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/* Utility and Unix shadow routines for XEmacs on Windows NT.
Copyright (C) 1994, 1995 Free Software Foundation, Inc.
This file is part of XEmacs.
XEmacs 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, or (at your option) any
later version.
XEmacs 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 XEmacs; see the file COPYING. If not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.
Geoff Voelker (voelker@cs.washington.edu) 7-29-94 */
/* Adapted for XEmacs by David Hobley <david@spook-le0.cia.com.au> */
/* Sync'ed with Emacs 19.34.6 by Marc Paquette <marcpa@cam.org> */
/* Adapted to fpTeX 0.4 by Fabrice Popineau <Fabrice.Popineau@supelec.fr> */
#include <win32lib.h>
#include <shlobj.h>
char initial_directory[MAXPATHLEN];
static char *cached_home_directory;
void
uncache_home_directory (void)
{
cached_home_directory = NULL; /* in some cases, this may cause the leaking
of a few bytes */
}
int output_home_warning = 0;
void
set_home_warning() {
output_home_warning = 1;
}
/* Returns the home directory, in external format */
char *
get_home_directory (void)
{
if (cached_home_directory != NULL)
goto done;
if ((cached_home_directory = getenv("HOME")) != NULL) {
char q[MAXPATHLEN];
/* In case it is %HOMEDRIVE%%HOMEPATH% */
if (ExpandEnvironmentStrings(cached_home_directory, q, sizeof(q)) == 0) {
/* Error */
cached_home_directory = NULL;
}
else {
cached_home_directory = xstrdup(q);
goto done;
}
}
{
char *homedrive, *homepath;
if ((homedrive = getenv("HOMEDRIVE")) != NULL &&
(homepath = getenv("HOMEPATH")) != NULL) {
cached_home_directory = concat(homedrive, homepath);
goto done;
}
}
/* This method is the prefered one because even if it requires a more recent shell32.dll,
it does not need to call SHMalloc()->Free() */
{
/* This will probably give the wrong value */
char q [MAXPATHLEN];
HINSTANCE h;
HRESULT (WINAPI * p1)(HWND, LPSTR, int, BOOL);
HWND (WINAPI * p2)(void);
HWND hwnd = NULL;
if (h = LoadLibrary("user32.dll")) {
if (p2 = GetProcAddress(h, "GetDesktopWindow"))
hwnd = (*p2)();
FreeLibrary(h);
}
if (hwnd && (h = LoadLibrary("shell32.dll")) != NULL) {
if (p1 = GetProcAddress(h, "SHGetSpecialFolderPathA"))
if ((*p1)(hwnd, q, CSIDL_PERSONAL, TRUE)) {
cached_home_directory = xstrdup(q);
}
FreeLibrary(h);
}
if (cached_home_directory) goto done;
}
if (output_home_warning) {
fprintf(stderr, "fpTeX has been unable to determine a good value for the user's $HOME\n"
" directory, and will be using the value:\n"
" %s\n"
" This is probably incorrect.\n",
cached_home_directory
);
}
done:
return cached_home_directory;
}
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