Re: FreeTDS port to VMS V9.x on x86?

On 2025-06-05, Arne Vajhøj <arne@vajhoej.dk> wrote:

On 6/5/2025 10:55 AM, Arne Vajhøj wrote:

Updates fail with:
 
TDS DBLIB error: Unable to allocate sufficient memory
TDS OS error: error 0
TDS error in dbcmd
 
But I suspect that is a bug in my code.

>
Mysterious.
>
stat = dbfcmd(con, "INSERT INTO t1 VALUES(%d, '%s')", f1, f2esc);
>
fails.
>
char buf[1000];
sprintf(buf, "INSERT INTO t1 VALUES(%d, '%s')", f1, f2esc);
stat = dbcmd(con, buf);
>
works.
>
And DBLIB.C contains:
>
RETCODE
dbfcmd(DBPROCESS * dbproc, const char *fmt, ...)
{
     va_list ap;
     char *s;
     int len;
     RETCODE ret;
>
     tdsdump_log(TDS_DBG_FUNC, "dbfcmd(%p, %s, ...)\n", dbproc, fmt);
     CHECK_CONN(FAIL);
     CHECK_NULP(fmt, "dbfcmd", 2, FAIL);
>
     va_start(ap, fmt);
     len = vasprintf(&s, fmt, ap);
     va_end(ap);
>
     if (len < 0) {
         dbperror(dbproc, SYBEMEM, errno);
         return FAIL;
     }
>
     ret = dbcmd(dbproc, s);
     free(s);
>
     return ret;
}
>
????
>

Does this _exact_ code work on Alpha ?

If yes, try building your test code with compiler optimisation disabled.

If that doesn't work, try building the library itself with compiler
optimisation disabled.

32-bit or 64-bit build ?

Any compiler build warnings either in the library or your test code ?
(Try setting warnings to fatal to abort the build if you get a lot of
output during building).

I am trying to eliminate the possibility you may have stumbled across
a compiler bug.

Simon.

--
Simon Clubley, clubley@remove_me.eisner.decus.org-Earth.UFP
Walking destinations on a map are further away than they appear.