freebsd-skq/lib/libsysdecode/sysdecode_abi_to_freebsd_errno.3
jhb ae6222b0c3 Drop "All rights reserved" from my copyright statements.
Reviewed by:	rgrimes
MFC after:	1 month
Differential Revision:	https://reviews.freebsd.org/D19485
2019-03-06 22:11:45 +00:00

97 lines
2.8 KiB
Groff

.\"
.\" Copyright (c) 2016 John Baldwin <jhb@FreeBSD.org>
.\"
.\" 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.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 October 17, 2016
.Dt sysdecode_abi_to_freebsd_errno 3
.Os
.Sh NAME
.Nm sysdecode_abi_to_freebsd_errno ,
.Nm sysdecode_freebsd_to_abi_errno
.Nd translate error numbers between process ABIs
.Sh LIBRARY
.Lb libsysdecode
.Sh SYNOPSIS
.In sys/types.h
.In stdbool.h
.In sysdecode.h
.Ft int
.Fn sysdecode_abi_to_freebsd_errno "enum sysdecode_abi abi" "int error"
.Ft int
.Fn sysdecode_freebsd_to_abi_errno "enum sysdecode_abi abi" "int error"
.Sh DESCRIPTION
The
.Fn sysdecode_abi_to_freebsd_errno
function returns the native
.Xr errno 2
value that corresponds to the error indicated by
.Fa error
for the process ABI
.Fa abi .
If
.Fa error
does not identify a valid error for
.Fa abi ,
.Dv INT_MAX
is returned.
.Pp
The
.Fn sysdecode_freebsd_to_abi_errno
function the error value for the process ABI
.Fa abi
that corresponds to the native
.Xr errno 2
value
.Fa error .
If
.Fa error
does not identify a valid
.Xr errno 2
error,
.Dv INT_MAX
is returned.
.Pp
Note that the mappings between native
.Xr errno 2
values and errors for other ABIs are not exhaustive.
If a mapping does not exist,
these functions return
.Dv INT_MAX .
In addition, multiple error values in one ABI may map to a single
error in another ABI.
.Sh RETURN VALUES
These functions return an error value on success or
.Dv INT_MAX
if
.Fa error
is not valid.
.Pp
For the list of supported ABIs,
see
.Xr sysdecode 3 .
.Sh SEE ALSO
.Xr sysdecode 3 ,
.Xr sysdecode_syscallnames 3