Originální popis anglicky:
if_nameindex - return all network interface names and indexes
Návod, kniha: POSIX Programmer's Manual
#include <net/if.h>
struct if_nameindex *
if_nameindex(void);
The
if_nameindex() function shall return an array of
if_nameindex
structures, one structure per interface. The end of the array is indicated 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.
An array of structures identifying local interfaces. A NULL pointer is returned
upon an error, with
errno set to indicate the error.
The
if_nameindex() function may fail if:
- ENOBUFS
- Insufficient resources are available to complete the
function.
The following sections are informative.
None.
None.
None.
None.
getsockopt() ,
if_freenameindex() ,
if_indextoname() ,
if_nametoindex() ,
setsockopt() , the Base Definitions volume of
IEEE Std 1003.1-2001,
<net/if.h>
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
.
