freebsd-skq/lib/libipsec/ipsec_strerror.3
Jun-ichiro itojun Hagino 3c62e87aa3 synchronize with latest kame tree.
behavior change: policy syntax was changed.  you may need to update your
setkey(8) configuration files.
2000-07-04 16:22:05 +00:00

81 lines
2.6 KiB
Groff

.\" Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project.
.\" $FreeBSD$
.\" $KAME: ipsec_strerror.3,v 1.6 2000/05/07 05:25:03 itojun Exp $
.\"
.\" All rights reserved.
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.\" modification, are permitted provided that the following conditions
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.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. Neither the name of the project nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" SUCH DAMAGE.
.\"
.Dd May 6, 1998
.Dt IPSEC_STRERROR 3
.Os
.\"
.Sh NAME
.Nm ipsec_strerror
.Nd error code for IPsec policy manipulation library
.\"
.Sh SYNOPSIS
.Fd #include <netinet6/ipsec.h>
.Ft "char *"
.Fn ipsec_strerror
.\"
.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.
.Pp
The array pointed to is not to be modified by the program.
Since
.Fn ipsec_strerror
uses
.Xr strerror 3
as underlying function, calling
.Xr strerror 3
after
.Fn ipsec_strerror
would make the return value from
.Fn ipsec_strerror
invalid, or overwritten.
.\"
.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
.Xr ipsec_set_policy 3
.\"
.Sh HISTORY
The functions first appeared in WIDE/KAME IPv6 protocol stack kit.
.\"
.\" .Sh BUGS
.\" (to be written)