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https://bro-tracker.atlassian.net/browse/BIT-1475?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=22110#comment-22110
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Aaron commented on BIT-1475:
----------------------------
The extra flag appears to help when the script is as short as my example....
But when I try to use my real script, which would take longer than the example,
I again do not see any output (I guess the script runtime was longer than the
pcap duration).
> Exec::Run does not complete
> ---------------------------
>
> Key: BIT-1475
> URL: https://bro-tracker.atlassian.net/browse/BIT-1475
> Project: Bro Issue Tracker
> Issue Type: Problem
> Components: Bro
> Affects Versions: git/master, 2.3
> Environment: Centos 6.6
> Reporter: Aaron
> Labels: hang
> Fix For: 2.5
>
> Attachments: bro.tar.gz
>
>
> I'm having trouble running an external program in the callback function for
> an event when processing a pcap file. It seems to work in bro_init, however,
> which confuses me.
> The working file will print out the output of the "ls" command, whereas the
> not-working file will not print out anything no matter how long I wait.
> Specifically here I want to use the event when bro detects a file in the pcap.
> working.bro (ran as simply "bro working.bro"):
> {code:java}
> @load base/utils/exec
> redef exit_only_after_terminate=T;
> event bro_init()
> {
> local t= "ls /";
> local cmd = Exec::Command($cmd=t);
> when (local res = Exec::run(cmd))
> {
> print "hello";
> print res$stdout;
> }
> }
> {code}
> notworking.bro (ran as bro -r my.pcap notworking.bro:
> {code:java}
> @load base/utils/exec
> @load base/frameworks/files
> @load base/frameworks/notice
> redef exit_only_after_terminate=T;
> event file_new(f: fa_file)
> {
> local t ="ls /";
> local cmd = Exec::Command($cmd=t);
> when (local res = Exec::run(cmd))
> {
> print "hello";
> print res$stdout;
> }
> }
> {code}
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