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ip6_addr.h File Reference
Data Structures | Typedefs | Functions

ip6_addr.h File Reference

IPv6 addresses. More...

Go to the source code of this file.

Data Structures

struct  ip6_addr
 This is the aligned version of ip6_addr_t, used as local variable, on the stack, etc. More...

Typedefs

typedef struct ip6_addr ip6_addr_t
 IPv6 address.

Functions

int ip6addr_aton (const char *cp, ip6_addr_t *addr)
 Check whether "cp" is a valid ascii representation of an IPv6 address and convert to a binary address.
char * ip6addr_ntoa (const ip6_addr_t *addr)
 returns ptr to static buffer; not reentrant!
char * ip6addr_ntoa_r (const ip6_addr_t *addr, char *buf, int buflen)
 Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used.

Detailed Description

IPv6 addresses.

Definition in file ip6_addr.h.

Typedef Documentation

typedef struct ip6_addr ip6_addr_t

IPv6 address.

Definition at line 63 of file ip6_addr.h.

Function Documentation

int ip6addr_aton ( const char *  cp,
ip6_addr_t *  addr 
)

Check whether "cp" is a valid ascii representation of an IPv6 address and convert to a binary address.

Returns 1 if the address is valid, 0 if not.

Parameters:
cpIPv6 address in ascii representation (e.g. "FF01::1")
addrpointer to which to save the ip address in network order
Returns:
1 if cp could be converted to addr, 0 on failure

Definition at line 73 of file lwip_ip6_addr.c.

char* ip6addr_ntoa ( const ip6_addr_t *  addr )

returns ptr to static buffer; not reentrant!

returns ptr to static buffer; not reentrant!

returns ptr to static buffer; not reentrant!

Parameters:
addrip6 address in network order to convert
Returns:
pointer to a global static (!) buffer that holds the ASCII representation of addr

Definition at line 175 of file lwip_ip6_addr.c.

char* ip6addr_ntoa_r ( const ip6_addr_t *  addr,
char *  buf,
int  buflen 
)

Same as ipaddr_ntoa, but reentrant since a user-supplied buffer is used.

Parameters:
addrip6 address in network order to convert
buftarget buffer where the string is stored
buflenlength of buf
Returns:
either pointer to buf which now holds the ASCII representation of addr or NULL if buf was too small

Definition at line 191 of file lwip_ip6_addr.c.

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