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PROLOG | NAME | SYNOPSIS | DESCRIPTION | APPLICATION USAGE | RATIONALE | FUTURE DIRECTIONS | SEE ALSO | COPYRIGHT |
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net_if.h(0P) POSIX Programmer's Manual net_if.h(0P)
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.
net/if.h — sockets local interfaces
#include <net/if.h>
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 terminating 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.
None.
None.
None.
The System Interfaces volume of POSIX.1‐2017,
if_freenameindex(3p), if_indextoname(3p), if_nameindex(3p),
if_nametoindex(3p)
Portions of this text are reprinted and reproduced in electronic
form from IEEE Std 1003.1-2017, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The
Open Group Base Specifications Issue 7, 2018 Edition, Copyright
(C) 2018 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 .
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.kernel.org/doc/man-pages/reporting_bugs.html .
IEEE/The Open Group 2017 net_if.h(0P)
Pages that refer to this page: if_freenameindex(3p), if_indextoname(3p), if_nameindex(3p), if_nametoindex(3p)
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HTML rendering created 2024-06-26 by Michael Kerrisk, author of The Linux Programming Interface. For details of in-depth Linux/UNIX system programming training courses that I teach, look here. Hosting by jambit GmbH. |
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