On 2013-06-10 15:48:18 +0200, Vincent Lefevre wrote:
> If I output some messages in the cupsGetNamedDest() function
> of cups/dest.c as shown below:
>
> /*
> * Get the printer's attributes...
> */
>
> fprintf (stderr, "cupsGetNamedDest: %s\n", name ? name : "");
>
> if (!_cupsGetDests(http, op, name, &dest, 0, 0))
> {
> if (op == CUPS_GET_DEFAULT || (name && !set_as_default))
> return (NULL);
>
> if (dest)
> fprintf (stderr, "(1) dest->name: %s\n", dest->name ? dest->name : "");
>
> /*
> * The default printer from environment variables or from a
> * configuration file does not exist. Find out the real default.
> */
>
> if (!_cupsGetDests(http, CUPS_GET_DEFAULT, NULL, &dest, 0, 0))
> return (NULL);
>
> if (dest)
> fprintf (stderr, "(2) dest->name: %s\n", dest->name ? dest->name : "");
> }
>
> "lpr" (with no options) gives me:
>
> cupsGetNamedDest: lipucb-mono-1
> (2) dest->name: lip-multi-1
>
> The problem is here.
If I understand correctly, there may be actually 2 problems:
1. _cupsGetDests(http, op, name, &dest, 0, 0) failed while it
shouldn't.
2. In case of failure due to specified[*] but inexistent printer,
another printer is tried. This is a *wrong* behavior. The correct
behavior is to report an error in such a case. Otherwise, for
instance, if a document is sent to a private printer but something
goes wrong like here, it may end up on a public printer!
[*] by either a lpoptions config file or an environment variable.
The -P lpr option is handled directly in lpr, and cupsGetNamedDest
is not involved if this option is used; that's why everything is
fine with it.
--
Vincent Lefèvre <vinc...@vinc17.net> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)
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