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Viewing changes to src/include/utils/rel.h

  • Committer: Package Import Robot
  • Author(s): Martin Pitt
  • Date: 2013-02-05 18:13:52 UTC
  • mfrom: (1.1.10) (10.1.5 oneiric-proposed)
  • Revision ID: package-import@ubuntu.com-20130205181352-3kw4f94ilqklzm7c
Tags: 9.1.8-0ubuntu11.10
https://launchpad.net/bugs/1116336
* New upstream security/bug fix release: (LP: #1116336)
  - Prevent execution of enum_recv from SQL
    The function was misdeclared, allowing a simple SQL command to crash the
    server.  In principle an attacker might be able to use it to examine the
    contents of server memory.  Our thanks to Sumit Soni (via Secunia SVCRP)
    for reporting this issue. (CVE-2013-0255)
  - See HISTORY/changelog.gz for the other bug fixes.

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src/include/utils/rel.h
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        bool            rd_isvalid;             /* relcache entry is valid */
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        char            rd_indexvalid;  /* state of rd_indexlist: 0 = not valid, 1 =
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                                                                 * valid, 2 = temporarily forced */
 
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        bool            rd_islocaltemp; /* rel is a temp rel of this session */
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        /*
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         * rd_createSubid is the ID of the highest subtransaction the rel has
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        ((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP)
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/*
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 * RelationUsesTempNamespace
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 *              True if relation's catalog entries live in a private namespace.
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 */
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#define RelationUsesTempNamespace(relation) \
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        ((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP)
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/*
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 * RELATION_IS_LOCAL
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 *              If a rel is either temp or newly created in the current transaction,
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 *              it can be assumed to be visible only to the current backend.
 
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 *              it can be assumed to be accessible only to the current backend.
 
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 *              This is typically used to decide that we can skip acquiring locks.
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 *
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 * Beware of multiple eval of argument
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 */
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#define RELATION_IS_LOCAL(relation) \
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        ((relation)->rd_backend == MyBackendId || \
 
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        ((relation)->rd_islocaltemp || \
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         (relation)->rd_createSubid != InvalidSubTransactionId)
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/*
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 * Beware of multiple eval of argument
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 */
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#define RELATION_IS_OTHER_TEMP(relation) \
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        ((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP \
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        && (relation)->rd_backend != MyBackendId)
 
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        ((relation)->rd_rel->relpersistence == RELPERSISTENCE_TEMP && \
 
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         !(relation)->rd_islocaltemp)
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/* routines in utils/cache/relcache.c */
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extern void RelationIncrementReferenceCount(Relation rel);