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GNU networking utilities

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11.2 Diagnostics

Except for the last one listed below, all diagnostic messages are returned on the initial socket, after which any network connections are closed. An error is indicated by a leading byte with a value of 1 (0 is returned in step 10 above upon successful completion of all the steps prior to the execution of the login shell).

`Locuser too long'
The name of the user on the client's machine is longer than 16 characters.

`Ruser too long'
The name of the user on the remote machine is longer than 16 characters.

`Command too long'
The command line passed exceeds the size of the argument list (as configured into the system).

`Login incorrect'
No password file entry for the user name existed.

`Remote directory'
The chdir command to the home directory failed.

`Permission denied'
The authentication procedure described above failed.

`Can't make pipe.'
The pipe needed for the stderr, wasn't created.

`Can't fork; try again.'
A fork by the server failed.

`<shellname>: ...'
The user's login shell could not be started. This message is re- turned on the connection associated with the stderr, and is not preceded by a flag byte.

The authentication procedure used here assumes the integrity of each client machine and the connecting medium. This is insecure, but is useful in an "open" environment.

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