In CUPS 1.7 httpConnect() and httpConnectEncrypt() were deprecated and
replaced with httpConnect2(). This checks if httpConnect2() is available
and if so, replaces the uses of the deprecated functions.
In the CUPS source code, httpConnect() and httpConnectEncrypt() are now
wrappers around httpConnect2(), so we make sure to use the same
arguments as in the CUPS source code so the two code paths are sure to
be identical:
2c030c7a06/cups/http.c (L412)2c030c7a06/cups/http.c (L477)
Currently gnome-control-center could crash whenever a connection
test is interrupted by the disposal of the Printers panel.
Searching in the g-c-c shell for any query that could match the
Printers panel would instantiate the CcPrintersPanel class. Since
we perform a connection test to the printing server as soon as this
object is created, a fast disposal of the panel (by choosing another
search result) would cause the whole application to crash.
https://bugzilla.gnome.org/show_bug.cgi?id=792753
PpCups object represents local CUPS server. It contains
asynchronous method for getting printers installed on
the server. It is an asynchronous version of cupsGetDests().
(#683229)
