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Most clients can be written quite simply with shell or Perl.
Shell-script based clients
~~~~~~~~~~~~~~~~~~~~~~~~~~
Shell-script based debconf clients should source the confmodule support
library, /usr/share/debconf/confmodule by default.
Use of the shell confmodule library is described in the debconf
documentation.
Perl based clients
~~~~~~~~~~~~~~~~~~
/* to be added, need to modify ConfModule.pm */
C based clients
~~~~~~~~~~~~~~~
libdebconf has some simple support functions for C based clients;
the API is pretty simple:
#include <debconfclient.h>
struct debconfclient *client = debconfclient_new();
client->command(client, "INPUT", "low", "foo/bar", NULL);
myvar = client->value;
(or myvar = client->ret(client); )
/* ... */
debconfclient_delete(client);
the command method takes a NULL-terminated list of arguments to pass
to the confmodule. The result is stored in client->value;
Filedescriptors
~~~~~~~~~~~~~~~
cdebconf opens some aditional fds for the confmodule. Actually they are:
- 4: original stdin, defined as DEBCONF_OLD_STDIN_FD
- 5: original stdout, defined as DEBCONF_OLD_STDOUT_FD
Packages which want to call a console application may use them.
$Id: confmodule.txt 26101 2005-03-06 22:07:18Z joeyh $
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