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If a partial header was read, we previously did not return to the
poll loop.  Instead, a read into the data buffer was attempted.  If
that read actually succeeded (that is, a packet arrived between the
two read calls), then the next attempt to read the header resulted
in garbage size/offsets being attempted.

The fix is to simply check for a partial header read and return to the
poll loop immediately if one occurred.
You can merge this Pull Request by running:

  git pull https://github.com/bbockelm/xrootd-1 fix_readv_headers

Or you can view, comment on it, or merge it online at:

  https://github.com/xrootd/xrootd/pull/108

-- Commit Summary --

  * Correctly handle reads of a partial header.  #45

-- File Changes --

    M src/XrdCl/XrdClXRootDMsgHandler.cc (6)

-- Patch Links --

https://github.com/xrootd/xrootd/pull/108.patch
https://github.com/xrootd/xrootd/pull/108.diff

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Reply to this email directly or view it on GitHub:
https://github.com/xrootd/xrootd/pull/108

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