Re: [BUGS] Bug #756: suggestion: file with password instead - Mailing list pgsql-patches

From Bruce Momjian
Subject Re: [BUGS] Bug #756: suggestion: file with password instead
Date
Msg-id 200209060046.g860k3L28719@candle.pha.pa.us
Whole thread Raw
In response to Re: [BUGS] Bug #756: suggestion: file with password instead of  (Tom Lane <tgl@sss.pgh.pa.us>)
List pgsql-patches
OK, I will make those changes.  Thanks.

---------------------------------------------------------------------------

Tom Lane wrote:
> Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > + #define PSQLHISTORY    "/.psql_history"
> > ...
> > !             char       *psql_history = (char *) malloc(strlen(home) +
> > !                                                 strlen(PSQLHISTORY) + 1);
>
> > !                 sprintf(psql_history, "%s" PSQLHISTORY, home);
>
> This seems like a really ugly coding practice.  The sprintf is hard to
> read and absolutely dependent on the assumption that PSQLHISTORY
> contains no %.  I'd suggest this pattern:
>
> #define PSQLHISTORY    ".psql_history"
> > ...
> > !             char       *psql_history = (char *) malloc(strlen(home) +
> > !                                                 strlen(PSQLHISTORY) + 2);
>
> > !                 sprintf(psql_history, "%s/%s", home, PSQLHISTORY);
>
> as being easier to read and safer.
>
> In PasswordFromFile():
>
> > +     /* Look for it in the home dir */
> > +     home = getenv("HOME");
> > +     if (home)
> > +     {
> > +         pgpassfile = malloc(strlen(home) + strlen(PGPASSFILE) + 1);
> > +         if (!pgpassfile)
> > +         {
> > +             fprintf(stderr, gettext("%s: out of memory\n"), pset.progname);
> > +             exit(EXIT_FAILURE);
> > +         }
> > +     }
> > +     else
> > +         return NULL;
>
> libpq has no business calling exit().  How about just "return NULL" like
> all the other failure cases in that routine?
>
>             regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
>

--
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  pgman@candle.pha.pa.us               |  (610) 359-1001
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