Manual Pages for UNIX Operating System command usage for man inet_cidr_pton

Resolver Library Functions                inet_cidr_ntop(3RESOLV)



NAME
     inet_cidr_ntop, inet_cidr_pton -  network  translation  rou-
     tines

SYNOPSIS
     cc [ flag... ] file... -lresolv  -lsocket   -lnsl  [ library...]
     #include 
     #include 
     #include 
     #include 

     char *inet_cidr_ntop(int af, const void *src, int bits, char *dst,
          size_t size);


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


DESCRIPTION
     These routines are used for converting addresses to and from
     network  and  presentation forms with CIDR (Classless Inter-
     Domain Routing) representation, embedded net mask.


     The inet_cidr_ntop() function converts an address from  net-
     work to presentation format.


     The af parameter describes the type of address that is being
     passed in src. Currently only AF_INET is supported.


     The src parameter is an address in network byte  order,  its
     length is determined from af.


     The bits parameter specifies the number of bits in the  net-
     mask  unless  it is -1 in which case the CIDR representation
     is omitted.


     The dst parameter is a caller supplied buffer  of  at  least
     size bytes.


     The inet_cidr_ntop() function  returns  dst  on  success  or
     NULL. Check errno for reason.


     The inet_cidr_pton()  function  converts  and  address  from
     presentation  format,  with optional CIDR representation, to
     network format. The resulting  address  is  zero  filled  if



SunOS 5.11          Last change: 11 Nov 2009                    1






Resolver Library Functions                inet_cidr_ntop(3RESOLV)



     there were insufficient bits in src.


     The af parameter describes the type of address that is being
     passed in via src and determines the size of dst.


     The src parameter is an address in presentation format.


     The  bits parameter returns the number of bits in  the  net-
     mask or -1 if a CIDR representation was not supplied.


     The inet_cidr_pton() function returns 0 on success or -1  on
     error.  Check  errno for reason. ENOENT indicates an invalid
     netmask.

ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Interface Stability         | Committed                   |
    |_____________________________|_____________________________|
    | MT-Level                    | MT-Safe                     |
    |_____________________________|_____________________________|


SEE ALSO
     Intro(2), attributes(5)




















SunOS 5.11          Last change: 11 Nov 2009                    2