_DECODED -2

#define MPATCH_ERR_INVALID_PATCH -1

struct mpatch_frag {

	int start, end, len;

	const char *data;

};

struct mpatch_flist {

	struct mpatch_frag *base, *head, *tail;

};

int mpatch_decode(const char *bin, ssize_t len, struct mpatch_flist **res);

ssize_t mpatch_calcsize(ssize_t len, struct mpatch_flist *l);

void mpatch_lfree(struct mpatch_flist *a);

int mpatch_apply(char *buf, const char *orig, ssize_t len,

                 struct mpatch_flist *l);

struct mpatch_flist *

mpatch_fold(void *bins, struct mpatch_flist *(*get_next_item)(void *, ssize_t),

            ssize_t start, ssize_t end);

#endif