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Diffstat (limited to 'lib/libipsec/ipsec_strerror.3')
-rw-r--r-- | lib/libipsec/ipsec_strerror.3 | 90 |
1 files changed, 90 insertions, 0 deletions
diff --git a/lib/libipsec/ipsec_strerror.3 b/lib/libipsec/ipsec_strerror.3 new file mode 100644 index 0000000..45e1113 --- /dev/null +++ b/lib/libipsec/ipsec_strerror.3 @@ -0,0 +1,90 @@ +.\" $KAME: ipsec_strerror.3,v 1.9 2001/08/17 07:21:36 itojun Exp $ +.\" +.\" Copyright (C) 1995, 1996, 1997, 1998, and 1999 WIDE Project. +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" 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. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd February 14, 2006 +.Dt IPSEC_STRERROR 3 +.Os +.\" +.Sh NAME +.Nm ipsec_strerror +.Nd error messages for the IPsec policy manipulation library +.\" +.Sh SYNOPSIS +.In netipsec/ipsec.h +.Ft "const char *" +.Fn ipsec_strerror +.\" +.Sh DESCRIPTION +.In netipsec/ipsec.h +declares +.Pp +.Dl extern int ipsec_errcode; +.Pp +which is used to pass an error code from IPsec policy manipulation library +to a user program. +The +.Fn ipsec_strerror +function can be used to obtain the 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 an underlying function, calling +.Xr strerror 3 +after +.Fn ipsec_strerror +would overwrite the return value from +.Fn ipsec_strerror +and make it invalid. +.\" +.Sh RETURN VALUES +The +.Fn ipsec_strerror +function always returns a pointer to C string. +The C string must not be overwritten by the caller. +.\" +.Sh SEE ALSO +.Xr ipsec_set_policy 3 +.\" +.Sh HISTORY +The +.Fn ipsec_strerror +function first appeared in WIDE/KAME IPv6 protocol stack kit. +.\" +.Sh BUGS +The +.Fn ipsec_strerror +function will return its result which may be overwritten by subsequent calls. +.Pp +.Va ipsec_errcode +is not thread safe. |