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IPX(3)			 BSD Library Functions Manual			IPX(3)

NAME
     ipx_addr, ipx_ntoa	-- IPX address conversion routines

LIBRARY
     IPX Address Conversion Support Library (libipx, -lipx)

SYNOPSIS
     #include <sys/types.h>
     #include <netipx/ipx.h>

     struct ipx_addr
     ipx_addr(const char *cp);

     char *
     ipx_ntoa(struct ipx_addr ipx);

DESCRIPTION
     The routine ipx_addr() interprets character strings representing IPX ad-
     dresses, returning	binary information suitable for	use in system calls.
     The routine ipx_ntoa() takes IPX addresses	and returns ASCII strings rep-
     resenting the address in a	notation in common use:

	   <network number>.<host number>.<port	number>

     Trailing zero fields are suppressed, and each number is printed in	hexa-
     decimal, in a format suitable for input to	ipx_addr().  Any fields	lack-
     ing super-decimal digits will have	a trailing `H' appended.

     An	effort has been	made to	insure that ipx_addr() be compatible with most
     formats in	common use.  It	will first separate an address into 1 to 3
     fields using a single delimiter chosen from period	`.', colon `:' or
     pound-sign	`#'.  Each field is then examined for byte separators (colon
     or	period).  If there are byte separators,	each subfield separated	is
     taken to be a small hexadecimal number, and the entirety is taken as a
     network-byte-ordered quantity to be zero extended in the high-network-or-
     der bytes.	 Next, the field is inspected for hyphens, in which case the
     field is assumed to be a number in	decimal	notation with hyphens separat-
     ing the millennia.	 Next, the field is assumed to be a number: It is in-
     terpreted as hexadecimal if there is a leading `0x' (as in	C), a trailing
     `H' (as in	Mesa), or there	are any	super-decimal digits present.  It is
     interpreted as octal if there is a	leading	`0' and	there are no super-oc-
     tal digits.  Otherwise, it	is converted as	a decimal number.

RETURN VALUES
     None.  (See BUGS.)

SEE ALSO
     hosts(5), networks(5)

HISTORY
     The precursor ns_addr() and ns_toa() functions appeared in	4.3BSD.

BUGS
     The string	returned by ipx_ntoa() resides in a static memory area.	 The
     function ipx_addr() should	diagnose improperly formed input, and there
     should be an unambiguous way to recognize this.

BSD				 June 4, 1993				   BSD

NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | HISTORY | BUGS

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