[jira] [Created] (DAEMON-437) prunsrv: Better not to redirect stdout/stderr during service installation?

["Rainer Jung (Jira)" <ji...@apache.org>]

Rainer Jung created DAEMON-437:
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             Summary: prunsrv: Better not to redirect stdout/stderr during service installation?
                 Key: DAEMON-437
                 URL: https://issues.apache.org/jira/browse/DAEMON-437
             Project: Commons Daemon
          Issue Type: Bug
          Components: prunsrv
    Affects Versions: 1.2.4
            Reporter: Rainer Jung


{{I observed the following behavior when using prunsrv:}}

{{I call it with //IS//MyService and more arguments to install a Tomcat service. Especially I use the default LocalSystem user as the user who will run the installed service and the arguments:}}

{{    --StdOutput auto ^}}

{{    --StdError auto ^}}

{{to redirect stdout and stderr to the default files.}}

{{To install the service I use a user with Administrator privileges. Running prunsrv to install the service now already creates the redirected stdout and stderr files, but only writable by Administrator.}}

{{When I start the service after this service installation, it can not write to the redirected stdout and stderr files, because it runs as a lower privileged LocalSystem account.}}

{{Before calling redirectStdStreams() in apps/prunsrv/prunsrv.c, there is already a special case if prunsrv was called with //TS (Run Service as console application):}}

1692     /* In debug mode allways use console */

1693     if (lpCmdline->dwCmdIndex != 1) {

1694         gStdwrap.szStdOutFilename = SO_STDOUTPUT;

1695         gStdwrap.szStdErrFilename = SO_STDERROR;

1696     }

{{I wonder, whether it wouldn't be better to not set the redirection file names for other dwCmdIndex values as well. Here's the list of indexes from the source code:}}

{{  76     L"RS",      /* 2 Run Service */}}

{{  77     L"ES",      /* 3 Execute start */}}

{{  78     L"SS",      /* 4 Stop Service */}}

{{  79     L"US",      /* 5 Update Service parameters */}}

{{  80     L"IS",      /* 6 Install Service */}}

{{  81     L"DS",      /* 7 Delete Service */}}

{{  82     L"?",       /* 8 Help */}}

{{  83     L"VS",      /* 9 Version */}}

{{IMHO 5-9 are candidates, maybe 4 and 3 as well. At least for those I would expect that they were executed on the console and stdout/stderr would also be expected there. But I might not be aware of use cases with other needs.}}

{{The normal prunsrv log file does have the same permission problem. But since it contains log info about what action had been done, I am not so sure, whether one can simply write that to stdout instead. But maybe one could use a different default file name line MyService.manage.2021-12-07.log instead of MyService.2021-12-07.log for the above indexes. Not nice, but I don't have a better idea yet. }}



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