+++ /dev/null
-.\" Copyright (c) 2012 YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
-.\"
-.\" %%%LICENSE_START(VERBATIM)
-.\" Permission is granted to make and distribute verbatim copies of this
-.\" manual provided the copyright notice and this permission notice are
-.\" preserved on all copies.
-.\"
-.\" Permission is granted to copy and distribute modified versions of
-.\" this manual under the conditions for verbatim copying, provided that
-.\" the entire resulting derived work is distributed under the terms of
-.\" a permission notice identical to this one.
-.\"
-.\" Since the Linux kernel and libraries are constantly changing, this
-.\" manual page may be incorrect or out-of-date. The author(s) assume
-.\" no responsibility for errors or omissions, or for damages resulting
-.\" from the use of the information contained herein. The author(s) may
-.\" not have taken the same level of care in the production of this
-.\" manual, which is licensed free of charge, as they might when working
-.\" professionally.
-.\"
-.\" Formatted or processed versions of this manual, if unaccompanied by
-.\" the source, must acknowledge the copyright and authors of this work.
-.\" %%%LICENSE_END
-.\"
-.TH IF_NAMETOINDEX 3 2014-04-01 "GNU" "Linux Programmer's Manual"
-.SH NAME
-if_nametoindex, if_indextoname \- mappings between network interface
-names and indexes
-.SH SYNOPSIS
-.nf
-.B #include <net/if.h>
-.sp
-.BI "unsigned int if_nametoindex(const char *" "ifname" );
-.sp
-.BI "char *if_indextoname(unsigned int ifindex, char *" ifname );
-.fi
-.SH DESCRIPTION
-The
-.BR if_nametoindex ()
-function returns the index of the network interface
-corresponding to the name
-.IR ifname .
-
-The
-.BR if_indextoname ()
-function returns the name of the network interface
-corresponding to the interface index
-.IR ifindex .
-The name is placed in the buffer pointed to by
-.IR ifname .
-The buffer must allow for the storage of at least
-.B IF_NAMESIZE
-bytes.
-.SH RETURN VALUE
-On success,
-.BR if_nametoindex ()
-returns the index number of the network interface;
-on error, 0 is returned and
-.I errno
-is set appropriately.
-
-On success,
-.BR if_indextoname ()
-returns
-.IR ifname ;
-on error, NULL is returned and
-.I errno
-is set appropriately.
-.SH ERRORS
-.BR if_indextoname ()
-may fail and set
-.I errno
-if:
-.TP
-.B ENXIO
-No interface found for the index.
-.PP
-.BR if_nametoindex ()
-and
-.BR if_indextoname ()
-may also fail for any of the errors specified for
-.BR socket (2)
-or
-.BR ioctl (2).
-.SH ATTRIBUTES
-.SS Multithreading (see pthreads(7))
-The
-.BR if_nametoindex ()
-and
-.BR if_indextoname ()
-functions are thread-safe.
-.SH CONFORMING TO
-RFC\ 3493, POSIX.1-2001.
-
-This function first appeared in BSDi.
-.SH SEE ALSO
-.BR getifaddrs (3),
-.BR if_nameindex (3),
-.BR ifconfig (8)
-.SH COLOPHON
-This page is part of release 3.79 of the Linux
-.I man-pages
-project.
-A description of the project,
-information about reporting bugs,
-and the latest version of this page,
-can be found at
-\%http://www.kernel.org/doc/man\-pages/.
OSDN Git Service
