Re: ERROR: index row size - Mailing list pgsql-hackers

From Jeremy Drake
Subject Re: ERROR: index row size
Date
Msg-id Pine.BSO.4.64.0706032014370.8873@resin.csoft.net
Whole thread Raw
In response to ERROR: index row size  ("Rodrigo Sakai" <rodrigo.sakai@poli.usp.br>)
Responses Re: ERROR: index row size  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: ERROR: index row size  ("Rodrigo Sakai" <rodrigo.sakai@poli.usp.br>)
List pgsql-hackers
Just glancing at this, a couple things stand out to me:

On Mon, 4 Jun 2007, Rodrigo Sakai wrote:

> Datum
> periodo_in(PG_FUNCTION_ARGS)
> {
>     char    *str = PG_GETARG_CSTRING(0);
>     char    tvi_char[MAXDATEFIELDS];
>     char    tvf_char[MAXDATEFIELDS];
>
>     tvi_char = (char *) palloc(strlen(MAXDATEFIELDS));

What are you doing here?  This is completely broken.  I think you meant to
say:

char *tvi_char;

tvi_char = palloc(MAXDATEFIELDS);

Or:

char tvi_char[MAXDATEFIELDS];

and no palloc.

>     tvf_char = (char *) palloc(strlen(MAXDATEFIELDS));

Same as above.

>
>     Periodo     *result;
>
>     if (sscanf(str, " ( %s , %s )", tvi_char, tvf_char) != 2)

This is asking for trouble if arbitrary input can be fed to this.

>         ereport(ERROR,
>             (errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
>             errmsg("invalid input syntax for periodo: \"%s\"", str)));
>
>     result->tvi = StringToDateADT(tvi_char);
>     result->tvi = StringToDateADT(tvf_char);
>
>     result = (Periodo *) palloc(sizeof(Periodo));
>
>     if (result->tvi > result->tvf)
>         ereport(ERROR,
>                 (errcode(ERRCODE_INVALID_TEXT_REPRESENTATION),
>                 errmsg("Initial date (TVi) must be smaller than final date
> (TVf)")));
>
>     PG_RETURN_POINTER(result);
> }
>
>   Please help me!
>
>   Thanks in advance!

Hope this helps.

-- 
My love, he's mad, and my love, he's fleet,And a wild young wood-thing bore him!
The ways are fair to his roaming feet,And the skies are sunlit for him.
As sharply sweet to my heart he seemsAs the fragrance of acacia.
My own dear love, he is all my dreams --And I wish he were in Asia.    -- Dorothy Parker


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