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#ifndef IP6_H
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#define IP6_H
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#include "byte.h"
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extern unsigned int scan_ip6(const char *src,char *ip);
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extern unsigned int fmt_ip6(char *dest,const char *ip);
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extern unsigned int scan_ip6_flat(const char *src,char *);
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extern unsigned int fmt_ip6_flat(char *dest,const char *);
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/*
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ip6 address syntax: (h = hex digit), no leading '0' required
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1. hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh
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2. any number of 0000 may be abbreviated as "::", but only once
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flat ip6 address syntax:
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hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh
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*/
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#define IP6_FMT 40
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extern const unsigned char V4mappedprefix[12]; /*={0,0,0,0,0,0,0,0,0,0,0xff,0xff}; */
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extern const unsigned char V6loopback[16]; /*={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}; */
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extern const unsigned char V6any[16]; /*={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; */
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#define ip6_isv4mapped(ip) (byte_equal(ip,12,V4mappedprefix))
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#endif
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