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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2010-03-09 22:34:38 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2010-03-09 22:34:38 +0000 |
| commit | dac7a37dd3c66ba8cf120d997ea1a1c9d6a0d99d (patch) | |
| tree | 69b807c5a04d8751917ca4436ddd9bc965b21c26 /src | |
| parent | ff5ab91299ab2d9054d7571b2f7d931590288bd5 (diff) | |
| download | postgresql-dac7a37dd3c66ba8cf120d997ea1a1c9d6a0d99d.tar.gz postgresql-dac7a37dd3c66ba8cf120d997ea1a1c9d6a0d99d.zip | |
Use SvROK(sv) rather than directly checking SvTYPE(sv) == SVt_RV in plperl.
The latter is considered unwarranted chumminess with the implementation,
and can lead to crashes with recent Perl versions.
Report and fix by Tim Bunce. Back-patch to all versions containing the
questionable coding pattern.
Diffstat (limited to 'src')
| -rw-r--r-- | src/pl/plperl/plperl.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/src/pl/plperl/plperl.c b/src/pl/plperl/plperl.c index 08e88838c8a..bc23d14e1e0 100644 --- a/src/pl/plperl/plperl.c +++ b/src/pl/plperl/plperl.c @@ -1,7 +1,7 @@ /********************************************************************** * plperl.c - perl as a procedural language for PostgreSQL * - * $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.170 2010/03/09 02:48:33 adunstan Exp $ + * $PostgreSQL: pgsql/src/pl/plperl/plperl.c,v 1.171 2010/03/09 22:34:38 tgl Exp $ * **********************************************************************/ @@ -976,7 +976,7 @@ plperl_modify_tuple(HV *hvTD, TriggerData *tdata, HeapTuple otup) ereport(ERROR, (errcode(ERRCODE_UNDEFINED_COLUMN), errmsg("$_TD->{new} does not exist"))); - if (!SvOK(*svp) || SvTYPE(*svp) != SVt_RV || SvTYPE(SvRV(*svp)) != SVt_PVHV) + if (!SvOK(*svp) || !SvROK(*svp) || SvTYPE(SvRV(*svp)) != SVt_PVHV) ereport(ERROR, (errcode(ERRCODE_DATATYPE_MISMATCH), errmsg("$_TD->{new} is not a hash reference"))); @@ -1549,7 +1549,7 @@ plperl_func_handler(PG_FUNCTION_ARGS) * value is an error, except undef which means return an empty set. */ if (SvOK(perlret) && - SvTYPE(perlret) == SVt_RV && + SvROK(perlret) && SvTYPE(SvRV(perlret)) == SVt_PVAV) { int i = 0; @@ -1594,7 +1594,7 @@ plperl_func_handler(PG_FUNCTION_ARGS) AttInMetadata *attinmeta; HeapTuple tup; - if (!SvOK(perlret) || SvTYPE(perlret) != SVt_RV || + if (!SvOK(perlret) || !SvROK(perlret) || SvTYPE(SvRV(perlret)) != SVt_PVHV) { ereport(ERROR, @@ -2220,7 +2220,7 @@ plperl_return_next(SV *sv) errmsg("cannot use return_next in a non-SETOF function"))); if (prodesc->fn_retistuple && - !(SvOK(sv) && SvTYPE(sv) == SVt_RV && SvTYPE(SvRV(sv)) == SVt_PVHV)) + !(SvOK(sv) && SvROK(sv) && SvTYPE(SvRV(sv)) == SVt_PVHV)) ereport(ERROR, (errcode(ERRCODE_DATATYPE_MISMATCH), errmsg("SETOF-composite-returning PL/Perl function " |