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-- Exit codes for system programs
-- Copyright 2013 B. Persson, Bjorn@Rombobeorn.se
--
-- This library is free software: you can redistribute it and/or modify it
-- under the terms of the GNU General Public License version 3, as published
-- by the Free Software Foundation.
with Ada.Command_Line;
package Berkeley_Exit_Codes is
-- This package defines exit codes corresponding to those defined in
-- sysexits.h from BSD. It is suggested that milters should use these exit
-- codes where it makes sense, in addition to those in Ada.Command_Line,
-- and maybe other ranges for other kinds of errors. The meaning of each
-- code is approximately described below.
subtype Exit_Code is Ada.Command_Line.Exit_Status range 64 .. 78;
-- Exit_Status'First = EX__BASE, Exit_Status'Last = EX__MAX
Usage_Error : constant Exit_Code := 64; -- EX_USAGE
-- The command was used incorrectly, e.g., with the wrong number of
-- arguments, a bad flag, a bad syntax in a parameter, or whatever.
Data_Format_Error : constant Exit_Code := 65; -- EX_DATAERR
-- The input data was incorrect in some way. This should only be used for
-- users' data and not for system files.
Cannot_Open_Input : constant Exit_Code := 66; -- EX_NOINPUT
-- An input file (not a system file) did not exist or was not readable.
-- This could also include errors like "no message" to a mailer (if it cared
-- to catch it).
Unknown_User : constant Exit_Code := 67; -- EX_NOUSER
-- The user specified did not exist. This might be used for mail addresses
-- or remote logins.
Unknown_Host : constant Exit_Code := 68; -- EX_NOHOST
-- The host specified did not exist. This is used for mail addresses or
-- network requests.
Service_Unavailable : constant Exit_Code := 69; -- EX_UNAVAILABLE
-- A service is unavailable. This can occur if a support program or file
-- does not exist. This can also be used as a catchall message when
-- something you wanted to do doesn't work, but you don't know why.
Software_Error : constant Exit_Code := 70; -- EX_SOFTWARE
-- An internal software error has been detected. This should be limited to
-- non-operating system related errors as possible.
OS_Error : constant Exit_Code := 71; -- EX_OSERR
-- An operating system error has been detected. This is intended to be used
-- for such things as "cannot fork", "cannot create pipe", or the like. It
-- includes things like getuid returning a user that does not exist in the
-- passwd file.
OS_File_Error : constant Exit_Code := 72; -- EX_OSFILE
-- Some system file (e.g., /etc/passwd, /etc/utmp, etc.) does not exist,
-- cannot be opened, or has some sort of error (e.g., syntax error).
Cannot_Create_File : constant Exit_Code := 73; -- EX_CANTCREAT
-- A (user specified) output file cannot be created.
IO_Error : constant Exit_Code := 74; -- EX_IOERR
-- An error occurred while doing I/O on some file.
Temporary_Failure : constant Exit_Code := 75; -- EX_TEMPFAIL
-- Temporary failure indicates something that is not really an error. In
-- Sendmail, this means that a mailer (e.g.) could not create a connection,
-- and the request should be reattempted later.
Protocol_Error : constant Exit_Code := 76; -- EX_PROTOCOL
-- The remote system returned something that was "not possible" during a
-- protocol exchange.
Permission_Denied : constant Exit_Code := 77; -- EX_NOPERM
-- You did not have sufficient permission to perform the operation. This is
-- not intended for file system problems, which should use Cannot_Open_Input
-- or Cannot_Create_File, but rather for higher level permissions.
Configuration_Error : constant Exit_Code := 78; -- EX_CONFIG
end Berkeley_Exit_Codes;
-- The descriptions of the exit codes were copied from sysexits.h, which
-- contained the following text:
--
-- Copyright (c) 1987, 1993
-- The Regents of the University of California. 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.
-- 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
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