Man If_nameindex en anglais
IF_NAMEINDEX(P)            POSIX Programmer's Manual           IF_NAMEINDEX(P)



 

NAME


       if_nameindex - return all network interface names and indexes

 

SYNOPSIS


       #include 

       struct if_nameindex *if_nameindex(void);


 

DESCRIPTION






       The  if_nameindex()  function  shall  return  an  array of if_nameindex
       structures, one structure per interface. The end of the array is  indi-
       cated  by  a  structure  with  an if_index field of zero and an if_name
       field of NULL.

       Applications should call if_freenameindex() to release the memory  that
       may be dynamically allocated by this function, after they have finished
       using it.

 

RETURN VALUE


       An array of structures identifying local interfaces. A NULL pointer  is
       returned upon an error, with errno set to indicate the error.

 

ERRORS


       The if_nameindex() function may fail if:

 

       ENOBUFS


              Insufficient resources are available to complete the function.


       The following sections are informative.

 

EXAMPLES


       None.

 

APPLICATION USAGE


       None.

 

RATIONALE


       None.

 

FUTURE DIRECTIONS


       None.

 

SEE ALSO


       getsockopt() , if_freenameindex() , if_indextoname() , if_nametoindex()
       , setsockopt() , the Base Definitions volume  of  IEEE Std 1003.1-2001,
       

 

COPYRIGHT


       Portions  of  this text are reprinted and reproduced in electronic form
       from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
       --  Portable  Operating  System  Interface (POSIX), The Open Group Base
       Specifications Issue 6, Copyright (C) 2001-2003  by  the  Institute  of
       Electrical  and  Electronics  Engineers, Inc and The Open Group. 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.opengroup.org/unix/online.html .



IEEE/The Open Group                  2003                      IF_NAMEINDEX(P)