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55 lines
1.6 KiB
Plaintext
55 lines
1.6 KiB
Plaintext
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.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
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.TH "IF_NAMETOINDEX" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
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.\" if_nametoindex
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.SH NAME
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if_nametoindex \- map a network interface name to its corresponding
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index
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.SH SYNOPSIS
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.LP
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\fB#include <net/if.h>
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.br
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.sp
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unsigned if_nametoindex(const char *\fP\fIifname\fP\fB);
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.br
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\fP
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.SH DESCRIPTION
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.LP
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The \fIif_nametoindex\fP() function shall return the interface index
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corresponding to name \fIifname\fP.
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.SH RETURN VALUE
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.LP
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The corresponding index if \fIifname\fP is the name of an interface;
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otherwise, zero.
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.SH ERRORS
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.LP
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No errors are defined.
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.LP
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\fIThe following sections are informative.\fP
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.SH EXAMPLES
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.LP
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None.
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.SH APPLICATION USAGE
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.LP
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None.
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.SH RATIONALE
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.LP
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None.
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.SH FUTURE DIRECTIONS
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.LP
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None.
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.SH SEE ALSO
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.LP
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\fIgetsockopt\fP() , \fIif_freenameindex\fP() , \fIif_indextoname\fP()
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, \fIif_nameindex\fP() , \fIsetsockopt\fP() , the Base Definitions
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volume of IEEE\ Std\ 1003.1-2001, \fI<net/if.h>\fP
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.SH COPYRIGHT
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Portions of this text are reprinted and reproduced in electronic form
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from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
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-- Portable Operating System Interface (POSIX), The Open Group Base
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Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
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Electrical and Electronics Engineers, Inc and The Open Group. In the
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event of any discrepancy between this version and the original IEEE and
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The Open Group Standard, the original IEEE and The Open Group Standard
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is the referee document. The original Standard can be obtained online at
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http://www.opengroup.org/unix/online.html .
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