freebsd-dev/lib/libipsec/ipsec_strerror.3

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.\" Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
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.\" $Id: ipsec_strerror.3,v 1.2 1999/09/21 03:49:19 itojun Exp $
.\" $FreeBSD$
.\"
.Dd May 6, 1998
.Dt IPSEC_STRERROR 3
.Os KAME
.\"
.Sh NAME
.Nm ipsec_strerror
.Nd error code for IPsec policy manipulation library
.\"
.Sh SYNOPSIS
.Fd #include <sys/types.h>
.Fd #include <netinet6/ipsec.h>
.Ft "char *"
.Fn ipsec_strerror void
.\"
.Sh DESCRIPTION
.Pa netinet6/ipsec.h
declares
.Pp
.Dl extern int ipsec_errcode;
.Pp
which is used to pass error code from IPsec policy manipulation library
to user program.
.Fn ipsec_strerror
can be used to obtain error message string for the error code.
.\"
.Sh RETURN VALUES
.Fn ipsec_strerror
always return a pointer to C string.
The C string must not be overwritten by user programs.
.\"
.\" .Sh SEE ALSO
.\"
.Sh HISTORY
The functions first appeared in WIDE/KAME IPv6 protocol stack kit.
.\"
.\" .Sh BUGS
.\" (to be written)