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/* asshelp.c - Helper functions for Assuan
* Copyright (C) 2002, 2004 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#ifdef HAVE_LOCALE_H
#include <locale.h>
#endif
#include "util.h"
#include "asshelp.h"
/* Send the assuan command pertaining to the pinenry environment. The
OPT_* arguments are optional and may be used to overide the
defaults taken from the current locale. */
gpg_error_t
send_pinentry_environment (assuan_context_t ctx,
const char *opt_display,
const char *opt_ttyname,
const char *opt_ttytype,
const char *opt_lc_ctype,
const char *opt_lc_messages)
{
int rc = 0;
char *dft_display = NULL;
char *dft_ttyname = NULL;
char *dft_ttytype = NULL;
char *old_lc = NULL;
char *dft_lc = NULL;
dft_display = getenv ("DISPLAY");
if (opt_display || dft_display)
{
char *optstr;
if (asprintf (&optstr, "OPTION display=%s",
opt_display ? opt_display : dft_display) < 0)
return gpg_error_from_errno (errno);
rc = assuan_transact (ctx, optstr, NULL, NULL, NULL, NULL, NULL,
NULL);
free (optstr);
if (rc)
return map_assuan_err (rc);
}
if (!opt_ttyname)
{
dft_ttyname = getenv ("GPG_TTY");
if ((!dft_ttyname || !*dft_ttyname) && ttyname (0))
dft_ttyname = ttyname (0);
}
if (opt_ttyname || dft_ttyname)
{
char *optstr;
if (asprintf (&optstr, "OPTION ttyname=%s",
opt_ttyname ? opt_ttyname : dft_ttyname) < 0)
return gpg_error_from_errno (errno);
rc = assuan_transact (ctx, optstr, NULL, NULL, NULL, NULL, NULL,
NULL);
free (optstr);
if (rc)
return map_assuan_err (rc);
}
dft_ttytype = getenv ("TERM");
if (opt_ttytype || (dft_ttyname && dft_ttytype))
{
char *optstr;
if (asprintf (&optstr, "OPTION ttytype=%s",
opt_ttyname ? opt_ttytype : dft_ttytype) < 0)
return gpg_error_from_errno (errno);
rc = assuan_transact (ctx, optstr, NULL, NULL, NULL, NULL, NULL,
NULL);
free (optstr);
if (rc)
return map_assuan_err (rc);
}
#if defined(HAVE_SETLOCALE) && defined(LC_CTYPE)
old_lc = setlocale (LC_CTYPE, NULL);
if (old_lc)
{
old_lc = strdup (old_lc);
if (!old_lc)
return gpg_error_from_errno (errno);
}
dft_lc = setlocale (LC_CTYPE, "");
#endif
if (opt_lc_ctype || (dft_ttyname && dft_lc))
{
char *optstr;
if (asprintf (&optstr, "OPTION lc-ctype=%s",
opt_lc_ctype ? opt_lc_ctype : dft_lc) < 0)
rc = gpg_error_from_errno (errno);
else
{
rc = assuan_transact (ctx, optstr, NULL, NULL, NULL, NULL, NULL,
NULL);
free (optstr);
if (rc)
rc = map_assuan_err (rc);
}
}
#if defined(HAVE_SETLOCALE) && defined(LC_CTYPE)
if (old_lc)
{
setlocale (LC_CTYPE, old_lc);
free (old_lc);
}
#endif
if (rc)
return rc;
#if defined(HAVE_SETLOCALE) && defined(LC_MESSAGES)
old_lc = setlocale (LC_MESSAGES, NULL);
if (old_lc)
{
old_lc = strdup (old_lc);
if (!old_lc)
return gpg_error_from_errno (errno);
}
dft_lc = setlocale (LC_MESSAGES, "");
#endif
if (opt_lc_messages || (dft_ttyname && dft_lc))
{
char *optstr;
if (asprintf (&optstr, "OPTION lc-messages=%s",
opt_lc_messages ? opt_lc_messages : dft_lc) < 0)
rc = gpg_error_from_errno (errno);
else
{
rc = assuan_transact (ctx, optstr, NULL, NULL, NULL, NULL, NULL,
NULL);
free (optstr);
if (rc)
rc = map_assuan_err (rc);
}
}
#if defined(HAVE_SETLOCALE) && defined(LC_MESSAGES)
if (old_lc)
{
setlocale (LC_MESSAGES, old_lc);
free (old_lc);
}
#endif
return rc;
}
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