diff options
Diffstat (limited to 'ip6.h')
-rw-r--r-- | ip6.h | 28 |
1 files changed, 28 insertions, 0 deletions
@@ -0,0 +1,28 @@ +#ifndef IP6_H +#define IP6_H + +extern unsigned int ip6_scan(const char *,char *); +extern unsigned int ip6_fmt(char *,const char *); + +extern unsigned int ip6_scan_flat(const char *,char *); +extern unsigned int ip6_fmt_flat(char *,const char *); + +/* + ip6 address syntax: (h = hex digit), no leading '0' required + 1. hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh:hhhh + 2. any number of 0000 may be abbreviated as "::", but only once + flat ip6 address syntax: + hhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh + */ + +#define IP6_FMT 40 + +const static unsigned char V4mappedprefix[12]={0,0,0,0,0,0,0,0,0,0,0xff,0xff}; +const static unsigned char V6loopback[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1}; +const static unsigned char V6any[16]={0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0}; + +#define ip6_isv4mapped(ip) (byte_equal(ip,12,V4mappedprefix)) + +const static char ip4loopback[4] = {127,0,0,1}; + +#endif |