ip6.c File Reference

handling of IPv6 addresses More...

#include "fmt.h"
#include "byte.h"
#include "scan.h"
#include "ip.h"
#include "str.h"

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Functions
unsigned int	ip6_fmt (char *s, char ip[16])
	ip6_fmt convert IPv6 address to compactified IPv6 address string
unsigned int	ip6_fmt_flat (char *s, char ip[16])
	ip6_fmt_flat convert IPv6 address to IPv6 address string
unsigned int	ia6_fmt (char *s, char ip[16])
	ia6_fmt convert IPv6 address to inverse DNS nibble format 1.2.3.4.5.6.7.8.9.a.b.c.d.e.f.1.2.3.4.5.6.7.8.9.a.b.c.d.e.f.ip6.arpa
unsigned int	ip6_scan_flat (const char *s, char ip[16])
	ip6_scan_flat convert IPv6 address string to IPv6 address array
unsigned int	ip6_scan (const char *s, char ip[16])
	ip6_scan parse compactified IPv6 address string and convert to IPv6 address array
unsigned int	ip6_scanbracket (const char *s, char ip[16])
	ip6_scanbracket parse IPv6 string address enclosed in brackets
unsigned int	ip6_ifscan (char *s, char ip[16], stralloc *ifname)
	ip6_ifscan parse compactified IPv6 address string concatinated with the interface name: fe80::1eth0
unsigned int	ip6_cidr (char *s, char ip[16], unsigned long *plen)
	ip6_cidr parse compactified IPv6 address string concatinated with the prefix length: fe80::1/64
unsigned int	ip6_bytestring (stralloc *ipstring, char ip[16], int prefix)
	ip6_bytestring parse IPv6 address and represent as char string with length prefix

Detailed Description

handling of IPv6 addresses

Authors

djb, fefe, feh ucspi-tcp, ucspi-tcp6

Definition in file ip6.c.

Function Documentation

ia6_fmt()

unsigned int ia6_fmt	(	char *	s,
		char	ip[16]
	)

ia6_fmt convert IPv6 address to inverse DNS nibble format 1.2.3.4.5.6.7.8.9.a.b.c.d.e.f.1.2.3.4.5.6.7.8.9.a.b.c.d.e.f.ip6.arpa

Parameters

input

IPv6 char array output: pointer to IPv6 address string

Returns

int length of address

Definition at line 102 of file ip6.c.

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ip6_bytestring()

unsigned int ip6_bytestring	(	stralloc *	ipstring,
		char	ip[16],
		int	prefix
	)

ip6_bytestring parse IPv6 address and represent as char string with length prefix

Parameters

input

IPv6 char array, prefix length output: pointer to stralloc bit string;

Returns

n: number of bytes, if ok; -1: memory shortage

Definition at line 310 of file ip6.c.

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ip6_cidr()

unsigned int ip6_cidr	(	char *	s,
		char	ip[16],
		unsigned long *	plen
	)

ip6_cidr parse compactified IPv6 address string concatinated with the prefix length: fe80::1/64

Parameters

input

pointer to IPv6 address string output: IPv6 char array, long plen

Returns

int length of ip6_address/ip

Definition at line 290 of file ip6.c.

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ip6_fmt()

unsigned int ip6_fmt	(	char *	s,
		char	ip[16]
	)

ip6_fmt convert IPv6 address to compactified IPv6 address string

Parameters

input

IPv6 char array output: pointer to IPv6 address string

Returns

int length of address (ok > 0)

Definition at line 21 of file ip6.c.

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ip6_fmt_flat()

unsigned int ip6_fmt_flat	(	char *	s,
		char	ip[16]
	)

ip6_fmt_flat convert IPv6 address to IPv6 address string

Parameters

input

IPv6 char array output: pointer to IPv6 address string

Returns

int length of address (ok > 0)

Definition at line 84 of file ip6.c.

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ip6_ifscan()

unsigned int ip6_ifscan	(	char *	s,
		char	ip[16],
		stralloc *	ifname
	)

ip6_ifscan parse compactified IPv6 address string concatinated with the interface name: fe80::1eth0

Parameters

input

pointer to IPv6 address string output: IPv6 char array, stralloc interface_name

Returns

int length of ip6_address/ip

Definition at line 262 of file ip6.c.

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ip6_scan()

unsigned int ip6_scan	(	const char *	s,
		char	ip[16]
	)

ip6_scan parse compactified IPv6 address string and convert to IPv6 address array

Parameters

input

pointer to IPv6 address string output: IPv6 char array

Returns

int length of ip6_address/ip

Definition at line 151 of file ip6.c.

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ip6_scan_flat()

unsigned int ip6_scan_flat	(	const char *	s,
		char	ip[16]
	)

ip6_scan_flat convert IPv6 address string to IPv6 address array

Parameters

input

pointer to IPv6 address string output: IPv6 char array

Returns

int length of address (ok > 0)

Definition at line 129 of file ip6.c.

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ip6_scanbracket()

unsigned int ip6_scanbracket	(	const char *	s,
		char	ip[16]
	)

ip6_scanbracket parse IPv6 string address enclosed in brackets

Parameters

input

pointer to IPv6 address string output: IPv6 char array

Returns

int length of ip_address (ok > 0)

Definition at line 243 of file ip6.c.

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