net_if.h man page on Archlinux

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net_if.h(0P)		   POSIX Programmer's Manual		  net_if.h(0P)

PROLOG
       This  manual  page is part of the POSIX Programmer's Manual.  The Linux
       implementation of this interface may differ (consult the	 corresponding
       Linux  manual page for details of Linux behavior), or the interface may
       not be implemented on Linux.

NAME
       net/if.h — sockets local interfaces

SYNOPSIS
       #include <net/if.h>

DESCRIPTION
       The <net/if.h> header shall define the  if_nameindex  structure,	 which
       shall include at least the following members:

	   unsigned  if_index  Numeric index of the interface.
	   char	    *if_name   Null-terminated name of the interface.

       The  <net/if.h> header shall define the following symbolic constant for
       the length of a buffer containing an interface name (including the ter‐
       minating NULL character):

       IF_NAMESIZE Interface name length.

       The following shall be declared as functions and may also be defined as
       macros. Function prototypes shall be provided.

	   void			 if_freenameindex(struct if_nameindex *);
	   char			*if_indextoname(unsigned, char *);
	   struct if_nameindex	*if_nameindex(void);
	   unsigned		 if_nametoindex(const char *);

       The following sections are informative.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       The  System  Interfaces	volume	of  POSIX.1‐2008,  if_freenameindex(),
       if_indextoname(), if_nameindex(), if_nametoindex()

COPYRIGHT
       Portions	 of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
       --  Portable  Operating	System	Interface (POSIX), The Open Group Base
       Specifications Issue 7, Copyright (C) 2013 by the Institute of Electri‐
       cal  and	 Electronics  Engineers,  Inc  and  The	 Open Group.  (This is
       POSIX.1-2008 with the 2013 Technical Corrigendum	 1  applied.)  In  the
       event of any discrepancy between this version and the original IEEE and
       The Open Group Standard, the original IEEE and The Open Group  Standard
       is  the	referee document. The original Standard can be obtained online
       at http://www.unix.org/online.html .

       Any typographical or formatting errors that appear  in  this  page  are
       most likely to have been introduced during the conversion of the source
       files to man page format. To report such errors,	 see  https://www.ker‐
       nel.org/doc/man-pages/reporting_bugs.html .

IEEE/The Open Group		     2013			  net_if.h(0P)
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