1 /* 2 * Copyright (c) 1987, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * %sccs.include.redist.c% 6 * 7 * @(#)sysexits.h 8.1 (Berkeley) 06/02/93 8 */ 9 10 #ifndef _SYSEXITS_H_ 11 #define _SYSEXITS_H_ 12 13 /* 14 * SYSEXITS.H -- Exit status codes for system programs. 15 * 16 * This include file attempts to categorize possible error 17 * exit statuses for system programs, notably delivermail 18 * and the Berkeley network. 19 * 20 * Error numbers begin at EX__BASE to reduce the possibility of 21 * clashing with other exit statuses that random programs may 22 * already return. The meaning of the codes is approximately 23 * as follows: 24 * 25 * EX_USAGE -- The command was used incorrectly, e.g., with 26 * the wrong number of arguments, a bad flag, a bad 27 * syntax in a parameter, or whatever. 28 * EX_DATAERR -- The input data was incorrect in some way. 29 * This should only be used for user's data & not 30 * system files. 31 * EX_NOINPUT -- An input file (not a system file) did not 32 * exist or was not readable. This could also include 33 * errors like "No message" to a mailer (if it cared 34 * to catch it). 35 * EX_NOUSER -- The user specified did not exist. This might 36 * be used for mail addresses or remote logins. 37 * EX_NOHOST -- The host specified did not exist. This is used 38 * in mail addresses or network requests. 39 * EX_UNAVAILABLE -- A service is unavailable. This can occur 40 * if a support program or file does not exist. This 41 * can also be used as a catchall message when something 42 * you wanted to do doesn't work, but you don't know 43 * why. 44 * EX_SOFTWARE -- An internal software error has been detected. 45 * This should be limited to non-operating system related 46 * errors as possible. 47 * EX_OSERR -- An operating system error has been detected. 48 * This is intended to be used for such things as "cannot 49 * fork", "cannot create pipe", or the like. It includes 50 * things like getuid returning a user that does not 51 * exist in the passwd file. 52 * EX_OSFILE -- Some system file (e.g., /etc/passwd, /etc/utmp, 53 * etc.) does not exist, cannot be opened, or has some 54 * sort of error (e.g., syntax error). 55 * EX_CANTCREAT -- A (user specified) output file cannot be 56 * created. 57 * EX_IOERR -- An error occurred while doing I/O on some file. 58 * EX_TEMPFAIL -- temporary failure, indicating something that 59 * is not really an error. In sendmail, this means 60 * that a mailer (e.g.) could not create a connection, 61 * and the request should be reattempted later. 62 * EX_PROTOCOL -- the remote system returned something that 63 * was "not possible" during a protocol exchange. 64 * EX_NOPERM -- You did not have sufficient permission to 65 * perform the operation. This is not intended for 66 * file system problems, which should use NOINPUT or 67 * CANTCREAT, but rather for higher level permissions. 68 */ 69 70 #define EX_OK 0 /* successful termination */ 71 72 #define EX__BASE 64 /* base value for error messages */ 73 74 #define EX_USAGE 64 /* command line usage error */ 75 #define EX_DATAERR 65 /* data format error */ 76 #define EX_NOINPUT 66 /* cannot open input */ 77 #define EX_NOUSER 67 /* addressee unknown */ 78 #define EX_NOHOST 68 /* host name unknown */ 79 #define EX_UNAVAILABLE 69 /* service unavailable */ 80 #define EX_SOFTWARE 70 /* internal software error */ 81 #define EX_OSERR 71 /* system error (e.g., can't fork) */ 82 #define EX_OSFILE 72 /* critical OS file missing */ 83 #define EX_CANTCREAT 73 /* can't create (user) output file */ 84 #define EX_IOERR 74 /* input/output error */ 85 #define EX_TEMPFAIL 75 /* temp failure; user is invited to retry */ 86 #define EX_PROTOCOL 76 /* remote error in protocol */ 87 #define EX_NOPERM 77 /* permission denied */ 88 #define EX_CONFIG 78 /* configuration error */ 89 90 #define EX__MAX 78 /* maximum listed value */ 91 92 #endif /* !_SYSEXITS_H_ */ 93