mirror of git://git.gnupg.org/gnupg.git
127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/* homedir.c - Setup the home directory.
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* Copyright (C) 2004, 2006 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 2 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, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <fcntl.h>
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#ifdef HAVE_W32_SYSTEM
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#include <shlobj.h>
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#ifndef CSIDL_APPDATA
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#define CSIDL_APPDATA 0x001a
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#endif
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#ifndef CSIDL_LOCAL_APPDATA
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#define CSIDL_LOCAL_APPDATA 0x001c
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#endif
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#ifndef CSIDL_FLAG_CREATE
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#define CSIDL_FLAG_CREATE 0x8000
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#endif
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#endif /*HAVE_W32_SYSTEM*/
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#include "util.h"
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#include "sysutils.h"
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/* This is a helper function to load a Windows function from either of
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one DLLs. */
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#ifdef HAVE_W32_SYSTEM
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static HRESULT
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w32_shgetfolderpath (HWND a, int b, HANDLE c, DWORD d, LPSTR e)
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{
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static int initialized;
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static HRESULT (WINAPI * func)(HWND,int,HANDLE,DWORD,LPSTR);
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if (!initialized)
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{
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static char *dllnames[] = { "shell32.dll", "shfolder.dll", NULL };
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void *handle;
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int i;
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initialized = 1;
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for (i=0, handle = NULL; !handle && dllnames[i]; i++)
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{
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handle = dlopen (dllnames[i], RTLD_LAZY);
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if (handle)
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{
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func = dlsym (handle, "SHGetFolderPathA");
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if (!func)
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{
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dlclose (handle);
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handle = NULL;
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}
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}
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}
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}
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if (func)
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return func (a,b,c,d,e);
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else
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return -1;
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}
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#endif /*HAVE_W32_SYSTEM*/
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/* Set up the default home directory. The usual --homedir option
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should be parsed later. */
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const char *
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default_homedir (void)
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{
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const char *dir;
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dir = getenv("GNUPGHOME");
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#ifdef HAVE_W32_SYSTEM
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if (!dir || !*dir)
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dir = read_w32_registry_string (NULL, "Software\\GNU\\GnuPG", "HomeDir");
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if (!dir || !*dir)
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{
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char path[MAX_PATH];
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/* It might be better to use LOCAL_APPDATA because this is
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defined as "non roaming" and thus more likely to be kept
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locally. For private keys this is desired. However, given
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that many users copy private keys anyway forth and back,
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using a system roaming services might be better than to let
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them do it manually. A security conscious user will anyway
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use the registry entry to have better control. */
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if (w32_shgetfolderpath (NULL, CSIDL_APPDATA|CSIDL_FLAG_CREATE,
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NULL, 0, path) >= 0)
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{
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char *tmp = xmalloc (strlen (path) + 6 +1);
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strcpy (stpcpy (tmp, path), "\\gnupg");
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dir = tmp;
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/* Try to create the directory if it does not yet
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exists. */
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if (access (dir, F_OK))
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CreateDirectory (dir, NULL);
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}
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}
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#endif /*HAVE_W32_SYSTEM*/
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if (!dir || !*dir)
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dir = GNUPG_DEFAULT_HOMEDIR;
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return dir;
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}
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