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While I was running some tests in psql, trying to figure out how to change

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the query string to handle any length, I discovered that under certain
conditions, psql will core dump when handling long strings.  Thus, the
patch.  It was caused by a buffer overrun, probably not noticeable in a lot
of cases, but pretty noticeable in mine.

Problem was caused by the fact that the length check is only performed after
the check for a ; to get the end of the query and execute.

Cheers...

MikeA
This commit is contained in:
Bruce Momjian 1999-07-20 17:20:43 +00:00
parent a2bb39c738
commit f96babac12
1 changed files with 3 additions and 2 deletions
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5
src/bin/psql/psql.c
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@ -7,7 +7,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/bin/psql/Attic/psql.c,v 1.187 1999/07/19 21:06:19 momjian Exp $
* $Header: /cvsroot/pgsql/src/bin/psql/Attic/psql.c,v 1.188 1999/07/20 17:20:43 momjian Exp $
*
*-------------------------------------------------------------------------
*/
@ -2705,7 +2705,8 @@ MainLoop(PsqlSettings *pset, char *query, FILE *source)
char hold_char = line[i + thislen];
line[i + thislen] = '\0';
if (query_start[0] != '\0')
if ((query_start[0] != '\0') &&
(strlen(query) + strlen(query_start) <= MAX_QUERY_BUFFER))
{
if (query[0] != '\0')
{