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ec81c437e7
* g10/expand-group.c (expand_group): Add arg prepend_input.
* g10/pkclist.c (build_pk_list): Adjust for it.
* g10/getkey.c (key_byname): Keep the expanded names in the CTX and
don't premature free them.
(get_pubkey_byname): Append the namelist to the extra_list.
--
The original patch didn't kept the expanded list in the context and
also would duplicate names which are not group names. The latter does
not really harm but the former lead to a use after free. Original
patch was applied just a few weeks ago.
Fixes-commit: e825aea2ba
Signed-off-by: Werner Koch <wk@gnupg.org>
89 lines
2.5 KiB
C
89 lines
2.5 KiB
C
/* expand-group.c - expand GPG group definitions
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* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
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* 2008, 2009, 2010 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* GnuPG 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
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* GNU 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 this program; if not, see <https://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include "gpg.h"
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#include "options.h"
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#include "keydb.h"
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int
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expand_id (const char *id, strlist_t *into, unsigned int flags)
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{
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struct groupitem *groups;
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int count=0;
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for (groups = opt.grouplist; groups; groups=groups->next)
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{
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/* need strcasecmp() here, as this should be localized */
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if (strcasecmp (groups->name,id) == 0)
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{
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strlist_t each,sl;
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/* This maintains the current utf8-ness */
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for (each = groups->values; each; each=each->next)
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{
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sl = add_to_strlist (into, each->d);
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sl->flags = flags;
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count++;
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}
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break;
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}
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}
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return count;
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}
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/* For simplicity, and to avoid potential loops, we only expand once -
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* you can't make an alias that points to an alias. If PREPEND_INPUT
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* is true each item from INPUT is prepended to the new list; if it is
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* false the original item from INPUT is only added if no group
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* existed for it. */
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strlist_t
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expand_group (strlist_t input, int prepend_input)
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{
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strlist_t output = NULL;
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strlist_t sl, rover;
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for (rover = input; rover; rover = rover->next)
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{
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if ((rover->flags & PK_LIST_FROM_FILE))
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continue;
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if (!expand_id (rover->d, &output, rover->flags))
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{
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/* Didn't find any groups, so use the existing string unless
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* we will anyway add it due to the prepend flag. */
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if (!prepend_input)
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{
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sl = add_to_strlist (&output, rover->d);
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sl->flags = rover->flags;
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}
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}
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if (prepend_input)
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{
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sl = add_to_strlist (&output, rover->d);
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sl->flags = rover->flags;
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}
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}
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return output;
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}
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