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Old 06-19-2006, 12:01 AM   #1
hegdeshashi
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IPv6 address ?????????


Hi,


To check IPv4 address, we are having inet_addr().
For IPv6 address ?

I want to check IPv6 address ,after entring manually....

any help?????????
 
Old 06-19-2006, 01:04 AM   #2
elluva
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This comes from the libc manual,
Code:
#include <arpa/inet.h>

  -- Function: int inet_pton (int AF, const char *CP, void *BUF)
      This function converts an Internet address (either IPv4 or IPv6)
      from presentation (textual) to network (binary) format.  AF should
      be either `AF_INET' or `AF_INET6', as appropriate for the type of
      address being converted.  CP is a pointer to the input string, and
      BUF is a pointer to a buffer for the result.  It is the caller's
      responsibility to make sure the buffer is large enough.
 
Old 06-19-2006, 01:38 AM   #3
hegdeshashi
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Hi,


I am entring ipv6 address manually...

I want to check like inet_addr(ipaddr)...


how can I use this one?
 
Old 06-19-2006, 03:13 AM   #4
elluva
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Just like the docs say, I included a minimal example. When all goes well, 0 is returned, else -1 is returned.

Code:
struct in6_addr output;
char* input;

// READ THE INPUTSTRING INTO INPUT

if(inet_pton(AF_INET6, input, &output)) //Parse input to a binary IPv6 address in output.
{
  perror(0);
  exit(1);
}; 
// use your binary IPv6 address called output
 
  


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