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       inet_ntop - Parse network address structures


       #include <sys/types.h>
       #include <sys/socket.h>
       #include <arpa/inet.h>

       const char *p=inet_ntop(int af, const void *src,
                               char *dst, size_t cnt);


       This  function  converts  the  network  address structure src in the af
       address family into a character string, which is copied to a  character
       buffer dst, which is cnt bytes long.

       inet_ntop(3)  extends  the  inet_ntoa(3)  function  to support multiple
       address families, inet_ntoa(3) is now considered to  be  deprecated  in
       favor  of  inet_ntop(3).   The following address families are currently

       AF_INET       src points  to  a  struct  in_addr  (network  byte  order
                     format)  which is converted to an IPv4 network address in
                     the dotted-quad format,  "ddd.ddd.ddd.ddd".   The  buffer
                     buf must be at least INET_ADDRSTRLEN bytes long.

       AF_INET6      src  points  to  a  struct  in6_addr  (network byte order
                     format) which is converted to a  representation  of  this
                     address  in  the  most  appropriate  IPv6 network address
                     format for this address.  The buffer buf must be at least
                     INET6_ADDRSTRLEN bytes long.


       inet_ntop returns a non-null pointer to buf.  NULL is returned if there
       was an error, with errno set to EAFNOSUPPORT if af was  not  set  to  a
       valid  address  family,  or  to  ENOSPC if the converted address string
       would exceed the size of buf, given by the cnt argument.




       AF_INET6 converts IPv6-mapped IPv4 addresses into an IPv6 format.