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Diffstat (limited to '')
| -rw-r--r-- | doc/ChangeLog | 4 | ||||
| -rw-r--r-- | doc/gpg-agent.texi | 33 |
2 files changed, 27 insertions, 10 deletions
diff --git a/doc/ChangeLog b/doc/ChangeLog index 2bffa5faf..53d7faf27 100644 --- a/doc/ChangeLog +++ b/doc/ChangeLog @@ -1,3 +1,7 @@ +2009-03-02 Werner Koch <[email protected]> + + * gpg-agent.texi (Invoking GPG-AGENT): Modernized instructions. + 2009-01-12 Werner Koch <[email protected]> * faq.raw: Fix bug reorting address. diff --git a/doc/gpg-agent.texi b/doc/gpg-agent.texi index 2900154a9..af30a2390 100644 --- a/doc/gpg-agent.texi +++ b/doc/gpg-agent.texi @@ -61,23 +61,36 @@ to run multiple instance of the @command{gpg-agent}, so you should make sure that only one is running: @command{gpg-agent} uses an environment variable to inform clients about the communication parameters. You can write the content of this environment variable to a file so that you can -test for a running agent. This short script may do the job: +test for a running agent. Here is an example using Bourne shell synax: @smallexample -if test -f $HOME/.gpg-agent-info && \ - kill -0 $(cut -d: -f 2 $HOME/.gpg-agent-info) 2>/dev/null; then - GPG_AGENT_INFO=$(cat $HOME/.gpg-agent-info) - export GPG_AGENT_INFO -else - eval $(gpg-agent --daemon) - echo $GPG_AGENT_INFO >$HOME/.gpg-agent-info +gpg-agent --daemon --enable-ssh-support \ + --write-env-file "$@{HOME@}/.gpg-agent-info" +@end smallexample + +This code should only be run once per user session to initially fire up +the agent. In the example the optional support for the included Secure +Shell agent is enabled and the information about the agent is written to +a file in the HOME directory. Note that by running gpg-agent without +arguments you may test whether an agent is already running; however such +a test may lead to a race condition, thus it is not suggested. + +@noindent +The second script needs to be run for each interactive session: + +@smallexample +if [ -f "$@{HOME@}/.gpg-agent-info" ]; then + . "$@{HOME@}/.gpg-agent-info" + export GPG_AGENT_INFO + export SSH_AUTH_SOCK + export SSH_AGENT_PID fi @end smallexample @noindent -Note that the new option @option{--write-env-file} may be used instead. +It reads the data out of the file and exports the variables. If you +don't use Secure Shell, you don't need the last two export statements. - @noindent You should always add the following lines to your @code{.bashrc} or whatever initialization file is used for all shell invocations: |