сокеты локальные интерфейсы (sockets local interfaces)
Пролог (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.
Имя (Name)
net/if.h — sockets local interfaces
Синопсис (Synopsis)
#include <net/if.h>
Описание (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 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.
Использование в приложениях (Application usage)
None.
Обоснование (Rationale)
None.
Будущие направления (Future directions)
None.
Смотри также (See also)
The System Interfaces volume of POSIX.1‐2017,
if_freenameindex(3p), if_indextoname(3p), if_nameindex(3p),
if_nametoindex(3p)
