unsigned char *ziplistNext(unsigned char *p);
unsigned char *ziplistPrev(unsigned char *p);
unsigned int ziplistGet(unsigned char *p, char **sstr, unsigned int *slen, long long *sval);
-unsigned char *ziplistDelete(unsigned char *zl, unsigned char **p);
unsigned char *ziplistInsert(unsigned char *zl, unsigned char *p, char *s, unsigned int slen);
+unsigned char *ziplistDelete(unsigned char *zl, unsigned char **p, int direction);
unsigned char *ziplistDeleteRange(unsigned char *zl, unsigned int index, unsigned int num);
unsigned int ziplistCompare(unsigned char *p, char *entry, unsigned int elen);
unsigned int ziplistLen(unsigned char *zl);