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Commit updated repeat() patch, from Neil Conway

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This commit is contained in:
Bruce Momjian
2002-08-22 05:05:19 +00:00
parent 090884bed3
commit b4f24fed7a
1 changed files with 9 additions and 3 deletions
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12
src/backend/utils/adt/oracle_compat.c
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@ -9,7 +9,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/adt/oracle_compat.c,v 1.40 2002/08/22 04:55:05 momjian Exp $ * $Header: /cvsroot/pgsql/src/backend/utils/adt/oracle_compat.c,v 1.41 2002/08/22 05:05:19 momjian Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -1008,8 +1008,14 @@ repeat(PG_FUNCTION_ARGS)
tlen = (VARHDRSZ + (count * slen)); tlen = (VARHDRSZ + (count * slen));
/* Check for integer overflow */ /* Check for integer overflow */
if (slen != 0 && count != 0 && tlen / slen != count) if (slen != 0 && count != 0)
elog(ERROR, "Requested buffer is too large."); {
int check = count * slen;
int check2 = check + VARHDRSZ;
if ((check / slen) != count || check2 <= check)
elog(ERROR, "Requested buffer is too large.");
}
result = (text *) palloc(tlen); result = (text *) palloc(tlen);