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131 lines
2.8 KiB
C
131 lines
2.8 KiB
C
/* keybox-init.c - Initalization of the library
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* Copyright (C) 2001 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 <http://www.gnu.org/licenses/>.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#include <assert.h>
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#include "../jnlib/mischelp.h"
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#include "keybox-defs.h"
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static KB_NAME kb_names;
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/*
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Register a filename for plain keybox files. Returns a pointer to be
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used to create a handles etc or NULL to indicate that it has already
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been registered */
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void *
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keybox_register_file (const char *fname, int secret)
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{
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KB_NAME kr;
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for (kr=kb_names; kr; kr = kr->next)
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{
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if (same_file_p (kr->fname, fname) )
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return NULL; /* Already registered. */
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}
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kr = xtrymalloc (sizeof *kr + strlen (fname));
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if (!kr)
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return NULL;
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strcpy (kr->fname, fname);
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kr->secret = !!secret;
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/* kr->lockhd = NULL;*/
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kr->is_locked = 0;
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kr->did_full_scan = 0;
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/* keep a list of all issued pointers */
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kr->next = kb_names;
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kb_names = kr;
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/* create the offset table the first time a function here is used */
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/* if (!kb_offtbl) */
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/* kb_offtbl = new_offset_hash_table (); */
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return kr;
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}
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int
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keybox_is_writable (void *token)
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{
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KB_NAME r = token;
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return r? !access (r->fname, W_OK) : 0;
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}
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/* Create a new handle for the resource associated with TOKEN. SECRET
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is just a cross-check.
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The returned handle must be released using keybox_release (). */
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KEYBOX_HANDLE
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keybox_new (void *token, int secret)
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{
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KEYBOX_HANDLE hd;
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KB_NAME resource = token;
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assert (resource && !resource->secret == !secret);
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hd = xtrycalloc (1, sizeof *hd);
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if (hd)
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{
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hd->kb = resource;
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hd->secret = !!secret;
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}
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return hd;
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}
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void
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keybox_release (KEYBOX_HANDLE hd)
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{
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if (!hd)
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return;
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_keybox_release_blob (hd->found.blob);
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if (hd->fp)
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{
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fclose (hd->fp);
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hd->fp = NULL;
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}
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xfree (hd->word_match.name);
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xfree (hd->word_match.pattern);
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xfree (hd);
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}
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const char *
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keybox_get_resource_name (KEYBOX_HANDLE hd)
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{
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if (!hd || !hd->kb)
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return NULL;
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return hd->kb->fname;
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}
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int
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keybox_set_ephemeral (KEYBOX_HANDLE hd, int yes)
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{
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if (!hd)
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return gpg_error (GPG_ERR_INV_HANDLE);
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hd->ephemeral = yes;
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return 0;
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}
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