diff options
Diffstat (limited to 'doc/doc-docbook')
| -rw-r--r-- | doc/doc-docbook/spec.xfpt | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/doc/doc-docbook/spec.xfpt b/doc/doc-docbook/spec.xfpt index c3994a79c..4a9b3b955 100644 --- a/doc/doc-docbook/spec.xfpt +++ b/doc/doc-docbook/spec.xfpt @@ -21712,11 +21712,14 @@ inserted in the argument list at that point &'as a separate argument'&. This avoids any problems with spaces or shell metacharacters, and is of use when a &(pipe)& transport is handling groups of addresses in a batch. -If &(force_command)& is enabled on the transport, Special handling takes place +If &%force_command%& is enabled on the transport, Special handling takes place for an argument that consists of precisely the text &`$address_pipe`&. It -is handled much like &`$pipe_addresses`& above. It is expanded and each +is handled similarly to &$pipe_addresses$& above. It is expanded and each argument is inserted in the argument list at that point -&'as a separate argument'&. +&'as a separate argument'&. The &`$address_pipe`& item does not need to be +the only item in the argument; in fact, if it were then &%force_command%& +should behave as a no-op. Rather, it should be used to adjust the command +run while preserving the argument vector separation. After splitting up into arguments and expansion, the resulting command is run in a subprocess directly from the transport, &'not'& under a shell. The @@ -21883,6 +21886,10 @@ command = /usr/bin/remote_exec myhost -- $address_pipe force_command .endd +Note that &$address_pipe$& is handled specially in &%command%& when +&%force_command%& is set, expanding out to the original argument vector as +separate items, similarly to a Unix shell &`"$@"`& construct. + .option ignore_status pipe boolean false If this option is true, the status returned by the subprocess that is set up to run the command is ignored, and Exim behaves as if zero had been returned. |