[Bug 7898] New: ps doesn't handle SIGPIPE correctly

bugzilla at busybox.net bugzilla at busybox.net
Fri Feb 27 15:02:51 UTC 2015


           Summary: ps doesn't handle SIGPIPE correctly
           Product: Busybox
           Version: unspecified
          Platform: All
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: P5
         Component: Other
        AssignedTo: unassigned at busybox.net
        ReportedBy: lexa at cfotr.com
                CC: busybox-cvs at busybox.net
   Estimated Hours: 0.0

Imagine situation when ps will be writing into pipe, when suddenly pipe closed
by other process. 'ps' will receive receive SIGPIPE and crash.

That is easy to reproduce, for example 'ps | head'

I suggest to register signal handler for SIGPIPE in 'ps' and exit gracefully if
SIGPIPE received.

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