Unix/Linux Go Back    


NetBSD 6.1.5 - man page for iso_addr (netbsd section 3)

Linux & Unix Commands - Search Man Pages
Man Page or Keyword Search:   man
Select Man Page Set:       apropos Keyword Search (sections above)


ISO_ADDR(3)			   BSD Library Functions Manual 		      ISO_ADDR(3)

NAME
     iso_addr, iso_ntoa -- elementary network address conversion routines for Open System Inter-
     connection

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <sys/types.h>
     #include <netiso/iso.h>

     struct iso_addr *
     iso_addr(const char *cp);

     char *
     iso_ntoa(struct iso_addr *isoa);

DESCRIPTION
     The routine iso_addr() interprets character strings representing OSI addresses, returning
     binary information suitable for use in system calls.  The routine iso_ntoa() takes OSI
     addresses and returns ASCII strings representing NSAPs (network service access points) in a
     notation inverse to that accepted by iso_addr().

     Unfortunately, no universal standard exists for representing OSI network addresses.

     The format employed by iso_addr() is a sequence of hexadecimal ``digits'' (optionally sepa-
     rated by periods), of the form:

	   <hex digits>.<hex digits>.<hex digits>

     Each pair of hexadecimal digits represents a byte with the leading digit indicating the
     higher-ordered bits.  A period following an even number of bytes has no effect (but may be
     used to increase legibility).  A period following an odd number of bytes has the effect of
     causing the byte of address being translated to have its higher order bits filled with
     zeros.

RETURN VALUES
     iso_ntoa() always returns a null terminated string.  iso_addr() always returns a pointer to
     a struct iso_addr.  (See BUGS.)

SEE ALSO
     iso(4)

HISTORY
     The iso_addr() and iso_ntoa() functions appeared in 4.3BSD-Reno.

BUGS
     The returned values reside in a static memory area.

     The function iso_addr() should diagnose improperly formed input, and there should be an
     unambiguous way to recognize this.

BSD					   June 4, 1993 				      BSD
Unix & Linux Commands & Man Pages : ©2000 - 2018 Unix and Linux Forums


All times are GMT -4. The time now is 05:08 PM.