NAME

       inet_pton - Create a network address structure

SYNOPSIS

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

       int inet_pton(int af, const char *src, void *dst);

DESCRIPTION

       This  function  converts  the  character  string  src  into a network address structure in the af address
       family, then copies the network address structure to dst.

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

       AF_INET       src points to a character string containing an IPv4  network  address  in  the  dotted-quad
                     format, "ddd.ddd.ddd.ddd".  The address is converted to a struct in_addr and copied to dst,
                     which must be sizeof(struct in_addr) bytes long.

       AF_INET6      src  points  to  a  character string containing an IPv6 network address in any allowed IPv6
                     address format.  The address is converted to a struct in6_addr and  copied  to  dst,  which
                     must be sizeof(struct in6_addr) bytes long.

       Certain  legacy  hex and octal formats of AF_INET addresses are not supported by inet_pton, which rejects
       them.

RETURN VALUES

       inet_pton returns a negative value and sets errno to EAFNOSUPPORT if af does not contain a valid  address
       family.  0 is returned if src does not contain a character string representing a valid network address in
       the  specified  address  family.   A  positive  value  is returned if the network address was succesfully
       converted.

SEE ALSO

       inet_ntop(3)

BUGS

       AF_INET6 does not recognize IPv4 addresses.  An explicit IPv6-mapped IPv4 address must be supplied in src
       instead.

Linux Man Page                                    May 18, 2000                                      inet_pton(3)