Vendor import of OpenSSH 4.6p1 for posterity's sake

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+SSH-ADD(1)                 OpenBSD Reference Manual                 SSH-ADD(1)
+
+NAME
+     ssh-add - adds RSA or DSA identities to the authentication agent
+
+SYNOPSIS
+     ssh-add [-cDdLlXx] [-t life] [file ...]
+     ssh-add -s reader
+     ssh-add -e reader
+
+DESCRIPTION
+     ssh-add adds RSA or DSA identities to the authentication agent,
+     ssh-agent(1).  When run without arguments, it adds the files
+     ~/.ssh/id_rsa, ~/.ssh/id_dsa and ~/.ssh/identity.  Alternative file names
+     can be given on the command line.  If any file requires a passphrase,
+     ssh-add asks for the passphrase from the user.  The passphrase is read
+     from the user's tty.  ssh-add retries the last passphrase if multiple
+     identity files are given.
+
+     The authentication agent must be running and the SSH_AUTH_SOCK environ-
+     ment variable must contain the name of its socket for ssh-add to work.
+
+     The options are as follows:
+
+     -c      Indicates that added identities should be subject to confirmation
+             before being used for authentication.  Confirmation is performed
+             by the SSH_ASKPASS program mentioned below.  Successful confirma-
+             tion is signaled by a zero exit status from the SSH_ASKPASS pro-
+             gram, rather than text entered into the requester.
+
+     -D      Deletes all identities from the agent.
+
+     -d      Instead of adding the identity, removes the identity from the
+             agent.
+
+     -e reader
+             Remove key in smartcard reader.
+
+     -L      Lists public key parameters of all identities currently repre-
+             sented by the agent.
+
+     -l      Lists fingerprints of all identities currently represented by the
+             agent.
+
+     -s reader
+             Add key in smartcard reader.
+
+     -t life
+             Set a maximum lifetime when adding identities to an agent.  The
+             lifetime may be specified in seconds or in a time format speci-
+             fied in sshd_config(5).
+
+     -X      Unlock the agent.
+
+     -x      Lock the agent with a password.
+
+ENVIRONMENT
+     DISPLAY and SSH_ASKPASS
+             If ssh-add needs a passphrase, it will read the passphrase from
+             the current terminal if it was run from a terminal.  If ssh-add
+             does not have a terminal associated with it but DISPLAY and
+             SSH_ASKPASS are set, it will execute the program specified by
+             SSH_ASKPASS and open an X11 window to read the passphrase.  This
+             is particularly useful when calling ssh-add from a .xsession or
+             related script.  (Note that on some machines it may be necessary
+             to redirect the input from /dev/null to make this work.)
+
+     SSH_AUTH_SOCK
+             Identifies the path of a unix-domain socket used to communicate
+             with the agent.
+
+FILES
+     ~/.ssh/identity
+             Contains the protocol version 1 RSA authentication identity of
+             the user.
+
+     ~/.ssh/id_dsa
+             Contains the protocol version 2 DSA authentication identity of
+             the user.
+
+     ~/.ssh/id_rsa
+             Contains the protocol version 2 RSA authentication identity of
+             the user.
+
+     Identity files should not be readable by anyone but the user.  Note that
+     ssh-add ignores identity files if they are accessible by others.
+
+DIAGNOSTICS
+     Exit status is 0 on success, 1 if the specified command fails, and 2 if
+     ssh-add is unable to contact the authentication agent.
+
+SEE ALSO
+     ssh(1), ssh-agent(1), ssh-keygen(1), sshd(8)
+
+AUTHORS
+     OpenSSH is a derivative of the original and free ssh 1.2.12 release by
+     Tatu Ylonen.  Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos, Theo
+     de Raadt and Dug Song removed many bugs, re-added newer features and cre-
+     ated OpenSSH.  Markus Friedl contributed the support for SSH protocol
+     versions 1.5 and 2.0.
+
+OpenBSD 4.1                   September 25, 1999                             2