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/* wptGPGParser.cpp - GPG config file parser |
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* Copyright (C) 2002, 2003, 2004, 2006 Timo Schulz |
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* |
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* This file is part of WinPT. |
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* |
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* WinPT is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* WinPT is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with WinPT; if not, write to the Free Software Foundation, |
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* Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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|
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#ifdef HAVE_CONFIG_H |
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#include <config.h> |
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#endif |
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|
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#include <stdio.h> |
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#include <string.h> |
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#include <windows.h> |
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|
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#include "wptTypes.h" |
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#include "wptW32API.h" |
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#include "wptGPG.h" |
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#include "wptErrors.h" |
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|
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static void |
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add_option (gpg_option_t *list, gpg_option_t n) |
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{ |
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gpg_option_t t; |
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|
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if (!*list) |
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*list = n; |
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else { |
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for (t = *list; t->next; t = t->next) |
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; |
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t->next = n; |
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} |
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} |
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|
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static gpg_option_t |
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new_option (void) |
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{ |
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gpg_option_t e; |
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|
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e = new gpg_option_s; |
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if (!e) |
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BUG (0); |
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memset (e, 0, sizeof (e)); |
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return e; |
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} |
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|
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|
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static void |
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add_opaque_option (gpg_optfile_t opt, const char *line, int used) |
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{ |
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gpg_option_t e; |
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|
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e = new_option (); |
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e->used = used > 0? 1 : 0; |
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e->name = m_strdup (line); |
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e->type = ENTRY_OPAQUE; |
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add_option (&opt->list, e); |
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} |
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|
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|
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static void |
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add_single_option (gpg_optfile_t opt, const char *name, int used) |
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{ |
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gpg_option_t e; |
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|
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e = new_option (); |
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e->used = used > 0? 1 : 0; |
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e->name = m_strdup (name); |
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e->type = ENTRY_SINGLE; |
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add_option (&opt->list, e); |
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} |
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|
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|
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static int |
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add_group_option (gpg_optfile_t opt, const char *name, int used) |
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{ |
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gpg_option_t e; |
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|
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e = new_option (); |
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e->used = used > 0? 1 : 0; |
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e->name = m_strdup (name); |
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e->type = ENTRY_GROUP; |
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add_option (&opt->list, e); |
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return 0; |
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} |
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|
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|
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static size_t |
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count_whitespaces (char *line) |
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{ |
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size_t i; |
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size_t ncount = 0; |
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|
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if (!strchr (line, ' ')) |
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return 0; |
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for( i = 0; i < strlen (line); i++) { |
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if (line[i] == ' ') |
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ncount++; |
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} |
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return ncount; |
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} |
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|
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|
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static int |
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add_multi_option (gpg_optfile_t opt, char *line, int used) |
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{ |
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gpg_option_t e; |
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char *p; |
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int state = 0; |
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|
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e = new_option (); |
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if (count_whitespaces (line) == 1) { |
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while ((p = strsep (&line, " ")) && state != 2) { |
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switch (state) { |
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case 0: e->name = m_strdup (p); break; |
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case 1: e->val = m_strdup (p); break; |
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} |
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state++; |
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} |
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} |
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else { |
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p = strchr (line, ' '); |
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if (!p) |
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return -1; |
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state = p - line; |
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e->name = new char[state + 1]; |
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if (!e->name) |
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BUG (NULL); |
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memcpy (e->name, line, state); |
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e->name[state] = '\0'; |
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strncpy (e->name, line, state); |
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e->val = m_strdup (line + state + 1); |
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} |
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e->used = used; |
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e->type = ENTRY_MULTI; |
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add_option (&opt->list, e); |
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|
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return 0; |
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} |
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|
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|
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static gpg_group_t |
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new_group (gpg_group_t *grp, const char *name) |
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{ |
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gpg_group_t g, t; |
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|
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g = new gpg_group_s; |
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if (!g) |
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BUG (NULL); |
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memset (g, 0, sizeof *g); |
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g->used = 1; |
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g->name = m_strdup (name); |
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if (!*grp) |
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*grp = g; |
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else { |
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for (t = *grp; t->next; t = t->next) |
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; |
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t->next = g; |
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} |
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return g; |
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} |
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|
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|
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static const char* |
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group_from_cfgfile (gpg_optfile_t opt, const char *line) |
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{ |
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char *p, *buf, *buf2, *name = NULL; |
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gpg_group_t g; |
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gpg_member_t m = NULL, t; |
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|
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p = strchr (line, '='); |
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if (!p || strncmp (line, "group ", 6)) |
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return NULL; |
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buf = m_strdup (line + (p - line + 1)); |
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line += 6; |
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p = strchr (line, '='); |
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if (p) { |
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size_t pos = p - line; |
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name = new char[pos + 1]; |
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if (!name) |
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BUG( NULL ); |
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memset (name, 0, pos+1); |
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strncpy (name, line, pos); |
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} |
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g = new_group (&opt->grp, name); |
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buf2 = buf; |
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while ((p = strsep (&buf2, " ")) && *p) { |
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m = new gpg_member_s; |
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if (!m) |
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BUG (0); |
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memset (m, 0, sizeof *m); |
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m->used = 1; |
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m->name = m_strdup (p); |
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if (!g->list) |
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g->list = m; |
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else { |
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for (t=g->list; t->next; t = t->next) |
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; |
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t->next = m; |
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} |
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} |
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free_if_alloc (buf); |
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if (!m) |
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return NULL; |
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return g->name; |
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} |
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|
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|
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void |
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release_group (gpg_group_t grp) |
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{ |
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gpg_member_t m, m2; |
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|
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m = grp->list; |
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while (m) { |
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m2 = m->next; |
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free_if_alloc (m->name); |
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free_if_alloc (m); |
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m = m2; |
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} |
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} |
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|
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|
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void |
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release_option (gpg_option_t opt) |
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{ |
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if (!opt) |
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return; |
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free_if_alloc (opt->name); |
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free_if_alloc (opt->val); |
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free_if_alloc (opt ); |
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} |
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|
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|
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void |
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release_gpg_options (gpg_optfile_t opt) |
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{ |
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gpg_option_t e, e2; |
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gpg_group_t g, g2; |
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|
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e = opt->list; |
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while (e) { |
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e2 = e->next; |
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release_option (e); |
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e = e2; |
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} |
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g = opt->grp; |
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while (g) { |
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g2 = g->next; |
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release_group (g); |
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g = g2; |
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} |
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free_if_alloc (opt); |
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} |
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|
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|
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int |
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commit_gpg_options (const char *file, gpg_optfile_t opt) |
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{ |
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FILE *inp; |
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gpg_option_t e; |
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gpg_group_t g; |
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gpg_member_t m; |
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|
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inp = fopen (file, "w+b"); |
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if (!inp) |
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return WPTERR_FILE_OPEN; |
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for (e = opt->list; e; e = e->next) { |
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if (!e->used) |
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continue; |
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switch (e->type) { |
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case ENTRY_OPAQUE: |
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fprintf (inp, "%s", e->name); |
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break; |
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|
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case ENTRY_MULTI: |
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fprintf (inp, "%s %s\r\n", e->name, e->val); |
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break; |
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|
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case ENTRY_SINGLE: |
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fprintf (inp, "%s\r\n", e->name); |
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break; |
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|
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case ENTRY_GROUP: |
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g = find_group (opt, e->name); |
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if (g && g->used) { |
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fprintf (inp, "group %s=", g->name); |
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for (m = g->list; m; m = m->next) { |
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if (m->used) |
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fprintf (inp, "%s ", m->name); |
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} |
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fprintf (inp, "\r\n"); |
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} |
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break; |
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} |
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} |
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fclose (inp); |
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return 0; |
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} |
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|
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|
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int |
316 |
parse_gpg_options (const char *file, gpg_optfile_t *r_opt ) |
317 |
{ |
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FILE *inp; |
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char buf[1024], *p; |
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gpg_optfile_t opt = NULL; |
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|
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inp = fopen( file, "rb"); |
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if( inp == NULL ) { |
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inp = fopen( file, "wb" ); |
325 |
if( inp == NULL ) |
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return -1; |
327 |
} |
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opt = new gpg_optfile_s; |
329 |
if( !opt ) |
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BUG( NULL ); |
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memset( opt, 0, sizeof *opt ); |
332 |
while( !feof( inp ) ) { |
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p = fgets( buf, sizeof buf -1, inp ); |
334 |
if( !p ) |
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break; |
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if( *p == '#' || *p == '\r' || *p == '\n' || *p == '\t' ) { |
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add_opaque_option( opt, p, 1 ); |
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continue; |
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} |
340 |
if( strstr( p, "\r\n" ) ) |
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p[strlen( p ) - 2] = '\0'; |
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else if( strstr( p, "\n" ) ) |
343 |
p[strlen( p ) - 1] = '\0'; |
344 |
if( !strchr( p, ' ' ) ) |
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add_single_option( opt, p, 1 ); |
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else if( !strncmp( p, "group", 5 ) ) { |
347 |
const char *s = group_from_cfgfile (opt, p); |
348 |
if (s) |
349 |
add_group_option (opt, s, 1); |
350 |
} |
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else |
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add_multi_option (opt, p, 1); |
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} |
354 |
fclose (inp); |
355 |
if (r_opt) |
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*r_opt = opt; |
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return 0; |
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} |
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|
360 |
|
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gpg_option_t |
362 |
find_option (gpg_optfile_t opt, const char *str) |
363 |
{ |
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gpg_option_t e; |
365 |
|
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for (e = opt->list; e; e = e->next) { |
367 |
if (e->type == ENTRY_OPAQUE) |
368 |
continue; |
369 |
if (!stricmp (e->name, str)) |
370 |
break; |
371 |
} |
372 |
|
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return e; |
374 |
} |
375 |
|
376 |
|
377 |
gpg_group_t |
378 |
find_group (gpg_optfile_t opt, const char *str) |
379 |
{ |
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gpg_group_t g; |
381 |
|
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for (g = opt->grp; g; g = g->next) { |
383 |
if (!stricmp( g->name, str)) |
384 |
break; |
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} |
386 |
|
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return g; |
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} |
389 |
|
390 |
|
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gpg_member_t |
392 |
find_member (gpg_optfile_t opt, const char *grp, const char *str) |
393 |
{ |
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gpg_group_t g = find_group (opt, grp); |
395 |
gpg_member_t m; |
396 |
|
397 |
if (!g) |
398 |
return NULL; |
399 |
|
400 |
for (m = g->list; m; m = m->next) { |
401 |
if (!stricmp (m->name, str)) |
402 |
return m; |
403 |
} |
404 |
return NULL; |
405 |
} |
406 |
|
407 |
|
408 |
int |
409 |
delete_group (gpg_optfile_t opt, const char *str) |
410 |
{ |
411 |
gpg_group_t g = find_group (opt, str); |
412 |
|
413 |
if (g) |
414 |
g->used = 0; |
415 |
return g? 0 : -1; |
416 |
} |
417 |
|
418 |
|
419 |
int |
420 |
delete_member (gpg_optfile_t opt, const char *grp, const char *str) |
421 |
{ |
422 |
gpg_member_t m = find_member (opt, grp, str); |
423 |
|
424 |
if (m) |
425 |
m->used = 0; |
426 |
return m? 0 : -1; |
427 |
} |
428 |
|
429 |
|
430 |
int |
431 |
delete_option (gpg_optfile_t opt, const char * str) |
432 |
{ |
433 |
gpg_option_t e = find_option (opt, str); |
434 |
|
435 |
if (e) |
436 |
e->used = 0; |
437 |
return e? 0 : -1; |
438 |
} |
439 |
|
440 |
|
441 |
int |
442 |
add_entry (gpg_optfile_t opt, int type, const char *name, const char *val) |
443 |
{ |
444 |
gpg_option_t e; |
445 |
|
446 |
e = new_option (); |
447 |
e->used = 1; |
448 |
e->type = type; |
449 |
e->name = m_strdup (name); |
450 |
e->val = val? m_strdup (val) : NULL; |
451 |
add_option (&opt->list, e); |
452 |
return 0; |
453 |
} |
454 |
|
455 |
|
456 |
int |
457 |
modify_entry (gpg_optfile_t opt, int type, const char *name, const char *val) |
458 |
{ |
459 |
gpg_option_t e; |
460 |
int rc = 0; |
461 |
|
462 |
e = find_option (opt, name); |
463 |
if (!e) |
464 |
rc = add_entry (opt, type, name, val); |
465 |
else if (type != ENTRY_SINGLE) { |
466 |
free_if_alloc (e->val); |
467 |
e->val = m_strdup (val); |
468 |
} |
469 |
|
470 |
return rc; |
471 |
} |
472 |
|
473 |
|
474 |
int |
475 |
add_member (gpg_optfile_t opt, const char *grp, const char *str) |
476 |
{ |
477 |
gpg_group_t g = find_group (opt, grp); |
478 |
gpg_member_t m, t; |
479 |
|
480 |
if (!g) |
481 |
return -1; |
482 |
|
483 |
m = new gpg_member_s; |
484 |
if (!m) |
485 |
BUG (NULL); |
486 |
memset (m, 0, sizeof *m); |
487 |
m->used = 1; |
488 |
m->name = m_strdup (str); |
489 |
if( !g->list ) |
490 |
g->list = m; |
491 |
else { |
492 |
for( t = g->list; t->next; t = t->next ) |
493 |
; |
494 |
t->next = m; |
495 |
} |
496 |
return 0; |
497 |
} |
498 |
|
499 |
|
500 |
int |
501 |
add_group (gpg_optfile_t opt, const char *str) |
502 |
{ |
503 |
gpg_group_t g, t; |
504 |
|
505 |
g = new gpg_group_s; |
506 |
if (!g) |
507 |
BUG (NULL); |
508 |
memset (g, 0, sizeof *g); |
509 |
g->used = 1; |
510 |
g->name = m_strdup (str); |
511 |
|
512 |
if (!opt->grp) |
513 |
opt->grp = g; |
514 |
else { |
515 |
for (t = opt->grp; t->next; t = t->next) |
516 |
; |
517 |
t->next = g; |
518 |
} |
519 |
add_entry (opt, ENTRY_GROUP, str, NULL); |
520 |
return 0; |
521 |
} |
522 |
|
523 |
|
524 |
#if 0 |
525 |
void |
526 |
walk_group( const char *name, gpg_member_t mbr ) |
527 |
{ |
528 |
gpg_member_t m; |
529 |
|
530 |
printf( "name=%s\n", name ); |
531 |
for( m = mbr; m; m = m->next ) |
532 |
printf( "%s\n", m->name ); |
533 |
} |
534 |
|
535 |
|
536 |
int |
537 |
main( int argc, char **argv ) |
538 |
{ |
539 |
int rc; |
540 |
gpg_optfile_t opt; |
541 |
gpg_group_t g; |
542 |
gpg_option_t e; |
543 |
|
544 |
rc = parse_gpg_options( "c:\\gnupg\\gpg.conf", &opt ); |
545 |
if( rc ) |
546 |
printf( "parse_option: error\n" ); |
547 |
else { |
548 |
#if 0 |
549 |
/*delete_option( opt, "encrypt-to" );*/ |
550 |
delete_member( opt, "bar", "richard" ); |
551 |
add_member( opt, "bar", "leo" ); |
552 |
add_group( opt, "foobar" ); |
553 |
delete_group( opt, "foobar" ); |
554 |
add_entry( opt, ENTRY_SINGLE, "use-agent", NULL ); |
555 |
#endif |
556 |
for( e = opt->list; e; e = e->next ) { |
557 |
if( e->type != 1 ) |
558 |
printf( "%d: %s %s\n", e->used, e->name, e->val ); |
559 |
} |
560 |
/*commit_gpg_options( "c:\\gnupg\\gpg2.conf", opt );*/ |
561 |
for( g = opt->grp; g; g = g->next ) |
562 |
walk_group( g->name, g->list ); |
563 |
release_option( opt ); |
564 |
} |
565 |
|
566 |
return 0; |
567 |
} |
568 |
#endif |