/* 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: */