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pgsql: Avoid using readlink() on platforms that don't support it

From: Magnus Hagander <magnus(at)hagander(dot)net>
To: pgsql-committers(at)postgresql(dot)org
Subject: pgsql: Avoid using readlink() on platforms that don't support it
Date: 2011-12-07 11:20:18
Message-ID: E1RYFXu-0003WS-QM@gemulon.postgresql.org (view raw or flat)
Thread:
Lists: pgsql-committers
Avoid using readlink() on platforms that don't support it

We don't have any such platforms now, but might in the future.

Also, detect cases when a tablespace symlink points to a path that
is longer than we can handle, and give a warning.

Branch
------
REL9_1_STABLE

Details
-------
http://git.postgresql.org/pg/commitdiff/9c32da5caa2efc9bdc7f04ae26488211ff219e8a

Modified Files
--------------
src/backend/replication/basebackup.c |   25 ++++++++++++++++++++++---
1 files changed, 22 insertions(+), 3 deletions(-)

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Subject: pgsql: Fix corner cases in readlink() usage.
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