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>IPX(3) System Library Functions Manual IPX(3)
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>IPX(3) System Library Functions Manual IPX(3)
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NAME
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NAME
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ipx_addr, ipx_ntoa - IPX address conversion routines
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ipx_addr, ipx_ntoa - IPX address conversion routines
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SYNOPSIS
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SYNOPSIS
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#include <sys/types.h>
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#include <sys/types.h>
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#include <netipx/ipx.h>
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#include <netipx/ipx.h>
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struct ipx_addr
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struct ipx_addr
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ipx_addr(const char *cp);
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ipx_addr(const char *cp);
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char *
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char *
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ipx_ntoa(struct ipx_addr ipx);
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ipx_ntoa(struct ipx_addr ipx);
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DESCRIPTION
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DESCRIPTION
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The routine ipx_addr() interprets character strings representing IPX
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The routine ipx_addr() interprets character strings representing IPX
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addresses, returning binary information suitable for use in system calls.
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addresses, returning binary information suitable for use in system calls.
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The routine ipx_ntoa() takes IPX addresses and returns ASCII strings rep-
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The routine ipx_ntoa() takes IPX addresses and returns ASCII strings rep-
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resenting the address in a notation in common use:
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resenting the address in a notation in common use:
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<network number>.<host number>.<port number>
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<network number>.<host number>.<port number>
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Trailing zero fields are suppressed, and each number is printed in hex-
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Trailing zero fields are suppressed, and each number is printed in hex-
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adecimal, in a format suitable for input to ipx_addr(). Any fields lack-
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adecimal, in a format suitable for input to ipx_addr(). Any fields lack-
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ing super-decimal digits will have a trailing `H' appended.
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ing super-decimal digits will have a trailing `H' appended.
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An effort has been made to ensure that ipx_addr() be compatible with most
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An effort has been made to ensure that ipx_addr() be compatible with most
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formats in common use. It will first separate an address into 1 to 3
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formats in common use. It will first separate an address into 1 to 3
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fields using a single delimiter chosen from period (`.'), colon (`:'), or
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fields using a single delimiter chosen from period (`.'), colon (`:'), or
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pound-sign (`#'). Each field is then examined for byte separators (colon
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pound-sign (`#'). Each field is then examined for byte separators (colon
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or period). If there are byte separators, each subfield separated is
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or period). If there are byte separators, each subfield separated is
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taken to be a small hexadecimal number, and the entirety is taken as a
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taken to be a small hexadecimal number, and the entirety is taken as a
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network-byte-ordered quantity to be zero extended in the high-network-
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network-byte-ordered quantity to be zero extended in the high-network-
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order bytes. Next, the field is inspected for hyphens, in which case the
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order bytes. Next, the field is inspected for hyphens, in which case the
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field is assumed to be a number in decimal notation with hyphens separat-
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field is assumed to be a number in decimal notation with hyphens separat-
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ing the millenia. Next, the field is assumed to be a number: It is
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ing the millenia. Next, the field is assumed to be a number: It is
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interpreted as hexadecimal if there is a leading `0x' (as in C), a trail-
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interpreted as hexadecimal if there is a leading `0x' (as in C), a trail-
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ing `H' (as in Mesa), or there are any super-decimal digits present. It
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ing `H' (as in Mesa), or there are any super-decimal digits present. It
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is interpreted as octal is there is a leading `0' and there are no super-
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is interpreted as octal is there is a leading `0' and there are no super-
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octal digits. Otherwise, it is converted as a decimal number.
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octal digits. Otherwise, it is converted as a decimal number.
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RETURN VALUES
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RETURN VALUES
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None. (See BUGS.)
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None. (See BUGS.)
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SEE ALSO
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SEE ALSO
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ns(4), hosts(5), networks(5)
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ns(4), hosts(5), networks(5)
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HISTORY
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HISTORY
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The precursor ns_addr() and ns_ntoa() functions appeared in 4.3BSD.
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The precursor ns_addr() and ns_ntoa() functions appeared in 4.3BSD.
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BUGS
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BUGS
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The string returned by ipx_ntoa() resides in a static memory area. The
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The string returned by ipx_ntoa() resides in a static memory area. The
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function ipx_addr() should diagnose improperly formed input, and there
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function ipx_addr() should diagnose improperly formed input, and there
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should be an unambiguous way to recognize this.
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should be an unambiguous way to recognize this.
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BSD June 4, 1993 BSD
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BSD June 4, 1993 BSD
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