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mirror of git://git.gnupg.org/gnupg.git synced 2024-12-23 10:29:58 +01:00
gnupg/sm/passphrase.c
NIIBE Yutaka 87d4338ed1
gpg,common,scd,sm: Function prototype fixes for modern compiler.
* common/gettime.c (gnupg_get_time): It has no arguments.
* common/signal.c (gnupg_block_all_signals): Likewise.
(gnupg_unblock_all_signals): Likewise.
* common/utf8conv.c (get_native_charset): Likewise.
* g10/cpr.c (is_status_enabled, cpr_enabled): Likewise.
* g10/getkey.c (getkey_disable_caches): Likewise.
* g10/keygen.c (ask_expiredate): Likewise.
* g10/passphrase.c (have_static_passphrase): Likewise.
(get_last_passphrase): Likewise.
* g10/tdbio.c (tdbio_is_dirty, tdbio_sync): Likewise.
(tdbio_get_dbname, open_db, tdbio_db_matches_options): Likewise.
(tdbio_read_nextcheck): Likewise.
* g10/trustdb.c (how_to_fix_the_trustdb): Likewise.
* scd/scdaemon.c (scd_get_socket_name): Likewise.
* sm/passphrase.c (have_static_passphrase): Likewise.

--

Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>
2022-09-13 16:34:00 +09:00

91 lines
2.4 KiB
C

/* passphrase.c - Get a passphrase
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004,
* 2005, 2006, 2007, 2009, 2011 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* GnuPG 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <https://www.gnu.org/licenses/>.
*/
#include <config.h>
#include <unistd.h>
#include "passphrase.h"
#include "gpgsm.h"
#include "../common/shareddefs.h"
#include "../common/ttyio.h"
static char *fd_passwd = NULL;
int
have_static_passphrase (void)
{
return (!!fd_passwd
&& (opt.batch || opt.pinentry_mode == PINENTRY_MODE_LOOPBACK));
}
/* Return a static passphrase. The returned value is only valid as
long as no other passphrase related function is called. NULL may
be returned if no passphrase has been set; better use
have_static_passphrase first. */
const char *
get_static_passphrase (void)
{
return fd_passwd;
}
void
read_passphrase_from_fd (int fd)
{
int i, len;
char *pw;
if (!opt.batch && opt.pinentry_mode != PINENTRY_MODE_LOOPBACK)
{ /* Not used but we have to do a dummy read, so that it won't end
up at the begin of the message if the quite usual trick to
prepend the passphtrase to the message is used. */
char buf[1];
while (!(read (fd, buf, 1) != 1 || *buf == '\n'))
;
*buf = 0;
return;
}
for (pw = NULL, i = len = 100; ; i++)
{
if (i >= len-1)
{
char *pw2 = pw;
len += 100;
pw = xmalloc_secure (len);
if (pw2)
{
memcpy (pw, pw2, i);
xfree (pw2);
}
else
i = 0;
}
if (read (fd, pw+i, 1) != 1 || pw[i] == '\n')
break;
}
pw[i] = 0;
if (!opt.batch && opt.pinentry_mode != PINENTRY_MODE_LOOPBACK)
tty_printf("\b\b\b \n" );
xfree (fd_passwd);
fd_passwd = pw;
}