.\"	$NetBSD: ipsec_strerror.3,v 1.13 2018/09/06 09:38:05 maxv Exp $
.\"
.\"	$KAME: ipsec_strerror.3,v 1.9 2001/08/17 07:21:36 itojun Exp $
.\"
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.Dd September 6, 2018
.Dt IPSEC_STRERROR 3
.Os
.\"
.Sh NAME
.Nm ipsec_strerror
.Nd error messages for the IPsec policy manipulation library
.\"
.Sh LIBRARY
.Lb libipsec
.Sh SYNOPSIS
.In netipsec/ipsec.h
.Ft "const char *"
.Fn ipsec_strerror void
.\"
.Sh DESCRIPTION
.Fn ipsec_strerror
can be used to obtain the error message string for the error code.
.Pp
Since
.Fn ipsec_strerror
uses
.Xr strerror 3
as underlying function, calling
.Xr strerror 3
after
.Fn ipsec_strerror
will make the return value from
.Fn ipsec_strerror
invalid or overwritten.
.\"
.Sh RETURN VALUES
.Fn ipsec_strerror
always returns a pointer to a C string.
The C string must not be overwritten by the calling program.
.\"
.Sh SEE ALSO
.Xr ipsec_set_policy 3
.\"
.Sh HISTORY
.Fn ipsec_strerror
first appeared in the WIDE/KAME IPv6 protocol stack kit.
.\"
.Sh BUGS
.Fn ipsec_strerror
will return its result which may be overwritten by subsequent calls.
.Pp
.Va ipsec_errcode
is not thread safe.