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37 lines
1 KiB
Text
37 lines
1 KiB
Text
##! Deletes the ``-w`` tracefile at regular intervals and starts a new file
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##! from scratch.
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module TrimTraceFile;
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export {
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## The interval between times that the output tracefile is rotated.
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const trim_interval = 10 mins &redef;
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## This event can be generated externally to this script if on-demand
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## tracefile rotation is required with the caveat that the script
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## doesn't currently attempt to get back on schedule automatically and
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## the next trim likely won't happen on the
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## :zeek:id:`TrimTraceFile::trim_interval`.
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global go: event(first_trim: bool);
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}
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event TrimTraceFile::go(first_trim: bool)
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{
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if ( zeek_is_terminating() || trace_output_file == "" )
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return;
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if ( ! first_trim )
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{
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local info = rotate_file_by_name(trace_output_file);
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if ( info$old_name != "" )
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system(fmt("/bin/rm %s", safe_shell_quote(info$new_name)));
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}
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schedule trim_interval { TrimTraceFile::go(F) };
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}
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event zeek_init()
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{
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if ( trim_interval > 0 secs )
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schedule trim_interval { TrimTraceFile::go(T) };
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}
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