sm/misc.c

   1 /* misc.c - Miscellaneous fucntions
   2  *      Copyright (C) 2004 Free Software Foundation, Inc.
   3  *
   4  * This file is part of GnuPG.
   5  *
   6  * GnuPG is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * GnuPG is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19  * USA.
  20  */
  21
  22 #include <config.h>
  23 #include <errno.h>
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <ctype.h>
  28 #include <unistd.h>
  29 #ifdef HAVE_LOCALE_H
  30 #include <locale.h>
  31 #endif
  32
  33 #include "gpgsm.h"
  34 #include "i18n.h"
  35 #include "setenv.h"
  36
  37 /* Setup the environment so that the pinentry is able to get all
  38    required information.  This is used prior to an exec of the
  39    protect-tool. */
  40 void
  41 setup_pinentry_env (void)
  42 {
  43 #ifndef HAVE_W32_SYSTEM
  44   char *lc;
  45
  46   if (opt.display)
  47     setenv ("DISPLAY", opt.display, 1);
  48
  49   /* Try to make sure that GPG_TTY has been set.  This is needed if we
  50      call for example the protect-tools with redirected stdin and thus
  51      it won't be able to ge a default by itself.  Try to do it here
  52      but print a warning.  */
  53   if (opt.ttyname)
  54     setenv ("GPG_TTY", opt.ttyname, 1);
  55   else if (!(lc=getenv ("GPG_TTY")) || !*lc)
  56     {
  57       log_error (_("GPG_TTY has not been set - "
  58                    "using maybe bogus default\n"));
  59       lc = ttyname (0);
  60       if (!lc)
  61         lc = "/dev/tty";
  62       setenv ("GPG_TTY", lc, 1);
  63     }
  64
  65   if (opt.ttytype)
  66     setenv ("TERM", opt.ttytype, 1);
  67
  68   if (opt.lc_ctype)
  69     setenv ("LC_CTYPE", opt.lc_ctype, 1);
  70 #if defined(HAVE_SETLOCALE) && defined(LC_CTYPE)
  71   else if ( (lc = setlocale (LC_CTYPE, "")) )
  72     setenv ("LC_CTYPE", lc, 1);
  73 #endif
  74
  75   if (opt.lc_messages)
  76     setenv ("LC_MESSAGES", opt.lc_messages, 1);
  77 #if defined(HAVE_SETLOCALE) && defined(LC_MESSAGES)
  78   else if ( (lc = setlocale (LC_MESSAGES, "")) )
  79     setenv ("LC_MESSAGES", lc, 1);
  80 #endif
  81 #endif /*!HAVE_W32_SYSTEM*/
  82 }
  83