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/* show-group-options.c - Example code to retriev the group option.
Copyright (C) 2008 g10 Code GmbH
This file is part of GPGME.
GPGME is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2.1 of
the License, or (at your option) any later version.
GPGME is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <locale.h>
#include <gpgme.h>
#define fail_if_err(err) \
do \
{ \
if (err) \
{ \
fprintf (stderr, "%s:%d: gpgme_error_t %s\n", \
__FILE__, __LINE__, gpgme_strerror (err)); \
exit (1); \
} \
} \
while (0)
static void
print_one_alias (const char *string)
{
const char *value, *s;
size_t namelen;
int first = 1;
int any = 0;
while (isascii (*string) && isspace (*string))
string++;
value = strchr (string, '=');
if (value)
{
for (s=value-1; s > string ; s--)
if (!isascii (*s) || !isspace (*s))
break;
}
if (!value || s == value )
{
printf ("# error: invalid group definition!\n");
return;
}
value++;
namelen = (s + 1 - string);
printf ("%.*s: ", (int)namelen, string);
for (;;)
{
while (isascii (*value) && isspace (*value))
value++;
if (!*value)
break;
for (s = value; *s && !(isascii (*s) && isspace (*s)); s++)
;
printf ("%s%*s%.*s",
first? "":",\n",
any? (int)namelen+2:0, "",
(int)(s-value), value);
first = 0;
any = 1;
value = s;
}
putchar ('\n');
}
static void
print_gpgconf_string (const char *cname, const char *name)
{
gpg_error_t err;
gpgme_ctx_t ctx;
gpgme_conf_comp_t conf_list, conf;
gpgme_conf_opt_t opt;
gpgme_conf_arg_t value;
err = gpgme_new (&ctx);
fail_if_err (err);
err = gpgme_op_conf_load (ctx, &conf_list);
fail_if_err (err);
for (conf = conf_list; conf; conf = conf->next)
{
if ( !strcmp (conf->name, cname) )
{
for (opt = conf->options; opt; opt = opt->next)
if ( !(opt->flags & GPGME_CONF_GROUP)
&& !strcmp (opt->name, name))
{
for (value = opt->value; value; value = value->next)
{
if (opt->type == GPGME_CONF_ALIAS_LIST)
print_one_alias (value->value.string);
}
break;
}
break;
}
}
gpgme_conf_release (conf_list);
gpgme_release (ctx);
}
int
main (int argc, char **argv )
{
gpgme_check_version (NULL);
setlocale (LC_ALL, "");
gpgme_set_locale (NULL, LC_CTYPE, setlocale (LC_CTYPE, NULL));
#ifndef HAVE_W32_SYSTEM
gpgme_set_locale (NULL, LC_MESSAGES, setlocale (LC_MESSAGES, NULL));
#endif
print_gpgconf_string ("gpg", "group");
return 0;
}
/*
Local Variables:
compile-command: "cc -o show-group-options show-group-options.c -lgpgme"
End:
*/
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