Visit Our UNIX and Linux User Community

Linux and UNIX Man Pages

Test Your Knowledge in Computers #315
Difficulty: Easy
To bypass US Munitions Export Laws, the creator of the PGP published all the source code in a binary format.
True or False?
Linux & Unix Commands - Search Man Pages

ns_addr(3n) [bsd man page]

NS(3N)																	    NS(3N)

NAME
ns_addr, ns_ntoa - Xerox NS(tm) address conversion routines SYNOPSIS
#include <sys/types.h> #include <netns/ns.h> struct ns_addr ns_addr(cp) char *cp; char *ns_ntoa(ns) struct ns_addr ns; DESCRIPTION
The routine ns_addr interprets character strings representing XNS addresses, returning binary information suitable for use in system calls. ns_ntoa takes XNS addresses and returns ASCII strings representing the address in a notation in common use in the Xerox Development Envi- ronment: <network number>.<host number>.<port number> Trailing zero fields are suppressed, and each number is printed in hexadecimal, in a format suitable for input to ns_addr. Any fields lacking super-decimal digits will have a trailing ``H'' appended. Unfortunately, no universal standard exists for representing XNS addresses. An effort has been made to insure that ns_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-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 separating the millenia. Next, the field is assumed to be a number: It is interpreted 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 is there is a leading ``0'' and there are no super-octal digits. Otherwise, it is converted as a decimal number. SEE ALSO
hosts(5), networks(5), DIAGNOSTICS
None (see BUGS). BUGS
The string returned by ns_ntoa resides in a static memory area. ns_addr should diagnose improperly formed input, and there should be an unambiguous way to recognize this. 4.3 Berkeley Distribution May 12, 1986 NS(3N)

Check Out this Related Man Page

NS(3N)																	    NS(3N)

NAME
ns_addr, ns_ntoa - Xerox NS(tm) address conversion routines SYNOPSIS
#include <sys/types.h> #include <netns/ns.h> struct ns_addr ns_addr(cp) char *cp; char *ns_ntoa(ns) struct ns_addr ns; DESCRIPTION
The routine ns_addr interprets character strings representing XNS addresses, returning binary information suitable for use in system calls. ns_ntoa takes XNS addresses and returns ASCII strings representing the address in a notation in common use in the Xerox Development Envi- ronment: <network number>.<host number>.<port number> Trailing zero fields are suppressed, and each number is printed in hexadecimal, in a format suitable for input to ns_addr. Any fields lacking super-decimal digits will have a trailing ``H'' appended. Unfortunately, no universal standard exists for representing XNS addresses. An effort has been made to insure that ns_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-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 separating the millenia. Next, the field is assumed to be a number: It is interpreted 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 is there is a leading ``0'' and there are no super-octal digits. Otherwise, it is converted as a decimal number. SEE ALSO
hosts(5), networks(5), DIAGNOSTICS
None (see BUGS). BUGS
The string returned by ns_ntoa resides in a static memory area. ns_addr should diagnose improperly formed input, and there should be an unambiguous way to recognize this. 4.3 Berkeley Distribution May 12, 1986 NS(3N)

Featured Tech Videos