fdnsip6list(1) [debian man page]

fdnsip6list(1)						      General Commands Manual						    fdnsip6list(1)

NAME

       fdnsip6list - resolve a hostname to a list of IPv6 addresses

SYNOPSIS

       fdnsip6list <hostname>

DESCRIPTION

       fdnsip6list will attempt to look up a list of IPv6 addresses for hostname.  If any are found, they are printed to standard output seperated
       by newlines and the program exits with return code 0.  If not, nothing is printed and the program exits with return code 1.

AUTHOR

       Ian Gulliver <ian@penguinhosting.net>

SEE ALSO

       libfiredns(3)

								    2004-02-12							    fdnsip6list(1)

NE_ADDR_RESOLVE(3)						neon API reference						NE_ADDR_RESOLVE(3)

NAME

       ne_addr_resolve, ne_addr_result, ne_addr_first, ne_addr_next, ne_addr_error, ne_addr_destroy - functions to resolve hostnames to addresses

SYNOPSIS

       #include <ne_socket.h>

       ne_sock_addr *ne_addr_resolve(const char *hostname, int flags);

       int ne_addr_result(const ne_sock_addr *addr);

       const ne_inet_addr *ne_addr_first(ne_sock_addr *addr);

       const ne_inet_addr *ne_addr_next(ne_sock_addr *addr);

       char *ne_addr_error(const ne_sock_addr *addr, char *buffer, size_t bufsiz);

       void ne_addr_destroy(ne_sock_addr *addr);

DESCRIPTION

       The ne_addr_resolve function resolves the given hostname, returning an ne_sock_addr object representing the address (or addresses)
       associated with the hostname. The flags parameter is currently unused, and must be passed as 0.

       The hostname passed to ne_addr_resolve can be a DNS hostname (e.g.  "www.example.com") or an IPv4 dotted quad (e.g.  "192.0.34.72"); or, on
       systems which support IPv6, an IPv6 hex address, which may be enclosed in brackets, e.g.  "[::1]".

       To determine whether the hostname was successfully resolved, the ne_addr_result function is used, which returns non-zero if an error
       occurred. If an error did occur, the ne_addr_error function can be used, which will copy the error string into a given buffer (of size
       bufsiz).

       The functions ne_addr_first and ne_addr_next are used to retrieve the Internet addresses associated with an address object which has been
       successfully resolved.  ne_addr_first returns the first address; ne_addr_next returns the next address after the most recent call to
       ne_addr_next or ne_addr_first, or NULL if there are no more addresses. The ne_inet_addr pointer returned by these functions can be passed
       to ne_sock_connect to connect a socket.

       After the address object has been used, it should be destroyed using ne_addr_destroy.

RETURN VALUE

       ne_addr_resolve returns a pointer to an address object, and never NULL.	ne_addr_error returns the buffer parameter .

EXAMPLES

       The code below prints out the set of addresses associated with the hostname www.google.com.

	   ne_sock_addr *addr;
	   char buf[256];

	   addr = ne_addr_resolve("www.google.com", 0);
	   if (ne_addr_result(addr)) {
	       printf("Could not resolve www.google.com: %s
",
		      ne_addr_error(addr, buf, sizeof buf));
	   } else {
	       const ne_inet_addr *ia;
	       printf("www.google.com:");
	       for (ia = ne_addr_first(addr); ia != NULL; ia = ne_addr_next(addr)) {
		   printf(" %s", ne_iaddr_print(ia, buf, sizeof buf));
	       }
	       putchar('
');
	   }
	   ne_addr_destroy(addr);

SEE ALSO

       ne_iaddr_print

AUTHOR

       Joe Orton <neon@lists.manyfish.co.uk>
	   Author.

COPYRIGHT

neon 0.29.6							    3 May 2011							NE_ADDR_RESOLVE(3)