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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 <sys/dir.h>
#include <win32lib.h>
/* Emulate the Unix directory procedures opendir, closedir,
and readdir. We can't use the procedures supplied in sysdep.c,
so we provide them here. */
struct direct dir_static; /* simulated directory contents */
HANDLE dir_find_handle = INVALID_HANDLE_VALUE;
static int dir_is_fat;
char dir_pathname[MAXPATHLEN+1];
WIN32_FIND_DATA dir_find_data;
DIR *
opendir (const char *filename)
{
DIR *dirp;
/* Opening is done by FindFirstFile. However, a read is inherent to
this operation, so we defer the open until read time. */
if (!(dirp = (DIR *)xmalloc(sizeof(DIR))))
return NULL;
ZeroMemory(dirp, sizeof(DIR));
if (dir_find_handle != INVALID_HANDLE_VALUE)
return NULL;
dirp->dd_fd = 0;
dirp->dd_loc = 0;
dirp->dd_size = 0;
strncpy (dir_pathname, map_win32_filename (filename, NULL), MAXPATHLEN);
dir_pathname[MAXPATHLEN] = '\0';
dir_is_fat = is_fat_volume (filename, NULL);
return dirp;
}
void
closedir (DIR *dirp)
{
/* If we have a find-handle open, close it. */
if (dir_find_handle != INVALID_HANDLE_VALUE)
{
FindClose (dir_find_handle);
dir_find_handle = INVALID_HANDLE_VALUE;
}
free (dirp);
}
struct direct *
readdir (DIR *dirp)
{
/* If we aren't dir_finding, do a find-first, otherwise do a find-next. */
if (dir_find_handle == INVALID_HANDLE_VALUE)
{
char filename[MAXNAMLEN + 3];
int ln;
strcpy (filename, dir_pathname);
ln = strlen (filename) - 1;
if (!IS_DIR_SEP (filename[ln]))
strcat (filename, "\\");
strcat (filename, "*");
dir_find_handle = FindFirstFile (filename, &dir_find_data);
if (dir_find_handle == INVALID_HANDLE_VALUE)
return NULL;
}
else
{
if (!FindNextFile (dir_find_handle, &dir_find_data))
return NULL;
}
/* Emacs never uses this value, so don't bother making it match
value returned by stat(). */
dir_static.d_ino = 1;
dir_static.d_reclen = sizeof (struct direct) - MAXNAMLEN + 3 +
dir_static.d_namlen - dir_static.d_namlen % 4;
dir_static.d_namlen = strlen (dir_find_data.cFileName);
strcpy (dir_static.d_name, dir_find_data.cFileName);
if (dir_is_fat)
_strlwr (dir_static.d_name);
else
#if 0
if (!NILP (Vmswindows_downcase_file_names))
#endif
{
char *p;
for (p = dir_static.d_name; *p; p++)
if (*p >= 'a' && *p <= 'z')
break;
if (!*p)
_strlwr (dir_static.d_name);
}
return &dir_static;
}
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