System Exit Values

Detailed Description

Exit codes.

Some platforms (android) don't provide sysexits.h. To work around this we define our own exit codes, which use the system values if provided or otherwise our default values.

Files
file	SysExits.cpp
file	SysExits.h

Variables
const int	ola::EXIT_OK = EX_OK
	successful termination
const int	ola::EXIT__BASE = EX__BASE
	base value for error messages
const int	ola::EXIT_USAGE = EX_USAGE
	command line usage error
const int	ola::EXIT_DATAERR = EX_DATAERR
	data format error
const int	ola::EXIT_NOINPUT = EX_NOINPUT
	cannot open input
const int	ola::EXIT_NOUSER = EX_NOUSER
	addresses unknown
const int	ola::EXIT_NOHOST = EX_NOHOST
	host name unknown
const int	ola::EXIT_UNAVAILABLE = EX_UNAVAILABLE
	service unavailable
const int	ola::EXIT_SOFTWARE = EX_SOFTWARE
	internal software error
const int	ola::EXIT_OSERR = EX_OSERR
	system error (e.g can't fork)
const int	ola::EXIT_OSFILE = EX_OSFILE
	critical OS file missing
const int	ola::EXIT_CANTCREAT = EX_CANTCREAT
	can't create (user) output file
const int	ola::EXIT_IOERR = EX_IOERR
	input/output error
const int	ola::EXIT_TEMPFAIL = EX_TEMPFAIL
	temp faliure; user can rety
const int	ola::EXIT_PROTOCOL = EX_PROTOCOL
	remote error in protocol
const int	ola::EXIT_NOPERM = EX_NOPERM
	permission denied
const int	ola::EXIT_CONFIG = EX_CONFIG
	configuration error
const int	ola::EXIT__MAX = EX__MAX
	maximum listed value

Fallback values
These are the values we fall back to in case the os doesn't provide exit codes
#define	EX_OK   0
	successful termination
#define	EX__BASE   64
	base value for error messages
#define	EX_USAGE   64
	command line usage error
#define	EX_DATAERR   65
	data format error
#define	EX_NOINPUT   66
	cannot open input
#define	EX_NOUSER   67
	addressee unknown
#define	EX_NOHOST   68
	host name unknown
#define	EX_UNAVAILABLE   69
	service unavailable
#define	EX_SOFTWARE   70
	internal software error
#define	EX_OSERR   71
	system error (e.g., can't fork)
#define	EX_OSFILE   72
	critical OS file missing
#define	EX_CANTCREAT   73
	can't create (user) output file
#define	EX_IOERR   74
	input/output error
#define	EX_TEMPFAIL   75
	temp failure; user is invited to retry
#define	EX_PROTOCOL   76
	remote error in protocol
#define	EX_NOPERM   77
	permission denied
#define	EX_CONFIG   78
	configuration error
#define	EX__MAX   78
	maximum listed value