#include <arpa/inet.h>

       const char *inet_ntop(int af, const void *src,
                             char *dst, socklen_t size);

       This  function  converts  the  network  address structure src in the af
       address family into a character string.  The resulting string is copied
       to the buffer pointed to by dst, which must be a non-null pointer.  The
       caller specifies the number of bytes available in this  buffer  in  the
       argument size.

       inet_ntop()  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().   The  following address families are currently

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

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

       On success, inet_ntop() returns a non-null pointer  to  dst.   NULL  is
       returned if there was an error, with errno set to indicate the error.

              af was not a valid address family.

       ENOSPC The  converted  address  string  would  exceed the size given by

       For  an  explanation  of  the  terms  used   in   this   section,   see

       |Interface   | Attribute     | Value          |
       |inet_ntop() | Thread safety | MT-Safe locale |

       POSIX.1-2001,  POSIX.1-2008.   Note  that  RFC 2553 defines a prototype
       where the last argument size is of type size_t.   Many  systems  follow
       RFC 2553.   Glibc  2.0  and  2.1  have  size_t,  but 2.2 and later have
       This page is part of release 4.04 of the Linux  man-pages  project.   A
       description  of  the project, information about reporting bugs, and the
       latest    version    of    this    page,    can     be     found     at

Linux                             2015-08-08                      INET_NTOP(3)
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