[Bug 7406] New: syslogd: fix re-opening log files after deleting or moving them

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=7406

           Summary: syslogd: fix re-opening log files after deleting or
                    moving them
           Product: Busybox
           Version: 1.22.x
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: P5
         Component: Other
        AssignedTo: unassigned at busybox.net
        ReportedBy: develop at kristov.de
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0


Created attachment 5636
  --> https://bugs.busybox.net/attachment.cgi?id=5636
fix re-opening log files after deleting or moving them

With the patch attached, syslogd correctly re-opens log files. The current code
uses one global last-logged timestamp for all log targets. If a message is to
be logged to multiple log files, the global last-logged timestamp is compared
to the current system time. If there is a difference of at least one second,
the log file is re-opened and the timestamp is updated. However, because of the
timestamp update, all subsequent log files are _not_ re-opened even if they
need to.

The patch attached uses a per-log-target timestamp to overcome this bug.

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