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135 lines
8.6 KiB
135 lines
8.6 KiB
15 years ago
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This file is roughly based on your systems errno.h.
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Many perl errors can be exported as errors defined in errno.h by doing the
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following:
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use Errno qw(EINTR EIO :POSIX);
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or simply use Errno.
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The semantics of this file are as follows:
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A numerical error code followed by a human readable upper case short definition, which is followed by an
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explanation of the actual error code.
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We assume, that the interpreter you use returns an
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error code of 1 upon failing to execute your script and an error code of 0 if
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the execution is successful. This does NOT include any data passed from
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the script or any errors which might occur during runtime, it is simply a
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way for us to determine wheter your script started at all and if any more
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output should be expected.
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Some of the errors described below can be categorized, those categories range
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from warning over critical to fatal.
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An error which would terminate your script and therefore close the running
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process, would be considered as fatal.
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An error which would prevent your script from sending valid output, yet
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not terminate its process would be considered as critical. Any other
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error is considered as warning. A warning is always
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OPTIONAL, critical errors and fatal errors MUST be implemented
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Depending on which script language or programming language you use it is
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up to you, to determine wheter an error is fatal, critical or just a warning,
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some suggestions have been made in the list below.
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Generic and system error section:
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0 NOERR No error has been detected
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1 EPERM The operation is not permitted by the executing program.
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Which means, that some fatal error occurred and
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your script could not even be started.
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2 ENOENT A file or directory your script wanted to read or write
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could not be found and the scripts operation was
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hampered by that.
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5 EIO There has been an error while your script
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attempted to read or write data
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7 E2BIG If your scripts accepts arguments at the command
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line, this error means, that too many arguments
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were entered. This error code is not in
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effect yet.
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8 ENOEXEC If your script relies on system level programs and that
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program could not be executed, use this
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error code to report that to
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knewsticker. This is an informational
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error code and not necessarily a fatal
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one
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13 EACCESS permission to a resource or file has been denied to
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your script, which does not allow it to
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properly function, this error is fatal
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and should be followed at once by
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and exit code of 1
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19 ENODEV A device you are trying to write to is not
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available, as above this error code is
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fatal, it should be followed by an exit
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code of 1 to terminate your scripts
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operation.
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28 ENOSPC There is no more space left on the device you are
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trying to write a temporary file to.
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30 EROFS You are trying to write a temporary file to an
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read only file system
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38 ENOSYS Your script tried to call a function which was not
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implemented or it is trying to access an
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external resource which does not exist.
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You can also use this error code when
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you are writing a perl script and the
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modules functions you are trying to
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access is not present.
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61 ENODATA Your script has not been able to retrieve any data.
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Thus no XML can be returned. This error
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is critical, yet not necessarily fatal.
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---------------------------------------------------------
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Network related errors.
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64 ENONET The machine you are using is not connected to a
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network. This error is fatal
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71 EPROTO Your script tried to access a protocol which is not
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implemented. This would mean, that you
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are trying to use SNMP on a system that
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does not understand it
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89 EDESTADDRREQ Your script requires for the user to enter a destination
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address to retrieve data from.
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This error is used when that has
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not been done. It is
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informational yet fatal
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to the script
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94 ESOCKTNOSUPPORT Your script is trying to use a socket type not supported
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by the system, for
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example trying to open a
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unix socket of a
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system where this is not
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supported
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101 ENETUNREACH The network you are trying to access is
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unreachable
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102 ENETRESET The network you were trying to access dropped the
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connection with a reset
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104 ECONNRESET The connection you had has been reset by your peer
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110 ETIMEDOUT The connection you were trying to establish timed out
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111 ECONNREFUSED The connection you were trying to established has been refused
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112 EHOSTDOWN The host you are trying to reach is down
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113 EHOSTUNREACH The host you are trying to reach is unreachable, no route
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to host
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Please NOTE that above error codes ONLY correspond to the error numbers defined
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on Linux i386 machines if you wish to use the Perl method mentioned.
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The error codes which are mentioned above are _reserved_ for newsticker internal
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use and have not necessarily anything to do with the error codes returned by
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your system.
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----------------
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Since we are possibly dealing often with HTTP error codes this is a specialized
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section you may use to return errors based on that protocol.
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These error codes correspond to the actual HTTP error codes, thus enabling
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you to handle them easier when passing them on to Knewsticker.
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Client errors:
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400 EBADREQ Bad Request. Your script sent a bad request, not
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understood by the server, which is
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reporting this back to you.
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401 ENOAUTH No authorization has been issued for an area that needs
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some form of authorization before it can
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be accessed
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402 EMUSTPAY You cannot access the data without paying for it, this
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is not a bogus error, it is defined as
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such in the http protocol
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403 EFORBIDDEN You are forbidden to access the source you requested
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404 ENOTFOUND The data you tried to access could not be found.
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408 ETIMEOUT Your HTTP request timed out, this is an error which
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reflects timeouts for the HTTP protocol
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ONLY. Generic time outs are handled in
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the above paragraph
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Server errors:
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500 ESERVERE A server error has been encountered.
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505 EHTTPNOSUP The HTTP protocol version you attempted to use was not
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understood by the http server or source
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you were trying to access
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-------------------
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