From: Gunnar Beutner <gunnar@beutner.name>
Date: Fri, 29 Jul 2011 08:17:46 +0000 (+0200)
Subject: Use /dev/null for stdout/stderr in libzfs_run_process().
X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=commitdiff_plain;h=3132cb397ad1b60cac548b35ad8bbd4c7183fde4;hp=3132cb397ad1b60cac548b35ad8bbd4c7183fde4;p=zfs.git

Use /dev/null for stdout/stderr in libzfs_run_process().

Simply closing the stdout and/or stderr file descriptors for
the child process can have bad side effects if for example
the child writes to stdout/stderr after open()ing a file.
The open() call might have returned the same file descriptor
one would usually expect for stdout/stderr (1 and 2), thereby
causing mis-directed writes.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Issue #190
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