-** SYSEXITS.H -- Exit status codes for system programs.
-**
-** This include file attempts to categorize possible error
-** exit statuses for system programs, notably delivermail
-** and the Berkeley network.
-**
-** Error numbers begin at EX__BASE to reduce the possibility of
-** clashing with other exit statuses that random programs may
-** already return. The meaning of the codes is approximately
-** as follows:
-**
-** 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.
-** EX_DATAERR -- The input data was incorrect in some way.
-** This should only be used for user's data & not
-** system files.
-** 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).
-** EX_NOUSER -- The user specified did not exist. This might
-** be used for mail addresses or remote logins.
-** EX_NOHOST -- The host specified did not exist. This is used
-** in mail addresses or network requests.
-** 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.
-** EX_SOFTWARE -- An internal software error has been detected.
-** This should be limited to non-operating system related
-** errors as possible.
-** 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.
-** 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).
-** EX_CANTCREAT -- A (user specified) output file cannot be
-** created.
-** EX_IOERR -- An error occurred while doing I/O on some file.
-** EX_TEMPFAIL -- temporary failure, indicating 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.
-** EX_PROTOCOL -- the remote system returned something that
-** was "not possible" during a protocol exchange.
-** EX_NOPERM -- You did not have sufficient permission to
-** perform the operation. This is not intended for
-** file system problems, which should use NOINPUT or
-** CANTCREAT, but rather for higher level permissions.
-** For example, kre uses this to restrict who students
-** can send mail to.
-**
-** Maintained by Eric Allman (eric@berkeley, ucbvax!eric) --
-** please mail changes to me.
-**
-** @(#)sysexits.h 4.5 7/6/88
-*/
+ * SYSEXITS.H -- Exit status codes for system programs.
+ *
+ * This include file attempts to categorize possible error
+ * exit statuses for system programs, notably delivermail
+ * and the Berkeley network.
+ *
+ * Error numbers begin at EX__BASE to reduce the possibility of
+ * clashing with other exit statuses that random programs may
+ * already return. The meaning of the codes is approximately
+ * as follows:
+ *
+ * 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.
+ * EX_DATAERR -- The input data was incorrect in some way.
+ * This should only be used for user's data & not
+ * system files.
+ * 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).
+ * EX_NOUSER -- The user specified did not exist. This might
+ * be used for mail addresses or remote logins.
+ * EX_NOHOST -- The host specified did not exist. This is used
+ * in mail addresses or network requests.
+ * 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.
+ * EX_SOFTWARE -- An internal software error has been detected.
+ * This should be limited to non-operating system related
+ * errors as possible.
+ * 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.
+ * 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).
+ * EX_CANTCREAT -- A (user specified) output file cannot be
+ * created.
+ * EX_IOERR -- An error occurred while doing I/O on some file.
+ * EX_TEMPFAIL -- temporary failure, indicating 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.
+ * EX_PROTOCOL -- the remote system returned something that
+ * was "not possible" during a protocol exchange.
+ * EX_NOPERM -- You did not have sufficient permission to
+ * perform the operation. This is not intended for
+ * file system problems, which should use NOINPUT or
+ * CANTCREAT, but rather for higher level permissions.
+ */
+
+#define EX_OK 0 /* successful termination */
+
+#define EX__BASE 64 /* base value for error messages */