MirBSD manpage: ipx(3), ipx_addr(3), ipx_ntoa(3)

IPX(3)                     BSD Programmer's Manual                      IPX(3)


     ipx_addr, ipx_ntoa - IPX address conversion routines


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

     struct ipx_addr
     ipx_addr(const char *cp);

     char *
     ipx_ntoa(struct ipx_addr ipx);


     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
     representing 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 lacking
     super-decimal digits will have a trailing 'H' appended.

     An effort has been made to ensure 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 tak-
     en 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-
     order 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 millenia. Next, the field is assumed to be a number: It is inter-
     preted 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-
     octal digits. Otherwise, it is converted as a decimal number.


     None. (See BUGS.)


     hosts(5), networks(5)


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


     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.

MirBSD #10-current               June 4, 1993                                1

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