sm/misc.c

   1 /* misc.c - Miscellaneous fucntions
   2  * Copyright (C) 2004, 2009 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 3 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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <config.h>
  21 #include <errno.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <ctype.h>
  26 #include <unistd.h>
  27 #ifdef HAVE_LOCALE_H
  28 #include <locale.h>
  29 #endif
  30
  31 #include "gpgsm.h"
  32 #include "i18n.h"
  33 #include "setenv.h"
  34
  35 /* Setup the environment so that the pinentry is able to get all
  36    required information.  This is used prior to an exec of the
  37    protect-tool. */
  38 void
  39 setup_pinentry_env (void)
  40 {
  41 #ifndef HAVE_W32_SYSTEM
  42   char *lc;
  43   const char *name, *value;
  44   int iterator;
  45
  46   /* Try to make sure that GPG_TTY has been set.  This is needed if we
  47      call for example the protect-tools with redirected stdin and thus
  48      it won't be able to ge a default by itself.  Try to do it here
  49      but print a warning.  */
  50   value = session_env_getenv (opt.session_env, "GPG_TTY");
  51   if (value)
  52     setenv ("GPG_TTY", value, 1);
  53   else if (!(lc=getenv ("GPG_TTY")) || !*lc)
  54     {
  55       log_error (_("GPG_TTY has not been set - "
  56                    "using maybe bogus default\n"));
  57       lc = ttyname (0);
  58       if (!lc)
  59         lc = "/dev/tty";
  60       setenv ("GPG_TTY", lc, 1);
  61     }
  62
  63   if (opt.lc_ctype)
  64     setenv ("LC_CTYPE", opt.lc_ctype, 1);
  65 #if defined(HAVE_SETLOCALE) && defined(LC_CTYPE)
  66   else if ( (lc = setlocale (LC_CTYPE, "")) )
  67     setenv ("LC_CTYPE", lc, 1);
  68 #endif
  69
  70   if (opt.lc_messages)
  71     setenv ("LC_MESSAGES", opt.lc_messages, 1);
  72 #if defined(HAVE_SETLOCALE) && defined(LC_MESSAGES)
  73   else if ( (lc = setlocale (LC_MESSAGES, "")) )
  74     setenv ("LC_MESSAGES", lc, 1);
  75 #endif
  76
  77   iterator = 0;
  78   while ((name = session_env_list_stdenvnames (&iterator, NULL)))
  79     {
  80       if (!strcmp (name, "GPG_TTY"))
  81         continue;  /* Already set.  */
  82       value = session_env_getenv (opt.session_env, name);
  83       if (value)
  84         setenv (name, value, 1);
  85     }
  86
  87 #endif /*!HAVE_W32_SYSTEM*/
  88 }
  89